Äkïhïko Okuyama

Sakai Municipal Hospital — Japan

Medicine · Health Sciences

56h-index11.9kcitations656works0.02yr avg
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Research Topics

Sperm and Testicular Function(114), Renal Transplantation Outcomes and Treatments(58), Sexual Differentiation and Disorders(58), Hormonal and reproductive studies(55), Testicular diseases and treatments(50)

Publications656 total

The number of dissected lymph nodes contributes to good prognosis after robot-assisted radical cystectomy for muscle-invasive bladder cancer without lymph node metastasis at clinical staging
2026Open Access
Add-on anticholinergic therapy for residual nocturia in patients with lower urinary tract symptoms receiving α1-blocker treatment: a multi-centre, prospective, randomised study
World Journal of Urology·2014· 19 citedOpen Access
Diversity in Protein Profiles of Individual Calcium Oxalate Kidney Stones
PLoS ONE·2013· 61 citedOpen Access
Semen quality of 1559 young men from four cities in Japan: a cross-sectional population-based study
BMJ Open·2013· 50 citedOpen Access
Semen quality of fertile Japanese men: a cross-sectional population-based study of 792 men
BMJ Open·2013· 43 citedOpen Access
Genetic polymorphisms of CYP17A1 in steroidogenesis pathway are associated with risk of progression to castration-resistant prostate cancer in Japanese men receiving androgen deprivation therapy
International Journal of Clinical Oncology·2012· 21 cited
1251 PROSPECTIVE RANDOMIZED TRIAL OF ALPHA-BLOCKER COMBINED WITH IMIDAFENACIN IN THE TREATMENT OF NOCTURIA IN PATIENTS WITH BENIGN PROSTATIC HYPERPLASIA AND CONCOMITANT OVERACTIVE BLADDER SYNDROME: RESULTS OF GOOD-NIGHT STUDY
The Journal of Urology·2012· 2 cited
Carbamylated Erythropoietin Ameliorates Cyclosporine Nephropathy without Stimulating Erythropoiesis
Cell Transplantation·2012· 19 citedOpen Access
745 Randomized controlled trial of nocturia in patients with benign prostatic hyperplasia with overactive bladder using an alpha-blocker combined with a novel antichorinergic, imidafenacin; GOOD-NIGHT Study
European Urology Supplements·2012· 4 cited
[A case report of retrocaval ureter associated with right ureteral tumors].
PubMed·2011· 2 cited
[Two cases of bladder cancer with hereditary nonpolyposis colorectal cancer].
PubMed·2011· 2 cited
Morphologic and mitochondrial characterization of human spermatogenic cells dispersed in wet preparation for testicular sperm extraction: establishment of a microscopic diagram of developing human spermatogenic cells
Fertility and Sterility·2011· 12 cited
2289 GENETIC POLYMORPHISMS OF <i>CYP17A1</i> MAY PREDICT EARLY PROGRESSION AFTER PRIMARY ANDROGEN DEPRIVATION THERAPY IN JAPANESE MEN WITH PROSTATE CANCER
The Journal of Urology·2011
10 Brain control in sexual function and voiding
Journal of Men s Health·2011
54 LUTS, ED and depression among Japanese patients with late-onset hypogonadism symptoms
Journal of Men s Health·2011
2291 PREDICTION OF FUTURE CASTRATION RESISTANT PROSTATE CANCER BY PRE-TREATMENT PROSTATE TISSUE ANDROGEN CONTENT
The Journal of Urology·2011
Why does atorvastatin inhibit renal crystal retention?
Urological Research·2011· 28 cited
Effect of sex hormones on crystal formation in a stone-forming rat model.
PubMed·2011· 1 cited
535 PREDICTION OF HORMONE-REFRACTORY PROSTATE CANCER ON THE BASIS OF THE PRETREATMENT ANDROGEN CONTENT IN PROSTATE NEEDLE BIOPSY SPECIMEN
European Urology Supplements·2011
Vardenafil and Resveratrol Synergistically Enhance the Nitric Oxide/Cyclic Guanosine Monophosphate Pathway in Corpus Cavernosal Smooth Muscle Cells and its Therapeutic Potential for Erectile Dysfunction in the Streptozotocin-Induced Diabetic Rat: Preliminary Findings
The Journal of Sexual Medicine·2011· 45 cited
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Frequent Co-authors

Norio Nonomura(21), Akira Tsujimura(16), Kiyomi Matsumiya(15), Yasushi Miyagawa(11), Masami Takeyama(9), Hideki Fujioka(8), Tetsuya Takao(8), Minoru Koga(8), Tsuneharu Miki(7), Kazuo Nishimura(7), Shiro Takahara(6), Katsuyuki Aozasa(5), Naotsugu Ichimaru(4), Masaya Kitamura(4), K Matsumiya(3), Haruhito Azuma(3), Mikio Namiki(3), Hiromitsu Tanaka(3), Yoshitake Nishimune(3), Masaru Okabe(3)