Browsing by Subject "Developmental Biology"
Now showing items 41-60 of 63
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(1980)It is well established that the capacity for teeth to differentiate “in vitro” depends upon: (a) the age of the embryonic rudiments at the time of excision and (b) the number of cells within each tissue type which are ...
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(2009)Background: Depletion of ovarian follicles is associated with the end of reproductive function in ageing females. Recently, it has been described that this process parallels increases in the concentration of norepinephrine ...
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(1979)The maturation of Xenopus laevis oocytes was studied in media free of added potassium salts. Under these conditions maturation could be triggered by 1 mM Mn2+ and La3+ and, to a lesser extent, by 2-4 mM Ca2+ and Mg2+. ...
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(1993)In this study we evaluated the effect of several trypsin inhibitors (p-aminobenzamidine: pAB; N-α-p-tosyl-L-lysine-chloromethyl-ketone: TLCK and p-nitrophenyl-p'-guanidino-benzoate NPGB) on sperm binding and penetration ...
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(2009)Background: Mating changes the mode of action of 17beta-estradiol (E2) to accelerate oviductal egg transport from a nongenomic to a genomic mode, although in both pathways estrogen receptors (ER) are required. This change ...
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(Wiley, 2014)Mating shuts down a 2-methoxyestradiol (2ME)-dependent, non-genomic activity that is responsible for accelerating egg transport in the rat oviduct. The aims of this work were to investigate the role of TGF1 in this 2ME-reduced ...
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(1986)In this study we examined the possible inductive role of the dental papilla from polyphyodont lizard tooth germs. Flank skin sheets of quail ectoderm enzymatically separated from dermal tissue were recombined with lizard ...
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(1987)Trophoblast populations in four cases of placenta accreta were characterized using antibodies directed against cell membrane antigens, placental hormonal products and low-molecular-weight cytokeratins in standard ...
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(Elsevier B.V., 2016)
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(1995)The subcellular distributions of the mammalian passive glucose transporter isoforms GLUT1, GL UT3 and GL UT4, in the human placenta, there investigated using isoform-specific anti-peptide antibodies. On western blots of ...
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Renal function in the chronically cannulated fetal llama: Comparison with studies in the ovine fetus (1995)Samples of maternal and fetal plasma, fetal urine, and amniotic fluid were collected from 8 chronically cannulated pregnant llamas, in the last third of gestation. The samples were obtained for up to 18 days post-surgery. ...
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(1987)Some aspects of the reproductive biology of the glossiphoniid leech, Theromyzon rude, under laboratory conditions, and the staging and structure of its uncleaved egg were studied. Sexually mature animals form breeding ...
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(1990)Reorganization of the fertilized egg during completion of the first meiotic division was studied in the glossiphoniid leech Theromyzon rude. Rotation of the meiotic spindle, presumably as a result of changes in the length ...
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(1977)The subcellular distribution of the membrane components, present in rat brain cortex homogenates, that interact with glycine in the presence of sodium ions was studied. The distribution in the primary fractions, as per ...
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(2011)Cystic ovarian disease (COD) is an important cause of abnormal estrous behavior and infertility in dairy cows. COD is mainly observed in high-yielding dairy cows during the first months post-partum, a period of high stress. ...
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(1987)Xenopus laevis oocytes were injected with poly(A)+ mRNA isolated from rat brain and superfused in a medium containing either serotonin, angiotensin II or bradykinin. Applications of serotonin or angiotensin II to injected ...
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(1977)The onset of acid and alkaline phosphatase activity is determined by means of Burstone's azo dye coupling methods in oocytes and embryos of the mouse, rat and hamster, and in mouse embryos cultured in vitro. Acid phosphatase ...