Ryuta Koyama - Publications

Affiliations: 
Tokyo University, Minato-ku, Tōkyō-to, Japan 

271 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Kono R, Ikegaya Y, Koyama R. Phagocytic Glial Cells in Brain Homeostasis. Cells. 10. PMID 34072424 DOI: 10.3390/cells10061348  1
2021 Andoh M, Koyama R. Assessing Microglial Dynamics by Live Imaging. Frontiers in Immunology. 12: 617564. PMID 33763064 DOI: 10.3389/fimmu.2021.617564  1
2021 Okada M, Kono R, Sato Y, Kobayashi C, Koyama R, Ikegaya Y. Highly active neurons emerging in vitro. Journal of Neurophysiology. PMID 33656933 DOI: 10.1152/jn.00663.2020  1
2021 Andoh M, Koyama R. Microglia regulate synaptic development and plasticity. Developmental Neurobiology. PMID 33583110 DOI: 10.1002/dneu.22814  1
2021 Zhou Z, Okamoto K, Onodera J, Hiragi T, Andoh M, Ikawa M, Tanaka KF, Ikegaya Y, Koyama R. Astrocytic cAMP modulates memory via synaptic plasticity. Proceedings of the National Academy of Sciences of the United States of America. 118. PMID 33452135 DOI: 10.1073/pnas.2016584118  1
2021 Kinoshita S, Koyama R. Pro- and anti-epileptic roles of microglia. Neural Regeneration Research. 16: 1369-1371. PMID 33318419 DOI: 10.4103/1673-5374.300976  0.04
2020 Onodera J, Nagata H, Nakashima A, Ikegaya Y, Koyama R. Neuronal brain-derived neurotrophic factor manipulates microglial dynamics. Glia. PMID 33119934 DOI: 10.1002/glia.23934  1
2020 Andoh M, Ikegaya Y, Koyama R. Microglia modulate the structure and function of the hippocampus after early-life seizures. Journal of Pharmacological Sciences. 144: 212-217. PMID 33070840 DOI: 10.1016/J.Jphs.2020.09.003  1
2020 Araki T, Ikegaya Y, Koyama R. The effects of microglia- and astrocyte-derived factors on neurogenesis in health and disease. The European Journal of Neuroscience. PMID 32920880 DOI: 10.1111/Ejn.14969  1
2020 Ogaki A, Araki T, Ishikawa M, Ikegaya Y, Koyama R. A live imaging-friendly slice culture method using collagen membranes. Neuropsychopharmacology Reports. PMID 32757372 DOI: 10.1002/npr2.12128  1
2020 Andoh M, Ikegaya Y, Koyama R. Microglia in animal models of autism spectrum disorders. Progress in Molecular Biology and Translational Science. 173: 239-273. PMID 32711812 DOI: 10.1016/Bs.Pmbts.2020.04.012  1
2020 Andoh M, Koyama R. Exercise, microglia, and beyond - workout to communicate with microglia. Neural Regeneration Research. 15: 2029-2030. PMID 32394951 DOI: 10.4103/1673-5374.282241  1
2020 Ogaki A, Ikegaya Y, Koyama R. Vascular Abnormalities and the Role of Vascular Endothelial Growth Factor in the Epileptic Brain. Frontiers in Pharmacology. 11: 20. PMID 32116699 DOI: 10.3389/Fphar.2020.00020  1
2019 Andoh M, Ikegaya Y, Koyama R. Synaptic Pruning by Microglia in Epilepsy. Journal of Clinical Medicine. 8. PMID 31818018 DOI: 10.3390/Jcm8122170  1
2019 Araki T, Ikegaya Y, Koyama R. Microglia attenuate the kainic acid-induced death of hippocampal neurons in slice cultures. Neuropsychopharmacology Reports. PMID 31794154 DOI: 10.1002/npr2.12086  1
2019 Andoh M, Ikegaya Y, Koyama R. Microglia as possible therapeutic targets for autism spectrum disorders. Progress in Molecular Biology and Translational Science. 167: 223-245. PMID 31601405 DOI: 10.1016/Bs.Pmbts.2019.06.012  1
2019 Kono R, Kim GL, Nagata H, Ikegaya Y, Koyama R. Induced neuronal activity does not attenuate amyloid beta-induced synaptic loss in vitro. Neuropsychopharmacology Reports. PMID 31376224 DOI: 10.1002/npr2.12074  1
2019 Andoh M, Shibata K, Okamoto K, Onodera J, Morishita K, Miura Y, Ikegaya Y, Koyama R. Exercise Reverses Behavioral and Synaptic Abnormalities after Maternal Inflammation. Cell Reports. 27: 2817-2825.e5. PMID 31167129 DOI: 10.1016/J.Celrep.2019.05.015  1
2019 Orita K, Sawada K, Koyama R, Ikegaya Y. Deep learning-based quality control of cultured human-induced pluripotent stem cell-derived cardiomyocytes. Journal of Pharmacological Sciences. PMID 31113731 DOI: 10.1016/J.Jphs.2019.04.008  1
2019 Kasahara Y, Igata H, Sasaki T, Ikegaya Y, Koyama R. The Pharmacological Assessment of GABA Receptor Activation in Experimental Febrile Seizures in Mice. Eneuro. 6. PMID 31058209 DOI: 10.1523/ENEURO.0429-18.2019  1
2019 Zhou Z, Ikegaya Y, Koyama R. The Astrocytic cAMP Pathway in Health and Disease. International Journal of Molecular Sciences. 20. PMID 30759771 DOI: 10.3390/Ijms20030779  1
2018 Koyama R, Ikegaya Y. The Molecular and Cellular Mechanisms of Axon Guidance in Mossy Fiber Sprouting. Frontiers in Neurology. 9: 382. PMID 29896153 DOI: 10.3389/Fneur.2018.00382  1
2018 Hoshi Y, Okabe K, Shibasaki K, Funatsu T, Matsuki N, Ikegaya Y, Koyama R. Ischemic brain injury leads to brain edema via hyperthermia-induced TRPV4 activation. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. PMID 29793978 DOI: 10.1523/Jneurosci.2888-17.2018  1
2018 Kasahara Y, Ikegaya Y, Koyama R. Neonatal Seizure Models to Study Epileptogenesis. Frontiers in Pharmacology. 9: 385. PMID 29720941 DOI: 10.3389/Fphar.2018.00385  1
2018 Hiragi T, Ikegaya Y, Koyama R. Microglia after Seizures and in Epilepsy. Cells. 7. PMID 29597334 DOI: 10.3390/Cells7040026  1
2017 Kasahara Y, Ikegaya Y, Koyama R. [Mouse model of febrile seizures]. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 150: 240-245. PMID 29118287 DOI: 10.1254/Fpj.150.240  1
2017 Hiragi T, Andoh M, Araki T, Shirakawa T, Ono T, Koyama R, Ikegaya Y. Differentiation of Human Induced Pluripotent Stem Cell (hiPSC)-Derived Neurons in Mouse Hippocampal Slice Cultures. Frontiers in Cellular Neuroscience. 11: 143. PMID 28567004 DOI: 10.3389/Fncel.2017.00143  1
2016 Luo C, Ikegaya Y, Koyama R. Microglia and neurogenesis in the epileptic dentate gyrus. Neurogenesis (Austin, Tex.). 3: e1235525. PMID 27928548 DOI: 10.1080/23262133.2016.1235525  1
2016 Mikami Y, Kanemaru K, Okubo Y, Nakaune T, Suzuki J, Shibata K, Sugiyama H, Koyama R, Murayama T, Ito A, Yamazawa T, Ikegaya Y, Sakurai T, Saito N, Kakizawa S, et al. Nitric Oxide-induced Activation of the Type 1 Ryanodine Receptor Is Critical for Epileptic Seizure-induced Neuronal Cell Death. Ebiomedicine. PMID 27544065 DOI: 10.1016/J.Ebiom.2016.08.020  1
2016 Andoh M, Ikegaya Y, Koyama R. Autism spectrum disorders and epilepsy. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 148: 121-2. PMID 27478051 DOI: 10.1254/Fpj.148.121  1
2016 Luo C, Koyama R, Ikegaya Y. Microglia engulf viable newborn cells in the epileptic dentate gyrus. Glia. PMID 27301702 DOI: 10.1002/Glia.23018  1
2016 Koyama R. Dentate Circuitry as a Model to Study Epileptogenesis. Biological & Pharmaceutical Bulletin. 39: 891-6. PMID 27251488 DOI: 10.1248/Bpb.B16-00125  0.01
2016 Ohki M, Sugiyama K, Kawai F, Tanaka H, Nihei Y, Unzai S, Takebe M, Matsunaga S, Adachi SI, Shibayama N, Zhou Z, Koyama R, Ikegaya Y, Takahashi T, Tame JR, et al. Structural insight into photoactivation of an adenylate cyclase from a photosynthetic cyanobacterium. Proceedings of the National Academy of Sciences of the United States of America. PMID 27247413 DOI: 10.1073/Pnas.1517520113  1
2016 Kasahara Y, Koyama R, Ikegaya Y. Depth and time-dependent heterogeneity of microglia in mouse hippocampal slice cultures. Neuroscience Research. PMID 27211829 DOI: 10.1016/J.Neures.2016.05.001  1
2016 Zhou Z, Tanaka KF, Matsunaga S, Iseki M, Watanabe M, Matsuki N, Ikegaya Y, Koyama R. Photoactivated adenylyl cyclase (PAC) reveals novel mechanisms underlying cAMP-dependent axonal morphogenesis. Scientific Reports. 5: 19679. PMID 26795422 DOI: 10.1038/Srep19679  1
2016 Tao K, Ichikawa J, Matsuki N, Ikegaya Y, Koyama R. Experimental febrile seizures induce age-dependent structural plasticity and improve memory in mice. Neuroscience. 318: 34-44. PMID 26794590 DOI: 10.1016/J.Neuroscience.2016.01.011  1
2016 Sajo M, Sugiyama H, Yamamoto H, Tanii T, Matsuki N, Ikegaya Y, Koyama R. Neuraminidase-Dependent Degradation of Polysialic Acid Is Required for the Lamination of Newly Generated Neurons. Plos One. 11: e0146398. PMID 26731280 DOI: 10.1371/Journal.Pone.0146398  1
2015 Hakamata W, Koyama R, Tanida M, Haga T, Hirano T, Akao M, Kumagai H, Nishio T. A Simple Synthesis of Alliin and allo-Alliin: X-Ray Diffraction Analysis and Determination of Their Absolute Configuration. Journal of Agricultural and Food Chemistry. PMID 26638713 DOI: 10.1021/Acs.Jafc.5B05501  1
2015 Zhou Z, Luo C, Koyama R. Early childhood stress and neuropsychiatric disease. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 146: 263-7. PMID 26558311 DOI: 10.1254/fpj.146.263  1
