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Corpus cavernosum

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https://www.readbyqxmd.com/read/29417194/-sphincter-and-corpus-cavernosum-prostheses-as-components-of-endoprosthetics-in-urology
#1
T A Ludwig, R Dahlem
Artificial urinary sphincters and penile corpus cavernosum prostheses are effective for patients who are not adequately treated by conservative treatment or pharmacotherapy. Both of these devices show good results concerning functional outcome if used within the correct patient selection. Penile prostheses are meant to be the last line of treatment for severe erectile dysfunction after failure of conventional treatment. Artificial urinary sphincters are the treatment of choice for severe urinary stress incontinence...
February 7, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29410690/shear-wave-elastography-can-it-be-a-new-radiologic-approach-for-the-diagnosis-of-erectile-dysfunction
#2
Rustu Turkay, Ercan Inci, Mustafa Gurkan Yenice, Volkan Tugcu
Introduction: Erectile dysfunction (ED) is a common health problem among males, and radiology has limited use in its diagnosis and treatment. Shear wave elastography (SWE) is a new sonographic technique. In this study, we examined the significance of SWE in the diagnosis of ED. Methods: The study included a total number of 70 participants. The mean age of the participants was 54.14 ± 8.03 years (range: 39 and 71 years old). We composed two groups. Group 1 had 35 patients who presented to the urology clinic in our hospital complaining of ED, and had a score of 17 or lower from the International Index of Erectile Function (IIEF) questionnaire...
August 2017: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/29402797/angiotensin-ii-silencing-alleviates-erectile-dysfunction-through-down-regulating-the-rhoa-rho-kinase-signaling-pathway-in-rats-with-diabetes-mellitus
#3
Ying Zhang, Linpei Jia, Ying Zhang, Wei Ji, Hai Li
BACKGROUND/AIMS: We aim to explore the role of angiotensin (Ang)II and the RhoA/Rho kinase signaling pathway in the pathogenesis of erectile dysfunction in diabetes mellitus (DM). METHODS: Male Sprague-Dawley (SD) rats were used for experiments and short hairpin RNA (shRNA) was used to silence the AngII gene. The erectile function of rats was observed and intracavernous pressure and mean arterial pressure (ICP/MAP) were measured after electrical stimulation. Relaxation and contraction of smooth muscle in the corpus cavernosum were tested...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29397093/effects-of-aqueous-leaf-extract-of-tridax-procumbens-on-contractile-activity-of-corpus-cavernosum-in-n-nitro-l-arginine-methyl-ester-induced-hypertensive-male-rats
#4
Shakiru Ademola Salami, Hussein Mofomosara Salahdeen, Evangelshane Chukwudubem Ugbebor, Babatunde Adekunle Murtala, Yinusa Raji
OBJECTIVE: This study investigated the effects of aqueous leaf extract of Tridax procumbens (ALETP) on contractile activity of corpus cavernosum in N-nitro-l-arginine methyl ester (l-NAME)-induced hypertensive male rats. METHODS: Twenty normal, adult male rats (130-150 g) were divided into four groups of five rats each. Group I (control) was given normal saline (0.6 mL/kg) and group II was given l-NAME (40 mg/kg) for 6 weeks. Groups III and IV also received l-NAME (40 mg/kg) for 6 weeks but were further co-treated with 100 and 200 mg/kg of ALETP, respectively, from week 4 to week 6...
January 2018: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29387554/testosterone-replacement-maintains-smooth-muscle-content-in-the-corpus-cavernosum-of-orchiectomized-rats
#5
Graziele Halmenschlager, Ernani Luis Rhoden, Gabriela Almeida Motta, Lucas Sagrillo Fagundes, Jorge Luiz Medeiros, Rosalva Meurer, Cláudia Ramos Rhoden
Objective: To evaluate the effects of testosterone (T) on the maintenance of corpus cavernosum (CC) structure and apoptosis. Methods: Animals were divided into three groups: sham operation group (n = 8) underwent sham operation; Orchiectomized (Orchiec)+ oily vehicle group (n = 8) underwent bilateral orchiectomy and received a single dose of oily vehicle by intramuscular injection (i.m.) 30 days after orchiectomy; and Orchiec + T group (n = 8) underwent bilateral orchiectomy and received a single dose of T undecanoate 100 mg/kg i...
