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LGG significantly reduces the frequency and severity of abdominal pain in children with IBS; this effect is sustained and may be secondary to improvement of the gut barrier.

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Background: Several studies report an inhibitory effect of probiotics on Helicobacter pylori . Aim: To test whether Lactobacillus reuteri ATCC 55730 reduces H. pylori intragastric load in vivo, decreases dyspeptic symptoms, and affects eradication rates after conventional treatment. Materials and Methods: In a double-blind placebo-controlled study, 40 H. pylori -positive subjects were given L. reuteri once a day for 4 weeks or placebo. All underwent upper endoscopy,