2015 Shukuya T, Ko R, Mori K, Kato M, Yagishita S, Kanemaru R, Honma Y, Shibayama R, Koyama R, Shimada N, Takahashi K. Prognostic factors in non-small cell lung cancer patients who are recommended to receive single-agent chemotherapy (docetaxel or pemetrexed) as a second- or third-line chemotherapy: in the era of oncogenic drivers and molecular-targeted agents. Cancer Chemotherapy and Pharmacology. PMID 26259641 DOI: 10.1007/s00280-015-2843-3  1
2015 Zhiwen Z, Koyama R. [Photoactivated adenylyl cyclase, a new optogenetic tool for neurobiology]. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 146: 119. PMID 26256751 DOI: 10.1254/fpj.146.119  1
2015 Yoshikawa GT, Dias GA, Fujihara S, Ferreira e Silva L, Cruz Lde B, Fuzii HT, Koyama RV. Formation of multiple pulmonary nodules during treatment with leflunomide. Jornal Brasileiro De Pneumologia : Publicaça̋O Oficial Da Sociedade Brasileira De Pneumologia E Tisilogia. 41: 281-4. PMID 26176527 DOI: 10.1590/S1806-37132015000004247  1
2015 Dias GA, Yoshikawa GT, Koyama RV, Fujihara S, Martins LC, Medeiros R, Quaresma JA, Fuzii HT. Neurological manifestations in individuals with HTLV-1-associated myelopathy/tropical spastic paraparesis in the Amazon. Spinal Cord. PMID 26169165 DOI: 10.1038/sc.2015.112  1
2015 Koyama R. Findings from FEBSTAT study. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 146: 66. PMID 26165345 DOI: 10.1254/fpj.146.66  1
2015 Koyama R, Ikegaya Y. Microglia in the pathogenesis of autism spectrum disorders. Neuroscience Research. 100: 1-5. PMID 26116891 DOI: 10.1016/J.Neures.2015.06.005  1
2015 Akiyama S, Imamura T, Koyama R, Tamura T, Koizumi Y, Takeuchi K. Adrenal Metastasis and Hemorrhage Secondary to Hepatocellular Carcinoma. Internal Medicine (Tokyo, Japan). 54: 1513-7. PMID 26073241 DOI: 10.2169/internalmedicine.54.4115  1
2015 Tamura T, Kikuchi D, Imamura T, Koizumi Y, Koyama R, Kaise M, Takeuchi K. Feasibility of a thumb-controlled device in double-balloon enteroscopy-assisted ERCP. Endoscopy. 47: E163-4. PMID 25926182 DOI: 10.1055/s-0034-1391423  0.01
2015 Tamura T, Kikuchi D, Imamura T, Koizumi Y, Koyama R, Kaise M, Takeuchi K. Feasibility of a thumb-controlled device in double-balloon enteroscopy-assisted ERCP. Endoscopy. 47: E163-E164. PMID 25912066 DOI: 10.1055/s-0034-1391423  1
2015 Nagamachi Y, Yamauchi N, Muramatsu H, Miyajima N, Inomata H, Okamoto T, Nozawa E, Gotoh Y, Koyama R, Ihara K, Nishisato T, Kato J. Improvement of hepatomegaly after treatment with autologous hematopoietic stem cell transplantation followed by bortezomib and dexamethasone in Bence-Jones protein κ-type of multiple myeloma with systemic amyloidosis. [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology. 56: 323-8. PMID 25876787 DOI: 10.11406/rinketsu.56.323  1
2015 Quaresma JAS, Yoshikawa GT, Koyama RVL, Dias GAS, Fujihara S, Fuzii HT. HTLV-1, immune response and autoimmunity Viruses. 8. DOI: 10.3390/v8010005  1
2015 Manaka T, Itoh G, Koyama R. Behavior of hydrogen in a tensile-deformed Al-Mg alloy Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 79: 137-141. DOI: 10.2320/jinstmet.JC201411  1
2015 Yamamoto LY, Koyama R, De Assis AM, Borges WFS, De Oliveira IR, Roberto SR. Color of berry and juice of 'Isabel' grape treated with abscisic acid in different ripening stages Pesquisa Agropecuaria Brasileira. 50: 1160-1167. DOI: 10.1590/S0100-204X2015001200005  1
2015 Koyama R, Fujita K, Takewaki I. Influence of wind disturbance on smart stiffness identification of building structure using limited micro-tremor observation Structural Engineering and Mechanics. 56: 293-315. DOI: 10.12989/sem.2015.56.2.293  1
2015 Roberto SR, Borges WFS, Colombo RC, Koyama R, Hussain I, de Souza RT. Berry-cluster thinning to prevent bunch compactness of 'BRS Vitoria', a new black seedless grape Scientia Horticulturae. 197: 297-303. DOI: 10.1016/j.scienta.2015.09.049  1
2015 Youssef K, Roberto SR, Chiarotti F, Koyama R, Hussain I, de Souza RT. Control of Botrytis mold of the new seedless grape 'BRS Vitoria' during cold storage Scientia Horticulturae. 193: 316-321. DOI: 10.1016/j.scienta.2015.07.026  1
2015 Koyama R, Ikegaya Y. Microglia in the pathogenesis of autism spectrum disorders Neuroscience Research. DOI: 10.1016/j.neures.2015.06.005  1
2014 Arai T, Koyama R, Yuasa M, Kitamura D, Mizuta R. Acrolein, a highly toxic aldehyde generated under oxidative stress in vivo, aggravates the mouse liver damage after acetaminophen overdose. Biomedical Research (Tokyo, Japan). 35: 389-95. PMID 25743345 DOI: 10.2220/biomedres.35.389  1
2014 Koyama R. [Excitatory GABA signaling in epilepsy]. Seikagaku. the Journal of Japanese Biochemical Society. 86: 803-6. PMID 25675822  1
2014 Koyama R. [Cellular and molecular mechanisms underlying aberrant network reorganization in the epileptic brain]. Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan. 134: 1171-7. PMID 25366914 DOI: 10.1248/Yakushi.14-00196  1
2014 Akiyama S, Imamura T, Tamura T, Koizumi Y, Koyama R, Takeuchi K, Watanabe G. Recurrent common bile duct stones composed of ursodeoxycholic acid: a report of four cases. Internal Medicine (Tokyo, Japan). 53: 2489-92. PMID 25366008 DOI: DN/JST.JSTAGE/internalmedicine/53.2886  1
2014 Koyama RV, Silva LF, Henriques VB, Tran C, Yoshikawa GT. Pure red cell aplasia associated with systemic lupus erythematosus. Acta ReumatolóGica Portuguesa. 39: 265-8. PMID 25326408  1
2014 Kato M, Shukuya T, Takahashi F, Mori K, Suina K, Asao T, Kanemaru R, Honma Y, Muraki K, Sugano K, Shibayama R, Koyama R, Shimada N, Takahashi K. Pemetrexed for advanced non-small cell lung cancer patients with interstitial lung disease. Bmc Cancer. 14: 508. PMID 25012241 DOI: 10.1186/1471-2407-14-508  1
2014 Tao K, Matsuki N, Koyama R. AMP-activated protein kinase mediates activity-dependent axon branching by recruiting mitochondria to axon. Developmental Neurobiology. 74: 557-73. PMID 24218086 DOI: 10.1002/Dneu.22149  1
2014 Tamura M, Sasaki Y, Koyama R, Takeda K, Idogawa M, Tokino T. Forkhead transcription factor FOXF1 is a novel target gene of the p53 family and regulates cancer cell migration and invasiveness. Oncogene. 33: 4837-46. PMID 24186199 DOI: 10.1038/onc.2013.427  1
2014 Koyama R, Yamamoto LY, Borges WFS, Pascholati MB, De Sá Borges R, De Assis AM, Roberto SR. Application time and concentrations of abscisic acid on the color development of 'Isabel' grapes | Épocas de aplicação e concentrações de ácido abscísico no incremento da cor da uva 'Isabel' Semina:Ciencias Agrarias. 35: 1697-1705. DOI: 10.5433/1679-0359.2014v35n4p1697  1
2014 Koyama R, De Assis AM, Cardoso C, Moritz A, Ortiz TA, Roberto SR. Cutting rooting of litchi treated with indolebutyric acid and different substrates | Enraizamento de estacas de lichieira tratadas com aćido indolbutírico e substratos Revista Brasileirade Ciencias Agrarias. 9: 384-388. DOI: 10.5039/agraria.v9i3a3767  1
2014 Pham QC, De Mello MT, Narciso FV, Neto MM, Teixeira CW, Antonietti LS, Garbuio SA, Fernandes Júnior SDA, Fernandes Júnior SdA, Koyama RG, Duarte M, Tufik S. Robust evaluation of time since awakening using force platform posturography Revista Brasileira De Engenharia Biomedica. 30: 322-329. DOI: 10.1590/1517-3151.0611  1
2014 Hussain I, de Assis AM, Yamamoto LY, Koyama R, Roberto SR. Indole butyric acid and substrates influence on multiplication of blackberry ‘Xavante’ | Influência do ácido indol butírico e substratos na propagação de amoreira-preta ‘Xavante’ Ciencia Rural. 44: 1761-1765. DOI: 10.1590/0103-8478cr20131204  1
2014 Koyama R, Itoh G. Hydrogen emission at grain boundaries in tensile-deformed Al-9%Mg alloy by hydrogen microprint technique Transactions of Nonferrous Metals Society of China (English Edition). 24: 2102-2106. DOI: 10.1016/S1003-6326(14)63318-5  1
2014 Koyama R, de Assis AM, Yamamoto LY, Borges WF, Sá Borges Rd, Prudêncio SH, Roberto SR. Exogenous abscisic acid increases the anthocyanin concentration of berry and juice from 'Isabel' grapes (Vitis labrusca L.) Hortscience. 49: 460-464.  1
2014 Koyama R, Takahashi K. Personalized medicine for lung cancer Respiration and Circulation. 62: 319-324.  1
2013 Shibata K, Nakahara S, Shimizu E, Yamashita T, Matsuki N, Koyama R. Repulsive guidance molecule a regulates hippocampal mossy fiber branching in vitro. Neuroreport. 24: 609-15. PMID 23744345 DOI: 10.1097/Wnr.0B013E3283632C08  1
2013 Nagamachi Y, Yamauchi N, Muramatsu H, Okamoto T, Inomata H, Nozawa E, Koyama R, Ihara K, Nishisato T, Yamada H, Yano T, Tanaka S, Ono K, Kikuchi S, Kato J. Safety and effectiveness of low-dose lenalidomide therapy for multiple myeloma complicated with bortezomib-associated interstitial pneumonia. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 54: 451-6. PMID 23727683 DOI: DN/JST.JSTAGE/rinketsu/54.451  1
