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Photobiomodulation

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https://www.readbyqxmd.com/read/27913969/laser-photobiomodulation-830-and-660%C3%A2-nm-in-mast-cells-vegf-fgf-and-cd34-of-the-musculocutaneous-flap-in-rats-submitted-to-nicotine
#1
Lais Mara Siqueira das Neves, Gabriella de Paula Marcondes Ferreira Leite, Alexandre Marcio Marcolino, Carlos Eduardo Pinfildi, Sérgio Britto Garcia, João Eduardo de Araújo, Elaine Caldeira de Oliveira Guirro
The aim of this study was to investigate the effect of laser photobiomodulation (PBM) on the viability of the transverse rectus abdominis musculocutaneous (TRAM) flap in rats subjected to the action of nicotine. We evaluated 60 albino Wistar rats, divided into six groups of ten animals. Group 1 (saline) underwent the surgical technique to obtain a TRAM flap; group 2 (laser 830 nm) underwent the surgical technique and was irradiated with a laser 830 nm; group 3 (laser 660 nm) underwent the surgical technique and was irradiated with a laser 660 nm; group 4 was treated with nicotine subcutaneously (2 mg/kg/2×/day/4 weeks) and underwent surgery; group 5 (nicotine + laser 830 nm) was exposed to nicotine, underwent the surgical technique, and was irradiated with a laser 830 nm; group 6 (nicotine + laser 660 nm) was exposed to nicotine, underwent the surgical technique, and was irradiated with a laser 660 nm...
December 2, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27887804/the-effect-of-photobiomodulation-on-chemotherapy-induced-peripheral-neuropathy-a-randomized-sham-controlled-clinical-trial
#2
Peter A Argenta, Karla V Ballman, Melissa A Geller, Linda F Carson, Rahel Ghebre, Sally A Mullany, Deanna G K Teoh, Boris J N Winterhoff, Colleen L Rivard, Britt K Erickson
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is a common side effect of cancer therapy with few efficacious treatments. METHODS: We enrolled 70 patients with CIPN in a randomized, double-blinded, sham-controlled, cross-over trial to determine if photobiomodulation (PBM)±physiotherapy reduced the symptoms of neuropathy compared to sham treatment. At the conclusion of follow-up, sham-arm patients could cross-over into a third arm combining PBM and physiotherapy to determine if multimodal treatment had additive effects...
November 22, 2016: Gynecologic Oncology
https://www.readbyqxmd.com/read/27874264/photobiomodulation-in-human-muscle-tissue-an-advantage-in-sports-performance
#3
Cleber Ferraresi, Ying-Ying Huang, Michael R Hamblin
Photobiomodulation (PBM) describes the use of red or near-infrared (NIR) light to stimulate, heal, and regenerate damaged tissue. Both preconditioning (light delivered to muscles before exercise) and PBM applied after exercise can increase sports performance in athletes. This review covers the effects of PBM on human muscle tissue in clinical trials in volunteers related to sports performance and in athletes. The parameters used were categorized into those with positive effects or no effects on muscle performance and recovery...
November 22, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27874039/effects-of-light-emitting-diode-irradiation-on-the-osteogenesis-of-human-umbilical-cord-mesenchymal-stem-cells-in-vitro
#4
Dazhi Yang, Weihong Yi, Ertian Wang, Min Wang
The aim of this study was to examine the effects of light-emitting diode (LED) photobiomodulation therapy on the proliferation and differentiation of human umbilical cord mesenchymal stem cells (hUMSCs) cultured in osteogenic differentiation medium. HUMSCs were irradiated with an LED light at 620 nm and 2 J/cm(2) and monitored for cell proliferation and osteogenic differentiation activity. The experiment involved four groups of cells: the control group; the osteogenic group (osteo group); the LED group; the osteogenic + LED group (LED + osteo group)...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27861614/photobiomodulation-with-pulsed-and-continuous-wave-near-infrared-laser-810-nm-al-ga-as-augments-dermal-wound-healing-in-immunosuppressed-rats
#5
Gaurav K Keshri, Asheesh Gupta, Anju Yadav, Sanjeev K Sharma, Shashi Bala Singh
Chronic non-healing cutaneous wounds are often vulnerable in one or more repair phases that prevent normal healing and pose challenges to the use of conventional wound care modalities. In immunosuppressed subject, the sequential stages of healing get hampered, which may be the consequences of dysregulated or stagnant wound inflammation. Photobiomodulation (PBM) or low-level laser (light) therapy (LLLT) emerges as a promising drug-free, non-invasive biophysical approach for promoting wound healing, reduction of inflammation, pain and restoration of functions...
