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Low level light therapy

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https://www.readbyqxmd.com/read/28924525/anti-inflammatory-and-antioxidant-effects-of-sesame-oil-on-atherosclerosis-a-descriptive-literature-review
#1
REVIEW
Edmund Hsu, Sam Parthasarathy
Sesame oil (SO) is a supplement that has been known to have anti-inflammatory and antioxidant properties, which makes it effective for reducing atherosclerosis and the risk of cardiovascular disease. Due to the side effects of statins, the current recommended treatment for atherosclerosis and cardiovascular diseases, the idea of using dietary and nutritional supplementation has been explored. The benefits of a dietary health regime have piqued curiosity because many different cultures have reaped health benefits through the ingredients in their cooking with negligible side effects...
July 6, 2017: Curēus
https://www.readbyqxmd.com/read/28918229/design-of-modified-botulinum-neurotoxin-a1-variants-with-a-shorter-persistence-of-paralysis-and-duration-of-action
#2
Daniel Scheps, Manuela López de la Paz, Marcel Jurk, Fred Hofmann, Jürgen Frevert
Botulinum neurotoxins (BoNTs) are classified by their antigenic properties into seven serotypes (A-G) and in addition by their corresponding subtypes. They are further characterized by divergent onset and duration of effect. Injections of low doses of botulinum neurotoxins cause localized muscle paralysis that is beneficial for the treatment of several medical disorders and aesthetic indications. Optimizing the therapeutic properties could offer new treatment opportunities. This report describes a rational design approach to modify the pharmacological properties by mutations in the C-terminus of BoNT/A1 light chain (LC)...
September 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28910167/expression-of-antimicrobial-peptides-by-uveal-and-cutaneous-melanoma-cells-and-investigation-of-their-role-in-tumor-cell-migration-and-vasculogenic-mimicry
#3
Joseph C Manarang, Deborah C Otteson, Alison M McDermott
AIMS: Antimicrobial peptides (AMPs) have been implicated in the pathogenesis of several cancers, although there is also evidence suggesting potential for novel, AMP-based antitumor therapies. Discerning potential roles of AMPs in tumor pathogenesis may provide valuable insight into the mechanisms of novel AMP-based antitumor therapy. METHODS: mRNA expression of the AMPs α defensin (HNP-1); cathelicidin (LL-37); and β defensins (hBD-1, hBD-2, hBD-3, hBD-4) in human uveal and cutaneous melanoma cell lines, primary human uveal melanocytes, and primary human uveal melanoma cells was determined by reverse transcriptase polymerase chain reaction...
September 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28885372/light-therapy-for-multiple-sclerosis-associated-fatigue-study-protocol-for-a-randomized-controlled-trial
#4
RANDOMIZED CONTROLLED TRIAL
Farrah J Mateen, Natalie C Manalo, Sara J Grundy, Melissa A Houghton, Gladia C Hotan, Hans Erickson, Aleksandar Videnovic
BACKGROUND: Fatigue is the most commonly reported symptom among multiple sclerosis (MS) patients, more than a quarter of whom consider fatigue to be their most disabling symptom. However, there are few effective treatment options for fatigue. We aim to investigate whether supplemental exposure to bright white light will reduce MS-associated fatigue. METHODS: Eligible participants will have clinically confirmed multiple sclerosis based on the revised McDonald criteria (2010) and a score ≥36 on the Fatigue Severity Scale (FSS)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28878330/the-impact-of-wavelengths-of-led-light-therapy-on-endothelial-cells
#5
Sabrina Rohringer, Wolfgang Holnthoner, Sidrah Chaudary, Paul Slezak, Eleni Priglinger, Martin Strassl, Karoline Pill, Severin Mühleder, Heinz Redl, Peter Dungel
Low level light therapy receives increasing interest in the fields of tissue regeneration and wound healing. Several in vivo studies demonstrated the positive effects of LLLT on angiogenesis. This study aimed to investigate the underlying properties in vitro by comparing the effects of light therapy by light emitting diodes of different wavelengths on endothelial cells in vitro. Human umbilical vein endothelial cells were treated with either 475 nm, 516 nm or 635 nm light. Control cells were not illuminated...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#6
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28845377/an-extremely-rare-manifestation-of-multiple-myeloma-an-immunoglobulin-d-secreting-testicular-plasmacytoma
#7
Ashish Sharma, Tina Binazir, Alexandre Sintow, Chi Chan Lee, Sameer Shaharyar, Jason Tache
Multiple myelomas (MM) of the immunoglobulin D (IgD) subtype is rare amongst plasma cell malignancies. It can present a diagnostic challenge because of the low amount of immunoglobulin in the serum. The amount of monoclonal (M)-protein is often undetectable on electrophoresis. Historically, survival in these patients was typically shorter compared to the immunoglobulin A (IgA) and immunoglobulin G (IgG) subtypes due to advanced disease upon presentation. With the advent of better diagnostic techniques, the prognosis of this disease is changing...
