Coronary heart disease in women: why the disproportionate risk?

Area of Science:

• Cardiovascular disease
• Endocrinology
• Diabetes mellitus

Background:

• Women with diabetes have a disproportionately higher risk of coronary heart disease (CHD) compared to men.
• This disparity is partly explained by more unfavorable CHD risk factor patterns in women with type 2 diabetes.

Purpose of the Study:

• To investigate the factors contributing to the increased CHD risk in women with diabetes, particularly comparing type 1 and type 2 diabetes.
• To understand the role of lipid profiles, blood pressure, and body fat distribution in this elevated risk.

Main Methods:

• Comparative analysis of CHD risk factors in diabetic men and women across different diabetes types (type 1 and type 2).
• Review of existing evidence on lipid profiles, blood pressure, and body fat distribution in diabetic populations.

Main Results:

• In type 2 diabetes, adverse risk factor patterns explain much of the higher CHD risk in women.
• In type 1 diabetes, men exhibit a cardioprotective lipid profile, but women do not. Women also show evidence of altered body fat distribution and higher blood pressure.
• The potential link to increased insulin resistance in type 1 diabetic women is suggested but remains debated.

Conclusions:

• The usual cardioprotective effect of being female does not extend to women with diabetes.
• Early and aggressive risk factor intervention is crucial for diabetic women to mitigate their elevated CHD risk.