2016: PloS One
https://www.readbyqxmd.com/read/27859389/influence-of-gold-nanoparticles-on-wound-healing-treatment-in-rat-model-photobiomodulation-therapy
#6
PikSuan Lau, Noriah Bidin, Shumaila Islam, Wan Norsyuhada Binti Wan Mohd Shukri, Nurlaily Zakaria, Nurfatin Musa, Ganesan Krishnan
BACKGROUND AND OBJECTIVE: The aim of this study is to investigate the effect of gold nanoparticles (AuNPs) in photobiomodulation therapy (PBMT) on wound healing process. MATERIALS AND METHODS: AuNPs are synthesized by Q-switched Nd:YAG laser ablation technique. Cutaneous wound are induced on 45 Sprague Dawley rats on its dorsal part and then randomly divided into three groups. One group serves as non-treatment group (GC) and another two groups are subjected to AuNPs with and without PBMT...
November 12, 2016: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/27846381/mechanistic-insights-into-pathological-changes-in-the-diabetic-retina-implications-for-targeting-diabetic-retinopathy
#7
REVIEW
Sayon Roy, Timothy S Kern, Brian Song, Caren Stuebe
Increasing evidence points to inflammation as one of the key players in diabetes-mediating adverse effects to the neuronal and vascular components of the retina. Sustained inflammation induces biochemical and molecular changes, ultimately contributing to retinal complications and vision loss in diabetic retinopathy. In this review, we describe changes involving metabolic abnormalities secondary to hyperglycemia, oxidative stress, and activation of transcription factors, together with neuroglial alterations in the diabetic retina...
November 12, 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27761668/decrowding-of-lower-anterior-segment-with-and-without-photobiomodulation-a-single-center-randomized-clinical-trial
#8
Amer Z Nahas, Said A Samara, Tannaz A Rastegar-Lari
The aim of this study was to evaluate the effect of low-level light therapy using light-emitting diodes (LEDs) on the speed of tooth movements that were required for the leveling and aligning of the lower anterior segment during non-extraction orthodontic treatment. The sample was comprised of patients (n = 40) with lower anterior crowding who were treated with self-ligating orthodontic brackets and a standardized wire sequence. A test group of patients (n = 20) who were treated with extraoral infrared light therapy for 20 min daily with at least 80 % compliance was compared to a control group (n = 20)...
October 20, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27752702/isolated-and-combined-effects-of-photobiomodulation-therapy-topical-nonsteroidal-anti-inflammatory-drugs-and-physical-activity-in-the-treatment-of-osteoarthritis-induced-by-papain
#9
Shaiane Silva Tomazoni, Ernesto Cesar Pinto Leal-Junior, Lúcio Frigo, Rodney Capp Pallotta, Simone Teixeira, Patricia de Almeida, Jan Magnus Bjordal, Rodrigo Álvaro Brandão Lopes-Martins
No abstract text is available yet for this article.
October 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/27752476/shining-light-on-the-head-photobiomodulation-for-brain-disorders
#10
Michael R Hamblin
Photobiomodulation (PBM) describes the use of red or near-infrared light to stimulate, heal, regenerate, and protect tissue that has either been injured, is degenerating, or else is at risk of dying. One of the organ systems of the human body that is most necessary to life, and whose optimum functioning is most worried about by humankind in general, is the brain. The brain suffers from many different disorders that can be classified into three broad groupings: traumatic events (stroke, traumatic brain injury, and global ischemia), degenerative diseases (dementia, Alzheimer's and Parkinson's), and psychiatric disorders (depression, anxiety, post traumatic stress disorder)...
December 2016: BBA Clinical
https://www.readbyqxmd.com/read/27751953/photobiomodulation-of-human-adipose-derived-stem-cells-using-810nm-and-980nm-lasers-operates-via-different-mechanisms-of-action
#11
Yuguang Wang, Ying-Ying Huang, Yong Wang, Peijun Lyu, Michael R Hamblin
Photobiomodulation (PBM) using red or near-infrared (NIR) light has been used to stimulate the proliferation and differentiation of adipose-derived stem cells. The use of NIR wavelengths such as 810nm is reasonably well accepted to stimulate mitochondrial activity and ATP production via absorption of photons by cytochrome c oxidase. However, the mechanism of action of 980nm is less well understood. Here we study the effects of both wavelengths (810nm and 980nm) on adipose-derived stem cells in vitro. Both wavelengths showed a biphasic dose response, but 810nm had a peak dose response at 3J/cm(2) for stimulation of proliferation at 24h, while the peak dose for 980nm was 10-100 times lower at 0...
October 15, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27749899/analgesic-effect-of-photobiomodulation-on-bothrops-moojeni-venom-induced-hyperalgesia-a-mechanism-dependent-on-neuronal-inhibition-cytokines-and-kinin-receptors-modulation
#12
Nikele Nadur-Andrade, Camila Squarzoni Dale, Victoria Regina da Silva Oliveira, Elaine Flamia Toniolo, Regiane Dos Santos Feliciano, José Antonio da Silva, Stella Regina Zamuner
BACKGROUND: Envenoming induced by Bothrops snakebites is characterized by drastic local tissue damage that involves an intense inflammatory reaction and local hyperalgesia which are not neutralized by conventional antivenom treatment. Herein, the effectiveness of photobiomodulation to reduce inflammatory hyperalgesia induced by Bothrops moojeni venom (Bmv), as well as the mechanisms involved was investigated. METHODOLOGY/PRINCIPAL FINDINGS: Bmv (1 μg) was injected through the intraplantar route in the right hind paw of mice...
October 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27726041/photobiomodulation-therapy-in-the-modulation-of-inflammatory-mediators-and-bradykinin-receptors-in-an-experimental-model-of-acute-osteoarthritis
#13
Vanessa Lima Cavalcante de Oliveira, José Antonio Silva, Andrey Jorge Serra, Rodney Capp Pallotta, Evela Aparecida Pereira da Silva, Anna Cristina de Farias Marques, Regiane Dos Santos Feliciano, Rodrigo Labat Marcos, Ernesto Cesar Pinto Leal-Junior, Paulo de Tarso Camillo de Carvalho
The objective of this study was to evaluate the effects of photobiomodulation therapy (PBMT) on inflammatory indicators, i.e., inflammatory mediators (TNF-α and CINC-1), and pain characterized by hyperalgesia and B1 and B2 receptor activation at 6, 24, and 48 h after papain-induced osteoarthritis (OA) in rats. Fifty-four rats were subjected to hyperalgesia evaluations and then divided randomly into three groups-a control group and two groups OA and OA PBMT group by using laser parameters at wavelength (808 nm), output power (50 mW), energy per point (4 Joules), power density (1...
October 10, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27726040/effects-of-photobiomodulation-therapy-pharmacological-therapy-and-physical-exercise-as-single-and-or-combined-treatment-on-the-inflammatory-response-induced-by-experimental-osteoarthritis
#14
Shaiane Silva Tomazoni, Ernesto Cesar Pinto Leal-Junior, Rodney Capp Pallotta, Simone Teixeira, Patricia de Almeida, Rodrigo Álvaro Brandão Lopes-Martins
Osteoarthritis (OA) triggers increased levels of inflammatory markers, including prostaglandin (PG) E2 and proinflammatory cytokines. The elevation of cytokine levels is closely associated with increased articular tissue degeneration. Thus, the use of combination therapies may presumably be able to enhance the effects on the modulation of inflammatory markers. The present study aimed to evaluate and compare the effects of photobiomodulation therapy (PBMT), physical exercise, and topical nonsteroidal anti-inflammatory drug (NSAID) use on the inflammatory process after they were applied either alone or in different combinations...
October 10, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27716941/photobiomodulation-by-infrared-diode-laser-effects-on-intracellular-calcium-concentration-and-nitric-oxide-production-of-paramecium
#15
Andrea Amaroli, Alberico Benedicenti, Sara Ferrando, Steven Parker, Wayne Selting, Lorenzo Gallus, Stefano Benedicenti
In Paramecium cilia beating is correlated to intracellular calcium concentration ([Ca(2+) ]i) and nitric oxide (NO) synthesis. Recent findings affirm that photobiomodulation (PBM) can transiently increase the [Ca(2+) ]i in mammalian cells. In the present study we investigated the effect of both 808nm and 980nm diode laser irradiated with flat-top hand-piece on [Ca(2+) ]i and NO production of Paramecium primaurelia, to provide basic information for the development of new therapeutic approaches. In the experiments, the laser power in CW varied (0...
