PMID- 24610583 OWN - NLM STAT- MEDLINE DCOM- 20151019 LR - 20211021 IS - 0975-0711 (Electronic) IS - 0254-8860 (Linking) VI - 33 IP - 4 DP - 2014 Jul TI - Cure rate of Helicobacter pylori infection in Egyptian children related to CYP2C19 gene polymorphism. PG - 330-5 LID - 10.1007/s12664-014-0450-6 [doi] AB - OBJECTIVES: This study was done in order to investigate the effect of CYP2C19 genetic polymorphism on the cure rate of children who received proton pump inhibitors (PPI)-based triple therapy for treating Helicobacter pylori (H. pylori) infection. METHODS: Participants included 100 children with H. pylori-positive gastritis diagnosed by endoscopy and biopsy in addition to H. pylori stool antigen test. Cure rate was assessed after 1 month of completion of a triple treatment course for 14 days. CYP2C19 polymorphism was analyzed by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. RESULTS: Results showed that cases with a CYP2C19 genotypic status consistent with the heterozygote extensive metabolizers (HetEMs) had a higher cure rate of H. pylori when compared with the homozygote extensive metabolizers (HomEMs) although it was statistically nonsignificant (84.6 vs. 69.2). In addition, the poor metabolizers (PMs) had a higher cure rate compared with those of the HomEMs which was also statistically nonsignificant (77.8 vs. 69.2). The cure rate was also higher among both the groups of HetEMs and PMs combined together compared to the HomEMs (OR = 2.15, p > 0.05). Comparing cases regarding their age, gender, and severity of H. pylori gastritis revealed a better cure rate in the age group >10 years, in females and in mild and moderate cases than other cases although statistically nonsignificant. CONCLUSION: The higher cure rate of H. pylori infection using the triple therapy for 2 weeks among HetEMs and PMs cases compared to the HomEMs might warrant a need for a therapy augmentation or modification for the HomEMs. FAU - Settin, Ahmad AU - Settin A AD - Genetics Unit, Mansoura University, Mansoura, Egypt, settin60@gmail.com. FAU - Abdalla, Ahmad Fathy AU - Abdalla AF FAU - Al-Hussaini, Ayman S AU - Al-Hussaini AS FAU - El-Baz, Rizk AU - El-Baz R FAU - Galal, Amr AU - Galal A LA - eng PT - Journal Article DEP - 20140308 PL - India TA - Indian J Gastroenterol JT - Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology JID - 8409436 RN - 0 (Proton Pump Inhibitors) RN - 0K5C5T2QPG (Lansoprazole) RN - 804826J2HU (Amoxicillin) RN - EC 1.14.14.1 (Cytochrome P-450 CYP2C19) RN - H1250JIK0A (Clarithromycin) SB - IM MH - Amoxicillin/administration & dosage MH - Child MH - Clarithromycin/administration & dosage MH - Cytochrome P-450 CYP2C19/*genetics MH - Female MH - Gastritis/*drug therapy/enzymology/genetics/*microbiology MH - *Helicobacter Infections MH - *Helicobacter pylori MH - Humans MH - Lansoprazole/administration & dosage MH - Male MH - Polymerase Chain Reaction MH - *Polymorphism, Genetic MH - Polymorphism, Restriction Fragment Length MH - Proton Pump Inhibitors/administration & dosage MH - Severity of Illness Index MH - Treatment Outcome EDAT- 2014/03/13 06:00 MHDA- 2015/10/20 06:00 CRDT- 2014/03/11 06:00 PHST- 2013/09/13 00:00 [received] PHST- 2014/02/13 00:00 [accepted] PHST- 2014/03/11 06:00 [entrez] PHST- 2014/03/13 06:00 [pubmed] PHST- 2015/10/20 06:00 [medline] AID - 10.1007/s12664-014-0450-6 [doi] PST - ppublish SO - Indian J Gastroenterol. 2014 Jul;33(4):330-5. doi: 10.1007/s12664-014-0450-6. Epub 2014 Mar 8.