Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats.

Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Research Abstract Details 

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Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Abstract Text:

Ram K Sindhu,Ja-Ryung Koo,Kunal K Sindhu,Ashkan Ehdaie,Farbod Farmand,Christian K Roberts,

The present investigation was carried out to study the expression of major cytochrome P450 (CYP) isozymes in streptozotocin-induced diabetes with concomitant insulin therapy. Male Sprague-Dawley rats were randomly assigned to untreated control, streptozotocin-induced diabetic, insulin-treated groups and monitored for 4 weeks. Uncontrolled hyperglycemia in the early phase of diabetes resulted in differential regulation of cytochrome P450 isozymes. CYP1B1, CYP1A2, heme oxygenase (HO)-2 proteins and CYP1A2-dependent 7-ethoxyresorufin O-deethylase (EROD) activity were upregulated in the hepatic microsomes of diabetic rats. Insulin therapy ameliorated EROD activity and the expression of CYP1A2, CYP1B1 and HO-2 proteins. In addition, CYP2B1 and 2E1 proteins were markedly induced in the diabetic group. Insulin therapy resulted in complete amelioration of CYP2E1 whereas CYP2B1 protein was partially ameliorated. By contrast, CYP2C11 protein was decreased over 99% in the diabetic group and was partially ameliorated by insulin therapy. These results demonstrate widespread alterations in the expression of CYP isozymes in diabetic rats that are ameliorated by insulin therapy.

Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Publishing Authors By Initials

RK Sindhu,JR Koo,KK Sindhu,A Ehdaie,F Farmand,CK Roberts,

For similar organic chemicals: nitroso compounds: nitrosourea compounds: streptozocin research abstracts see: organic chemicals: nitroso compounds: nitrosourea compounds: streptozocin research

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Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Journal Published:

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

Journal: Free radical research

VOLUME: 40

Page Numbers: 921-8

Journal Abbreviation: Free Radic. Res.

ISSN: 1071-5762

DAY: 3

MONTH: Sep

YEAR: 2006

Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9423872

Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Keywords Mesh Terms:

KEYWORDS: Streptozocin

MESH TERMS: metabolism

Chemical & Substance for Abstract: Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats. Information

Substance Name: heme oxygenase-2

Registry Number: EC 1.14.99.3

Grant and Affiliation Information for Differential regulation of hepatic cytochrome P450 monooxygenases in streptozotocin-induced diabetic rats.

AFFILIATION: UCLA School of Medicine, Charles R. Drew University of Medicine and Science, Division of Nephrology and Hypertension, Department of Internal Medicine, Los Angeles, CA 90059, USA. rksindhu@cdrewu.edu

Country: England

AGENCY: United States NHLBI

GRANT: F32 HL68406-01

ACRONYM: HL

MEDLINETA: Free Radic Res

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