Comparative toxicokinetics of bisphenol S and bisphenol AF in male rats and mice following repeated exposure via feed.
Xenobiotica
; 51(2): 210-221, 2021 Feb.
Article
in En
| MEDLINE
| ID: mdl-32985913
ABSTRACT
We investigated the plasma toxicokinetic behavior of free (parent) and total (parent and conjugated forms) of bisphenol S (BPS) and bisphenol AF (BPAF) in plasma of adult male rats and mice following exposure via feed for 7 days to BPS (338, 1125, and 3375 ppm) or BPAF (338, 1125, and 3750 ppm). In rats, the exposure concentration-normalized maximum concentration [Cmax/D (ng/mL)/(ppm)] and area under the concentration time curve [AUC/D (h × ng/mL)/(ppm)] for free was higher for BPS (Cmax/D 0.476-1.02; AUC/D 3.58-8.26) than for BPAF (Cmax/D 0.017-0.037; AUC/D0.196-0.436). In mice, the difference in systemic exposure parameters between free BPS (Cmax/D 0.376-0.459; AUC/D 1.52-2.54) and free BPAF (Cmax/D 0.111-0.165; AUC/D0.846-1.09) was marginal. Elimination half-lives for free analytes (4.41-10.4 h) were comparable between species and analogues. When systemic exposure to free analyte was compared between species, in rats, BPS exposure was slightly higher but BPAF exposure was much lower than in mice. BPS and BPAF were highly conjugated; total BPS AUC values (rats ≥18-fold, mice ≥17-fold) and BPAF (rats ≥127-fold, mice ≥16-fold) were higher than corresponding free values. Data demonstrated that there are analogue and species differences in the kinetics of BPS and BPAF.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phenols
/
Sulfones
/
Benzhydryl Compounds
/
Hazardous Substances
Limits:
Animals
Language:
En
Journal:
Xenobiotica
Year:
2021
Document type:
Article
Affiliation country:
Estados Unidos
Publication country:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM