Time Trends in <i>Helicobacter pylori</i> Infection and Atrophic Gastritis Over 40 Years in Japan

Kamada, Takenobu; Haruma, Ken; Ito, Masanori; Inoue, Kentaro; Manabe, Noriaki; Matsumoto, Hiroshi; Kusunoki, Hiroaki; Hata, Jiro; Yoshihara, Masaharu; Sumii, Koji; Akiyoshi, Takashi; Tanaka, Shinji; Shiotani, Akiko; Graham, David Y.

doi:10.1111/hel.12193

Cited by 104 publications

(118 citation statements)

References 38 publications

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“…Note there was a percentage increase of global incidence of gastritis and duodenitis (18.3%) and peptic ulcer diseases (4.8%) between 2005 and 2015 [1]. Although the prevalence of atrophy in the stomach and the incidence of peptic ulcer disease decrease in some countries [2,3], we observe reports that the prevalence of atrophic corpus gastritis and duodenitis is still high. It is about from 5 to 12% for distinct countries and age groups [4][5][6].…”

Section: Introductionmentioning

confidence: 89%

A multiphase flow in the antroduodenum: some results of the mathematical modelling and computational simulation

2018

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Abstract. This work is devoted to a problem of creation of a multiphase flow model in an antroduodenum that includes the lower part of the stomach and the upper part of the small intestine (duodenum). The mathematical model is developed for the next purposes: description of the process of digestion in normal physiological state and with functional disorders, prediction of the flow characteristics in distinct conditions. The antroduodenum is considered as a complex form canal with moving boundaries. The mathematical statement of the problem includes mass and momentum conservation equations for phases and components as well as initial and boundary conditions with peristaltic movement. To describe secretion and absorption processes we use mass sources/sinks in a layer adjacent to the tract wall. Using computational simulation we got the digestion processes characteristics in dynamic: pH of the medium, components and phases velocities and fractions. In some scenarios with secretory and motor disorders we identified zones of abnormal acidity. The results of the simulation showed that motor functionality of the antrum and pyloric sphincter affect the stomach evacuation. Additionally, the chemical absorption rate is analyzed in scenarios with distinct food parameters (size, viscosity, density).

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Section: Introductionmentioning

confidence: 89%

A multiphase flow in the antroduodenum: some results of the mathematical modelling and computational simulation

2018

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“…On the other hand, Kamada et al [5] showed a progressive and rapid decline in the prevalence of H. pylori infection. The overall prevalence of H. pylori infection decreased significantly from 74.7% (1970s) to 53% (1990s) and 35.1% (2010s) [5] .…”

Section: The Geographic Significance Of H Pylori Infection Chronic mentioning

confidence: 98%

Different Pathophysiology of Gastritis between East and West? An Asian Perspective

Suzuki¹,

Mori²

2016

Inflamm Intest Dis

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among all prospected risk factors for the incidence of gastric cancer and the rate of development of gastritis. While eating habits, such as salty foods, vegetables and fruits, might influence the progression of gastritis, such factors might be responsible for the geographic heterogeneity of gastritis. Key Message: East Asian CagA-positive H. pylori is the strongest risk factor for gastric carcinogenesis and the development of gastritis.

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“…While the prevalence of Helicobacter pylori (H. pylori) has been decreasing [1,2], it remains a critical public health issue. Recently, increasing prevalence of CAM-resistant H. pylori is an emerging problem of public health all over the world as CAM is included in most first-line empiric H. pylori eradication regimens [3,4].…”

Section: Introductionmentioning

confidence: 99%

Cost-Effectiveness Analysis of Helicobacter Pylori Diagnostic Methods in the Patients with Atrophic Gastritis

Shimbo¹,

Ohde²,

Deshpande³

2017

Gastroenterology

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Time Trends in Helicobacter pylori Infection and Atrophic Gastritis Over 40 Years in Japan

Cited by 104 publications

References 38 publications

A multiphase flow in the antroduodenum: some results of the mathematical modelling and computational simulation

A multiphase flow in the antroduodenum: some results of the mathematical modelling and computational simulation

Different Pathophysiology of Gastritis between East and West? An Asian Perspective

Cost-Effectiveness Analysis of Helicobacter Pylori Diagnostic Methods in the Patients with Atrophic Gastritis

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