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https://www.readbyqxmd.com/read/28812164/efficacy-of-fractional-lasers-in-treating-alopecia-a-literature-review
#1
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/28807125/nail-debridement-after-ablative-fractional-laser-treatment-and-occlusive-dressing-with-urea-20-cream-an-alternative-to-nail-extraction
#2
Yu Seok Jung, Ji Hae Lee, Gyong Moon Kim, Jung Min Bae
No abstract text is available yet for this article.
September 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28807121/fractional-carbon-dioxide-laser-in-combination-with-topical-corticosteroid-an-innovative-treatment-for-hypertrophic-lichen-planus
#3
Imran Majid
No abstract text is available yet for this article.
September 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28803363/evaluation-of-nonablative-fractional-laser-treatment-in-scar-reduction
#4
Hilal Gokalp
Fractional lasers have been used for the improvement of scar tissue in the recent years but there has not been extensive research on their impact. The purpose of this study was to evaluate the efficacy of nonablative fractional laser (NAFL) on acne, burn, and surgery/traumatic scar. The scars were also categorized as atrophic, hypertrophic, and keloid, and treatment efficacy was investigated accordingly. This is a retrospective, single-center study. Scar tissues were treated using a nonablative fractional 1550-nm Erbium glass laser in high-energy parameters at 4-week interval for 4-8 sessions...
August 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28798968/stretching-of-surface-tethered-polymers-in-pressure-driven-flow-under-confinement
#5
Tamal Roy, Kai Szuttor, Jens Smiatek, Christian Holm, Steffen Hardt
We study the effect of pressure-driven flow on a single surface-tethered DNA molecule confined between parallel surfaces. The influence of flow and channel parameters as well as the length of the molecules on their extension and orientation is explored. In the experiments the chain conformations are imaged by laser scanning confocal microscopy. We find that the fractional extension of the tethered DNA molecules mainly depends on the wall shear stress, with effects of confinement being very weak. Experiments performed with molecules of different contour length show that the fractional extension is a universal function of the product of the wall shear stress and the contour length, a result that can be obtained from a simple scaling relation...
August 11, 2017: Soft Matter
https://www.readbyqxmd.com/read/28794317/high-resolution-kendrick-mass-defect-analysis-of-poly-ethylene-oxide-based-non-ionic-surfactants-and-their-degradation-products
#6
Thierry Fouquet, Haruo Shimada, Katsuyuki Maeno, Kanako Ito, Yuka Ozeki, Shinya Kitagawa, Hajime Ohtani, Hiroaki Sato
Matrix assisted laser desorption ionization (MALDI) high-resolution mass spectrometry (HRMS) and the recently introduced high-resolution Kendrick mass defect (HRKMD) analysis are combined to thoroughly characterize non-ionic surfactants made of a poly(ethylene oxide) (PEO) core capped by esters of fatty acids. A PEO monostearate surfactant is first analyzed as a proof of principle of the HRKMD analysis conducted with a fraction of EO as the base unit (EO/X with X being an integer) in lieu of EO for a regular KMD analysis...
August 8, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28772952/the-effects-of-relative-humidity-on-the-flowability-and-dispersion-performance-of-lactose-mixtures
#7
Xiang-Yun Lu, Lan Chen, Chuan-Yu Wu, Hak-Kim Chan, Tim Freeman
The flowability and dispersion behavior are two important physicochemical properties of pharmaceutical formulations for dry powder inhalers (DPIs). They are usually affected by the environmental conditions, such as temperature and relative humidity (RH). However, very few studies have been focused on the relationship between the two properties and their dependence on RH during storage. In this research, model pharmaceutical formulations were prepared using mixtures of coarse and fine lactose. The fractions of fines in the mixtures were 0%, 5%, 10%, and 20%, respectively...
May 29, 2017: Materials
https://www.readbyqxmd.com/read/28770400/microablative-fractional-co2-laser-for-the-genitourinary-syndrome-of-menopause-power-of-30-or-40%C3%A2-w
#8
Eleni Pitsouni, Themos Grigoriadis, Matthew Falagas, Angeliki Tsiveleka, Stefano Salvatore, Stavros Athanasiou
This retrospective case-control study aimed to compare 30 versus 40 W power of CO2 laser for the therapy of genitourinary syndrome of menopause (GSM). Postmenopausal women with severe intensity of dyspareunia and dryness were eligible to be included in this study. Primary outcomes were dyspareunia and dryness. Secondary outcomes were itching/burning, dysuria, frequency and urgency, Female Sexual Function Index (FSFI), vaginal maturation value (VMV), and Vaginal Health Index Score (VHIS). One laser therapy was applied every month for 3 months...
