北京市顺义区87名健康人中产气荚膜梭菌携带特征研究
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(1.北京市顺义区旺泉社区卫生服务中心,北京 101300;2.吉林大学公共卫生学院, 吉林 长春 130021;3.北京市顺义区疾病预防控制中心,北京 101300)

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李红新 女 副主任医师 研究方向为临床医学 E-mail:war36@163.com通信作者:┣┣(中)通信作者┫┫李颖 男 主管检验师 研究方向为病原微生物 E-mail:liying19830805@126.com

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Characteristic of Clostridium perfringens isolated from 87 healthy people in Shunyi District, Beijing
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(1.Wangquan Community Health Service Center in Shunyi District,Beijing 101300,China;2.Public Health School of Jilin University,Jilin Changchun 130021,China;3.Beijing Shunyi District Center for Disease Control and Prevention,Beijing 101300,China)

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    摘要:

    目的 调查北京市顺义区健康人群携带产气荚膜梭菌(Clostridium perfringens, Cp)的生物特征,研究分离菌株携带产气荚膜梭菌肠毒素(Clostridium perfringens enterotoxin,Cpe)、β2毒力基因情况以及Cp在人群中的分布特征,为Cp导致食源性疾病的判定提供健康对照组数据。方法 对采集的87份健康体检者粪便开展Cp分离培养、平板计数和菌株cpe、β2毒力基因的聚合酶链式反应(PCR)检测,对检测结果进行统计分析。结果 87名健康人粪便中血平板分离培养后Cp检出率为64.37%(56/87);Cp的月份、性别、年龄分布差异无统计学意义(P>0.05)。共有57份粪便标本平板计数结果大于最低检出限(10 CFU/g),最高定量值为4.12×106 CFU/g,均值为1.70×105 CFU/g,中位数为5.30×103 CFU/g,95%分位数为7.00×105 CFU/g。分离的56株Cp中,cpe毒力基因检出率为0.00%(0/56),β2毒力基因检出率为73.21%(41/56)。结论 87名健康人粪便中Cp检出率较高,且β2毒力基因携带率较高,Cp引起食源性疾病的原因需要更深度生物标志识别或定量数据分析进行研究。

    Abstract:

    Objective To investigate the characteristics of Clostridium perfringens(Cp) from 87 healthy people in Shunyi District of Beijing. To study the prevalence of cpe and the β2 toxin gene in the bacterial strain and the distribution characteristics of Cp. It will provide a baseline for the determination of foodborne diseases caused by Cp. Methods The stool of 87 health people were collected for Cp isolation culture, plate count and cpe and β2 genes test. Statistical analysis was performed on the test result. Results The detection rate of Cp in 87 stool samples was 64.37% (56/87). The detection rate showed no significant difference among different sex, age and month(P>0.05). The result of 57 fecal specimens were above the detection limit(10 CFU/g), and the maximum quantitative value was 4.12×106 CFU/g. The mean value was 1.70×105 CFU/g, the median value was 5.30×103 CFU/g and the 95% percentile value was 7.00×105 CFU/g. The detection rate of cpe gene was 0.00%(0/56), and that of the β2 gene was 73.21% (41/56). Conclusion High Cp detection rate was found in 87 healthy people, the carrying rate of β2 gene was high. The foodborne diseases caused by Cp required more in-depth biological marker identification or quantitative analysis data to conduct research.

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李红新,卢迎瑞,张爽,蔡建国,马红梅,李印东,李颖.北京市顺义区87名健康人中产气荚膜梭菌携带特征研究[J].中国食品卫生杂志,2019,31(1):13-16.

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  • 收稿日期:2018-11-14
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  • 在线发布日期: 2019-03-22
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