PMID- 25131461 OWN - NLM STAT- MEDLINE DCOM- 20150908 LR - 20181202 IS - 1671-167X (Print) IS - 1671-167X (Linking) VI - 46 IP - 4 DP - 2014 Aug 18 TI - [Expression of brainderived neurotrophic factor in urine of patients with benign prostatic hyperplasia complicated overactive bladder symptoms]. PG - 519-23 AB - OBJECTIVE: To investigate the expression of urinary brainderived neurotrophic factor (BDNF) in benign prostatic hyperplasia patients with overactive bladder (OAB) symptoms and its correlation with the severity of OAB symptoms. METHODS: According to the inclusion and exclusion criteria, a total of 178 patients with benign prostatic hyperplasia who were to undergo transurethral resection of prostate (TURP) were enrolled in this study. All the patients had accepted basic preoperative evaluations, as well as an assessment of their International Prostate Symptom Score (IPSS) and Overactive Bladder Symptom Score (OABSS). The patients who had been scheduled for surgery had to take the urodynamic assessment. Urinary BDNF levels were measured by the enzyme-linked immunosorbent assay (ELISA) and the results were further normalized to the concentration of urinary creatinine (BDNF/Cr, mg/mol). RESULTS: The urinary BDNF/Cr levels of the patients with moderate and severe lower urinary tract symptoms were (1.189 +/- 0.753) mg/mol and (1.817 +/- 1.110) mg/mol (P < 0.001). The urinary BDNF/Cr levels of the patients with grades III-VI obstruction were (1.382 +/- 0.945) mg/mol, (1.435 +/- 0.938) mg/mol, (1.640 +/- 1.104) mg/mol, and (1.653 +/- 1.019) mg/mol, respectively (P > 0.05). There was no correlation between the urinary BDNF/Cr levels and the severity of obstruction (r = 0.103, P = 0.173). The urinary BDNF/Cr levels in the patients with and without OAB symptoms were (1.913 +/- 0.843) mg/mol and (0.297 +/- 0.183) mg/mol (P < 0.001). The urinary BDNF/Cr levels in the patients with mild, moderate and severe OAB symptoms were (1.501 +/- 0.543) mg/mol, (1.806 +/- 0.703) mg/mol and (2.560 +/- 0.979) mg/mol, respectively (P < 0.05). There was a correlation between the urinary BDNF/Cr levels and the severity of OAB symptoms (r = 0.743, P < 0.001). The urinary BDNF/Cr levels in the patients with urodynamic detrusor overativity were significantly higher than those without detrusor overativity [(1.917 +/- 0.866) mg/mol and (1.194 +/- 1.013) mg/mol, P < 0.001]. CONCLUSION: There is no correlation between urinary BDNF and severity of obstruction in benign prostatic hyperplasia patients with moderate and severe lower urinary tract symptoms. The urinary BDNF levels in patients with OAB symptoms are elevated compared with patients without OAB symptoms, and are correlated with the severity of OAB symptoms. FAU - Hu, Hao AU - Hu H AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Xu, Ke-xin AU - Xu KX AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Zhang, Xiao-peng AU - Zhang XP AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Fang, Zhi-wei AU - Fang ZW AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Chen, Jing-wen AU - Chen JW AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Huo, Fei AU - Huo F AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Wang, Dong AU - Wang D AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. FAU - Wang, Xiao-feng AU - Wang XF AD - Department of Urology, Peking University People's Hospital, Beijing 100044, China. LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Beijing Da Xue Xue Bao Yi Xue Ban JT - Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences JID - 101125284 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) RN - AYI8EX34EU (Creatinine) SB - IM MH - Brain-Derived Neurotrophic Factor/*urine MH - Creatinine/urine MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Lower Urinary Tract Symptoms/*metabolism MH - Male MH - Prostatic Hyperplasia/*metabolism MH - Urinary Bladder, Overactive/*metabolism MH - Urodynamics EDAT- 2014/08/19 06:00 MHDA- 2015/09/09 06:00 CRDT- 2014/08/19 06:00 PHST- 2014/08/19 06:00 [entrez] PHST- 2014/08/19 06:00 [pubmed] PHST- 2015/09/09 06:00 [medline] PST - ppublish SO - Beijing Da Xue Xue Bao Yi Xue Ban. 2014 Aug 18;46(4):519-23.