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Meiotic maturation of amphibian oocytes increases dephosphorylation of microinjected histones.
(Academic Pres Australia, 1981)
Histone H2b phosphorylated by a cAMP dependent protein kinase was injected into Xenopus laevis oocytes and the hydrolysis of phosphate groups measured. Two hours after injection 60% of the (32p) histone radioactivity had ...
Dynamics of steroid‐induced oocyte maturation in three amphibian species: Mathematical modeling and simulation
(John Wiley & Sons Inc, 2018-12)
Oocyte maturation in vertebrates involves morphological, biochemical, and functional changes through which meiosis, previously arrested in Profase I, is resumed. Within these changes, germinal vesicle breakdown (GVBD) ...
Glycolysis is operative in amphibian oocytes
(1994)
It is generally accepted that in frog full-grown oocytes glycolysis is absent and that carbon metabolic flux is largely directed to glycogen synthesis. Use of an anion exchange pellicular resin for analytical resolution ...
Ultrastructural changes in the follicular epithelium of Ceratophrys cranwelli previtellogenic oocytes
(Cambridge University Press, 2007-08)
In this work we carried out ultrastructural, autoradiographic and biochemical analyses of the follicular epithelium during C. cranwelli previtellogenesis. This study revealed that the follicular epithelium in early ...
Mitochondrial lipids in Bufo arenarum full-grown oocytes
(Cambridge University Press, 2004-05)
Both the content and composition of polar and neutral lipids from the mitochondrial fraction of ovarian full-grown Bufo arenarum oocytes were analysed in the present study. Triacylglycerols (TAG) represent 33% of the total ...
Conditions affecting protein synthesis in amphibian oocytes
(1976)
The endogenous protein synthesis of Xenopus laevis and Calyptocephalella caudiverbera oocytes was studied by measuring the incorporation into acid-precipitable material of radioactive amino acids placed in the extracellular ...
Effect of different types of sesquiterpene lactones on the maturation of Rhinella Arenarum oocytes
(Cambridge University Press, 2015-06)
The sesquiterpene lactones (STLs) are a large class of plant secondary metabolites that are generally found in the Asteraceae family and that have high diversity with respect to chemical structure as well as biological ...
Effect of meiotic maturation on yolk platelet lipids from Bufo arenarum oocytes
(Wiley-liss, Div John Wiley & Sons Inc, 2005-09)
Progesterone induces the resumption of meiosis in Bufo arenarum full-grown arrested oocytes through a nongenomic mechanism called meiotic maturation. Growing evidence indicates that lipids are involved in the maturation ...
Oncogenic ras protein induces meiotic maturation of amphibian oocytes in the presence of protein synthesis inhibitors
(1988)
Microinjection of the activated ras oncogenic protein can induce the meiotic maturation of Xenopus laevis oocytes, a process that can also be triggered by progesterone or high concentrations of insulin. Cycloheximide and ...
Inhibition by phenothiazine derivatives of the adenylate cyclase of amphibian oocytes
(1983)
The adenylate cyclase activity of membranes of Xenopus laevis oocytes and follicle cells was affected by the presence of 2-chloro-10-(3-aminopropyl)phenothiazine (CAPP) and two other antipsychotic drugs, fluphenazine and ...