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Effect of the Treatment with Dexamethasone, for 10 and 15 Days, on the Fertility in Induced Rats to Polycystic Ovaries, by Constant Illumination International Journal of Morphology
Moraes,Eleonora de Figueiredo; Wanderley Teixeira,Valéria; Teixeira,Álvaro Aguiar Coelho; Silva,Welma Emídio da; Batista,Ana Paula Castor; Lemos,Ana Janaína Jeanine Martins de.
The present study had the objective of obtaining information about fertility in rats treated with dexamethasone for 10 and 15 days consecutively, to polycystic ovaries, induced by constant illumination. It was used 40 albino rats (Rattus norvegicus albinus), aged 90 days, form the lineage Wistar, which were split, randomly, in four groups, each constituted of 10 animals, namely: Group I - rats kept in a clear/dark cycle for 12/12 hours, and after 100 days submitted to fertility evaluation (control); Group II - rats kept under constant illumination during 100 days and then submitted to fertility evaluation; Group III - rats kept under constant illumination during 100 days, then treated with dexamethasone for 10 days and submitted to fertility evaluation;...
Tipo: Journal article Palavras-chave: Fertility; Polycystic ovaries; Dexamethasone; Rats.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300024
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EVALUATION OF THE IMPLANTATION IN PINEALECTOMIZED AND/OR SUBMITTED TO THE CONSTANT ILLUMINATION RATS International Journal of Morphology
Coelho Teixeira,Álvaro Aguiar; Simões,Manuel de Jesus; Wanderley Teixeira,Valéria; Soares Júnior,José Maria.
In this paper we evaluated the morphologic and quantitative aspects of the implantations sites in uteruses of female pinealectomized and/or submitted to the constant illumination rats. The experimental groups were: I - normal female rats maintained in a clear/dark cycle of 12/12 hours, for two months, mated and euthanasiated in the 6th day of pregnancy (control); II - female sham-pinealectomized rats maintained in a clear/dark cycle of 12/12 hours, for two months, mated and euthanasiated in the 6th day of pregnancy (control); III - female pinealectomized rats, maintained in a clear/dark cycle of 12/12 hours, for two months, mated and euthanasiated in the 6th day of pregnancy; IV - normal female rats maintained in constant illumination for two months, mated...
Tipo: Journal article Palavras-chave: Pinealectomy; Constant illumination; Implantation; Blastocyst.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000300003
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Histological Evaluation of the Induced Endometriosis in Rats, after Treatment with Dexamethasone International Journal of Morphology
Batista,Ana Paula Castor; Conceição,Ana Paula Maria da; Moraes,Eleonora de Figueiredo; Teixeira,Álvaro Aguiar Coelho; Wanderley Teixeira,Valéria.
The present research had the purpose to analyze morphologically the sites of endometrial implants on the external area of the musculature of the anterior abdominal wall of female rats, treated with dexamethasone. For so, these 15 albino female rats were used (Rattus norvegicus albinus), of the lineage Wistar with 90 days of age, that were submitted to the induction of the endometriosis, and divided in the following groups: Group I ­ induced female rats to endometriosis and evaluated after 21 days (control); Group II ­ induced female rats to endometriosis and after 21 days, treated with dexamethasone for 10 days; Group III - induced female rats to endometriosis, and after 21 days, treated with dexamethasone for 15 days. The dexamethasone was administered in...
Tipo: Journal article Palavras-chave: Endometriosis; Dexamethasone; Steriods; Hormones; Metaplasia.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500008
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Morphological Analysis of Neonates of Rats Treated with Dexamethasone in the Initial Phase of Pregnancy International Journal of Morphology
Vilaça Júnior,Paulo Estevao Araújo; Teixeira,Alvaro Aguiar Coelho; Wanderley Teixeira,Valéria; Moraes,Eleonora de Figueiredo; Araújo,Ana Claudia Carvalho de; Maia,Carina Scanoni.
The glucocorticoid dexamethasone has been largely used due to its anti-inflammatory effect. However, several authors report that the excessive exposition to it during pregnancy may cause a retard in the development in several tissues, mainly: liver, lungs and kidneys. But, the majority of the works are done with the application of dexamethasone in the late periods of pregnancy. Because of the lack of researches that evalúate the effects in the beginning of gestation, this paper aimed at evaluating the effect of dexamethasone administered in the initial phase of pregnancy, o ver the morphology of neonates rat. It was used 10 albino rats (Rattus norvegicus albinus) aged 90 days from the lineage Wistar. The female were coupled and divided in two groups: Group...
Tipo: Journal article Palavras-chave: Pregnancy; Dexamethasone; Histology; Rats.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300002
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ULTRASTRUCTURAL ANALYSIS OF PINEALECTOMY AND LACK OF LIGHT INFLUENCE OVER COLLAGEN IN THE ENDOMETRIUM OF RATS International Journal of Morphology
Pinto de Medeiros,Juliana; Wanderley Teixeira,Valéria; Aguiar Coelho Teixeira,Álvaro; Baratella Evêncio,Liriane; Evêncio Neto,Joaquim.
Some studies have shown that pinealectomized female rats present a large concentration of collagen fibers in the endometrium. The lack of light results in morphologic alterations in the uterine lamina propria and in the muscular layer, reducing thus the uterine weight. Therefore, this work aimed to analyze ultra-structurally the influence of melatonin in the remodeling of the collagen in the endometrium, in the estrus phase, in pinealectomized adult rats or submitted to lack of light. The experimental groups: I- sham-pinealectomized maintained in a clear/dark cycle 12/12 hours, during three months; II- pinealectomized rats maintained in a clear/dark cycle 12/12 hours, for three months; III- normal rats maintained in clear/dark cycle 12/12 hours for three...
Tipo: Journal article Palavras-chave: Melatonin; Endometrium; Pinealectomy; Collagen.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300008
Registros recuperados: 5
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