October 2017: Asian Journal of Urology
https://www.readbyqxmd.com/read/29382932/improvement-of-penile-neurogenic-and-endothelial-relaxant-responses-by-chronic-administration-of-resveratrol-in-rabbits-exposed-to-unpredictable-chronic-mild-stress
#6
Yusufhan Yazir, Tijen Utkan, Tuğçe Demirtaş Şahin, Semil Selcen Gocmez
Chronic stress is an important public health problem known as a risk factor for depression, cognitive deficits, and also erectile dysfunction (ED). Resveratrol, a plant polyphenol, was reported to activate constitutive endothelial nitric oxide synthase (eNOS). Although resveratrol has been proven to exert beneficial effects on the unpredictable chronic mild stress (UCMS)-induced decline in cognitive functions, its potential protecting effect on the penile tissue subjected to UCMS was in fact not investigated...
January 30, 2018: International Journal of Impotence Research
https://www.readbyqxmd.com/read/29335865/beneficial-effect-of-berberis-amurensis-rupr-on-penile-erection
#7
Rui Tan, Yun Jung Lee, Kyung Woo Cho, Dae Gill Kang, Ho Sub Lee
OBJECTIVE: To investigate whether the methanol extract of Berberis amurensis Rupr. (BAR) augments penile erection using in vitro and in vivo experiments. METHODS: The ex vivo study used corpus cavernosum strips prepared from adult male New Zealand White rabbits. In in vivo studies for intracavernous pressure (ICP), blood pressure, mean arterial pressure (MAP), and increase of peak ICP were continuously monitored during electrical stimulation of Sprague-Dawley rats...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29319007/calpain-inhibition-improves-erectile-function-in-diabetic-mice-via-upregulating-endothelial-nitric-oxide-synthase-expression-and-reducing-apoptosis
#8
Hao Li, Li-Ping Chen, Tao Wang, Shao-Gang Wang, Ji-Hong Liu
Calpain activation contributes to hyperglycemia-induced endothelial dysfunction and apoptosis. This study was designed to investigate the role of calpain inhibition in improving diabetic erectile dysfunction (ED) in mice. Thirty-eight-week-old male C57BL/6J mice were divided into three groups: (1) nondiabetic control group, (2) diabetic mice + vehicle group, and (3) diabetic mice + MDL28170 (an inhibitor of calpain) group. Type 1 diabetes was induced by intraperitoneal injection of streptozotocin at 60 mg kg-1 body weight for 5 consecutive days...
January 9, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29298510/structural-activity-relationship-of-ginsenosides-from-steamed-ginseng-in-the-treatment-of-erectile-dysfunction
#9
Ang Ying, Qing-Tao Yu, Li Guo, Wen-Song Zhang, Jin-Feng Liu, Yun Li, Hong Song, Ping Li, Lian-Wen Qi, Ya-Zhong Ge, E-Hu Liu, Qun Liu
Ginseng has been reported to have diverse pharmacological effects. One of the therapeutic claims for ginseng is to enhance sexual function. Ginsenosides are considered as the major active constituents. A steaming process can alter the ginsenoside profile of ginseng products. The structure-function relationship of ginsenosides in the treatment of erectile dysfunction (ED) has not been investigated yet. In this work, 15 different processed ginsengs are produced by steaming, and 13 major ginsensosides are quantified by liquid chromatography with UV detection, including Rg1, Re, Rf, Rb1, Rc, Rb2, Rf, Rk3, Rh4, 20S-Rg3, 20R-Rg3, Rk1, and Rg5...
January 3, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29285284/activation-of-the-ngf-trka-signaling-pathway-attenuates-diabetic-erectile-dysfunction
#10
Yi Hou, Linpei Jia, Ying Zhang, Wei Ji, Hai Li
Erectile dysfunction (ED) is a common complication of diabetes mellitus (DM). The exact role of the NGF/TrkA signaling pathway in the pathogenesis of diabetic ED is largely unknown. In the present study, we investigated the role of the NGF/TrkA signaling pathway in Sprague-Dawley rats with diabetic ED. Animals were divided into 2 groups: the normal group and the DM ED model group. The model group included the blank subgroup, the negative control (NC) subgroup, the TrkA subgroup and the TrkA + NGF subgroup. Erectile function, intracavernous pressure (ICP) and mean arterial pressure were measured respectively...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29278308/effect-of-lysyl-oxidase-lox-on-corpus-cavernous-fibrosis-caused-by-ischaemic-priapism
#11
Liang Gao, Changjing Wu, Fudong Fu, Xuanhe You, Xue Ma, Feng Qin, Tao Li, Run Wang, Jiuhong Yuan
Penile fibrosis caused by ischemic priapism (IP) adversely affects patients' erectile function. We explored the role of lysyl oxidase (LOX) in rat and human penes after ischemic priapism (IP) to verify the effects of anti-LOX in relieving penile fibrosis and preventing erectile dysfunction caused by IP in rats. Seventy-two rats were randomly divided into six groups: control group, control + β-aminopropionitrile (BAPN) group, 9 hrs group, 9 hrs + BAPN group, 24 hrs group, and 24 hrs + BAPN group. β-aminopropionitrile (BAPN), a specific inhibitor of LOX, was administered in the drinking water...
