Simple Centrifugal Filtration Assembly for Preparation of Solid Samples for Radioassay

Bronner, Felix; Jernberg, Nils A.

doi:10.1021/ac60123a609

Cited by 7 publications

(1 citation statement)

References 3 publications

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“…The error of replicate analyses including conversion to ash was held to i 5% SD. Ca45 analysis was done on samples of Ca oxalate (11) counted in an automatic flow counter (10). Ca47 analysis was done in a scintillation well counter connected to a pulse-height analyzer and automated print-out device.…”

Section: Methodsmentioning

confidence: 99%

Quantitation of Calcium Metabolism in Postmenopausal Osteoporosis and in Scoliosis*

Bronner¹,

Richelle²,

Saville³

et al. 1963

J. Clin. Invest.

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Over the past several years, work by a number of investigators [reviewed in (1)] has led to the development of a kinetic approach to the study of Ca metabolism. Because the studies have not been numerous and because of differences in experimental technique, results and interpretations based on them have differed. For example, some investigators (2-5) failed to find a difference in Ca metabolism in patients with osteoporosis as compared with normal individuals, whereas others (6) report such differences.The purpose of this report is to present findings in persons of different ages, including women with and without osteoporosis, and young people with scoliosis, studied before and after immobilization in a plaster cast. The findings were obtained by a consistent mode of analysis applied to data collected in a uniform manner. From the results, relationships have been derived between Ca absorption from the intestine and Ca deposition in bone, and between Ca deposition in and removal from bone. These relationships have been used to describe Ca metabolism as a system of interdependent vectors in dynamic equilibrium, and this description has been applied to postmenopausal osteoporosis and the events following immobilization. METHODS

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Section: Methodsmentioning

confidence: 99%