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Last Updated: Nov 17th, 2006 - 22:35:04

Breast Channel
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Latest Research : Cancer : Breast

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Insulin, physical activity, and caloric intake in postmenopausal women: breast cancer implications
Dec 31, 2004, 01:19, Reviewed by: Dr.



 
An ethnically diverse sub-sample of 2,996 mostly healthy postmenopausal women with no prior cancer history was randomly identified from the 161,809 participants in the Women's Health Initiative clinical trials and observational study. Information was collected on diet, recreational physical activity, and anthropometrics including BMI. Fasting insulin levels were determined. Using a cross-sectional design, insulin levels were then compared across quintiles of caloric intake and physical activity in linear regression model analyses controlled for BMI and other factors. Lower BMI, higher levels of physical activity, and lower caloric intake were all independently associated with significantly lower mean fasting insulin levels throughout the range of observed values. These findings suggest that reduction in BMI achieved by increasing physical activity, reducing caloric intake, or both, should lower insulin levels, providing support for clinical trials evaluating insulin level change and breast cancer risk.  

- Journal of Clinical Oncology 2004 Nov 15; 22(22): 4507-13
 

Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center (LA BioMed)

 
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To contact the principal investigator of the study, Rowan Chlebowski, M.D., Ph.D., please call David Feuerherd at 310-215-0234 / 310-222-2820 or e-mail him at [email protected].

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