[The effect of rosiglitazone on plasma adiponectin and resistin levels in obese PCO woman--preliminary report].

Aim Of The Study: to determine the effect of rosiglitazone on plasma adiponectin and resistin levels in obese, non-diabetic polycystic ovary (PCO) subjects and relationship between circulating adipocytokines, insulin resistance and lipid profile.

Material And Methods: PCOS women were treated 6 months with 4mg rosiglitazone daily (the blood was tested before and 3; 6 months after treatment). Plasma resistin, adiponectin, total-cholesterol, triglycerides, HDL- and LDL-cholesterol levels were examined in 12 obese PCO women (age 18-45) with BMI >30. Twelve healthy, obese individuals with BMI >30 were controls. We measured peripheral insulin resistance using FIRI and Quicki indexes derived from fasting insulin and glucose levels, and insulin area under the curve during an oral glucose challenge.

Results: BMI, WHR, % of total fat, FIRI, Quicki and fasting insulin were comparable in both groups. We observed significantly lower adiponectin and resistin plasma levels in PCO woman. Fasting plasma insulin level was similar in both groups and didn't change after treatment. We noticed decrease in insulin area under the curve after 3 and 6 months of rosiglitazon (respectively p = 0.029 and 0.03). There were decreases after treatment in BMI and WHR and beneficial changes in lipid profile--but not significant. Plasma adiponectin level increased after 6 months of treatment (p = 0.03) but plasma resistin level didn't change. We revealed negative correlation between adiponectin, BMI and fasting glucose.

Conclusion: Our data confirm that in obese, hyperinsulinemic PCO women adiponectin and resistin levels were decreased. After therapy we observed increase in adiponectin level and no change in resistin level.