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헬리코박터 파이로리 배양에서 CO₂ 농도 차이에 따른 단백체 조성 비교
이승규(Seung-Gyu Lee),김경미(Kyung-Mi Kim),박정원(Jeong-Won Park),권영철(Young-Chul Kwon),송재영(Jae-Young Song),배동원(Dong-Won Bae),윤희상(Hee-Shang Youn),서지현(Ji-Hyun Seo),백승철(Seung-Chul Baik),이우곤(Woo-Kon Lee),조명제(Myung 대한미생물학회 2007 Journal of Bacteriology and Virology Vol.37 No.4
박철종,백승철,장미숙,이종육,오영진,조백기,조준행,Park Chul-Jong,Baek Seung-Chul,Chang Mi-Sook,Yi Jong-Yuk,Oh Young-Jin,Cho Baik-Kee,Cho Joon-Heang 대한수의사회 1990 대한수의사회지 Vol.26 No.7
This study was performed in order to investigate the incidence of the canine dermatoses caused by mites and the relativity of the causative mites of canine dermatoses to the pruritic dermatoses of the families posessing the pet dogs. Samples were collecte
Association between Gastric pH and Helicobacter pylori Infection in Children
서지현,박형근,박지숙,염정숙,임재영,박찬후,우향옥,윤희상,전진수,고경혁,Seung Chul Baik,이우곤,조명제,이광호,백승철 대한소아소화기영양학회 2015 Pediatric gastroenterology, hepatology & nutrition Vol.18 No.4
Purpose: To assess gastric pH and its relationship with urease-test positivity and histological findings in children with Helicobacter pylori infection.Methods: Fasting gastric juices and endoscopic antral biopsy specimens were collected from 562 children and sub-jected to the urease test and histopathological examination. The subjects were divided into 3 age groups: 0-4, 5-9, and 10-15 years. The histopathological grade was assessed using the Updated Sydney System, while the gastric juice pH was determined using a pH meter.Results: The median gastric juice pH did not differ significantly among the age groups (p=0.655). The proportion of individuals with gastric pH >4.0 was 1.3% in the 0-4 years group, 6.1% in the 5-9 years group, and 8.2% in 10-15 years (p=0.101). The proportions of moderate and severe chronic gastritis, active gastritis, and H. pylori infiltration increased with age (p<0.005). Urease-test positivity was higher in children with hypochlorhydria (77.8%) than in those with normal gastric pH (31.7%) (p<0.001). Chronic and active gastritis were more severe in the former than the latter (p<0.001), but the degree of H. pylori infiltration did not differ (20.9% vs. 38.9%; p=0.186). Conclusion: Gastric pH while fasting is normal in most children regardless of age. Urease-test positivity may be related to hypochlorhydria in children, and hypochlorhydria is in turn related to H. pylori infection.