Respiratory Characteristics of Rat Liver Mitochondria Depend on the Duration of Moderate Hypothermia.
Bull Exp Biol Med
; 169(1): 29-34, 2020 May.
Article
em En
| MEDLINE
| ID: mdl-32495174
ABSTRACT
The development of pathological or compensatory-and-adaptive reactions in homoeothermic animals during various periods of hypothermia can be caused by shifts in the respiratory functions of the mitochondria. Short-term hypothermia promoted an increase in the rates of the glutamate- and succinate-dependent respiration of mitochondria. Phosphorylation rate increased as well, while oxidative phosphorylation coefficient (P/O), respiratory control, and 2,4-DNP sensitivity depended. Changes in respiratory characteristics in the dynamics of prolonged hypothermia depends on the type of substrate. Prolongation of hypothermia to 1 h was associated with further intensification of succinate-dependent respiration, decrease in P/O and respiratory control, while prolongation of hypothermia to 3 h led to their normalization. The majority of respiratory characteristics of glutamate-dependent respiration did not change under these conditions and their levels were the same as during short-term hypothermia.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Consumo de Oxigênio
/
Mitocôndrias Hepáticas
/
Hipotermia
Limite:
Animals
Idioma:
En
Revista:
Bull Exp Biol Med
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Federação Russa