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Molecular hydrogen accelerates the reversal of acute obstructive cholangitis‑induced liver dysfunction by restoring gap and tight junctions.

分子状水素は胆管閉塞性胆管炎誘発性肝機能障害においてギャップ結合およびタイト結合を回復させることで肝機能の改善を促進する

animal study animal model positive

Abstract

Acute obstructive cholangitis (AOC) disrupts hepatocyte gap junctions (GJs) and tight junctions (TJs) through elevated biliary pressure and lipopolysaccharide (LPS) exposure, resulting in liver dysfunction. A rat AOC model was constructed by infusing LPS via a bile duct catheter with the distal duct occluded; biliary drainage was then established 12 hours later. Molecular hydrogen (H2) was administered following drainage. AOC caused marked disruption of both GJ and TJ proteins, whereas H2 administration reversed these junction abnormalities. The underlying mechanism appears to involve attenuation of inflammatory responses, reduction of oxidative damage, and decreased matrix metalloproteinase activity. These findings indicate that H2 can accelerate the restoration of liver function in AOC, with the effect dependent on the recovery of GJ and TJ integrity.

Mechanism

H2 attenuates inflammatory signaling and oxidative damage while suppressing matrix metalloproteinase activity, thereby preventing disruption of gap junction and tight junction proteins and facilitating restoration of hepatocyte function.

Bibliographic

Authors
Zhu Z, Yu J, Lin W, Tang H, Zhang W, Lu B
Journal
Mol Med Rep
Year
2019
PMID
31059036
DOI
10.3892/mmr.2019.10179

Tags

Disease:肝疾患 Mechanism:抗酸化酵素 ヒドロキシルラジカル消去 炎症抑制 脂質過酸化 酸化ストレス 活性酸素種

Delivery context

This study is at the animal-experiment stage. For human application, inhalation is the most promising delivery route, but inhalation carries explosion risk and concentration matters (empirical LFL of 10%; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended).

Safety notes

This study is at the animal-experiment stage. For human application, inhalation is the most promising delivery route, but inhalation carries explosion risk and concentration matters (empirical LFL of 10%; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended).

See also:

Other papers on the same disease / condition

Cite as: H2 Papers — PMID 31059036. https://h2-papers.org/en/papers/31059036
Source: PubMed PMID 31059036