Jump to Main Content
- Johnson, Phyllis E.
- Journal of nutrition 1982 v.112 no.7 pp. 1414
- methodology; agricultural research; nutrition physiology; human nutrition
- ... Stable isotopes of iron, zinc, and copper can be used singly and in combination as tracers of mineral metabolism in human subjects. A mass spectrometric method of analysis that uses chelation of these metals with tetraphenylporphyrin was developed. Absorption can be determined by measuring isotope appearance in feces after a single pulse dose. The method is satisfactory for 54Fe, 67Zn, and 65Cu. D ...
- Suwarnasarn, A.; Wallwork, J.C.; Lykken, G.I.; Low, F.N.; Sandstead, H.H.
- Journal of nutrition 1982 v.112 no.7 pp. 1320
- bone formation; dietary minerals; zinc; nutrient deficiencies; rats; animal models; age; senescence; growth plate; histology; shear strength; bone resorption; scanning electron microscopy; osteoporosis; risk factors; chondrogenesis; osteoclasts
- ... The effect of zinc deficiency on shearing strength, histological changes and proline utilization of the epiphyseal plate of the tibia of the weanling male rat was studied. A diet was fed based on sprayed egg white and containing less than 2 mg of zinc per kilogram. Over 27 day, the force required to displace the epiphysis of the zinc-deficient (ZD) rats was always less than that required for pair- ...