title: Assessment of bone turnover by measurement of serum estradiol and interleukin-6.
abstract: This study was done in a trial to understand how estrogen performs its antiosteoporotic action. Twenty six postmenopausal women and twenty premenopausal women were included in the study. We measured serum estradiol, interleukin 6 (IL-6) and osteocalcin. We found a highly significant difference in serum estradiol and IL-6 between the two groups. In postmenopausal group, there was a negative significant correlation between estradiol level and both IL-6 and osteocalcin levels. Also there was a significant positive correlation between serum osteocalcin and IL-6. For the premenopausal group of patients there was no significant correlation between any of the parameters. When correlating the parameters of all the 46 patients, there was a highly negative significant correlation between estradiol level and IL-6 and a negative significant correlation between estradiol level and osteocalcin, while there was a positive significant correlation between osteocalcin and IL-6. We can conclude that estrogen exerts its antiosteoporotic effect by modulating the production of IL-6, thus inhibiting its stimulatory effect on osteoblasts.
authors.affiliation: Microbiology and Immunology Department, Ain Shams University.
authors.forename: N M
authors.initials: NM
authors.lastname: Fahim
authors.forename: M M
authors.initials: MM
authors.lastname: Abd el Hakim
authors.forename: M L
authors.initials: ML
authors.lastname: Zamzam
mesh_terms: D000328:Adult; D000368:Aged; D004534:Egypt; D004958:Estradiol / Q000032:analysis* / Q000097:blood; D004967:Estrogens; D005260:Female; D006801:Humans; D015850:Interleukin-6 / Q000032:analysis* / Q000097:blood; D008875:Middle Aged; D015663:Osteoporosis, Postmenopausal / Q000175:diagnosis*
chemical_list: D004967:Estrogens; D015850:Interleukin-6; D004958:Estradiol