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The effect of endo- and exogenous melanin on Zn2 and Co2 elimination and distribution in mice

100%

Nogaj P. , Buszman E. , Swiatkowska L. , Wilczok T.

nr 1

The content of endogenous melanin in white Balb c and black C-57 Bl. mice affected Zn2+ and Co2+ accumulation, elimination and distribution following intraperitoneal administration of these ions. Elimination of Co2+ ions was significantly greater in white mice than in black mice. Accumulation of Zn2+ was higher than that of Co2+ and did not depend on melanin content in mice. The same response was observed upon administration of exogenous melanin. Both ions accumulated mainly in spleen and heart irrespective of melanin content.

Pharyngeal tonsil as new biomarker of pollution on example of barium

76%

Nogaj E. , Kwapulinski J. , Misiolek H. , Lisowska G. , Rostkowska-Nadolska B. , Bien S. , Nogaj P.

nr 1

The mainly purpose of our study was to determine Ba in pharyngeal tonsils of children living in the influence of dust emission from power stations in the following regions in southern Poland: Jura Krakowsko-Częstochowska, Upper Silesia, and Krakow. The concept of investigation was based on the fact of high levels of Ba in suspended dust emitted by power stations (about 800 μg/g). Moreover, these children are exposed to secondary emissions of Ba from soil dust (500-1,000 μg/g) during outdoor recreation. Ba concentrations in pharyngeal tonsils may be involved in indicating the pollution of some plants. Ba concentrations in pharyngeal tonsils were determined using the ACP-AES method. The characteristic feature of pharyngeal tonsils is their ability and high specificity of Ba accumulation from inhaled air. The average level of Ba concentration in tonsils was similar in all groups of children (0.03-0.09 μg/g) with the exception of boys from Jura Krakowsko Częstochowska – 0.22 μg/g. The differences of Ba content in pharyngeal tonsils measured as the maximum concentration range depends on sex and place of residence. Moreover, the interaction between Ba with other pollution elements was described.

Aluminium as trace element in pharyngeal tonsils

76%

Nagoj E. , Kwapulinski J. , Misiolek M. , Nogaj P. , Olender J. , Kawalski H.

nr 3

621-626