keyword
MENU ▼
Read by QxMD icon Read
search

Light emitting diodes skin

keyword
https://www.readbyqxmd.com/read/28469528/the-antinociceptive-effect-of-light-emitting-diode-irradiation-on-incised-wounds-is-correlated-with-changes-in-cyclooxygenase-2-activity-prostaglandin-e2-and-proinflammatory-cytokines
#1
Yuan-Yi Chia, Chien-Cheng Liu, Guan-Ming Feng, Chia-Chih Alex Tseng, Kuo-Chuan Hung, Chih-Chieh Chen, Ping-Heng Tan
Background. Light-emitting diode (LED) phototherapy has been reported to relieve pain and enhance tissue repair through several mechanisms. However, the analgesic effect of LED on incised wounds has never been examined. Objectives. We examined the analgesic effect of LED therapy on incision pain and the changes in cyclooxygenase 2 (COX-2), prostaglandin E2 (PGE2), and the proinflammatory cytokines interleukin 6 (IL-6), IL-1β, and tumor necrosis factor α (TNF-α). Methods. Rats received LED therapy on incised skin 6 days before incision (L-I group) or 6 days after incision (I-L group) or from 3 days before incision to 3 days after incision (L-I-L group)...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28445880/heating-of-newborn-infants-due-to-blue-light-emitting-diode-fibreoptic-phototherapy-pads
#2
Pei Ling Ng, Tony Carlisle, Marleesa Ly, Scott Adam Morris
BACKGROUND: Surface temperatures of fibreoptic phototherapy pads using a high intensity blue light-emitting diode (LED) light source have not been studied. OBJECTIVES: The aim of this study was to measure the temperature of LED fibreoptic phototherapy pads during phototherapy in a bench-top study, and to determine temperature effects on babies during phototherapy. METHODS: A commercially available LED fibreoptic phototherapy system was tested...
April 27, 2017: Neonatology
https://www.readbyqxmd.com/read/28429598/preliminary-clinical-validation-of-a-differential-correction-method-for-improving-measurement-accuracy-in-noninvasive-measurement-of-blood-glucose-using-near-infrared-spectroscopy
#3
Guang Han, Xuyao Yu, Dandan Xia, Rong Liu, Jin Liu, Kexin Xu
One of the main challenges in the noninvasive sensing of blood glucose by near-infrared (NIR) spectroscopy is the background variations from light source drift, sweating, and temperature change at the human-machine interface. In this paper, a differential correction method based on the spectra from the floating-reference position and measuring position is proposed to eliminate these spectral variations from background interferences. Its effectiveness was validated by in vitro and in vivo experiments in which the diffuse reflectance of intralipid solutions and human skin was collected at the source distances of 0...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28392643/rosacea-subtypes-visually-and-optically-distinct-when-viewed-with-parallel-polarized-imaging-technique
#4
In Hyuk Kwon, Jae Eun Choi, Soo Hong Seo, Young Chul Kye, Hyo Hyun Ahn
BACKGROUND: Parallel-polarized light (PPL) photography evaluates skin characteristics by analyzing light reflections from the skin surface. OBJECTIVE: The aim of this study was to determine the significance of quantitative analysis of PPL images in rosacea patients, and to provide a new objective evaluation method for use in clinical research and practice. METHODS: A total of 49 rosacea patients were enrolled. PPL images using green and white light emitting diodes (LEDs) were taken of the lesion and an adjacent normal area...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28365253/semiconductor-diode-laser-device-adjuvanting-intradermal-vaccine
#5
Yoshifumi Kimizuka, John J Callahan, Zilong Huang, Kaitlyn Morse, Wataru Katagiri, Ayako Shigeta, Roderick Bronson, Shu Takeuchi, Yusuke Shimaoka, Megan P K Chan, Yang Zeng, Binghao Li, Huabiao Chen, Rhea Y Y Tan, Conor Dwyer, Tyler Mulley, Pierre Leblanc, Calum Goudie, Jeffrey Gelfand, Kosuke Tsukada, Timothy Brauns, Mark C Poznansky, David Bean, Satoshi Kashiwagi
A brief exposure of skin to a low-power, non-tissue damaging laser light has been demonstrated to augment immune responses to intradermal vaccination. Both preclinical and clinical studies show that this approach is simple, effective, safe and well tolerated compared to standard chemical or biological adjuvants. Until now, these laser exposures have been performed using a diode-pumped solid-state laser (DPSSL) devices, which are expensive and require labor-intensive maintenance and special training. Development of an inexpensive, easy-to-use and small device would form an important step in translating this technology toward clinical application...
