ABSTRACT
This research work has been carried out on relationship between an increasing air pollution rate caused by dust and vehicle exhaust emissions and a rising morbidity of respiratory system malignant neoplasm in Poland in the years 1956-1982. The calculated correlation coefficients (r) are for vehicle exhausts--0.965 and for dust emissions--0.946. Those coefficients indicate the relationship between the investigated phenomena at the significance level of P less than 0.001.
Subject(s)
Air Pollutants/adverse effects , Coal/adverse effects , Dust/adverse effects , Respiratory Tract Neoplasms/epidemiology , Vehicle Emissions/adverse effects , Humans , Incidence , Poland/epidemiology , Respiratory Tract Neoplasms/mortality , Survival RateABSTRACT
The toxic effect of carbendazim was studied using as biologic indicators, Lebistes reticulatus Peters, Asellus aquaticus Racov and Daphnia magna (Cladocera) in the Laboratory of Human Epidemiology and Ecology in Rzeszów. The experiments were done in crystallizers of from 150 ml capacity for Aselius to 250 ml for young Lebistes and in tubes of 30 ml capacity for Daphnia. Each experiment was done in triplicate with 10 animals in each repetition. The observation of carbendazim toxicity was carried out after 1, 2, 3, 6, 24, 48 and 96 hours and after 5, 6 and 24 days. The method used for this purpose had been evolved by the Institute of Metereology and Hydrology in Wroclaw. For all tested aquatic organisms in acute toxicity tests of carbendazim (LC50) confidence intervals were calculated for various concentrations of the solution and time spent by the organisms in toxic environment. The study showed that carbendazim was practically non-toxic for young Lebistes and Asellus. The detailed results are presented in tables I, II and III.
Subject(s)
Benzimidazoles/toxicity , Carbamates , Fungicides, Industrial/toxicity , Water Pollutants, Chemical/toxicity , Water Pollutants/toxicity , Animals , Crustacea , Daphnia , FishesABSTRACT
In a sample of the Polish population numbering 271 persons three FUC phenotypes were encountered by cellulose acetate gel isoelectric focusing (CAGIF). The frequencies of FUC1 and FUC2 genes were 0.653 and 0.347, respectively. The FUC system has proven to be of high value for paternity testing.
Subject(s)
Isoenzymes/genetics , Polymorphism, Genetic , alpha-L-Fucosidase/genetics , Gene Frequency , Humans , Isoelectric Focusing , Phenotype , PolandABSTRACT
The frequency of locus A and B antigens in 39 patients with pustulosis palmo-plantaris and in 16 patients with psoriasis vulgaris was determined in comparison with a control group of 394 healthy subjects. The data obtained in the psoriasis vulgaris group confirmed the literature data (increased frequency of B 13 and B 17 antigens). In the pustulosis palmo-plantaris group only the patients with the histopathologically confirmed psoriasis pustulosa showed a statistically significant increase of B 12 antigen which has not been reported so far.
Subject(s)
HLA Antigens , Psoriasis/immunology , HLA-A Antigens , HLA-B Antigens , Humans , Statistics as TopicABSTRACT
Inspired by the widely discussed problem of a possible genetic background of multiple sclerosis we have undertaken a trial of determining the relationship between the hereditary trait conveyed by a single gene, i.e. the salivary secretion or nonsecretion of blood group substances, and the occurrence of this disease. The investigations have shown that in the population of western Poland the nonsecretors of blood group substances into their saliva have a statistically significant chance of developing multiple sclerosis than secretors of these substances.
