Person: Schwedler, Gerda
Lade...
E-Mail-Adresse
Geburtsdatum
Forschungsvorhaben
Organisationseinheiten
Berufsbeschreibung
Nachname
Schwedler
Vorname
Gerda
Name
2 Ergebnisse
Suchergebnisse
Gerade angezeigt 1 - 2 von 2
Veröffentlichung Mothers and children are related, even in exposure to chemicals present in common consumer products(2019) Koppen, Gudrun; Govarts, Eva; Kolossa-Gehring, Marike; Vanermen, Guido; Schwedler, GerdaBackground Phthalates, bisphenol A (BPA) and triclosan (TCS) are detectable in the vast majority of people. Most humans are continuously exposed to these chemicals due to their presence in food or in everyday consumer products. The measurement of these compounds in family members may help to explore the impact of major lifestyle factors on exposure. Mothers and (young) children are especially interesting to study, as they mostly share considerable parts of daily life together. Materials and methods Phthalate metabolites, bisphenol A (BPA) and triclosan (TCS) were measured in first morning void urine, collected in mother-child pairs (n=129) on the same day. The mothers (27-45y) and their children (6-11y) were recruited in the Brussels agglomeration and rural areas of Belgium in the context of the European COPHES-DEMOCOPHES human biomonitoring project. Face-to-face questionnaires gathered information on major exposure sources and lifestyle factors. Exposure determinants were assessed by multiple linear regression analysis. Results The investigated compounds were detectable in nearly all mothers (92.8-100%) and all children (95.2-100%). The range (P90 vs. P10) of differences in urinary concentrations within each age group was for most compounds around 10-20 fold, and was very high for TCS up to 35 and 350-fold in children and mothers respectively. Some participants exceeded the tolerable daily intake guidelines as far as they were available from the European Food Safety Authority (EFSA). Overall, for BPA, the urinary concentrations were similar among both age groups. Most urinary phthalate metabolites were higher in children compared to the mothers, except for monoethyl phthalate (MEP). TCS levels were generally higher in the mothers. Despite the difference in mothers' and children's urinary concentrations, the creatinine-corrected levels were correlated for all biomarkers (Spearman rank r=0.32 to 0.66, p<0.001). Furthermore, for phthalates, similar home and lifestyle factors were associated with the urinary concentrations in both age groups: home renovation during last two years or redecoration during the last year for di-ethyl phthalate (DEP); PVC in home for di-n-butyl phthalate (DnBP), di-iso-butyl phthalate (DiBP) and butyl benzyl phthalate (BBzP), and personal care products use for DiBP and DnBP. Based on questionnaire information on general food type consumption patterns, the exposure variability could not be explained. However, comparing the phthalate intake from the current study with earlier assessed Belgian food intake calculations for both ages, food in general was estimated to be the major intake source for di-ethyl hexyl phthalate (DEHP), with diminishing importance for BBzP, DiBP and DnBP. Conclusion Our results confirm, that children and their mothers, sharing diets and home environments, also share exposure in common consumer products related chemicals. By collecting morning urine levels on the same day, and using basic questionnaires, suspected exposure routes could be unraveled.Veröffentlichung Interpreting biomarker data from the COPHES-DEMOCOPHES twin projects: Using lifestyle and environmental data to understand biomarker differences among countries(2013) Den Hond, Elly; Govarts, Eva; Koppen, Gudrun; Willems, Hanny; Joas, Reinhard; Casteleyn, Ludwine; Joas, Anke; Biot, Pierre; Aerts, Dominique; Angerer, Jürgen; Berglund, Marika; Bloemen, Louis; Castaño, Argelia; Fiddicke, Ulrike; Crettaz, Pierre; Esteban, Marta; Exley, Karen; Fabianova, Eleonora; Fischer, Marc; Gutleb, Arno Christian; Hadjipanayis, Adamos; Halzlova, Katarina; Horvat, Milena; Jakubowski, Marek; Katsonouri, Andromachi; Kolossa-Gehring, Marike; Koch, Holger; Krskova, Andrea; Lehmann, Andreas; Ligocka, Danuta; Lupsa, Ioana-Rodica; Mazej, Darja; Mulcahy, Maurice; Namorado, Sónia; Nielsen, Jeanette; Schwedler, GerdaIn 2011 and 2012, the COPHES/DEMOCOPHES twin projects performed a first ever harmonized human biomonitoring survey in 17 European countries. In more than 1800 mother-child pairs, cadmium, cotinine and certain phthalate metabolites were measured in urine, and total mercury in hair samples. The presentation provides an overview of the analyses that studied whether it was feasible to interpret the observed differences in biomarker values among different countries, using external databases on environmental quality and lifestyle.
Despite the fact that harmonised biomonitoring data was available from 17 different European countries, the assessment was hampered by a lack of consistent data on lifestyle and environmental quality. This implied that most analyses could only be performed for about half to two thirds of the participating countries. Nonetheless, it was feasible to relate aggregated fish consumption data to mercury in hair, to relate the strength of anti-smoking legislation to urinary cotinine levels, and to find a borderline significant relationship between cadmium levels in air or food and urinary cadmium levels across DEMOCOPHES countries. However, the challenge to integrate environmental exposure and lifestyle data with biomarker data is to have data available on a similar geographical resolution and therefore remains a pitfall for human biomonitoring to achieve its true potential for evidence-based policy making.
With many thanks to the COPHES consortium funded by DG RTD under FP7 and DEMOCOPHES co-funded under Life+, as well as the Ministries of the DEMOCOPHES countries, for the support. www.eu-hbm.infoRoel Smolders, et al.: Interpreting biomarker data from the COPHES-DEMOCOPHES twin projects: Using lifestyle and environmental data to understand biomarker differences among countries. In: Abstracts / The 9thInternational Symposium on Biological Monitoring in Occupational and Environmental Health. 2013, Manchester, S. 33