Background: As a new ultrasound technology, 2-dimensional shear wave elastography (2D-SWE) can evaluate the elastic characteristics of penile tissue. However, no studies have reported the main factors affecting the shear wave elastic quantitative measurement (SWQ) in penile tissue.
Objectives: To analyze the main factors affecting the SWQ reflecting the elastic characteristics of penile tissue by 2D-SWE.
Methods: Twenty healthy male Sprague-Dawley rats (5-60 weeks old) were selected for this study. We performed the 2D-SWE examination on the penis using the Aixplorer ultrasound system, with SWQ as the measurement index. We performed penile immunohistochemistry analysis with the positive area proportion (PAP) of alpha-smooth muscle actin (PAP) and type III collagen fiber (PAP) as the outcomes. Then, we conducted multiple linear regression analysis to explore the correlation of SWQ with PAP and PAP and established the regression equation.
Results: The multiple linear regression analysis showed that the linear regression equation (SWQ = 10.376 - 0.05 PAP - 0.07 PAP) was statistically significant ( = 21.153, < 0.001). The content of smooth muscle cells (SMCs) and collagen fibers was negatively correlated with SWQ, affecting 42.6% of the total variation in SWQ ( = 0.426).
Conclusions: SMCs and collagen fibers are the main factors affecting the SWQ value of penile tissue and the primary tissue components determining the SWQ when using 2D-SWE to quantitatively evaluate the elastic characteristics of penile tissue.
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http://dx.doi.org/10.2478/abm-2023-0040 | DOI Listing |
Front Biosci (Elite Ed)
December 2024
Institute of Biochemistry and Physiology of Plants and Microorganisms - Subdivision of the Federal State Budgetary Research Institution Saratov Federal Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 Saratov, Russia.
Since infections associated with microbial communities threaten human health, research is increasingly focusing on the development of biofilms and strategies to combat them. Bacterial communities may include bacteria of one or several species. Therefore, examining all the microbes and identifying individual community bacteria responsible for the infectious process is important.
View Article and Find Full Text PDFAnn Anat
December 2024
Department of Urology, Graduate School of Medicine and Dentistry, Hiroshima University School of Medicine, Hiroshima, Japan.
Background: There is little information about when and how cavernosal sinusoidal endothelia develop in the external genitalia of fetuses.
Methods: We examined histological sections of erectile tissue in 37 human fetuses (25 males and 12 females) whose gestational age (GA) ranged from 8 to 40 weeks.
Results: The sinusoidal lumen was filled with blood in the glans of the penis and clitoris at a GA of 10 to 11 weeks, and in the corpus spongiosum at a GA of 15 to 16 weeks.
BMC Urol
December 2024
Pediatric Surgery Dept, Al-Azhar university, Cairo, Egypt.
Background: Complications after male circumcision are numerous and may be presented as an adhesion between the glans penis and the preputial remnants, these adhesions may acquire different forms and troublesome the affected children.
Patients And Methods: This is a retrospective study of 95 consecutive children of presumed glanular-preputial adhesions referred for correction of circumcision. They were assessed and classified as having either an early preputial adhesion or a well-formed skin bridge into 2 groups; group (A) who have a simple adhesion that was resolved through a conservative preputial adhesiolysis while those in the group (B) had a well-formed skin bridge, which deserves surgical correction.
BMC Urol
December 2024
Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China.
Background: Current treatments for penile erectile structures reconstruction are limited and remain a great challenge in clinical practice. Tissue engineering techniques using different seed cells and scaffolds to construct a neo-tissue open promising avenues for penile erectile structures repair and replacement and show great promise in the restoration of: structure, mechanical property, and function which matches the original tissue.
Methods: A comprehensive literature review was conducted by accessing the NCBI PubMed, Cochrane, and Google Scholar databases from January 1, 1990, to January, 1, 2022 using the search terms "Tissue engineering, Corpus cavernosum (CC), Tunica albuginea (TA), Acellular Matrix, Penile Reconstruction".
Infect Disord Drug Targets
December 2024
Department of Pharmaceutical Sciences, Bengal College of Pharmaceutical Sciences & Research, Durgapur, 713212, West Bengal, India.
SARS-CoV-2, also called coronavirus causes SARS-CoV-2 or severe acute respir-atory syndrome, a highly transmissible disease that has rapidly spread worldwide, straining healthcare systems and leading to a substantial number of fatalities. Interestingly, SARS-CoV-2 has revealed a gender difference, with males dying at a greater rate and with more severe cases than women. It's worth noting that the male reproductive system might be par-ticularly susceptible to damage during periods of moderate to severe sickness, which has been linked to cases of orchitis and erectile dysfunction.
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