Erectile dysfunction(ED)has been identified as one of the most frequent chronic complications of diabetes mellitus(DM).The prevalence of ED is estimated to be about 67.4%in all DM cases worldwide.The pathophysiologica...Erectile dysfunction(ED)has been identified as one of the most frequent chronic complications of diabetes mellitus(DM).The prevalence of ED is estimated to be about 67.4%in all DM cases worldwide.The pathophysiological process leading to ED involves endothelial,neurological,hormonal,and psychological factors.In DM,endothelial and neurological factors play a crucial role.Damages in the blood vessels and erectile tissue due to insulin resistance are the hallmark of ED in DM.The current treatments for ED include phosphodiesterase-5 inhibitors and penile prosthesis surgery.However,these treatments are limited in terms of just relieving the symptoms,but not resolving the cause of the problem.The use of stem cells for treating ED is currently being studied mostly in experimental animals.The stem cells used are derived from adipose tissue,bone,or human urine.Most of the studies observed an improvement in erectile quality in the experimental animals as well as an improvement in erectile tissue.However,research on stem cell therapy for ED in humans remains to be limited.Nevertheless,significant findings from studies using animal models indicate a potential use of stem cells in the treatment of ED.展开更多
Diabetic erectile dysfunction(DED)is a common complication of diabetes mellitus,significantly impairing the quality of life of patients.The conventional clinical treatment still has limitations.Stem cells(SCs),as a ty...Diabetic erectile dysfunction(DED)is a common complication of diabetes mellitus,significantly impairing the quality of life of patients.The conventional clinical treatment still has limitations.Stem cells(SCs),as a type of cells with multidirectional or directional differentiation capability and sustainable selfrenewal potential,are widely used in regenerative medicine and tissue engineering.With the continuous update of regenerative medicine theory and the success of animal experiments,SCs as a treatment for male erectile dysfunction,especially DED,have attracted widespread attention because of curable possibility.This review focus on the current progress in the clinical application of SC treatment for DED.Moreover,we summarize the development prospects of SCs in the field of DMED therapy.展开更多
In order to investigate the relationship between gut microbiota and type 2 diabetic erectile dysfunction(T2DED), we analyzed the characteristics of gut microbiota in the Sprague-Dawley(SD) rats with T2DED. Thirty-...In order to investigate the relationship between gut microbiota and type 2 diabetic erectile dysfunction(T2DED), we analyzed the characteristics of gut microbiota in the Sprague-Dawley(SD) rats with T2DED. Thirty-five SD rats were randomly divided into two groups: control group(n=15) with normal diet, and experimental group(n=20) with construction of T2D model. Faecal and serum samples were collected at 2nd and 8th week after establishment of T2D model, respectively. Faecal samples were used for analysis of gut microbiota, and serum samples for detection of trimethylamine N-oxide(TMAO), lipopolysaccharide(LPS), and inflammatory factors like interleukin-1(IL-1), IL-2, IL-10, and monocyte chemoattractantprotein-1(MCP-1). The main compositions of gut microbiota were Bacteroidetes, Proteobacteria and Firmicutes at the phylum level, and Oscillospira, Allobaculum, Bacteroides, Ruminococcus, SMB53, Prevotella, Coprococcus, Sutterella and Blautia at the genus level with relatively higher abundance in all SD rats. The relative abundance of Enterococcus, Corynebacterium, Aerococcus, Facklamia(opportunistic pathogens in most case) increased, and that of Allobaculum, Bifidobacterium, Eubacterium, Anaerotruncus(beneficial bacteria) decreased in T2DED group as compared with that at 2nd week after establishment of T2D model(T2D2 group). The serum contents of TMAO, LPS, IL-1, IL-2, IL-10 and MCP-1 in T2DED group were significantly higher than those in control group. The gut microbiota of T2DED rats was inhibited. The gut microbiota of T2DED rats had changed, as the relative abundance of beneficial bacterium was decreased while that of opportunistic pathogens was increased. The variations of gut microbiota might lead to inflammation and prompt the emergence of erectile dysfunction in the rats with T2D. TMAO might play an important role in the formation of T2DED.展开更多
