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Wang CM, Wu BR, Xiang P, Xiao J, Hu XC. Management of male erectile dysfunction: From the past to the future. Front Endocrinol (Lausanne) 2023; 14:1148834. [PMID: 36923224 PMCID: PMC10008940 DOI: 10.3389/fendo.2023.1148834] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
Erectile dysfunction is a common disease of the male reproductive system, which seriously affects the life quality of patients and their partners. At present, erectile dysfunction is considered as a social-psychological-physiological disease with complex etiology and various treatment methods. Oral PDE5I is the first-line treatment for erectile dysfunction with the advantages of high safety, good effect and non-invasiveness. But intracavernosal injection, hormonal replacement therapy, vacuum erection device, penile prosthesis implantation can also be alternative treatments for patients have organic erectile dysfunction or tolerance to PDE5I. With the rapid development of technologies, some new methods, such as low-intensity extracorporeal shock wave and stem cell injection therapy can even repair the organic damage of the corpora cavernosa. These are important directions for the treatment of male erectile dysfunction in the future. In this mini-review, we will introduce these therapies in detail.
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Affiliation(s)
| | | | | | - Jun Xiao
- *Correspondence: Jun Xiao, ; Xue-Chun Hu,
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Huang YC, Wu CT, Chen MF, Kuo YH, Li JM, Shi CS. Intracavernous Injection of Autologous Platelet-Rich Plasma Ameliorates Hyperlipidemia-Associated Erectile Dysfunction in a Rat Model. Sex Med 2021; 9:100317. [PMID: 33529811 PMCID: PMC8072173 DOI: 10.1016/j.esxm.2020.100317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 11/28/2022] Open
Abstract
Introduction Hyperlipidemia is associated with an increased risk of erectile dysfunction (ED) mediated by endothelial damage. Platelet-rich plasma (PRP) contains numerous angiogenic growth factors. Currently, evidence supporting the use of PRP for ED treatment is limited. Aim We investigated PRP in a rat model of hyperlipidemia-associated ED. Methods Thirty 2-month-old male Sprague–Dawley rats were randomly divided into 3 groups. 20 rats were fed a high-fat diet for 5 months and were randomly divided into 2 groups: (i) rats in the H group received supernatant injection into the corpus cavernosum weekly for 4 weeks; (ii) rats in the H + PRP group received PRP injection into the corpus cavernosum weekly for 4 weeks. 10 rats were fed a standard diet for 5 months and received supernatant injection into the corpus cavernosum weekly for 4 weeks (N group). 7 days after the 4th injection, all rats underwent erectile function testing and then euthanasia. Main outcome measures Erectile function was evaluated by measuring intracavernous pressure (ICP) and mean arterial pressure (MAP). Serum and penile tissue were collected for metabolic variable assessment and histochemical examination, respectively. Results Intracavernous pressure/MAP and area under the curve/MAP ratios were significantly higher in the N and H + PRP groups than in the H group. Insulin-like growth factor-1, brain-derived neurotrophic factor, and vascular endothelial growth factor levels were significantly higher in the H + PRP group than in the N and H groups. Corporal neuronal nitric oxide synthase, endothelial nitric oxide synthase, and endothelial cells were weakly expressed in the H group compared with the N and H + PRP groups. Intracorporal oxidative stress and apoptotic index were significantly higher in the H group than in the N and H + PRP groups. Conclusions This preclinical evidence suggests that clinical trials of PRP in men with ED should be considered. PRP may play a role in ED management. Huang YC, Wu CT, Chen MF, et al. Intracavernous Injection of Autologous Platelet-Rich Plasma Ameliorates Hyperlipidemia-Associated Erectile Dysfunction in a Rat Model. Sex Med 2021;9:100317.
