Abstract | OBJECTIVE: To examine whether weight loss-induced changes in in vitro basal lipolysis of subcutaneous abdominal and femoral fat cells were related to those in plasma organochlorine levels. DESIGN: SUBJECTS: Seventeen men and 20 women (age 36-50 y, body fat 25-50%). MEASUREMENTS: RESULTS: Both genders showed a similar reduction in body weight (approximately 11 kg) in response to treatment, although men lost significantly more fat mass than women (mean+/-s.d., 9.4+/-4.1 vs 5.9+/-5 kg, respectively, P<0.05). Mean basal fat cell lipolysis did not vary before and after weight reduction, regardless of depots and genders. In response to weight loss, significant increases of all organochlorines investigated were observed in men, whereas only p,p'-DDE, Aroclor 1260, PCBs 153 and 180 significantly rose in women. In men, higher the increase in basal lipolysis of subcutaneous abdominal or femoral adipocytes, greater the rise in plasma levels of most pollutants ( HCB, Aroclor 1260, PCBs 118, 138 and 153) was in response to weight loss (0.51<r<0.70, P<0.05). Similar positive correlations were also observed in women but only a few reached statistical significance ( p,p'-DDE, PCBs 118 and 180). CONCLUSION: The weight loss-induced increase in plasma pollutant levels is related to the rise in subcutaneous abdominal and femoral adipocyte basal lipolysis, especially in men.
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Authors | P Imbeault, J Chevrier, E Dewailly, P Ayotte, J P Després, A Tremblay, P Mauriège |
Journal | International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity
(Int J Obes Relat Metab Disord)
Vol. 25
Issue 11
Pg. 1585-91
(Nov 2001)
England |
PMID | 11753575
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Pesticides
- Polychlorinated Biphenyls
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Topics |
- Abdomen
- Adipocytes
(metabolism)
- Adult
- Female
- Humans
- Lipolysis
- Male
- Middle Aged
- Obesity
(blood)
- Pesticides
(blood)
- Polychlorinated Biphenyls
(blood)
- Thigh
- Weight Loss
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