Background:This study aims to investigate the therapeutic effect of Wa medicine Niang-Mu-Liang medicinal liquor(NML)on rats with diabetes mellitus erectile dysfunction(DMED)and its impact on the ferroptosis signaling ...Background:This study aims to investigate the therapeutic effect of Wa medicine Niang-Mu-Liang medicinal liquor(NML)on rats with diabetes mellitus erectile dysfunction(DMED)and its impact on the ferroptosis signaling pathway.Methods:Thirty Sprague-Dawley rats were randomly divided into three groups:Control,DMED,and NML.After establishing the DMED model,treatments were administered for 8 weeks.After the administration,apomorphine hydrochloride tests were conducted to measure the mass and organ index of testes and epididymides,sperm concentration and viability in each group.Penile corpus cavernosum tissues were stained with hematoxylin and eosin.Nitric oxide and cyclic guanosine monophosphate levels in the penile corpus cavernosum tissues were determined using biochemical kits and enzyme-linked immunosorbent assay,while the expression of proteins related to the ferroptosis signaling pathway was measured by Western blot.Results:Compared to the DMED group,the DMED rats treated with NML showed significantly increased erection frequency,testicular and epididymal mass and index,sperm count and viability,along with noticeable improvement in the pathological morphology of penile corpus cavernosum.The content of nitric oxide and cyclic guanosine monophosphate,and the expression of ferritin heavy chain,ferritin light chain,and glutathione peroxidase 4 proteins in penile corpus cavernosum tissue were elevated,while the expression of transferrin and STEAP3 proteins was reduced.Conclusion:NML can improve erectile function in DMED rats by inhibiting the ferroptosis signaling pathway.展开更多
Background:To investigate the mechanism of Xuefu Zhuyu decoction in the treatment of diabetes mellitus erectile dysfunction.Methods:Rats with diabetes mellitus erectile dysfunction were developed using streptozocin an...Background:To investigate the mechanism of Xuefu Zhuyu decoction in the treatment of diabetes mellitus erectile dysfunction.Methods:Rats with diabetes mellitus erectile dysfunction were developed using streptozocin and randomly assigned into model,low-dose herbal,and high-dose herbal groups.All rats were administered normal saline or the corresponding drugs by oral gavage for 4 weeks.The related indices were detected using enzyme-linked immunosorbent assays,immunohistochemistry,western blotting,and transmission electron microscopy.Results:The levels of lectin-like oxidized low-density protein receptor-1,endothelin-1,NADH oxidase,vascular cell adhesion molecule-1,and intercellular adhesion molecule-1 in the model group were significantly higher than they were in the mock group but lower than they were in the herbal treatment group.The level of nitric oxide was lower in the model group than was in the mock group but higher than the level in the herbal treatment group.The calcium-sensitive receptor,phospho-protein kinase Cδ/protein kinase Cδ,phosphorylated c-Jun amino-terminal kinase/c-Jun amino-terminal kinase,and phospho-P38 mitogen-activated protein kinase/P38 mitogen-activated protein kinase expression levels in the model group were higher than were in the mock group but lower than were in the herbal treatment group.The structures of the Corpus cavernosum penis endothelial cells were significantly improved in the herbal treatment group than they did in the model group.Conclusion:Xuefu Zhuyu decoction can decrease injury to the endothelium,improve vascular endothelial diastolic and contractive function,and inhibit vascular fibrosis in rats with diabetes mellitus erectile dysfunction.This mechanism may be related to the CaSR/Gq-PLC-PKC pathway.展开更多
The major vascular complications associated with diabetes make the management of diabetic mellitus erectile dysfunction(DMED)a challenging endeavor.Notable factors contributing to DMED include oxidative stress,nitric ...The major vascular complications associated with diabetes make the management of diabetic mellitus erectile dysfunction(DMED)a challenging endeavor.Notable factors contributing to DMED include oxidative stress,nitric oxide(NO)/cyclic guanosine monophosphate(cGMP)pathway activation,and apoptosis,while nitro-oleic acid(NO,-OA)has been shown to be beneficial in treating these aspects of this condition.We,herein,investigated the effects and possible mechanisms of NO,-OA on erectile function as assessed in a streptozotocin-induced rat model of diabetes.Our results revealed that the erectile function of DMED rats was significantly impaired compared with that of the control group.However,in response to 4 weeks of NO,-OA treatment,there was an improvement in erectile function.The expression of oxidative stress-related indicators was significantly increased and the NO/cGMP pathway was impaired in the DMED group.The expression of proapoptotic factors was increased,while that of antiapoptotic factors was decreased in the DMED group.Moreover,the cell morphology in the cavernous tissue of the DMED group also changed adversely.NO,-OA treatment significantly reversed all these changes observed in the DMED group.In conclusion,NO,-OA treatment partially improved erectile function in DMED rats through mechanisms that included inhibition of oxidative stress,activation of the NO/cGMP pathway,and a reduction in apoptosis.展开更多
基金Supported by Mandate Research Grant from Universitas Airlangga,No.1408/UN3/2019.
