Hepatic Microsomal Phospholipids in Rats Exposed Intratracheally to Coal Fly Ash

Overview

Journal Arch Toxicol

Specialty Toxicology

Date 1986 Feb 1

PMID 3754434

Authors

P K Srivastava

S S Chauhan

U K Misra

Affiliations

Soon will be listed here.

Abstract

The effects of intratracheal administration of fly ash (50 mg/kg body weight, daily for 7 days) on hepatic microsomal phospholipid metabolism has been studied in rats using various phospholipid precursors, viz NaH2(32)PO4, (methyl-14C)-choline, and (methyl-14C)-methionine. Fly ash administration significantly increased microsomal phosphatidylcholine (PC), and lysophosphatidylcholine (LPC). The incorporation of NaH2(32)PO4 into total liver phospholipids, PC and Phosphatidyl ethanolamine (PE) was significantly increased in fly ash-treated rats as compared to the control. Fly ash administration also increased the incorporation of (methyl-14C)-choline into microsomal PC. Incorporation of (methyl-14C)-methionine into microsomal PC was not affected. Fly ash administration decreased the per cent distribution of arachidonic acid in PC and PE and increased that of oleic acid in PC and of linoleic acid in PE.

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