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http://dx.doi.org/10.1111/all.70029 | DOI Listing |
Cryobiology
September 2025
Laboratory of Teaching and Research in Pathology of Reproduction, Center of Biotechnology in Animal Reproduction, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, SP, Brazil. Electronic address:
Sperm capacitation is a critical process for successful fertilization, involving multiple regulated cellular changes. On the other hand, cryopreservation induces membrane changes that can mimic capacitation, potentially leading to misinterpretation of sperm function. Distinguishing true capacitation from cryoinjury remains challenging, as both share surface markers despite involving distinct mechanisms and impacts on fertilization.
View Article and Find Full Text PDFJ Therm Biol
August 2025
Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada; Innovation and Portfolio Management, Canadian Blood Services, Edmonton, AB, Canada. Electronic address:
Extreme temperature fluctuations during routine handling and shipping of cryopreserved cell products significantly compromise product quality in ways that extend beyond the duration and peak temperature of the fluctuation. The type of cryoprotectant used and the initial ice nucleation temperature influence ice crystal growth during rewarming events, in turn impacting cell survival. Using a cryomicroscope together with temperature profiles recorded in cord-blood units, ice crystal growth was tracked through five transient-warming events (TWEs) that peaked at -30 °C, -20 °C, or -10 °C.
View Article and Find Full Text PDFZhonghua Nan Ke Xue
August 2025
The Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, China.
Objective: The aim of this study is to explore the influencing factors of fertility preservation decision-making in testicular cancer patient and provide a basis for clinical decision.
Methods: A descriptive qualitative study was conducted using purposive sampling in 18 testicular cancer patients. Semi-structured interviews were performed, and data were analyzed through content analysis.
Reprod Domest Anim
September 2025
Institute for Reproduction of Farm Animals Schönow, Bernau, Germany.
Extended bull sperm for artificial insemination is routinely cryopreserved and stored in liquid nitrogen (LN, -196°C) tanks to maintain semen quality for extended periods. Bacterial contamination impairs sperm quality; however, hygienic conditions of LN tanks are monitored insufficiently. This study aimed to assess the hygienic situation in routinely used LN tanks under field conditions.
View Article and Find Full Text PDFReprod Domest Anim
September 2025
School of Agriculture, Tarbiat Modares University, Tehran, Iran.
This experiment evaluated the effects of increasing MitoQ concentrations in semen extender on post-thaw quality of Holstein bull sperm, including motility, membrane integrity, antioxidant status and viability. Semen samples were collected, pooled and diluted with extender containing 0 (control), 5, 50, 500 and 1000 nM of MitoQ and frozen through the standard procedure. An increase in MitoQ supplementation positively influenced total and progressive motility, as well as average path velocity; however, these effects were not statistically significant until the concentration reached 50 nM.
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