Endokrinológia és anyagcserebetegségek (benne cukorbetegség, hormonok)
Szülészet és nőgyógyászat
Introduction: There are several phenotypes of polycystic ovarian syndrome (PCOS),
and the different phenotypes may differ metabolically. Methods: In the present retrospective
study, women with PCOS having normal fasting insulin sensitivity (n = 88) were compared
with women with PCOS showing impaired insulin sensitivity (n = 46) using the HPCOS
(Hungarian Polycystic ovarian syndrome) database. Results: The impaired insulin sensitivity
group has significantly higher body mass index (BMI) and HOMA index than the normal
fasting insulin sensitivity group (BMI (kg/m2): 22.0 vs. 28.1, p < 0.0001, HOMA index:
0.96 vs. 2.38, p < 0.0001). The sex hormone binding globulin (SHBG) level was significantly
lower, and the free androgen index proved itself significantly higher in the impaired
insulin sensitivity group (p < 0.05). Linear regression analysis showed a negative
association of BMI with SHBG levels in both groups, while BMI had a positive correlation
with insulin concentrations in both groups. However, the SHBG levels were negatively
associated with insulin concentrations in the impaired insulin sensitivity group,
but this inverse association could not be observed in the normal fasting insulin sensitivity
group. Conclusions: The inverse linear correlation of SHBG with HOMA index and serum
insulin level is not evident in all PCO syndrome phenotypes, thus SHBG has limited
applicability for characterizing carbohydrate metabolism and serum insulin sensitivity.
