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Comparison of 2,2',4,4',5,5'-hexachloro(/sup 14/C)biphenyl levels in different adipose tissues of dogs and monkeys

Journal Article · · Fundam. Appl. Toxicol.; (United States)
The polychlorinated biphenyl isomer, 2,2',4,4',5,5'-hexachloro(/sup 14/C)biphenyl (2,4,5-HCB) was administered as a single iv dose at 0.6 mg/kg to dogs and monkeys. Adipose tissue, which included omentum, pericardial, perirenal, peritesticular, and subcutaneous fat, and blood were collected at various termination times and analyzed for total /sup 14/C and the parent hexachlorobiphenyl (HCB). Significant differences (p less than 0.0005) in the total hexachlorobiphenyl concentration as measured by total radioactivity (/sup 14/C equivalents) were noted in the various adipose tissues and in the same adipose tissues with time. Peritesticular fat was consistently lower in the concentration of /sup 14/C equivalents than the other adipose tissues, which were nearly equal. The concentrations in subcutaneous fat samples were inconsistent. Total /sup 14/C equivalent concentrations in the adipose tissues either peaked or reached a maximum at Day 1 and Day 4 for dog and monkey, respectively. However, parent HCB fat/blood ratios continually increased over the time course of the experiment, because concentrations in blood decreased more rapidly than those in adipose tissue.
Research Organization:
Univ. of Arizona, Tucson
OSTI ID:
6498176
Journal Information:
Fundam. Appl. Toxicol.; (United States), Journal Name: Fundam. Appl. Toxicol.; (United States) Vol. 4:1; ISSN FAATD
Country of Publication:
United States
Language:
English