Asian Pacific journal of cancer prevention : APJCP · 2016
TLR1 Polymorphism Associations with Gastric Mucosa Morphologic Patterns on Magnifying NBI Endoscopy: a Prospective CrossSectional Study.
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Tongtawee Taweesak, Bartpho Theeraya, Kaewpitoon Soraya, Kaewpitoon Natthawut, Dechsukhum Chavaboon, Leeanansaksiri Wilairat, Loyd Ryan A, Matrakool Likit, Panpimanmas Sukij
Аннотация
BACKGROUND: Helicobacter pylori is now recognized as a causative factor of chronic gastritis, gastroduodenal ulcers, gastric cancer and mucosaassociated lymphatic tissue lymphoma. Tolllike receptors are important bacterial receptors in gastric epithelial cell signaling transduction and play critical roles in gastric carcinogenesis.
MATERIALS AND METHODS: A total of 400 patients undergoing esophagogastroduodenoscopy for investigation of chronic abdominal pain were genotyped for singlenucleotide polymorphisms (SNPs) in TLR1 (rs4833095) using TagMan SNPs genotyping assay by realtime PCR hybridization. Relationships with susceptibility to H. pylori infection and premalignant gastric mucosa morphological patterns, classified by magnifying NBI endoscopy, were investigated.
RESULTS: The percentages of TLR1 rs4833095, CC homozygous, CT heterozygous and TT homozygous cases were 34, 46.5 and 19%, respectively. CC showed statistical differences between H. pylori positive and negative cases (P<0.001). CT and TT correlated with type 1 and type 2 gastric mucosal morphological patterns (P<0.01) whereas CC correlated with types 3 and 4 (P<0.01).
CONCLUSIONS: This study demonstrated good correlation of TLR1 rs4833095 genotype with severity of inflammation in H. pylori infected gastric mucosa according to gastric mucosal morphologic patterns with magnifying NBI endoscopy.
MATERIALS AND METHODS: A total of 400 patients undergoing esophagogastroduodenoscopy for investigation of chronic abdominal pain were genotyped for singlenucleotide polymorphisms (SNPs) in TLR1 (rs4833095) using TagMan SNPs genotyping assay by realtime PCR hybridization. Relationships with susceptibility to H. pylori infection and premalignant gastric mucosa morphological patterns, classified by magnifying NBI endoscopy, were investigated.
RESULTS: The percentages of TLR1 rs4833095, CC homozygous, CT heterozygous and TT homozygous cases were 34, 46.5 and 19%, respectively. CC showed statistical differences between H. pylori positive and negative cases (P<0.001). CT and TT correlated with type 1 and type 2 gastric mucosal morphological patterns (P<0.01) whereas CC correlated with types 3 and 4 (P<0.01).
CONCLUSIONS: This study demonstrated good correlation of TLR1 rs4833095 genotype with severity of inflammation in H. pylori infected gastric mucosa according to gastric mucosal morphologic patterns with magnifying NBI endoscopy.