文摘Erectile dysfunction(ED)has been identified as one of the most frequent chronic complications of diabetes mellitus(DM).The prevalence of ED is estimated to be about 67.4%in all DM cases worldwide.The pathophysiological process leading to ED involves endothelial,neurological,hormonal,and psychological factors.In DM,endothelial and neurological factors play a crucial role.Damages in the blood vessels and erectile tissue due to insulin resistance are the hallmark of ED in DM.The current treatments for ED include phosphodiesterase-5 inhibitors and penile prosthesis surgery.However,these treatments are limited in terms of just relieving the symptoms,but not resolving the cause of the problem.The use of stem cells for treating ED is currently being studied mostly in experimental animals.The stem cells used are derived from adipose tissue,bone,or human urine.Most of the studies observed an improvement in erectile quality in the experimental animals as well as an improvement in erectile tissue.However,research on stem cell therapy for ED in humans remains to be limited.Nevertheless,significant findings from studies using animal models indicate a potential use of stem cells in the treatment of ED.
基金the National Natural Science Foundation of China,No.81971759.
文摘Diabetic erectile dysfunction(DED)is a common complication of diabetes mellitus,significantly impairing the quality of life of patients.The conventional clinical treatment still has limitations.Stem cells(SCs),as a type of cells with multidirectional or directional differentiation capability and sustainable selfrenewal potential,are widely used in regenerative medicine and tissue engineering.With the continuous update of regenerative medicine theory and the success of animal experiments,SCs as a treatment for male erectile dysfunction,especially DED,have attracted widespread attention because of curable possibility.This review focus on the current progress in the clinical application of SC treatment for DED.Moreover,we summarize the development prospects of SCs in the field of DMED therapy.
基金supported by grants from the National Nature Science Foundation of China(No.81370705 and No.81471450)Science and Technology Planning Project of Guangdong Province,China(No.2013B021800204)
文摘In order to investigate the relationship between gut microbiota and type 2 diabetic erectile dysfunction(T2DED), we analyzed the characteristics of gut microbiota in the Sprague-Dawley(SD) rats with T2DED. Thirty-five SD rats were randomly divided into two groups: control group(n=15) with normal diet, and experimental group(n=20) with construction of T2D model. Faecal and serum samples were collected at 2nd and 8th week after establishment of T2D model, respectively. Faecal samples were used for analysis of gut microbiota, and serum samples for detection of trimethylamine N-oxide(TMAO), lipopolysaccharide(LPS), and inflammatory factors like interleukin-1(IL-1), IL-2, IL-10, and monocyte chemoattractantprotein-1(MCP-1). The main compositions of gut microbiota were Bacteroidetes, Proteobacteria and Firmicutes at the phylum level, and Oscillospira, Allobaculum, Bacteroides, Ruminococcus, SMB53, Prevotella, Coprococcus, Sutterella and Blautia at the genus level with relatively higher abundance in all SD rats. The relative abundance of Enterococcus, Corynebacterium, Aerococcus, Facklamia(opportunistic pathogens in most case) increased, and that of Allobaculum, Bifidobacterium, Eubacterium, Anaerotruncus(beneficial bacteria) decreased in T2DED group as compared with that at 2nd week after establishment of T2D model(T2D2 group). The serum contents of TMAO, LPS, IL-1, IL-2, IL-10 and MCP-1 in T2DED group were significantly higher than those in control group. The gut microbiota of T2DED rats was inhibited. The gut microbiota of T2DED rats had changed, as the relative abundance of beneficial bacterium was decreased while that of opportunistic pathogens was increased. The variations of gut microbiota might lead to inflammation and prompt the emergence of erectile dysfunction in the rats with T2D. TMAO might play an important role in the formation of T2DED.
基金supported by the Yunnan Provincial Science and Technology Department Science and Technology Plan Project (202101AZ070001-064).
