Attainment of Brown Adipocyte Features in White Adipocytes of Hormone-Sensitive Lipase Null Mice
2008

Brown Fat Features in White Fat Cells of HSL Null Mice

Sample size: 7 publication 10 minutes Evidence: high

Author Information

Author(s): Ström Kristoffer, Hansson Ola, Lucas Stéphanie, Nevsten Pernilla, Fernandez Céline, Klint Cecilia, Movérare-Skrtic Sofia, Sundler Frank, Ohlsson Claes, Holm Cecilia

Primary Institution: Lund University

Hypothesis

Can hormone-sensitive lipase (HSL) deficiency lead to the development of brown adipocyte characteristics in white adipocytes?

Conclusion

HSL null mice exhibit features of brown adipocytes in their white adipose tissue, leading to increased energy expenditure and resistance to diet-induced obesity.

Supporting Evidence

  • HSL null mice showed a 7-fold increase in UCP-1 protein expression in white adipose tissue.
  • Energy expenditure was significantly increased in HSL null mice on a high-fat diet.
  • White adipose tissue of HSL null mice exhibited reduced mass and altered protein expression of adipogenic markers.

Takeaway

Mice without hormone-sensitive lipase can turn their white fat cells into brown fat cells, which helps them stay slim even when eating a lot of fat.

Methodology

The study involved feeding HSL null mice a high-fat diet and measuring their energy expenditure and fat cell characteristics.

Limitations

The study primarily focuses on one strain of HSL null mice, which may not represent all HSL null models.

Participant Demographics

The study involved HSL null mice, specifically focusing on both male and female subjects.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0001793

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