1. A study on light therapy as a pain relief measure
| Title | Effects of 660- and 980-nm low-level laser therapy on neuropathic pain relief following chronic constriction injury in rat sciatic nerve |
| Conducted by | M. Masoumipoor, S. B. Jamie, A. Janzadeh, F. Nasirinezhad, M. Soleimani & M. Kerdary |
| Published on | 16th March 2014. |
| Journal | Lasers in Medical Science (LIMS) |
| Number of participants | Thirty Wistar adult male rats (230–320 g) were used for the study |
Method of study:
The study primarily focuses on light therapy as a pain relief for Neuropathic pain. The study used different wavelengths of LLLT in the injured sciatic nerve, to study the effects of LLLT on neuropathic pain. For the purposes of this study, the researchers used thirty Wistar adult male rats. The rats were divided into 3 groups.
Findings:
The study concluded that Low-level laser therapy can ably treat Neuropathic pain. The study further highlights that 660-nm wavelengths had better therapeutic effects than the 980-nm wavelength. The 660nm showcases the great potential for use in clinical application and should be the focus of further studies.
2. A study of light therapy and its anti-inflammatory properties.
| Title | Photobiomodulation with 808-nm diode laser light promotes wound healing of human endothelial cells through increased reactive oxygen species production stimulating mitochondrial oxidative phosphorylation |
| Conducted by | Andrea Amaroli , Silvia Ravera , Francesca Baldini , Stefano Benedicenti, Isabella Panfoli , Laura Vergani |
| Published on | 3rd April 2019 |
| Journal | Lasers in Medical Science (LIMS) |
| Number of participants | Only human endothelial cells were used |
Method of study:
Only human endothelial cells were used for the purpose of this trial. The cells were showered with 808 wavelengths of light. The cells that were exposed to the light were then compared to a control group of cells.
Key findings:
The results of the study clearly pointed to the positive correlation between the 808 wavelengths of light and the metabolism of the human endothelial cell. 808 nm of light meant a higher metabolism, higher metabolism meant better pain relief and wound rejuvenation.
3. A study on light therapy to treat pain stemming from rheumatoid arthritis
| Title | Low-level laser therapy (classes I, II, and III) in the treatment of rheumatoid arthritis |
| Conducted by | L Brosseau, V Welch, G Wells, R deBie, A Gam, K Harman, M Morin, B Shea, P Tugwell |
| Published on | October 2005 |
| Journal | Cochrane Database of Systematic Reviews |
| Number of participants | 204 patients |
Method of study:
The study consisted of 204 patients. The 204 patients were divided into two groups. Each group consisted of 112 patients. The first group was exposed to light therapy while the second group of 112 patients served as the control group.
Findings:
The study concluded that light therapy can effectively treat pain from rheumatoid arthritis. The study further points out that light therapy is most effective when applied for a period of 4 weeks.
4. A study on Low-level laser therapy as a treatment for chronic joint pain.
| Title | A systematic review of low-level laser therapy with location-specific doses for pain from chronic joint disorders |
| Conducted by | Jan M Bjordal , Christian Couppé, Roberta T Chow, Jan Tunér, Elisabeth Anne Ljunggren |
| Published on | 3rd Jan 2003 |
| Journal | The Journal of Physiotherapy |
| Number of participants | A review of 88 random trials on the subject |
Method of study:
The review randomly chooses 88 trials to determine the efficacy of light therapy as a treatment for chronic joint pain. The reviewers painstakingly reviewed each study to determine the legitimacy of each review.
Findings:
The review declared the results of 80 trials to be legitimate and furthermore concluded that doses of light therapy can greatly alter the amount of pain experienced by a person.
