The objective of this study was to optimize cryopreservation of sperm from Mauritian cynomolgus macaques (MCM) in defined conditions. Sperm viability and motility were compared between sperm cryopreserved in chemically-defined freezing media with variable osmolarity and the presence of either ethylene glycol or glycerol. The highest percentage viability (after freeze-thaw) was seen in sperm samples that were cryopreserved in medium with an osmolarity of 310 mOsm, while higher osmolarities markedly decreased sperm viability. Ethylene glycol and glycerol at concentrations of 4.6% and 5%, respectively, preserved sperm viability to an equivalent degree. Although higher motility rates and higher straight-line velocities were observed in sperm samples frozen in glycerol compared with ethylene glycol, these differences were not statistically significant. Thawed sperm frozen in defined conditions with glycerol were capable of fertilizing MCM oocytes in vitro, with development to the blastocyst stage. The protocol described here provides an effective method for cryopreservation of sperm to facilitate subsequent in vitro fertilization and genome editing of embryos in MCM species.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7604693 | PMC |
| http://dx.doi.org/10.30802/AALAS-JAALAS-20-000059 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Protective effects of Mito-TEMPO on ischemia-reperfusion injury in a mouse testicular torsion and detorsion model.
Vet Res Forum
December 2024
Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Testicular ischemia-reperfusion (I/R) injury during testicular torsion is strongly influenced by oxidative stress caused by excessive accumulation of unscavenged reactive oxygen species. This study aimed to investigate the effects of intra-peritoneal administration of Mito-TEMPO (MT) on I/R injury in testicular torsion/detorsion (T/D) in mice. Forty-two male mice were divided into seven groups including 1 control and 6 treatment groups (360° T/D, 720° T/D, 360° T/D + 0.
View Article and Find Full Text PDFViability of guinea pig () spermatozoa diluted in Tris-buffer extenders stored at 5.00 ˚C.
Vet Res Forum
December 2024
Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
The cooling procedure markedly diminishes the quality of guinea pig () sperms, primarily because their membranes are highly susceptible to this process. This susceptibility triggers the generation of reactive oxygen species and free radicals, ultimately leading to lipid peroxidation in the sperm membrane. Surprisingly, there has been a lack of research on the use of Tris-based extenders to safeguard guinea pig sperm under refrigeration conditions.
View Article and Find Full Text PDFThe involvements of intracellular basal calcium and membrane potential in para-phenylenediamine-impaired sperm function.
Transl Androl Urol
December 2024
Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, China.
Background: Para-phenylenediamine (PPD) is a crystalline solid that belongs to the aromatic amine group, widely used in the manufacturing of various dyes. PPD exhibits toxic effects on female hormone stability, ovarian function, and embryo development. Although studies have shown that PPD exposure can damage oocyte quality in female mice, research on its effects on male reproductive capability, particularly on human sperm quality and function, is limited.
View Article and Find Full Text PDFTesticular cryopreservation: From technical aspects to practical applications.
Histol Histopathol
January 2025
Laboratory of Animal Germplasm Conservation, Federal Rural University of the Semiarid Region - UFERSA, Mossoró, RN, Brazil.
Testicular cryopreservation has been highlighted as a promising alternative for preserving male fertility and can be applied to restore spermatogenesis in prepubertal individuals or cancer patients, preserve biologically valuable genotypes, and in studies on reproductive physiology or toxicity of various substances. This review presents an analysis of the technical aspects and applications of testicular cryopreservation, examining the contributions of important studies in this area and discussing the different factors that can impact the efficiency of the technique. Testicular fragments can be obtained from living or dead individuals, at any age and reproductive stage, through orchiectomy or biopsy.
View Article and Find Full Text PDFCryoprotective Property of Ethylene Glycol in Regard to the Quality and Mitochondrial Status of Frozen Indian Red Jungle Fowl () Semen.
Biopreserv Biobank
January 2025
Department of Zoology, Wildlife and Fisheries, Pir Mehr Ali Shah Arid Agriculture University of Rawalpindi, Rawalpindi, Pakistan.
Ethylene glycol (EG) has been employed as a cryoprotectant for many years in mammalian semen cryopreservation but not assessed for birds except for its recently illustrated beneficial effects on commercial chicken lines. The Indian red jungle fowl is facing trouble in its native range due to human encroachment. Therefore, the present study was designed to elucidate the cryoprotective effect of different EG concentrations (5%, 10%, 15%, and 20%) on frozen Indian red jungle fowl semen.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!