67 resultados para Resultado perinatal
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OBJETIVO: Analisar retrospectivamente o resultado do estudo anatomopatológico de polipectomias colonoscópicas realizadas no Setor de Endoscopia da Faculdade de Medicina de Botucatu - UNESP durante os anos de 2002 e 2003. Material e Métodos: Estudamos retrospectivamente, a partir de procedimentos colonoscópicos realizados em nosso serviço, as características dos pólipos retirados: tamanho, localização e distribuição, bem como o motivo da indicação do mesmo e o resultado do estudo anatomopatológico. RESULTADOS: Num total de 100 polipectomias colonoscópicas realizadas em 75 pacientes, observamos que 63% dos pólipos localizava-se em reto e sigmóide e 15,8% no cólon descendente; o estudo anátomopatologico evidenciou que a grande maioria tinha características adenomatosas (54%). A idade dos pacientes variou entre 6 e 92 anos, não havendo predominância quanto ao sexo; a principal indicação para a realização de colonoscopia foi sangramento. CONCLUSÃO: Constatamos o importante papel diagnóstico e terapêutico das colonoscopias no que diz respeito ao câncer colorretal; os achados demonstram que, em nossa casuística, a maioria os pólipos colônicos são adenomatosos, pequenos e de localização distal.
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O organofosforado diclorvós impregnado em coleiras plásticas é um recurso utilizado em medicina veterinária que visa ao controle de ectoparasitas de cães e gatos. O objetivo deste trabalho foi avaliar os efeitos do uso de coleiras plásticas impregnadas com diclorvós (8,37%) em ratas Wistar durante o período de gestação e lactação, como possível fonte de alterações comportamentais e da atividade colinesterásica cerebral dos filhotes. Na desmama, não houve diferença na atividade colinesterásica cerebral entre as mães tratadas com diclorvós e o grupo controle, bem como entre os respectivos filhotes. O tratamento com diclorvós também não influenciou no comportamento geral dos animais, avaliado no campo aberto, nem no nível de ansiedade testado no labirinto em cruz elevado, ambos aos 35 dias pós-natal.
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Realizou-se o presente estudo com o objetivo de avaliar o efeito de sexo (machos inteiros x fêmeas) e de quatro pesos ao abate (28, 32, 36 e 40 kg) sobre o desempenho, os caracteres da carcaça e resultados econômicos de cordeiros mestiços ½ Ile de France x ½ Corriedale, terminados em sistema de confinamento. Quarenta animais (20 machos e 20 fêmeas) foram desmamados aos 60 dias e alimentados à vontade com uma ração contendo 16,46% de PB e 67,63% de NDT. Foram divididos em quatro grupos de machos (G1M, G2M, G3M e G4M) e quatro grupos de fêmeas (G1F, G2F, G3F, e G4F), sacrificados, respectivamente, com os pesos supra citados. Determinaram-se o ganho médio de peso diário (GMPD), o peso do corpo vazio (PCV), os pesos de carcaça quente (PCQ) e fria (PCF), as perdas ao resfriamento (PR), os rendimentos comercial (RC) e verdadeiro (RV) e o pH da carne em três momentos. Observou-se efeito de sexo para GMPD, com superioridade dos machos. Houve efeito de peso ao abate sobre PCQ e PCF e também de sexo, tendo as fêmeas superado os machos em G3 e G4, para PCQ, e em G2, G3 E G4, para PCF. Constataram-se maiores valores de RC e RV para as fêmeas, em G3 e G4. Todos os grupos apresentaram-se similares em relação ao pH da carne, o qual descreveu uma curva dentro dos padrões esperados. O estudo econômico destacou G1M como tendo apresentado melhor conversão alimentar e maior renda líquida/animal. Entre as fêmeas, G1F foi o melhor, destacando-se as rendas líquidas negativas constatadas em G3F e G4F. Concluiu-se que o melhor peso ao abate foi 28 kg, tanto para os machos, como para as fêmeas. No caso dos machos, tolerar-se-ia o peso de 32 kg, apesar de ter propiciado renda líquida 12,8% inferior a G1M.
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The aim of the present study was to investigate the effects of perinatal estrogen exposure in the fertility of rats. Thus, rats were treated with estrogen on the 21st or 22nd day of intra-uterine life or treated with estrogen immediately after birth. It was observed that the testicular descent of males and beginning of puberty of females were advanced in all estrogen-treated groups. The females from estrogen-treated groups showed reduced frequency of estrous in 15 consecutive days of study, and there was an increase in estrous duration. Their fertility also were impaired and a reduction in the number of alive fetuses, as well as enhancement of pre- and postimplantation loss, mainly in the group treated with estrogen on the 21st day of intra-uterine life. However, the alterations observed in the fertility of estrogen-treated male rats were slighter and only females mated with male rats from the group treated with estrogen immediately after birth showed enhanced preimplantation loss. We suggest that the reproductive function is impaired by exposure to estrogen in the perinatal life of rats, and that the mechanisms involved in this effect are distinct for males and females. (C) 1997 Elsevier B.V.
