Results 101 to 110 of about 25,915 (289)

Understanding early reproductive failure in turtles and tortoises

open access: yesAnimal Conservation, EarlyView.
Turtles and tortoises are facing a global extinction crisis, and hatching failure is an increasing problem. In this paper, we synthesize the current literature on fertilization and hatching success in turtles and tortoises, test innovative tools for monitoring fertility and embryo survival rates and describe how these approaches can be adopted by ...
A. Lavigne   +5 more
wiley   +1 more source

Fertilization Narratives In The Art Of Gustav Klimt, Diego Rivera And Frida Kahlo: Repression, Domination And Eros Among Cells [PDF]

open access: yes, 2011
Fertilization narratives are powerful biological stories that can be used for social ends, and 20th-century artists have used fertilization-based imagery to convey political and social ideas.
Brauckmann, S., Gilbert, Scott F.
core   +2 more sources

Follicular Oocytes Better Support Development in Rabbit Cloning Than Oviductal Oocytes [PDF]

open access: yes, 2011
This study was conducted to determine the effect of rabbit oocytes collected from ovaries or oviducts on the developmental potential of nuclear transplant embryos.
Chang, Wei-Fang   +14 more
core   +1 more source

Deep learning classification method for boar sperm morphology analysis

open access: yesAndrology, EarlyView.
Abstract Background Boar semen quality emphasizes three major criteria: sperm concentration, motility, and morphology. Methods to analyze concentration and motility quickly and objectively readily exist, but few exist for analyzing morphology outside of subjective manual counting.
Alexandra Keller   +3 more
wiley   +1 more source

Studies on the sperm reservoir of the pig oviduct [PDF]

open access: yes, 2003
During sperm transport in the female pig a proportion of spermatozoa are arrested, often for 24 h or more, in a particular segment of the utero-tubal junction (UTJ) and the adjacent tubal isthmus, where a sperm reservoir (SR) is built up.
Tienthai, Paisan
core  

Ascorbic acid 2‐glucoside improves survival, quality, and fertility of frozen‐thawed C57Bl/6J and C57Bl/6N mouse spermatozoa

open access: yesAndrology, EarlyView.
Abstract Background Ascorbic acid 2‐glucoside (AA2G) is a stabilized form of ascorbic acid and a potent antioxidant. Ascorbic acid is present in the testes and epididymis and helps maintain the physiological integrity of reproductive organs. Its properties have been utilized to protect spermatozoa of different species from oxidative stress.
Marcello Raspa   +2 more
wiley   +1 more source

Dicer is required for female reproductive tract development and fertility in the mouse. [PDF]

open access: yes, 2009
Dicer encodes a riboendonuclease required for microRNA biosynthesis. Dicer was inactivated in Müllerian duct mesenchyme-derived tissues of the reproductive tract of the mouse, using an Amhr2-Cre allele.
Alvarez-Garcia   +45 more
core   +1 more source

Benchmarks defining high‐quality sperm in the common marmoset (Callithrix jacchus)

open access: yesAndrology, EarlyView.
Abstract Background Common marmosets (Callithrix jacchus) are increasingly recognized as valuable nonhuman primates (NHPs) for biomedical research due to their small size and short reproductive cycle and lifespan relative to other NHP species. Maximizing the utility of captive research marmosets, including genetically manipulated animals, will require ...
Niloofar Sadeghi   +4 more
wiley   +1 more source

Inhibition of ROS1 activity with lorlatinib reversibly suppresses fertility in male mice

open access: yesAndrology, EarlyView.
Abstract Background Inhibition of sperm maturation in the epididymis is a promising post‐testicular strategy for short‐acting male contraceptives. It has been shown that ROS1, a receptor tyrosine kinase expressed in the epididymis, is essential for epididymal differentiation, sperm maturation, and male fertility in mice.
Yuki Oyama   +9 more
wiley   +1 more source

In vivo expression of ß-galactosidase by rat oviduct exposed to naked DNA or messenger RNA

open access: yesBiological Research, 2002
Intra-oviductal administration of RNA obtained from oviducts of estradiol-treated rats resulted in accelerated egg transport (Ríos et al., 1997). It is probable that estradiol-induced messenger RNA (mRNA) entered oviductal cells and was translated into ...
MARIANA RIOS   +2 more
doaj  

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