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Identification of functional tumor necrosis factor-alpha promoter variants associated with Helicobacter pylori infection in the Sudanese population: Computational approach

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World Journal of Gastroenterology 2022年第2期28卷 242-262页

作者： Abeer Babiker Idris Alaa B Idris manal a gumaa Mohammed Babiker Idris Amanda Elgoraish Mohamed Mansour Dalia Allam Bashir MO Arbab Nazar Beirag El-Amin M Ibrahim Mohamed A Hassan Department of Agricultural Science and Technology Institute of Natural and Applied SciencesErciyes UniversityKayseri 38039Turkey Department of Medical Microbiology Faculty of Medical Laboratory SciencesUniversity of KhartoumKhartoum 11111Sudan Department of Neurosurgery Ribat University HospitalKhartoum 11111Sudan BioMérieux Clinical and Application Advisor Al-Jeel Medical Co.Riyadh 11422Saudi Arabia Department of Epidemiology Tropical Medicine Research InstituteKhartoum 11111Sudan Department of Gastroenterology Ibn Sina Specialized HospitalKhartoum 11111Sudan Department of Gastroenterology Modern Medical CentreKhartoum 11111Sudan Biosciences College of HealthMedicine and Life SciencesBrunel UniversityLondon UB83PHUxbridgeUnited Kingdom Department of Translation Bioinformatics Detavax BiotechKayseri 38350Turkey

BACKGROUND Helicobacter pylori(***)is a ubiquitous bacterium that affects nearly half of the world’s population with a high morbidity and mortality *** within the tumor necrosis factor-alpha(TNF-A)promoter region are considered a possible genetic basis for this *** To functionally characterize the genetic variations in the TNF-A 5’-region(-584 to+107)of Sudanese patients infected with *** using in silico *** An observational study was carried out in major public and private hospitals in Khartoum state.A total of 122 gastric biopsies were taken from patients who had been referred for *** DNA was *** of the TNF-A-1030 polymorphism was performed using PCR with confronting two-pair primer to investigate its association with the susceptibility to *** infection in the Sudanese ***,Sanger sequencing was applied to detect single nucleotide polymorphisms in the 5’-region(-584 to+107)of TNF-A in ***-infected *** analyses were used to predict whether these mutations would alter transcription factor binding sites or composite regulatory elements in this region.A comparative profiling analysis was conducted in 11 species using the ECR browser and multiple-sequence local alignment and visualization search engine to investigate the possible ***,a multivariate logistic regression model was constructed to estimate odds ratios and their 95%confidence intervals for the association between TNF-A-1030,sociodemographic characteristics and *** *** were statistically significant if PA,-76)was located at the in silico-predicted promoter region(-146 to+10),and it was predicted to alter transcription factor b

关键词： 5’-region Promoter TNF-A Helicobacter pylori In silico analysis Sudan

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