Artículo
Exercise and ovarian steroid hormones: their effects on mitochondrial respiration
Fecha de publicación:
02/2001
Editorial:
Elsevier Science Inc
Revista:
Life Sciences
ISSN:
0024-3205
e-ISSN:
1879-0631
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The effect of exercise on mitochondria respiration was studied in gastrocnemius muscle of ovariectomized rats, pseudopregnant rats, and estrous rats. The estrous cycles were followed by vaginal smears. Rats were made pseudopregnant (PSP) by 45 s cervical stimulation with a glass rod on the day of estrous. The treadmill protocol (21 m/min, 10 grade uphill) induced a significant decrease in state 3 oxygen consumption (oxidative phosphorylation) in estrous (0.26 +/- 0.02 vs. 0.49 +/- 0.05 microatoms O min(-1) mg protein(-1)) and ovariectomized rats (0.18 +/- 0.03 vs. 0.40 +/- 0.03 microatoms O min(-1) mg protein(-1)). In contrast, pseudopregnant and progesterone-treated ovariectomized rats did not decrease state 3 nor state 4 respiratory rates. These results show that the effect of exercise on mitochondria respiration does vary according to the hormonal status.
Palabras clave:
Exercise
,
Mitochondria
,
Respiration
,
Estrous
,
Endocrinology
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Colecciones
Articulos(IBYME)
Articulos de INST.DE BIOLOGIA Y MEDICINA EXPERIMENTAL (I)
Articulos de INST.DE BIOLOGIA Y MEDICINA EXPERIMENTAL (I)
Citación
Bussmann, Leonardo Edmundo; Gigli, Isabel; Exercise and ovarian steroid hormones: their effects on mitochondrial respiration; Elsevier Science Inc; Life Sciences; 68; 3; 2-2001; 1505-1514
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