DECREASED HDL CHOLESTEROL IN SUBCLINICAL HYPOTHYROIDISM: THE EFFECT OF L‐THYROXINE THERAPY

Abstract
Thyroid function and lipid tests were measured in 29 premenopausal women with subclinical hypothyroidism. This group was compared with 41 euthyroid women matched for age and metabolic parameters. In basal condition there was no difference in thyroid hormone levels between the two groups except for TSH concentration (PPPPP<0.01). During L-thyroxine therapy this ratio returned to normal value. Decreased HDL cholesterol concentration might cause coronary heart disease reported in women with subclinical hypothyroidism.