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Erschienen in: Lasers in Medical Science 6/2022

22.03.2022 | Original Article

Effect of low-level laser therapy (LLLT) on cognitive impairment among patients with chronic schizophrenia: a double-blind randomized placebo-controlled clinical trial

verfasst von: Ali Kheradmand, Faraj Tabeie, Pegah Seif, Omid Rezaei, Mohammad Taghi Yasamy

Erschienen in: Lasers in Medical Science | Ausgabe 6/2022

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Abstract

Low-level laser therapy (LLLT) is a noninvasive technique used in different medical fields. It has been applied in different medical areas such as wound healing, traumatic brain injuries, neurological disorders, cognitive disorders, Alzheimer’s disease, pain, and arthritis, with different results. We studied the effectiveness of LLLT on cognitive impairment in patients with chronic schizophrenia. A randomized controlled double-blind clinical trial was performed in a men’s chronic treatment center, in Razi Psychiatric Hospital, in Tehran, Iran. We screened the cognitive impairment by Mini-Mental State Examination (MMSE). Positive And Negative Syndrome Scale (PANSS) was also used to assess the patients’ positive and negative symptoms. Seventeen consenting patients were randomly allocated to the treatment arm, and 15 to the sham treatment control arm. The mean age of the control and treated patients was 49.47 ± 6.99 and 50.24 ± 7.69, respectively. No significant difference in PANSS and MMSE test scores was detected in both groups after the 6th session and after 2 months of follow-up after laser therapy. The positive and negative scales and agitation and excitement levels did not change significantly in either group. Nevertheless, the depression/anxiety subscale in the PANSS test showed a significant reduction after 6 sessions but did not persist after 2 months. No improvement in cognitive impairment or the positive and negative symptoms was detected after LLLT in patients with chronic schizophrenia. Trial registration: IRCT 20210520051349N1.
Literatur
2.
Zurück zum Zitat Chung H Dai T Sharma SK Huang YY Carroll JD Hamblin MR. 2012 The nuts and bolts of low-level laser (Light) therapy. Annals of Biomedical Engineering [Internet]. Feb [cited 2021 Mar 25];40(2):516–33. Available from: /pmc/articles/PMC3288797/ Chung H Dai T Sharma SK Huang YY Carroll JD Hamblin MR. 2012 The nuts and bolts of low-level laser (Light) therapy. Annals of Biomedical Engineering [Internet]. Feb [cited 2021 Mar 25];40(2):516–33. Available from: /pmc/articles/PMC3288797/
3.
Zurück zum Zitat Kontoes P, Vlachos S, Konstantinos M, Anastasia L, Myrto S (2006) Hair induction after laser-assisted hair removal and its treatment. J Am Acad Dermatol 54(1):64–67CrossRef Kontoes P, Vlachos S, Konstantinos M, Anastasia L, Myrto S (2006) Hair induction after laser-assisted hair removal and its treatment. J Am Acad Dermatol 54(1):64–67CrossRef
4.
Zurück zum Zitat Hamblin MR. 2016 Photobiomodulation or low-level laser therapy [Internet]. Vol. 9, Journal of Biophotonics. Wiley-VCH Verlag; [cited 2021 Mar 25]. p. 1122–4. Available from: /pmc/articles/PMC5215795/ Hamblin MR. 2016 Photobiomodulation or low-level laser therapy [Internet]. Vol. 9, Journal of Biophotonics. Wiley-VCH Verlag; [cited 2021 Mar 25]. p. 1122–4. Available from: /pmc/articles/PMC5215795/
5.
Zurück zum Zitat B Cotler H. 2015 The use of low-level laser therapy (LLLT) for musculoskeletal pain. MOJ Orthopedics & Rheumatology [Internet]. Jun 9 [cited 2021 Apr 17];2(5). Available from: /pmc/articles/PMC4743666/ B Cotler H. 2015 The use of low-level laser therapy (LLLT) for musculoskeletal pain. MOJ Orthopedics & Rheumatology [Internet]. Jun 9 [cited 2021 Apr 17];2(5). Available from: /pmc/articles/PMC4743666/
7.
