Schweizer Studie untersucht Hormonaktivität von BPA, BPS, BPF, Pergafast und D-8 in Thermopapieren

Daniela M. Goldinger, Anne-Laure Demierre, Otmar Zoller, Heinz Rupp, Hans Reinhard, Roxane Magnin, Thomas W. Becker und Martine Bourqui-Pittet sind das Team hinter der vor wenigen Tagen publizierten Studie:

Endocrine activity of alternatives to BPA found in thermal paper in Switzerland

Bemerkenswert daran ist, ausser dem Inhalt, dass 3 AutorInnen aus dem Bundesamt für Gesundheit (BAG), Abteilung Chemikalien und 3 aus dem Bundesamt für Lebensmittelsicherheit und Veterninärwesen (BLV) stammen.

Der Abstract lautet:

Alternatives to bisphenol A (BPA) are more and more used in thermal paper receipts. To get an overview of the situation in Switzerland, 124 thermal paper receipts were collected and analyzed. Whereas BPA was detected in most samples (n = 100), some alternatives, namely bisphenol S (BPS), Pergafast® 201 and D-8 have been found in respectively 4, 11 and 9 samples. As no or few data on their endocrine activity are available, these chemicals and bisphenol F (BPF) were tested in vitro using the H295R steroidogenesis assay. 17β-Estradiol production was induced by BPA and BPF, whereas free testosterone production was inhibited by BPA and BPS. Both non-bisphenol substances did not show significant effects. The binding affinity to 16 proteins and the toxicological potential (TP) were further calculated in silico using VirtualToxLab™. TP values lay between 0.269 and 0.476 and the main target was the estrogen receptor β (84.4 nM to 1.33 μM). A substitution of BPA by BPF and BPS should be thus considered with caution, since they exhibit almost a similar endocrine activity as BPA. D-8 and Pergafast® 201 could be alternatives to replace BPA, however further analyses are needed to better characterize their effects on the hormonal system.

Der hervorgehobene Satz ist insofern durchaus bemerkenswert, als er festhält, dass BPA, BPS und BPF, laut den Messungen von BAG und BLV, alle drei eine ähnlich starke Hormonaktivität zeigen. Das ist nicht das erste Mal, dass sich das BAG mit BPA beschäftigt. 2012 publizierte dasselbe Team aus der Abteilung Chemikalien eine Studie zur Hautgängigkeit von BPA.

Ein backup des Artikels: gibt’s hier.