Research field (2)：
Metabolism and endocrinology
, Urology
Research keywords (2)：
泌尿器科学
, Sexual Dysfunction
Research theme for competitive and other funds (2)：
性機能障害
Sexual Dysfunction
Papers (49)：
Azusa Yoshiyama, Akira Tsujimura, Ippei Hiramatsu, Junki Morino, Yuta Anno, Makoto Kurosawa, Akimasa Kure, Yuka Uesaka, Taiji Nozaki, Masato Shirai, et al. Circadian Rhythm of Voided Volume, Maximum Flow Rate, and Voiding Time Evaluated by Toilet Uroflowmetry in Hospitalized Women With Nocturia. Urology. 2023
Masato Shirai, Keisuke Ishikawa, Ippei Hiramatsu, Kazuhiko Mizushima, Takamitsu Tsuru, Makoto Kurosawa, Akimasa Kure, Yuka Uesaka, Taiji Nozaki, Akira Tsujimura. The Men’s Training Cup Keep Training: a masturbation aid improves intravaginal ejaculatory latency time and Erection Hardness Score in patients who are unable to delay ejaculation. Sexual Medicine. 2023. 11. 1
Miho Miyoshi, Akira Tsujimura, Yuto Miyoshi, Yuka Uesaka, Taiji Nozaki, Masato Shirai, Hiroshi Kiuchi, Kazuhiro Kobayashi, Shigeo Horie. Low serum zinc concentration is associated with low serum testosterone but not erectile function. International Journal of Urology. 2023. 30. 4. 395-400
Shinichiro Fukuhara, Masato Shirai, Norichika Ueda, Kentaro Takezawa, Keisuke Ishikawa, Ippei Hiramatsu, Yuka Uesaka, Taiji Nozaki, Atsushi Iwasa, Kazuhiro Kobayashi, et al. Therapeutic efficacy and safety of a free-standing motorized ejaculation aid for patients with intravaginal ejaculatory dysfunction. Reproductive medicine and biology. 2023. 22. 1. e12530
Takamitsu Tsuru, Akira Tsujimura, Kazuhiko Mizushima, Makoto Kurosawa, Akimasa Kure, Yuka Uesaka, Taiji Nozaki, Masato Shirai, Kazuhiro Kobayashi, Shigeo Horie. International Prostate Symptom Score and Quality of Life Index for Lower Urinary Tract Symptoms Are Associated with Aging Males Symptoms Rating Scale for Late-Onset Hypogonadism Symptoms. The World Journal of Men's Health. 2023
2004/11 - 2007/03 Juntendo University School of Medicine
2001/07 - 2003/06 University of California, San Francisco Department of Urology Research Scholar
Committee career (1)：
日本性機能学会 理事、世話人、専門医制度委員会委員長、教育委員会委員長(卒前)
Awards (1)：
2019/09 - Japanese Society for Sexual Medicine Shirai Award Oral L-citrulline and Transresveratrol Supplementation Improves Erectile Function in Men With Phosphodiesterase 5 Inhibitors: A Randomized, Double-Blind, Placebo-Controlled Crossover Pilot Study
