Relationship between fluoride content in bones and the age in European elk (Alces alces L.).

The relation between fluoride content in bones (jaws) and the age of elks living in Poland in areas of relatively low pollution by industrial emissions was studied. Multiple regression analysis was performed by making use of 11 mathematical models. The relationship between fluoride content in bones and the animals age is best described by square root and linear models.

Temporal changes in the fluoride levels of jaws of European deer in industrial regions of Western Pomerania, Poland.

The factories processing natural phosphates and apatites in Poland release into the atmosphere considerable amounts of fluorine compounds. Fluoride is known to accumulate in the hard tissues of animals and humans. This paper describes the determination of fluoride in mandibles of deer in the years 1982 and 1990. In recent years, the establishments have restricted their output and modernized the technology of phosphate fertilizer production. The fluoride content in jaws has decreased, particularly in those animals having their habitat in the vicinity of the two factories.

[Fluoride in the organism of mother and fetus. II. Fluoride cumulation in the organism of the fetus]. / Fluorki w organizmie matki i plodu. II. Kumulacja fluorków w organizmie plodu.

The authors present the results of measuring the content of fluoride, calcium and phosphates performed on material comprising 66 thigh bones of human fetus in 4 age groups. In the studies the division into epiphysis and metaphysis parts was taken into consideration. A prepared complication furnishes the ratios of calcium to fluoride and calcium to phosphates in epiphysis and metaphysis parts, as well as ratio of calcium in epiphysis to calcium in metaphysis parts of the studied bones in the respective age groups. It has been disclosed that the increasing fluoride cumulation in fetal bones is a signal that the human organism is likely to be exposed to fluorine action already during the fetal life period. The fluoride content in thigh bones of fetus does not correlate with the content of calcium and phosphates, which may be evidence that there is a lack of significant influence of the determined fluoride content on the mineralization process taking place in bones at this period of life.

[Fluoride concentration in mother and fetus. I. Placental transport of fluorides]. / Fluorki w organizmie matki i plodu. I. Lozyskowy transport fluorków.

Authors estimated the relationship between maternal blood fluorides concentration and umbilical venous fluorides concentration considering many parameters related to the gestation and the labor. It has been discussed the importance of placental fluorides transport.