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Tissue distribution of 35S-labelled perfluorobutane sulfonic acid in adult mice following dietary exposure for 1-5 days
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för biokemi och biofysik.
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Institutionen för miljötoxikologi, Uppsala universitet.
Institutet för miljömedicin, Karolinska institutet.
Vise andre og tillknytning
(engelsk)Manuskript (preprint) (Annet vitenskapelig)
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-81056OAI: oai:DiVA.org:su-81056DiVA, id: diva2:559248
Tilgjengelig fra: 2012-10-08 Laget: 2012-10-08 Sist oppdatert: 2022-02-28bibliografisk kontrollert
Inngår i avhandling
1. Radiosynthesis of Perfluoroalkyl Substances: Chemical analysis, uptake, distribution, and partitioning studies
Åpne denne publikasjonen i ny fane eller vindu >>Radiosynthesis of Perfluoroalkyl Substances: Chemical analysis, uptake, distribution, and partitioning studies
2012 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Perfluoroalkyl substances (PFASs) are widely utilized manmade chemicals. Their properties have made them highly appreciated in a variety of industrial and consumer product applications, including fire-fighting foams, hydraulic fluids, as well as in cookware and food contact papers.

However, some of the PFASs are highly persistent in the environment and their toxicological profiles are of concern. Voluntary and regulatory efforts have been taken to reduce the environmental levels of PFASs. These actions have resulted in a reduction of PFASs in human milk from Stockholm as presented in this thesis.

The radiosyntheses of 35S-PFOS, 35S-PFBS, and 14C-PFOA presented herein were applied for distribution studies in mice but also for solubility and adhesion experiments of common laboratory solvents and buffers. The radiosynthesis employed reactive Grignard reagents, perfluoroalkyliodides, and 35S-sulfur dioxide or 14C-carbon dioxide. The distribution studies were performed with 35S-PFOS on both pregnant mice and their offspring as well as on male mice. The mice were subjected to whole-body autoradiography and the tissues were analyzed by liquid scintillation counting. Liver and lungs were the target organs for 35S-PFOS in the dams. The fetuses and pups had remarkable high levels of 35S-PFOS in their lungs as well as in the brain. The male mice were given a high dose and a more environmental relevant dose of 35S-PFOS. PFOS was transferred from the blood to the tissues as the dose increased.

In another study the distribution pattern of the shorter homologue PFBS was compared to PFOS. 35S-PFBS was utilized and demonstrated a 5-40 fold lower tissue levels in comparison to PFOS.

The pharmacokinetic parameters determined for PFHxS in mice, rats, and monkeys will provide valuable insight in establishing a proper risk assessment for this compound. The study confirms the common species differences in serum elimination half-life that are associated with PFASs.

sted, utgiver, år, opplag, sider
Stockholm: Department of Materials and Environmental Chemistry (MMK), Stockholm University, 2012. s. 65
Emneord
PFOS, PFOA, PFBS
HSV kategori
Forskningsprogram
miljökemi
Identifikatorer
urn:nbn:se:su:diva-81061 (URN)978-91-7447-579-1 (ISBN)
Disputas
2012-11-16, Magnélisalen, Kemiska övningslaboratoriet, Svante Arrhenius väg 16 B, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Merknad

At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 6: Manuscript.

Tilgjengelig fra: 2012-10-25 Laget: 2012-10-08 Sist oppdatert: 2022-02-24bibliografisk kontrollert

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