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https://www.readbyqxmd.com/read/28528395/enhancing-hair-growth-in-male-androgenetic-alopecia-by-a-combination-of-fractional-co2-laser-therapy-and-hair-growth-factors
#1
Yue Huang, Fenglin Zhuo, Linfeng Li
Laser therapy and growth factors have been used as alternative treatments for male androgenetic alopecia (MAA). The aim of this study is to determine the efficacy and safety of hair growth factors alone or combined with ablative carbon dioxide (CO2) fractional laser therapy in MAA. Twenty-eight men were enrolled in this randomized half-split study based on a left-head to right-head pattern. Fractional CO2 laser treatment was unilaterally performed; hair growth factors were bilaterally applied. Six sessions with 2-week intervals were performed...
May 21, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28523400/long-term-effect-of-thermoablative-fractional-co2-laser-treatment-as-a-novel-approach-to-urinary-incontinence-management-in-women-with-genitourinary-syndrome-of-menopause
#2
Pablo González Isaza, Kinga Jaguszewska, Jose Luis Cardona, Mariusz Lukaszuk
INTRODUCTION AND HYPOTHESIS: The aim of this study was to evaluate the long-term effect of thermoablative fractional CO2 laser (TACO2L) as an alternative treatment for early stages of stress urinary incontinence (SUI) in postmenopausal women with genitourinary syndrome of menopause. METHODS: A total of 161 postmenopausal patients (age 53.38 ± 5.1 years, range 45-65 years) with a clinical diagnosis of mild SUI were prospectively enrolled in the study. Patients received one treatment with TACO2L every 30-45 days, each treatment comprising four sessions, followed in all patients by a yearly treatment session at 12, 24 and 36 months...
May 18, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28521539/jackets-off-the-impact-of-laser-fiber-stripping-on-power-output-and-stone-degradation
#3
Cayde Ritchie, Patrick Yang, Brandon Peplinski, Mohamed Keheila, Salim Cheriyan, Samuel R Abourbih, Wayne Kelln, D Duane Baldwin
PURPOSE: To investigate the effect of laser fiber stripping on stone fragmentation and laser fiber power output. MATERIALS & METHODS: In a benchtop simulation of laser lithotripsy, 20 BegoStone phantoms were positioned within a ureteral model and irradiated for 10 minutes at 8 Hz and 0.8 J. A freshly cleaved 365 μm laser fiber was used for all trials, with half of the fibers also undergoing stripping. Power output was measured at one-minute intervals, beginning with an initial pre-lithotripsy recording at zero minutes...
May 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28517926/laser-induced-population-inversion-in-rhodamine-6g-for-lysozyme-oligomers-detection
#4
Piotr Hanczyc, Lech Sznitko
Fluorescence spectroscopy is a common method for detecting amyloid fibrils where organic fluorophores are used as markers that exhibit increase of the quantum yield upon binding. However, most of the dyes exhibit enhanced emission only when bound to mature fibrils and significantly weaker signals are obtained in presence of amyloid oligomers. In the concept of population inversion, laser is used as an excitation source in order to keep the major fraction of molecules in the excited state to create the pathways for stimulated emission occurrence...
May 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/28512669/combined-fractional-treatment-of-acne-scars-involving-non-ablative-1-550-nm-erbium-glass-laser-and-micro-needling-radiofrequency-a-16-week-prospective-randomized-split-face-study
#5
Hyuck Hoon Kwon, Hae Young Park, Sun Chul Choi, Youin Bae, Chanhee Kang, Jae Yoon Jung, Gyeong-Hun Park
An optimized therapeutic regimen involving a non-ablative fractionated laser or radiofrequency therapy for acne scars has not yet been established. To evaluate whether the combination of a non-ablative fractional laser (NAF) and fractional micro-needling radiofrequency (FMR) has clinical advantages for the treatment of atrophic acne scars compared with NAF alone, a 16-week prospective, randomized split-face study was performed. Each facial side of a patient was treated with 3 sessions of either NAF with FMR or NAF alone, with a 4-week interval between each session...
May 17, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28505579/effect-of-lupinus-albus-l-root-activities-on-as-and-cu-mobility-after-addition-of-iron-based-soil-amendments
#6
Teresa Fresno, Jesús M Peñalosa, Jakob Santner, Markus Puschenreiter, Eduardo Moreno-Jiménez
Arsenic and Cu mobility was investigated in the rhizosphere of Lupinus albus L. grown in an iron-amended contaminated soil. White lupin was grown in rhizobags in contaminated soil either left untreated or amended with iron sulphate plus lime (Fe + lime) or biochar (Fe + BC). Porewater was monitored in rhizosphere and bulk soil throughout the experiment and the extractable fraction of several elements and As and Cu plant uptake was analysed after 48 days. The distribution of As, Cu, P and Fe in the lupin rhizosphere was evaluated with chemical images obtained by laser ablation-ICP-MS analysis of diffusive gradients in thin films (DGT) gels...
May 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/28504757/absolute-frequency-measurements-of-chf-sub-3-sub-doppler-free-ro-vibrational-transitions-at-8-6%C3%A2-%C3%A2-%C3%AE-m
#7
Alessio Gambetta, Edoardo Vicentini, Yuchen Wang, Nicola Coluccelli, Eugenio Fasci, Livio Gianfrani, Antonio Castrillo, Valentina Di Sarno, Luigi Santamaria, Pasquale Maddaloni, Paolo De Natale, Paolo Laporta, Gianluca Galzerano
We report on absolute measurements of saturated-absorption line-center frequencies of room-temperature trifluoromethane using a quantum cascade laser at 8.6 μm and the frequency modulation spectroscopy method. Absolute calibration of the laser frequency is obtained by direct comparison with a mid-infrared optical frequency comb synthesizer referenced to a radio-frequency Rb standard. Several sub-Doppler transitions falling in the υ<sub>5</sub> vibrational band are investigated at around 1158.9  cm<sup>-1</sup> with a fractional frequency precision of 8...
May 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28503946/fractional-co2-laser-therapy-a-new-challenge-for-vulvovaginal-atrophy-in-postmenopausal-women
#8
G P Siliquini, V Tuninetti, V E Bounous, F Bert, N Biglia
OBJECTIVE: To evaluate the effects of CO2 laser in the treatment of vulvovaginal atrophy (VVA) in postmenopausal women. METHODS: VVA was assessed in 87 postmenopausal women (mean age 58.6 ± 6.9 years) before and after the treatment. The protocol consisted of three monthly treatments and included the treatment of vulva. Subjective measures included VAS (Visual Analog Scale) both for vaginal dryness and dyspareunia; DIVA (Day-by-day Impact of Vaginal Aging); a questionnaire on treatment satisfaction and one about the degree of pain during the procedure...
May 15, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28503691/a-rapidly-prototyped-microfluidic-device-for-size-based-nucleic-acid-fractionation-using-isotachophoresis
#9
C Eid, S S Branda, R J Meagher
We present a novel microfluidic device for size-based nucleic acid (NA) fractionation using isotachophoresis (ITP) and an ionic spacer. Our rapid-prototyped laser-cut plastic device has easily modifiable channel dimensions, can process up to 10 μL of sample, and contains an in-line extraction reservoir for minimally-disruptive manual collection of size-fractionated NAs. We designed custom buffering reservoirs using 1 mL pipette tips to provide high buffering capacity and prevent bubbles from entering the microfluidic channels...
May 15, 2017: Analyst
https://www.readbyqxmd.com/read/28500960/infrared-reflectometry-of-skin-analysis-of-backscattered-light-from-different-skin-layers
#10
Miguel A Pleitez, Otto Hertzberg, Alexander Bauer, Tobias Lieblein, Mathias Glasmacher, Hans Tholl, Werner Mäntele
We have recently reported infrared spectroscopy of human skin in vivo using quantum cascade laser excitation and photoacoustic or photothermal detection for non-invasive glucose measurement . Here, we analyze the IR light diffusely reflected from skin layers for spectral contributions of glucose. Excitation of human skin by an external cavity tunable quantum cascade laser in the spectral region from 1000 to 1245cm(-1), where glucose exhibits a fingerprint absorption, yields reflectance spectra with some contributions from glucose molecules...
May 1, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28500784/non-ablative-fractional-laser-assisted-daylight-photodynamic-therapy-with-topical-methyl-aminolevulinate-for-moderate-to-severe-facial-acne-vulgaris-results-of-a-randomized-and-comparative-study
#11
Tae In Kim, Hye-Jin Ahn, In Hye Kang, Ki-Heon Jeong, Nack In Kim, Min Kyung Shin
BACKGROUND: Photodynamic therapy (PDT) has been reported as an effective alternative treatment for patients with acne. PURPOSE: To evaluate the efficacy and safety of DL-PDT in moderate to severe acne and to compare outcomes with those of laser-assisted daylight photodynamic therapy. METHODS: Patients were randomly assigned to either a DL-PDT group (D group) or a fractional laser-assisted DL-PDT group (F group). The outcomes were assessed by measuring acne lesion counts and severity grade at 4, 8, 12, and 16 weeks after therapy commenced...
May 13, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28498204/asds-guidelines-task-force-consensus-recommendations-regarding-the-safety-of-lasers-dermabrasion-chemical-peels-energy-devices-and-skin-surgery-during-and-after-isotretinoin-use
#12
Abigail Waldman, Diana Bolotin, Kenneth A Arndt, Jeffrey S Dover, Roy G Geronemus, Anne Chapas, Sanjana Iyengar, Suzanne L Kilmer, Andrew C Krakowski, Naomi Lawrence, Heidi B Prather, Thomas E Rohrer, Bethanee J Schlosser, John Y S Kim, Peter R Shumaker, Leah K Spring, Murad Alam
BACKGROUND: Currently, the isotretinoin (13-cis-retinoic acid) package insert contains language advising the discontinuation of isotretinoin for 6 months before performing cosmetic procedures, including waxing, dermabrasion, chemical peels, laser procedures, or incisional and excisional cold-steel surgery. It is common practice to follow this standard because of concerns regarding reports of sporadic adverse events and increased risk of scarring. OBJECTIVE: To develop expert consensus regarding the safety of skin procedures, including resurfacing, energy device treatments, and incisional and excisional procedures, in the setting of concurrent or recent isotretinoin use...
