[Blood and serum iron values in children at child day care centers. 1].

The parameters of iron in blood and in serum were studied with 90 children aged from 13 to 36 months from eight crèches of a large city. The investigations were performed in state of health, in state of acute respiratory disease and until the fourth week of convalescence. In the acute state iron of serum, transferrine and saturation index of transferrine are situated outside the limits of the normal state.

[The zinc concentration in the dental plaque after zinc chloride mouth rinsing in relation to previous mouth rinsings with different pH values].

The zinc content in dental plaque after mouth rinsing with 0.2% zinc chloride solution is dependent on previous mouth rinsing with different pH value. Zinc retention is strongly reduced by rinsing with citric acid solution (pH value 1.

[Serum zinc levels in children with celiac disease].

The gastrointestinal tract is an important organ in the maintenance of zinc homeostasis. We determined the serum zinc level in 140 samples from 78 children with coeliac disease in different phases. Abnormally low values were found only in children with acute coeliac disease (50% below 2 SD), but not in children receiving a gluten-free diet.

[Quantity and trace elements in callus in secondary fracture healing; animal experiment study].

The quantitative analysis of quantity elements and trace elements in the callus tissue of tibial fractures was carried out in 120 adult rabbits during the secondary bone fracture healing. The processing of the callus and the analysis methods of the inorganic elements were demonstrated. The trace elements copper and zinc are available much more compared with the quantity elements in the callus tissue during the acidotic early phase of the fracture healing.

[Levels of alkaline phosphatase, quantity and trace elements in the serum and compact bone in the rabbit].

One can find only little information about the quantitative analysis of quantity elements and trace elements in animal bone compact substance and blood serum. The authors analysed potassium, sodium, phosphorus, calcium, iron, copper, zinc, and the alkaline phosphatase in the blood serum and in the compact substance of the tibial shaft of the rabbit. The collection and the preparation of blood serum and bone for the analytic investigation and the analysis methods were shown.