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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Influence of food restriction on lipid profile and spontaneous glucose levels in male rats subjected to paradoxical sleep deprivation

Texto completo
Autor(es):
Alvarenga, Tathiana Aparecida [1] ; Tufik, Sergio [1] ; Pires, Gabriel Natan [1] ; Andersen, Monica Levy [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Fed Sao Paulo, Dept Psicobiol, Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Clinics; v. 67, n. 4, p. 375-380, 2012.
Citações Web of Science: 3
Resumo

OBJECTIVES: The purpose of this study was to determine the paired consequences of food restriction and paradoxical sleep deprivation on lipid profile and spontaneous glucose levels in male rats. METHOD: Food restriction began at weaning, with 6 g of food being provided per day, which was subsequently increased by 1 g per week until reaching 15 g per day by the eighth week. At adulthood, both rats subjected to food restriction and those fed ad libitum were exposed to paradoxical sleep deprivation for 96 h or were maintained in their home-cage groups. RESULTS: Animals subjected to food restriction exhibited a significant increase in high-density lipoprotein levels compared to animals that were given free access to food. After the paradoxical sleep deprivation period, the food-restricted animals demonstrated reduced concentrations of high-density lipoprotein relative to their respective controls, although the values for the food-restricted animals after sleep deprivation were still higher than those for the ad libitum group. The concentration of low-density lipoproteins was significantly increased in sleep-deprived animals fed the ad libitum diet. The levels of triglycerides, very low-density lipoproteins, and glucose in food-restricted animals were each decreased compared to both ad libitum groups. CONCLUSION: These results may help to illustrate the mechanisms underlying the relationship between sleep curtailment and metabolism and may suggest that, regardless of sleep deprivation, dietary restriction can minimize alterations in parameters related to cardiovascular risk. (AU)

Processo FAPESP: 98/14303-3 - Center for Sleep Studies
Beneficiário:Sergio Tufik
Linha de fomento: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
Processo FAPESP: 11/12325-6 - Efeitos da privação de sono e da síndrome da apnéia obstrutiva do sono na função reprodutiva em homens
Beneficiário:Tathiana Aparecida Fernandes de Alvarenga
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 10/14768-0 - Efeito da restrição de sono durante a gravidez sobre o comportamento materno em ratas
Beneficiário:Gabriel Natan de Souza Pires
Linha de fomento: Bolsas no Brasil - Mestrado