Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 3

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Chemical exposure early in life and the neurodevelopment of children – an overview of current epidemiological evidence

100%
Jurewicz J., Polanska K., Hanke W.
Annals of Agricultural and Environmental Medicine
|
2013
|
tom 20
|
nr 3
A number of chemicals have been shown to demonstrate neurotoxic effects either in human or laboratory animal studies. This article aims at evaluating the impact of exposure to several chemicals including: organophosphate, organochlorine pesticides, polychlorinated biphenyls (PCBs), mercury and lead on the neurodevelopment of children by reviewing the most recent published literature, and answer the question whether any progress has been made in the epidemiology of the neurodevelopment of children induced by exposure to those chemicals. The result of the presented studies show that exposure to the above-mentioned chemicals may impair the neurodevelopment of children. Neonates exposed to organophosphate pesticides demonstrated a higher proportion of abnormal reflexes, and young children had more attention problems. Exposure to organochlorine pesticides in children was associated with alertness, quality of alert responsiveness, cost of attention and other potential attention associated measures. The majority of studies indicate the negative impact of lead exposure at the level <10 μg/dl or even <5 μg/dl on the neurodevelopment of children. The results of studies on exposure to PCBs, mercury, and their effect on neurodevelopment are inconsistent. Some suggest that prenatal exposure to PCBs and mercury is related to performance impairments, attention and concentration problems, while other do not present any statistically significant association. The studies were mostly well designed, using prospective cohorts with the exposure assessment based on the biomarker of exposure. Concerning the covariates and confounders affecting the endpoints in most of the presented studies, confounders were included in data analysis. In order to recognize the early cognitive, motor and language outcomes of chemical exposures, well standardized tools were used for evaluating the neurodevelopmental effects and offer an early and fairly comprehensive measure of child development. Because the neurotoxicants may cross the placenta and the fetal brain, exposure consideration regarding the reduction of exposure to those chemicals should be implemented.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Exposure to phenoxyacetic acid herbicides and predictors of exposure among spouses of farmers

100%
Jurewicz J., Hanke W., Sobala W., Ligocka D.
Annals of Agricultural and Environmental Medicine
|
2012
|
tom 19
|
nr 1
The purpose of the study was to assess the environmental exposure to 2 commonly used pesticides: 2-methyl-4- chlorophenoxyacetic acid (MCPA) and 2,4-dichlorophenoxyacetic acid (2,4-D) among spouses of farmers, not directly involved in the process of spraying. Exposure to 63 sprayings 24 women in households from the rural area of the Łódż Voivodeship in Poland was assessed. The women were asked to collect 3 biological urine samples: in the morning before spraying (sample A), in the evening after spraying (sample B), and on the morning of the next day (sample C). The determination of pesticides in urine was performed by high performance liquid chromatography, coupled with tandem mass spectrometry and negative electrospray (LC-MS/MS-ESI-). In the case of both active ingredient, the number of urine samples with the level of pesticides above limit of detection (LOD) increased from 30% in samples A to 45% in samples B and C. The average levels of herbicides increased from sample A (2.8 ng/g creatinine) to sample B (6.0 ng/g creatinine). The mean value of the C sample was 4.0 ng/g creatinine. Similar results were obtained when the average was calculated for all measurements, including those below LOD. The outdoor activity of the women during spraying was statistically significant (p=0.023), a predictor of exposure in multivariate analyses. The presented study indicates that farmers’ spouses might be exposed to pesticides, even if they do not take part in the spraying.
3

Lifestyle factors and aperm aneuploidy

64%
Jurewicz J., Radwan M., Sobala W., Radwan P., Jakubowski L., Hawula W., Ulanska A., Hanke W.
Reproductive Biology
|
2014
|
tom 14
|
nr 3
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.