December 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29273785/construction-of-engineered-corpus-cavernosum-with-primary-mesenchymal-stem-cells-in-vitro
#12
Xiaoshuai Xie, Xiaohang Du, Kailin Li, Yuan Chen, Yong Guan, Xiaofei Zhao, Guangzhu Niu, Yun Luan, Denglu Zhang, Chao Sun, Guanghui Cheng, Jue Wang, Qian Xin, Aibing Xue, Peng Wang, Feng Kong, Xiaoli Liu, Hongwei Wang, Yuqiang Liu, Chuan Tian, Mingzhen Yuan, Shuangde Liu, Shengtian Zhao
Various methods have been used to reconstruct the penis. The objective of this study was to investigate the feasibility of constructing engineered corpus cavernosum with primary mesenchymal stem cells (MSCs) in a rabbit model in vitro. Acellular corporal matrices (ACMs) were obtained from adult rabbit penile tissues through an established decellularization procedure. MSCs were separated, purified, and then seeded on ACMs to construct engineered corpus cavernosum. The seeded ACMs were subsequently cultured in an incubator for 14 days...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29260891/tnf-%C3%AE-antagonism-with-etanercept-enhances-penile-nos-expression-cavernosal-reactivity-and-testosterone-levels-in-aged-rats
#13
Tuğçe Demirtaş Şahin, Yusufhan Yazir, Tijen Utkan, Gulcin Gacar, Selenay Furat Rençber, Semil Selcen Gocmez
Erectile dysfunction (ED) has been reported to be associated with inflammation. This study investigated the effects of tumor necrosis factor alpha (TNF-α) inhibitor etanercept on penile neuronal nitric oxide synthase (nNOS) and endothelial nitric oxide synthase (eNOS) expressions, testosterone concentrations, neurogenic and endothelium-dependent relaxations of corpus cavernosum (CC), and circulating and cavernosal levels of inflammatory markers in aged rats. Animals were separated into control, aged, and etanercept-treated aged groups...
December 20, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29198509/testosterone-deficiency-causes-endothelial-dysfunction-via-elevation-of-asymmetric-dimethylarginine-and-oxidative-stress-in-castrated-rats
#14
Tomoya Kataoka, Yuji Hotta, Yasuhiro Maeda, Kazunori Kimura
BACKGROUND: Testosterone is believed to mediate the penile erectile response by producing adequate nitric oxide; therefore, testosterone deficiency results in erectile dysfunction through decreased nitric oxide bioavailability. However, the mechanisms underlying endothelial dysfunction in testosterone deficiency remain unclear. AIM: To investigate the mechanism of endothelial dysfunction in a rat model of testosterone deficiency. METHODS: Rats were distributed into 3 groups: castrated (Cast), castrated and supplemented with testosterone (Cast + T), and sham (Sham)...
December 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29191197/in-vitro-and-in-vivo-aphrodisiac-properties-of-the-seed-extract-from-allium-tuberosum-on-corpus-cavernosum-smooth-muscle-relaxation-and-sexual-behavior-parameters-in-male-wistar-rats
#15
Xingli Tang, Opeyemi J Olatunji, Yifeng Zhou, Xilin Hou
BACKGROUND: Allium tuberosum is a well-known spice as well as a herb in traditional Chinese medicine, used for increasing libido and treating erectile dysfunction. However, not many studies have been done to evaluate the sexual enhancing properties of A. tuberosum. The aim of this study was to evaluate the aphrodisiac and vasorelaxant properties of A. tuberosum on corpus cavernosum smooth muscle (CCSM) as well as checking the effect on enhancing male rat sexual behavior, libido, potency as well as its spermatogenic properties...
