机构:[1]Capital Med Univ, Beijing Childrens Hosp, Beijing 100045, Peoples R China;首都医科大学附属北京儿童医院[2]Shenzhen Childrens Hosp, Shenzhen, Peoples R China;[3]Jiangxi Childrens Hosp, Nanchang, Jiangxi, Peoples R China;[4]Guilin Med Coll, Affiliated Hosp, Guilin, Peoples R China;[5]Tsinghua Univ, Hosp 1, Hua Xin Hosp, Beijing 100084, Peoples R China;[6]Nanfang Hosp, Guangzhou, Guangdong, Peoples R China;[7]Capital Med Univ, Beijing Childrens Hosp, 56 Nan Li Shi Rd, Beijing 100045, Peoples R China首都医科大学附属北京儿童医院
This study aims to characterize the clinical features of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections in Chinese neonates, as well as the molecular characteristics and expression of key virulence genes of isolates. Clinical information and molecular characteristics of 130 cases were analyzed. Up to 83.8% patients were affected with late-onset infection. Cesarean delivery was the main delivery route, accounting for 74.6% of the total deliveries. Pneumonia (69, 53.1%) was the most common infection. A total of 38 patients (29.2%) suffered from complications. Moreover, 35 cases (26.9%) were invasive infections, among which 88.6% involved multiple organs and 45.7% suffered from complications. Cesarean section and premature birth were the risk factors for invasive CA-MRSA infection. ST59-MRSA-SCCmecIVa-t437 (54, 41.5%) was the most predominant CA-MRSA clone. The hla expression in the ST59 isolates was higher than that in ST910 (p=0.02) and the hla expression in ST59-SCCmecV-t437 was higher than that in ST59-SCCmecIVa-t437. Approximately, 46.4% (13/28) of the infections caused by ST59-SCCmecV were invasive. This value is higher than that of ST59-SCCmecVa caused infections (14/59, 23.7%) (p=0.03). This study showed that neonatal CA-MRSA infections in China readily become invasive, involve multiple organs, and are often accompanied by complications. The SCCmec V clone may be more pathogenic than the SCCmecVIa clone.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81171648]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China; Research Grants Council of Hong KongHong Kong Research Grants Council [81061160509]
第一作者机构:[1]Capital Med Univ, Beijing Childrens Hosp, Beijing 100045, Peoples R China;
通讯作者:
通讯机构:[1]Capital Med Univ, Beijing Childrens Hosp, Beijing 100045, Peoples R China;[7]Capital Med Univ, Beijing Childrens Hosp, 56 Nan Li Shi Rd, Beijing 100045, Peoples R China
推荐引用方式(GB/T 7714):
Li Shipeng,Ning Xue,Song Wenqi,et al.Clinical and molecular characteristics of community-acquired methicillin-resistant Staphylococcus aureus infections in Chinese neonates[J].APMIS.2015,123(1):28-36.doi:10.1111/apm.12304.
APA:
Li, Shipeng,Ning, Xue,Song, Wenqi,Dong, Fang,Zheng, Yaojie...&Shen, Xuzhuang.(2015).Clinical and molecular characteristics of community-acquired methicillin-resistant Staphylococcus aureus infections in Chinese neonates.APMIS,123,(1)
MLA:
Li, Shipeng,et al."Clinical and molecular characteristics of community-acquired methicillin-resistant Staphylococcus aureus infections in Chinese neonates".APMIS 123..1(2015):28-36