The Anti-Inflammatory Effect of Hydrogen Gas Inhalation and Its Influence on Laser-Induced Choroidal Neovascularization in a Mouse Model of Neovascular Age-Related Macular Degeneration
Autor: | Pei-Chen Lai, Chi-Feng Hung, Xv-Hui Zong, Wen-Chin Ko, Yun-Hsiang Chang, I-Chia Liang, Der-Chen Chang, Yi-Ru Lin, Yu-Jou Hsu |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
genetic structures
Anti-Inflammatory Agents Angiogenesis Inhibitors Pharmacology medicine.disease_cause Macular Degeneration Mice chemistry.chemical_compound Medicine hydrogen gas Fluorescein Angiography Biology (General) Spectroscopy Inhalation General Medicine Computer Science Applications Vascular endothelial growth factor Chemistry Choroidal neovascularization Tumor necrosis factor alpha Gases medicine.symptom Fundus Oculi QH301-705.5 Alpha (ethology) Inflammation choroidal neovascularization Catalysis Article Inorganic Chemistry Administration Inhalation Animals Physical and Theoretical Chemistry QD1-999 Molecular Biology age-related macular degeneration business.industry Lasers Organic Chemistry Macular degeneration medicine.disease eye diseases Mice Inbred C57BL Disease Models Animal chemistry Wet Macular Degeneration sense organs business Oxidative stress Hydrogen |
Zdroj: | International Journal of Molecular Sciences Volume 22 Issue 21 International Journal of Molecular Sciences, Vol 22, Iss 12049, p 12049 (2021) |
ISSN: | 1422-0067 |
Popis: | Background: Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly. Choroidal neovascularization (CNV) is the major pathologic feature of neovascular AMD. Oxidative damages and the ensuing chronic inflammation are representative of trigger events. Hydrogen gas (H2) has been demonstrated as an antioxidant and plays a role in the regulation of oxidative stress and inflammation. This experiment aimed to investigate the influence of H2 inhalation on a mouse model of CNV. Methods: Laser was used to induce CNV formation. C57BL/6J mice were divided into five groups: the control group the laser-only group and the 2 h, 5 h, and 2.5 h/2.5 h groups that received laser and H2 inhalation (21% oxygen, 42% hydrogen, and 37% nitrogen mixture) for 2 h, 5 h, and 2.5 h twice every day, respectively. Results: The severity of CNV leakage on fluorescence angiography showed a significant decrease in the H2 inhalation groups. The mRNA expression of hypoxia-inducible factor 1 alpha and its immediate downstream target vascular endothelial growth factor (VEGF) showed significant elevation after laser, and this elevation was suppressed in the H2 inhalation groups in an inhalation period length-related manner. The mRNA expression of cytokines, including tumor necrosis factor alpha and interlukin-6, also represented similar results. Conclusion: H2 inhalation could alleviate CNV leakage in a laser-induced mouse CNV model, and the potential mechanism might be related to the suppression of the inflammatory process and VEGF-driven CNV formation. |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |