PubMed HealthSearch

PubMed · 3818905

Early postmenopausal bone loss is not associated with a decrease in circulating levels of 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, or vitamin D-binding protein.

Abstract

To study changes in the rate of bone loss before and after the menopause, 19 normal premenopausal women of the same age were followed with annual measurements of appendicular bone mass for 8 yr. Their serum estrone, estradiol, 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, and vitamin D-binding protein levels also were measured annually. The serum estrogen levels declined before the menopause, and the rate of bone loss more than doubled at the time of the menopause. There were no significant changes in the serum 25-hydroxyvitamin D, 1,25-dihydroxyvitamin LD or vitamin D-binding protein levels from the pre- to the postmenopausal period. We conclude that changes in vitamin D metabolite levels are not associated with early postmenopausal bone loss.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

J A Falch, H Oftebro, E Haug. 1987. Early postmenopausal bone loss is not associated with a decrease in circulating levels of 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, or vitamin D-binding protein.. https://doi.org/10.1210/jcem-64-4-836

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

[Primary prevention of osteopenia].

In industrialized countries the clinical and socioeconomic importance of osteoporosis has been well recognized in recent years. Various treatments have been introduced for secondary prevention in established osteoporosis. There is, however, a deficit in the primary prevention of osteopenia. In every age group physical exercise stimulates mineralization of the bone. With regular training adolescents can achieve a higher peak bone mass. In old age the physiologic decrease of bone mass can be retarded by physical exercise. A diet rich in calcium has positive effects on mineralization of the bone. Estrogens have proved efficacious in the prevention of osteoporosis in postmenopausal women. Abstinence from nicotine and alcohol contributes to the prevention of osteopenia.

Bone Diseases, Metabolic

New autosomal recessive syndrome of sparse hair, osteopenia, and mental retardation in Mennonite sisters.

We report on 2 Mennonite sisters with a syndrome of sparse hair, osteopenia, mental retardation, minor facial abnormalities, joint laxity, and hypotonia. Their asymptomatic consanguineous parents (inbreeding coefficient F = 1/64) have 6 other offspring, 3 of whom died in infancy of type II osteogenesis imperfecta (OI), and 3 of whom are normal. We analyzed collagens synthesized by cultured fibroblasts from these 2 sisters and their parents and detected no major abnormalities. Results of chromosomal and metabolic evaluations including amino acid analysis of plasma, urine, and hair were unremarkable. A literature search and survey of a computerized syndrome identification database did not disclose an identical phenotype. The sisters bear superficial resemblance to several known syndromes which we excluded on clinical and/or biochemical grounds. We conclude that they represent a new autosomal recessive syndrome, distinct from type II OI and perhaps unique to the Mennonite population or to this particular family.

Bone Diseases, Metabolic