2016 Fiscal Year Final Research Report
A basic study on the effects of low-power laser irradiation and LED irradiation on the cardiac activity
| Project/Area Number |
26350548
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Soka University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 低出力レーザー / LED / ECG / 自動性 / 心房細動性不整脈 |
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| Outline of Final Research Achievements |
In this study, the effect of low-power laser irradiation (LLI) or LED irradiation on cardiac activity of frogs as welll as a patient were examined. The green LLI (532 nm) or LED (532±10 nm) irradiation to the frog heart induced a transient tachycardia, made keping relatively higher heart rate, and prolonged the time to arrest. The red LLI (808 nm) induced bradycardia and shortened the time to arrest, while red LED (660±10 nm) showed the same tendency as green LED property. In the case of human patient who has arrhythmia with atrial fibrillation (Af), green LED decreased the Af appearance and increased the P-wave appearance on his ECG. Therefore it is suggested that at least the green LLI or LED irradiation can activate or normalize the cardiac activity.
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| Free Research Field |
神経生理学
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