Results 31 to 40 of about 63,070 (266)

STUDIES REGARDING THE CONCEPTION RATES AT DAIRY COWS

Scientific Papers Animal Science and Biotechnologies, 2023
The conception rate is defined as the aptitude of a female to romaine pregnant after the first A.I. and represents the proportion between the number of pregnant cows at first A.I and the number of cows inseminated in that period.
N. PĂCALĂ, N. CORIN, I. BENCSIK, D. DRONCA, V. CARABĂ, ADA TELEA, ALEXANDRA IVAN, S. PAPP   +7 more
doaj  

Identification and Functional Characterization of a Novel SEMA3A Exon Deletion Variant in Kallmann Syndrome. [PDF]

Mol Genet Genomic Med
The study identified a novel SEMA3A exons 6–9 deletion variant in Kallmann syndrome that impairs GnRH neuronal migration and alters cell migration, gonad development, and synaptic pathways. The study expands mutation spectrum and offers mechanistic insights for clinical diagnosis of Kallmann syndrome.
Zang S, Zhou S, Liu Q, Yin X, Li P.
europepmc   +2 more sources

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source

Gene Expression Associated with Comparative study between Lepidium sativum extract and hormonal treatment of ovarian inactivity in crossbreed cows. [PDF]

Basrah Journal of Veterinary Research
This research aimed to study the effect of Lepidium sativum (LS) seed extract and to compare between it and GnRH in treating inactive ovaries in cows by gene expression, the study was conducted on 27 lactating anestrus crossbreed cows, aged between 3 ...
Hayder AL-Mutar, Enas Al-Yasiri, Talib AL-Hamedawi   +2 more
doaj   +1 more source

Comparative Single‐Cell Transcriptomic Atlas Reveals the Genetic Regulation of Reproductive Traits

Advanced Science, EarlyView.
A cross‐species single‐cell transcriptomic atlas of reproductive and central nervous system tissues from sheep and humans reveals conserved cellular programs and regulatory networks that regulated fertility. Integration with GWAS for sheep lifetime average litter size identifies UNC5–SLIT–BMP signaling as a core pathway coordinating neuroendocrine ...
Bingru Zhao, Hanpeng Luo, Dailu Guan, Xuefeng Fu, Feng Wang, Guoming Zhang, Shanglai Li, Hua Yang, Yanli Zhang   +8 more
wiley   +1 more source

Sperm DNA methylation profiling in patients with Kallmann syndrome

Endocrine 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, Xiaogang Li, Jingdi Zhang, Xi Wang, Jiangfeng Mao, Xinxin Feng, Siyu Wang, Yongzhe Li, Xueyan Wu, Ye Guo   +9 more
doaj   +1 more source

Physiological Effects of Gonadotropin-Releasing Hormone Immunocontraception on White-Tailed Deer

Human-Wildlife Interactions, 2017
Before immunocontraceptives can be considered safe to use on wildlife species, potential health risks should be assessed. Gonadotropin-releasing hormone (GnRH) immunocontraceptive has successfully reduced fertility of white-tailed deer (Odocoileus ...
Paul D. Curtis, Milo E. Richmond, Lowell A. Miller, Fred W. Quimby   +3 more
doaj   +1 more source

Gonadotropine Releasing Hormone (GnRH) Receptor Profile from Cow’s Hypothalamus

Jurnal Sain Veteriner, 2020
Gonadotropine Releasing Hormone (GnRH) is one of the recommended hormones to overcome ovulation problems and it can increase pregnancy rate so that it is used in government programs to increase cattle population in Indonesia, although the results are not
Irma Dian Nurani, Claude Mona Airin, Pudji Astuti, Khrisdiana Putri, Bambang Sutrisno   +4 more
doaj   +1 more source

Development of a GnRH Radioimmunoassay Utilizing a Superactive Synthetic GnRH Analog: D-[Lys6]-GnRH

Experimental Biology and Medicine, 1978
SummarySpecific, high titer anti-GnRH antisera were obtained following immunization of rabbits with a conjugate of thyroglobulin and D-[Lys6]-GnRH. D-[Lys6]-GnRH was chosen to take advantage of an ∊-amino group in the center of the peptide chain and three carbons away from the chain as a unique point of conjugation. The RIA developed with this antisera
D, Heber, W D, Odell
openaire   +2 more sources

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

Animal 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, Jun Zhang, Yadong Tian, Donghua Li, Yanhua Zhang, Lujie Zhang, Yujie Gong, Xiangtao Kang, Ruirui Jiang   +8 more
wiley   +1 more source