Hydrogen protects rats from dermatitis caused by local radiation

Area of Science:

• Biomedical science
• Radiation oncology
• Molecular biology

Background:

• Radiation therapy can cause adverse effects on normal tissues, including radiodermatitis.
• Hydrogen has shown potential as a radioprotective agent in previous studies.
• The current research focuses on hydrogen's efficacy against radiation-induced cutaneous effects.

Purpose of the Study:

• To evaluate the radioprotective efficacy of hydrogen in mitigating radiation-induced dermatitis in head-and-neck cancer patients.
• To investigate the molecular mechanisms underlying hydrogen's protective effects.
• To assess hydrogen's effectiveness under single-dose and fractionated radiation conditions.

Main Methods:

• Rats underwent single-dose or fractionated irradiation of the head-and-neck area, with or without pre-irradiation hydrogen solution injection.
• In vitro experiments assessed hydrogen's effect on radiation-induced cell viability, apoptosis, and biochemical markers.
• HaCaT cells were used to evaluate hydrogen's protective capacity against ionizing radiation injury.

Main Results:

• Hydrogen significantly reduced dermatitis severity and accelerated tissue recovery in rats after single-dose irradiation (15 or 20 Gy).
• Protection was observed against cumulative doses of 30 Gy delivered fractionally.
• Hydrogen protected HaCaT cells from radiation-induced damage, inhibiting injury.

Conclusions:

• Hydrogen exhibits a beneficial effect in managing acute radiodermatitis.
• Hydrogen shows promise as a therapeutic agent to reduce radiation side effects.
• Further research into hydrogen's radioprotective mechanisms is warranted.