Wyniki wyszukiwania - Biblioteka Nauki

1

Effects of air pollution on red blood cells in children

100%

Nikolic M. , Nikic D. , Stankovic A.

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2008

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tom 17

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nr 2

267-271

EN

The aim of our study was to evaluate any effects in red blood cells in children exposed to air pollution. The subjects were 354 pupils, aged 11-14 years, living for more than ten years in the same home. The exposed group of children (n=215) were attending school in a city area with a high level of air pollution, while the children in the comparison group (n=139), designated the non-exposed group, were attending school in an area with a lower level of air pollution. The mean value of hemoglobin (g/mL) for exposed children was 10.97 ±0.38 and for non-exposed children 11.09 ±0.78. The diagnosis of iron deficiency anemia was made using the pre-defined criteria. The air concentrations of black smoke, nitrogen dioxide, sulfur dioxide and lead in sediment matter were determined from 1990 to 2000. The red blood cell count and average of hemoglobin blood levels of exposed children differ significantly from those of the non-exposed (P<0.001). There was also a significant difference in the prevalence of anemia in children exposed to higher concentrations of air pollutants (RR =3.76; 95% CI:2.06-6.88). These findings suggest that air pollution could have negative effects on red blood cells in children.

2

Effects of air pollution on blood pressure of pregnant women

100%

Stankovic A. , Nikolic M. , Arandjelovic M.

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nr 2

EN

The aim of our study is to evaluate effects on blood pressure of pregnant women exposed to air pollution. The subjects were 654 pregnant women, aged 25-40 years, living for more than five years in the same home. The exposed group of pregnant women (n=348) live in an urban area with a high level of air pollution, while the pregnant women (n=306) in the comparison group, designed as a non-exposed group, live in an area with a lower level of air pollution. The air concentrations of black smoke, sulfur dioxide, and lead in sediment matter were determined in the period from 2004 to 2008. The diagnosis of high blood pressure is made using pre-defined criteria. No effect of air pollution exposure on pregnancy-induced hypertension was found in multivariate logistic regression analysis (p>0.05; 95% CI: 0.937-2.219). However, further research using more rigorous measures of exposure to air pollution as well as additional measures of blood pressure in pregnancy are needed to confirm the relationships.

3

Genetic characteristics of three Baltic Zostera marina populations

88%

Gonciarz M. , Wiktor J. , Tatarek A. , Weglenski P. , Stankovic A.

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nr 3

4

Black smoke and sulphur dioxide in the air as risk factors for dry eye disease

75%

Stankovic A. , Babic-Stankovic G. , Nikolic M. , Radulovic O. , Markovic R. , Andjelkovic Apostolovic M. , Bonic D.

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nr 4

EN

Juglone (JU; 5-hydroxy-1,4-naphthoquinone) is an allelochemical synthetized by a wide range of Juglandaceae members. This compound evokes a wide array of detrimental effects in susceptible acceptor plants, including growth inhibition and impairments in the course of biochemical and physiological processes. Therefore, juglone may be considered as a potential bioherbicide in weed control in cereal crops. The purpose of our study was to determine the influence of JU treatment on the content of superoxide anion radical (O2•−) - sensitive and early marker of oxidative stress, and the activity of superoxide dismutase (SOD) - enzyme that functions as a crucial component of the first line antioxidative defense in seed tissues. In the study we tested seeds of four selected plant species of cereal agrosystem: corn poppy (Papaver rhoeas L.), corn cockle (Agrostemma githago L.), spring wheat (Triticum aestivum L., cv. Nawra), and spring oat (Avena sativa L., cv. Maczo). Additionally, the allelopathic influence of JU on seed germination of the studied plant species was investigated. The seeds were exposed to three examined juglone concentrations: 0.001, 0.1, and 10 mM (4% methanoldeionized water solutions), whereas the control seeds were treated with aqueous methanolic solutions (4%). Obtained results evidenced much more severe suppression of germination process and robust generation of superoxide anion radical in the tested weeds, compared to the cereals, and the crucial role of superoxide dismutase in limiting the juglone-induced oxidative stress in the studied seeds.

5

Rhizon, 2001-2003. Preliminary Report on the Excavations of the Center for Archaeological Research - Novae, Warsaw University

75%

Dyczek P. , Kowacevic V. , Lutovac P. , Martinovic J. , Reclaw J. , Stankovic A.

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tom 55

101-118

EN

In 2001 Polish archaeological mission started excavations at Rhizon (now Risan), Montenegro, the ancient capital of Illyrian queen Teuta. Work concentrated in three sections of the town: at the entrance to the modern hospital, where a Roman villa with mosaic pavements was unearthed, in the location of Carine (another 3rd cent. BC Roman villa complex including a well-preserved bathroom), and near the orthodox church in the place of a medieval necropolis; an 11th cent. AD masonry tomb with 5 inhumation burials was explored. In the vicinity of Risan a fragment of Roman road was located.