Effect of sodium selenite and vitamin E on the renal cortex in rats: an ultrastructure study.

Autor: Hussein AM; Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia., Saleh HA; Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia., H N M; Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia. Electronic address: hesham977@hotmail.com.
Jazyk: angličtina
Zdroj: Tissue & cell [Tissue Cell] 2014 Jun; Vol. 46 (3), pp. 170-7. Date of Electronic Publication: 2014 Mar 20.
DOI: 10.1016/j.tice.2014.03.002
Abstrakt: This study examined the use of vitamin E to alleviate toxic effects of sodium selenite. Adult male albino rats (n=50) was divided into five groups. Group 1 was control, Groups 2 and 4 were treated with sodium selenite (2 mg/kg) for 2 and 4 weeks, respectively, Groups 3 and 5 were treated with sodium selenite (2 mg/kg) and vitamin E (100 mg/kg) for 2 and 4 weeks, respectively. Renal tissues were studied using anti-BCL2 and examined ultrastructurally. Positive Bax immunoreactivity was detected after 2 and more positive after 4 weeks and nearly all groups improved with co-administration of vitamin E. Ultrastructural study revealed lesions in Bowman's capsule and proximal convoluted tubules. The submicroscopic study revealed damage and necrosis of cortical structures after 2 and 4 weeks, respectively. After 4 weeks, cellular changes were seen, such as vacuolation and moderate degeneration of cells, widening of the urinary space scattered through the cortex with loss of cellular details, formation of apical buds, degeneration, and cellular rupture. Present findings disclosed an ameliorative effect of adding vitamin E to sodium selenite-induced changes in cortical tissues. Clinically, it is advised to add vitamin E to avoid selenium overdose hazards.
(Copyright © 2014 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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