June 27, 2017: Curēus
https://www.readbyqxmd.com/read/28842625/umbilical-cord-derived-mesenchymal-stem-cell-extracts-reduce-colitis-in-mice-by-re-polarizing-intestinal-macrophages
#8
Ji-Young Song, Hyo Jeong Kang, Joon Seok Hong, Chong Jai Kim, Jae-Yoon Shim, Christopher W Lee, Jene Choi
Human umbilical cord mesenchymal stem cells (hUC-MSCs), originating in Wharton's jelly, are multipotent stem cells that home to damaged tissues and can modulate the immune system. We examined whether administering extracts of MSCs (MSC-Ex) instead of MSCs could augment the beneficial effects of MSC therapy by overcoming the low homing efficiency of MSCs systemically administered in inflammatory bowel diseases (IBD). Dextran sodium sulfate-induced colitis model was established in C57BL/6 mice, and MSC-Ex was administered intraperitoneally...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28812164/efficacy-of-fractional-lasers-in-treating-alopecia-a-literature-review
#9
Marina Perper, Adam S Aldahan, Rachel A Fayne, Christopher P Emerson, Keyvan Nouri
Hair loss stemming from different types of alopecia, such as androgenic alopecia and alopecia areata, negatively affects over half the population and, in many circumstances, causes serious psychosocial distress. Current treatment options for alopecia, such as minoxidil, anthralin, and intralesional corticosteroids, vary efficacy and side effect profiles. It is known that low-level laser/light therapies (LLLT), or photobiomodulations, such as the US FDA-cleared HairMax Lasercomb®, He-Ne laser, and excimer laser, are relatively affordable, user-friendly, safe, and effective forms of treatment for hair loss...
August 16, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28783253/dual-stage-light-amplified-photodynamic-therapy-against-hypoxic-tumor-based-on-an-o2-self-sufficient-nanoplatform
#10
Li-Han Liu, Yao-Hui Zhang, Wen-Xiu Qiu, Lu Zhang, Fan Gao, Bin Li, Lu Xu, Jin-Xian Fan, Zi-Hao Li, Xian-Zheng Zhang
Tumor hypoxia severely limits the efficacy of traditional photodynamic therapy (PDT). Here, a liposome-based nanoparticle (designated as LipoMB/CaO2 ) with O2 self-sufficient property for dual-stage light-driven PDT is demonstrated to address this problem. Through a short time irradiation, (1) O2 activated by the photosensitizer methylene blue (MB) can induce lipid peroxidation to break the liposome, and enlarge the contact area of CaO2 with H2 O, resulting in accelerated O2 production. Accelerated O2 level further regulates hypoxic tumor microenvironment and in turn improves (1) O2 generation by MB under another long time irradiation...
