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Respostas fisiológicas e bioquímicas do jeju Hoplerythrinus unitaeniatus (Characiformes, Erythrinidae) a exposição aérea
(Universidade Federal de São Carlos, 2006-03-10)
The physiological and biochemical responses to air exposure were analyzed in jeju,
Hoplerythrinus unitaeniatus at 1(T1), 6 (T6) and 12 (T12) hours of exposure and 1
(TR1) e 6 (TR6) hours after returning to water environment. ...
Biomarcadores de estresse oxidativo em tilápia do nilo, Oreochromis niloticus (Teleostei; Cichlidae), expostas ao sulfato de cobre aquático
In this study the effects of the aquatic copper (CuSO4) on biological markers
of oxidative stress were assessed in the plasma, liver, gills and heart of the Nile
tilapia, Oreocrhromis niloticus, exposed for 96 hours to ...
Manejo do cálcio intracelular e influência da temperatura sobre a contratilidade cardíaca de Synbranchus marmoratus.
(Universidade Federal de São Carlos, 2004-07-08)
The present study anlyzed the in vivo and in vitro responses of the myocardium obtained from Synbranchus marmoratus acclimated at 25 ºC and tested at 15, 25 and 35 ºC. The in vivo heart rate (fH bpm) was measured during ...
Alterações bioquímicas e cardio-respiratórias de Tilápia do Nilo (Oreochromis niloticus) frente à exposição sub-letal ao sulfato de cobre.
(Universidade Federal de São Carlos, 2005-09-23)
The present study evaluated the biochemical, hematological and cardio-respiratory responses of Nile tilapia (Oreochromis niloticus) to copper sulfate (CuSO4). A group of fish (T2; n = 8) was exposed to 50% of a CL50 (48 ...
Ajustes cardiovasculares em modelo experimental descerebrado, cascavel sul americana (Crotalus durissus)
(Universidade Federal de São Carlos, 2021-12-03)
The reptile class has considerable importance among vertebrates for investigations about the evolution of modulatory mechanisms in the cardiovascular system. Some cardiovascular studies have been performed with in situ ...
Efeitos do surfactante nonilfenol etoxilado em peixes : função cardiorrespiratória e histopatologia em Tilápia-do-Nilo, Oreochromis niloticus, em condições de normóxia e hipóxia aquáticas
(Universidade Federal de São Carlos, 2018-01-26)
Nonylphenol ethoxylate (NPE) is a nonionic surfactant component of many chemical formulations. Investigations on the effects of nonylphenol ethoxylate toxicity and its derivatives on fish mostly focus on endocrine disruption, ...
O reflexo barostático em teleósteos: controle cardiorrespiratório, influência do habitat e padronização do Método da Sequência para avaliação do ganho barorreflexo
(Universidade Federal de São Carlos, 2019-03-18)
The regulation of arterial blood pressure by the baroreflex is a sine qua non condition for the maintenance of adequate tissue perfusion and for the prevention of organic lesions in most vertebrates. Fish, as well as other ...
Distribuição e orientação dos quimiorreceptores de O2 branquiais em tilápia-do-Nilo (Oreochromis niloticus): controle das respostas cardiorrespiratórias à hipóxia
(Universidade Federal de São Carlos, 2012-08-31)
In fish the O2 chemoreceptors are mainly found in the gill arches and monitor the O2 tensions (PO2) of the inspired water (externally oriented) and/or the arterial blood (internally oriented). During hypoxia these receptors ...
Respostas cardiorrespiratórias do teleósteo de respiração aérea, Clarias gariepinus, exposto à hipóxia gradual
(Universidade Federal de São Carlos, 2010-06-25)
Air-breathing fish are classified as obligatory (when breathing obligatory atmospheric air independently of the water O2 tension) or facultative air-breather (using an air breathing organ ABO -, when theirs gills are not ...
The role of nitric oxide and adrenergic stimulation on the cardiovascular adjustments in South American rattlesnakes (Crotalus durissus)
(Universidade Federal de São Carlos, 2019-05-24)
Understanding the basis of vascular tone regulation is important to comprehend the cardiovascular physiology of any vertebrate. Recent investigations on reptiles have tried that description working on anesthetized animals. ...