title: [In vivo analysis of bone calcium by localized neutron activation of the hand in osteoporosis].
abstract: The calcium concentration of the bones of the hand measured by neutron activity was lowered in 93% of osteoporotic women aged between 50 and 60 years and in 66% of women between 60 and 70 years, whereas from the 8th decade onwards, only 5% had a bone calcium concentration of the hand less than that of controls. In the male sex, nearly 80% of osteoporotic patients, had a calcium concentration of the hand less than that of controls whatever their age. Considering the radiological criterion retained for the diagnosis of osteoporosis, the existence of at least one fracture of a vertebral body, the authors discuss the significance of these facts.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001842:Bone and Bones / Q000032:analysis*; D002118:Calcium / Q000032:analysis*; D002348:Carpal Bones / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009501:Neutron Activation Analysis; D010024:Osteoporosis / Q000378:metabolism*; D012016:Reference Values; D012737:Sex Factors
chemical_list: D002118:Calcium
vernacular_title: Analyse in vivo du calcium osseux par activation neutronique localisée de la main chez l'ostéoporotique.