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Erschienen in: Endocrine 3/2017

09.01.2017 | Original Article

Influence of resveratrol on endoplasmic reticulum stress and expression of adipokines in adipose tissues/adipocytes induced by high-calorie diet or palmitic acid

verfasst von: Li Chen, Ting Wang, Guanjun Chen, Nuojin Wang, Li Gui, Fang Dai, Zhaohui Fang, Qiu Zhang, Yunxia Lu

Erschienen in: Endocrine | Ausgabe 3/2017

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Abstract

Purpose

This study aimed to determine whether resveratrol treatment alleviates endoplasmic reticulum stress and changes the expression of adipokines in adipose tissues and cells.

Methods

8-week-old male C57BL/6 mice were fed a high-calorie diet (HCD group) or high-calorie diet supplemented with resveratrol (high-calorie diet  + resveratrol group) for 3 months. Insulin resistance, serum lipids and proinflammatory indices, the size and inflammatory cell infiltration in subcutaneous and visceral adipose tissues were analyzed. The gene expressions of endoplasmic reticulum stress, adipokines, and inflammatory cytokines were determined. The induced mature 3T3-L1 cells were pretreated with resveratrol and then palmitic acid, and the gene expressions of endoplasmic reticulum stress, adipokines, and inflammatory cytokines were determined.

Results

Subcutaneous and visceral adipose tissues in the high-calorie diet-fed mice exhibited adipocyte hypertrophy, inflammatory activation, and endoplasmic reticulum stress. Resveratrol alleviated high-calorie diet-induced insulin resistance and endoplasmic reticulum stress, increased expression of SIRT1, and reversed expression of adipokines in varying degrees in both subcutaneous and visceral adipose tissues. The effects of resveratrol on palmitic acid-treated adipocytes were similar to those shown in the tissues.

Conclusions

Resveratrol treatment obviously reversed adipocyte hypertrophy and insulin resistance by attenuating endoplasmic reticulum stress and inflammation, thus increasing the expression of SIRT1 and inverting the expression of adipokines in vivo and in vitro.
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Metadaten
Titel
Influence of resveratrol on endoplasmic reticulum stress and expression of adipokines in adipose tissues/adipocytes induced by high-calorie diet or palmitic acid
verfasst von
Li Chen
Ting Wang
Guanjun Chen
Nuojin Wang
Li Gui
Fang Dai
Zhaohui Fang
Qiu Zhang
Yunxia Lu
Publikationsdatum
09.01.2017
Verlag
Springer US
Erschienen in
Endocrine / Ausgabe 3/2017
Print ISSN: 1355-008X
Elektronische ISSN: 1559-0100
DOI
https://doi.org/10.1007/s12020-016-1212-2

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