[The study of nickel and chromium contents in dietary supplements supporting slimming].

The market of dietary supplements develops extremely fast in the whole world, also in Poland. A great popularity is ascribed to preparations aiding slimming diet. The application of dietary supplements aimed at reducing body's weight is a result of trends connected with the popularity of a healthy lifestyle and the care about one's appearance.

Selected microelements (Cr, Zn, Cu, Mn, Fe, Ni) in slimming preparations.

Concerning the etiopathogenesis, one can speak about the following types of obesity: primary nutritional, occurring as a result of the joint action of genetic and environmental factors, and secondary obesity--which is a symptom of e.g. metabolic diseases.

[Iron and manganese in selected herbs and herbal-fruit teas].

The aim of this study was the determination iron and manganese contents in selected herbs, herbal-fruit teas and their water extracts. The samples were mineralized at temperature of 450 degrees C. The iron and manganese contents were determined by atomic absorption spectrometry (AAS) directly from the mineralizates using SOLAAR M5 appliance produced by a US-based Thermo Elemental.

[The influence of carcinogenesis in the oral cavity on the level of zinc, copper and iron in serum].

Samples of blood serum originating from the patients with squamous cell carcinoma of various parts of the oral cavity (carcinoma planoepitheliale spinocellulare: mucosae buccae, fundi oris, linguae, palati molli) were analyzed for presence of some microelements (zinc, copper and iron) using the AAS method. The findings were compared to amounts of these elements in serum of healthy persons (control samples). Significant differences among groups (with cancer and control) were qualified using nonparametric U-Mann Whitney test.

[Examination of nickel and chromium contents in selected herbs, herbal fruit teas and their infusions].

The aim of this study was to determine the contents of nickel and chromium (the trace elements that are necessary for the human organism only in specified amounts) in selected dry herbs, herbal-fruit teas and their water extracts. This examination was expected to answer the question whether infusions or decoctions may constitute the additional source of these elements, or whether the amounts of nickel and chromium included in them may be dangerous for the human organism. The samples were dry mineralized at the temperature of 450 degrees C.

[Influence of carcinogenesis in the oral cavity on the level of some bioelements in the saliva].

The aim of this study was the examination of influence the oncogenesis process of oral cavity on the level of some bioelements (Ca, Mg, K, Na, Zn, Cu, Mn, Fe) in the saliva. The saliva was sourced from patients with oral cancer (carcinoma planoepitheliale spinocellulare keratodes and akeratodes: mucosae buccae, fundi oris, linguae, palati molli). The determination of the analyzed elements were made by atomic absorption spectrophotometry method.

[Study of estrogen deficiency impact on manganese levels in teeth and mandible of rats after ovariectomy].

Deficiency of the estrogens occurring after menopause or ovariectomy leads to osteopenia and osteoporosis. It was confirmed by noninvasion examinations of bones--skeleton, maxilla mandible and teeth. Demineralization of the hard tissues were connected with loss of calcium and phosphorus, however the role of microelements is not completely known (for example role of Mn).