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Drug addiction is a complex problem which leads to many somatic, psychic and social diseases. It is accompanied by the disturbed metabolism of various macro and micronutrients. The aim of this study was to assess serum magnesium concentration in drug-addicted patients and analyze whether Human Immunodeficiency Virus (HIV) infection and methadone treatment affect the level of serum magnesium in these patients. The examination was conducted in a group of 83 people - patients of Szczecin-Zdroje Psychiatric Hospital (Poland). They were 21 to 49 years old, and the mean age was 32 +/- 7 years. The control group consisted of 81 healthy individuals. Flame atomic-absorption spectrometry method was used to determine the magnesium concentration. The total serum magnesium concentration was calculated for the whole patient group, subgroups of women and men, a subgroup of people infected with HIV, and a subgroup receiving methadone substitution treatment. How magnesium behaves depending on age and addiction period, was checked. The mean concentration of magnesium in blood serum of the patients examined was 0.57 mmol/L, which was significantly lower than in the control group. In the subgroup of men it was 0.57 mmol/L, and in the subgroup of women - 0.55 mmol/L; the differences were not statistically significant. In the patient group nobody had the appropriate magnesium concentration in blood serum. No significant correlation was found between the magnesium concentration, age of the patients and addiction period. In the subgroup of seropositive people the mean concentration of magnesium was 0.55 mmol/L, and in the subgroup of non-infected patients - 0.58 mmol/L; the difference was not statistically significant. The mean concentration of magnesium in the subgroup treated with methadone was 0.59 mmol/L, and in the subgroup not involved in this type of therapy - 0.55 mmol/L; it was not a statistically significant difference.

Unlabelled: The analysis from the early 1990s showed the iodine deficiency and endemic goitre in whole country. These studies contributed to introduce in 1997 the obligatory model of iodization the table salt. The risk connected with iodine deficiency causes that the monitoring of iodine balance became a very important thing. One of the most important indicators is thyreoglobulin serum concentration. Aim of the study was determination of thyreoglobulin serum concentration as an assessment the efficacy of current model of iodine prophylaxis in random selected group of children and adolescents in Szczecin region., Material and Methods: The study was undertaken in the years 2003-2004. In random selected group of children and adolescents in Szczecin region. The patients administered vitamins or minerals enriched with iodine were excluded from a study. The study included 151 persons aged 9 to 16 years, 80 boys (53%) and 71 girls (47%). Radioimmunometric and radioimmunological methods were used for the determination of thyreoglobulin (Tg) and thyrotropin (TSH) and free thyroxine (FTJ concentrations. Iodine excretion with urine was determined on the basis of catalytic Sandell-Kolthoff reaction. Collected data were then analyzed using sophisticated computer-based statistic program., Results: In whole study group mean Tg concentration was 11.97 +/- 7.57 ng/ml. In 69 persons (45%) they were normal, in 82 (55%) were increased: 67 (44%) of them has insignificant increase (low iodine deficiency) and in 15 (11%) were in a range 20-40 ng/ml, what is connected with a mean iodine deficiency. In whole study group mean FT4 concentration was 15.59 +/- 4.72 pmol/l. In a group with normal thyreoglobulin concentrations mean FT4 was 17.69 +/- 4.53 pmol/l and was significantly higher than in a group with insignificant and mean Tg increase and were 15.36 +/- 4.43 pmol/l and 13.72 +/- 4.63 pmol/l, respectively. Mean TSH concentration was 2.23 +/- 0.9 microU/ml and mean iodine concentration was 87.2 +/- 37.5 microg/l. Between TSH serum concentrations and ioduria were no significant differences between the groups. There was significant correlation between thyreoglobulin concentration and FT4 (r(s) = -0.24) and thyrotropin (r(s) = 0.21). No correlation was found between concentration of these hormones and ioduria. Similarly, there was no correlation between thyreoglobulin concentration and iodine urinary excretion., Conclusions: Thyreoglobulin serum concentrations evaluated during the study revealed iodine deficiency in Szczecin region. Correlations between thyreoglobulin concentrations, free thyroxine and thyrotropin make a Tg determination to be more helpful indicator of iodine balance than ioduria.

The aim of this study was to assess the hair copper concentration in a population of healthy children, teenagers, and adults living in a specific region of Poland. For this purpose, 840 healthy individuals aged 1-50 yr living in Szczecin, Poland were selected for the study. They were divided into subgroups according to age and sex and the hair was analyzed for copper using a standard atomic absorption spectrometric technique. The level of copper was highest for the group including 11-15 yr old. In the other subgroups, the concentration of copper was lower than the values considered normal, suggesting the possibility of endemic copper deficiency in the inhabitants of this region.

The aim of the study was to determine the concentration of lead and cadmium in blood of 83 pregnant women from Szczecin and in umbilical cord blood of their newborns. Mean concentration of lead in women was 2.56 micrograms/dl and in umbilical cord blood was 2.01 micrograms/dl. The mean concentration of cadmium in women was 0.056 microgram/dl and umbilical cord blood was 0.21 microgram/dl. A positive correlation was noted between lead concentration in maternal and umbilical cord blood (r = 0.59). The similar correlation between cadmium concentration in maternal blood and umbilical cord blood was observed. The transplacental gradient for lead was 78.52%, and for cadmium--37.5% respectively.

Hair calcium, magnesium, zinc, copper, and iron levels have been determined in 420 children and adolescents, aged between 5 and 18 years, and inhibiting Szczecin area. Levels of these bioelements have been assayed with atomic absorption spectroscopy. Mean magnesium and calcium levels in hair of children from Szczecin area are higher than those in other regions of the country. Magnesium, calcium and zinc levels have been the lowest in hair of children aged between 5 and 9 years, increased with the age, achieving the highest values in adolescents aged between 15 and 18 years. In a 5-year age groups, hair magnesium and calcium levels have been higher in girls than in boys.

By the method of atomic absorption spectroscopy 135 children living in Szczecin were studied for the content of lead and cadmium in the hair. The obtained results were compared with the levels of other bioelements determined in the hair in the same children. The level of lead in the hair of the studied children was from 0.2 mcg/g to 9.5 mcg/g and was significantly lower than that reported by other authors, while the level of cadmium was not differing significantly. The highest lead concentration in the hair was found in five- and six-year-old children. In children in whom magnesium and zinc deficit was found, high level of lead was present in the hair.

The blood serum of 420 children and young people between 5 and 18 years of age was examined to appoint the content of calcium, magnesium, zinc and copper in it. The examination was realized by AAS method. The calcium level was from 54.16 mg/l to 594.28 mg/l; an average was 148.66 +/- 64.61 mg/l. The magnesium level was from 7.78 mg/l to 66.26 mg/l; an average was 21.84 +/- 6.36 and was higher than data in literary output for children from other regions of Poland. The zinc level was from 0.19 mg/l to 2.94 mg/l, on an average 0.92 +/- 0.30 mg/l. The copper level was from 0.23 mg/l to 2.56 mg/l; average was 1.03 +/- 0.34 mg/l. The almost shortages in these bioelements were in children between 10 and 14, the least shortages were in children between 5 and 9. There were most of all children with high zinc level in blood serum in 10-14 years old group.