Hydrogen-generating Si-based agent protects against skin flap ischemia-reperfusion injury in rats

Hikaru Kobayashi, Kazuya Kuroda, Koichi Tomita, Naoya Otani, Tateki Kubo, Yoshihisa Koyama, Yuki Kobayashi

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DOI: 10.1038/s41598-022-10228-6 DOI is the universal ID for this study.

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Hydrogen is effective against ischemia-reperfusion (I/R) injury in skin flaps. However, the difficulty of continuously administering a sufficient amount of hydrogen using conventional methods has been an issue in the clinical application of hydrogen-based therapy. An Si-based agent administered orally was previously shown to continuously generate a large amount of hydrogen in the intestinal environment. In this study, we assessed the effect of the Si-based agent on the inhibition of I/R injury in skin flaps using a rat model. In the I/R groups, the vascular pedicle of the abdominal skin flap was occluded for three hours followed by reperfusion. In the I/R + Si group, the Si-based agent was administered perioperatively. After reperfusion, flap survival rate, blood flow, oxidative stress markers, inflammatory markers/findings, and degree of apoptosis were evaluated. Flap survival rate was significantly higher, and histological inflammation, apoptotic cells, oxidative stress markers, and levels of inflammatory cytokine mRNA and protein expression were significantly lower, in the I/R + Si group compared to the I/R group. The Si-based agent suppressed oxidative stress, apoptosis, and inflammatory reactions resulting from I/R injury, thereby contributing to improvements in skin flap survival.

Publish Year 2022
Country Japan
Rank Positive
Journal Nature Scientific Reports
Primary Topic Skin
Secondary TopicSurgery/Transplantation
Model Rat
Tertiary TopicIschemia-Reperfusion Injury
Vehicle Gas (Sustained Release)
pH N/A
Application Ingestion