8.
Zurück zum Zitat Hamblin MR Demidova TN. 2006 Mechanisms of low-level light therapy. In: Mechanisms for low-light therapy. SPIE;. p. 614001. Hamblin MR Demidova TN. 2006 Mechanisms of low-level light therapy. In: Mechanisms for low-light therapy. SPIE;. p. 614001.
9.
Zurück zum Zitat Zhang Y Song S Fong CC Tsang CH Yang Z Yang M. 2003 cDNA microarray analysis of gene expression profiles in human fibroblast cells irradiated with red light. Journal of Investigative Dermatology [Internet]. May 1 [cited 2021 Mar 26];120(5):849–57. Available from: https://pubmed.ncbi.nlm.nih.gov/12713592/ Zhang Y Song S Fong CC Tsang CH Yang Z Yang M. 2003 cDNA microarray analysis of gene expression profiles in human fibroblast cells irradiated with red light. Journal of Investigative Dermatology [Internet]. May 1 [cited 2021 Mar 26];120(5):849–57. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​12713592/​
10.
Zurück zum Zitat Oron U. 2006 Photoengineering of tissue repair in skeletal and cardiac muscles [Internet]. Vol. 24, Photomedicine and Laser Surgery. Mary Ann Liebert, Inc. 2 Madison Avenue Larchmont, NY 10538 USA; [cited 2021 Mar 26]. p. 111–20. Available from: https://doi.org/10.1089/pho.2006.24.111 Oron U. 2006 Photoengineering of tissue repair in skeletal and cardiac muscles [Internet]. Vol. 24, Photomedicine and Laser Surgery. Mary Ann Liebert, Inc. 2 Madison Avenue Larchmont, NY 10538 USA; [cited 2021 Mar 26]. p. 111–20. Available from: https://​doi.​org/​10.​1089/​pho.​2006.​24.​111
11.
Zurück zum Zitat Oron U Yaakobi T Oron A Hayam G Gepstein L Rubin O et al. 2001 Attenuation of infarct size in rats and dogs after myocardial infarction by low-energy laser irradiation. Lasers in Surgery and Medicine [Internet]. [cited 2021 Mar 26];28(3):204–11. Available from: https://pubmed.ncbi.nlm.nih.gov/11295753/ Oron U Yaakobi T Oron A Hayam G Gepstein L Rubin O et al. 2001 Attenuation of infarct size in rats and dogs after myocardial infarction by low-energy laser irradiation. Lasers in Surgery and Medicine [Internet]. [cited 2021 Mar 26];28(3):204–11. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​11295753/​
12.
Zurück zum Zitat Poiani G da CR Zaninotto AL Carneiro AMC Zangaro RA Salgado ASI Parreira RB et al. 2018 Photobiomodulation using low-level laser therapy (LLLT) for patients with chronic traumatic brain injury: a randomized controlled trial study protocol. Trials [Internet]. Jan 8 [cited 2021 Mar 26];19(1):17. Available from: https://doi.org/10.1186/s13063-017-2414-5 Poiani G da CR Zaninotto AL Carneiro AMC Zangaro RA Salgado ASI Parreira RB et al. 2018 Photobiomodulation using low-level laser therapy (LLLT) for patients with chronic traumatic brain injury: a randomized controlled trial study protocol. Trials [Internet]. Jan 8 [cited 2021 Mar 26];19(1):17. Available from: https://​doi.​org/​10.​1186/​s13063-017-2414-5
13.
