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Basic indicators of calcium and bone metabolism and the calcium tolerance test were investigated in patients with untreated hyperthyroidism, Hashimoto's thyroiditis, after total thyroidectomy and in controls. In florid hyperthyroidism elevated values of indicators of bone new formation (osteocalcin and bone fraction of alkaline phosphatases) and of bone(More)
BACKGROUND Calcitonin has an important role in the treatment of post-menopausal osteoporosis. The authors investigated the effect of calcitonin administration or calcitonin administration supplement with a diet rich in collagen proteins on markers of bone metabolism. METHODS AND RESULTS A group of 108 patients with postmenopausal osteoporosis (BMD lower(More)
Liquid chromatographic and electrophoretic methods applicable to the separation of collagen and its fragments are reviewed. Special attention is paid to the separation of both stabile and labile crosslinking elements. Identification procedures exploiting the mapping of either collagen alpha-chains or of cyanogen bromide fragments are discussed. These(More)
Tolfenamic acid (Clotam) has been used in the therapy of rheumatic diseases for some years. Regarding its chemical structure it belongs to the group of fenamates. The effect of tolfenamic acid on the synthesis of collagen and proteoglycans in granulation tissue, skin or cartilage of rat weanlings was tested and compared with the action of mefenamic acid.(More)
Immunofluorescence studies have shown the presence of collagen type III in addition to types I and II in osteoarthrotic cartilage. The presence of collagen type III was verified biochemically: collagen was isolated and purified from the pronase digest of osteoarthrotic cartilage. Mixtures of different collagen types were fractionated first by two different(More)
The content of gamma-carboxyglutamic acid (gla) was determined in rat femoral bone and kidney cortex in rachitic and vitamin D treated animals. It was demonstrated that the level of gla is decreased in vitamin D depleted animals both in kidney cortex and femoral bone. Supplementation of vitamin D deprived animals with this vitamin resulted in an increase in(More)