Studies and Citations
ADDICTION
ATOPIC DERMATITIS
CANCER/CANCER CARE
Hamblin MR, Nelson ST, Strahan JR. Photobiomodulation and Cancer: What Is the Truth? Photomed Laser Surg. 2018 May;36(5):241-245. doi: 10.1089/pho.2017.4401. Epub 2018 Feb 21. PMID: 29466089; PMCID: PMC5946726.
Robijns J, Nair RG, Lodewijckx J, Arany P, Barasch A, Bjordal JM, Bossi P, Chilles A, Corby PM, Epstein JB, Elad S, Fekrazad R, Fregnani ER, Genot MT, Ibarra AMC, Hamblin MR, Heiskanen V, Hu K, Klastersky J, Lalla R, Latifian S, Maiya A, Mebis J, Migliorati CA, Milstein DMJ, Murphy B, Raber-Durlacher JE, Roseboom HJ, Sonis S, Treister N, Zadik Y, Bensadoun RJ. Photobiomodulation therapy in management of cancer therapy-induced side effects: WALT position paper 2022. Front Oncol. 2022 Aug 30;12:927685. doi: 10.3389/fonc.2022.927685. PMID: 36110957; PMCID: PMC9468822.Pereira, S.T., Silva, C.R., Nuñez, S.C. and Ribeiro, M.S. (2021), Safety and Clinical Impact of a Single Red Light Irradiation on Breast Tumor-Bearing Mice. Photochem Photobiol, 97: 435-442.
https://doi.org/10.1111/php.13338
- It has been shown by MTT assay that at 24 h post-exposure time point, only LED red light with wavelength 660 nm possessed anti-proliferative effects against both cell lines with 40% reduction of cell viability. The morphology of LED 660 nm irradiated cells was found flatten with enlarged cell size, typical characteristic of cell senescent. Indications of autophagy activities following the irradiation
- an increase number of autophagosomes formation in LED 660 nm irradiated cells compared to control cells.
- Electron dense bodies observed in these cells under TEM micrographs, leading to the conclusion that LED 660 nm irradiation promoted anti-proliferative activities through autophagy in breast cancer-origin cells. These findings have suggested that LED 660 nm might be developed and be employed as an alternative cancer treatment method in future.
- In 16 studies with 25 cell lines, the influence of PBM on neoplastic cell viability was examined. PBM was found to reduce the viability of 13 of 25 neoplastic cell lines either in isolation or in the presence of another experimental agent, and PBM was found not to influence the viability of a further 8 cell lines. Of the remaining 4 cell lines, the viability of 3 was found to be dependent on total energy per unit area (fluence), whereas the viability of the remaining cell line was dependent on wavelength of light, exhibiting reduced viability when exposed to blue light only.
- Despite theoretical concerns, there is no clinical evidence to support the proposition that PBM should be avoided in patients who are being treated for cancer, previously had cancer, or have risk factors for cancer.
PBMT showed a significant effect to prevent grade 3 RD in breast cancer patients.
COSMETIC / COLLAGEN/ANTI-AGING
- The treated subjects experienced significantly improved skin complexion and skin feeling, assessed skin roughness, and ultrasonographic measured collagen density. The blinded clinical evaluation of photographs confirmed significant improvement in the intervention groups compared with the control.
- There were no negative findings.
- n=136
** Ken Tan1, Hyup-Woo Lee1,2, Seung-Kyu Han1 Effect of Low-Level Laser Therapy on Proliferation and Collagen Synthesis of Human Fibroblasts in Vitro
Journal of Wound Management and Research 2018; 14(1): 1-6.
Published online: March 30, 2018. DOI: https://doi.org/10.22467/
jwmr.2018.00283 Huiling Ma1, Jong-Phil Yang1, Rui
COVID-19/LONG COVID
Aguida B, Pooam M, Ahmad M, Jourdan N. Infrared light therapy relieves TLR-4 dependent hyper-inflammation of the type induced by COVID-19. Commun Integr Biol. 2021 Sep 15;14(1):200-211. doi: 10.1080/19420889.2021.1965718. PMID: 34552685; PMCID: PMC8451450.