文摘Background:This study aims to investigate the therapeutic effect of Wa medicine Niang-Mu-Liang medicinal liquor(NML)on rats with diabetes mellitus erectile dysfunction(DMED)and its impact on the ferroptosis signaling pathway.Methods:Thirty Sprague-Dawley rats were randomly divided into three groups:Control,DMED,and NML.After establishing the DMED model,treatments were administered for 8 weeks.After the administration,apomorphine hydrochloride tests were conducted to measure the mass and organ index of testes and epididymides,sperm concentration and viability in each group.Penile corpus cavernosum tissues were stained with hematoxylin and eosin.Nitric oxide and cyclic guanosine monophosphate levels in the penile corpus cavernosum tissues were determined using biochemical kits and enzyme-linked immunosorbent assay,while the expression of proteins related to the ferroptosis signaling pathway was measured by Western blot.Results:Compared to the DMED group,the DMED rats treated with NML showed significantly increased erection frequency,testicular and epididymal mass and index,sperm count and viability,along with noticeable improvement in the pathological morphology of penile corpus cavernosum.The content of nitric oxide and cyclic guanosine monophosphate,and the expression of ferritin heavy chain,ferritin light chain,and glutathione peroxidase 4 proteins in penile corpus cavernosum tissue were elevated,while the expression of transferrin and STEAP3 proteins was reduced.Conclusion:NML can improve erectile function in DMED rats by inhibiting the ferroptosis signaling pathway.
基金supported by Fujian Provincial Natural Science Foundation Project(2020J01243).
文摘Background:To investigate the mechanism of Xuefu Zhuyu decoction in the treatment of diabetes mellitus erectile dysfunction.Methods:Rats with diabetes mellitus erectile dysfunction were developed using streptozocin and randomly assigned into model,low-dose herbal,and high-dose herbal groups.All rats were administered normal saline or the corresponding drugs by oral gavage for 4 weeks.The related indices were detected using enzyme-linked immunosorbent assays,immunohistochemistry,western blotting,and transmission electron microscopy.Results:The levels of lectin-like oxidized low-density protein receptor-1,endothelin-1,NADH oxidase,vascular cell adhesion molecule-1,and intercellular adhesion molecule-1 in the model group were significantly higher than they were in the mock group but lower than they were in the herbal treatment group.The level of nitric oxide was lower in the model group than was in the mock group but higher than the level in the herbal treatment group.The calcium-sensitive receptor,phospho-protein kinase Cδ/protein kinase Cδ,phosphorylated c-Jun amino-terminal kinase/c-Jun amino-terminal kinase,and phospho-P38 mitogen-activated protein kinase/P38 mitogen-activated protein kinase expression levels in the model group were higher than were in the mock group but lower than were in the herbal treatment group.The structures of the Corpus cavernosum penis endothelial cells were significantly improved in the herbal treatment group than they did in the model group.Conclusion:Xuefu Zhuyu decoction can decrease injury to the endothelium,improve vascular endothelial diastolic and contractive function,and inhibit vascular fibrosis in rats with diabetes mellitus erectile dysfunction.This mechanism may be related to the CaSR/Gq-PLC-PKC pathway.
基金The Rongxiang Regenerative Medicine Foundation of Shandong University(No.2019SDRX-xx)supported this study.
文摘The major vascular complications associated with diabetes make the management of diabetic mellitus erectile dysfunction(DMED)a challenging endeavor.Notable factors contributing to DMED include oxidative stress,nitric oxide(NO)/cyclic guanosine monophosphate(cGMP)pathway activation,and apoptosis,while nitro-oleic acid(NO,-OA)has been shown to be beneficial in treating these aspects of this condition.We,herein,investigated the effects and possible mechanisms of NO,-OA on erectile function as assessed in a streptozotocin-induced rat model of diabetes.Our results revealed that the erectile function of DMED rats was significantly impaired compared with that of the control group.However,in response to 4 weeks of NO,-OA treatment,there was an improvement in erectile function.The expression of oxidative stress-related indicators was significantly increased and the NO/cGMP pathway was impaired in the DMED group.The expression of proapoptotic factors was increased,while that of antiapoptotic factors was decreased in the DMED group.Moreover,the cell morphology in the cavernous tissue of the DMED group also changed adversely.NO,-OA treatment significantly reversed all these changes observed in the DMED group.In conclusion,NO,-OA treatment partially improved erectile function in DMED rats through mechanisms that included inhibition of oxidative stress,activation of the NO/cGMP pathway,and a reduction in apoptosis.