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He W, Liu J, Liu D, Hu J, Jiang Y, Li M, Wang Q, Chen P, Zeng G, Xu D, Wang X, DiSanto ME, Zhang X. Alterations in the phosphodiesterase type 5 pathway and oxidative stress correlate with erectile function in spontaneously hypertensive rats. J Cell Mol Med 2020; 24:14280-14292. [PMID: 33118708 PMCID: PMC7754015 DOI: 10.1111/jcmm.16045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 09/16/2020] [Accepted: 10/11/2020] [Indexed: 12/24/2022] Open
Abstract
To explore how alterations in the phosphodiesterase type 5 (PDE5) signalling pathway and oxidative stress correlate with changes in the expression of relaxation and contraction molecules and erectile dysfunction (ED) in the corpus cavernosum smooth muscle (CCSM) of spontaneously hypertensive rats (SHR). In this study, SHR and Wistar‐Kyoto (WKY) rats were used. Erectile function was determined by apomorphine test and electrical stimulation (ES) of cavernous nerve. Masson's trichrome staining and confocal microscopy were performed. Nitric oxide synthase (NOS), PDE5, phosphorylated‐PDE5 and α1‐adrenergic receptor (α1AR) were determined by RT‐PCR and Western blotting while oxidative stress in CC was determined by colorimetric analysis. SHR exhibited obvious ED. CC of SHR showed less SM but more collagen fibres. The expression of NOS isoforms in SHR was significantly decreased while all α1AR isoforms were increased. In addition, PDE5 and phosphorylated‐PDE5 were down‐regulated and its activity attenuated in the hypertensive rats. Meanwhile, the SHR group suffered oxidative stress, which may be modulated by endoplasmic reticulum stress and NADPH oxidase up‐regulation. Dysregulation of NOS and α1AR, histological changes and oxidative stress in CC may be associated with the pathophysiology of hypertension‐induced ED. In addition, PDE5 down‐regulation may lead to the decreased efficacy of PDE5 inhibitors in some hypertensive ED patients and treatment of oxidative stress could be used as a new therapeutic target for this type of ED.
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Affiliation(s)
- Weixiang He
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianmin Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Daoquan Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jundong Hu
- Department of Urology, First People's Hospital of Xiaochang County, Hubei, China
| | - Ye Jiang
- Department of Urology, People's Hospital of Qichun County, Hubei, China
| | - Mingzhou Li
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qian Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ping Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Guang Zeng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Deqiang Xu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Michael E DiSanto
- Department of Surgery and Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Xinhua Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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Role of Serum High-Sensitivity C-Reactive Protein as a Predictor of Therapeutic Response to Tadalafil in Patients With Erectile Dysfunction: A Prospective Observational Study. J Sex Med 2019; 16:1912-1921. [DOI: 10.1016/j.jsxm.2019.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/09/2019] [Accepted: 09/15/2019] [Indexed: 02/06/2023]
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Akarsu M, Atalay HA, Canat L, Ozcan M, Arman Y, Aydın S, Cil E, Kutlu O, Tükek T. Endocan is markedly overexpressed in severe erectile dysfunction. Andrologia 2017; 50. [DOI: 10.1111/and.12912] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2017] [Indexed: 12/18/2022] Open
Affiliation(s)
- M. Akarsu
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - H. A. Atalay
- Department of Urology; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - L. Canat
- Department of Urology; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - M. Ozcan
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - Y. Arman
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - S. Aydın
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - E. Cil
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - O. Kutlu
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
| | - T. Tükek
- Department of Internal Medicine; Okmeydanı Training and Research Hospital; Sisli-Istanbul Turkey
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