Navegando por Palavras-chave "carbohydrate"

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    Aggressive behaviour traits predict physiological stress responses in Nile tilapia (Oreochromis niloticus)
    (Taylor & Francis Ltd, 2009-03-01) Barreto, Rodrigo Egydio; Volpato, Gilson Luiz; Faturi, Claudia de Brito [UNIFESP]; Giaquinto, Percilia Cardoso; Freitas, Eliane Goncalves de; Castilho, Marisa Fernandes de; RECAW; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP); UNESP; Universidade Federal do Paraná (UFPR)
    This study tested whether aggressive behaviour can predict individual variation in stress responses of Nile tilapia Oreochromis niloticus. We used a mirror test to measure tendency to aggressive behaviour, and calculated the attack frequency and time until the first attack (latency) for each fish. One day later, we measured plasma cortisol and glucose, and two days later, we measured ventilatory frequency (VF) (pre-confinement responses). Immediately after the VF measure, we subjected the same fish to 30 min confinement, followed by measurements of cortisol, glucose, and VF (post-confinement responses). We found that post-confinement stress cortisol, glucose, and VF were higher than pre-confinement responses. Attack frequency was negatively correlated with VF and latency was positively correlated with baseline glucose and VF. Thus, we conclude that attack frequency and latency to a mirror reflection could be used to predict baseline levels of physiological stress indicators in Nile tilapia.
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    Carbohydrate Supplementation Influences Serum Cytokines after Exercise under Hypoxic Conditions
    (Mdpi Ag, 2016) Caris, Aline Venticinque [UNIFESP]; Silva, Edgar Tavares da [UNIFESP]; Santos, Samile Amorim dos [UNIFESP]; Lira, Fabio Santos; Oyama, Lila Missae [UNIFESP]; Tufik, Sergio [UNIFESP]; Santos, Ronaldo Vagner Thomatieli dos [UNIFESP]
    Introduction: Exercise performed at the hypoxia equivalent of an altitude of 4200 m is associated with elevated inflammatory mediators and changes in the Th1/Th2 response. By contrast, supplementation with carbohydrates has an anti-inflammatory effect when exercise is performed under normoxic conditions. The objective of this study was to evaluate the effect of carbohydrate supplementation on cytokines and cellular damage markers after exercise under hypoxic conditions at a simulated altitude of 4200 m. Methods: Seven adult male volunteers who exercised for 60 min at an intensity of 50% VO2Peak were randomly evaluated under three distinct conditions