August 2, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28769093/determination-of-critical-cooling-rates-in-metallic-glass-forming-alloy-libraries-through-laser-spike-annealing
#9
Punnathat Bordeenithikasem, Jingbei Liu, Sebastian A Kube, Yanglin Li, Tianxing Ma, B Ellen Scanley, Christine C Broadbridge, Joost J Vlassak, Jonathan P Singer, Jan Schroers
The glass forming ability (GFA) of metallic glasses (MGs) is quantified by the critical cooling rate (R C). Despite its key role in MG research, experimental challenges have limited measured R C to a minute fraction of known glass formers. We present a combinatorial approach to directly measure R C for large compositional ranges. This is realized through the use of compositionally-graded alloy libraries, which were photo-thermally heated by scanning laser spike annealing of an absorbing layer, then melted and cooled at various rates...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28763897/-effect-of-alloxan-induced-diabetes-mellitus-on-the-functions-of-bone-marrow-derived-and-circulating-endothelial-progenitor-cells
#10
Q Tan, G P Li, Q S Wang, C H Zheng, S Y Zhang
Objective: To explore whether diabetes mellitus (DM) impairs functions of bone marrow-derived endothelial progenitor cells (BM-EPC) and circulating EPC. Methods: Diabetic model of rabbit was induced by Alloxan injection and the rabbits were then randomly divided into three groups: BM-EPC group, circulating EPC group, and DM group, with six rabbits in each group. Another 6 normal rabbits were enrolled as normal control group as well. 8 weeks later, BM-EPC and circulating EPC from diabetic and healthy rabbits were isolated and cultured...
July 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28763401/randomized-double-blind-placebo-controlled-clinical-trial-for-evaluating-the-efficacy-of-fractional-co2-laser-compared-with-topical-estriol-in-the-treatment-of-vaginal-atrophy-in-postmenopausal-women
#11
Vera L Cruz, Marcelo L Steiner, Luciano M Pompei, Rodolfo Strufaldi, Fernando L Afonso Fonseca, Lucila H Simardi Santiago, Tali Wajsfeld, Cesar E Fernandes
OBJECTIVE: The aim of the study was to evaluate efficacy of fractional CO2 vaginal laser treatment (Laser, L) and compare it to local estrogen therapy (Estriol, E) and the combination of both treatments (Laser + Estriol, LE) in the treatment of vulvovaginal atrophy (VVA). METHODS: A total of 45 postmenopausal women meeting inclusion criteria were randomized in L, E, or LE groups. Assessments at baseline, 8 and 20 weeks, were conducted using Vaginal Health Index (VHI), Visual Analog Scale for VVA symptoms (dyspareunia, dryness, and burning), Female Sexual Function Index, and maturation value (MV) of Meisels...
July 31, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28763045/mzstudio-a-dynamic-digital-canvas-for-user-driven-interrogation-of-mass-spectrometry-data
#12
Scott B Ficarro, William M Alexander, Jarrod A Marto
Although not yet truly 'comprehensive', modern mass spectrometry-based experiments can generate quantitative data for a meaningful fraction of the human proteome. Importantly for large-scale protein expression analysis, robust data pipelines are in place for identification of un-modified peptide sequences and aggregation of these data to protein-level quantification. However, interoperable software tools that enable scientists to computationally explore and document novel hypotheses for peptide sequence, modification status, or fragmentation behavior are not well-developed...
August 1, 2017: Proteomes
https://www.readbyqxmd.com/read/28759461/lasers-for-pelvic-floor-dysfunctions-is-there-evidence
#13
Patrick Lang, Mickey Karram
PURPOSE OF REVIEW: The purpose of this review is to discuss the available energy sources used in the vaginal canal that are currently being promoted for certain pelvic floor conditions and explore the body of peer-reviewed literature supporting their use. RECENT FINDINGS: The majority of research has focused on the use of fractional CO2 laser treatment for genitourinary syndrome of menopause (GSM). Most of these studies are nonrandomized prospective studies, but their data consistently shows an improvement in symptoms without significant side effects...
July 29, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28759289/treatment-of-pseudoxanthoma-elasticum-like-papillary-dermal-elastolysis-with-non-ablative-fractional-resurfacing-laser-resulting-in-clinical-and-histologic-improvement-in-elastin-and-collagen
#14
Kristen Foering, Richard Lawrence Torbeck, Michael P Frank, Nazanin Saedi
OBJECTIVE: Pseudoxanthoma Elasticum-Like Papillary Dermal Elastolysis (PXE-PDE) is a rare skin condition seen predominantly in elderly females. These asymptomatic lesions are brought to the dermatologist's attention due to patient's displeasure in their appearance. We report a case of a 28-year old female with PXE-PDE on the right neck treated with Non-Ablative Fractional Resurfacing (NAFR). CASE: The patient on examination had yellow to skin-colored papules that coalesced into a cobblestone-appearing plaque on her lateral neck...