September 26, 2016: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/27669902/gene-expression-profiling-reveals-aryl-hydrocarbon-receptor-as-a-possible-target-for-photobiomodulation-when-using-blue-light
#16
Anja Becker, Anna Klapczynski, Natalia Kuch, Fabiola Arpino, Katja Simon-Keller, Carolina De La Torre, Carsten Sticht, Frank A van Abeelen, Gerrit Oversluizen, Norbert Gretz
Photobiomodulation (PBM) with blue light induces a biphasic dose response curve in proliferation of immortalized human keratinocytes (HaCaT), with a maximum anti-proliferative effect reached with 30min (41.4 J/cm2). The aim of this study was to test the photobiomodulatory effect of 41.4 J/cm2 blue light irradiation on ROS production, apoptosis and gene expression at different time points after irradiation of HaCaT cells in vitro and assess its safety. ROS concentration was increased 30 min after irradiation...
September 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27666974/photobiomodulation-by-laser-therapy-rescued-auditory-neuropathy-induced-by-ouabain
#17
Min Young Lee, Seung-Hyun Bae, So-Young Chang, Jae-Hun Lee, Se-Hyung Kim, Jin-Chul Ahn, Phil-Sang Chung, Wesley Moy, Jae Yun Jung
Auditory neuropathy is a hearing disorder caused by impaired auditory nerve function. The lack of information about the pathophysiology of this disease limits early diagnosis and further treatment. Laser therapy is a novel approach to enhance nerve growth or induce axonal regeneration. We induced auditory neural degeneration sparing the sensory epithelium with local ouabain application in an animal model and observed the rescue effect of photobiomodulation (PBM), showing recovered auditory function and favorable histologic outcome...
October 28, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27650508/photobiomodulation-blue-and-green-light-encourages-osteoblastic-differentiation-of-human-adipose-derived-stem-cells-role-of-intracellular-calcium-and-light-gated-ion-channels
#18
Yuguang Wang, Ying-Ying Huang, Yong Wang, Peijun Lyu, Michael R Hamblin
UNLABELLED: Human adipose-derived stem cells (hASCs) have the potential to differentiate into several different cell types including osteoblasts. Photobiomodulation (PBM) or low level laser therapy (LLLT) using red or near-infrared wavelengths has been reported to have effects on both proliferation and osteogenic differentiation of stem cells. We examined the effects of delivering four different wavelengths (420 nm, 540 nm, 660 nm, 810 nm) at the same dose (3 J/cm(2)) five times (every two days) on hASCs cultured in osteogenic medium over three weeks...
September 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27649962/analysis-of-photobiomodulation-associated-or-not-with-platelet-rich-plasma-on-repair-of-muscle-tissue-by-raman-spectroscopy
#19
Guilherme Akio Tamura Ozaki, Regina Celi Trindade Camargo, Tatiana Emy Koike, Thiago Alves Garcia, Robson Chacon Castoldi, João Domingos Augusto Dos Santos Pereira, Carlos José Leopoldo Constantino, José Carlos Silva Camargo Filho
Treatment of muscle injuries usually results in the interruption of sports practice; thus, studies aimed at accelerating the return to activity, with proper tissue repair, are important. Therefore, this study aimed to evaluate the effects of photobiomodulation (PBM), associated or not with platelet-rich plasma (PRP), on the treatment of muscle injury. Thirty-five animals were used and divided into five groups (n = 7): control (C), control lesion (CL), lesion treated with low-level laser therapy (LLLT) (LLt), lesion treated with PRP (LP), and lesion treated with both techniques, LLLT and PRP (LLtP)...
December 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27640000/photobiomodulation-therapy-reduces-apoptotic-factors-and-increases-glutathione-levels-in-a-neuropathic-pain-model
#20
Atousa Janzadeh, Farinaz Nasirinezhad, Masoume Masoumipoor, Seyed Behnameldin Jameie, Parisa Hayat
Neuropathic pain (NP) is caused by damage to the nervous system due to reactive oxygen spices (ROS) increase, antioxidants reduction, ATP production imbalance, and induction of apoptosis. In this investigation, we applied low-level laser 660 nm (photobiomodulation therapy) as a new strategy to modulate pain. In order to study the effects of photobiomodulation therapy (660 nm) on NP, chronic constriction injury (CCI) model was selected. Low-level laser of 660 nm was used for 2 weeks. Thermal and mechanical hyperalgesia were measured before and after surgery on days 7 and 14, respectively...
December 2016: Lasers in Medical Science
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