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  • Title: Measurement of serum levels of exogenously administered FSH and LH during ovulation induction therapy.
    Author: Mallya S, Abdulla UA, Davis JC.
    Journal: Gynecol Endocrinol; 1993 Sep; 7(3):167-71. PubMed ID: 8291453.
    Abstract:
    We conducted a prospective study of blood levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) following daily intramuscular injection of human menopausal gonadotropin (hMG) containing equal proportions of FSH and LH. Blood samples were collected on alternate days and the resulting changes in the blood levels of the ovarian hormone estradiol were also monitored. Twenty-eight consecutive patients with polycystic ovary syndrome who were between the ages of 25 and 35 years and attending our infertility clinic for ovulation induction therapy and assisted pregnancy were studied. Polycystic ovary syndrome was diagnosed on laparoscopy and as evidenced by high serum LH which was three times greater than FSH in the follicular phase of the menstrual cycle. A male factor for infertility was excluded. Twenty-five out of 28 women (89.3%) receiving hMG responded to therapy by a rise in serum estradiol level (> 1200 pmol/l on day 9). Of the 25 women who responded to hMG, four had live single babies (16%). All four women showed a cumulative rise in mean serum FSH with treatment when measured by standard radioimmunoassay, reaching statistical significance on day 5 (p < 0.05). The remaining 21 who failed to become pregnant showed variable changes in mean serum FSH with a sharp rise on day 3 (p < 0.02) and a significant fall on day 7 (p < 0.02). However, mean serum LH measured by standard radioimmunoassay in all women remained unchanged throughout the period of treatment.(ABSTRACT TRUNCATED AT 250 WORDS)
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