Gynaecology & Obstetrics General 5dc0da41 The biochemical changes in established cases of Stein-Leventhal syndrome are as mentioned except: A Marked elevation of LH in contrast to FSH B Insulin resistance C Elevation of plasma testosterone D Elevation. in the level of sex hormone binding globulin (SHBG) level High-Yield Explanation In PCOS (stein leventhal syndrome) the levels of SHBG decrease.