Objective To investigate the diagnostic value of fluorescent quantitative polymerase chain re-action ( FQ-PCR) technique in detecting the human cytomegalovirus infection and its impact on hepatic function through the detection of human cytomegalovirus (HCMV) DNA in urinary epithelial cell (EC), blood of breast-feeding infants and the milk of their mothers .Methods FQ-PCR was used to analyze the HCMV DNA in urinary EC, blood of 104 breast-fed suspected infants and breast milk of their mothers .The hepatic impairment was ana-lyzed through detecting aspartate aminotransferase ( AST ) , alanine aminotransferase ( ALT ) , gamma glutamyl transpeptidase ( GGT ) and total bilirubin .Results The positive rate of urinary EC and blood was 52.9%(55/104) and 24.0% (25/104) respectively.The positive rate of urinary EC was much higher than that of blood.The differences between these groups were statistically significant (P<0.01).The positive rate of breast milk was 81.7%(85/104), and the positive rate of the paired urinary EC and/or blood in positive breast milk test was 62.4%(53/85).The difference between the two groups was statistically significant (P<0.05).The possibility of hepatic impairment was much higher with the HCMV DNA copies in infants .Conclusions Detection of HCMV DNA load in urinary EC by FQ-PCR can predict HCMV active infection in infants and monitor the treat-ment of HCMV infection .The level of AST , ALT, GGT and total bilirubin can be used for evaluating hepatic im-pairment .%目的：应用实时荧光定量聚合酶链反应（ FQ-PCR）检测疑似人巨细胞病毒（ HCMV）感染的患儿尿液、血液及对应母亲乳汁中HCMV DNA含量，探讨其在HCMV感染诊断中的价值及对肝脏损伤情况。方法应用FQ-PCR方法检测104例疑似HCMV感染患儿新鲜尿液上皮细胞、血液及其对应的母亲乳汁中的HCMV DNA拷贝数，并同时检测患儿血液中天冬氨酸转氨酶（ AST）、丙氨酸转氨酶（ ALT）、谷氨酰转肽酶（GGT）、总胆红素水平。结果尿液、血液标本阳性检出率分别为52．9％（55/104），24．0％（25/104），尿液阳性率明显高于血液阳性率，二者差异有统计学意义（P＜0．01）。乳汁标本阳性检出率为81．7％（85/104），对应患儿血液和/或尿液阳性率为62．4％（53/85），二者差异有统计学意义（P＜0．05）。且患儿HCMV拷贝数越高，肝脏损伤的可能性越大。结论婴儿尿液中HCMV DNA检测率明显高于血液的检出率，且拷贝数越高，肝功能损伤的可能性就越大。尿液HCMV DNA检测对于诊断婴儿HCMV感染和治疗监测具有重要的价值。肝功能的检测对判断HCMV感染严重程度有一定的参考价值。
展开▼