August 7, 2017: Small
https://www.readbyqxmd.com/read/28776111/methylene-blue-mediated-photobiomodulation-on-human-osteoblast-cells
#11
Gamze Bölükbaşı Ateş, Ayşe Ak, Bora Garipcan, Murat Gülsoy
Photobiomodulation (PBM) and photodynamic therapy (PDT) are two major methods, which use light in medicine and dentistry. PBM uses low-level laser light to induce cell proliferation and activity. In contrast, PDT use laser light combined with a photosensitizer (PS) to cause cell death. Due to similar, not fully understood mechanisms and biphasic response of light, unexpected and complex outcomes may be observed. In the present study, the effect of 635 nm laser light, with power density 50 mW/cm(2), at three different energy densities (0...
August 4, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28752704/-preparation-characterization-and-cytology-study-of-pluronic-pei-micelles
#12
Wang Hebin, L I Yang, Liu Xingang, Zhou Jun, Wang Qingqing, Tang Guping
Objective: To prepare and characterize Pluronic-PEI micelles as a drug/gene delivery system. Methods: We used the low-molecular-weight PEI as a cross-linking agent to prepare the Pluronic-PEI micelles. The particle size, zeta potential and critical micelle concentration (CMC) were measured by dynamic light scattering (DLS) and pyrene fluorescence probe. The cytotoxicity, transfection efficiency and the impact on the intracellular ATP and P-gp levels of Pluronic-PEI micelles were investigated at the cellular level...
March 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28748217/mechanisms-and-applications-of-the-anti-inflammatory-effects-of-photobiomodulation
#13
Michael R Hamblin
Photobiomodulation (PBM) also known as low-level level laser therapy is the use of red and near-infrared light to stimulate healing, relieve pain, and reduce inflammation. The primary chromophores have been identified as cytochrome c oxidase in mitochondria, and calcium ion channels (possibly mediated by light absorption by opsins). Secondary effects of photon absorption include increases in ATP, a brief burst of reactive oxygen species, an increase in nitric oxide, and modulation of calcium levels. Tertiary effects include activation of a wide range of transcription factors leading to improved cell survival, increased proliferation and migration, and new protein synthesis...
2017: AIMS Biophysics
https://www.readbyqxmd.com/read/28741866/a-review-of-available-laser-and-intense-light-source-home-devices-a-dermatologist-s-perspective
#14
REVIEW
Margit Lw Juhász, Melissa K Levin, Ellen S Marmur
BACKGROUND: Home optical devices are becoming an increasingly popular treatment modality sought out by patients for dermatologic pathologies such as acne, hair removal and anti-aging, as these devices are a low-cost and convenient therapy choice. METHODS: An Internet search using PubMed.gov was completed with search terms, "home device dermatology," "home device acne," "home device hair" or "hair removal," and "home device aging." RESULTS: Currently, there are multiple home optical devices available on the market...
July 25, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28739168/adipose-derived-stem-cell-spheroid-treated-with-low-level-light-irradiation-accelerates-spontaneous-angiogenesis-in-mouse-model-of-hindlimb-ischemia
#15
In-Su Park, Phil-Sang Chung, Jin Chul Ahn
BACKGROUND AIMS: We investigated whether low-level light irradiation (LLLI) before adipose-derived stromal cells (ASCs) spheroid transplantation improved hind-limb functional recovery by stimulation of angiogenesis. METHODS: The spheroid, composed of ASCs, was irradiated with low-level light and expressed angiogenic factors, including vascular endothelial growth factor and basic fibroblast growth factor. From immunochemical staining analysis, the spheroid of ASCs included CD31(+), KDR(+) and CD34(+), whereas monolayer-cultured ASCs were negative for these markers...
