Results 71 to 80 of about 150,553 (148)

Protective effect and mechanisms of marine antifreeze protein product on sperm cryodamage in livestock

open access: yes浙江大学学报. 农业与生命科学版, 2020
Antifreeze proteins (AFPs), a class of antifreeze substances, were initially found to bind to ice crystals in vivo, thereby contributing to inhibition of the growth of ice crystals that enabled polar fish to survive at the temperatures below freezing ...
HENG Nuo   +8 more
doaj   +1 more source

Lowering Sperm Dose Rates in Frozen Semen for Bovine Artificial Breeding [PDF]

open access: yes, 2007
The New Zealand Dairy industry relies on artificial breeding to produce high genetic merit replacement stock. Proven bull semen is extended and preserved as either ambient temperature product or as frozen doses.
Pitt, Colin John
core  

The Impact of Common Medications on Male Fertility: An Updated Systematic Review

open access: yesAndrology, EarlyView.
ABSTRACT Background Compared with those of cytotoxic treatments, the potential effects of common medications on the fertility of men trying to conceive currently or planning to conceive in the future are less well described. The use of common medications may modify the gonadotropic axis, spermatogenesis, and epididymal maturation or alter male ...
Lina Jebli   +7 more
wiley   +1 more source

Utilization of Honey as an Extender Material in Cryopreservation of Selincah Fish Sperm (Belontia hasselti)

open access: yesQuagga
Problems often encountered in the breeding of selincah fish are that the maturation period of the male and female parent fish sometimes does not occur simultaneously.
Danang Yonarta   +3 more
doaj   +1 more source

A CCNA1 Missense Variant Associated With Chromatid Non‐Disjunction in Abnormal‐Headed Sperm and Male Infertility

open access: yesAndrology, EarlyView.
ABSTRACT Background Macrozoospermia is a rare form of teratozoospermia characterized by tetraploids, large‐headed spermatozoa with multiple flagella, usually caused by bi‐allelic AURKC mutations. The etiology of atypical phenotypes with a lower proportion of large headed spermatozoa and single flagella however often remains unresolved.
Aurore Perrin   +14 more
wiley   +1 more source

Antioxidant supplementation of cryopreservation extenders improves post-thaw sperm viability in the red-crowned toadlet, Pseudophryne australis

open access: yesFrontiers in Amphibian and Reptile Science
Amphibians are currently experiencing the highest extinction rate of any vertebrate class. Gamete cryopreservation and the biobanking of genetic resources are important conservation tools to safeguard the genetic diversity of imperiled species.
Morgan S. Howard   +4 more
doaj   +1 more source

Mouse Sperm Cryopreservation Using Cryoprotectant Containing l-Glutamine

open access: yes, 2018
Efforts to advance sperm cryopreservation are ongoing and include modifications in the cryoprotective agents. The addition of l-glutamine maintains post-thaw motility and reduces plasma membrane damage to sperm.
Toru Takeo, Naomi Nakagata
core   +1 more source

Cryopreservation Disrupts TRIM21‐Mediated AKAP3 Ubiquitination and Triggers Stress Granule Formation in Human Sperm

open access: yesAndrology, EarlyView.
ABSTRACT Background Sperm cryopreservation causes cryodamage, but the roles of posttranslational modifications (PTMs) and stress granules (SGs) in this process remain unclear. Objectives To investigate the molecular mechanism of cryodamage via the TRIM21–AKAP3 axis, PTMs, and SGs.
Yan Wang   +9 more
wiley   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

Effects of the cryopreservation process on dog sperm integrity

open access: yes, 2020
Sperm cryopreservation has become an indispensable tool in reproductive biology. However, frozen/thawed semen has a short lifespan due to loss of sperm cell integrity.
Souza, Fabiana Ferreira de [UNESP]   +6 more
core   +1 more source

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