Abstract Maternal recognition of pregnancy (MRP) resulting in prolonged luteal lifespan is crucial to maintenance pregnancy. Mechanisms underlying MRP differ between species, whereat the precise mechanism by which luteolysis prevented has yet be described for equine Transcriptional profiling studies entailing analysis endometrial and embryonic tissues have shed light into wider context maternal...

Luteal cells express class II major histocompatibility complex (MHC) molecules and can stimulate T lymphocyte proliferation in vitro. However, it is unknown whether luteal cells express the intracellular components necessary to process the peptides presented by class II MHC molecules. The objective of the present study was to examine the expression and regulation of three major class II-associa...

The effects on spontaneous ovulation associated with the unilateral or bilateral sectioning of the superior ovarian nerves (SON) were analyzed in guinea pigs at different time intervals of the estrous cycle. Day 1 of the estrous cycle was defined as the day when the animal presents complete loss of the vaginal membrane (open vagina). Subsequent phases of the cycle were determined by counting th...

BACKGROUND The effects of gonadotrophin-releasing hormone agonist (GnRH-a) administered in the luteal phase remains controversial. This meta-analysis aimed to evaluate the effect of the administration of a single-dose of GnRH-a in the luteal phase on ICSI clinical outcomes. METHODS The research strategy included the online search of databases. Only randomized studies were included. The outcom...

We examined the immunohistochemical localization of luteinizing hormone (LH)/human chorionic gonadotrophin (HCG) receptor (LH-R) in the human ovary using the anti-human LH-R monoclonal antibody, 3B5. In the antral follicles, LH-R was detected on theca interna cells. In pre-ovulatory follicles, granulosa cells also expressed LH-R. During corpus luteum formation, granulosa cells seemed to increas...

In the domestic species, regression of the corpus luteum is dependent on uterine release of prostaglandin (PG)F2 alpha. Despite the central role of PGF2 alpha in luteolysis, very little is known about the actual mechanism of prostaglandin-induced regression at the level of the luteal cell. Many studies have focused on the cellular site of action of PGF2 alpha, and it seems likely that this comp...

One of the many roles of tumor necrosis factor (TNF)-α is to control mammalian corpus luteum (CL) PG synthesis and apoptotic cell death. Here, the cellular localization of TNF-α and its type I (TNF-RI) and type II (TNF-RII) receptors in bovine luteal tissue were analyzed using in situ hybridization, immunohistochemistry, and quantitative real-time PCR. Transcripts for TNF-α were expressed in bo...

1. The objective of this study was to investigate whether the luteal phase of the menstrual cycle differs from the follicular phase by the development of a state of general vascular relaxation. 2. Once in the follicular and once in the luteal phase of the menstrual cycle, we measured by non-invasive techniques: arterial blood pressure (by finger blood pressure measurements), vascular tone (by p...

CONTEXT About 10% of Japanese female athletes are afflicted by menstrually-related edema, mainly in the lower limbs, and, with few studies on this problem, the effect on performance remains unclear. OBJECTIVE To quantitatively evaluate fluid retention in the calf in female students over their menstrual cycle using magnetic resonance imaging (MRI) and to determine the relationship of MRI chang...

The corollary follow up study carried presents variation in electrolyte content of serum during menstrual, follicular, ovulatory and luteal phases of menstrual cycle. Variation in sodium, potassium and chloride were found to be parallel with each other. Their level increase significantly from follicular to ovulatory phase and falls significantly during luteal phase. Bicarbonate levels are highe...