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Scand J Gastroenterol. 2015 Jun;50(6):657-67. doi: 10.3109/00365521.2015.1019918. Epub 2015 Apr 22.

Chronic gastritis.

Author information

1
Patolab Oy, Espoo, Finland and Tartu State University , Tartu , Estonia.

Abstract

Prevalence of chronic gastritis has markedly declined in developed populations during the past decades. However, chronic gastritis is still one of the most common serious pandemic infections with such severe killing sequelae as peptic ulcer or gastric cancer. Globally, on average, even more than half of people may have a chronic gastritis at present. Helicobacter pylori infection in childhood is the main cause of chronic gastritis, which microbial origin is the key for the understanding of the bizarre epidemiology and course of the disease. A life-long and aggressive inflammation in gastritis results in destruction (atrophic gastritis) of stomach mucosa with time (years and decades). The progressive worsening of atrophic gastritis results subsequently in dysfunctions of stomach mucosa. Atrophic gastritis will finally end up in a permanently acid-free stomach in the most extreme cases. Severe atrophic gastritis and acid-free stomach are the highest independent risk conditions for gastric cancer known so far. In addition to the risks of malignancy and peptic ulcer, acid-free stomach and severe forms of atrophic gastritis may associate with failures in absorption of essential vitamins, like vitamin B12, micronutrients (like iron, calcium, magnesium and zinc), diet and medicines.

KEYWORDS:

Helicobacter pylori; gastric cancer; gastritis; peptic ulcer

PMID:
25901896
PMCID:
PMC4673514
DOI:
10.3109/00365521.2015.1019918
[Indexed for MEDLINE]
Free PMC Article

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