Effective for increasing immunity, helping tissue repair, reducing pro-inflammatory cytokines. Read more citations here:
DEPRESSION
- Double-blind, sham-controlled study on the safety and efficacy [change in Hamilton Depression Rating Scale (HAM-D17) total score at end-point] of adjunct t-PBM NIR, 823nm
- t-PBM with NIR light demonstrated antidepressant properties with a medium to large effect size in patients with MDD.
DYSMENORRHEA (MENSTRUAL PAIN)
EDEMA
EYE HEALTH
https://pubmed.ncbi.nlm.nih.gov/11776448/
Whelan HT, Smits RL Jr, Buchman EV, Whelan NT, Turner SG, Margolis DA, Cevenini V, Stinson H, Ignatius R, Martin T, Cwiklinski J, Philippi AF, Graf WR, Hodgson B, Gould L, Kane M, Chen G, Caviness J. Effect of NASA light-emitting diode irradiation on wound healing. J Clin Laser Med Surg. 2001 Dec;19(6):305-14. doi: 10.1089/104454701753342758. PMID: 11776448.
Hartmann DD, Martins RP, Silva TCD, et al. Oxidative stress is involved in LLLT mechanism of action on skin healing in rats.Braz J Med Biol Res. 2021;54(6):e10293. Published 2021 Apr 26. doi:10.1590/1414-431X202010293
Kenareh R, Mirmohammadi SJ, Khatibi A, Shamsi F, Mehrparvar AH. The Comparison of The Efficacy of Photobiomodulation and Ultrasound in the Treatment of Chronic Non-specific Neck Pain: A Randomized Single-Blind Controlled Trial. Journal of Lasers in Medical Sciences. 2021 ;12:e20. DOI: 10.34172/jlms.2021.20. PMID: 34733743; PMCID: PMC8558734.
https://journals.sagepub.com/doi/pdf
/10.2203/dose-response.14-032.Agrawal
- Agrawal T, Gupta GK, Rai V, Carroll JD, Hamblin MR. Pre-Conditioning with Low-Level Laser (Light) Therapy: Light before the Storm. Dose-Response. October 2014. doi:10.2203/dose-response.14-032.Agrawal
José Carlos Tatmatsu-Rocha, Cleber Ferraresi, Michael R. Hamblin, Flávio Damasceno Maia, Nilberto Robson Falcão do Nascimento, Patricia Driusso, Nivaldo Antonio Parizotto,
Low-level laser therapy (904nm) can increase collagen and reduce oxidative and nitrosative stress in diabetic wounded mouse skin,
Journal of Photochemistry and Photobiology B: Biology,
Volume 164, 2016, Pages 96-102, ISSN 1011-1344,
https://doi.org/10.1016/j.jphotobiol.2016.09.017.
(https://www.sciencedirect.com/science
/article/pii/S101113441530172X)
HAIR GROWTH
- RCT
- n=100
- 24 weeks of treatment
- LLLT-treated scalp had significantly greater hair coverage (14.2% vs. 11.8%, p < .001).
- Significant improvement from baseline in the LLLT group noted study investigators
- hair thickness
- hair count
- hair coverage observed on the treated side than in the sham light-treated side at the 12- and 24-week visits.
- No serious adverse events were observed.
HEALING
FERTILITY (FEMALE AND MALE)
- Results showed that irradiating human sperm with low-level 830-nm diode laser can improve their progressive motility depending on both laser density and post-exposure time.
- n=22
INFLAMMATION
IMMUNE FUNCTION
MITOCHONDRIA
MUSCLE CONDITIONING
PAIN RELIEF
Kenareh R, Mirmohammadi SJ, Khatibi A, Shamsi F, Mehrparvar AH. The Comparison of The Efficacy of Photobiomodulation and Ultrasound in the Treatment of Chronic Non-specific Neck Pain: A Randomized Single-Blind Controlled Trial. Journal of Lasers in Medical Sciences. 2021 ;12:e20. DOI: 10.34172/jlms.2021.20.
