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Direct-to-consumer semen analysis products: Content, accountability, and adherence to clinical guidelines.
Andrology
January 2025
Department of Urology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Background: Direct-to-consumer (DTC) semen analysis (SA) products obviate barriers that deter men from clinic testing and have made strides in providing higher quality data. However, it is unclear how well these products adhere to the 2021 WHO guidelines on examination and processing of human spermatozoa as they pertain to the evaluation of male fertility.
Objective: We investigate the content and adherence to clinical guidelines associated with consumer-facing information on DTC analysis products.
Short and long-term effects of experimental varicocele.
Andrology
January 2025
Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil.
Background: Varicocele is associated with a progressive decrease in male fertile potential, but it has yet to be determined if the duration of varicocele is associated with altered sperm functional quality.
Objectives: This experimental study investigated the time-dependent effects of varicocele on spermatogenesis, sperm parameters, and sperm functional traits.
Materials And Methods: Thirty-five mature male Wistar rats (200 ± 25 g) were included.
Graphene oxide and silymarin combination: A novel approach to improving post-cryopreservation quality of ram sperm.
Cryobiology
January 2025
Department of Clinical Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran; Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran. Electronic address:
Graphene oxide (GO) has been extensively studied for its diverse biomedical applications, including drug delivery, imaging, and tissue engineering. Silymarin, as a flavonoid complex derived from the milk thistle plant, has recently shown potential health benefits, particularly concerning reproductive health. This study aims to evaluate the effects of GO and silymarin supplementation, both individually and in combination, on the characteristics of frozen-thawed ram sperm.
View Article and Find Full Text PDFInfluence of antifreeze protein III on canine sperm cryopreservation.
Theriogenology
January 2025
Veterinary Clinic for Reproductive Medicine and Neonatology, Justus Liebig-University of Giessen, Germany.
Sperm cryopreservation is crucial in reproductive biotechnology; however, the longevity of frozen and thawed semen is limited by the deterioration of sperm cell integrity. This study aimed to examine the effects of adding antifreeze protein III (AFP III) to the diluent, using samples from eight healthy mature dogs. The ejaculates were divided into aliquots and diluted with a standard Tris-fructose-egg yolk extender containing AFP III at concentrations of 0, 0.
View Article and Find Full Text PDFEffect of age-associated oxidative stress on sperm viability, acrosomal integrity and sperm apoptosis and DNA fragmentation in Sahiwal breeding bulls.
Vet Res Commun
January 2025
ARGO, ICAR- National Dairy Research Institute, Deemed University, Karnal, India.
Sperm motility is the prime functional attribute for semen quality and fertility of the bull. However, the bull's age directly affects the semen quality, and the bull's fertility and productive life decline with age. Even though research on age has been conducted in the past, it is still unclear how old a bull should be maintained at artificial insemination centers.
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