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  • Title: [Detection of Mycoplasma genitalium in throat by nested polymerase chain reaction and analysis of DNA sequencing in pediatric patients with acute upper respiratory tract infections].
    Author: Mi Z, Lu Y, Qin L.
    Journal: Zhonghua Jie He He Hu Xi Za Zhi; 2000 Nov; 23(11):676-8. PubMed ID: 11225033.
    Abstract:
    OBJECTIVE: To explore the relation between Mycoplasma genitalium (Mg) and acute upper respiratory tract infection in pediatric patients by using nested polymerase chain reaction(nPCR) and analysis of DNA sequencing techniques. METHODS: The specimens of throat swab were obtained in 62 acute upper respiratory tract infections children and 80 health children. The two kinds of Mg species-specific, in which the sequences of I-III and V-VII variable regions of Mg 16Sr RNA gene were detected by using nPCR technique. DNA sequences of positive product were detected and analysed. RESULTS: The Positive rate of health children is 5% (4/80), while the acute upper respiratory tract infection children is 21% (13/62). The difference is significant (P < 0.001). The DNA sequences of positive product shows that: there are two point mutation(T-->C) in the sequences of V-VII variable regions of throat swab of one pediatric patient, other sequences are same as those Mg type strain(G-37T). CONCLUSIONS: Acute upper respiratory tract infection of pediatric patients have relation with Mg. There are Mg mutant strain in China.
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