Results 131 to 140 of about 13,008 (277)

Geographical Variation in Thermal Adaptation of the Asiatic Toad (Bufo gargarizans)

open access: yesIntegrative Zoology, EarlyView.
Northern and southern populations of Bufo gargarizans exhibit coordinated divergence in thermal preference, resting metabolic rate, and TRPM4 temperature sensitivity along a climatic gradient. ABSTRACT Thermal adaptation in animals can manifest in multiple dimensions, yet few studies have integrated behavioral, physiological, and molecular perspectives
Longcheng Fan, Yonghua Wu
wiley   +1 more source

Microrheology of the cumulus-oocyte matrix using optical tweezers

open access: yesJPhys Photonics
Optical tweezers have emerged as a powerful, versatile approach for a range of studies in cellular and molecular biology. A particular highlight has been its use for microrheology measurements in miniscule sample volumes.
C A Campugan   +10 more
doaj   +1 more source

Short communication. In vitro embryo production can be modified by the previous ovarian response to a superovulatory treatment in sheep

open access: yesSpanish Journal of Agricultural Research, 2013
Thirty-two ewes were used to study how the ovarian response to a superovulatory treatment determines quality of oocytes recovered from ovaries after embryo collection, and their developmental capacity after in vitro maturation (IVM) and fertilization ...
F. Forcada   +5 more
doaj   +1 more source

The use of deidentified organ donor testes for research

open access: yesAndrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova   +4 more
wiley   +1 more source

Research on feline in vitro maturation and the cell cycle [PDF]

open access: yes, 2013
Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the ...
Cox, Ashley Michelle
core  

Role of Protein Kinase C on bovine oocyte maturation [PDF]

open access: yes, 2012
A qualidade do oócito é um fator limitante na fertilidade das fêmeas e reflete seu intrínseco potencial ao desenvolvimento embrionário subsequente. As alterações moleculares e bioquímicas no processo de maturação dos oócitos são necessárias para permitir
Everton Lopes, Lopes, Everton
core   +1 more source

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

open access: yesAndrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu   +8 more
wiley   +1 more source

Impact of Sorting and Catch Media on Porcine Sperm Motility, Capacitation, and Viability

open access: yesAndrology, EarlyView.
ABSTRACT Background Fluorescence‐activated cell sorting (FACS) has emerged as a powerful tool for selecting spermatozoa of a desired population of fluorescent biomarkers, offering potential applications in reproductive biology and agriculture. However, concerns remain regarding sorting‐induced physiological alterations that could compromise spermatozoa
Tyler Weide, Juan Steibel, Karl Kerns
wiley   +1 more source

Applying Modified 2000 In Vitro Technique for Maturation of B. Indicus Oocytes by Using Plastic Test Tubes Supplemented with M-Pbs Medium

open access: yesBasrah Journal of Veterinary Research
This project was conducted in Health and Medical Technical College's laboratories of Al-Forat Al-Awsat Technical University in 2021. The study was dealt 370 oocytes collected from 19 three years old cows by using dissecting process. The gathered oocytes were transferred hastily to a test tubes contains m-PBS prelude for incubation by modified in vitro ...
Abdul-Samad Uleiwi Hassan, jian ibraheem
openaire   +2 more sources

Testicular SIRT1 Loss Reveals an Aging‐Like Proteomic Landscape and Precipitates Reproductive Deterioration

open access: yesAndrology, EarlyView.
ABSTRACT Background Advanced paternal age is associated with reduced male fertility and testicular dysfunction. Among the molecular regulators involved in aging, SIRT1, a NAD+‐dependent deacetylase, plays a pivotal role in maintaining oxidative balance and cellular homeostasis.
María Iniesta‐Cuerda   +7 more
wiley   +1 more source

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