Effect of Vitamin E on the Content and Polypeptide Composition of Glial Fibrillary Acidic Protein from the Rat Brain under Conditions of Aluminum Chloride Intoxication

被引:0
|
作者
Nedzvetsky, V. S. [1 ]
Tikhomirov, A. A. [1 ]
Nerush, P. A. [2 ]
机构
[1] Dnepropetrovsk Natl Univ, Dnepropetrovsk, Ukraine
[2] Minist Publ Hlth Ukraine, Dnepropetrovsk State Med Acad, Dnepropetrovsk, Ukraine
关键词
astroglia; intermediate filaments; glial fibrillary acidic protein (GFAP); aluminum chloride; vitamin E;
D O I
10.1007/s11062-005-0039-x
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We studied the effects of isolated and combined chronic (21 days) introductions of aluminum chloride and vitamin E (alpha-tocopherol) on the polypeptide composition and content of glial fibrillary acidic protein (GFAP) in different brain structures of rats. Injections of AlCl3 solution (12 mg/kg, i.p., daily) caused the appearance of low-molecular (47 to 38 kdalton) polypeptides and an increase in the content of GFAP in cytoskeletal fractions to 160 to 220%, as compared with the control. Introduction of vitamin E within the same interval provided significant normalization of the GFAP content in the brain of animals injected with AlCl3 and to a considerable extent prevented the appearance of degraded polypeptides in the GFAP composition. We discuss the prospects of using vitamin E as an antioxidant for the correction of Al3+-induced pathological processes in the CNS.
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页码:13 / 18
页数:6
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