2013 Uetake K, Goto A, Koyama R, Kikuchi R, Tanaka T. Effects of single caging and cage size on behavior and stress level of domestic neutered cats housed in an animal shelter. Animal Science Journal = Nihon Chikusan Gakkaihå. 84: 272-4. PMID 23480709 DOI: 10.1111/j.1740-0929.2012.01055.x  1
2013 Koyama R. The use of organotypic slice cultures for the study of epileptogenesis. Neuropathology : Official Journal of the Japanese Society of Neuropathology. 33: 475-9. PMID 23384238 DOI: 10.1111/Neup.12019  1
2013 Aoi W, Naito Y, Takagi T, Tanimura Y, Takanami Y, Kawai Y, Sakuma K, Hang LP, Mizushima K, Hirai Y, Koyama R, Wada S, Higashi A, Kokura S, Ichikawa H, et al. A novel myokine, secreted protein acidic and rich in cysteine (SPARC), suppresses colon tumorigenesis via regular exercise. Gut. 62: 882-9. PMID 22851666 DOI: 10.1136/gutjnl-2011-300776  1
2013 Yamamoto LY, Koyama R, Borges WFS, Antunes LEC, De Assis AM, Roberto SR. Substrates on rooting of blackberry xavante herbaceous cuttings | Substratos no enraizamento de estacas herbáceas de amora-preta xavante Ciencia Rural. 43: 15-20. DOI: 10.1590/S0103-84782012005000135  1
2013 Roberto SR, De Assis AM, Yamamoto LY, Miotto LCV, Koyama R, Sato AJ, Borges RDS. Ethephon use and application timing of abscisic acid for improving color of 'Rubi' table grape Pesquisa Agropecuaria Brasileira. 48: 797-800. DOI: 10.1590/S0100-204X2013000700013  1
2013 Kihara M, Koyama R, Abe Y, Son H, Kobayashi M, Tomita S. Novel field installable optical fiber splice and connector for optical access networks Optical Fiber Technology. 19: 269-278. DOI: 10.1016/j.yofte.2013.02.007  1
2013 Koyama R, Sakamoto N, Fujimaki M, Fukunishi N, Goto A, Hemmi M, Kase M, Suda K, Watanabe T, Yamada K, Kamigaito O. Online monitoring of beam phase and intensity using lock-in amplifiers Nuclear Instruments and Methods in Physics Research, Section a: Accelerators, Spectrometers, Detectors and Associated Equipment. 729: 788-799. DOI: 10.1016/j.nima.2013.08.056  1
2013 Koyama R. Animal Models of Febrile Seizures Animal Models For the Study of Human Disease. 889-901. DOI: 10.1016/B978-0-12-415894-8.00036-1  1
2013 Kihara M, Koyama R, Son H, Tomita S. Novel splicing technique for coated optical fiber connection without stripping or cleaning process Microwave and Optical Technology Letters. 55: 1453-1456. DOI: 10.1002/mop.27636  1
2012 Hanata N, Imamura T, Koyama R, Koizumi Y, Tamura T, Ito J, Takeuch K. [Case report; a case of biliary pseudolithiasis associated with ceftriaxone]. Nihon Naika Gakkai Zasshi. the Journal of the Japanese Society of Internal Medicine. 101: 2955-7. PMID 23214106  1
2012 Muraki K, Koyama R, Honma Y, Yagishita S, Shukuya T, Ohashi R, Takahashi F, Kido K, Iwakami S, Sasaki S, Iwase A, Takahashi K. Hydration with magnesium and mannitol without furosemide prevents the nephrotoxicity induced by cisplatin and pemetrexed in patients with advanced non-small cell lung cancer. Journal of Thoracic Disease. 4: 562-8. PMID 23205279 DOI: 10.3978/j.issn.2072-1439.2012.10.16  1
2012 Suzuki K, Hayashi Y, Nakahara S, Kumazaki H, Prox J, Horiuchi K, Zeng M, Tanimura S, Nishiyama Y, Osawa S, Sehara-Fujisawa A, Saftig P, Yokoshima S, Fukuyama T, Matsuki N, ... Koyama R, et al. Activity-dependent proteolytic cleavage of neuroligin-1. Neuron. 76: 410-22. PMID 23083742 DOI: 10.1016/J.Neuron.2012.10.003  1
2012 Murakami A, Ohashi R, Minakata K, Koyama R, Muraki K, Shukuya T, Namba Y, Ko R, Yagishita S, Katsura Y, Takahashi F, Sakuraba S, Takahashi K. [Efficacy of erlotinib after gefitinib administration in patients with non-small cell lung cancer]. Gan to Kagaku Ryoho. Cancer & Chemotherapy. 39: 1357-61. PMID 22996769  1
2012 Sasaki Y, Koyama R, Maruyama R, Hirano T, Tamura M, Sugisaka J, Suzuki H, Idogawa M, Shinomura Y, Tokino T. CLCA2, a target of the p53 family, negatively regulates cancer cell migration and invasion. Cancer Biology & Therapy. 13: 1512-21. PMID 22990203 DOI: 10.4161/cbt.22280  1
2012 Sasaki Y, Oshima Y, Koyama R, Tamura M, Kashima L, Idogawa M, Yamashita T, Toyota M, Imai K, Shinomura Y, Tokino T. A novel approach to cancer treatment using structural hybrids of the p53 gene family. Cancer Gene Therapy. 19: 749-56. PMID 22956039 DOI: 10.1038/cgt.2012.51  1
2012 Koyama RG, Esteves AM, Oliveira e Silva L, Lira FS, Bittencourt LR, Tufik S, de Mello MT. Prevalence of and risk factors for obstructive sleep apnea syndrome in Brazilian railroad workers. Sleep Medicine. 13: 1028-32. PMID 22841037 DOI: 10.1016/J.Sleep.2012.06.017  1
2012 Koyama R, Tao K, Sasaki T, Ichikawa J, Miyamoto D, Muramatsu R, Matsuki N, Ikegaya Y. GABAergic excitation after febrile seizures induces ectopic granule cells and adult epilepsy. Nature Medicine. 18: 1271-8. PMID 22797810 DOI: 10.1038/Nm.2850  1
2012 Schafer DP, Lehrman EK, Kautzman AG, Koyama R, Mardinly AR, Yamasaki R, Ransohoff RM, Greenberg ME, Barres BA, Stevens B. Microglia sculpt postnatal neural circuits in an activity and complement-dependent manner. Neuron. 74: 691-705. PMID 22632727 DOI: 10.1016/J.Neuron.2012.03.026  1
2012 Koyama R, Matsumoto A, Inahashi Y, Omura S, Takahashi Y. Isolation of actinomycetes from the root of the plant, Ophiopogon japonicus, and proposal of two new species, Actinoallomurus liliacearum sp. nov. and Actinoallomurus vinaceus sp. nov. The Journal of Antibiotics. 65: 335-40. PMID 22511226 DOI: 10.1038/Ja.2012.31  1
2012 Saito K, Koyama R, Abe Y, Nakajima K, Kurashima T. Mechanical splice characteristics of a hole-assisted fiber Journal of Lightwave Technology. 30: 267-272. DOI: 10.1109/JLT.2011.2179009  1
2012 Roberto SR, de Assis AM, Yamamoto LY, Miotto LCV, Sato AJ, Koyama R, Genta W. Application timing and concentration of abscisic acid improve color of 'Benitaka' table grape Scientia Horticulturae. 142: 44-48. DOI: 10.1016/j.scienta.2012.04.028  1
2012 Koyama R, Sanada M, Itoh H, Kanechi M, Inagaki N, Uno Y. In vitro evaluation of tipburn resistance in lettuce (Lactuca sativa. L) Plant Cell, Tissue and Organ Culture. 108: 221-227. DOI: 10.1007/s11240-011-0033-5  1
2012 Watanabe Y, Fujimaki M, Fukunishi N, Hasebe H, Higurashi Y, Ikezawa E, Iniao H, Kageyama T, Kamigaito O, Kase M, Kidera M, Komiyama M, Kuboki H, Kumagai K, Maie T, ... ... Koyama R, et al. Present status of riken ring cyclotron Ipac 2012 - International Particle Accelerator Conference 2012. 433-435.  1
2012 Koyama R, Nakajima K, Kurashima T. Physical contact connection of single-mode fiber with cleaved and unpolished endface National Fiber Optic Engineers Conference, Nfoec 2012 1
2012 Murakami A, Ohashi R, Minakata K, Koyama R, Muraki K, Shukuya T, Namba Y, Ko R, Yagishita S, Katsura Y, Takahashi F, Sakuraba S, Takahashi K. Efficacy of erlotinib after gefitinib administration in patients with non-small cell lung cancer Japanese Journal of Cancer and Chemotherapy. 39: 1357-1361.  1
2012 Bettoni MM, Mógor AF, Pauletti V, da Silva VCP, Koyama R, Peñuela LYF. Agronomic performance of cultivars of organic onion in two harvest times | Desempeño agronómico de cultivares de cebolla orgánica en dos épocas del año Idesia. 30: 11-18.  1
2012 Koyama R, Itoh H, Kimura S, Morioka A, Uno Y. Augmentation of antioxidant Constituents by drought stress to roots in leafy vegetables Horttechnology. 22: 121-125.  1
2012 Da Silva SS, Klosowski AC, Koyama R, Fabri CA, Gomes LL, Zuffellato-Ribas KC. Rooting of jasminum polyanthum cuttings treated with indolebutyric acid | Enraizamento de estacas de Jasminum polyanthum tratadas com ácido indolbutírico Scientia Agraria. 13: 17-20.  1
2011 Nagamachi Y, Yamauchi N, Muramatsu H, Inomata H, Nozawa E, Koyama R, Ihara K, Nishisato T, Yamada H, Yano T, Kikuchi S, Hirako T, Kitaoka K, Ono K, Ihara H, et al. [Systemic amyloidosis associated with IgD-λ multiple myeloma]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 52: 1888-92. PMID 22241157 DOI: JST.JSTAGE/rinketsu/52.1888  1
2011 Sasaki Y, Negishi H, Idogawa M, Yokota I, Koyama R, Kusano M, Suzuki H, Fujita M, Maruyama R, Toyota M, Saito T, Tokino T. p53 negatively regulates the hepatoma growth factor HDGF. Cancer Research. 71: 7038-47. PMID 22006999 DOI: 10.1158/0008-5472.CAN-11-1053  1
2011 Tamura M, Sajo M, Kakita A, Matsuki N, Koyama R. Prenatal stress inhibits neuronal maturation through downregulation of mineralocorticoid receptors. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 31: 11505-14. PMID 21832180 DOI: 10.1523/Jneurosci.3447-10.2011  1
2011 Koyama R, Izumi Y. [Novel approaches to brain diseases by young pharmacologists: from molecular to behavioral analyses for discovering potential drug targets]. Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan. 131: 1-2. PMID 21212606 DOI: 10.1248/Yakushi.131.1  1
