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TLR 9 (rs352140) Gene Polymorphism in Helicobacter Pylori Infection

NCT07289451 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2025-12-17

No results posted yet for this study

Summary

study aimed to identify the role of TLR9 (rs352140) gene in suppressing or promoting the inflammation related to H. pylori infection in children.This cross-sectional study was conducted on 50 children with positive H. pylori infection and 50 age and sex matched, negative H. pylori children, all children undertook full history, complete clinical investigation, laboratory testing, upper digestive endoscopies and genotyping of TLR9 (rs352140).

Conditions

  • H. Pylori Infection

Interventions

DIAGNOSTIC_TEST

TLR TLR 9 (rs352140) gene polymorphism

Genotyping of TLR9 (rs352140) was done using TaqMan mechanism on the Applied Biosystems™ 7500Fast Dx Real-Time PCR System (Applied Biosystems, Waltham, MA, United States) and a predesigned assay, namely C\_2301954\_20. A venous blood sample (2 mls) were withdrawn from each subject and were collected into sterile ethylene diaminetetra acetate "EDTA" (vacutainer) tube and were used for DNA extraction. DNA was extracted from fresh samples and stored at -20 °C till time of assay for determination of TLR9 (rs352140) polymorphism by using real time Polymerase chain reaction (rt PCR) technique. The blood samples were used for DNA extraction using the Gene JET Whole Blood Genomic DNA purification Mini Kit (Thermo Fisher Scientific, Germany) according to the manufacturer's protocol. Determination of DNA concentration was done using Nanodrop One spectrophotometer (thermoscientific, USA). A concentration of (1µg) from each sample was used for genotyping by rtPCR assay. Genotyping of TLR9 (rs352140)

Sponsors & Collaborators

  • Benha University

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
1 Year
Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-01-01
Primary Completion
2025-05-01
Completion
2025-09-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07289451 on ClinicalTrials.gov