巨细胞病毒感染对婴幼儿体质量影响及与病毒拷贝数相关性分析

目的 探讨人巨细胞病毒（HCMV）感染对婴幼儿体质量增长的影响,并分析患儿各年龄段体质量增长率与病毒拷贝数的相关性.方法 采用荧光定量聚合链反应（FQ-PCR）方法检测2012年10月至2013年10月收治的168例HCMV感染儿童尿液中HCMV-DNA载量,并采取回顾性调查研究的流行病学方法比较HCMV感染患儿的年龄别体质量与同年龄正常儿童的体质量,并对HCMV感染患儿体质量增长率与病毒拷贝数进行相关性分析.结果 168例患儿尿液标本HCMV-DNA均为阳性,年龄分布为1个月～3岁.3～6个月病毒感染患儿体质量增长率与病毒拷贝数呈负相关（r=-0.774,P＜0.01）.结论 巨细胞病毒感染患儿6个月前生长发育较同龄儿缓慢,6个月后逐渐加快至2岁与同龄儿基本接近;1岁前患儿体质量增长率较正常儿童有所下降;患儿体质量增长率与巨细胞病毒拷贝数呈负相关,3～6个月患儿负相关性尤为明显.

Effect of cytomegalovirus infection on infant weight growth and correlation between the weight growth and copies number of the virus

Objective To investigate the effect of cytomegalovirus（HCMV） infection on infant bodyquality growth,and analysis of the correlation between children of all ages body-quality growth rate and copy number of the virus.Methods One hundred and sixty-eight children with HCMV infection were enrolled in the current study who were hospitalized from Oct.2012 to Oct 2013 in the Affiliated Hospital of Xuzhou Medical College.Children＇s urine HCMV-DNA copy number was measured by TaqMan probe fluorescence quantitative PCR.The retrospective study was conducted to compare the HCMV infection in children with weight-for-age and normal children.The correlation between children with body-quality growth rate and copy number of the virus was analyzed.Results All 168 urine specimens were positive regarding HCMV-DNA.The age of all distribution was from 1 month to 3 years.There was a negative correlation between the increase body weigh and the copies of virus of children with 3-6 months （r =-0.774,P 〈 0.01）.Conclusion The growth and development of children with HCMV at age before 6 months were slower than Children with the same age.The growth of cytomegalovirus infection increase gradually speeding when they were over 6 months and it was approaching to that same age when they are 2 years old.The growth rate is lower than that of normal children when HCMV children were before 1 years old.The correlation of body-quality growth rate and the number of copies of the virus was negative,especially from 3 months to 6 months.