Πλοήγηση ανά Θέμα "Developmental Biology"
Αποτελέσματα 1-9 από 9
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Effect of plasmin, plasminogen activators and a plasmin inhibitor on bovine in vitro embryo production
(2008)In the present study, four experiments were conducted to investigate the possible effects of plasminogen activators (urokinase-type plasminogen activator (u-PA) and tissue-type plasminogen activator (t-PA)), plasmin, and ... -
Effects of dietary vitamin A intake on acrosin- and plasminogen-activator activity of ram spermatozoa
(2005)Acrosin and plasminogen activators are proteolytic enzymes of ram spermatozoa that play an essential role in the induction of the acrosome reaction, as well as the binding of spermatozoa to the oocyte and their penetration ... -
Effects of metformin on fertilisation of bovine oocytes and early embryo development: possible involvement of AMPK3-mediated TSC2 activation
(2015)Studies on bovine oocytes have revealed that the activation of adenosine monophosphate activated protein kinase (AMPK) by millimolar concentrations of metformin controls nuclear maturation. Tuberous sclerosis complex 2 ... -
Estradiol and leptin as conditional prognostic IVF markers
(2005)We studied the concentration of serum estradiol and serum and follicular fluid leptin in 200 women undergoing their first in vitro fertilization with embryo transfer (IVF-ET) program at the time of human chorionic gonadotrophin ... -
Inhibin alpha gene and susceptibility to premature ovarian failure: a data synthesis
(2009)Candidate-gene association studies that examined the association between polymorphisms of the inhibin alpha gene (G769A, C16T and A124G) and premature ovarian failure (POF) have reported contradictory results. Thus, a ... -
Inhibition of human and ovine acrosomal enzymes by tannic acid in vitro
(2001)The effect of tannic acid, a common flavonoid, on the acrosin and plasminogen activator activity and plasmin activity of human and ram spermatozoa was evaluated. Acrosin and plasminogen activator activity were determined ... -
Luteal stage dependence of pituitary response to gonadotrophin-releasing hormone in cyclic dairy ewes subjected to synchronisation of ovulation
(2005)Possible hormonal aberrations precluding conception or maintenance of pregnancy in dairy ewes subjected to ovulation synchronisation were investigated in this study. The pituitary response to exogenous gonadotrophin-releasing ... -
Serum and follicular fluid leptin levels are correlated with human embryo quality
(2005)This prospective study was undertaken to reassess the prognostic value of leptin during critical stages of in vitro fertilization-embryo transfer (IVF-ET) and address its role in the functional staging of assisted reproductive ...