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Journal of Clinical Endocrinology & Metabolism, Vol 44, 149-159, Copyright © 1977 by Endocrine Society

ARTICLES

Immunoreactive luteinizing hormone, follicle stimulating hormone and their subunits in human urine following gel filtration

IZ Beitins, RL Derfel, K O'Loughlin and JW McArthur

Urine collected from postmenopausal women, normal men, women and children was prepared by vacuum dialysis and kaolin extraction prior to chromatography on Sephadex G-100. Specific radioimmunoassays for LH, alpha subunit, LHbeta, FSH and FSHbeta were utilized to define the elution patterns of the urinary filtrates, extracts, 2nd IRP-HMG and postmenopausal serum. The following findings were obtained: 1) FSH eluted as a distinct immunoreactive peak whereas LH eluted more diffusely, 2) free alpha subunit was present in all urinary preparations, the 2nd IRP-HMG and postmenopausal serum, 3) free FSHbeta but not LHbeta was detectable in postmenopausal urine, and 4) an LHbeta immunoreactive fragment with an approximate molecular weight of 5000 daltons was present in all urinary preparations and the 2nd IRP-HMG but not in postmenopausal serum.




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Copyright © 1977 by The Endocrine Society