RGD Reference Report - Association of MIF promoter polymorphisms with childhood asthma in a northeastern Chinese population. - Rat Genome Database

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Association of MIF promoter polymorphisms with childhood asthma in a northeastern Chinese population.

Authors: Wu, J  Fu, S  Ren, X  Jin, Y  Huang, X  Zhang, X  Bai, J 
Citation: Wu J, etal., Tissue Antigens. 2009 Apr;73(4):302-6.
RGD ID: 4891059
Pubmed: PMID:19317738   (View Abstract at PubMed)

Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine that plays an important role in pathogenesis of asthma. A high level of MIF has been detected in bronchoalveolar lavage fluid, serum and sputum in asthma. Polymorphisms associated with inflammatory diseases exist in the promoter region of MIF, which alter its expression. The aim of this study was to evaluate the potential relationship between functional polymorphisms of MIF and childhood asthma in a northeastern Chinese population. The study consisted of a set of 41 trios and an independent sample set of 189 childhood asthma patients and 261 healthy controls. We genotyped MIF-173G/C using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Additionally, MIF-794CATT(5-8) microsatellite polymorphism was genotyped by polyacrylamide gel electrophoresis (PAGE). A statistically significant difference in the distribution of the MIF-173C allele between patients and controls [P = 0.01, odds ratio (OR) = 1.55, 95% confidence interval (CI) = 1.13-2.18] was observed. In addition, the frequency of the MIF-173CC genotype was higher in asthmatic children (P < 0.01, OR = 3.37, 95% CI = 1.27-8.93). No difference in the distribution of CATT(5-8) was found between patients and healthy controls. Haplotype analysis showed that only the MIFCATT(7)-173C haplotype was associated with greater susceptibility to childhood asthma (P = 0.03, OR = 1.54, 95% CI 1.03-2.28). However, the transmission disequilibrium test confirmed a positive association between MIF-173G/C and childhood asthma (P = 0.005), and the absence of an association between the MIF-794CATT(5-8) and the disease. These preliminary results suggest an association between the MIF-173C allele and childhood asthma.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
asthma  IAGP 4891059DNA:SNP:promoter:rs755622(human)RGD 
asthma  ISOMIF (Homo sapiens)4891059; 4891059DNA:SNP:promoter:rs755622(human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Mif  (macrophage migration inhibitory factor)

Genes (Mus musculus)
Mif  (macrophage migration inhibitory factor (glycosylation-inhibiting factor))

Genes (Homo sapiens)
MIF  (macrophage migration inhibitory factor)


Additional Information