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Age-dependent Modifications of Mitochondrial Proteins in Cerebral Cortex and Striatum of Rat Brain

Overview
Journal Neurochem Res
Specialties Chemistry
Neurology
Date 1989 May 1
PMID 2747833
Citations 6
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Abstract

The protein composition of free mitochondria purified from cerebral cortex and striatum during aging was analyzed by gel electrophoresis. Mitochondria were isolated from cerebral cortex and striatum of 4-, 12-, and 24-month-old rat brain. The percent amount of mitochondrial proteins after gel-electrophoretic separation was determined densitometrically. A significant decrease in the amount of two polypeptides (with molecular weights of 20 and 16 kDa, respectively) in both brain regions during aging was found. The decrease was higher in the striatum indicating a greater vulnerability of this brain area to the aging process. The age-dependent modifications of mitochondrial proteins observed may play an important role in several mitochondrial functions, such as energy transduction and transport processes as well as in structural changes occurring with age, causing altered membrane permeability and fluidity.

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References
1.
Laemmli U . Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970; 227(5259):680-5. DOI: 10.1038/227680a0. View

2.
VORBECK M, Martin A, Long Jr J, Smith J, Orr Jr R . Aging-dependent modification of lipid composition and lipid structural order parameter of hepatic mitochondria. Arch Biochem Biophys. 1982; 217(1):351-61. DOI: 10.1016/0003-9861(82)90511-2. View

3.
Fando J, Salinas M, Wasterlain C . Age-dependent changes in brain protein synthesis in the rat. Neurochem Res. 1980; 5(4):373-83. DOI: 10.1007/BF00964226. View

4.
Dwyer B, Fando J, Wasterlain C . Rat brain protein synthesis declines during postdevelopmental aging. J Neurochem. 1980; 35(3):746-9. DOI: 10.1111/j.1471-4159.1980.tb03717.x. View

5.
De Robertis E, PELLEGRINO DE IRALDI A, RODRIGUEZ DE LORES GARNAIZ G, Salganicoff L . Cholinergic and non-cholinergic nerve endings in rat brain. I. Isolation and subcellular distribution of acetylcholine and acetylcholinesterase. J Neurochem. 1962; 9:23-35. DOI: 10.1111/j.1471-4159.1962.tb07489.x. View