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从消化系统疾病患者中分离出的菌株中EPIYA基序的测定。

Determination of EPIYA motif in strains isolated from patients with digestive disorder.

作者信息

Khaledi Mansoor, Bagheri Nader, Validi Majid, Zamanzad Behnam, Afkhami Hamed, Fathi Javad, Rahimian Ghorbanali, Gholipour Abolfazl

机构信息

Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.

Department of Medical Microbiology, Medicine Faculty, Shahed University, Tehran, Iran.

出版信息

Heliyon. 2020 Sep 23;6(9):e04971. doi: 10.1016/j.heliyon.2020.e04971. eCollection 2020 Sep.

Abstract

This study was conducted to identify patterns of EPIYA motifs in . strains isolated from patients with gastrointestinal diseases in Hospitals of Shahrekord, and investigate the association between these biomarkers and clinical outcomes of gastrointestinal diseases due to . . In this study, 253 patients with gastrointestinal diseases were studied within 1395-1396. Histopathological investigations and urease test showed that 207 isolates were . -positive. Then, screening using a molecular technique, PCR, confirmed that 159 isolates had cagA. Finally, the pattern and prevalence of the motifs were determined by PCR and identified a number of motifs were sequenced. Results of this study showed that the pattern of motifs was as follows: ABC (140 isolates) (93/7%), ABCC (6 isolates) (3/77%), ABCCC (4 isolates) (2/5%), AB (7 isolates) (4/4%), AC (1 isolate) (0/6%), and BC (1 isolate) (0/6%). Sequencing results showed the presence of changed EPIYA motif in some isolates. CM motif sequence was also seen in all isolates. In this study, no significant association was seen between the prevalence rate of different patterns and clinical symptoms ( = 0.71). There is a slight association between the presence of ABC motifs and the type of digestive disorder (p = 0.056). Results indicated that ABC was the most frequently seen pattern however, in such that positive cases of ABC motifs were more common in gastritis. All isolates had kinase phosphorylation region, and the observed pattern in this region was a generally western type (ABC).

摘要

本研究旨在确定从设拉子医院胃肠道疾病患者中分离出的幽门螺杆菌菌株中EPIYA基序的模式,并研究这些生物标志物与幽门螺杆菌引起的胃肠道疾病临床结果之间的关联。在本研究中,于2016 - 2017年对253例胃肠道疾病患者进行了研究。组织病理学检查和尿素酶试验表明,207株分离株为幽门螺杆菌阳性。然后,采用分子技术聚合酶链反应(PCR)进行筛查,证实159株分离株携带细胞毒素相关基因A(cagA)。最后,通过PCR确定基序的模式和流行率,并对一些确定的基序进行测序。本研究结果表明,基序模式如下:ABC(140株)(93.7%)、ABCC(6株)(3.77%)、ABCCC(4株)(2.5%)、AB(7株)(4.4%)、AC(1株)(0.6%)和BC(1株)(0.6%)。测序结果显示,一些分离株中存在改变的EPIYA基序。在所有分离株中也发现了CM基序序列。在本研究中,不同模式的流行率与临床症状之间未发现显著关联(P = 0.71)。ABC基序的存在与消化系统疾病类型之间存在轻微关联(P = 0.056)。结果表明,ABC是最常见的模式,然而,ABC基序阳性病例在胃炎中更为常见。所有分离株均有激酶磷酸化区域,该区域观察到的模式一般为西方类型(ABC)。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecae/7519360/34fbdd89f0a0/gr1.jpg

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