Changes in enzyme levels in the testis and liver of the 13-lined ground squirrel (spermophilus tridecemlineatus) at the time of arousal from hibernation.
Arch Int Physiol Biochim
; 85(2): 221-32, 1977 Apr.
Article
em En
| MEDLINE
| ID: mdl-71081
ABSTRACT
Male 13-lined ground squirrels induced to emerge from hibernation resumed feeding and gained weight. The weight gain was supported by increases in the levels of glucose 6-phosphate dehydrogenase, L-alanine aminotransferase and carnitine acetyltransferase in the liver. Maturation of the testis occurred in a period of about 16 days spanning the time of induced arousal. The testes of hibernating males were characterized by higher levels of L-alanine aminotransferase, glucose 6-phosphate dehydrogenase and 3-hydroxyacyl-CoA dehydrogenase than the testes of aroused males. Hexokinase, carnitine acetyltransferase and citrate synthase levels were similar in the testes of hibernating and aroused males. 3-Hydroxyacyl-CoA dehydrogenase was more active and L-alanine aminotransferase less active in ground squirrel sperm than in rat sperm.
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Base de dados:
MEDLINE
Assunto principal:
Nível de Alerta
/
Roedores
/
Sciuridae
/
Testículo
/
Adaptação Fisiológica
/
Hibernação
/
Fígado
Limite:
Animals
Idioma:
En
Ano de publicação:
1977
Tipo de documento:
Article