Zurück zum Zitat Wang Z Zhang Y Dong L Zheng Z Zhong D Long X et al. 2021 Effects of morning blue-green 500 nm light therapy on cognition and biomarkers in middle-aged and older adults with subjective cognitive decline and mild cognitive impairment: study protocol for a randomized controlled trial. Journal of Alzheimer’s Disease [Internet]. Apr 3 [cited 2021 Apr 17];1–16. Available from: https://www.medra.org/servlet/aliasResolver?alias=iospress&doi=https://doi.org/10.3233/JAD-201560 Wang Z Zhang Y Dong L Zheng Z Zhong D Long X et al. 2021 Effects of morning blue-green 500 nm light therapy on cognition and biomarkers in middle-aged and older adults with subjective cognitive decline and mild cognitive impairment: study protocol for a randomized controlled trial. Journal of Alzheimer’s Disease [Internet]. Apr 3 [cited 2021 Apr 17];1–16. Available from: https://​www.​medra.​org/​servlet/​aliasResolver?​alias=​iospress&​doi=​https://​doi.​org/​10.​3233/​JAD-201560
14.
Zurück zum Zitat Moskvin SV Khadartsev AA. 2020 Methods of effective low-level laser therapy in the treatment of patients with bronchial asthma (literature review) [Internet]. Vol. 10, BioMedicine (France). China Medical University; [cited 2021 Apr 17]. p. 1–20. Available from: https://pubmed.ncbi.nlm.nih.gov/33854908/ Moskvin SV Khadartsev AA. 2020 Methods of effective low-level laser therapy in the treatment of patients with bronchial asthma (literature review) [Internet]. Vol. 10, BioMedicine (France). China Medical University; [cited 2021 Apr 17]. p. 1–20. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​33854908/​
15.
Zurück zum Zitat Meireles SM Jones A Jennings F Suda AL Parizotto NA Natour J. 2010 Assessment of the effectiveness of low-level laser therapy on the hands of patients with rheumatoid arthritis: a randomized double-blind controlled trial. Clinical Rheumatology [Internet]. May [cited 2021 Apr 17];29(5):501–9. Available from: https://pubmed.ncbi.nlm.nih.gov/20082104/ Meireles SM Jones A Jennings F Suda AL Parizotto NA Natour J. 2010 Assessment of the effectiveness of low-level laser therapy on the hands of patients with rheumatoid arthritis: a randomized double-blind controlled trial. Clinical Rheumatology [Internet]. May [cited 2021 Apr 17];29(5):501–9. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​20082104/​
16.
Zurück zum Zitat Gur A Karakoc M Cevik R Nas K Sarac AJ Karakoc M. 2003 Efficacy of low power laser therapy and exercise on pain and functions in chronic low back pain. Lasers in Surgery and Medicine [Internet]. [cited 2021 Apr 17];32(3):233–8. Available from: https://pubmed.ncbi.nlm.nih.gov/12605431/ Gur A Karakoc M Cevik R Nas K Sarac AJ Karakoc M. 2003 Efficacy of low power laser therapy and exercise on pain and functions in chronic low back pain. Lasers in Surgery and Medicine [Internet]. [cited 2021 Apr 17];32(3):233–8. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​12605431/​
17.
Zurück zum Zitat Green MF. 1996 What are the functional consequences of neurocognitive deficits in schizophrenia? [Internet]. Vol. 153, American Journal of Psychiatry. American Psychiatric Association; [cited 2021 Mar 26]. p. 321–30. Available from: https://doi.org/10.1176/ajp.153.3.321 Green MF. 1996 What are the functional consequences of neurocognitive deficits in schizophrenia? [Internet]. Vol. 153, American Journal of Psychiatry. American Psychiatric Association; [cited 2021 Mar 26]. p. 321–30. Available from: https://​doi.​org/​10.​1176/​ajp.​153.​3.​321
19.
Zurück zum Zitat Economou M Madianos M Peppou LE Souliotis K Patelakis A Stefanis C. 2014 Cognitive social capital and mental illness during economic crisis: a nationwide population-based study in Greece. Social Science and Medicine [Internet]. Jan [cited 2021 Mar 22];100:141–7. Available from: https://pubmed.ncbi.nlm.nih.gov/24444849/ Economou M Madianos M Peppou LE Souliotis K Patelakis A Stefanis C. 2014 Cognitive social capital and mental illness during economic crisis: a nationwide population-based study in Greece. Social Science and Medicine [Internet]. Jan [cited 2021 Mar 22];100:141–7. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​24444849/​
20.
