Lack of major changes in ATPase activity in mitochondria from liver, heart, and skeletal muscle of rats upon ageing.
Mech Ageing Dev
; 84(2): 139-50, 1995 Oct 13.
Article
en En
| MEDLINE
| ID: mdl-8788241
ATP hydrolase activity has been investigated in mitochondria from liver, heart, and skeletal muscle from adult (6 months) and aged (24 months) rats. No significant changes in total ATPase activity were observed in the three tissues, but the oligomycin sensitivity was slightly decreased in heart mitochondria of aged rats. The bicarbonate-induced stimulation of hydrolytic activity was somewhat decreased in mitochondria from aged rats, particularly in liver. No significant change was observed in ATPase activity after release of the endogenous inhibitor protein, IF1. It is concluded that no activity changes to be directly ascribed to the catalytic sector F1 of the enzyme occur upon ageing, but it cannot be excluded that changes in the membrane sector F0 occur as a consequence of mtDNA mutations.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Envejecimiento
/
Mitocondrias Hepáticas
/
Adenosina Trifosfatasas
/
Músculo Esquelético
/
Mitocondrias Cardíacas
/
Mitocondrias Musculares
Límite:
Animals
Idioma:
En
Revista:
Mech Ageing Dev
Año:
1995
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Irlanda