Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling
Rheum palmatum has been used most frequently in the weight-reducing formulae in traditional Chinese medicine. However, the components of Rheum palmatum that play the antiobesity role are still uncertain. Here, we tested the weight-reducing effect of two major Rheum palmatum compounds on db/db mouse....
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Wiley
2012-01-01
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Series: | PPAR Research |
Online Access: | http://dx.doi.org/10.1155/2012/374936 |
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author | Yu Zhang Shengjie Fan Na Hu Ming Gu Chunxiao Chu Yiming Li Xiong Lu Cheng Huang |
author_facet | Yu Zhang Shengjie Fan Na Hu Ming Gu Chunxiao Chu Yiming Li Xiong Lu Cheng Huang |
author_sort | Yu Zhang |
collection | DOAJ |
description | Rheum palmatum has been used most frequently in the weight-reducing formulae in traditional Chinese medicine. However, the components of Rheum palmatum that play the antiobesity role are still uncertain. Here, we tested the weight-reducing effect of two major Rheum palmatum compounds on db/db mouse. We found that rhein (100 mg kg−1 day−1), but not emodin, reduced the fat weight in db/db mouse. Using diet-induced obese (DIO) C57BL/6 mice, we identified that rhein blocked high-fat diet-induced obesity, decreased fat mass and the size of white and brown adipocytes, and lowered serum cholesterol, LDL cholesterol, and fasting blood glucose levels in the mice. To elucidate the underlying mechanisms, we used reporter assay and gene expression analysis and found that rhein inhibited peroxisome proliferator-activated receptor γ (PPARγ) transactivity and the expression of its target genes, suggesting that rhein may act as a PPARγ antagonist. Our data indicate that rhein may be a promising choice for antiobesity therapy. |
format | Article |
id | doaj-art-cbe64bdf11594ffc8d68b2f338db9d23 |
institution | Kabale University |
issn | 1687-4757 1687-4765 |
language | English |
publishDate | 2012-01-01 |
publisher | Wiley |
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series | PPAR Research |
spelling | doaj-art-cbe64bdf11594ffc8d68b2f338db9d232025-02-03T01:31:11ZengWileyPPAR Research1687-47571687-47652012-01-01201210.1155/2012/374936374936Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ SignalingYu Zhang0Shengjie Fan1Na Hu2Ming Gu3Chunxiao Chu4Yiming Li5Xiong Lu6Cheng Huang7School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaSchool of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaScientific Experimental Center, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaSchool of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaSchool of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaSchool of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaScientific Experimental Center, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaSchool of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, ChinaRheum palmatum has been used most frequently in the weight-reducing formulae in traditional Chinese medicine. However, the components of Rheum palmatum that play the antiobesity role are still uncertain. Here, we tested the weight-reducing effect of two major Rheum palmatum compounds on db/db mouse. We found that rhein (100 mg kg−1 day−1), but not emodin, reduced the fat weight in db/db mouse. Using diet-induced obese (DIO) C57BL/6 mice, we identified that rhein blocked high-fat diet-induced obesity, decreased fat mass and the size of white and brown adipocytes, and lowered serum cholesterol, LDL cholesterol, and fasting blood glucose levels in the mice. To elucidate the underlying mechanisms, we used reporter assay and gene expression analysis and found that rhein inhibited peroxisome proliferator-activated receptor γ (PPARγ) transactivity and the expression of its target genes, suggesting that rhein may act as a PPARγ antagonist. Our data indicate that rhein may be a promising choice for antiobesity therapy.http://dx.doi.org/10.1155/2012/374936 |
spellingShingle | Yu Zhang Shengjie Fan Na Hu Ming Gu Chunxiao Chu Yiming Li Xiong Lu Cheng Huang Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling PPAR Research |
title | Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling |
title_full | Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling |
title_fullStr | Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling |
title_full_unstemmed | Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling |
title_short | Rhein Reduces Fat Weight in db/db Mouse and Prevents Diet-Induced Obesity in C57Bl/6 Mouse through the Inhibition of PPARγ Signaling |
title_sort | rhein reduces fat weight in db db mouse and prevents diet induced obesity in c57bl 6 mouse through the inhibition of pparγ signaling |
url | http://dx.doi.org/10.1155/2012/374936 |
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