July 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28703220/tumour-induced-osteomalacia
#16
REVIEW
Salvatore Minisola, Munro Peacock, Seijii Fukumoto, Cristiana Cipriani, Jessica Pepe, Sri Harsha Tella, Michael T Collins
Tumour-induced osteomalacia (TIO), also known as oncogenic osteomalacia, is a rare paraneoplastic disorder caused by tumours that secrete fibroblast growth factor 23 (FGF23). Owing to the role of FGF23 in renal phosphate handling and vitamin D synthesis, TIO is characterized by decreased renal tubular reabsorption of phosphate, by hypophosphataemia and by low levels of active vitamin D. Chronic hypophosphataemia ultimately results in osteomalacia (that is, inadequate bone mineralization). The diagnosis of TIO is usually suspected when serum phosphate levels are chronically low in the setting of bone pain, fragility fractures and muscle weakness...
July 13, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28702985/photobiomodulation-with-polarized-light-in-the-treatment-of-cutaneous-and-mucosal-ulcerative-lesions
#17
S E Aragona, F R Grassi, G Nardi, J Lotti, G Mereghetti, E Canavesi, E Equizi, A M Puccio, T Lotti
In recent decades, regenerative medicine has achieved an important evolution at both a conceptual level and scientific production, which explains the current and future possibilities of therapy and daily clinical practice. The main aim of regenerative medicine is the complex system of repair/regeneration. The current literature on the subject demonstrates the advantage of visible light therapy for skin injuries and diseases with the photobiomodulation in which light at low energy levels modulates intra- and extra-cellular photoreceptors by molecular and cellular processes that can stimulate both anti-inflammatory mechanisms and cell proliferative response...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28700406/the-use-of-multistate-models-to-examine-associations-of-stress-and-adherence-with-transitions-among-hiv-care-states-observed-in-a-clinical-hiv-cohort
#18
Sandra Blitz, Tony Antoniou, Ann Burchell, Sharon Walmsley, Lucia Light, Sandra Gardner, Sean Rourke, Curtis Cooper, Claire Kendall, Mona Loutfy, Anita Rachlis, Wendy Wobeser, Anita Benoit, Janet Raboud
BACKGROUND: The "cascade of care" is a framework for quantifying the trajectory of people with HIV along the continuum of HIV care. We extended this framework to recognize that individuals may transition back and forth between states of care and to identify factors associated with movement among states of care over time, with particular focus on stress, depression and adherence. METHODS: The Ontario HIV Treatment Network Cohort Study is a multisite HIV clinical cohort...
July 3, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28690083/analgesic-effects-of-preinjection-low-level-laser-light-therapy-lllt-before-third-molar-surgery-a-double-blind-randomized-controlled-trial
#19
Jacco G C Tuk, Arjen J van Wijk, Ine C Mertens, Zühal Keleş, Jérôme A H Lindeboom, Dan M J Milstein
OBJECTIVE: The aim of this study was to evaluate the analgesic effects of low-level laser therapy (LLLT) on preinjection sites in patients scheduled for third molar removal. STUDY DESIGN: This double-blind randomized controlled trial included 163 healthy patients undergoing third molar extractions. The study participants were randomly divided into an LLLT and a placebo group. Objective and subjective data sets were obtained from physiologic feedback (heart rate and sweat response) and a questionnaire, respectively...
May 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28689965/ph-and-nir-light-responsive-magnetic-iron-oxide-nanoparticles-for-mitochondria-mediated-apoptotic-cell-death-induced-by-chemo-photothermal-therapy
#20
Yunok Oh, Jae-Young Je, Madhappan Santha Moorthy, Hansoo Seo, Won Ho Cho
Recently, various therapeutic strategies in anticancer drug development are focused to reduce adverse side effects and to enhance the therapeutic efficacy. Mostly, the iron oxide (Fe3O4) nanoparticles have widely been utilized as an efficient drug delivery system towing to their unique properties such as excellent magnetic behavior, considerably low toxicity, easy surface modification and high drug-loading efficacy. In the present study, we synthesized a multifunctional, DMSA coated, water soluble Fe3O4 nanoparticles (Fe3O4@DMSA/DOX) for an effective pH and NIR-light triggered delivery of anticancer drug (DOX) in cancer therapy...
July 6, 2017: International Journal of Pharmaceutics
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