Investigation of Correlation between Gene Polymorphism of Apolipoprotein E and Mycoplasma Pneumoniae Infection in Children
10.3969/j.issn.1671-7414.2014.05.020
- VernacularTitle:载脂蛋白E基因多态性与小儿肺炎支原体感染的相关性探讨
- Author:
Wei KANG
;
Chao YANG
;
Zhuo LI
;
Mengying MA
- Publication Type:Journal Article
- Keywords:
mycoplasma pneumoniae infection in children;
apolipoprotein E;
gene polymorphism;
multiple allele-specific PCR
- From:
Journal of Modern Laboratory Medicine
2014;(5):83-84,88
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the relationship between gene polymorphism of apolipoprotein E (apolipoproteinE,ApoE)of peripheral blood and Mycoplasma pneumoniae infection in children.Methods Collected 236 cases serum of inpatient and outpatient screening in children with Mycoplasma pneumoniae infection and healthy children between March 2011 and March 2014 in the First Affiliated Hospital of Xi’an Medical University and Xi’an Children’s Hospital,at the age of 3~8 years old,divided into two groups:110 cases of control group and 126 cases of Mycoplasma pneumoniae infection in chil-dren.Used multiple allele-specific PCR (multi-AS PCR)to detect gene polymorphism of ApoE in each group.Results ApoE gene was polymorphic and 6 genotypes:3 homozygous (ε2/2,ε3/3,ε4/4)and 3 heterozygote (ε3/2,ε3/4,ε4/2).Theε3/2 had four bands,ε3/3,ε3/4 and 4/2 had three bands,ε2/2 andε4/4 had two bands.ε3/3 of ApoE genotype distribution in two groups was the most common,control group was 66.7%,infection group was 46.4%.Allele frequencies ofε3 and genotype frequencies ofε3/3 inMycoplasmapneumoniae infection of children were lower than those in control group (P<0.05).But allele frequencies ofε4 and genotype frequency ofε4/4 in Mycoplasma pneumoniae infection of children were increased, which were compared with those in control group (P<0.05).Conclusion There were an association between ApoE gene polymorphism and the incidence of Mycoplasma pneumoniae infection in children.Allelesε3 seems to be a protective factor and allelesε4 may contribute to the development of Mycoplasma pneumoniae infection of children.
