Endothelial dysfunction is reversible in Helicobacter pylori-positive subjects

Area of Science:

• Cardiovascular Science
• Infectious Diseases
• Gastroenterology

Background:

• Epidemiological studies suggest a link between Helicobacter pylori (HP) infection and atherosclerosis, but this association remains controversial.
• The potential for HP eradication to reverse endothelial damage and prevent cardiovascular events is not well-established.

Purpose of the Study:

• To investigate the effect of HP eradication on endothelial dysfunction in dyspeptic subjects.
• To assess changes in vascular function and interleukin-6 levels following triple therapy for HP infection.

Main Methods:

• A study involving 31 HP-positive and 11 HP-negative dyspeptic subjects.
• Vascular measurements (ankle brachial index, flow-mediated diameter) and interleukin-6 levels were assessed at baseline and 3 months.
• HP-positive subjects received triple therapy for eradication.

Main Results:

• HP-positive subjects exhibited significant improvement in endothelial dysfunction after HP eradication (from -1.26 ± 8.4% to 8.4 ± 9.0%, P=.001).
• No significant improvement in endothelial function was observed in the HP-negative control group (from 1.9 ± 9.7% to 5.6 ± 8.3%, P=.41).
• Serum interleukin-6 levels did not differ significantly before or after HP eradication in HP-positive subjects.

Conclusions:

• HP eradication can lead to significant improvements in endothelial dysfunction.
• These findings suggest a potential therapeutic role for HP eradication in managing vascular health.