Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital.

Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Research Abstract Details 

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Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Abstract Text:

K Morohashi,H Yoshioka,K Sogawa,Y Fujii-Kuriyama,T Omura,

In the preceding paper (Yoshioka, H., et al. (1984) J. Biochem. 95, 937-947), we reported that 1,1-di(p-chlorophenyl)-2,2-dichloro-ethylene (DDE) induced the phenobarbital (PB)-inducible form of microsomal cytochrome P-450 (P-450(PB-1) in rat liver. In order to study more precisely the molecular events responsible for the induction of this particular form of cytochrome P-450 by the two chemical compounds, we determined the amounts of the mRNA coding for P-450(PB-1) in the liver of rats given a single dose of PB or DDE. RNA was extracted from the livers of the treated rats and the determination of the specific mRNA was carried out by using the rabbit reticulocyte lysate translation system and by a dot hybridization method using cloned P-450(PB-1) cDNA (Fujii-Kuriyama, Y., et al. (1982) Proc. Natl. Acad. Sci. U.S. 79, 2793-2797) as the probe. The amounts of P-450(PB-1) mRNA determined by these two methods at various time points of the induction process showed good agreement. These observations further confirmed the induction of an identical form of cytochrome P-450 by DDE and PB. The maximum level of P-450(PB-1) mRNA, which was about 8-fold higher than the control level, was attained at 20-30 h and at 48-72 h after the administration of PB and DDE, respectively. The mRNA level showed a rapid decrease after the peak in the liver of PB-treated rats, but the decrease was much slower with DDE-treated rats. We conclude that DDE had a more persistent inducing effect on the mRNA level than PB, although these two compounds induced an identical form of cytochrome P-450 in the liver microsomes of the animals.

Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Publishing Authors By Initials

K Morohashi,H Yoshioka,K Sogawa,Y Fujii-Kuriyama,T Omura,

For similar animals: animal population groups: animals, inbred strains: rats, inbred strains research abstracts see: animals: animal population groups: animals, inbred strains: rats, inbred strains research

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Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 95

Page Numbers: 949-57

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Apr

YEAR: 1984

Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Keywords Mesh Terms:

KEYWORDS: Rats, Inbred Strains

MESH TERMS: genetics

Chemical & Substance for Abstract: Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital. Information

Substance Name: Cytochrome P-450 Enzyme System

Registry Number: 9035-51-2

Grant and Affiliation Information for Induction of mRNA coding for phenobarbital-inducible form of microsomal cytochrome P-450 in rat liver by administration of 1,1-Di(p-chlorophenyl)-2,2-dichloroethylene and phenobarbital.

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MEDLINETA: J Biochem

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