Zurück zum Zitat de La Serna E Flamarique I Castro-Fornieles J Pons A Puig O Andrés-Perpiña S et al. 2011 Two-year follow-up of cognitive functions in schizophrenia spectrum disorders of adolescent patients treated with electroconvulsive therapy. Journal of Child and Adolescent Psychopharmacology [Internet]. Dec 1 [cited 2021 Mar 26];21(6):611–9. Available from: https://doi.org/10.1089/cap.2011.0012 de La Serna E Flamarique I Castro-Fornieles J Pons A Puig O Andrés-Perpiña S et al. 2011 Two-year follow-up of cognitive functions in schizophrenia spectrum disorders of adolescent patients treated with electroconvulsive therapy. Journal of Child and Adolescent Psychopharmacology [Internet]. Dec 1 [cited 2021 Mar 26];21(6):611–9. Available from: https://​doi.​org/​10.​1089/​cap.​2011.​0012
22.
Zurück zum Zitat Jiang Y Guo Z Xing G He L Peng H Du F et al. 2019 Effects of high-frequency transcranial magnetic stimulation for cognitive deficit in schizophrenia: a meta-analysis. Frontiers in Psychiatry [Internet]. [cited 2021 Apr 20];10(MAR). Available from: https://pubmed.ncbi.nlm.nih.gov/30984036/ Jiang Y Guo Z Xing G He L Peng H Du F et al. 2019 Effects of high-frequency transcranial magnetic stimulation for cognitive deficit in schizophrenia: a meta-analysis. Frontiers in Psychiatry [Internet]. [cited 2021 Apr 20];10(MAR). Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​30984036/​
23.
Zurück zum Zitat Litscher D Litscher G. 2014 Laser therapy and dementia: a database analysis and future aspects on LED-based systems. Vol. 2014, International Journal of Photoenergy. Hindawi Publishing Corporation;. Litscher D Litscher G. 2014 Laser therapy and dementia: a database analysis and future aspects on LED-based systems. Vol. 2014, International Journal of Photoenergy. Hindawi Publishing Corporation;.
24.
Zurück zum Zitat Saltmarche AE Naeser MA Ho KF Hamblin MR Lim L. 2017 Significant improvement in cognition in mild to moderately severe dementia cases treated with transcranial plus intranasal photobiomodulation: case series report. Photomedicine and Laser Surgery [Internet]. Aug 1 [cited 2021 May 2];35(8):432–41. Available from: https://pubmed.ncbi.nlm.nih.gov/28186867/ Saltmarche AE Naeser MA Ho KF Hamblin MR Lim L. 2017 Significant improvement in cognition in mild to moderately severe dementia cases treated with transcranial plus intranasal photobiomodulation: case series report. Photomedicine and Laser Surgery [Internet]. Aug 1 [cited 2021 May 2];35(8):432–41. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​28186867/​
25.
Zurück zum Zitat Folstein MF Folstein SE McHugh PR. 1975 “Mini-mental state”: a practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research [Internet]. [cited 2021 Apr 20];12(3):189–98. Available from: https://pubmed.ncbi.nlm.nih.gov/1202204/ Folstein MF Folstein SE McHugh PR. 1975 “Mini-mental state”: a practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research [Internet]. [cited 2021 Apr 20];12(3):189–98. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​1202204/​
27.
Zurück zum Zitat Creavin ST Wisniewski S Noel-Storr AH Trevelyan CM Hampton T Rayment D et al. 2016 Mini-Mental State Examination (MMSE) for the detection of dementia in clinically unevaluated people aged 65 and over in community and primary care populations. Vol. 2016, Cochrane Database of Systematic Reviews. John Wiley and Sons Ltd;. Creavin ST Wisniewski S Noel-Storr AH Trevelyan CM Hampton T Rayment D et al. 2016 Mini-Mental State Examination (MMSE) for the detection of dementia in clinically unevaluated people aged 65 and over in community and primary care populations. Vol. 2016, Cochrane Database of Systematic Reviews. John Wiley and Sons Ltd;.
