Sex Hormones
Mostrando 13-24 de 194 artigos, teses e dissertações.
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13. Sex differences on solid organ histological characteristics after brain death1
PURPOSE: To investigate gender differences in the evolution of the inflammatory process in rats subjected to brain death (BD). METHODS: Adult Wistar rats were divided into three groups: female; ovariectomized female; and male rats. BD was induced using intracranial balloon inflation and confirmed by maximal pupil dilatation, apnea, absence of reflex, and
Acta Cir. Bras.. Publicado em: 2016-04
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14. Impact of body mass index, age and varicocele on reproductive hormone profile from elderly men
ABSTRACT Objectives: To study the impact of obesity, age and varicocele on sexual hormones fof adult and elderly men. Materials and Methods: 875 men who were screened for prostate cancer were enrolled in this study. Data recorded comprised age, body mass index (BMI), serum levels of total testosterone (TT), free testosterone (FT), sex hormone-binding globu
Int. braz j urol.. Publicado em: 2016-04
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15. Effect of estradiol and bisphenol A on human hepatoblastoma cell viability and telomerase activity
Sex hormones from environmental and physiological sources might play a major role in the pathogenesis of hepatoblastoma in children. This study investigated the effects of estradiol and bisphenol A on the proliferation and telomerase activity of human hepatoblastoma HepG2 cells. The cells were divided into 6 treatment groups: control, bisphenol A, estradiol,
Braz J Med Biol Res. Publicado em: 18/09/2015
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16. Antioxidant status in women with uterine leiomyoma: relation with sex hormones
RESUMOLeiomiomas uterinos são tumores benignos dos tecidos moles que surgem da musculatura lisa uterina. A etiopat ogênese dos leiomiomas não é bem compreendida. Nós objetivamos examinar se a atividade de enzimas antioxidantes e o nível de hidroperóxidos de lipídios em pacientes com leiomioma são influenciados por mudanças nos hormônios sexuais e
An. Acad. Bras. Ciênc.. Publicado em: 2015-09
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17. Behavioral effects of endogenous or exogenous estradiol and progesterone on cocaine sensitization in female rats
Cocaine sensitization is a marker for some facets of addiction, is greater in female rats, and may be influenced by their sex hormones. We compared the modulatory effects of endogenous or exogenous estradiol and progesterone on cocaine-induced behavioral sensitization in 106 female rats. Ovariectomized female rats received progesterone (0.5 mg/mL), estradiol
Braz J Med Biol Res. Publicado em: 2014-06
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18. Obesity may influence the relationship between sex hormones and lower urinary tract symptoms
PurposeThe effects of serum testosterone in the lower urinary tract symptoms (LUTS) in patients with benign prostatic hyperplasia (BPH) are not well established. The objective of the study is to evaluate the association of sex hormones with LUTS and control the results by patient weight.Materials and MethodsThe study comprised a cross-sectional analysis of 7
Int. braz j urol.. Publicado em: 2014-04
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19. Effect of chronic ethanol consumption in female rats subjected to experimental sepsis
The objective of this research was to evaluate the interference of ethanol consumption by female rats with cytokines involved in the sepsis process and its correlation with mortality, the main outcome of sepsis. Female Wistar rats in estrus phase were evaluated in three experiments. Experiment 1 (n=40) was performed to determine survival rates. Experiment 2
Braz J Med Biol Res. Publicado em: 10/12/2013
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20. Roles of estrogen and progesterone in modulating renal nerve function in the rat kidney
The maintenance of extracellular Na+ and Cl- concentrations in mammals depends, at least in part, on renal function. It has been shown that neural and endocrine mechanisms regulate extracellular fluid volume and transport of electrolytes along nephrons. Studies of sex hormones and renal nerves suggested that sex hormones modulate renal function, although thi
Braz J Med Biol Res. Publicado em: 02/07/2013
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21. Effect of castration on renal glycosaminoglycans and their urinary excretion in male and female rats with chronic renal failure
Glycosaminoglycans (GAGs) participate in a variety of processes in the kidney, and evidence suggests that gender-related hormones participate in renal function. The aim of this study was to analyze the relationship of GAGs, gender, and proteinuria in male and female rats with chronic renal failure (CRF). GAGs were analyzed in total kidney tissue and 24-h uri
Braz J Med Biol Res. Publicado em: 2013-07
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22. The chronic blockade of angiotensin I-converting enzyme eliminates the sex differences of serum cytokine levels of spontaneously hypertensive rats
Sex hormones modulate the action of both cytokines and the renin-angiotensin system. However, the effects of angiotensin I-converting enzyme (ACE) on the proinflammatory and anti-inflammatory cytokine levels in male and female spontaneously hypertensive rats (SHR) are unclear. We determined the relationship between ACE activity, cytokine levels and sex diffe
Braz J Med Biol Res. Publicado em: 01/02/2013
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23. Sex hormones in Malay and Chinese men in Malaysia: are there age and race differences?
OBJECTIVES: Variations in the prevalence of sex-hormone-related diseases have been observed between Asian ethnic groups living in the same country; however, available data concerning their sex hormone levels are limited. The present study aimed to determine the influence of ethnicity and age on the sex hormone levels of Malay and Chinese men in Malaysia. MET
Clinics. Publicado em: 2013
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24. Perfil dos esteroides gonadais e expressão dos hormônios folículo estimulante (FSH) e luteinizante (LH) durante a inversão sexual de Epinephelus marginatus (Teleostei: Serranidae), hermafrodita protogínico, utilizando-se inibidor de aromatase / Gonadal steroids profile and expression of follicle-stimulating (FSH) and luteinizing (LH) hormones during the sex reversal of Epinephelus marginatus (Teleostei: Serranidae) hermaphroditic protogynous, using aromatase inhibitor
A plasticidade do desenvolvimento gonadal em peixes, que contrasta com os padrões mais estáveis encontrados nos demais vertebrados, deu origem a várias questões intrigantes relativas tanto ao seu significado adaptativo quanto aos fatores genéticos e fisiológicos que modulam o processo. A inversão do sexo em peixes hermafroditas seqüenciais (protândr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012