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HERO ID
1015662
Reference Type
Journal Article
Title
Genotoxic potential of arsenic at its reference dose
Author(s)
Kesari, VP; Kumar, A; Khan, PK
Year
2012
Is Peer Reviewed?
Yes
Journal
Ecotoxicology and Environmental Safety
ISSN:
0147-6513
EISSN:
1090-2414
Volume
80
Page Numbers
126–131
Language
English
PMID
22421451
DOI
10.1016/j.ecoenv.2012.02.018
Web of Science Id
WOS:000304337300018
Abstract
Arsenic, a highly hazardous contaminant in our drinking water, accounts for various toxic effects (including cancer) in human. However, intake of arsenic @0.3μgkg(-1)day(-1) through drinking water, containing arsenic at its guideline value or maximum contaminant limit (10μgL(-1)), has been estimated to pose very little or no measurable risk to cancer in humans. The value also appears to be equal to the human reference dose (or index dose) of arsenic based on human skin toxicity data. The present work was a quantitative assessment of the genotoxic potential of arsenic in mice at doses equivalent to its human reference dose as well as its multiples. Significant increases in the frequencies of chromosome abnormalities in the bone marrow cells were registered over the control level upon exposure to all the doses of arsenic including its reference dose (or index dose). The assessment of arsenic genotoxicity in humans at low doses will therefore be highly instrumental in establishing a permissible limit of arsenic in drinking water.
Keywords
Arsenic genotoxicity; Chromosome abnormality; Guideline value; Index dose; Maximum contaminant limit; Reference dose
Tags
•
Arsenic Hazard ID
1. Initial Lit Search
PubMed
WOS
ToxNet
WOS
Considered New
2. Lit Search Updates through Oct 2015
WOS
Considered
4. Considered through Oct 2015
5. Additions through Oct 2015
6. Cluster Filter through Oct 2015
7. Other Studies through Oct 2015
MOA
•
Arsenic (Inorganic)
1. Literature
PubMed
Toxline, TSCATS, & DART
Web of Science
Lit search updates through Oct 2015
3. Hazard ID Screening
Other potentially supporting studies
4. Adverse Outcome Pathways/Networks Screening
Relevant
•
Arsenic MOA
4. Adverse Outcome Pathways
Non-oxidative DNA/ chromosomal damage
1. MOA Literature Screening
Health Effect Screening
•
Arsenic Susceptibility
Life Stages Citation Mapping
20%-25%
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