Reduced period from follicular wave emergence to luteolysis generated greater steroidogenic follicles and estrus intensity in dairy cows [PDF]
Scientific Reports, 2023 The onset of productive life in dairy cattle, concomitant to parturition, is accompanied by a substantial decrease in fertility in comparison with non-lactating, nulliparous heifers.
T. Minela +4 more
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Luteal and placental function in the bitch: spatio-temporal changes in prolactin receptor (PRLr) expression at dioestrus, pregnancy and normal and induced parturition [PDF]
Reproductive Biology and Endocrinology, 2011 Background Endocrine mechanisms governing canine reproductive function remain still obscure. Progesterone (P4) of luteal origin is required for maintenance of pregnancy.
Hoffmann Bernd +7 more
doaj +4 more sources
Local Expression Dynamics of Various Adipokines during Induced Luteal Regression (Luteolysis) in the Bovine Corpus Luteum [PDF]
Animals, 2023 The study aimed to evaluate the mRNA expression levels of various local novel adipokines, including vaspin, adiponectin, visfatin, and resistin, along with their associated receptors, heat shock 70 protein 5, adiponectin receptor 1, and adiponectin ...
Granit Thaqi +2 more
doaj +2 more sources
Primary Uterine Inertia (PUI) in Dogs Is Associated with Impaired Placental Availability of Factors Involved in the Parturition Cascade [PDF]
AnimalsThe canine parturition cascade involves decreased placental progesterone (P4) signaling mediated through its nuclear receptor PGR in decidual cells, leading to increased trophoblast production of PGF2α that promotes luteolysis, placentolysis, and ...
Marianne Steiner +7 more
doaj +2 more sources
A Novel Microencapsulated Bovine Recombinant Interferon Tau Formulation for Luteolysis Modulation in Cattle [PDF]
BiomoleculesEarly embryonic loss is a major cause of reproductive inefficiency in cattle, primarily due to premature luteolysis. Interferon tau (IFN-τ), secreted by the trophoblast, plays a critical role in maternal recognition of pregnancy by maintaining corpus ...
Emilio Lamazares +13 more
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Effect of breeding season and age on follicular dynamics and hemodynamics in embryo donor mares subjected to luteolysis after embryo flushing [PDF]
Open Veterinary JournalBackground: Mares are the only companion animal simulating women in the large diameter of their follicle, the effect of aging on reproduction and even mares are more sensitive to summer heat stress as they can sweat like human.
Jamal M.H. Alkhadrawy +3 more
doaj +2 more sources
The Journal of Reproduction and Development, 2022 In mammals, the corpus luteum (CL) is a transient organ that secretes progesterone (P4). In the absence of pregnancy, the CL undergoes regression (luteolysis), which is a crucial preparation step for the next estrous cycle.
Takuo HOJO +2 more
doaj +1 more source
Journal of Dairy Science, 2022 : Our objective was to determine the effect of inducing an accessory corpus luteum (CL) with human chorionic gonadotropin (hCG; 3,300 IU) on d 7 (hCG7) or 2 accessory CL with hCG on d 7 and 13 (hCG7+13) of the estrous cycle in noninseminated lactating ...
Thiago O. Cunha +5 more
doaj +1 more source
A Review of Delayed Delivery Models and the Analysis Method in Mice
Journal of Developmental Biology, 2022 In humans, the incidence of post-term delivery is 1–10%. Post-term delivery significantly increases the risk of cesarean section or neonatal intensive care unit (NICU) admission.
Hiroshi Yomogita +2 more
doaj +1 more source
Intraovarian regulation of luteolysis [PDF]
Bioscientifica Proceedings, 2019 The corpus luteum is a transient gland, which is only functional for 17-18 days in the cyclic cow or for up to 200 days in the pregnant cow. Regression of the corpus luteum is essential for normal cyclicity as it allows the development of a new ovulatory follicle, whereas prevention of luteolysis is necessary for the maintenance of pregnancy.
R, Meidan +4 more
openaire +2 more sources