Postnatal development of the complexes of the electron transport chain in isolated rat brain mitochondria

Bates, T E and Almeida, A and Heales, S J and Clark, J B (1994) Postnatal development of the complexes of the electron transport chain in isolated rat brain mitochondria. Developmental neuroscience, 16 (5-6). pp. 321-7. ISSN 0378-5866

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Official URL: http://dx.doi.org/10.1159/000112126

Abstract

The postnatal development of the complexes of the electron transport chain in isolated rat brain mitochondria were investigated. Nonsynaptosomal brain mitochondria were isolated from rats aged 1-60 days, and the activities of mitochondrial complexes I, II-III, IV, V and citrate synthase were measured. There was a significant increase in the activity of complex I from postnatal day 1 to day 21, and in the activities of complex II-III, complex IV and citrate synthase from postnatal day 1 to day 60. In contrast, the activity of complex V increased significantly between postnatal day 1 and day 10 where it attained adult levels. These data are consistent with the increasing demand for mitochondrial ATP production as the brain develops and as aerobic glycolysis becomes the major pathway for energy production.

Item Type:Article
Additional Information:The postnatal development of the complexes of the electron transport chain in isolated rat brain mitochondria were investigated. Nonsynaptosomal brain mitochondria were isolated from rats aged 1-60 days, and the activities of mitochondrial complexes I, II-III, IV, V and citrate synthase were measured. There was a significant increase in the activity of complex I from postnatal day 1 to day 21, and in the activities of complex II-III, complex IV and citrate synthase from postnatal day 1 to day 60. In contrast, the activity of complex V increased significantly between postnatal day 1 and day 10 where it attained adult levels. These data are consistent with the increasing demand for mitochondrial ATP production as the brain develops and as aerobic glycolysis becomes the major pathway for energy production.
Keywords:development, mitochondria, brain, electron transport chain, enzymes
Subjects:A Medicine and Dentistry > A100 Pre-clinical Medicine
B Subjects allied to Medicine > B200 Pharmacology, Toxicology and Pharmacy
B Subjects allied to Medicine > B140 Neuroscience
C Biological Sciences > C141 Developmental Biology
Divisions:College of Science > School of Life Sciences
ID Code:5369
Deposited By: Timothy Bates
Deposited On:17 May 2012 19:04
Last Modified:17 May 2012 19:04

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