2011 Ogawa J, Kodera T, Smirnov SV, Hibi M, Samsonova NN, Koyama R, Yamanaka H, Mano J, Kawashima T, Yokozeki K, Shimizu S. A novel L-isoleucine metabolism in Bacillus thuringiensis generating (2S,3R,4S)-4-hydroxyisoleucine, a potential insulinotropic and anti-obesity amino acid. Applied Microbiology and Biotechnology. 89: 1929-38. PMID 21069315 DOI: 10.1007/s00253-010-2983-7  1
2011 Li X, Lin Z, Koyama R, Wu J, Sun H, Guo Q. Differential activity of phonological and orthographic processing of Japanese word: An fMRI study 2011 Ieee/Icme International Conference On Complex Medical Engineering, Cme 2011. 549-554. DOI: 10.1109/ICCME.2011.5876802  1
2011 Watanabe S, Kubono S, Ohshiro Y, Yamaguchi H, Kase M, Wada M, Koyama R. Simple, high-sensitive, and non-destructive beam monitor for RI beam facilities Nuclear Instruments and Methods in Physics Research, Section a: Accelerators, Spectrometers, Detectors and Associated Equipment. 633: 8-14. DOI: 10.1016/J.Nima.2010.12.036  1
2011 Yoshida K, Koyama R. Reduction of residual stress of drawn wires Conference Proceedings For the 81st Annual Convention of the Wire Association International 1
2011 Koyama R, Kuboki T, Ding WD, Adhikary KB, Chen N, Park CB. Extrusion foaming of cellulose fiber reinforced polylactic acid biocomposites Annual Technical Conference - Antec, Conference Proceedings. 1: 553-557.  1
2011 Ding WD, Kuboki T, Koyama R, Park CB, Sain M. Solid-state foaming of cellulose nanofiber reinforced polylactic acid biocomposites Annual Technical Conference - Antec, Conference Proceedings. 1: 756-761.  1
2010 Shukuya T, Ishiwata T, Hara M, Muraki K, Shibayama R, Koyama R, Takahashi K. Carboplatin plus weekly paclitaxel treatment in non-small cell lung cancer patients with interstitial lung disease. Anticancer Research. 30: 4357-61. PMID 21036764  1
2010 Ichikawa J, Matsuki N, Koyama R. [Influences of febrile seizures on developing neuronal circuits: cellular and molecular approaches using animal models]. Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica. 136: 219-24. PMID 20948158 DOI: JST.JSTAGE/fpj/136.219  1
2010 Aoi W, Naito Y, Takagi T, Kokura S, Mizushima K, Takanami Y, Kawai Y, Tanimura Y, Hung LP, Koyama R, Ichikawa H, Yoshikawa T. Regular exercise reduces colon tumorigenesis associated with suppression of iNOS. Biochemical and Biophysical Research Communications. 399: 14-9. PMID 20633535 DOI: 10.1016/j.bbrc.2010.07.023  1
2010 Koyama R, Matsuki N. Novel etiological and therapeutic strategies for neurodiseases: mechanisms and consequences of febrile seizures: lessons from animal models. Journal of Pharmacological Sciences. 113: 14-22. PMID 20424387 DOI: 10.1254/Jphs.09R19Fm  1
2010 Furuta M, Ekuni D, Yamamoto T, Irie K, Koyama R, Sanbe T, Yamanaka R, Morita M, Kuroki K, Tobe K. Relationship between periodontitis and hepatic abnormalities in young adults. Acta Odontologica Scandinavica. 68: 27-33. PMID 19878045 DOI: 10.3109/00016350903291913  1
2010 Muramatsu R, Nakahara S, Ichikawa J, Watanabe K, Matsuki N, Koyama R. The ratio of 'deleted in colorectal cancer' to 'uncoordinated-5A' netrin-1 receptors on the growth cone regulates mossy fibre directionality. Brain : a Journal of Neurology. 133: 60-75. PMID 19858080 DOI: 10.1093/Brain/Awp266  1
2010 Sakamoto N, Fujimaki M, Goto A, Kamigaito O, Kase M, Koyama R, Suda K, Yamada K, Yokouchi S. Operating experimence with the RF system for the superconducting ring cyclotron of RIKEN RIBF Cyclotrons 2010 - 19th International Conference On Cyclotrons and Their Applications. 338-340.  1
2010 Suda K, Fujimaki M, Fukunishi N, Hemmi M, Kamigaito O, Kase M, Koyama R, Kumagai K, Sakamoto N, Watanabe T, Yamada K. Stable operation of rf systems for RIBF Cyclotrons 2010 - 19th International Conference On Cyclotrons and Their Applications. 186-188.  1
2010 Saito K, Koyama R, Abe Y, Nakajima K, Kurashima T. Optimum mechanical splice conditions for fiber with hole-assisted structure Optics Infobase Conference Papers 1
2010 Rossi MV, Cavagnolli DA, Faria AP, Ferreira SE, Koyama RG, Neto AB, Lucchesi LM, Tufik S, de Mello MT. Acute effect of different types of physical exercise on sleep patterns | Efeito agudo de diferentes tipos de exercício físico no padrão do sono Sleep Science. 3: 63-68.  1
2010 Watanabe T, Fujimaki M, Fukunishi N, Kase M, Komiyama M, Sakamoto N, Watanabe H, Yamada K, Kamigaito O, Koyama R. Beam diagnostics for RIBF in RIKEN Cyclotrons 2010 - 19th International Conference On Cyclotrons and Their Applications. 351-353.  1
2010 Koyama R, Fujimaki M, Fukunishi N, Goto A, Hemmi M, Kase M, Sakamoto N, Suda K, Watanabe T, Yamada K, Kamigaito O. Consistency in measurement of beam phase and intensity using lock-in amplifier and oscilloscope systems Cyclotrons 2010 - 19th International Conference On Cyclotrons and Their Applications. 245-247.  1
2010 Ojiro S, Koyama R, Hikita S, Sato Y, Yoshikado S. Fabrication of thin film by plasma polymerization and application to organic light emitting device Idw'10 - Proceedings of the 17th International Display Workshops. 2: 1179-1182.  1
2009 Kodera T, Smirnov SV, Samsonova NN, Kozlov YI, Koyama R, Hibi M, Ogawa J, Yokozeki K, Shimizu S. A novel l-isoleucine hydroxylating enzyme, l-isoleucine dioxygenase from Bacillus thuringiensis, produces (2S,3R,4S)-4-hydroxyisoleucine. Biochemical and Biophysical Research Communications. 390: 506-10. PMID 19850012 DOI: 10.1016/j.bbrc.2009.09.126  1
2009 Yamanaka R, Akther R, Furuta M, Koyama R, Tomofuji T, Ekuni D, Tamaki N, Azuma T, Yamamoto T, Kishimoto E. Relation of dietary preference to bite force and occlusal contact area in Japanese children. Journal of Oral Rehabilitation. 36: 584-91. PMID 19548957 DOI: 10.1111/j.1365-2842.2009.01971.x  1
2009 Iwakami S, Sato T, Takagi H, Fujii M, Iwakami N, Yoshimi K, Koyama R, Ichikawa M, Yoshioka M, Takahashi K. An autopsy case of subacute cor pulmonale due to pulmonary tumor cell emboli in a patient with gastric cancer. Internal Medicine (Tokyo, Japan). 48: 1057-60. PMID 19525598 DOI: JST.JSTAGE/internalmedicine/48.1858  1
2009 Koyama RG, Drager LF, Lorenzi-Filho G, Cintra FD, Pereira AC, Poyares D, Krieger JE, Castro RM, Tufik S, de Mello MT, Pedrazzoli M. Reciprocal interactions of obstructive sleep apnea and hypertension associated with ACE I/D polymorphism in males. Sleep Medicine. 10: 1107-11. PMID 19482546 DOI: 10.1016/J.Sleep.2008.12.012  1
2009 Yamamoto T, Koyama R, Tamaki N, Maruyama T, Tomofuji T, Ekuni D, Yamanaka R, Azuma T, Morita M. Validity of a questionnaire for periodontitis screening of Japanese employees. Journal of Occupational Health. 51: 137-43. PMID 19202306 DOI: JST.JSTAGE/joh/L8108  1
2009 Tamura M, Tamura N, Ikeda T, Koyama R, Ikegaya Y, Matsuki N, Yamada MK. Influence of brain-derived neurotrophic factor on pathfinding of dentate granule cell axons, the hippocampal mossy fibers. Molecular Brain. 2: 2. PMID 19183490 DOI: 10.1186/1756-6606-2-2  1
2009 Nakahara S, Tamura M, Matsuki N, Koyama R. Neuronal hyperactivity sustains the basal dendrites of immature dentate granule cells: time-lapse confocal analysis using hippocampal slice cultures. Hippocampus. 19: 379-91. PMID 19004014 DOI: 10.1002/Hipo.20529  1
2009 Sasaki Y, Negishi H, Koyama R, Anbo N, Ohori K, Idogawa M, Mita H, Toyota M, Imai K, Shinomura Y, Tokino T. p53 family members regulate the expression of the apolipoprotein D gene. The Journal of Biological Chemistry. 284: 872-83. PMID 19001418 DOI: 10.1074/jbc.M807185200  1
2009 Goto Y, Koyama R, Fujii Y, Obata M. Ultimate state of thin-walled stiffened rectangular steel columns under bi-directional seismic excitations Doboku Gakkai Ronbunshuu A. 65: 61-80. DOI: 10.2208/jsceja.65.61  1
2009 Mutoh A, Nitta S, Koyama R. An analytical study on the relationship between the surface conditions of the rotary slide contacts and the noise waveforms Ieee International Symposium On Electromagnetic Compatibility. 302-307. DOI: 10.1109/ISEMC.2009.5284674  1
2009 Takechi M, Fukuda M, Mihara M, Tanaka K, Chinda T, Matsumasa T, Nishimoto M, Matsumiya R, Nakashima Y, Matsubara H, Matsuta K, Minamisono T, Ohtsubo T, Izumikawa T, Momota S, ... ... Koyama R, et al. Reaction cross sections at intermediate energies and Fermi-motion effect Physical Review C - Nuclear Physics. 79. DOI: 10.1103/Physrevc.79.061601  1
2009 Uno Y, Nakao S, Yamai Y, Koyama R, Kanechi M, Inagaki N. Callus formation, plant regeneration, and transient expression in the halophyte sea aster (Aster tripolium L.) Plant Cell, Tissue and Organ Culture. 98: 303-309. DOI: 10.1007/s11240-009-9564-4  1