28.
Zurück zum Zitat Galea M Woodward M. 2005 Mini-Mental State Examination (MMSE): commentary. Vol. 51, Australian Journal of Physiotherapy. Australian Physiotherapy Association;. p. 198. Galea M Woodward M. 2005 Mini-Mental State Examination (MMSE): commentary. Vol. 51, Australian Journal of Physiotherapy. Australian Physiotherapy Association;. p. 198.
29.
30.
Zurück zum Zitat Ivanova E Khan A Liharska L Reznik A Kuzmin S Kushnir O et al. 2018 Validation of the Russian version of the positive and negative syndrome scale (PANSS-ru) and normative data. Innovations in Clinical Neuroscience [Internet]. Sep 1 [cited 2021 Apr 18];15(9–10):9–10. Available from: /pmc/articles/PMC6292716/ Ivanova E Khan A Liharska L Reznik A Kuzmin S Kushnir O et al. 2018 Validation of the Russian version of the positive and negative syndrome scale (PANSS-ru) and normative data. Innovations in Clinical Neuroscience [Internet]. Sep 1 [cited 2021 Apr 18];15(9–10):9–10. Available from: /pmc/articles/PMC6292716/
32.
Zurück zum Zitat Masaeli N Omranifard V Maracy M Kheirabadi G Khedri A. 2016 Validity, reliability and factor analysis of Persian version of schizophrenia quality of life scale. Journal of Education and Health Promotion [Internet]. [cited 2021 Apr 18];5(1):10. Available from: /pmc/articles/PMC4959255/ Masaeli N Omranifard V Maracy M Kheirabadi G Khedri A. 2016 Validity, reliability and factor analysis of Persian version of schizophrenia quality of life scale. Journal of Education and Health Promotion [Internet]. [cited 2021 Apr 18];5(1):10. Available from: /pmc/articles/PMC4959255/
33.
Zurück zum Zitat Cho GM Lee SY Park JH Kim MJ Park KJ Choi BT et al. 2020 Photobiomodulation using a low-level light-emitting diode improves cognitive dysfunction in the 5XFAD mouse model of Alzheimer’s disease. Journals of Gerontology - Series A Biological Sciences and Medical Sciences [Internet]. Mar 9 [cited 2021 Apr 20];75(4):631–9. Available from: https://pubmed.ncbi.nlm.nih.gov/30346494/ Cho GM Lee SY Park JH Kim MJ Park KJ Choi BT et al. 2020 Photobiomodulation using a low-level light-emitting diode improves cognitive dysfunction in the 5XFAD mouse model of Alzheimer’s disease. Journals of Gerontology - Series A Biological Sciences and Medical Sciences [Internet]. Mar 9 [cited 2021 Apr 20];75(4):631–9. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​30346494/​
34.
Zurück zum Zitat Sommer AP Bieschke J Friedrich RP Zhu D Wanker EE Fecht HJ et al. 2012 670 nm laser light and EGCG complementarily reduce amyloid-β aggregates in human neuroblastoma cells: basis for treatment of Alzheimer’s disease? Photomedicine and Laser Surgery [Internet]. Jan 1 [cited 2021 Apr 21];30(1):54–60. Available from: https://pubmed.ncbi.nlm.nih.gov/22029866/ Sommer AP Bieschke J Friedrich RP Zhu D Wanker EE Fecht HJ et al. 2012 670 nm laser light and EGCG complementarily reduce amyloid-β aggregates in human neuroblastoma cells: basis for treatment of Alzheimer’s disease? Photomedicine and Laser Surgery [Internet]. Jan 1 [cited 2021 Apr 21];30(1):54–60. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​22029866/​
35.