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PURPOSE: to evaluate the insulin therapy protocol and its maternal and perinatal outcome in patients with clinical or gestational diabetes in a high risk reference service. METHODS: descriptive and prospective study including 103 pregnant women with gestational or clinical diabetes treated with insulin and attended by the reference service from October 2003 to December 2005. Gemellarity, miscarriages, unfinished prenatal care and deliveries not attended by the service were excluded. The gestational age at the beginning of the treatment, dosage, doses/day, increment of insulin (UI/kg), glycemic index (GI) and perinatal outcomes were compared. ANOVA, Fisher's exact test and Goodman's test considering p<0.05 were used. RESULTS: multiparity (92 versus 67.9%), pre-gestational body mass index (BMI) >25 kg/m 2 (88 versus 58.5%), weight gain (WG) <8 kg (36 versus 17%) and a high increment of insulin characterized the gestational diabetes. For the patients with clinical diabetes, despite the highest GI (120 mg/dL (39.2 versus 24%)) at the end of the gestational period, insulin therapy started earlier (47.2 versus 4%), lasted longer (56.6 versus 6%) and higher doses of insulin (92 versus 43 UI/day) were administered up to three times a day (54.7 versus 16%). Macrosomia was higher among newborns from the cohort of patients with gestational diabetes (16 versus 3.8%), being the only significant neonatal outcome. There were no neonatal deaths, except for one fetal death in the cohort of patients with clinical diabetes. There were no differences in the other neonatal complications in both cohorts, and most of the newborns were discharged from hospital up to seven days after delivery (46% versus 55.8%). CONCLUSIONS: the analysis of these two cohorts has shown differences in the insulin therapy protocol in quantity (UI/day), dosage (UI/kg weight) and number of doses/day, higher for the clinical diabetes cohort, and in the increment of insulin, higher for the gestational diabetes cohort. Indirectly, the quality of maternal glycemic control and the satisfactory perinatal outcome have proven that the treatment protocol was adequate and did not depend on the type of diabetes.
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Ivermectin is one of the most widely used antiparasitic drugs globally. The aim of this study was to evaluate the chronic effects of perinatal exposure to ivermectin on male reproductive parameters in rats. Pregnant rats were treated daily by oral gavage with 0.4 or 1.6 mg kg -1 of ivermectin or vehicle, from gestational day 6 until post-natal day 10. In the adulthood stage, there were significant reductions in the relative testicular weight of rats exposed to the low dose and in relative prostate weight of male rats exposed to the high dose of ivermectin. Furthermore, the animals exposed to the low dose also presented an increased seminal vesicle weight compared to controls. However, neither of the ivermectin doses interfered in daily sperm production, sperm number in testis, or sexual behavior of exposed males. In conclusion, perinatal exposure to ivermectin neither altered the male reproductive system development markedly, nor produced any adverse effects on the parameters evaluated. © 2011 Taylor & Francis.
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It is known that during sex differentiation, fetal androgens are critical determinants of the male phenotype. Although testosterone is necessary for normal development of male sexual behavior, perinatal androgen treatment can result in disruption of normal male sexual reproduction. Pregnant Wistar rats were administered either corn oil (vehicle) or testosterone propionate at 0.2 mg/kg from gestational day 12 until the end of lactation and the reproductive function of male offspring was evaluated at 90 (adulthood) and 270 (middle age) days of age. Perinatal androgenization in the rat provoked a reduction in sperm production and reserves in adulthood that did not affect fertility and did not persist at more advanced ages, as shown by the results at post-natal day 270. If perinatal androgenization promotes similar effects in humans of reproductive age, the results of the present work can impact male reproduction health, given the less efficient spermatogenesis and lower sperm reserves in the human epididymis, compared to rodents. © Georg Thieme Verlag KG Stuttgart. New York.
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Exposure to environmental chemicals may contribute to reproductive disorders, especially when it occurs in critical periods of development. The female reproductive system can be a target for androgens derived from environmental contaminants or pathological conditions. The purpose of this study was to assess the long-term effects of androgens on uterine tissue after maternal exposure limited to the time of gestation and lactation. Pregnant Wistar rats were treated with testosterone propionate (TP) at 0.05. mg/kg, 0.1. mg/kg, 0.2. mg/kg or corn oil (vehicle), s.c., from gestational day 12 until the end of lactation. The results show changes in the pattern of expression of receptors for estrogen, progesterone, and androgen at all doses tested, and decreases in both apoptosis and cell proliferation indices at 0.1 and 0.2. mg/kg. We conclude that early TP exposure, under these experimental conditions, causes changes in cellular and molecular parameters that are essential for normal uterine function in the adult. © 2013 Elsevier Inc.
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Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Letras - FCLAS