Distribution and excretion of 2,4,5,2',5',-pentachlorobiphenyl in rat

Matthews, HB; Anderson, MW

HERO ID

2175708

Reference Type

Journal Article

Year

1975

Language

English

PMID

238820

HERO ID 2175708
In Press No
Year 1975
Title Distribution and excretion of 2,4,5,2',5',-pentachlorobiphenyl in rat
Authors Matthews, HB; Anderson, MW
Journal Drug Metabolism and Disposition
Volume 3
Issue 3
Page Numbers 211-219
Abstract Rats received single intravenous doses (0.6 or 6.0 mg/kg) of 2,4,5,2',5'-pentachlorobiphenyl-14C (5-CB). The distribution and ecretion of 5-CB-derived material were investigated at periods ranging from 10 min to 42 days after administration and found to be first-order rate processes in the dose range studied. Blood, liver, muscle, skin, and adipose tissues were found to be the most important tissues to the distribution of this compound. More than 90% of the total dose was removed from the blood within 10 min after administration. Most of the radioactivity was initially deposited in the liver and muscle, and then translocated to the skin and adipose tissue. The decay rate of radioactivity from each of the tissues could be described by the sum of two or more exponentials. Metabolism to more polar compounds appears to be a prerequisite to excretion, and most of the radioactivity was excreted in the bile and ultimately in the feces. Excretion in the urine accounted for less than 7% of the total dose and ceased at approximately 8 or 9 days after 5-CB-administration. Studies of the distribution and excretion of 5-CB-derived material over extended periods of time, 1-42 days, demonstrated the importance of the adipose tissue and skin as long-term storage sites, and demonstrated that the decay rate of 5-CB from the tissues paralleled the decreasing rate of excretion in the feces.
Pmid 238820
Wosid WOS:A1975AE06000009
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
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  • Has other version or edition: 2175713