Ethinyl Estradiol
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Action of two endocrine disrupters on the sexual differenciation of Nile tilapia
RESUMO Desreguladores endócrinos são substâncias exógenas que possuem a capacidade de alterar uma ou várias funções do sistema endócrino com efeitos adversos a saúde um organismo intacto. O objetivo principal do presente trabalho foi avaliar a ação dos desreguladores endócrinos 17β-estradiol (E2) e 17α-etinilestradiol (EE2) na diferenciação s
Rev. Ciênc. Agron.. Publicado em: 04/07/2019
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2. Removal of synthetic sex hormones by hydrothermal carbonization
ABSTRACT One of the most prominent fields of environmental chemistry is the study and the removal of micro-pollutants from aqueous matrices. Analytical techniques for their identification and quantification are becoming more sensitive and comprehensive and, as a result, an increasing number of drugs have been detected in environmental samples. However, the l
An. Acad. Bras. Ciênc.. Publicado em: 14/05/2018
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3. Simultaneous determination of ethinyl estradiol and drospirenone in oral contraceptive by high performance liquid chromatography
Um método simples, rápido, econômico e confiável foi desenvolvido empregando a cromatografia líquida de alta eficiência para a determinação simultânea de etinilestradiol e drospirenona em comprimidos revestidos. O método foi realizado utilizando coluna LiChroCART® 100RP (125 x 4 mm d.i., 5 µm), a fase móvel constituída de acetonitrila:água, 50
Braz. J. Pharm. Sci.. Publicado em: 2013-09
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4. Desenvolvimento da próstata masculina e feminina do gerbilo da Mongólia submetido à exposição no período embriofetal e pós-natal de etinilestradiol / Development of male and female prostate of the Mongolian gerbil submitted to the exposure embryofetal period and postnatal ethinylestradiol
In males, prostatic morphogenesis is an event controlled by androgens, which act directly via paracrine factors secreted by the mesenchyme. In females, the embryological development of the prostate appears to occur in environment low levels of steroid hormones, but the presence of these hormones in the adult life induces differentiation and secretory activit
Publicado em: 2010
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5. Study of electrochemical degradation, photochemical, and photocatalytic eletrofotocatalitica the hormone ethinylestradiol / Estudo da degradação eletroquímica, fotolítica, fotocatalítica e eletrofotocatalítica do hormônio etinilestradiol
In recent years, the environmental research has been facing serious problems in relation to some substances in the aquatic environment in small concentrations, such as the endocrine desruptores pharmaceuticals, natural and synthetic hormones, pesticides, tensosativas substances, polymers of low molar mass and different other organic contaminants present in m
Publicado em: 2009
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6. Reversal of Ethinyl Estradiol-induced Bile Secretory Failure with Triton WR-1339
The effects of Triton WR-1339 and phenobarbital on ethinyl estradiol bile secretory failure were examined to determine the mechanism responsible for decreased bile salt excretion. When administered to ethinyl estradiol-treated rats, Triton WR-1339 restored bile salt independent bile flow and maximum taurocholate transport, whereas phenobarbital corrected bil
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7. Alterations of hepatic Na+,K+-ATPase and bile flow by estrogen: Effects on liver surface membrane lipid structure and function
Administration of the synthetic estrogen ethinyl estradiol (17α-ethinyl-1,3,5-estratriene-3,17β-diol) decreases hepatic Na+,K+-ATPase (ATP phosphohydrolase; EC 3.6.1.3) activity and bile flow to 50% and alters the composition and structure of surface membrane lipid in rats. Although the content of phospholipids was not changed by treatment, free cholestero
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8. Increased mRNA for low density lipoprotein receptor in livers of rabbits treated with 17 alpha-ethinyl estradiol.
Pharmacologic doses of 17 alpha-ethinyl estradiol are known to increase the number of low density lipoprotein (LDL) receptors in livers of rats, thereby producing a profound fall in plasma cholesterol levels. We now report that ethinyl estradiol exerts the same effect in livers of male and female rabbits and that the increase in receptor number is correlated
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9. The Effect of Chlorophenoxyisobutyric Acid and Ethinyl Estradiol on Cholesterol Turnover*
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10. Effect of estrogens on the myeloperoxidase-mediated antimicrobial system.
Estradiol 17 beta prevented the fall in the microbicidal activity of the myeloperoxidase-H2O2-halide system induced by high H2O2 concentrations. In contrast, when the H2O2 (and halide) concentrations were low the myeloperoxidase-H2O2-halide antimicrobial system was inhibited by estradiol. These properties of estradiol 17 beta were shared by estradiol 17 alph
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11. Pentagastrin-induced release of free fatty acids in healthy volunteers and patients with panic disorder: effect of pretreatment with ethinyl estradiol
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12. Studies of Relationships among Bile Flow, Liver Plasma Membrane NaK-ATPase, and Membrane Microviscosity in the Rat
Liver plasma membrane (LPM) NaK-ATPase activity, LPM fluidity, and bile acid-independent flow (BAIF) were studied in rats pretreated with one of five experimental agents. Compared with controls, BAIF was increased 24.6% by thyroid hormone and 34.4% by phenobarbital, decreased by ethinyl estradiol, but unchanged by propylene glycol and cortisone acetate. Para