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Saturated hydrogen saline attenuates endotoxin-induced lung dysfunction.

Yan Zhang¹, Yiming Liu¹, Jin Zhang¹

¹Department of Anesthesiology, Shengjing Affiliated Hospital, China Medical University, Shenyang City, Liaoning Province, PR China.

The Journal of Surgical Research

|May 26, 2015

Summary

Saturated hydrogen saline treatment reduced acute lung injury in rats by decreasing inflammation, autophagy, and apoptosis. This intervention shows promise for managing lipopolysaccharide-induced lung dysfunction.

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Area of Science:

Pulmonary Medicine
Cell Biology
Molecular Biology

Background:

Acute lung injury (ALI) involves pulmonary inflammation and vascular permeability, often exacerbated by lipopolysaccharides (LPS).
p38 mitogen-activated protein kinase (MAPK) activation drives inflammation, while cytokines and oxidative stress induce excessive autophagy, leading to cell death.
Autophagy, a cellular degradation process, can be detrimental when uncontrolled in ALI.

Purpose of the Study:

To investigate the protective effects of saturated hydrogen saline against LPS-induced acute lung dysfunction in rats.
To elucidate the molecular mechanisms underlying the therapeutic potential of saturated hydrogen saline in ALI.

Main Methods:

Sixty-four male Sprague-Dawley rats were divided into control, LPS-induced ALI, and LPS + saturated hydrogen saline groups.

Keywords:

Acute lung injury Apoptosis Autophagy Lipopolysaccharide Saturated hydrogen saline p38MAPK

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Rats were pretreated with saturated hydrogen saline to assess its impact on LPS-induced lung injury.

Molecular markers of inflammation, autophagy, apoptosis, and p38 MAPK signaling were analyzed.

Main Results:

Saturated hydrogen saline significantly improved survival rates and reduced lung dysfunction in LPS-treated rats.
Treatment decreased serum levels of tumor necrosis factor-α, interleukin-6, myeloperoxidase, and malondialdehyde.
Saturated hydrogen saline attenuated LPS-induced increases in autophagosomes, LC3I/II expression, apoptosis, and p38 expression.

Conclusions:

Saturated hydrogen saline effectively mitigates LPS-induced acute lung dysfunction in rats.
The protective mechanism involves the downregulation of inflammation, autophagy, and apoptosis.
Saturated hydrogen saline's beneficial effects are linked to the modulation of the p38 MAPK signaling pathway.