It is well established that genetic factors play an important role in the development of both type 2 diabetes mellitus (DM2) and obesity, and that genetically susceptible subjects can develop these metabolic diseases after being exposed to environmental risk factors. Therefore, great efforts have been made to identify genes associated with DM2 and/or obesity. Uncoupling protein 1 (UCP1) is mainly expressed in brown adipose tissue, and acts in thermogenesis, regulation of energy expenditure, and protection against oxidative stress. All these mechanisms are associated with the pathogenesis of DM2 and obesity. Hence, UCP1 is a candidate gene for the development of these disorders. Indeed, several studies have reported that polymorphisms -3826A/G, -1766A/G and -112A/C in the promoter region, Ala64Thr in exon 2 and Met299Leu in exon 5 of UCP1 gene are possibly associated with obesity and/or DM2. However, results are still controversial in different populations. Thus, the aim of this study was to review the role of UCP1 in the development of these metabolic diseases.
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http://dx.doi.org/10.1590/s0004-27302012000400001 | DOI Listing |
Zhejiang Da Xue Xue Bao Yi Xue Ban
January 2025
School of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China.
Objectives: To investigate the effect of pachymic acid on brown/beige adipocyte differentiation and lipid metabolism in preadipocytes 3T3-L1 MBX.
Methods: The brown cocktail method was employed to induce 3T3-L1 MBX cells to differentiate into beige adipocytes. The impact of pachymic acid on the viability of 3T3-L1 MBX preadipocytes was evaluated using the CCK-8 assay.
Nat Commun
January 2025
Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.
Obesity poses a global health challenge, demanding a deeper understanding of adipose tissue (AT) and its mitochondria. This study describes the role of the mitochondrial protein Methylation-controlled J protein (MCJ/DnaJC15) in orchestrating brown adipose tissue (BAT) thermogenesis. Here we show how MCJ expression decreases during obesity, as evident in human and mouse adipose tissue samples.
View Article and Find Full Text PDFChem Biol Interact
January 2025
Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea. Electronic address:
Capsaicin, a polyphenol, is known to regulate energy expenditure and thermogenesis in adipocytes and muscles. However, its role in modulating uncoupling proteins (UCPs) and adenosine triphosphate (ATP)-dependent thermogenesis in muscles remains unclear. This study investigated the mechanisms underlying the role of capsaicin in modulating the UCP- and ATP-dependent thermogenesis in C2C12 myoblasts, as well as the gastrocnemius (GM) and soleus muscles (SM) of mice.
View Article and Find Full Text PDFPhytomedicine
December 2024
Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 02447, Seoul, South Korea; Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 02447, Seoul, South Korea; Kyung Hee Institute of Convergence Korean Medicine, Kyung Hee University, 02447, Seoul, South Korea. Electronic address:
Background: Beige adipocytes have physiological functions similar to brown adipocytes, which are available to increase energy expenditure through uncoupling protein 1 (UCP1) within mitochondria. Recently, many studies showed white adipocytes can undergo remodeling into beige adipocytes, called "browning", by increasing fusion and fission events referred to as mitochondrial dynamics.
Purpose: In this study, we aimed to investigate the browning effects of 4-hydroxybenzoic acid (4-HA), one of the major compounds of black raspberries.
Pak J Pharm Sci
January 2025
Department of Endocrinology, Gongli Hospital of Shanghai Pudong New Area, School of Gongli Hospital Medical Technology, University of Shanghai for Science and Technology, Shanghai, China.
Brown adipose tissue (BAT) is an ideal target organ for obesity treatment. Resinacein S is extracted from Ganoderma lucidum and can elevate Uncoupling protein 1 (UCP1) in cells, but its related effects at the animal level are not clear. The mice were fed with high-fat diet to construct obesity models and treated with Resinacein S.
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