Zurück zum Zitat Yang X Askarova S Sheng W Chen JK Sun AY Sun GY et al. 2010 Low energy laser light (632.8 nm) suppresses amyloid-β peptide-induced oxidative and inflammatory responses in astrocytes. Neuroscience [Internet]. Dec 15 [cited 2021 Apr 21];171(3):859–68. Available from: https://pubmed.ncbi.nlm.nih.gov/20884337/ Yang X Askarova S Sheng W Chen JK Sun AY Sun GY et al. 2010 Low energy laser light (632.8 nm) suppresses amyloid-β peptide-induced oxidative and inflammatory responses in astrocytes. Neuroscience [Internet]. Dec 15 [cited 2021 Apr 21];171(3):859–68. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​20884337/​
36.
Zurück zum Zitat Cardoso F dos S de Souza Oliveira Tavares C Araujo BHS Mansur F Lopes-Martins RÁB Gomes da Silva S. 2021 Improved spatial memory and neuroinflammatory profile changes in aged rats submitted to photobiomodulation therapy. Cellular and Molecular Neurobiology [Internet]. Mar 11 [cited 2021 Apr 29];1–12. Available from: https://doi.org/10.1007/s10571-021-01069-4 Cardoso F dos S de Souza Oliveira Tavares C Araujo BHS Mansur F Lopes-Martins RÁB Gomes da Silva S. 2021 Improved spatial memory and neuroinflammatory profile changes in aged rats submitted to photobiomodulation therapy. Cellular and Molecular Neurobiology [Internet]. Mar 11 [cited 2021 Apr 29];1–12. Available from: https://​doi.​org/​10.​1007/​s10571-021-01069-4
37.
Zurück zum Zitat Barrett DW, Gonzalez-Lima F (2013) Transcranial infrared laser stimulation produces beneficial cognitive and emotional effects in humans. Neuroscience 29(230):13–23CrossRef Barrett DW, Gonzalez-Lima F (2013) Transcranial infrared laser stimulation produces beneficial cognitive and emotional effects in humans. Neuroscience 29(230):13–23CrossRef
39.
Zurück zum Zitat Daniel DG Weinberger DR Jones DW Zigun JR Coppola R Handel S et al. 1991 The effect of amphetamine on regional cerebral blood flow during cognitive activation in schizophrenia. Journal of Neuroscience [Internet]. [cited 2021 May 1];11(7):1907–17. Available from: https://pubmed.ncbi.nlm.nih.gov/2066768/ Daniel DG Weinberger DR Jones DW Zigun JR Coppola R Handel S et al. 1991 The effect of amphetamine on regional cerebral blood flow during cognitive activation in schizophrenia. Journal of Neuroscience [Internet]. [cited 2021 May 1];11(7):1907–17. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​2066768/​
40.
Zurück zum Zitat Egan MF Goldberg TE Kolachana BS Callicott JH Mazzanti CM Straub RE et al. 2001 Effect of COMT Val108/158 Met genotype on frontal lobe function and risk for schizophrenia. Proceedings of the National Academy of Sciences of the United States of America [Internet]. Jun 5 [cited 2021 May 1];98(12):6917–22. Available from: https://pubmed.ncbi.nlm.nih.gov/11381111/ Egan MF Goldberg TE Kolachana BS Callicott JH Mazzanti CM Straub RE et al. 2001 Effect of COMT Val108/158 Met genotype on frontal lobe function and risk for schizophrenia. Proceedings of the National Academy of Sciences of the United States of America [Internet]. Jun 5 [cited 2021 May 1];98(12):6917–22. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​11381111/​
41.
Zurück zum Zitat Salgado ASI Zângaro RA Parreira RB Kerppers II. 2015 The effects of transcranial LED therapy (TCLT) on cerebral blood flow in the elderly women. Lasers in Medical Science [Internet]. Jan 1 [cited 2021 May 2];30(1):339–46. Available from: https://doi.org/10.1007/s10103-014-1669-2 Salgado ASI Zângaro RA Parreira RB Kerppers II. 2015 The effects of transcranial LED therapy (TCLT) on cerebral blood flow in the elderly women. Lasers in Medical Science [Internet]. Jan 1 [cited 2021 May 2];30(1):339–46. Available from: https://​doi.​org/​10.​1007/​s10103-014-1669-2
42.
