Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl with liver microsomes of phenobarbital-treated dog; the possible formation of PCB 2,3-arene oxide intermediate

N. Ariyoshi; N. Koga; K. Oguri; H. Yoshimura

doi:10.3109/00498259209053156

Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl with liver microsomes of phenobarbital-treated dog; the possible formation of PCB 2,3-arene oxide intermediate

N. Ariyoshi, N. Koga, K. Oguri, H. Yoshimura

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

1. Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl (HCB) was investigated in vitro using liver microsomes of one male beagle dog after phenobarbital treatment. 2. Three major metabolites were isolated and identified as 3-hydroxy-2,4,5,2',4',5'-HCB, 2-hydroxy-4,5,2',4',5'-pentachlorobiphenyl (PenCB), and 2-hydroxy-3,4,5,2',4',5'-HCB, by comparison of g.l.c.-mass spectrometry and ¹H-n.m.r. data with those of authentic samples. 3. 2-Hydroxy-3,4,5,2',4',5'-HCB was found as a metabolite of 2,4,5,2',4',5'-HCB for the first time using dog liver microsomes. Present results indicate that this metabolite and the dechlorinated PenCB are derived from a metabolic intermediate, namely, 2,3-epoxy-2,4,5,2',4',5'-HCB. 2,3-Epoxide formation is a new metabolic pathway of PCB.

Original language	English
Pages (from-to)	1275-1290
Number of pages	16
Journal	Xenobiotica
Volume	22
Issue number	11
DOIs	https://doi.org/10.3109/00498259209053156
Publication status	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

Biochemistry
Toxicology
Pharmacology
Health, Toxicology and Mutagenesis

Access to Document

10.3109/00498259209053156

Cite this

@article{e26b9a5ad8b0436c969fb5f2a40c28bb,

title = "Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl with liver microsomes of phenobarbital-treated dog; the possible formation of PCB 2,3-arene oxide intermediate",

abstract = "1. Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl (HCB) was investigated in vitro using liver microsomes of one male beagle dog after phenobarbital treatment. 2. Three major metabolites were isolated and identified as 3-hydroxy-2,4,5,2',4',5'-HCB, 2-hydroxy-4,5,2',4',5'-pentachlorobiphenyl (PenCB), and 2-hydroxy-3,4,5,2',4',5'-HCB, by comparison of g.l.c.-mass spectrometry and 1H-n.m.r. data with those of authentic samples. 3. 2-Hydroxy-3,4,5,2',4',5'-HCB was found as a metabolite of 2,4,5,2',4',5'-HCB for the first time using dog liver microsomes. Present results indicate that this metabolite and the dechlorinated PenCB are derived from a metabolic intermediate, namely, 2,3-epoxy-2,4,5,2',4',5'-HCB. 2,3-Epoxide formation is a new metabolic pathway of PCB.",

author = "N. Ariyoshi and N. Koga and K. Oguri and H. Yoshimura",

note = "Funding Information: This work was supported in part by a grant from the Ministry of Health and Welfare, Japan. We thank Panapharm Laboratories Co., Uto Kumamoto, Japan, for their veterinary and surgical assistance, and also Miss M. Takechi for her excellent technical assistance.",

year = "1992",

doi = "10.3109/00498259209053156",

language = "English",

volume = "22",

pages = "1275--1290",

journal = "Xenobiotica",

issn = "0049-8254",

publisher = "Informa Healthcare",

number = "11",

}

TY - JOUR

T1 - Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl with liver microsomes of phenobarbital-treated dog; the possible formation of PCB 2,3-arene oxide intermediate

AU - Ariyoshi, N.

AU - Koga, N.

AU - Oguri, K.

AU - Yoshimura, H.

N1 - Funding Information: This work was supported in part by a grant from the Ministry of Health and Welfare, Japan. We thank Panapharm Laboratories Co., Uto Kumamoto, Japan, for their veterinary and surgical assistance, and also Miss M. Takechi for her excellent technical assistance.

PY - 1992

Y1 - 1992

N2 - 1. Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl (HCB) was investigated in vitro using liver microsomes of one male beagle dog after phenobarbital treatment. 2. Three major metabolites were isolated and identified as 3-hydroxy-2,4,5,2',4',5'-HCB, 2-hydroxy-4,5,2',4',5'-pentachlorobiphenyl (PenCB), and 2-hydroxy-3,4,5,2',4',5'-HCB, by comparison of g.l.c.-mass spectrometry and 1H-n.m.r. data with those of authentic samples. 3. 2-Hydroxy-3,4,5,2',4',5'-HCB was found as a metabolite of 2,4,5,2',4',5'-HCB for the first time using dog liver microsomes. Present results indicate that this metabolite and the dechlorinated PenCB are derived from a metabolic intermediate, namely, 2,3-epoxy-2,4,5,2',4',5'-HCB. 2,3-Epoxide formation is a new metabolic pathway of PCB.

AB - 1. Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl (HCB) was investigated in vitro using liver microsomes of one male beagle dog after phenobarbital treatment. 2. Three major metabolites were isolated and identified as 3-hydroxy-2,4,5,2',4',5'-HCB, 2-hydroxy-4,5,2',4',5'-pentachlorobiphenyl (PenCB), and 2-hydroxy-3,4,5,2',4',5'-HCB, by comparison of g.l.c.-mass spectrometry and 1H-n.m.r. data with those of authentic samples. 3. 2-Hydroxy-3,4,5,2',4',5'-HCB was found as a metabolite of 2,4,5,2',4',5'-HCB for the first time using dog liver microsomes. Present results indicate that this metabolite and the dechlorinated PenCB are derived from a metabolic intermediate, namely, 2,3-epoxy-2,4,5,2',4',5'-HCB. 2,3-Epoxide formation is a new metabolic pathway of PCB.

UR - http://www.scopus.com/inward/record.url?scp=0026526432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026526432&partnerID=8YFLogxK

U2 - 10.3109/00498259209053156

DO - 10.3109/00498259209053156

M3 - Article

C2 - 1492420

AN - SCOPUS:0026526432

VL - 22

SP - 1275

EP - 1290

JO - Xenobiotica

JF - Xenobiotica

SN - 0049-8254

IS - 11

ER -

Metabolism of 2,4,5,2',4',5'-hexachlorobiphenyl with liver microsomes of phenobarbital-treated dog; the possible formation of PCB 2,3-arene oxide intermediate

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this