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Orthotopic liver transplantation (OLT) remains a potentially hemorrhagic procedure. Rotational thromboelastometry (ROTEM) is a point-of-care device used to monitor coagulation during OLT. Whether it allows blood loss and transfusions to be reduced during OLT remains controversial. Excellent correlations and predictive values have been found between ROTEM… (More)
The involvement of protein kinase C (PKC) in GnRH action is still a matter of controversy. We have conducted a comparative study of LH and FSH release in response to GnRH and to phorbol ester myristate acetate (PMA), an activator of PKC, by rat pituitary cells maintained in culture. The effect of E2 pretreatment coupled or not with PKC depletion was also… (More)
Prostate growth is known to be controlled by steroids such as androgens and estradiol. For this reason steroids (estradiol, adrenal androgens) or steroid inhibitors are commonly used as palliative treatments for prostate carcinoma. In view of the pivotal role played by Ca2+ ions in cell proliferation, we decided to investigate the effects of 17… (More)
Although enhancement of GnRH-stimulated luteinizing hormone (LH) release by estradiol (E2) has been established, it is not known at what stages of the process of transduction E2 acts. We investigated the release of LH in response to GnRH and to Bay K 8644, an activator of L-type calcium channels, in a culture of pituitary cells obtained from ovariectomized… (More)
Although active spermatogenesis occurs throughout the year in the male European badger Meles meles L., seasonal fluctuations of testicular activity were observed. The present study compared the pattern of luteinizing hormone (LH) and testosterone (T) secretions throughout the annual cycle. LH secretion was investigated by means of a heterologous… (More)
We studied the effects of TRH on intracellular pH (pHi) in individual cells of the GH3 pituitary clonal cell line using the seminaphtorhodafluor pH indicator. We show that, in a majority of cells, TRH action on pHi occurs in two phases: first acidification then alkalinization. Acidification and Ca2+ mobilization are related in time. K+ depolarization (KCl,… (More)
Plasma testosterone levels change with annual sexual cycle of the stone marten. Very low during the decrease and the quiescence of the testis, it rises during the testis onset and reaches a maximal peak during the coït period (May to July).
The Genet testis shows a spermatogenic activity throughout the year. The plasmatic androgen level presents two periods where the values are higher; one in spring the other in autumn. The spring testosterone rise coïncides with a mating period.
A high-affinity corticosteroid-binding protein (CBG) roughly resembling a transcortin-type protein is present in badger plasma. Plasma CBG, corticosteroid and progesterone (P) concentrations were measured in relation to delayed implantation, true progestation and gestation. Two significant CBG increases were observed during pregnancy. The first, in the… (More)