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学科主题: 临床医学
题名:
AGE-Breaker ALT-711 Plus Insulin Could Restore Erectile Function in Streptozocin-Induced Type 1 Diabetic Rats
作者: Wang, Lin1; Tian, Wenjie2; Uwais, Zaid3; Li, Guangyong4; Li, Huixi1; Guan, Ruili1; Gao, Zhezhu1; Xin, Zhongcheng1
关键词: Diabetes Mellitus ; Erectile Dysfunction ; Oxidative Stress ; Metabolic Memory
刊名: JOURNAL OF SEXUAL MEDICINE
发表日期: 2014-06-01
DOI: 10.1111/jsm.12533
卷: 11, 期:6, 页:1452-1462
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Urology & Nephrology
研究领域[WOS]: Urology & Nephrology
关键词[WOS]: GLYCATION END-PRODUCTS ; ANTIOXIDANT THERAPY ; OXIDATIVE STRESS ; GLYCEMIC CONTROL ; GLUCOSE CONTROL ; DYSFUNCTION ; COMPLICATIONS ; HEMODIALYSIS ; MELLITUS ; RECEPTOR
英文摘要:

Introduction The interaction between advanced glycation end-products (AGEs) and its receptors for AGEs (RAGEs) elicits oxidative stress and mediates the development of erectile dysfunction (ED). ALT-711, an AGE cross-link breaker, has the therapeutic potential for ED but has been less intensively investigated. Aim The aim of this study was to investigate the effects of an AGEs breaker 3-phenacyl-4,5-dimethylthiazolium chloride (ALT-711) plus insulin on erectile function in streptozocin (STZ)-induced type 1 diabetic rats. Methods Fifty 8-week-old Sprague-Dawley rats were randomly distributed into five groups: normal control (C), diabetic (D), insulin-treated diabetic (D+I), ALT-711-treated diabetic (D+ALT-711) and insulin plus ALT-711-treated diabetic (D+I+ALT-711) rats. Diabetes was induced by a single intraperitoneal injection of STZ. Eight weeks after induction of diabetes, ALT-711 was administered by intraperitoneal injection. Two to six units of intermediate-acting insulin were utilized to achieve normal levels of glycemic control. After treatment for 6 weeks, erectile function was determined via measurement of intracavernous pressures (ICPs) following electrostimulation of the cavernous nerve. The deposition of AGEs, expression of RAGEs, superoxide dismutase activity, and lipid peroxidation were measured. We also evaluated penile histological changes such as smooth muscle contents, endothelial cells contents, and apoptotic activity. Main Outcome Measures The main outcome measures were the ratio of ICP/mean arterial pressure (MAP), penile endothelial cells, smooth muscle cells, neuronal nitric oxide synthase, AGE and RAGE expression, malondialdehyde concentration, SOD activity, and apoptosis index. Results Diabetic rats demonstrated significantly reduced ICP/MAP ratio, penile endothelial cells, smooth muscles cells, increased AGEs and RAGE expression, and increased apoptosis. Insulin and ALT-711 monotherapy partially restored erectile function and histological changes. However, the combination therapy group showed erectile parameters and components similar to those in C. ALT-711-treated group demonstrated less deposition of AGEs and lower expression of RAGE than those in insulin-treated group. Conclusion These results suggest that although insulin can effectively control glycemic levels, it does not completely alter the pathological changes in erectile tissues. Better efficacy could be expected with tight glycemic control plus ALT-711, an AGEs cross-link breaker. The combination therapy might have the potential to eliminate metabolic memory by down-regulating the AGEs-RAGE oxidative stress axis. Wang L, Tian W, Uwais Z, Li G, Li H, Guan R, Gao Z, and Xin Z. AGE-breaker ALT-711 plus insulin could restore erectile function in streptozocin-induced type 1 diabetic rats. J Sex Med 2014;11:1452-1462.

语种: 英语
WOS记录号: WOS:000337563800009
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/54312
Appears in Collections:北京大学第一临床医学院_男科中心_期刊论文

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作者单位: 1.Peking Univ, Hosp 1, Androl Ctr, Beijing 100871, Peoples R China
2.Jilin Univ, China Japan Union Hosp, Dept Urol, Changchun 130023, Peoples R China
3.Univ Calif San Francisco, Sch Med, Dept Urol, San Francisco, CA 94143 USA
4.Ningxia Med Univ, Dept Urol, Gen Hosp, Yinchuan, Peoples R China

Recommended Citation:
Wang, Lin,Tian, Wenjie,Uwais, Zaid,et al. AGE-Breaker ALT-711 Plus Insulin Could Restore Erectile Function in Streptozocin-Induced Type 1 Diabetic Rats[J]. JOURNAL OF SEXUAL MEDICINE,2014,11(6):1452-1462.
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