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Affiliation(s)
- Yun-Ching Huang
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Chun-Te Wu
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Miao-Fen Chen
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Radiation Oncology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yi-Hung Kuo
- Division of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jhy-Ming Li
- Division of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chung-Sheng Shi
- Division of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Chen S, He Z, Xu J. Application of adipose-derived stem cells in photoaging: basic science and literature review. Stem Cell Res Ther 2020; 11:491. [PMID: 33225962 PMCID: PMC7682102 DOI: 10.1186/s13287-020-01994-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022] Open
Abstract
Photoaging is mainly induced by continuous exposure to sun light, causing multiple unwanted skin characters and accelerating skin aging. Adipose-derived stem cells(ADSCs) are promising in supporting skin repair because of their significant antioxidant capacity and strong proliferation, differentiation, and migration ability, as well as their enriched secretome containing various growth factors and cytokines. The identification of the mechanisms by which ADSCs perform these functions for photoaging has great potential to explore therapeutic applications and combat skin aging. We also review the basic mechanisms of UV-induced skin aging and recent improvement in pre-clinical applications of ADSCs associated with photoaging. Results showed that ADSCs are potential to address photoaging problem and might treat skin cancer. Compared with ADSCs alone, the secretome-based approaches and different preconditionings of ADSCs are more promising to overcome the current limitations and enhance the anti-photoaging capacity.
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Affiliation(s)
- Shidie Chen
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003, China
| | - Zhigang He
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003, China.
| | - Jinghong Xu
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou, 310003, China.
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Lin JH, Ho DR, Shi CS, Chen CS, Li JM, Huang YC. The influence of smoking exposure and cessation on penile hemodynamics and corporal tissue in a rat model. Transl Androl Urol 2020; 9:637-645. [PMID: 32420170 PMCID: PMC7215033 DOI: 10.21037/tau.2019.12.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background While epidemiological studies have clearly documented that smoking cessation significantly enhances sexual health, the underlying mechanism remains largely unknown. Thus, we wished to explore possible mechanisms by using a rat model of smoking-associated erectile dysfunction (ED). Methods Forty 8-week old male Sprague-Dawley rats were divided into 4 groups. Ten rats were exposed only to room air (N group). The remaining 30 rats were passively exposed to cigarette smoke over a 12-week period. At the end of 12 weeks, the smoking (S, n=10) group underwent immediate erectile function testing and were sacrificed. The remaining 20 rats were exposed to room air only for 4 (Q4W, n=10) or 8 (Q8W, n=10) weeks and then underwent erectile function testing and sacrifice. Erectile function was evaluated by measuring intracavernous pressure (ICP) and mean arterial pressure (MAP). After blood collection for serum testosterone determination, rats were sacrificed to obtain corporal tissue for immunohistochemistry. Results Mean ICP/MAP ratio was significantly lower in the S group compared to the N and Q8W groups (0.52±0.11, 0.94±0.05, and 0.94±0.12, respectively, P=0.0189). Smooth muscle/collagen ratio was also significantly lower in the S group compared to the N and Q8W groups (11.8±0.94, 17.5±1.82, and 16.4±0.60, respectively, P=0.0008). Oxidative stress and apoptotic indices were significantly higher in the S group compared to the N and Q8W groups. Neuronal and endothelial nitric oxide synthases were significantly less expressed in the S group compared to the N and Q8W groups. Conclusions Smoking cessation is associated with partial recovery of penile hemodynamics in a rat model of smoking associated ED.
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Affiliation(s)
- Jian-Hui Lin
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi
| | - Dong-Ru Ho
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi
| | - Chung-Sheng Shi
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan
| | - Chih-Shou Chen
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi
| | - Jhy-Ming Li
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan.,Division of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi
| | - Yun-Ching Huang
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi.,Department of Medicine, College of Medicine, Chang Gung University, Taoyuan
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Lokeshwar SD, Patel P, Shah SM, Ramasamy R. A Systematic Review of Human Trials Using Stem Cell Therapy for Erectile Dysfunction. Sex Med Rev 2020; 8:122-130. [DOI: 10.1016/j.sxmr.2019.08.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/19/2019] [Accepted: 08/24/2019] [Indexed: 01/08/2023]
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Curley M, Gonzalez ZN, Milne L, Hadoke P, Handel I, Péault B, Smith LB. Human Adipose-derived Pericytes Display Steroidogenic Lineage Potential in Vitro and Influence Leydig Cell Regeneration in Vivo in Rats. Sci Rep 2019; 9:15037. [PMID: 31636275 PMCID: PMC6803635 DOI: 10.1038/s41598-019-50855-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 09/06/2019] [Indexed: 02/07/2023] Open
Abstract
Exogenous androgen replacement is used to treat symptoms associated with low testosterone in males. However, adverse cardiovascular risk and negative fertility impacts impel development of alternative approaches to restore/maintain Leydig cell (LC) androgen production. Stem Leydig cell (SLC) transplantation shows promise in this regard however, practicality of SLC isolation/transplantation impede clinical translation. Multipotent human adipose-derived perivascular stem cells (hAd-PSCs) represent an attractive extragonadal stem cell source for regenerative therapies in the testis but their therapeutic potential in this context is unexplored. We asked whether hAd-PSCs could be converted into Leydig-like cells and determined their capacity to promote regeneration in LC-ablated rat testes. Exposure of hAd-PSCs to differentiation-inducing factors in vitro upregulated steroidogenic genes but did not fully induce LC differentiation. In vivo, no difference in LC-regeneration was noted between Sham and hAd-PSC-transplanted rats. Interestingly, Cyp17a1 expression increased in hAd-PSC-transplanted testes compared to intact vehicle controls and the luteinising hormone/testosterone ratio returned to Vehicle control levels which was not the case in EDS + Sham animals. Notably, hAd-PSCs were undetectable one-month after transplantation suggesting this effect is likely mediated via paracrine mechanisms during the initial stages of regeneration; either directly by interacting with regenerating LCs, or through indirect interactions with trophic macrophages.
