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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-10-1
pubmed:abstractText
DNA damage induced by Mercuric chloride (HgCl2) in leucocytes of Wistar albino male rats has been studied in vivo. The comet assay or the alkaline single cell gel electrophoresis (SCGE) assay was used to measure the DNA damage. The rats were administered orally with doses ranging from 0.0054, 0.0108, 0.0216, 0.0432 to 0.0864 mg/kg body weight (b.wt.) of HgCl2. The assay was performed on whole blood at 24, 48, 72 h, 1st and 2nd week. The reason leucocytes were used was to reflect biomarker studies in humans. A significant increase in mean comet tail length indicating DNA damage was observed at all time intervals with HgCl2 except in 2nd week post treatment when compared to controls. The mean comet tail length revealed a clear dose dependent increase from 0.0054 to 0.0432 mg/kg b.wt. A maximum increase in mean comet tail length was observed at 0.0432 mg/kg b.wt. 24 h after treatment. From 48 h post treatment, the mean comet tail lengths of all the doses gradually decreased and by week 2 of post treatment, they had approached control levels, pointing to repair of the damaged DNA. These findings suggest that the comet assay is a highly sensitive technique to study DNA damage caused by metals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0300-483X
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
191-7
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
In vivo genotoxic effects of mercuric chloride in rat peripheral blood leucocytes using comet assay.
pubmed:affiliation
Toxicology Unit, Biology Division, Indian Institute of Chemical Technology, 500007, Andhra Pradesh, Hyderabad, India. grover@iict.ap.nic.in
pubmed:publicationType
Journal Article