Journal
ADIPOCYTE
Volume 6, Issue 3, Pages 224-233Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21623945.2017.1349042
Keywords
adipocyte precursor; adipogenesis; adipose development; adipose stem cell; adipose tissue biology; childhood obesity; metabolism; obesity; puberty
Categories
Funding
- American Diabetes Association [7-12-JF-46]
- DERC pilot project grant [DK045735]
- WHRY Naratil Pioneer Award in Women's Health Research
- NIDDK [DK090489, DK110147]
- Lo Graduate Fellowship for Excellence in Stem Cell Research from the Yale Stem Cell Center
- EMBO long-term fellowship [ALTF 132-2011]
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Over the past 2 decades, the incidence of childhood obesity has risen dramatically. This recent rise in childhood obesity is particularly concerning as adults who were obese during childhood develop type II diabetes that is intractable to current forms of treatment compared with individuals who develop obesity in adulthood. While the mechanisms responsible for the exacerbated diabetic phenotype associated with childhood obesity is not clear, it is well known that childhood is an important time period for the establishment of normal white adipose tissue in humans. This association suggests that exposure to obesogenic stimuli during adipose development may have detrimental effects on adipose function and metabolic homeostasis. In this study, we identify the period of development associated with puberty, postnatal days 18-34, as critical for the establishment of normal adipose mass in mice. Exposure of mice to high fat diet only during this time period results in metabolic dysfunction, increased leptin expression, and increased adipocyte size in adulthood in the absence of sustained increased fat mass or body weight. These findings indicate that exposure to obesogenic stimuli during critical developmental periods have prolonged effects on adipose tissue function that may contribute to the exacerbated metabolic dysfunctions associated with childhood obesity.
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