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Affiliation(s)
- Michael Curley
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom
| | - Zaniah N Gonzalez
- MRC Centre for Regenerative Medicine, University of Edinburgh, Edinburgh Bioquarter, 5 Little France Drive, Edinburgh, EH16 4UU, United Kingdom
| | - Laura Milne
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom
| | - Patrick Hadoke
- The British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, The Queen's Medical Research Institute, Edinburgh, EH16 4TJ, United Kingdom
| | - Ian Handel
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, United Kingdom
| | - Bruno Péault
- MRC Centre for Regenerative Medicine, University of Edinburgh, Edinburgh Bioquarter, 5 Little France Drive, Edinburgh, EH16 4UU, United Kingdom.,Department of Orthopaedic Surgery and Broad Stem Cell Center, University of California at Los Angeles, 615 Charles E Young Dr S, Los Angeles, CA, 90095, USA
| | - Lee B Smith
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom. .,School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia.
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Yang J, Yu Z, Zhang Y, Zang G, Zhuan L, Tang Z, Liu Y, Wang T, Wang S, Liu J. Preconditioning of adipose‐derived stem cells by phosphodiesterase‐5 inhibition enhances therapeutic efficacy against diabetes‐induced erectile dysfunction. Andrology 2019; 8:231-240. [DOI: 10.1111/andr.12661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 04/08/2019] [Accepted: 05/06/2019] [Indexed: 12/17/2022]
Affiliation(s)
- J. Yang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - Z. Yu
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - Y. Zhang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - G.‐H. Zang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - L. Zhuan
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - Z. Tang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - Y. Liu
- Department of Neurology, Tongji Medical College Huazhong University of Science and Technology Hubei China
| | - T. Wang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - S.‐G. Wang
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
| | - J.‐H. Liu
- Department of Urology, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
- Institute of Urology of Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and Technology HubeiChina
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Huang YC, Ho DR, Lin JH, Huang KT, Chen CS, Shi CS. Dietary Modification Is Associated with Normalization of Penile Hemodynamics in Rats Fed a High-Fat Diet. J Sex Med 2019; 16:791-802. [PMID: 31010783 DOI: 10.1016/j.jsxm.2019.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 03/06/2019] [Accepted: 03/14/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Diet is associated with self-reported indices of sexual health. The mechanisms responsible for these changes remain poorly understood. AIM To investigate the hemodynamic and histological impact of dietary change in a rat model of hyperlipidemia-associated erectile dysfunction. METHODS 40 2-month old male Sprague-Dawley rats were divided into 4 groups. 10 rats were fed a diet of standard chow and served as negative controls (N group). The remaining 30 age-matched rats were divided at random into 3 groups: (i) high-fat diet for 5 months starting at age 5 months (H group); (ii) high-fat diet for 5 months starting at age 4 months followed by 1 month of standard chow (H+N1M group); and (iii) high-fat diet for 5 months starting at age 2 months followed by 3 months of standard chow (H+N3M group). All rats underwent erectile function testing and sacrifice at age 10 months. OUTCOMES Intracavernous pressure (ICP) and mean arterial pressure (MAP) were measured to evaluate erectile function. Blood samples were collected