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Participação dos receptores NK-1 no locus coeruleus na resposta cardiorrespiratória e termorreguladora à hipercapnia
(Universidade Federal de São Carlos, 2009-05-29)
The locus coeruleus (LC) has been suggested as a CO2 chemoreceptor site in mammals. Substance P (SP) has been used as a marker of respiratory neurons and it plays an important role in compensatory responses to hypercapnia ...
Avaliação do papel dos receptores 5-ht2 da substância cinzenta periaquedutal de camundongos submetidos ao labirinto em cruz elevado
(Universidade Federal de São Carlos, 2008-03-28)
It is widely acknowledged that the indoleamine neurotransmitter serotonin (5-HT)
plays a dual role in the regulation of anxiety, a role that in part depends upon neuroanatomical
locus of action. Thus, whereas stimulation ...
Caracterização morfofuncional das brânquias de Arapaima gigas, durante a transição da respiração aquática para respiração aérea
(Universidade Federal de São Carlos, 2008-03-07)
The gill structure of the Amazon fish Arapaima gigas, an obligatory air breather,
was analyzed during its transition to obligatory air breathing behavior and the obtained
data was related to its breathing mode. Gills of ...
Efeitos do cloreto mercuroso sobre o desenvolvimento do tecido ósseo : propriedades físicas, químicas e biomecânicas do fêmur de ratos.
(Universidade Federal de São Carlos, 2007-06-12)
Because of the lack of data about the mercury influence on bone metabolism it is important to
investigate the bone parameters that can be affected by its effects. The aim of this study was
to evaluate the physical and ...
Núcleo central da amígdala e Núcleo parabraquial lateral no controle da ingestão de sódio
(Universidade Federal de São Carlos, 2009-12-07)
Previous studies have shown the importance of serotonergic GABAergic and aadrenergic mechanisms of the lateral parabraquial nucleus (LBPN) in the control of sodium intake. The importance of the central nucleus of the ...
Mecanismos adrenérgicos do núcleo parabraquial lateral e da área Kölliker Fuse/A7 no controle da ingestão de água e sódio
(Universidade Federal de São Carlos, 2009-06-30)
The blockade of serotonergic receptors with methysergide or the activation of α2-adrenoceptors with moxonidine into the lateral parabrachial nucleus (LPBN) increases water and 0.3 M NaCl intake in rats treated with ...
Efeitos da acidose lática nos processos da contratilidade cardíaca do teleósteo de água doce matrinxã, Brycon cephalus
(Universidade Federal de São Carlos, 2009-08-28)
In the majority of the fish species already studied, cardiac force contraction is sensitive to small changes in the extracellular pH. During intense swimming, the increased lactic acid (LA) levels significantly reduce the ...
Gavagem de NaCl hipertônico induz ingestão de bicarbonato de sódio
(Universidade Federal de São Carlos, 2009-05-17)
The literature shows that gavage of 2 M NaCl, a method to induce cell dehydration, induces water and 0.15 M NaCl intake in a two-bottle test. However, the hypertonic NaCl is also known as a mild gastric irritant, which ...
Toxicidade aguda, efeitos metabólicos e hematológicos subletais do fenol em pacu Piaractus mesopotamicus (Holmberg, 1887)
(Universidade Federal de São Carlos, 2008-11-25)
Phenol compounds and their derivatives are usually found in wastewaters. They may rise in aquatic environments from industry, sewage and country-farm wastes. In the present study we intended to determine the acute toxicity ...
Efeito do extrato bruto e da fração alcaloídica de Erythrina velutina em camundongos submetidos ao labirinto em cruz elevado e ao modelo de esquiva inibitória do tipo descida da plataforma
(Universidade Federal de São Carlos, 2009-08-11)
In the popular therapy Erythrina velutina (EV), plant family Fabaceae, is used as an analgesic, anticonvulsant, anxiolytic or sedative and combating insomnia. Previous studies performed in rodents suggest that extracts of ...