Results 31 to 40 of about 116,844 (296)
Estrous behavior in dairy cows: identification of underlying mechanisms and gene functions [PDF]
, 2010 Selection in dairy cattle for a higher milk yield has coincided with declined fertility. One of the factors is reduced expression of estrous behavior. Changes in systems that regulate the estrous behavior could be manifested by altered gene expression ...
Beerda, B. +3 more
core +2 more sources
Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization
Advanced Science, EarlyView.This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin +11 more
wiley +1 more source
Induction of final oocyte maturation in Cyprinidae fish by hypothalamic factors: a review
Veterinární Medicína, 2009 Gonadotropin-releasing hormone in Cyprinidae as in other Vertebrates functions as a brain signal which stimulates the secretion of luteinizing hormone from the pituitary gland. Two forms of gonadotropin-releasing hormone have been identified in cyprinids,
P. Podhorec, J. Kouril
doaj +1 more source
Adrenal luteinizing hormone releasing hormone receptors. [PDF]
Journal of Histochemistry & Cytochemistry, 1978 Paraffin sections of mouse adrenals processed with antiserum to luteinizing hormone-releasing hormone (LHRH) in the unlabeled antibody enzyme method reveal moderate staining in the cytoplasm of cells of zona fasciculata and reticularis. The stain is intensified upon pretreatment of sections with LHRH.
L A, Bernardo +3 more
openaire +2 more sources
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 +6 more
wiley +1 more source
Taiwanese Journal of Obstetrics & Gynecology, 2009 Objective: Here, we report a case of secondary amenorrhea with low serum luteinizing hormone and follicle-stimulating hormone levels due to an inhibin A- and inhibin B-producing granulosa cell tumor of the ovary.
Marzieh Agha-Hosseini +3 more
doaj +1 more source
Prolactin is a strong candidate for the regulation of luteal steroidogenesis in vizcachas (Lagostomus maximus) [PDF]
, 2018 Prolactin (PRL) is essential for the maintenance of the corpora lutea and the production of progesterone (P4) during gestation of mice and rats, which makes it a key factor for their successful reproduction.
Charif, Santiago Elías +10 more
core +1 more source
Advanced Science, EarlyView.Impaired endometrial receptivity contributes to the poor pregnancy outcomes in women with PCOS. The authors found that decreased endometrial IL‐22 levels and disrupted STAT3‐IGFBP5 signaling pathway contributed to impaired endometrial receptivity. Supplementation with IL‐22 or IGFBP5 exerts a protective effect on implantation failure in PCOS‐like mice,
Baoying Liao +13 more
wiley +1 more source
Reproductive Biology and Endocrinology, 2012 Background High circulating luteinizing hormone (LH) level is a typical biochemical feature of polycystic ovary syndrome (PCOS) whose pathophysiology is still unclear.
Liu Nana +7 more
doaj +1 more source
Clinics, 2018 OBJECTIVE: The ideal dosage of cross-sex hormones remains unknown. The aim of this study was to evaluate the luteinizing hormone, follicle-stimulating hormone, testosterone, estradiol and prolactin levels after low-dose estrogen therapy with or without ...
Flávia Siqueira Cunha +4 more
doaj +1 more source