to measure serum testosterone and lipid levels, and penile tissue specimens were obtained for histological examination. RESULTS Total body weight, low-density lipoprotein, and serum glucose were significantly higher in the H group compared with the N and H+N3M groups. Serum high-density lipoprotein level was significantly lower in the H group compared with the N and H+N3M groups. The mean ICP/MAP ratio was significantly lower in the H group compared with the N and H+N3M groups (0.33 ± 0.05 vs 0.79 ± 0.07 vs 0.73 ± 0.13; P < .05 for both). Markers for intracorporal neuronal nitric oxide synthase and endothelial cells were more weakly expressed in the H group compared with the N and H+N3M groups. There was no significant difference in smooth muscle content among the groups. Mean cavernosal oxidative stress and the apoptotic index were significantly higher in the H group compared with the N and H+N3M groups. No significant between-group differences were noted with respect to serum testosterone; the H group had significantly higher serum glucose and low-density lipoprotein levels, effects that were partially mitigated in the H +N1M and H+N3M groups. CLINICAL TRANSLATION Administration of a healthy diet is associated with normalization of functional and histological penile defects associated with a high-fat diet. STRENGTHS & LIMITATIONS Metabolic changes were clearly linked to functional improvements in penile blood flow. Differences between rat and human lipoprotein metabolism are a limitation of this study. CONCLUSION Dietary changes may have positive effects on penile hemodynamics in a rat model of hyperlipidemia-associated erectile dysfunction. Huang Y-C, Ho D-R, Lin J-H, et al. Dietary Modification Is Associated with Normalization of Penile Hemodynamics in Rats Fed a High-Fat Diet. J Sex Med 2019;16:791-802.
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Affiliation(s)
- Yun-Ching Huang
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Dong-Ru Ho
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Jian-Hui Lin
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Kuo-Tsai Huang
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chih-Shou Chen
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chung-Sheng Shi
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Ge S, Ye P, Li GY, Fu YF, Zhou Q, Huang F, Wang X, Wang WM. Effects of active and passive smoking on salivary cytokines levels in rats: A pilot study. Toxicol Ind Health 2018; 35:109-118. [PMID: 30558485 DOI: 10.1177/0748233718817192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cigarette smoking is an established risk factor for some oral diseases. As an essential fluid in the oral cavity, saliva is crucial to maintain oral health. Relative to active smoking, there are very few studies assessing the effect of passive smoking on salivary cytokines levels. In the present study, we established the rat models by the means of the intraoral cigarette smoking or whole body cigarette smoke exposure to simulate human active or passive smoking, respectively. The effects of active or passive smoking on salivary cytokines levels were assessed by using ProcartaPlex multiplex immunoassays. The results of the current study indicated that both active and passive smoking diminished the body weights of rats and increased the levels of some blood counts. Intriguingly, active smoking enhanced the salivary levels of IL-6 and IL-12 p70 and passive smoking elevated the salivary IL-6 level. Moreover, active smoking appeared to have a more prominent activation effect on the salivary IL-6 level. It was noted that active or passive smoking had no significant effect on the salivary IFN-γ level. Active or passive smoking could have potential effects on the salivary levels of some pro-inflammatory cytokines.
