Author

Ryo Oikawa

Observed names: R OIKAWA, R. Oikawa, R., Oikawa

Observed institutions: Sapporo Medical University, Baker Heart and Diabetes Institute, Tokyo University of Pharmacy and Life Sciences, National Center for Global Health and Medicine, Showa General Hospital, Tottori University, The University of Tokyo

ORCID: 0000-0003-0756-2164

Observed ORCID: 0000-0003-0756-2164

OpenAlex ID: A5016887328

V1a vasopressin receptors maintain normal blood pressure by regulating circulating blood volume and baroreflex sensitivity

2006 · Taka-aki Koshimizu, Yoshihisa Nasa, et al. · Proceedings of the National Academy of Sciences · 182

Preferable Anesthetic Conditions for Echocardiographic Determination of Murine Cardiac Function

2005 · Yuji Kawahara, Kouichi Tanonaka, et al. · Journal of Pharmacological Sciences · 104

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Prostatic ischemia induces ventral prostatic hyperplasia in the SHR; possible mechanism of development of BPH

2014 · Motoaki Saito, Panagiota Tsounapi, et al. · Scientific Reports · 72

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Vasopressin promotes cardiomyocyte hypertrophy via the vasopressin V1A receptor in neonatal mice

2006 · Masami Hiroyama, Shuyi Wang, et al. · European Journal of Pharmacology · 61

Decrease in sarcoglycans and dystrophin in failing heart following acute myocardial infarction

2003 · H YOSHIDA, M TAKAHASHI, et al. · Cardiovascular Research · 54

Two α1-Adrenergic Receptor Subtypes Regulating the Vasopressor Response Have Differential Roles in Blood Pressure Regulation

2004 · Chihiro Hosoda, Taka-aki Koshimizu, et al. · Molecular Pharmacology · 44

Possible Involvement of Calpain Activation in Pathogenesis of Chronic Heart Failure After Acute Myocardial Infarction

2006 · Masaya Takahashi, Kouichi Tanonaka, et al. · Journal of Cardiovascular Pharmacology · 36

Detailed anatomy and procedure of celiac artery decompression in median arcuate ligament syndrome

2021 · Kyoji Ito, Nobuyuki Takemura, et al. · Langenbeck s Archives of Surgery · 34

Effects of ACE inhibitor and AT blocker on dystrophin-related proteins and calpain in failing heart

2004 · M TAKAHASHI, K TANONAKA, et al. · Cardiovascular Research · 26

Prostatic ischemia induces ventral prostatic hyperplasia in the SHR

2013 · Motoaki Saito, Panagiota Tsounapi, et al. · Neurourology and Urodynamics · 25

Vasopressin V1A receptor enhances baroreflex via the central component of the reflex arc

2006 · Ryo Oikawa, Yoshihisa Nasa, et al. · European Journal of Pharmacology · 25

Characterization of silodosin and naftopidil in the treatment of bladder dysfunction in the spontaneously hypertensive rat

2012 · Motoaki Saito, Shogo Shimizu, et al. · Neurourology and Urodynamics · 22

Blocking of the ATP sensitive potassium channel ameliorates the ischaemia‐reperfusion injury in the rat testis

2014 · S. Shimizu, R. Oikawa, et al. · Andrology · 21

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Olmesartan ameliorates urinary dysfunction in the spontaneously hypertensive rat via recovering bladder blood flow and decreasing oxidative stress

2013 · Shogo Shimizu, Motoaki Saito, et al. · Neurourology and Urodynamics · 20

Decreased susceptibility to salt-induced hypertension in subtotally nephrectomized mice lacking the vasopressin V1a receptor

2010 · R. Oikawa, C. Hosoda, et al. · Cardiovascular Research · 15

Bowel perfusion demonstrated using indocyanine green fluorescence imaging in two cases of strangulated ileus

2022 · Kyoko Nohara, Nobuyuki Takemura, et al. · Clinical Journal of Gastroenterology · 9

Effects of angiotensin I-converting enzyme inhibitor and angiotensin II type 1 receptor blocker on the right ventricular sarcoglycans and dystrophin after left coronary artery ligation

2005 · Masaya Takahashi, Kouichi Tanonaka, et al. · European Journal of Pharmacology · 8

Induction of heat shock protein 72 in the failing heart is attenuated after an exposure to heat shock

2004 · Kouichi Tanonaka, Wakako Toga, et al. · Molecular and Cellular Biochemistry · 7

Arterial communication around the pancreatic tail enabled division of the gastroduodenal artery during pancreaticoduodenectomy in patient with complete celiac artery occlusion: a case report

2020 · Ryo Oikawa, Kyoji Ito, et al. · Surgical Case Reports · 6

Reappraisal of Real‐World Management of Acute Cholecystitis in Elderly Patients Based on the Adherence to Tokyo Guidelines 2018 ( TG18 ): A Multicenter Study on Anzu HPB Surgical Meeting

2026 · Yuta Kobayashi, Shojiro Hata, et al. · Annals of Gastroenterological Surgery · 2

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How to do it: rescue duct-to-duct biliary reconstruction techniques to avoid severe biliary complications of hepatic resection for hepatocellular carcinoma

2023 · Ryo Oikawa, Kyoji Ito, et al. · Surgery Today · 1

Using Indocyanine Green Fluorescence Imaging to Identify an Anomalous Cystohepatic Duct During Laparoscopic Cholecystectomy

2023 · Ryo Oikawa, Kyoji Ito, et al. · The American Surgeon · 1

Automatic and Real‐Time Surgeon's Gazing Point Detection From Surgical Videos Using Machine Learning and Mathematical Algorithm

2025 · Shu Sasaki, Kenji Karako, et al. · Journal of Hepato-Biliary-Pancreatic Sciences

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Simplified technique in total pancreatectomy with islet cell autotransplantation after Frey’s procedure: a case report