Rats given 4 mg. fluoride/kg./day for eight days excreted more calcium and phosphorus and retained less than the controls. In bone ash from rats given different fluoride doses for 40 days the calcium and phosphorus were maximal after a total dose of about 250 ,tg. fluoride/rat, but fell to subnormal levels after higher doses. The calcium and phosphorus levels in bone ash from rats given 750 pg....

A computerised image analyser has been used experimentally to determine its possible usefulness in quantifying bone density. Rats were prepared for this purpose and ash weight/volume readings were obtained on femora which had been radiographed and studied to estimate radiographic density by means of the image analyser. The findings indicated that rats can be prepared by administering oestradiol...

The objective of this study was to determine if supplement withdrawal (omission of dietary vitamin and trace mineral premixes and 2/3 of inorganic P) 28-d preslaughter and the feeding of wheat middlings (dietary concentrations of 5, 15, or 30% from weaning to 16 kg, 16 to 28 kg, and 28 kg to slaughter, respectively) affect bone metabolism, bone strength, bone density, and the incidence of bone ...

See the related ASH 50th Anniversary Review articles under the LYMPHOMA AND MYELOMA section of the publication ASH 50th Anniversary Reviews: A Salute to the American Society of Hematology. Five decades ago myeloma was an enigmatic disease recognized as having plasma cell infiltration in the bone marrow (BM) and presence of recently identified clonal immunoglobulin heavy and light chains in seru...

Goose bone is traditionally applied for many ailments including fractures. that consists of calcium phosphate plays a major role in regeneration. In this study, the production goose ash (GBA) was translated from traditional process into one laboratory scale via thermal and mechanical methods. The GBA thermally processed calcination at 300 °C 900 °C. differences physicochemical properties betwee...

Sixty-nine-week-old brown egg layers were either maintained in cages or moved to a litter-floored aviary system. After 10 or 20 d, birds were selected at random from within each environment, and their tibiae removed. After drying, bones were measured and then subject to various physical measurements of strength and elasticity. Bone ash and bone calcium content were also measured. Birds maintain...

The uranium content of several human tooth, bone and soft tissue samples was determined by the fission tract method. The average uranium content in teeth, bones and soft tissues were 6.7, 8.4 and 64 ppb ash, respectively. The distribution of uranium in bones is less uniform than that of teeth, and the uranium content of soft tissues is generally higher than that of teeth and bone. The presence ...

BELONJE, P. C., 1977. An investigation into possible methods of assessing the intake of calcium and phosphorus by grazing sheep. Onderstepoort Journal of Veterinary Research 45, 7-22 (1978). A study was made, over a period of 29 weeks, of the interrelationship between calcium (Ca) and phosphorus (P) levels while monitoring those of magnesium (Mg) in ovine bone, soft tissues , faeces, urine and ...

Osteoporosis is a metabolic bone disease, characterized by increased porosity of the skeleton resulting from reduced bone mass, the associated structural changes predispose the bone to fracture. The drug discovery process in this direction is very attractive, because of non-availability of suitable, safe and effective means for the management of this condition. The objective of the study was to...

The purpose of this study was to investigate the effects of varying ratios of n-6 to n-3 fatty acids in the diets of White Leghorn chickens on tibia bone characteristics [bone mineral density, bone mineral content (BMC), ash bone mineral content, bone morphology, and cortical thickness] and tibia bone strength parameters (ultimate force, bending stress, maximum strain, Young's modulus of elasti...