2009 Kamigaito O, Ikezawa E, Kase M, Fujimaki M, Fujinawa T, Fukunishi N, Goto A, Haba H, Higurashi Y, Kidera M, Komiyama M, Koyama R, Kuboki H, Kumagai K, Maie T, et al. Present status of riken heavy-ion linac Proceedings of the 24th Linear Accelerator Conference, Linac 2008. 112-114.  1
2009 Koyama R, Ojiro S, Yoshikado S. Deposition of thin film by RF-plasma polymerization using monomer of benzene or its derivative for organic light emitting device Idw '09 - Proceedings of the 16th International Display Workshops. 2: 1093-1096.  1
2009 Kuboki T, Koyama R, Lee JWS, Park CB, Zhang J, Wu Q, Sain M. Extrusion foaming of cellulose fiber reinforced polypropylene composites Aiche Annual Meeting, Conference Proceedings 1
2009 Imamura T, Koizumi Y, Koyama R, Okuda C, Takeuchi K, Matsuda M, Hashimoto M, Watanabe G, Yoshida H, Imawari M. Effectiveness of cytodiagnosis with pancreatic duct lavage fluid for pancreatic ductal carcinoma -new sampling technique Gastroenterological Endoscopy. 51: 84-90.  1
2008 Yamamoto A, Koyama R, Kido K, Koike K, Toba M, Takahashi K. [Case of interstitial pneumonia induced by intravesical administration of Bacillus Calmette-Guerin]. Nihon Kokyå«Ki Gakkai Zasshi = the Journal of the Japanese Respiratory Society. 46: 803-7. PMID 19044030  1
2008 Ekuni D, Yamamoto T, Koyama R, Tsuneishi M, Naito K, Tobe K. Relationship between body mass index and periodontitis in young Japanese adults. Journal of Periodontal Research. 43: 417-21. PMID 18942190 DOI: 10.1111/j.1600-0765.2007.01063.x  1
2008 Koyama R, Imamura T, Okuda C, Sakamoto N, Honjo H, Takeuchi K. Ultrasonographic imaging of bile duct lesions in autoimmune pancreatitis. Pancreas. 37: 259-64. PMID 18815546 DOI: 10.1097/MPA.0b013e31816b30e7  1
2008 Yamauchi N, Muramatsu H, Inomata H, Numata T, Nozawa E, Nishino M, Koyama R, Ihara K, Nishisato T, Hirayama M, Katsuki S, Matsunaga T, Niitsu Y. [Cyclic thrombocytopenia complicated with Sjögren syndrome and the mechanism of periodic platelet count fluctuation]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 49: 658-63. PMID 18800616  1
2008 Ohshima Y, Kubo T, Koyama R, Ueno M, Nakagawa M, Yamashita T. Regulation of axonal elongation and pathfinding from the entorhinal cortex to the dentate gyrus in the hippocampus by the chemokine stromal cell-derived factor 1 alpha. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 28: 8344-53. PMID 18701697 DOI: 10.1523/Jneurosci.1670-08.2008  1
2008 Koyama RG, Castro RM, De Mello MT, Tufik S, Pedrazzoli M. Simple detection of large InDeLS by DHPLC: the ACE gene as a model. Journal of Biomedicine & Biotechnology. 2008: 562183. PMID 18475319 DOI: 10.1155/2008/562183  1
2008 Yamada RX, Sasaki T, Ichikawa J, Koyama R, Matsuki N, Ikegaya Y. Long-range axonal calcium sweep induces axon retraction. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 28: 4613-8. PMID 18448637 DOI: 10.1523/Jneurosci.0019-08.2008  1
2008 Muramatsu R, Ikegaya Y, Matsuki N, Koyama R. Early-life status epilepticus induces ectopic granule cells in adult mice dentate gyrus. Experimental Neurology. 211: 503-10. PMID 18420198 DOI: 10.1016/J.Expneurol.2008.02.026  1
2008 Sasaki Y, Oshima Y, Koyama R, Maruyama R, Akashi H, Mita H, Toyota M, Shinomura Y, Imai K, Tokino T. Identification of flotillin-2, a major protein on lipid rafts, as a novel target of p53 family members. Molecular Cancer Research : McR. 6: 395-406. PMID 18296650 DOI: 10.1158/1541-7786.MCR-07-0108  1
2008 Ozawa A, Fang DQ, Fukuda M, Iwasa N, Izumikawa T, Jeppesen H, Kanungo R, Koyama R, Ohnishi T, Ohtsubo T, Shinozaki W, Suda T, Suzuki T, Takahashi M, Tanihata I, et al. Measurement of the reaction cross section of C18 and observations of fragments from C17 and C18 at 80A MeV Physical Review C - Nuclear Physics. 78. DOI: 10.1103/PhysRevC.78.054313  1
2008 Maruyama H, Koyama R, Oi T, Yagi M, Takeda M, Kanechi M, Inagaki N, Uno Y. In vitro evaluation of osmotic stress tolerance using a novel root recovery assay Plant Cell, Tissue and Organ Culture. 95: 101-106. DOI: 10.1007/s11240-008-9420-y  1
2008 Koyama R, Fukuyori K, Tanaka S, Yoshikado S. Fabrication of thin film by plasma polymerization and application to organic light-emitting devices Idw '08 - Proceedings of the 15th International Display Workshops. 2: 967-970.  1
2008 Takahashi K, Miura K, Koyama R. Quality of life in elderly patients with lung cancer receiving chemotherapy Japanese Journal of Chest Diseases. 67: 486-494.  1
2008 Segi H, Seiyama N, Tako R, Takagi T, Oode S, Imai A, Nishiwaki M, Koyama R. Developing speech synthesis system for stock-price bulletins and trial use in digital terrestrial radio Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers. 62: 69-76.  1
2008 Koyama R, Fujimaki M, Fukunishi N, Hemmi M, Kamigaito O, Kase M, Kotaka Y, Sakamoto N, Suda K, Watanabe T, Yamada K, Yano Y. Beam phase and RF fields monitoring system using lock-in amplifier for RIKEN RIBF Epac 2008 - Contributions to the Proceedings. 1173-1175.  1
2007 Muramatsu R, Ikegaya Y, Matsuki N, Koyama R. Neonatally born granule cells numerically dominate adult mice dentate gyrus. Neuroscience. 148: 593-8. PMID 17706367 DOI: 10.1016/J.Neuroscience.2007.06.040  1
2007 Ichikawa J, Yamada RX, Muramatsu R, Ikegaya Y, Matsuki N, Koyama R. Cryopreservation of granule cells from the postnatal rat hippocampus. Journal of Pharmacological Sciences. 104: 387-91. PMID 17675794 DOI: 10.1254/Jphs.Sc0070162  1
2007 Koyama R, Muramatsu R, Sasaki T, Kimura R, Ueyama C, Tamura M, Tamura N, Ichikawa J, Takahashi N, Usami A, Yamada MK, Matsuki N, Ikegaya Y. A low-cost method for brain slice cultures. Journal of Pharmacological Sciences. 104: 191-4. PMID 17558179 DOI: 10.1254/Jphs.Sc0070119  1
2007 Arase Y, Ikeda K, Suzuki F, Suzuki Y, Saitoh S, Kobayashi M, Akuta N, Someya T, Koyama R, Hosaka T, Sezaki H, Kobayashi M, Kumada H. Long-term outcome after interferon therapy in elderly patients with chronic hepatitis C. Intervirology. 50: 16-23. PMID 17164553 DOI: 10.1159/000096308  1
2007 Koyama R, Kihara M. A novel mode converter using tapered fiber for dual mode transmission Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-Leos. 317-318. DOI: 10.1109/LEOS.2007.4382405  1
2007 Kurogi S, Koyama R, Tanaka S, Sanuki T. Forecasting using first-order difference of time series and bagging of competitive associative nets Ieee International Conference On Neural Networks - Conference Proceedings. 166-171. DOI: 10.1109/IJCNN.2007.4370949  1
2007 Tanaka S, Koyama R, Yoshikado S. Fabrication of thin film from benzene monomer by plasma polymerization and application to organic light emitting device Idw '07 - Proceedings of the 14th International Display Workshops. 2: 1029-1032.  1
2007 Yokoi T, Saito T, Yamaguchi A, Terada T, Koyama R. Development of the java3D-based driving simulator equipped with virtual sound image assistance for safe driving 14th World Congress On Intelligent Transport Systems, Its 2007. 7: 5031-5038.  1
2006 Kusumi E, Kami M, Kanda Y, Murashige N, Seki K, Fujiwara M, Koyama R, Komatsu T, Hori A, Tanaka Y, Yuji K, Matsumura T, Masuoka K, Wake A, Miyakoshi S, et al. Hepatic injury following reduced intensity unrelated cord blood transplantation for adult patients with hematological diseases. Biology of Blood and Marrow Transplantation : Journal of the American Society For Blood and Marrow Transplantation. 12: 1302-9. PMID 17162212 DOI: 10.1016/j.bbmt.2006.07.013  1
2006 Ishiwata T, Koyama R, Homma N, Fujii M, Iwakami N, Nakao Y, Iwakami S, Takahashi K. [Case of Heerfordt's syndrome with prolonged peripheral nerve involvement]. Nihon Kokyå«Ki Gakkai Zasshi = the Journal of the Japanese Respiratory Society. 44: 749-53. PMID 17087344  1
2006 Tamura M, Koyama R, Ikegaya Y, Matsuki N, Yamada MK. K252a, an inhibitor of Trk, disturbs pathfinding of hippocampal mossy fibers. Neuroreport. 17: 481-6. PMID 16543811 DOI: 10.1097/01.Wnr.0000208997.23448.Ea  1
2006 Okamoto H, Umeda S, Obazawa M, Minami M, Noda T, Mizota A, Honda M, Tanaka M, Koyama R, Takagi I, Sakamoto Y, Saito Y, Miyake Y, Iwata T. Complement factor H polymorphisms in Japanese population with age-related macular degeneration. Molecular Vision. 12: 156-8. PMID 16541016  1
2006 Koyama R, Arase Y, Ikeda K, Suzuki F, Suzuki Y, Saitoh S, Kobayashi M, Akuta N, Someya T, Hosaka T, Sezaki H, Kobayashi M, Kumada H. Efficacy of interferon therapy in elderly patients with chronic hepatitis C. Intervirology. 49: 121-6. PMID 16428887 DOI: 10.1159/000089372  1
2006 Koyama R, Takahashi Y, Mori K. Assessing the cuteness of children: Significant factors and gender differences Social Behavior and Personality. 34: 1087-1100. DOI: 10.2224/sbp.2006.34.9.1087  1
