Results 41 to 50 of about 100,933 (268)

The role of GABA in the regulation of GnRH neurons

open access: yesFrontiers in Neuroscience, 2014
Gonadotropin-releasing hormone (GnRH) neurons form the final common pathway for the central regulation of reproduction. Gamma-amino butyric acid (GABA) has long been implicated as one of the major players in the regulation of GnRH neurons.
Miho Watanabe, A. Fukuda, J. Nabekura
semanticscholar   +1 more source

Hepatic KLF9 Deficiency Inhibits Dehydroepiandrosterone (DHEA)‐Induced Polycystic Ovary Syndrome via Liver‐Ovary Axis

open access: yesAdvanced Science, EarlyView.
The study shows that liver is a previously unrecognized extraovarian organ that plays a key role about androgen homeostasis in the development of DHEA‐induced PCOS. DHEA is the most common precursor of active androgen, such as DHT, and KLF9 is required for the conversion of DHEA to DHT and hepatic KLF9 might be a potential therapeutic target for PCOS ...
Jianli Song   +11 more
wiley   +1 more source

Effects of GnRH, PGF2α and oxytocin treatments on conception rate at the time of artificial insemination in lactating dairy cows

open access: yesCzech Journal of Animal Science, 2011
In several studies, hormones such as gonadotropin-releasing hormone (GnRH), prostaglandins and oxytocin were used to increase pregnancy rate by inducing ovulation and improving the sperm transport in the female reproductive tract in lactating dairy ...
A. Gümen   +5 more
doaj   +1 more source

Assessing Pubertal Timing, Duration, and Related Characteristics in ASXL‐Related Disorders: A Cross‐Sectional Caregiver Survey Analysis

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Limited studies have been conducted on pubertal development in populations with pre‐existing medical conditions. More than 20‐fold increased risk of early puberty has been reported in neurodevelopmental disorders; however, this is a heterogeneous group.
Amanda Piring   +4 more
wiley   +1 more source

Sperm DNA methylation profiling in patients with Kallmann syndrome

open access: yesEndocrine Connections
Objective: This study aims to comprehensively characterize the DNA methylation profile in the sperm of patients with Kallmann syndrome (KS), providing new insights into the potential epigenetic mechanisms contributing to the pathogenesis of the disease ...
Rongrong Wang   +9 more
doaj   +1 more source

Treatment of ovarian cysts in sows - a field trial

open access: yesVeterinární Medicína, 2007
Different procedures of treatment of large follicular ovarian cysts in 177 sows using GnRH, hCG and PGF2α are evaluated in this study. Ovarian cysts were diagnosed by transcutaneous ultrasonography, which was a part of routine pregnancy diagnosis.
S. Cech, R. Dolezel
doaj   +1 more source

Disruption of ovarian function and induction of apoptosis in female mice by Brefeldin A: Mechanistic insights into reproductive toxicity

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Brefeldin A (BFA) significantly inhibits oocyte release and induces apoptosis in ovarian granulosa cells by disrupting follicular development. It downregulates proliferation‐associated genes, reduces SIRT1/SIRT6 proteins, and upregulates cell cycle inhibitors P21 and P16. Additionally, BFA impairs estrogen synthesis and affects ovarian function through
Yao Jiang   +8 more
wiley   +1 more source

Fasting and Refeeding Mediated Phospholipid Remodeling Plays an Important Role in Improving Meat Quality of Aged Laying Hens

open access: yesAnimal Research and One Health, EarlyView.
ABSTRACT This study explored fasting‐induced physiological remodeling effects on meat quality in aged laying hens. Fasting for 15 days (F15) significantly reduced abdominal fat, intermuscular fat width, subcutaneous fat thickness, and liver index versus pre‐fasting (F0) (p < 0.05), which recovered post‐refeeding.
Xiaoran Zhang   +8 more
wiley   +1 more source

Heart failure with preserved ejection fraction in cancer patients and survivors. A scientific statement of the Heart Failure Association of the ESC and the ESC Council of Cardio‐Oncology

open access: yesEuropean Journal of Heart Failure, EarlyView.
Specific characteristics of HFpEF universal definition in cancer patients. Abstract Heart failure with preserved ejection fraction (HFpEF) is increasingly recognized in cancer patients and survivors, yet it remains underdiagnosed and its epidemiology largely unknown.
Kalliopi Keramida   +21 more
wiley   +1 more source

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