Acute Low Back Pain with Radiculopathy: A Double-Blind, Randomized, Placebo-Controlled Study
Ljubica M. Konstantinovic, Zeljko M. Kanjuh, Andjela N. Milovanovic, Milisav R. Cutovic, Aleksandar G. Djurovic, Viktorija G. Savic, Aleksandra S. Dragin, and Nesa D. Milovanovic
Photomedicine and Laser Surgery 2010 28:4, 553-560
- A randomized, double-blind, placebo-controlled trial
- n=546
- Statistically significant in all outcomes measured (p < 0.001)
- Results show better improvement in acute LBP treated with LLLT
- Systematic review and meta-analysis
- We solely included randomized placebo-controlled trials involving participants with KOA according to the American College of Rheumatology and/or Kellgren/Lawrence criteria, in which LLLT was applied to participants’ knee(s)
- 22 trials (n=1063) were meta-analysed. Risk of bias was insignificant. Overall, pain was significantly reduced by LLLT compared with placebo at the end of therapy.
- LLLT is a non-invasive treatment modality,(1-2) which has been reported to induce anti-inflammatory effects. (2–7)
- 1. Rayegani SM, Raeissadat SA, Heidari S, et al. Safety and effectiveness of low-level laser therapy in patients with knee osteoarthritis: a systematic review and meta-analysis. J Lasers Med Sci 2017;8:S12–19.
- 2. Hamblin MR. Can osteoarthritis be treated with light? Arthritis Res Ther 2013;15.
- 3. Tomazoni SS, Leal-Junior ECP, Pallotta RC, et al. Effects of photobiomodulation therapy, pharmacological therapy, and physical exercise as single and/or combined treatment on the inflammatory response induced by experimental osteoarthritis. Lasers Med Sci 2017;32:101–8.
- 4. Tomazoni SS, Leal-Junior ECP, Frigo L, et al. Isolated and combined effects of photobiomodulation therapy, topical nonsteroidal anti-inflammatory drugs, and physical activity in the treatment of osteoarthritis induced by papain. J Biomed Opt 2016;21:108001.
- 5. Wang P, Liu C, Yang X, et al. Effects of low-level laser therapy on joint pain, synovitis, anabolic, and catabolic factors in a progressive osteoarthritis rabbit model. Lasers Med Sci 2014;29:1875–85.
- 6. Assis L, Almeida T, Milares LP, et al. Musculoskeletal atrophy in an experimental model of knee osteoarthritis: the effects of exercise training and low-level laser therapy. Am J Phys Med Rehabil 2015;94:609–16.
- 7. Pallotta RC, Bjordal JM, Frigo L, et al. Infrared (810-nm) low-level laser therapy on rat experimental knee inflammation. Lasers Med Sci 2012;27:71–8.
Ishaq Ahmed, Mohammad Ali Mohseni Bandpei, Syed Amir Gilani, Ashfaq Ahmad, Faryal Zaidi, “Effectiveness of Low-Level Laser Therapy in Patients with Discogenic Lumbar Radiculopathy: A Double-Blind Randomized Controlled Trial”, Journal of Healthcare Engineering, vol. 2022, Article ID 6437523, 11 pages, 2022. https://doi.org/10.1155/2022/6437523
- Conclusions. The LLLT is proved as an efficient adjunct therapy to conventional physical therapy for discogenic lumbar radiculopathy. (low back pain with radiation down legs)
PREGNANCY
ROSACEA
SEXUAL DYSFUNCTION
European College of Neuropsychopharmacology (ECNP). “Lack of interest in sex successfully treated by exposure to bright light.” ScienceDaily. ScienceDaily, 18 September 2016.
<www.sciencedaily.com/releases/2016
/09/160918214443.htm>>.
TRAUMATIC BRAIN INJURY
WEIGHT LOSS/BODY CONTOURING
- Double-blind, randomized, placebo-controlled trial
- There were no negative findings.
- n=67
- Results: Participants in the treatment group demonstrated an overall reduction in total circumference across all three sites of 3.51 in.
- (P < 0.001) compared with control subjects who revealed a 0.684 reduction (P < 0.071745). Test group participants demonstrated a reduction of 0.98 in. (P < 0.0001) across the waist, 1.05 in. (P < 0.01) across the hip, and 0.85 in. (P < 0.01) and 0.65 in. (P < 0.01) across the right and left thighs from baseline to 2 weeks (end of treatment).
- Participants were retrospectively assessed at an individual clinic in the United States.
- Compared with baseline, a statistically significant 2.99 in. (7.59 cm) mean LOSS was observed at the post-procedure evaluation point (P < 0.0001). When analyzed individually, the waist, hips, and thighs each reported a statistically significant reduction of 1.12, 0.769, and 1.17, respectively.
- There were no negative findings.
- n=86
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