PMID: 11331627May 2, 2001Paper

Low-dose exogenous FSH initiated during the early, mid or late follicular phase can induce multiple dominant follicle development

Human Reproduction
Femke P HohmannB C Fauser

Abstract

This prospective, randomized trial in normo-ovulatory women was designed to test whether administration of low-dose exogenous FSH initiated during the early, mid to late follicular phase can induce multiple dominant follicle development. Forty normal weight women (age 19-35 years, cycle length 25-32 days) participated. A fixed dose (75 IU/day) of recombinant FSH was started on either cycle day 3 (n = 13), 5 (n = 13) or 7 (n = 14) until the induction of ovulation with human chorionic gonadotrophin. Frequent transvaginal ultrasound scans and blood sampling were performed. Multifollicular growth occurred in all groups (overall in 60%), although day 7 starters showed less multifollicular growth. Age, cycle length and initial FSH and inhibin B concentrations were similar between subjects with single or multiple follicle development. However, for all women the lower the body mass index (BMI), the more follicles emerged (r = -0.44, P = 0.007). If multifollicular growth occurred, the length of the luteal phase was reduced (P = 0.002) and midluteal serum concentrations of LH (P = 0.03) and FSH (P = 0.004) were decreased and oestradiol (P = 0.002) and inhibin A (P = 0.01) were increased. In conclusion, interference with decremental serum...Continue Reading

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Citations

Feb 1, 2002·Fertility and Sterility·Annemarie de VetBart C J M Fauser
Dec 26, 2001·Archives of Medical Research·N S Macklon, B C Fauser
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