2006 Imamura T, Takeshita R, Koyama R, Okuda C, Takeuchi K, Matsuda M, Hashimoto M, Watanabe G, Yoshida H, Imawari M. Effectiveness of cytodiagnosis with pancreatic duct lavage fluid for pancreatic ductal carcinoma: New sampling technique Digestive Endoscopy. 18: 303-307. DOI: 10.1111/j.1443-1661.2006.00661.x  1
2006 Son H, Mine T, Koyama R, Kurashima T, Tomita S, Haibara T. A study on new optical wiring method using optical fiber curl cord for home networks Ieej Transactions On Electronics, Information and Systems. 126: 1205-1211+2.  1
2006 Kurogi S, Tanaka S, Koyama R, Nishida T. Ensemble of competitive associative nets and a method to select an effective number of units Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). 4232: 698-707.  1
2005 Koyama R, Ikegaya Y. To BDNF or not to BDNF: that is the epileptic hippocampus. The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry. 11: 282-7. PMID 16061515 DOI: 10.1177/1073858405278266  1
2005 Koyama R, Nakanishi K, Kato M, Yamashita S, Kuwahara H, Katori H. Hypoglycemia and hyperglycemia due to insulin antibodies against therapeutic human insulin: treatment with double filtration plasmapheresis and prednisolone. The American Journal of the Medical Sciences. 329: 259-64. PMID 15894868 DOI: 10.1097/00000441-200505000-00007  1
2005 Takechi M, Fukuda M, Mihara M, Chinda T, Matsumasa T, Matsubara H, Nakashima Y, Matsuta K, Minamisono T, Koyama R, Shinosaki W, Takahashi M, Takizawa A, Ohtsubo T, Suzuki T, et al. Reaction cross-sections for stable nuclei and nucleon density distribution of proton drip-line nucleus 8B European Physical Journal A. 25: 217-219. DOI: 10.1140/epjad/i2005-06-078-0  1
2005 Kimura K, Izumikawa T, Koyama R, Ohnishi T, Ohtsubo T, Ozawa A, Shinozaki W, Suzuki T, Takahashi M, Tanihata I, Yamaguchi T, Yamaguchi Y. High-rate particle identification of high-energy heavy ions using a tilted electrode gas ionization chamber Nuclear Instruments and Methods in Physics Research, Section a: Accelerators, Spectrometers, Detectors and Associated Equipment. 538: 608-614. DOI: 10.1016/j.nima.2004.08.100  1
2005 Imai A, Takagi T, Kurozumi K, Koyama R, Simazu T. A new internet radio news service using speech rate conversion technology Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers. 59: 265-270.  1
2005 Koyama R, Okayama N, Shimoide K, Kitaoka M, Kitamori T. Microfluidic analysis system for multiple blood chemicals Micro Total Analysis Systems - Proceedings of Microtas 2005 Conference: 9th International Conference On Miniaturized Systems For Chemistry and Life Sciences. 1: 1324-1326.  1
2004 Koyama R, Ikegaya Y. Mossy fiber sprouting as a potential therapeutic target for epilepsy. Current Neurovascular Research. 1: 3-10. PMID 16181061 DOI: 10.2174/1567202043480242  1
2004 Ferreira SE, Hartmann Quadros IM, Trindade AA, Takahashi S, Koyama RG, Souza-Formigoni ML. Can energy drinks reduce the depressor effect of ethanol? An experimental study in mice. Physiology & Behavior. 82: 841-7. PMID 15451648 DOI: 10.1016/J.Physbeh.2004.06.017  1
2004 Koyama R, Yamada MK, Fujisawa S, Katoh-Semba R, Matsuki N, Ikegaya Y. Brain-derived neurotrophic factor induces hyperexcitable reentrant circuits in the dentate gyrus. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 24: 7215-24. PMID 15317847 DOI: 10.1523/Jneurosci.2045-04.2004  1
2004 Kim JA, Koyama R, Yamada RX, Yamada MK, Nishiyama N, Matsuki N, Ikegaya Y. Environmental control of the survival and differentiation of dentate granule neurons. Cerebral Cortex (New York, N.Y. : 1991). 14: 1358-64. PMID 15192012 DOI: 10.1093/Cercor/Bhh096  1
2004 Koyama R, Yamada MK, Nishiyama N, Matsuki N, Ikegaya Y. Developmental switch in axon guidance modes of hippocampal mossy fibers in vitro. Developmental Biology. 267: 29-42. PMID 14975715 DOI: 10.1016/J.Ydbio.2003.11.008  1
2004 Yoshioka Y, Saiki S, Tsutsumi-Ishii Y, Koyama R, Hirashima N, Harada N, Yamasaki S, Suda K, Fukuchi Y. Adult-onset familial pulmonary fibrosis in Japanese brothers. Pathology International. 54: 41-6. PMID 14674994 DOI: 10.1111/j.1440-1827.2004.01583.x  1
2004 Nishijima T, Koyama R, Naito I, Hatakeyama S, Yamasaki H, Oku T. Relationship between knee extension muscle strength and walking ability in the elderly patients Rigakuryoho Kagaku. 19: 95-99. DOI: 10.1589/rika.19.95  1
2004 Scheidenberger C, Attallah F, Beckert K, Beller P, Bosch F, Boutin D, Eickhoff H, Faestermann T, Falch M, Franczak B, Franzke B, Geissel H, Hausmann M, Hellström M, Kaza E, ... ... Koyama R, et al. Study of basic nuclear properties of highly-charged, unstable nuclei at the SIS-FRS-ESR complex Acta Physica Hungarica, Series a: Heavy Ion Physics. 19: 165-170. DOI: 10.1556/Aph.19.2004.1-2.27  1
2004 Yamaguchi Y, Wu C, Suzuki T, Ozawa A, Fang DQ, Fukuda M, Iwasa N, Izumikawa T, Jeppesen H, Kanungo R, Koyama R, Ohnishi T, Ohtsubo T, Shinozaki W, Suda T, et al. Density distribution of17B from a reaction cross-section measurement Physical Review C - Nuclear Physics. 70: 054320-1. DOI: 10.1103/PhysRevC.70.054320  1
2004 Wu C, Yamaguchi Y, Ozawa A, Kanungo R, Tanihata I, Suzuki T, Fang DQ, Suda T, Ohnishi T, Fukuda M, Iwasa N, Ohtsubo T, Izumikawa T, Koyama R, Shinozaki W, et al. Study of the density distribution of 17C from reaction cross section measurement Nuclear Physics A. 739: 3-14. DOI: 10.1016/j.nuclphysa.2004.03.220  1
2003 Pamme N, Koyama R, Manz A. Counting and sizing of particles and particle agglomerates in a microfluidic device using laser light scattering: application to a particle-enhanced immunoassay. Lab On a Chip. 3: 187-92. PMID 15100772 DOI: 10.1039/B300876B  0.01
2003 Koyama R, Homma S, Sakamoto S, Kawabata M, Kishi K, Motoi N, Nakata K. [A suspected case of negative PR 3-ANCA Wegener's granulomatosis associated with marked endobronchial lesion and systemic angitis]. Nihon Kokyå«Ki Gakkai Zasshi = the Journal of the Japanese Respiratory Society. 41: 646-50. PMID 14531300  1
2003 Koyama R, Nakanishi T, Ikeda T, Shimizu A. Catalogue of soluble proteins in human vitreous humor by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis and electrospray ionization mass spectrometry including seven angiogenesis-regulating factors. Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences. 792: 5-21. PMID 12828993 DOI: 10.1016/S1570-0232(03)00133-8  1
2003 Okubo S, Koyama R, Inagaki Y, Ohta H, Tanaka H. High magnetic field ESR study of field induced antiferromagnetic ordering in CsFeBr3 at low temperature Physica B: Condensed Matter. 329: 1069-1070. DOI: 10.1016/S0921-4526(02)02336-0  1
2003 Koyama R, Kurose S, Suzuki S. Ku-band dual conversion receiver 21st International Communications Satellite Systems Conference and Exhibit 1
2002 Tanaka S, Kobayashi T, Nakanishi K, Koyama R, Okubo M, Murase T, Odawara M, Inoko H. Association of HLA-DQ genotype in autoantibody-negative and rapid-onset type 1 diabetes. Diabetes Care. 25: 2302-7. PMID 12453977  1
2002 Nakanishi T, Koyama R, Ikeda T, Shimizu A. Catalogue of soluble proteins in the human vitreous humor: comparison between diabetic retinopathy and macular hole. Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences. 776: 89-100. PMID 12127329 DOI: 10.1016/S1570-0232(02)00078-8  1
2002 Ikegaya Y, Koyama R, Yamada MK, Nishiyama N, Matsuki N. Rapid regrowth of hippocampal mossy fibres and preceding maturation of NMDA receptor-mediated neurotransmission. The European Journal of Neuroscience. 15: 1859-62. PMID 12081666 DOI: 10.1046/J.1460-9568.2002.02035.X  1
2002 Hirayama Y, Koyama R, Nagai T, Matsunaga T, Kogawa lK, Sakamaki S, Kokai Y, Niitsu Y. A pleural effusion caused by fibrous hematopoietic tumor successfully treated with prednisolone in a patient with agnogenic myeloid metaplasia with myelofibrosis. International Journal of Hematology. 75: 305-8. PMID 11999361 DOI: 10.1007/BF02982047  1
2002 Shimizu A, Nakanishi T, Koyama R, Ikeda T. [Proteomics in clinical research: new approach of mass spectrometry]. Rinsho Byori. the Japanese Journal of Clinical Pathology. 50: 169-72. PMID 11925855  1
2002 Jimbo T, Kawasaki Y, Koyama R, Sato R, Takada S, Haraguchi K, Akiyama T. Identification of a link between the tumour suppressor APC and the kinesin superfamily. Nature Cell Biology. 4: 323-7. PMID 11912492 DOI: 10.1038/ncb779  1
2002 Matsunaga T, Fujimi A, Takahira N, Miyajima N, Terui T, Kogawa K, Sakamaki S, Hirayama Y, Nagai T, Koyama R, Niitsu Y. [Mixed warm and cold antibody-type autoimmune hemolytic anemia in a healthy pregnant woman with primary cytomegalovirus infection]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 43: 29-34. PMID 11868362  1
2002 Koyama R, Yamada MK, Nishiyama N, Matsuki N, Ikegaya Y. Group II metabotropic glutamate receptor activation is required for normal hippocampal mossy fibre development in the rat. The Journal of Physiology. 539: 157-62. PMID 11850509 DOI: 10.1113/Jphysiol.2001.013505  1