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Affiliation(s)
- Sheng Ge
- 1 Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Pei Ye
- 2 Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guo-Yang Li
- 1 Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yi-Fu Fu
- 3 Department of Clinical Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qian Zhou
- 2 Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Fan Huang
- 1 Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiang Wang
- 1 Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wen-Mei Wang
- 1 Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
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Milenkovic U, Albersen M, Castiglione F. The mechanisms and potential of stem cell therapy for penile fibrosis. Nat Rev Urol 2018; 16:79-97. [DOI: 10.1038/s41585-018-0109-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hou QL, Ge MY, Zhang CD, Tian DD, Wang LK, Tian HZ, Wang WH, Zhang WD. Adipose tissue-derived stem cell therapy for erectile dysfunction in rats: a systematic review and meta-analysis. Int Urol Nephrol 2017; 49:1127-1137. [PMID: 28417342 DOI: 10.1007/s11255-017-1590-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 04/09/2017] [Indexed: 01/10/2023]
Abstract
OBJECTIVE We aimed to systematically assess the effect of adipose tissue-derived stem cell (ADSC) therapy and its influential factors on the treatment of erectile dysfunction (ED) in rats. METHODS Two authors independently searched for published studies through PubMed and EMBASE from study inception until August 31, 2016. A meta-analysis was used to combine the effect estimate from the published studies. A subgroup analysis was performed to identify the effect of some influential factors. The pooled standardized mean differences (SMDs) with 95% confidence intervals (CIs) were calculated by a fixed-effects or random-effects model analysis. RESULTS Twenty studies with a total of 248 rats were included in this meta-analysis. The pooled analysis showed that ADSC therapy significantly increased the ratio of intracavernous pressure and mean arterial pressure (ICP/MAP; SMD 3.46, 95% CI 2.85-4.06; P < 0.001) compared to control therapy. The levels of neuronal nitric oxide synthase (nNOS; SMD 6.37, 95% CI 4.35-8.39; P < 0.001), the cavernous smooth muscle content (CSMC; SMD 3.65, 95% CI 2.65-4.65; P < 0.001), the ratio of cavernous smooth muscle and collagen (CSM/collagen; SMD 4.16, 95% CI 2.59-5.72; P < 0.001), and the cyclic guanosine monophosphate (cGMP; SMD 7.12, 95% CI 2.76-11.48; P = 0.001) were higher following ADSC therapy than following control therapy. Subgroup analysis showed that ADSCs modified by growth or neurotrophic factors significantly recovered erectile function (P < 0.001) compared with ADSC therapy. CONCLUSION The adequate data indicated that ADSC therapy recovered erectile function and regenerated cavernous structures in ED rats, and ADSCs modified by some growth and neurotrophic factors accelerated the recovery of erectile function and cavernous structures in ED rats.
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Affiliation(s)
- Quan-Liang Hou
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Meng-Ying Ge
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Cheng-da Zhang
- School of Public Health and Tropical Medicine, New Orleans, LA, 70112, USA
| | - Dan-Dan Tian
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Lian-Ke Wang
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Hui-Zi Tian
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Wen-Hua Wang
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Wei-Dong Zhang
- Department of Epidemiology, College of Public Heath, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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Stem Cells in Male Sexual Dysfunction: Are We Getting Somewhere? Sex Med Rev 2016; 5:222-235. [PMID: 28041853 DOI: 10.1016/j.sxmr.2016.11.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/02/2016] [Accepted: 11/22/2016] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Stem cells for sexual disorders are steadily being introduced into clinical trials. Two conditions of importance are the main target for this line of treatment, especially when regarding the wide array of translational and basic science highlighting the potential advantages of regenerative therapy: erectile dysfunction (ED) and more recently Peyronie disease (PD). Cellular therapy offers a treatment modality that might reverse disease progression. It would be used in a curative setting, in contrast to other pharmaceutical agents that are currently available. AIM To review basic preclinical studies and recent clinical trials of stem cells on ED and PD. METHODS A search of the medical literature for the following terms was performed using PubMed: stem cells, cellular therapy, erectile dysfunction, Peyronie's disease, and clinical trial. MAIN OUTCOME MEASURES A non-systematic narrative review and critical reflection on preclinical and clinical studies administering stem cells for ED and PD in animal models and human subjects. RESULTS Numerous studies have confirmed the beneficial functional effects of stem cell injection in established animal models on ED and PD. Various stem cell types have been adopted, from embryonic to adult mesenchymal cell types. Each cell type offers distinctive advantages and disadvantages. Diverse administrations of stem cells were investigated, with insignificant variability in the ultimate results. Stem cells appear to have a pronounced paracrine effect, rather than the classic engraftment and differentiation hypothesis. Phase 1 clinical trials using stem cells have not reported any severe adverse events in animals. However, these results cannot be extrapolated to draw any conclusions about efficacy in human patients. CONCLUSION Stem cells have an established efficacy in preclinical studies and early clinical trials. Studies are currently being published demonstrating the safety of intrapenile injection of autologous bone marrow- and adipose tissue-derived stem cells. Soebadi MA, Milenkovic U, Weyne E, et al. Stem Cells in Male Sexual Dysfunction: Are We Getting Somewhere? Sex Med Rev 2017;5:222-235.
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