Feeding Scallop Shell Powder Induces the Expression of Uncoupling Protein 1 (UCP1) in White Adipose Tissue of Rats

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  • LIU Yun Chun
    Department of Applied Chemistry, Muroran Institute of Technology
  • SATOH Keita
    Department of Applied Chemistry, Muroran Institute of Technology
  • HASEGAWA Yasushi
    Department of Applied Chemistry, Muroran Institute of Technology

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Abstract

Previously we found that the organic components in scallop shell promote lipolysis in differentiated 3T3-L1 and C3H10T1/2 adipocyte cells, and that incorporating scallop shell powder into the diet of rats reduced the amount of white adipose tissue. In this study, we used RT-PCR to investigate the effect of ingesting scallop shell powder on the gene expression profile of uncoupling proteins (UCPs) regulating energy metabolism in rats.<BR>Feeding of scallop shell powder increased mRNA levels of UCP1 and UCP2 in white adipose tissue. By contrast, scallop shell powder had no effect on the expression of UCP1 in brown adipose tissue, although the expression level of UCP2 mRNA decreased significantly. These results suggest that feeding scallop shell powder increases gene expression of UCP1 that may regulate energy metabolism in white adipose tissue, resulting in the observed reduction in weight of white adipose tissue.

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