Zurück zum Zitat Chao LL. 2019 Effects of home photobiomodulation treatments on cognitive and behavioral function, cerebral perfusion, and resting-state functional connectivity in patients with dementia: a pilot trial. Photobiomodulation, Photomedicine, and Laser Surgery [Internet]. Mar 1 [cited 2021 May 2];37(3):133–41. Available from: https://pubmed.ncbi.nlm.nih.gov/31050950/ Chao LL. 2019 Effects of home photobiomodulation treatments on cognitive and behavioral function, cerebral perfusion, and resting-state functional connectivity in patients with dementia: a pilot trial. Photobiomodulation, Photomedicine, and Laser Surgery [Internet]. Mar 1 [cited 2021 May 2];37(3):133–41. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​31050950/​
43.
Zurück zum Zitat Saltmarche AE Naeser MA Ho KF Hamblin MR Lim L. 2017 Significant improvement in cognition in mild to moderately severe dementia cases treated with transcranial plus intranasal photobiomodulation: case series report. Photomedicine and Laser Surgery [Internet]. Aug 1 [cited 2021 Apr 13];35(8):432–41. Available from: https://pubmed.ncbi.nlm.nih.gov/28186867/ Saltmarche AE Naeser MA Ho KF Hamblin MR Lim L. 2017 Significant improvement in cognition in mild to moderately severe dementia cases treated with transcranial plus intranasal photobiomodulation: case series report. Photomedicine and Laser Surgery [Internet]. Aug 1 [cited 2021 Apr 13];35(8):432–41. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​28186867/​
44.
Zurück zum Zitat Berman MH Halper JP Nichols TW H J Lundy A Huang JH. 2017 Photobiomodulation with near infrared light helmet in a pilot, placebo controlled clinical trial in dementia patients testing memory and cognition. Journal of Neurology and Neuroscience [Internet]. [cited 2021 May 2];08(01). Available from: https://pubmed.ncbi.nlm.nih.gov/28593105/ Berman MH Halper JP Nichols TW H J Lundy A Huang JH. 2017 Photobiomodulation with near infrared light helmet in a pilot, placebo controlled clinical trial in dementia patients testing memory and cognition. Journal of Neurology and Neuroscience [Internet]. [cited 2021 May 2];08(01). Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​28593105/​
45.
Zurück zum Zitat Berman MH Nichols TW. 2019 Treatment of neurodegeneration: integrating photobiomodulation and neurofeedback in Alzheimer’s dementia and Parkinson’s: a review. Photobiomodulation, Photomedicine, and Laser Surgery [Internet]. Oct 1 [cited 2021 May 2];37(10):623–34. Available from: https://pubmed.ncbi.nlm.nih.gov/31647776/ Berman MH Nichols TW. 2019 Treatment of neurodegeneration: integrating photobiomodulation and neurofeedback in Alzheimer’s dementia and Parkinson’s: a review. Photobiomodulation, Photomedicine, and Laser Surgery [Internet]. Oct 1 [cited 2021 May 2];37(10):623–34. Available from: https://​pubmed.​ncbi.​nlm.​nih.​gov/​31647776/​
Metadaten
Titel
Effect of low-level laser therapy (LLLT) on cognitive impairment among patients with chronic schizophrenia: a double-blind randomized placebo-controlled clinical trial
verfasst von
Ali Kheradmand
Faraj Tabeie
Pegah Seif
Omid Rezaei
Mohammad Taghi Yasamy
Publikationsdatum
22.03.2022
Verlag
Springer London
Erschienen in
Lasers in Medical Science / Ausgabe 6/2022
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-022-03545-9

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