December 1, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29174980/pdgf-mediated-pi3k-akt-%C3%AE-catenin-signaling-regulates-gap-junctions-in-corpus-cavernosum-smooth-muscle-cells
#16
Xiang Zhang, Fan Zhao, Jian-Feng Zhao, Hui-Ying Fu, Xiao-Jun Huang, Bo-Dong Lv
Erectile dysfunction (ED) is the most common sexual disorder that men report to healthcare providers. Gap junctions (GJs) are thought to be responsible for synchronous shrinkage of corpus cavernosum smooth muscle cells (CCSMCs), and play thus an important role in the maintenance of an erection. Hypoxia has been suggested as a pathological mechanism underlying ED. Here we demonstrate that hypoxia increased the expression of platelet-derived growth factor (PDGF) and the main GJ component connexin (Cx)43 in CCSMCs...
November 22, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29170014/-treatment-by-stem-cell-therapy-of-erectile-dysfunction-of-diabetic-origin-state-of-the-art
#17
R El Osta, V Decot, D Bensoussan, J F Stoltz, P Eschwege, J Hubert
PURPOSE: Review of various publications on stem cell therapy to treat erectile dysfunction of diabetic origin. MATERIAL AND METHODS: Bibliographic search in PUBMED performed using the keywords cell therapy strain/erectile dysfunction associated with diabetes. Among the 51 articles obtained from the PUBMED research, we selected 16 articles for their specificity of studying erectile dysfunction (DE) related to diabetes. RESULTS: Different types of stem cells have been studied: adipose derived mesenchymal stem cells/bone marrow derived mesenchymal stem cells as well as progenitor endothelial cells...
November 20, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/29164835/penile-erection-induced-by-scoparone-from-artemisia-capillaris-through-the-nitric-oxide-cyclic-guanosine-monophosphate-signaling-pathway
#18
Bo Ram Choi, Hye Kyung Kim, Jong Kwan Park
PURPOSE: The objective of this study was to evaluate the relaxant effect of scoparone from Artemisia capillaris on rabbit penile corpus cavernosum smooth muscle (PCCSM) and to elucidate the mechanism of action of scoparone for the treatment of erectile dysfunction (ED). MATERIALS AND METHODS: PCCSM that had been precontracted with phenylephrine was treated with 3 Artemisia herbs (A. princeps, A. capillaris, and A. iwayomogi) and 3 fractions (n-hexane, ethyl acetate, and n-butanol) with different concentrations (0...
November 21, 2017: World Journal of Men's Health
https://www.readbyqxmd.com/read/29164834/effects-of-next-generation-low-energy-extracorporeal-shockwave-therapy-on-erectile-dysfunction-in-an-animal-model-of-diabetes
#19
Hyun Cheol Jeong, Seung Hwan Jeon, Zhu Guan Qun, Kang Sup Kim, Sae Woong Choi, Fahad Bashraheel, Woong Jin Bae, Su Jin Kim, Hyuk Jin Cho, U Syn Ha, Sung Hoo Hong, Ji Youl Lee, Du Geon Moon, Sae Woong Kim
PURPOSE: Gene therapy, stem cell therapy, and low-energy extracorporeal shockwave therapy (ESWT) have been investigated as treatments for refractory erectile dysfunction (ED), but inconclusive evidence has been obtained. We investigated the effect of a next-generation electromagnetic cylinder ESWT device on an animal model of ED. MATERIALS AND METHODS: Diabetes mellitus (DM)-induced rats were divided into 3 groups: group 1, control; group 2, DM; and group 3, DM+ESWT...
November 20, 2017: World Journal of Men's Health
https://www.readbyqxmd.com/read/29151107/repeated-micro-trauma-of-the-penile-tunica-albuginea-a-new-animal-model-of-peyronie-s-disease
#20
Hesong Jiang, Qingqiang Gao, Xiaoyan Che, Leilei Zhu, Zheng Zhang, Yun Chen, Yutian Dai
OBJECTIVES: To compare effects of repairing injured tunica albuginea (PTA) of rat penis by single or repeated local injections of chlorhexidine ethanol (ChE) into the PTA and to establish a new animal model of Peyronie's disease (PD). MATERIALS AND METHODS: Forty-two rats were divided into 7 groups. Rats either served as the normal control group with 1-5 injections of 0.9% saline or they received a single injection, 2, 3, 4, or 5 injections of ChE (0.1% chlorhexidine gluconate plus 15% ethanol dissolved in saline); rats in the positive control group were injected with TGF-β1...
November 18, 2017: Urologia Internationalis
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