This study aimed to investigate the protective effect of tadalafil on reactive oxygen species induced by a hyperoxia model in rats, both in terms of enzymes such as superoxide dismutase (SOD) and nitric oxide (NO), and its pathological effects on the corpus cavernosum. Overall, 24 rats were divided into three groups. The control group (eight rats) was not exposed to any intervention. The second group (eight rats), was exposed to hyperoxia in a hyperoxia cabinet for 8 h a day for 10 days. The third group (eight rats) was exposed to hyperoxia the same as in the second group, tadalafil at a dose of 10 mg/kg was given orally as a dissolved form in water in the amount of 10-12 ml/100 g/day to the rats placed in separate cages having removed from the hyperoxia cabin. SOD levels differ enough to create a difference, but there was no significant difference in terms of NO levels. The SOD level was highest in hyperoxia conditions and lowest in the group given tadalafil. While corpus cavernosum hyperemia was found to be higher statistically in the experimental groups than in the control group, we found that the severity of hyperemia was less in the group given tadalafil. The corpus cavernosum was found to be statistically more dilated in the experimental groups than in the control group. We determined that hyperoxia status increased the level of SOD and this level decreased with tadalafil administration, which would make a statistical difference.
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http://dx.doi.org/10.1111/and.14494 | DOI Listing |
Am J Dermatopathol
February 2025
Clinic of Dermatology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy.
Angiosarcoma of the penis is an exceptionally rare mesenchymal tumor, with only about 30 cases documented in the literature. Because of its rarity and the often nonspecific clinical presentation, histopathological examination plays a critical role in accurate diagnosis. Angiosarcoma of the penis typically arises in the corpus cavernosum but has also been reported in the glans and urethra, often presenting with metastases.
View Article and Find Full Text PDFSex Med
December 2024
Department of Clinical Investigation, Madigan Army Medical Center, Tacoma, Washington 98431, United States.
Background: Pelvic trauma can have long-lasting debilitating effects, including severe erectile dysfunction (ED) in men. While there are effective treatments for ED, these treat the symptoms not the cause. Those who suffer from an acute traumatic injury to the neurovascular supply of penis, may benefit from regenerative therapy.
View Article and Find Full Text PDFAm J Physiol Cell Physiol
January 2025
Smooth Muscle Research Centre, Dundalk Institute of Technology, Dundalk, Ireland.
Adrenergic stimulation induces contractions in the corpus cavernosum smooth muscle (CCSM) that are important in maintaining penile flaccidity. The aim of this study was to investigate the role of K7 channels in regulating contractions and their underlying Ca signals in mouse CCSM. Quantitative PCR revealed transcriptional expression of KCNQ1 and KCNQ3-5 genes in whole CCSM, with KCNQ5 as the most highly transcribed K7 encoding gene.
View Article and Find Full Text PDFWorld J Urol
January 2025
Department of Urology, Shanghai Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, 200233, China.
Purpose: To determine the clinical effects of urethral suspension-assisted urethral anastomosis on complex long-segment posterior urethral stricture and describe the technical aspects of this procedure.
Materials And Methods: The clinical data for 24 patients who underwent urethral suspension-assisted urethral anastomosis for complex long-segment posterior urethral stricture between March 2021 and March 2024 were retrospectively analyzed. The surgical procedure comprises the following four steps: creation of an inverted Y-shaped incision in the perineum; mobilization of the urethra up to the penile-scrotal junction followed by dissection and separation of the septum of the corpus cavernosum; separation of the inferior pubic symphysis, excising a portion of the inferior pubic symphysis bone tissue and thoroughly clearing the scar tissue surrounding the proximal urethra; and suturing and suspension of the proximal urethra and surrounding tissues at the 2, 5, 7, and 10 o'clock positions, ensuring complete exposure of the proximal urethral mucosa and tension-free anastomosis between the proximal and distal urethra.
Sex Med
December 2024
Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, FL 32306, United States.
Background: Erectile dysfunction is a condition with a rapidly increasing prevalence globally with a strong correlation to the increase in obesity and cardiovascular disease rates.
Aim: The aim of the current study is to investigate the potential role of tubacin, a histone deacetylase 6 (HDAC6) inhibitor, in restoring erectile function in a hypercholesterolemia-induced endothelial dysfunction model.
Methods: Thirty-nine male C57Bl/6 J mice were divided into 3 groups.
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