On the bio-accessibility of 14 elements in welding fumes.

The bio-accessibility of 14 elements in welding fume particulate matter was investigated in 325 personal air samples collected during welding in two shipyards and one factory producing heavy machinery. The apparent solubility in a synthetic lung lining fluid (Hatch's solution) was used as proxy for the bio-accessibility. The Hatch solubility of the different elements was highly variable with a median < 1% for Al, Fe, Pb, Ti, between 4 and 6% for Co, Cr, Ni, V, W, between 13 and 27% for Cd, Cu, Mn, Zn, and 41% for Mo.

[Results of sanitary epidemiologic examination of sanitary protective zone projects (discussion).

The authors defined main transgressions of law in sanitary epidemiologic well-being of population during sanitary epidemiologic examination of project materials for sanitary protective zones for enterprises, constructions and other objects, and during determination of their final dimensions.

A follow-up study of neurobehavioral functions in welders exposed to manganese.

Welders may be exposed to high amounts of manganese (Mn). In this study 63 welders and 65 referents were followed up with neurobehavioral tests approximately 6 years after the initial examination at baseline. The welders were exposed to the geometric mean (GM) Mn concentration of 116μg/m(3) at baseline and 148μg/m(3) at follow-up.

Biomarkers of iron status and trace elements in welders.

Iron status was studied in 137 welders exposed to a geometric mean (GM) air concentration of 214 μg/m(3) (range 1-3230) of manganese (Mn), in 137 referents and in 34 former welders. The GM concentrations of S-ferritin were 119 (3-1498), 112 (9-1277) and 98 (12-989) μg/L (p=0.24) in the three groups, respectively.

[Study of the effectiveness of drugs in experimental models of poisoning neuropathy in malathion].

For the study developed of the experimental model of toxic neuropathy, using malathion. In this was examined the effectiveness of a course of administration of pharmacological agents with different mechanisms of action: gliatilin, galantamine, memantine, and the recombinant (PRD), nerve growth factor (NGF). From all agents only galantamine, PRD and NGF significantly reduced the degree of impairment of conduction of the sciatic nerve in rats after sub-acute poisoning with malathion.