April 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28362084/fluorometric-biosniffer-camera-sniff-cam-for-direct-imaging-of-gaseous-ethanol-in-breath-and-transdermal-vapor
#6
Takahiro Arakawa, Toshiyuki Sato, Kenta Iitani, Koji Toma, Kohji Mitsubayashi
Various volatile organic compounds can be found in human transpiration, breath and body odor. In this paper, a novel two-dimensional fluorometric imaging system, known as a "sniffer-cam" for ethanol vapor released from human breath and palm skin was constructed and validated. This imaging system measures ethanol vapor concentrations as intensities of fluorescence through an enzymatic reaction induced by alcohol dehydrogenase (ADH). The imaging system consisted of multiple ultraviolet light emitting diode (UV-LED) excitation sheet, an ADH enzyme immobilized mesh substrate and a high-sensitive CCD camera...
March 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28342007/the-effect-of-led-on-blood-microcirculation-during-chronic-wound-healing-in-diabetic-and-non-diabetic-patients-a-prospective-double-blind-randomized-study
#7
Igor Frangez, Ksenija Cankar, Helena Ban Frangez, Dragica Maja Smrke
Chronic wounds, especially in diabetic patients, represent a challenging health issue. Since standard treatment protocols often do not provide satisfactory results, additional treatment methods-like phototherapy using low-level light therapy-are being investigated. The aim of our study was to evaluate the effect of phototherapy with light-emitting diodes on chronic wound treatment in diabetic and non-diabetic patients. Since a sufficient blood supply is mandatory for wound healing, the evaluation of microcirculation in the healthy skin at a wound's edge was the main outcome measure...
May 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28243723/photobiomodulation-therapy-for-the-management-of-radiation-induced-dermatitis-a%C3%A2-single-institution-experience-of-adjuvant-radiotherapy-in-breast-cancer-patients-after-breast-conserving-surgery
#8
Iosif Strouthos, Georgios Chatzikonstantinou, Nikolaos Tselis, Dimitra Bon, Efstratios Karagiannis, Eleni Zoga, Konstantinos Ferentinos, Julia Maximenko, Vassiliki Nikolettou-Fischer, Nikolaos Zamboglou
BACKGROUND: Radiation therapy (RT) comprises a key component in the treatment of breast cancer. Radiation-induced skin toxicity is the major adverse event experienced by patients; however, radiodermatitis (RD) prevention and management remains trivial. It is proven that photobiomodulation (PBM) therapy using light-emitting diode (LED) increases wound healing and depicts an anti-inflammatory effect. This single-institute study evaluates the beneficial role of PBM-LED in preventing/reducing RD during breast cancer RT...
February 27, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28216605/an-overview-of-stress-induced-resveratrol-synthesis-in-grapes-perspectives-for-resveratrol-enriched-grape-products
#9
REVIEW
Mohidul Hasan, Hanhong Bae
Resveratrol is the most important stilbene phytoalexin synthesized naturally or induced in plants, as a part of their defense mechanism. Grapes and their derivative products, including juice and wine, are the most important natural sources of resveratrol, consisting of notably higher amounts than other natural sources like peanuts. Consumption of red wine with its presence of resveratrol explained the "French Paradox". Hence, the demand of resveratrol from grapes is increasing. Moreover, as a natural source of resveratrol, grapes became very important in the nutraceutical industry for their benefits to human health...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28195844/the-efficacy-and-safety-of-660-nm-and-411-to-777-nm-light-emitting-devices-for-treating-wrinkles
#10
Chan Hee Nam, Byung Cheol Park, Myung Hwa Kim, Eun Hee Choi, Seung Phil Hong
BACKGROUND: Low-level light therapy (LLLT) using light-emitting diodes (LEDs) is considered to be helpful for skin regeneration and anti-inflammation. OBJECTIVE: To evaluate the efficacy and safety of 2 types of LLLTs using 660 nm-emitting red LEDs and 411 to 777 nm-emitting white LEDs in the treatment of facial wrinkles. MATERIALS AND METHODS: A prospective, randomized, double-blinded, comparative clinical trial involving 52 adult female subjects was performed...
