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Sci Rep:女性中由大肠杆菌引起的泌尿系感染研究

2020-06-30 AlexYang MedSci原创

许多女性含有泌尿系感染(UTIs)。除了疼痛和尿急之外,恶臭也是这些患者的显著特征。引起上述特征的特定因子仍旧不清楚。目前为止,也没有有效靶向治疗。

许多女性含有泌尿系感染(UTIs)。除了疼痛和尿急之外,恶臭也是这些患者的显著特征。引起上述特征的特定因子仍旧不清楚。目前为止,也没有有效靶向治疗。

最近,有研究人员使用了一个代谢组学的方法比较了大肠杆菌感染女性患者(n=15)尿液和健康女性患者(n=10)尿液的代谢物组成情况。研究发现,生物胺、三甲胺和腐胺是引起泌尿生殖恶臭的原因,在UTI患者中这三种化学物质显著增加。相反地,三甲胺,三甲胺N-氧化物前体含量较低。为了进一步的确认恶臭化合物的来源,研究人员在健康女性无菌尿液中培养了泌尿系致病大肠杆菌。研究发现,所有测试的菌株均积累了三甲胺和腐胺。明显的是,尸胺在体外试验中也能够由大肠杆菌株系产生;然而,在两组之间没有显著的差异。

最后,研究人员指出,恶臭胺TMA和腐胺在大肠杆菌引起的UTI女性患者尿液中浓度比健康女性的更高。

原始出处:

Scarlett Puebla-Barragan, Justin Renaud, Mark Sumarah et al. Malodorous biogenic amines in Escherichia coli-caused urinary tract infections in women-a metabolomics approach. Sci Rep. 16 June 2020

 

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    2020-08-09 ms2000000577074311

    最后的结果看起来意义很小

    0

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    2020-07-30 47885453

    基础研究是国人的短板。

    0

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