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URL Address
<a href="http://doi.org/10.1194/jlr.M015859" target="_blank" rel="noreferrer noopener">http://doi.org/10.1194/jlr.M015859</a>
Pages
1561–1568
Issue
8
Volume
52
Dublin Core
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Title
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Aldo-keto reductase 1B7 is a target gene of FXR and regulates lipid and glucose homeostasis.
Publisher
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Journal of lipid research
Date
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2011
2011-08
Subject
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*Aldehyde Reductase/genetics/metabolism; Adenoviridae; Animal; Animals; Blood Glucose/*metabolism; Cholesterol/analysis; Cytoplasmic and Nuclear/genetics/*metabolism; Diabetes Mellitus/genetics/*metabolism/physiopathology; Disease Models; Fatty Liver/genetics/*metabolism/physiopathology; Gene Expression; Genetic Vectors; Gluconeogenesis/genetics; Homeostasis; Humans; Liver/*metabolism/physiopathology; Malondialdehyde/blood; Mice; Polymerase Chain Reaction; Receptors; Transfection; Transgenic; Triglycerides/analysis
Creator
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Ge Xuemei; Yin Liya; Ma Huiyan; Li Tiangang; Chiang John Y L; Zhang Yanqiao
Description
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Aldo-keto reductase 1B7 (AKR1B7) is proposed to play a role in detoxification of by-products of lipid peroxidation. In this article, we show that activation of the nuclear receptor farnesoid X receptor (FXR) induces AKR1B7 expression in the liver and intestine, and reduces the levels of malondialdehyde (MDA), the end product of lipid peroxidation, in the intestine but not in the liver. To determine whether AKR1B7 regulates MDA levels in vivo, we overexpressed AKR1B7 in the liver. Overexpression of AKR1B7 in the liver had no effect on hepatic or plasma MDA levels. Interestingly, hepatic expression of AKR1B7 significantly lowered plasma glucose levels in both wild-type and diabetic db/db mice, which was associated with reduced hepatic gluconeogenesis. Hepatic expression of AKR1B7 also significantly lowered hepatic triglyceride and cholesterol levels in db/db mice. These data reveal a novel function for AKR1B7 in lipid and glucose metabolism and suggest that AKR1B7 may not play a role in detoxification of lipid peroxides in the liver. AKR1B7 may be a therapeutic target for treatment of fatty liver disease associated with diabetes mellitus.
Identifier
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<a href="http://doi.org/10.1194/jlr.M015859" target="_blank" rel="noreferrer noopener">10.1194/jlr.M015859</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Aldehyde Reductase/genetics/metabolism
2011
Adenoviridae
Animal
Animals
Blood Glucose/*metabolism
Chiang John Y L
Cholesterol/analysis
Cytoplasmic and Nuclear/genetics/*metabolism
Department of Integrative Medical Sciences
Diabetes Mellitus/genetics/*metabolism/physiopathology
Disease Models
Fatty Liver/genetics/*metabolism/physiopathology
Ge Xuemei
Gene Expression
Genetic Vectors
Gluconeogenesis/genetics
Homeostasis
Humans
Journal of lipid research
Li Tiangang
Liver/*metabolism/physiopathology
Ma Huiyan
Malondialdehyde/blood
Mice
NEOMED College of Medicine
Polymerase Chain Reaction
Receptors
Transfection
Transgenic
Triglycerides/analysis
Yin Liya
Zhang Yanqiao