July 31, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28759274/fractional-carbon-dioxide-laser-for-facial-rejuvenation-a-prospective-study-to-evaluate-the-efficacy-and-the-safety
#15
Basak Yalici-Armagan, Gonca Elcin
BACKGROUND: The aim of this study was to evaluate the efficacy and safety of the fractional ablative carbon dioxide laser for facial rejuvenation. MATERIALS AND METHODS: Twenty-nine female who have the complaint of facial aging were recruited for the study. Participants received a maximum of 3 laser treatment sessions with one-month intervals and were scored using a 5-point scale on 7 categories for facial aging before and after the treatment by the physicians. Self assessments by participants were done at the last month of follow up period and 3 years after the last session...
July 31, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28759110/effects-of-early-combinatorial-treatment-of-autologous-split-thickness-skin-grafts-in-red-duroc-pig-model-using-pulsed-dye-laser-and-fractional-co2-laser
#16
J Kevin Bailey, Britani N Blackstone, Danielle M DeBruler, Jayne Y Kim, Molly E Baumann, Kevin L McFarland, Folasade O Imeokparia, Dorothy M Supp, Heather M Powell
BACKGROUND AND OBJECTIVE: The use of pulsed dye laser (PDL) and fractional CO2 (FX CO2 ) laser therapy to treat and/or prevent scarring following burn injury is becoming more widespread with a number of studies reporting reduction in scar erythema and pruritus following treatment with lasers. While the majority of studies report positive outcomes following PDL or FX CO2 therapy, a number of studies have reported no benefit or worsening of the scar following treatment. The objective of this study was to directly compare the efficacy of PDL, FX CO2 , and PDL + FX CO2 laser therapy in reducing scarring post burn injury and autografting in a standardized animal model...
July 31, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28755402/combination-of-a-2940%C3%A2-nm-er-yag-laser-with-recombinant-bovine-basic-fibroblast-growth-factor-rb-bfgf-and-light-emitting-diode-red-light-led-rl-for-the-treatment-of-striae-alba-a-pilot-study
#17
Jie Shen, Xin-Gang Lu, Jing-Jing Jin, Hong-Wei Wang
BACKGROUND: Striae distensae (SD) are a common dermatologic problem that plagues many people. Although there are many therapeutic modalities have been used to treat SD, effective method has been disappointing for striae Alba. AIMS: To evaluate the clinical and histopathologic efficacy and safety of the 2940-nm erbium yttrium aluminum garnet (Er:YAG) ablative fractional laser (AFL) with recombinant bovine basic fibroblast growth factor (rb-bFGF) and light-emitting diode-red light (LED-RL) for the treatment of striae alba...
July 29, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28754898/forest-understory-trees-can-be-segmented-accurately-within-sufficiently-dense-airborne-laser-scanning-point-clouds
#18
Hamid Hamraz, Marco A Contreras, Jun Zhang
Airborne laser scanning (LiDAR) point clouds over large forested areas can be processed to segment individual trees and subsequently extract tree-level information. Existing segmentation procedures typically detect more than 90% of overstory trees, yet they barely detect 60% of understory trees because of the occlusion effect of higher canopy layers. Although understory trees provide limited financial value, they are an essential component of ecosystem functioning by offering habitat for numerous wildlife species and influencing stand development...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28753088/histologic-analyses-on-the-response-of-the-skin-to-1-927-nm-fractional-thulium-fiber-laser-treatment
#19
In Ho Kwon, Youin Bae, Un-Cheol Yeo, Young Hee Choi, Gyeong-Hun Park
BACKGROUND: The histologic responses to varied parameters of 1,927-nm fractional thulium fiber laser treatment have not yet been sufficiently elucidated. OBJECTIVE: This study sought to evaluate histologic changes immediately after 1,927-nm fractional thulium fiber laser session at various parameters. METHODS: The dorsal skin of Yucatan mini pig was treated with 1,927-nm fractional thulium fiber laser at varied parameters, with or without skin drying...
July 28, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28753078/which-is-more-effective-for-pain-relief-during-fractionated-carbon-dioxide-laser-treatment-emla-cream-or-forced-cold-air-anesthesia
#20
Elif Sari, Bulent Bakar
BACKGROUND AND AIM: The aim of this study was to compare the effectiveness of a eutectic mixture of local anesthetic (EMLA) cream and forced cold air anesthesia (FCAA) on pain control during ablative fractionated carbon dioxide (CO2) laser treatment. METHODS: Fifteen volunteers participated in this prospective, controlled, split-face clinical study. EMLA cream was applied 60 minutes before the laser procedure on half of the face, and FCAA was performed on each subunit of the other half of the face...
July 28, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
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