RGD Reference Report - Constitutive and inducible expression of hepatic CYP2E1 in leptin-deficient ob/ob mice. - Rat Genome Database

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Constitutive and inducible expression of hepatic CYP2E1 in leptin-deficient ob/ob mice.

Authors: Leclercq, IA  Field, J  Enriquez, A  Farrell, GC  Robertson, GR 
Citation: Leclercq IA, etal., Biochem Biophys Res Commun. 2000 Feb 16;268(2):337-44.
RGD ID: 2313687
Pubmed: PMID:10679205   (View Abstract at PubMed)
DOI: DOI:10.1006/bbrc.2000.2125   (Journal Full-text)

In this study we have analyzed the inducible as well as constitutive hepatic expression of Cyp2e1 in a genetic model of obesity and non-insulin dependent (type II) diabetes, the leptin-deficient ob/ob mouse. In obese mice, Cyp2e1 levels were decreased compared to lean littermates. Treatment with leptin increased hepatic Cyp2e1 in obese mice to the levels observed in lean animals, but failed to alter Cyp2e1 expression in lean animals. As expected, leptin also reduced food intake in treated mice compared to saline-treated controls. In obese mice pair-fed the reduced amount of food, there was a significant increase in Cyp2e1 mRNA but no increase in Cyp2e1 protein or enzyme activity. Fasting and administration of acetone and 4-methylpyrazole increased Cyp2e1 mRNA as well as protein and activity in both obese and lean mice. The present data indicate that while Cyp2e1 is still inducible in obese mice by xenobiotics and fasting, full constitutive expression of Cyp2e1 requires leptin to be present. This effect of leptin appears to be at least partly independent of the hypothalamic control of food intake.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
type 2 diabetes mellitus  ISOCyp2e1 (Mus musculus)2313687; 2313687mRNA and protein:decreased expression:liverRGD 
type 2 diabetes mellitus  IEP 2313687mRNA and protein:decreased expression:liverRGD 

Objects Annotated

Genes (Rattus norvegicus)
Cyp2e1  (cytochrome P450, family 2, subfamily e, polypeptide 1)

Genes (Mus musculus)
Cyp2e1  (cytochrome P450, family 2, subfamily e, polypeptide 1)

Genes (Homo sapiens)
CYP2E1  (cytochrome P450 family 2 subfamily E member 1)


Additional Information