Breathing Hydrogen Gas Shrinks Lung Nodules and Reduces Inflammation

TL;DR

Hydrogen-oxygen inhalation was associated with smaller pulmonary nodules and lower IL-6 and neutrophil levels, but the small, short-term study requires confirmation.

Key Finding

Patients who inhaled hydrogen-oxygen gas for 14 days showed a 0.64 mm reduction in lung nodule diameter and decreased inflammatory markers (IL-6 and neutrophil count) compared to controls at 3-month follow-up.

Summary

Researchers tested whether breathing a mixture of hydrogen and oxygen gas could help patients with small lung nodules (spots found on CT scans). Fifty-nine patients either breathed hydrogen-oxygen gas or regular air for 14 days. After 3 months, the hydrogen-oxygen group showed slightly smaller nodule size and lower levels of inflammatory markers (IL-6 and neutrophils, which are immune cells that increase with inflammation) compared to the control group. The effect was stronger in patients who smoked.

Practical Takeaway

This small, single-center study suggests hydrogen-oxygen inhalation may have anti-inflammatory effects and could potentially help slow lung nodule growth, particularly in smokers. However, the study involved only 59 patients over 3 months, so these early findings need confirmation in larger, multicenter trials before any clinical recommendations can be made. The clinical significance of a 0.64 mm reduction in nodule size remains unclear.

Abstract (excerpt)

Objective: To evaluate the effects of hydrogen-oxygen inhalation on nodule diameter and peripheral blood inflammatory factors in patients with small pulmonary nodules (SPNs), and to further analyze its efficacy in the smoking subgroup. The primary endpoint was the change in pulmonary nodule…

Read the full abstract via DOI