國家衛生研究院 NHRI:Item 3990099045/12439
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/12439


    Title: Multiple-locus variable-number tandem-repeat analysis (MLVA) of macrolide-susceptible and -resistant Mycoplasma pneumoniae in children in Taiwan
    Authors: Lu, CY;Yen, TY;Chang, LY;Liau, YJ;Liu, HH;Huang, LM
    Contributors: Institute of Molecular and Genomic Medicine
    Abstract: BACKGROUND/PURPOSE: To date, molecular typing studies on Mycoplasma pneumoniae are limited. We evaluated the molecular types of Mycoplasma pneumoniae in pediatric patients in Taiwan in 2016. METHODS: We used real-time quantitative PCR on respiratory specimens to identify M. pneumoniae in children with community-acquired pneumonia. The domain V of their 23S rRNA were sequenced for detection of macrolide-resistant point mutations. Molecular typing with multiple locus variable-number tandem repeat analysis (MLVA) was done for both macrolide-susceptible and -resistance M. pneumoniae samples. RESULTS: M. pneumoniae was detected in 22% (180/826) respiratory samples during the study period. Among all M. pneumoniae-positive samples, 24% (43/180) had harbored macrolide-resistant genotypes, and 86% (37/43) of them were A2063G mutation. Forty-two macrolide-resistant strains and 20 randomly selected macrolide-susceptible strains underwent MLVA profiling. MLVA 4-5-7-2 was the most frequent type (32/62, 52%), followed by 4-5-7-3 (17/62, 27%) and 1-5-6-2 (9/62, 15%). There was a strong association between MLVA 4-5-7-2 and macrolide resistance (p < 0.001). In contrast, M 4-5-7-3 and 1-5-6-2 were related to macrolide susceptibility (p < 0.001, and p = 0.025, respectively). CONCLUSION: Macrolide resistance was relatively low (24%) in this age group in 2016 in Taiwan, and A2063G was the dominant point mutation. MLVA 4-5-7-2 was associated with macrolide resistance.
    Date: 2020-10
    Relation: Journal of the Formosan Medical Association. 2020 Oct;119(10):1539-1545.
    Link to: http://dx.doi.org/10.1016/j.jfma.2019.12.008
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0929-6646&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000574758100011
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85077654427
    Appears in Collections:[Hong-Hsing Liu] Periodical Articles

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