Basal FSH was within the normal range (mean ± SE: 6.120 ± 0.038 IU/L in the PCOS group vs. 6.270 ± 0.194 IU/L in the control group, NS), whereas basal LH level in the PCOS group was nearly 1.6-fold higher than that in the control group (mean ± SE: 8.227 ± 0.096 IU/L vs. 5.015 ± 0.056 IU/L, P = 0.0104). This evidence concerns the gene PLOD1 and polycystic ovary syndrome.