2002 Hirayama Y, Sakamaki S, Matsunaga T, Kuroda H, Kusakabe T, Akiyama T, Kato J, Kogawa K, Koyama R, Nagai T, Ohta H, Niitsu Y. Granulocyte-colony stimulating factor enhances the expression of transforming growth factor-beta mRNA in CD4-positive peripheral blood lymphocytes in the donors for allogeneic peripheral blood stem cell transplantation. American Journal of Hematology. 69: 138-40. PMID 11835352 DOI: 10.1002/ajh.10027  1
2002 Koyama R, Sato T. Thermodynamic properties of toluene solutions of low molecular weight polystyrenes over wide ranges of concentration Macromolecules. 35: 2235-2242. DOI: 10.1021/ma011540z  1
2002 Mitani M, Ishimoto K, Koyama R. The selective 1,2-addition of ketene silyl acetals to α,β-unsaturated ketones promoted by a copper(I)-phosphine complex Chemistry Letters. 1142-1143.  1
2002 Kataoka H, Koyama R, Furukawa M. Anti-inflammatory and analgesic effects and safety of a novel ibuprofen combined analgesic drug (SMS-113) Japanese Pharmacology and Therapeutics. 30: 377-383.  1
2001 Hirayama Y, Koyama R, Nagai T, Ohta H, Kondo A, Ishikawa K, Ishitani K, Matsunaga T, Sakamaki S, Niitsu Y. Successful treatment of a case of relapsed acute promyelocytic leukemia with arsenic trioxide. Internal Medicine (Tokyo, Japan). 40: 1136-9. PMID 11757771  1
2001 Ohta H, Koyama R, Nagai T, Hirayama Y, Saito S, Yonesaka A. Meningeal carcinomatosis from an ovarian primary with complete response to adjuvant chemotherapy after cranial irradiation. International Journal of Clinical Oncology. 6: 157-62. PMID 11706787  1
2001 Kaito H, Torii A, Fujikawa T, Nakamura T, Koyama R. [A rare case of primary adenoendocrine cell carcinoma of lower bile duct with anomalous creatine kinase isoenzyme and extremely high serum level of neuron specific enolase]. Nihon Naika Gakkai Zasshi. the Journal of the Japanese Society of Internal Medicine. 90: 1525-7. PMID 11573275  1
2001 Nguyen T, Koyama R, Larsson T, Ping K, Tuenge RT. Improved gray-scale monochrome and color AMEL displays using analog pixels Journal of the Society For Information Display. 9: 237-240. DOI: 10.1889/1.1828798  1
2001 Tuenge R, Goodman J, Koyama R, Ping K, Vetanen W. A QVGA AMEL microdisplay with improved color performance Sid Conference Record of the International Display Research Conference. 1071-1074.  1
2001 Ohta H, Koyama R, Hirayama Y, Nagai T, Takayama T, Niitsu Y. A case of intestinal Behçet disease treated with intubation of self-expandable metallic stent Gastroenterological Endoscopy. 43: 1179-1180.  1
2001 Koyama R, Sugiyama T, Okuno T, Shimizu K, Ikeda T. Secondary glaucoma and retinal hemorrhage in a case of rheumatoid arthritis Japanese Journal of Clinical Ophthalmology. 55: 1290-1294.  1
2000 Koyama R, Hirayama Y, Nagai T, Ohta H, Kura T, Mogi Y, Kon S, Sakamaki S, Niitsu Y. A case of diffuse large B-cell lymphoma transformed from immunoglobulin A-producing marginal zone B-cell lymphoma. International Journal of Hematology. 72: 349-52. PMID 11185993  1
2000 Hirayama Y, Nagai T, Ohta H, Koyama R, Matsunaga T, Sakamaki S, Niitsu Y. [Sézary syndrome showing a stable clinical course for more than four years after oral administration of etoposide and methotrexate]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 41: 750-4. PMID 11070938  1
2000 Kataoka H, Horie Y, Koyama R, Nakatsugi S, Furukawa M. Interaction between NSAIDs and steroid in rat stomach: safety of nimesulide as a preferential COX-2 inhibitor in the stomach. Digestive Diseases and Sciences. 45: 1366-75. PMID 10961716  0.01
2000 Matsunaga T, Sakamaki S, Kuga T, Kuroda H, Kusakabe T, Akiyama T, Konuma Y, Hirayama Y, Kobune M, Kato J, Sasaki K, Kogawa K, Koyama R, Niitsu Y. GST-pi gene-transduced hematopoietic progenitor cell transplantation overcomes the bone marrow toxicity of cyclophosphamide in mice. Human Gene Therapy. 11: 1671-81. PMID 10954901 DOI: 10.1089/10430340050111322  1
2000 Kawasaki Y, Senda T, Ishidate T, Koyama R, Morishita T, Iwayama Y, Higuchi O, Akiyama T. Asef, a link between the tumor suppressor APC and G-protein signaling. Science (New York, N.Y.). 289: 1194-7. PMID 10947987  0.04
2000 Muramatsu M, Namiki N, Koyama R, Suga Y. Autonomous mobile robot in pipe for piping operations Ieee International Conference On Intelligent Robots and Systems. 3: 2166-2171.  1
1999 Sakamaki S, Hirayama Y, Matsunaga T, Kuroda H, Kusakabe T, Akiyama T, Konuma Y, Sasaki K, Tsuji N, Okamoto T, Kobune M, Kogawa K, Kato J, Takimoto R, Koyama R, et al. Transforming growth factor-beta1 (TGF-beta1) induces thrombopoietin from bone marrow stromal cells, which stimulates the expression of TGF-beta receptor on megakaryocytes and, in turn, renders them susceptible to suppression by TGF-beta itself with high specificity. Blood. 94: 1961-70. PMID 10477725  1
1999 Koyama R, Kataoka H, Tanaka Y, Nakatsugi S, Furukawa M. Effect of caffeine on ibuprofen-induced gastric mucosal damage in rats. The Journal of Pharmacy and Pharmacology. 51: 817-24. PMID 10467957  0.04
1999 Masuko E, Homma H, Ohta H, Nojiri S, Koyama R, Niitsu Y. Rheologic analysis of gastric mucosal hemodynamics in patients with cirrhosis. Gastrointestinal Endoscopy. 49: 371-9. PMID 10049423  1
1998 Hirayama Y, Sakamaki S, Matsunaga T, Kuga T, Kuroda H, Kusakabe T, Sasaki K, Fujikawa K, Kato J, Kogawa K, Koyama R, Niitsu Y. Concentrations of thrombopoietin in bone marrow in normal subjects and in patients with idiopathic thrombocytopenic purpura, aplastic anemia, and essential thrombocythemia correlate with its mRNA expression of bone marrow stromal cells. Blood. 92: 46-52. PMID 9639498  1
1997 Hirayama Y, Nagai T, Ohta H, Koyama R, Matsunaga T, Sakamaki S, Niitsu Y. [A case of pure red cell aplasia accompanied with granular lymphocytic leukemia the tumor cells of which suppressed colony formation of BFU-E, and which was successfully treated by cyclophosphamide and cyclosporin A]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 38: 1206-11. PMID 9423339  1
1997 Nagai T, Hirayama Y, Ohta H, Koyama R, Matsunaga T, Kuga T, Sakamaki S, Niitsu Y. [Successful high-dose chemotherapy combined with autologous bone marrow transplantation in a case of refractory follicular lymphoma]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 38: 513-9. PMID 9248327  1
1996 Yokota M, Uchibori S, Hayashi H, Koyama R, Kosakai K, Wakabayashi S, Tomiyama T. Azulene derivatives as TXA2/PGH2 receptor antagonists--II. Synthesis and biological activity of 6-mono- and 6-dihydroxylated-isopropylazulenes. Bioorganic & Medicinal Chemistry. 4: 575-91. PMID 8735846  0.01
1995 Koyama R. [Gamma-enolase (gamma-eno)]. Nihon Rinsho. Japanese Journal of Clinical Medicine. 53: 1277-81. PMID 7602791  0.01
1994 Ohta H, Kohgo Y, Takahashi Y, Koyama R, Suzuki H, Niitsu Y. Computer-assisted data processing of images of mucosal and submucosal blood vessels of the stomach obtained by visible and infrared endoscopy using a directional-contrast filter. Gastrointestinal Endoscopy. 40: 621-8. PMID 7988830  1
1994 Koyama R, Nakanishi F, Katoh S. [A case of pulmonary tuberculosis with HIV infection--review of 5 cases in Japan]. Kekkaku : [Tuberculosis]. 69: 693-8. PMID 7837723  0.04
1993 Nagai T, Koyama R, Sasagawa Y, Matsumoto S, Kohgo Y, Niitsu Y, Konn S. [Follicular lymphoma associated with t(14;18)(q32;q21) chromosome translocation and bcl-2 gene rearrangement: report of a case]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 34: 137-42. PMID 8492410  1
1991 Nagai T, Koyama R, Sasagawa Y, Matsumoto S, Niitsu Y, Takayama S, Murakami T, Matsuura A. Diffuse infiltrating T-cell lymphoma of the colon associated with polyclonal hypergammaglobulinemia and hepatocellular carcinoma: report of a case. Japanese Journal of Medicine. 30: 57-63. PMID 1650855  1
1990 Sasagawa Y, Koyama R, Nagai T, Tamura M, Satoh M, Kohgo Y, Niitsu Y. [IBL like T cell lymphoma associated with hemolytic anemia and polyploidy chromosomal abnormality--a case report]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 31: 110-4. PMID 2156094  1
1990 Koyama R, Segawa H, Nagai T, Matsumoto S, Koyanagi T, Matsuura M, Ito K, Sakamaki S, Takago H, Niitsu Y. [A case of primary liver squamous cell carcinoma producing granulocyte colony stimulating factor]. Nihon Naika Gakkai Zasshi. the Journal of the Japanese Society of Internal Medicine. 79: 1732-4. PMID 1706749  1
1989 Nagai T, Koyama R, Sasagawa Y, Nisimura W, Toda K, Adachi H, Takada K, Okii K, Kawanishi J, Nakajima M. [Retroperitoneal lymphangioma: report of a case and a brief review of the literature in Japan]. Nihon Shokakibyo Gakkai Zasshi = the Japanese Journal of Gastro-Enterology. 86: 1159-63. PMID 2677446  1