March 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28099202/early-changes-in-facial-profile-following-structured-filler-rhinoplasty-an-anthropometric-analysis-using-a-3-dimensional-imaging-system
#11
Nark Kyoung Rho, Je Young Park, Choon Shik Youn, Soo-Keun Lee, Hei Sung Kim
BACKGROUND: Quantitative measurements are important for objective evaluation of postprocedural outcomes. Three-dimensional (3D) imaging is known as an objective, accurate, and reliable system for quantifying the soft tissue dimensions of the face. OBJECTIVE: To compare the preprocedural and acute postprocedural nasofrontal, nasofacial, nasolabial, and nasomental angles, early changes in the height and length of the nose, and nasal volume using a 3D surface imaging with a light-emitting diode...
February 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28027199/the-combination-of-resveratrol-and-high-fluence-light-emitting-diode-red-light-produces-synergistic-photobotanical-inhibition-of-fibroblast-proliferation-and-collagen-synthesis-a-novel-treatment-for-skin-fibrosis
#12
Andrew Mamalis, Jared Jagdeo
BACKGROUND: Skin fibrosis is a debilitating condition that significantly impacts patient quality of life. Ultraviolet phototherapy is currently used to treat several diseases featuring skin fibrosis. High-fluence light-emitting diode-generated red light (HF-LED-RL) does not cause DNA damage associated with skin cancer, and it is generally regarded as safe, portable, and cost-effective. Early clinical observations suggest that LED-generated light may possess antifibrotic effects, although these findings are largely unexplored...
January 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27910259/safety-efficacy-and-usage-compliance-of-home-use-device-utilizing-rf-and-light-energies-for-treating-periorbital-wrinkles
#13
Michael H Gold, Julie Biron, Liora Levi, Whitney Sensing
BACKGROUND: The aging process is often associated with undesirable effects on facial skin such as skin redundancy, reduction of elasticity, and increased wrinkling. Radiofrequency (RF) and light-emitting diodes (LEDs) are widely used, clinically proven technologies for skin rejuvenation. STUDY OBJECTIVE: This study aimed to evaluate the safety, efficacy, and usage compliance of the home-use device, utilizing RF and LED energies, for self-treatment of periorbital wrinkles and improvement of skin appearance...
March 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27862355/recent-progress-on-stretchable-electronic-devices-with-intrinsically-stretchable-components
#14
Tran Quang Trung, Nae-Eung Lee
Stretchable electronic devices with intrinsically stretchable components have significant inherent advantages, including simple fabrication processes, a high integrity of the stacked layers, and low cost in comparison with stretchable electronic devices based on non-stretchable components. The research in this field has focused on developing new intrinsically stretchable components for conductors, semiconductors, and insulators. New methodologies and fabrication processes have been developed to fabricate stretchable devices with intrinsically stretchable components...
