In an experiment replicated over 2 yr, 149 suckled beef cows were administered Syncro-Mate-B (SMB), a 6-mg Norgestomet (NOR) ear implant (in situ 9 d) in conjunction with an i.m. injection of 5 mg of estradiol valerate (EV), and either 3.0, 4.5, or 6.0 mg of NOR, 2 d after estrus. All cows were artificially inseminated a t 48 h (timed insemination; TI) after implant removal (IR) and cows were r...

Background: Leukemia inhibitory factor (LIF) is a 45-56 kDa glycoprotein that has an important role in proliferation and embryo implantation. Its effect on oocyte maturation and how to exert the function remained to be elucidated. Methods: Immature mice superovulated with human menopausal gonadotropin and germinal vesicle (GV) oocytes were obtained from ovary 48 hours after. GV oocytes were cul...

The aim of this study was to investigate biologic function of bone morphorgenic protein-2 (rhBMP-2) immobilized on the heparin-grafted Ti surface. Ti surfaces were first modified by 3-aminopropyltriethoxysilane (ATPES), followed by grafting of heparin. BMP-2 was then immobilized on the heparin-grafted Ti surfaces. Pristine Ti and functionalized Ti surfaces were characterized by X-ray photoelect...

Thermal quenching is described as a decrease in luminescence efficiency with increasing measurement temperature. Luminescence intensity decreases heating rates the presence of thermal quenching. In such case, rate to be used measurements becomes important. Lithium fluoride (LiF) type dosimeters have been widely radiation dosimetry for many years. this study, effect was investigated LiF:Mg,Ti (T...

in this study, mixed metal oxides al2o3/mgo/tio2 coatings with al/mg/ti ratio of 5:1:3 and 2.5:3:4 were coated on aluminum by sol-gel method. the surface morphology, phase analysis, thermal behavior and the corrosion behavior of the al2o3/mgo/tio2 coatings were characterized by (sem), (xrd), (tg-dta) and potentiodynamic polarization test in 3.5 wt.% nacl solution. the results demonstrated that ...

maternal leukemia inhibitory factor (lif) is required for successful implanta¬tion in mice, but little is known about its role and expression in human reproduc¬tion. here we report on the pattern of lif mrna expression in 30 samples of previously fertile and 11 infertile human endometrium, 10 samples of previously fertile post-menopausal endometrium and 10 uterine (fallopian) tubes from pre¬vio...