1988 Koyama R, Nagai T, Sasagawa Y, Matsumoto S, Enomoto K, Yamada T. [A case of multiple myeloma (IgG, k) associated with hypertetraploid chromosomal abnormality]. Gan No Rinsho. Japan Journal of Cancer Clinics. 34: 238-43. PMID 3126334  1
1988 Urushizaki I, Mogi Y, Kohgo Y, Onodera Y, Niitsu Y, Koyama R, Itaya H, Nakazawa O, Saijo N, Matsuda M. [Clinical phase II study of K-18 in cancer of the digestive organs]. Gan to Kagaku Ryoho. Cancer & Chemotherapy. 15: 361-4. PMID 2449136  1
1986 Shirota K, Koyama R, Nomura Y. Glomerulopathy in swine: microscopic lesions and IgG or C3 deposition in 100 pigs. Nihon Juigaku Zasshi. the Japanese Journal of Veterinary Science. 48: 15-22. PMID 3959370  0.01
1986 Shirota K, Koyama R, Une Y, Nomura Y. Immunofluorescence for IgG and C3 in the swine kidney with trypsin-treated paraffin section: the influence of condition of formalin-fixation. Nihon Juigaku Zasshi. the Japanese Journal of Veterinary Science. 48: 851-4. PMID 3531656  0.01
1985 Urushizaki I, Kogo Y, Kouda K, Ishitani K, Niitsu Y, Matsuda M, Gocho Y, Koyama R, Nagai T, Saijo N. [Clinical phase II study of 5'-DFUR for cancer of the digestive organs by a cooperative study group]. Gan to Kagaku Ryoho. Cancer & Chemotherapy. 12: 2358-64. PMID 3000300  1
1983 Narita M, Noda S, Seki C, Koyama R, Kifune M. [Reevaluation of the observation of the normal puerperal course]. Josanpu Zasshi = the Japanese Journal For Midwife. 37: 802-7. PMID 6559872  0.04
1982 Toriumi F, Sawahata R, Ota T, Koyama R, Numazawa T. [Nursing process: nursing of patients with hyperthyroidism. Evaluation of the nursing process: a discussion]. Kurinikaru Sutadä« = Clinical Study. 3: 929-38. PMID 6923119  0.08
1982 Ota T, Toriumi F, Koyama R, Numazawa T, Inomata A. [Nursing process: nursing of patients with hyperthyroidism. Nursing of a patient with hyperthyroidism: a case study]. Kurinikaru Sutadä« = Clinical Study. 3: 919-28. PMID 6923118  1
1982 Toriumi F, Ota T, Koyama R, Numazawa T, Inomata A. [Nursing process: nursing of patients with hyperthyroidism. Nursing process of patients with hyperthyroidism]. Kurinikaru Sutadä« = Clinical Study. 3: 913-8. PMID 6923117  1
1981 Yamazaki H, Ohishi Y, Kido A, Yanagisawa M, Tashiro K, Higashi Y, Machida T, Kobayashi T, Koyama R, Okamoto T. [Retroperitoneal abscess with secondary pleural effusion: report of two cases (author's transl)]. Nihon HinyåKika Gakkai Zasshi. the Japanese Journal of Urology. 72: 758-66. PMID 7289322  0.08
1981 Kamata K, Okubo M, Marumo F, Nango H, Higashishiba H, Kanayama K, Koyama R. [Water soluble vitamins in patients with chronic renal failure and effect of B6 administration on immunological activity (author's transl)]. Nihon Jinzo Gakkai Shi. 23: 145-51. PMID 7253316  0.01
1981 Koyama R. [Nursing process/nursing of patients with muscular dystrophy. Nursing of patients with Duchenne type muscular dystrophy]. Kurinikaru Sutadä« = Clinical Study. 2: 1043-9. PMID 6915320  0.01
1979 Koyama RY, Buehler MG. Novel variable-temperature chuck for use in the detection of deep levels in processed semiconductor wafers. The Review of Scientific Instruments. 50: 983-7. PMID 18699649 DOI: 10.1063/1.1135983  1
1979 Koyama R, Ishikawa K, Koseki J, Nakano Y, Goto M. [A case of acute promyelocytic leukemia which showed peculiar histocytochemical findings in leukemic cells (author's transl)]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 20: 987-93. PMID 291742  1
1977 Sato N, Yoshida N, Nagai T, Koyama R, Gocho Y. [A case of B cell type non-Hodgkin's lymphoma with hypercalcemia and characteristic pathological findings (author's transl)]. Nihon Naika Gakkai Zasshi. the Journal of the Japanese Society of Internal Medicine. 66: 428-35. PMID 302293  1
1977 Urushizaki I, Ishitani K, Nagai T, Gocho Y, Koyama R. Immunosuppressive factors in serum of patients with gastric carcinoma. Gan. 68: 413-21. PMID 80341  1
1975 Koyama R, Itaya H, Nakazawa O, Kondo A. [A case of chronic lymphosarcoma cell leukemia of B cell type (author's transl)]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 16: 1064-71. PMID 1082518  1
1975 Ishii Y, Suzuki T, Koshiba H, Koyama R, Itaya H. [B-lymphocytic leukemia--chronic lymphosarcoma cell leukemia--study of a case]. [Hokkaido Igaku Zasshi] the Hokkaido Journal of Medical Science. 50: 92-3. PMID 1080126  1
1975 Koyama R, Iwaki T, Nagata E, Hoshida K, Matsumoto K. [Method of instruction in case studies and its evaluation in junior nursing schools]. [Kango KyåIku] Japanese Journal of Nurses' Education. 16: 602-10. PMID 1042331  0.04
1975 Nakazawa O, Niitsu Y, Katayama S, Koyama R, Gocho Y. [Two cases of IgD (K-type) myeloma--with special reference to urine protein analyses (author's transl)]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 16: 963-71. PMID 813021  1
1974 Urushizaki I, Koyama R, Ishikawa K, Ishitani K. [Disseminated intravascular coagulation in association with carcinomas (author's transl)]. [Rinshå Ketsueki] the Japanese Journal of Clinical Hematology. 15: 153-64. PMID 4858658  1
1974 Mihara T, Koyama R, Hoshida K, Yugoshi Y. [Laboratory training of nursing physiology]. [Kango KyåIku] Japanese Journal of Nurses' Education. 15: 594-8. PMID 4498062  0.01
1974 Koyama R. [Nursing study at the high school nursing courses. Teaching methods in history of nursing and their evaluation]. [Kango KyåIku] Japanese Journal of Nurses' Education. 15: 520-5. PMID 4498051  0.01
1973 Tadamasa T, Kondo J, Koyama R, Yugoshi Y, Yamaji A. [Nursing specialist education for high school graduates with the degree of assistant nursing]. [Kango KyåIku] Japanese Journal of Nurses' Education. 14: 524-9. PMID 4490131  0.01
1971 Abe Y, Ishkawa K, Nishiie K, Niitsu Y, Koyama R. [An autopsy case of juvenile gastric carcinoma accompanied by microangiopathic hemolytic anemia and marked cryofibrinogenemia]. Nihon Naika Gakkai Zasshi. the Journal of the Japanese Society of Internal Medicine. 60: 1208-13. PMID 5168294  1
1970 Sasaki T, Koyama R, Nishiie K, Yamamoto A, Gocho Y. [Case of acute myeloblastic leukemia with Philadelphia chromosome]. Saishin Igaku. Modern Medicine. 25: 187-92. PMID 5271127  1
1969 Gocho Y, Koyama R, Ikeda S, Fukuda M. [3 cases of esophageal hiatus hernia]. Rinsho Hoshasen. Clinical Radiography. 14: 73-7. PMID 5192444  1
1968 Urushizaki I, Koyama R, Sasaki T, Fuse Y. [Autopsy case of acute premyelocytic leukemia]. Saishin Igaku. Modern Medicine. 23: 189-95. PMID 5245172  1
1968 Fujimoto T, Sakamoto S, Fukuda M, Koyama R, Sasaki T. [An autopsy case of malignant hemangioendotheliomatosis of the bone marrow accompanied by hypergammaglobulinemia]. Sapporo Igaku Zasshi. the Sapporo Medical Journal. 33: 38-52. PMID 4177641  1
1967 Koyama R, Yamaguchi Y, Hayatsu S, Yasuda T. [Round table conference with Dr. Ryoshu Koyama]. Horumon to Rinshå. Clinical Endocrinology. 15: 684-93. PMID 4873999  0.04
1966 Oba T, Koyama R. [Application of infrared absorption spectroscopy to examination of drugs and their preparations. XVII. Studies on polymorphism of J.P. pharmaceuticals. (3)]. Eisei Shikenjo HåKoku. Bulletin of National Institute of Hygienic Sciences. 84: 4-7. PMID 6008594  0.01
1966 Oba T, Koyama R. [Application of infrared absorption spectroscopy to examination of drugs and their preparations. XVI. Studies on polymorphism of J.P. pharmaceuticals. (2)]. Eisei Shikenjo HåKoku. Bulletin of National Institute of Hygienic Sciences. 84: 1-4. PMID 6008586  0.01
1965 Fujii T, Imai M, Morohashi C, Wakahara E, Watanabe M, Koyama R. Sex and age differences in the effects of barbiturates. Japanese Journal of Pharmacology. 15: 157-64. PMID 5294551  1
1964 OBA T, TADA Y, KOYAMA R. [APPLICATION OF INFRARED ABSORPTION SPECTROSCOPY TO EXAMINATION OF DRUGS AND THEIR PREPARATIONS. XV. STUDIES ON POLYMORPHISM OF MEDICINES INCLUDED IN J.P]. Eisei Shikenjo HåKoku. Bulletin of National Institute of Hygienic Sciences. 82: 33-7. PMID 14343181  0.01
1962 KOYAMA R. A simple method of hypophysectomy in rats (Koyama's external auditory canal method). Endocrinologia Japonica. 9: 321-3. PMID 14035271  0.01
1962 FUJII T, KOYAMA R. Sex difference of rat growth after adminoistration of testosterone propionate. Endocrinologia Japonica. 9: 161-70. PMID 13960090  0.01
1962 FUJII T, MORITA Y, KOYAMA R. Effects of some anabolic steroids on the growth in male and female rats. Endocrinologia Japonica. 9: 93-102. PMID 13895706  0.01
1962 FUJII T, KOYAMA R. Nucleic acid contents of various organs in rats during postnatal growth. Endocrinologia Japonica. 9: 66-73. PMID 13895704  0.04
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