November 14, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27772719/photosensitive-semiconducting-polymer-incorporated-nanofibers-for-promoting-the-regeneration-of-skin-wound
#15
Guorui Jin, Jun Li, Kai Li
Photosensitive semiconducting polymer (SP) combined with light stimulation has shown the capability in promoting the proliferation of human dermal fibroblasts (HDFs). However, the high cytotoxicity of the used SP hindered its further application in bioactive scaffolds. In this contribution, we designed and synthesized a SP, poly (N,N-bis(2-octyldodecyl)-3,6-di(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione-alt-thieno[3,2-b]thiophene) (PDBTT) with low cytotoxicity and strong absorbance in red and near-infrared region (600-1200nm)...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27768753/origin-of-infrared-light-modulation-in-reflectance-mode-photoplethysmography
#16
Igor S Sidorov, Roman V Romashko, Vasily T Koval, Rashid Giniatullin, Alexei A Kamshilin
We recently pointed out the important role of dermis deformation by pulsating arterial pressure in the formation of a photoplethysmographic signal at green light. The aim of this study was to explore the role of this novel finding in near-infrared (NIR) light. A light-emitting diode (LED)-based imaging photoplethysmography (IPPG) system was used to detect spatial distribution of blood pulsations under frame-to-frame switching green and NIR illumination in the palms of 34 healthy individuals. We observed a significant increase of light-intensity modulation at the heartbeat frequency for both illuminating wavelengths after a palm was contacted with a glass plate...
2016: PloS One
https://www.readbyqxmd.com/read/27761093/finger-shaped-red-light-emitting-diode-to-ascertain-the-depth-of-periungual-wart
#17
Balakrishnan Nirmal
Management of periungual wart is a great challenge, especially when there is subungual extension. The major cause of recurrence of wart is improper clinical assessment of its extent and not directing therapy against the entire wart. This difficulty of ascertaining its extent could be overcome with this finger-shaped red light emitting diode device. Red light in the device penetrates the thick palmar skin and dark constitutive skin colour due to its longer wavelength.
July 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/27743509/remote-vital-parameter-monitoring-in-neonatology-robust-unobtrusive-heart-rate-detection-in-a-realistic-clinical-scenario
#18
Nikolai Blanik, Konrad Heimann, Carina Pereira, Michael Paul, Vladimir Blazek, Boudewijn Venema, Thorsten Orlikowsky, Steffen Leonhardt
Vital parameter monitoring of term and preterm infants during incubator care with self-adhesive electrodes or sensors directly positioned on the skin [e.g. photoplethysmography (PPG) for oxygen saturation or electrocardiography (ECG)] is an essential part of daily routine care in neonatal intensive care units. For various reasons, this kind of monitoring contains a lot of stress for the infants. Therefore, there is a need to measure vital parameters (for instance respiration, temperature, pulse, oxygen saturation) without mechanical or conductive contact...
December 1, 2016: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/27743384/a-low-power-and-miniaturized-electrocardiograph-data-collection-system-with-smart-textile-electrodes-for-monitoring-of-cardiac-function
#19
Ming Dai, Xueliang Xiao, Xin Chen, Haoming Lin, Wanqing Wu, Siping Chen
With the increasing aging population as well as health concerns, chronic heart disease has become the focus of public attention. A comfortable, low-powered, and wearable electrocardiogram (ECG) system for continuously monitoring the elderly's ECG signals over several hours is important for preventing cardiovascular diseases. Traditional ECG monitoring apparatus is often inconvenient to carry, has many electrodes to attach to the chest, and has a high-power consumption. There is also a challenge to design an electrocardiograph that satisfies requirements such as comfort, confinement, and compactness...
December 2016: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/27696509/inhibitory-effect-of-660-nm-led-on-melanin-synthesis-in-in%C3%A2-vitro-and-in%C3%A2-vivo
#20
Chang Taek Oh, Tae-Rin Kwon, Eun Ja Choi, Soon Re Kim, Joon Seok, Seog Kyun Mun, Kwang Ho Yoo, Yeon Shik Choi, Sun Young Choi, Beom Joon Kim
BACKGROUND: Skin hyperpigmentary disorders including postinflammatory hyperpigmentation, melasma, solar lentigines, and conditions like freckles are common. The light-emitting diodes (LEDs) are the latest category of nonthermal and noninvasive phototherapy to be considered in skin pigmentation disorder treatment. PURPOSE: The purpose of this study was to investigate the effects of 660-nm LED on inhibition of melanogenesis. We investigated whether a 660-nm LED affected melanin synthesis in in vitro and in vivo models, and we explored the mechanisms involved...
January 2017: Photodermatology, Photoimmunology & Photomedicine
keyword
keyword
104506
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"