The sub-chronic toxicity in rats of isoparaffinic solvents

Carrillo, JC; Adenuga, MD; Mckee, RH; Roth, RN; Steup, D; Simpson, BJ

HERO ID

2900210

Reference Type

Journal Article

Year

2013

Language

English

PMID

24044944

HERO ID 2900210
In Press No
Year 2013
Title The sub-chronic toxicity in rats of isoparaffinic solvents
Authors Carrillo, JC; Adenuga, MD; Mckee, RH; Roth, RN; Steup, D; Simpson, BJ
Journal Regulatory Toxicology and Pharmacology
Volume 67
Issue 3
Page Numbers 446-455
Abstract Results from a 13-week inhalation study in rats on a C10-C12 isoparaffinic solvent are compared to the results of repeated inhalation and oral toxicity studies of four other isoparaffinic hydrocarbon solvents. Statistically significant findings which were consistent across all studies included: nephropathy and small but significant changes in hematological parameters in male rats and liver enlargement in both male and female rats. The male rat kidney changes were due to an alpha 2u globulin process and not relevant for human health or risk assessment. The liver enlargement without pathologic changes or elevations in liver enzyme markers was considered to be an adaptive response. The reason for the reductions in hematological parameters that were observed in males only is not clear, but it is suggested that these were either due to normal variation or a secondary consequence of the nephropathy. The overall No Observed Adverse Effect Concentration (NOAEC) was the highest concentration tested in the study, >10,000 mg/m(3). Because of the overall pattern of response, this solvent is considered to be representative of low aromatic C9-C14 aliphatic solvents in general. The data are useful for risk assessment and other purposes including the development of occupational exposure recommendations.
Doi 10.1016/j.yrtph.2013.09.004
Pmid 24044944
Wosid WOS:000327415300015
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English