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Adiponectin and breast cancer risk
Christos Mantzoros1, Eleni Petridou, Nick Dessypris
1Division of Endocrinology and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
The Journal of Clinical Endocrinology and Metabolism
|March 6, 2004
Summary
Lower adiponectin hormone levels are linked to increased breast cancer risk, particularly in postmenopausal women. This finding suggests adiponectin may play a role in obesity-related cancer development.
Area of Science:
- Endocrinology
- Oncology
- Epidemiology
Background:
- Adiponectin, a hormone from fat cells, is inversely linked to insulin resistance and endometrial cancer.
- Obesity and insulin resistance are associated with breast cancer, suggesting a potential role for adiponectin.
Purpose of the Study:
- To investigate the association between adiponectin levels and breast cancer occurrence.
- To explore if adiponectin mediates the link between obesity/insulin resistance and breast cancer.
Main Methods:
- A case-control study involving 174 breast cancer patients and 167 controls.
- Serum adiponectin levels were measured and compared between cases and controls.
- Statistical analyses were performed, adjusting for potential confounders.
Main Results:
- A significant inverse association was found between serum adiponectin and breast cancer risk (OR, 0.84; 95% CI, 0.71-0.99).
- This inverse association was notable in postmenopausal women (OR, 0.82; 95% CI, 0.67-1.00) but not significant in premenopausal women.
- The findings were independent of BMI, IGF system components, leptin, and other known breast cancer risk factors.
Conclusions:
- Decreased adiponectin levels may be associated with an increased risk of breast cancer, especially in postmenopausal women.
- Adiponectin could be a mediator in the relationship between obesity, insulin resistance, and breast cancer.
- Further research is required to establish causality and elucidate the mechanisms involved.
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