Cytogenetic effects of inhaled benzene in murine bone marrow: induction of sister chromatid exchanges, chromosomal aberrations, and cellular proliferation inhibition in DBA/2 mice

Journal Article · Tue Apr 01 00:00:00 EST 1980 · Proc. Natl. Acad. Sci. U.S.A.; (United States)

DOI:https://doi.org/10.1073/pnas.77.4.2148· OSTI ID:5060478

Tice, R R; Costa, D L; Drew, R T

Exposure of adult male and female DBA/2 mice to 3100 ppM benzene for 4 hr significantly increased the frequency of sister chromatid exchanges in bone marrow cells of both sexes, inhibited marrow cellular proliferation (but only in male mice), and did not significantly increase the frequency of chromosomal aberrations in either sex. Phenobarbital pretreatment synergistically interacted with benzene exposure to further increase sister chromatid exchanges in female mice, induce greater inhibition of cellular proliferation in male mice, and induce a significant level of chromatid-type chromosomal aberrations in both sexes. During the second day after exposure to benzene there was increased inhibition of cellular proliferation in male mice and both new DNA damage and persistence of old DNA damage in female mice. The differences in both the type and magnitude of the response of bone marrow cellular populations, as determined by different cytogenetic end points in male and female DBA/2 mice exposed to benzene or to phenobarbital and benzene, suggest not only that a metabolite of benzene is responsible for the observed effects, but that different metabolites may be involved in different end points.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5060478
• Journal Information: Proc. Natl. Acad. Sci. U.S.A.; (United States), Vol. 77:4
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
59 BASIC BIOLOGICAL SCIENCES
BENZENE
TOXICITY
BONE MARROW CELLS
SENSITIVITY
CHROMOSOMES
DNA
CELL PROLIFERATION
CHROMOSOMAL ABERRATIONS
INHALATION
INHIBITION
METABOLITES
MICE
SEX DEPENDENCE
SISTER CHROMATID EXCHANGES
ANIMAL CELLS
ANIMALS
AROMATICS
CONNECTIVE TISSUE CELLS
HYDROCARBONS
INTAKE
MAMMALS
MUTATIONS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
RODENTS
SOMATIC CELLS
VERTEBRATES
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)
550200 - Biochemistry
550300 - Cytology