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Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB
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Pós-graduação em Medicina Veterinária - FMVZ
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Ciências Odontológicas - FOAR
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Biotecnologia Animal - FMVZ
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Pós-graduação em Odontologia - FOAR
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Pós-graduação em Odontologia - FOAR
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Oxidative stress is related with physiopathology of diabetes mellitus type II and with its secondary complications, such as diabetic nephropathy. Thus, the purpose of this study was to examine the effects of n-acetylcysteine NAC, an antioxidant from Allium cepa, on oxidative stress, morphometrical and nutritional parameters and basal metabolism and energetic substrate utilization, serum glucose and oral glucose tolerance test (OGTT), and renal function of high-sucrose intake rats. Animals were initially divided into three groups. Rats in the control group (C; n=10) were given free access to a standard chow and water; (S; n=10) group received standard chow and 30% sucrose in its drinking water; (SN; n=5) group received standard chow and 2g/L NAC and 30% sucrose in its drinking water. After 25 days of treatments, rats were submitted to indirect calorimetry in fasted and feed states. After 30 days of treatments, rats from C and S groups were divided into four groups of five rats each. The (CC) and (SS) groups were given an intra-gastric dose 0,6mL saline (0,9%NaCl) and the (CNAC) and (SNAC) groups were treated with a intra-gastric dose of 0,6mL NAC (160g/day), and then everybody received a intra-gastric dose of glucose solution (20%) for the OGTT. Animals of S and SN groups have higher liquid consumption and lower food consumption than C group. Calorimetric analyses confirm that despite of the final body weight had not statistical difference among groups, S group have lower resting metabolic rate when compared to C and SN animals. Besides, S group has higher respiratory quotient, higher carbohydrate oxidation and lower lipid oxidation, both in fasted and feed states, than C and SN groups, evidencing the beneficial effect of NAC. Fasting plasma glucose is increased in SS and SNAC animals when compared to CC and CNAC, however SN group has glicemic level at 30 min before OGTT decreased when ...(Complete abstract click electronic access below)
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Os fatores ambientais podem causar estresse nas plantas acarretando alterações no metabolismo ou desenvolvimento, consequentemente modifica as condições ótimas que afetam o ciclo de vida e induz respostas em todos os níveis funcionais do organismo. A seca é um fator que tem grande influência nas plantas. Algumas espécies arbóreas desenvolveram mecanismos morfológicos, fisiológicos e bioquímicos para superar eventual suprimento inadequado de água. A espécie estudada, Copaifera langsdorffii Desf. está presente em formações vegetais de transição do cerrado stricto senso para a floresta semidecídua. Essa característica possibilita analisar respostas fisiológicas perante os efeitos sazonais da seca presente nestas formações florestais. O objetivo do trabalho foi comparar as respostas fisiológicas de Copaifera langsdorffii Desf. Em relação ao contraste hídrico característico de floresta estacional semidecídua. Para compreeender os efeitos desta sazonalidade avaliamos alguns parâmetros ecofisiológicos como Condutância Estomática (gs), Conteúdo Relativo de Água (Relative Water Content –RWC), Déficit Pressão de Vapor (DPV), potencial água foliar (Ψw) e fluorescência da clorofila. As avaliações foram feitas ao final da época úmida (FEU), final da época seca (FES) e início da época úmida (IEU) ao longo de 3 períodos do dia 5:00h (Predawn – PD), 12:00h (Midday – MD) e 17:00h (Afternoon – AF). Após as análises observamos queda de gs e aumento do DPV, valores constantes de RWC e Ψw foliar no FES. Mesmo em condições de déficit hídrico as plantas não apresentaram mecanismos de fotoinibição
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In Brazil, the practice of Soccer is encouraged very early. It is common remark that parents enroll their sons into soccer schools, promoting the involvement of these children in formal practice. However, there are not many studies that assess the effects of this practice in the physical capacities of children. Thus, the question that guides this study is: children who practice soccer systematically present better development of physical, especially agility, coordination and speed? The objective of this study was to compare the performance in velocity tests, agility and coordination of boys of 10 and 11 years, category dentinho or Sub-11, practitioners of soccer in schools and non practicing. The study included male children, born in 1997 and 1998, formed two groups: group of practitioners of soccer and group of non practicing. To belong to the group of practitioners, the child was regularly engaged for at least 1 year, with 1 hour daily and 2 to 3 times per week. The participants of the group of non practicing were not involved in regular practice of soccer and were paired in weight and stature with participants of the group of practitioners of soccer. Each participant was individually assessed in neutral environment and without foreign interference. For the assessment of the agility, was utilized the (shuttle run) test. The race test 30 meters stopped was employed for the assessment of the speed. The test of fiddling between the cones was employed to measure the coordination. The time spent to perform 1 attempt to each test was used for the comparison between groups. These data were treated, initially, by descriptive statistics (mean and standard deviation) and, subsequently, were compared by means of Anova, for independent samples. The significance level was maintained at 5%. Through analysis of the results the conclusion is that the regular practice ...(Complete abstract click electronic access below)