Selected parameters of immunological response in hop growers during the period of intensive application of pesticides.

The aim of the study was determination of selected parameters of immunological response among hop growers and farmers in conditions of intensive exposure to means of plant protection. Survey data was collected from 238 males aged 25-70 living in the area of Wilków near Puławy (Lublin Region). Control group were males from the area of Witoszyn (Lublin Region)--53 people aged 25-70 occupied mainly with land cultivation.

Effects of an inorganic and two new organic compounds of selenium on morphologic blood elements and antioxidant status in mice.

Two organic compounds, 4-(o-tolilo-)-selenosemicarbazide of p-chlorobenzoic acid and 3-(p-chlorobenzoylamino-)-2-(o-tolylimino-)-4-phenyl-4-selenazoline were compared to the effects of the supplementation with inorganic Na2SeO3. Studies were carried out in four groups consisting of 10 female mice each of SWISS strain. Three of them were supplemented with different selenium formula at the dose of 10(-3) mg Se per g over the period of 10 day.

Comparison of selenium distribution in mice organs after the supplementation with inorganic and organic selenium compound selenosemicarbazide.

Studies on selenium organ content and its function in living organisms just like studies on other elements provide interesting results although their interpretation is not always clear. The aim of our study was to determine the concentration and distribution of selenium in several organs and tissues in mice after supplementation with our newly synthesized organic compound of selenium selenosemicarbazide (4-o-tolyl-selenosemicarbazide of o-chlorobenzoic acid) as compared to the effects of the supplementation with inorganic compounds. SWISS mice were fed with both types of compounds at the dose of 10(-3) g Se per kg for the period of 10 days.

Toxoplasmosis in rabbits confirmed by strain isolation: a potential risk of infection among agricultural workers.

The presence of anti-Toxoplasma gondii IgG antibodies in a high titer of 1:8,000 was found in 2 out of 9 examined rabbits (22.2%), kept on a farm where cases of human toxoplasmosis were noted. A virulent Toxoplasma gondii strain was isolated in mice from the brain of a seropositive rabbit that showed clinical signs of disease: apathy, weight loss, skin lesions.

Dermal and oral toxicity of malathion in rats.

The aim of the study was the evaluation of dermal and oral toxicity of malathion based on the results of histopathologic and ultrastructural tests. The standard of the pesticide - IPO 460 Malathion was used in the study. The preparation was suspended in oil emulsion.