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Objective To investigate the allergic purpura ( HSP ) the risk of the CD14 gene sub - gene polymorphism . Subjects and methods . Of object 144 patients in our hospital from 2008 to 2009 children with HSP , are in line with Zhu Fu Tang Practical Pediatrics Section 7 edition of the diagnostic criteria . All patients were Han , aged 3 to 14 years , average ( 8.77 ± 2.81 ) years , including 77 males and 67 females . The control group of 180 cases from the same period in hospital examination Han Chinese healthy children , aged 1 to 14 years , an average of ( 7.81 ± 3.35 ) years , were male and 104 , female 76 cases . Between the two groups of age , gender, no statistical difference . Methods A case-control study , select 144 children with HSP ( case group) and 180 cases of healthy children ( control group ) , polymerase chain reaction- restriction fragment length polymorphism (polymerase chain reaction- restriction fragment length polymorphism, PCR-RFLP) CD14-159C / T and CD14-260C / T polymorphism of the sites , CD14 - 159C / T and CD14 - 260C / T bit point of different genotypes associated with allergic purpura risk relationship . Statistical analysis was performed using SPSS 13.0 software package . Results ( 1 ) HSP children in 144 cases of simple skin damage to the 25 cases, joint damage 60 cases , the gastrointestinal damage 74 cases , kidney damage 55 cases ; 24 cases of the isolated hematuria kidney damage , simple proteinuria , hematuria four cases with proteinuria , 30 cases of acute nephritic syndrome , nephrotic syndrome in 16 cases . 2 CD14 gene -159 genotype distribution in the group of HSP gastrointestinal , kidney damage and control groups there was a significant difference ( P lt ; 0.05 ) ; CD14 gene the -260 locus genotypes in skin lesions alone group , kidney distribution of the damage to the group and the control group there was a significant difference ( P lt ; 0.05 ) , allele C , T in the distribution of each group and the control group with a difference ( P lt ; 0.05 ) , and allele the frequency relative risk analysis found that the T allele carriers suffering from various types of HSP risk is higher than the C allele carriers . Conclusion CD14 gene promoter polymorphism and the HSP type has a certain contact point in the CD14 gene -260 T allele may be a genetic risk of the onset of HSP .
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