Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1994-12-20
pubmed:abstractText
Clofazimine (CLF), an antileprosy drug, has earlier been proved to be clastogenic in mice in vivo. It is an important constituent of the triple-drug regimen recommended by WHO for the treatment of leprosy. In this study the protective role of vitamins A and C (vit A and vit C) against the clastogenic effect of CLF in mouse bone marrow cells has been evaluated. Two doses (20 and 40 mg/kg) of vit C and two doses (2500 and 5000 IU/kg) of vit A were tested against a dose of 40 mg CLF/kg. The drug alone induced chromosomal aberrations of about 8 times the control value. Neither of the doses of vit C exhibited any clastogenic effect and, when administered simultaneously with CLF, both reduced the effect of CLF very significantly, the higher dose reducing chromosomal aberrations almost to the control value. Conversely, both doses of vit A, when administered alone, brought about significant increases in chromosome aberrations over the control value; the higher, but not the lower dose, given simultaneously with CLF, minimized the effect of CLF significantly but not as greatly as vit C. A scavenging effect of the vitamins, removing free radicals produced by CLF, is assumed to be responsible for modulation of the clastogenic effect of CLF.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0278-6915
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
911-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Reduction of clastogenic effect of clofazimine, an antileprosy drug, by vitamin A and vitamin C in bone marrow cells of mice.
pubmed:affiliation
Environmental Mutagenesis Unit, School of Life Sciences, Sambalpur University, Jyotivihar, Orissa, India.
pubmed:publicationType
Journal Article, Comparative Study