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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-6-1
pubmed:abstractText
Interferon gamma (IFN-gamma) and interleukin 10 (IL-10) are believed to play opposing roles in host immunity against mycobacterial infection. IFN-gamma activates macrophages, while IL-10 downregulates the expression of T helper type 1 cytokines, MHC class II antigens and costimulatory molecules on macrophages. Associations of IFN-gamma -179 (G/T), +874 (A/T), +875 miscrosatellite CA repeats and +4766 (C/T), and IL-10 -1082 (A/G), -819 (C/T) and -592 (C/A) with tuberculosis (TB) were investigated in 385 HIV-negative patients and 451 controls in a Hong Kong Chinese population. The frequency of a low IFN-gamma-producing +874 A/A genotype was significantly over-represented in the patient group (P<0.001, OR=3.79, 95% CI=1.93-7.45). We identified 10 alleles in the IFN-gamma CA repeats and observed a significant difference in allele frequency distribution between patients and controls (P<0.001). By grouping alleles into 12 and non-12 CA repeats, the non-12/non-12 genotype yielded a similar significant result (P<0.001, OR=4.56, 95% CI=2.21-9.43) as observed in +874 A/A genotype. Weak associations of the IL-10 GCC/- genotype (P=0.04) and the low IFN-gamma-producing A/A genotype (P=0.06) with TB relapse/extrapulmonary cases were found. This study suggests the possible role of interferon gamma in TB susceptibility.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1466-4879
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
358-63
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Association of interferon gamma and interleukin 10 genes with tuberculosis in Hong Kong Chinese.
pubmed:affiliation
Department of Paediatrics and Adolescent Medicine, Jockey Club Clinical Research Centre, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't