May 10, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28497906/cytokine-profiling-analysis-following-a-non-ablative-fractional-laser-on-rat-skin
#13
Toshitatsu Nogita, Tatsuo Maeda, Tadashi Shimokata, Ryoji Tsuboi
No abstract text is available yet for this article.
February 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28494920/clinical-efficacy-of-intravitreal-aflibercept-versus-panretinal-photocoagulation-for-best-corrected-visual-acuity-in-patients-with-proliferative-diabetic-retinopathy-at-52-weeks-clarity-a-multicentre-single-blinded-randomised-controlled-phase-2b-non-inferiority
#14
Sobha Sivaprasad, A Toby Prevost, Joana C Vasconcelos, Amy Riddell, Caroline Murphy, Joanna Kelly, James Bainbridge, Rhiannon Tudor-Edwards, David Hopkins, Philip Hykin
BACKGROUND: Proliferative diabetic retinopathy is the most common cause of severe sight impairment in people with diabetes. Proliferative diabetic retinopathy has been managed by panretinal laser photocoagulation (PRP) for the past 40 years. We report the 1 year safety and efficacy of intravitreal aflibercept. METHODS: In this phase 2b, single-blind, non-inferiority trial (CLARITY), adults (aged ≥18 years) with type 1 or 2 diabetes and previously untreated or post-laser treated active proliferative diabetic retinopathy were recruited from 22 UK ophthalmic centres...
May 5, 2017: Lancet
https://www.readbyqxmd.com/read/28493276/analytical-characterization-of-the-hydrolysis-of-barley-malt-macromolecules-during-enzymatic-degradation-over-time-using-af4-mals-ri
#15
Heinrich Rübsam, Thomas Becker, Martina Gastl
The changes on the molecular weight distribution (MWD) and particle size distribution (PSD) during hydrolysis of barley malt in isothermal mashing procedures were determined using asymmetrical flow field flow fractionation coupled to multiangle laser light scattering and refractive index (AF4/MALS/RI). Mash/trials were focused on amylolytic starch degradation. Therefore, temperatures (65, 70, and 75 °C) were selected according to α- and β-amylases range of activity. Samples were produced by triplicate, tracking amylolytic processes over time periods from 10 to 90 min in each mash/trial...
May 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28492049/a-review-of-laser-and-light-therapy-in-melasma
#16
REVIEW
M K Trivedi, F C Yang, B K Cho
Melasma is a dysregulation of the homeostatic mechanisms that control skin pigmentation and excess pigment is produced. Traditional treatment approaches with topical medications and chemical peels are commonly used but due to the refractory and recurrent nature of melasma, patients often seek alternative treatment strategies such as laser and light therapy. Several types of laser and light therapy have been studied in the treatment of melasma. Intense pulsed light, low fluence Q-switched lasers, and non-ablative fractionated lasers are the most common lasers and light treatments that are currently performed...
March 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28491859/autophagy-in-kidney-transplants-of-sirolimus-treated-recipients
#17
Sagar Bhayana, Arpita Baisantry, Thomas D Kraemer, Christoph Wrede, Jan Hegermann, Jan-Hinrich Bräsen, Clemens Bockmeyer, Jan Ulrich Becker, Matthias Ochs, Wilfried Gwinner, Hermann Haller, Anette Melk, Roland Schmitt
BACKGROUND: Mammalian target of rapamycin (mTOR) inhibitors are increasingly used as immunosuppressive agents in kidney transplantation. In the experimental setting it has been shown that mTOR inhibitors promote autophagy, but the concept that this might also occur in transplant patients has not been addressed. OBJECTIVES: This study was designed to investigate the association between mTOR inhibition and autophagy in renal transplants under routine clinical conditions...
March 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28490073/the-use-of-high-hydrostatic-pressure-to-generate-folate-enriched-extracts-from-the-granule-fraction-of-hen-s-egg-yolk
#18
Nassim Naderi, Alain Doyen, James D House, Yves Pouliot
The present work characterized the effects of pre-treatments on the protein profile and microstructure of granule fractions from egg yolk. The granule microstructure was studied using confocal laser scanning microscopy (CLSM). The protein profiles of the pre-treated granule and the corresponding plasma fraction were studied using 2D gel electrophoresis techniques. Further, we explored the potential for using high hydrostatic pressure (HHP) to promote disintegration of the granule structure. The CLSM micrographs provided evidence of the substantial disintegration of granules due to HHP (600MPa/5min)...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28489283/inflammatory-responses-matrix-remodeling-and-re-epithelialization-after-fractional-co2-laser-treatment-of-scars
#19
Danielle M DeBruler, Britani N Blackstone, Molly E Baumann, Kevin L McFarland, Brian C Wulff, Traci A Wilgus, J Kevin Bailey, Dorothy M Supp, Heather M Powell
BACKGROUND AND OBJECTIVE: Fractional CO2 laser therapy has been used to improve scar pliability and appearance; however, a variety of treatment protocols have been utilized with varied outcomes. Understanding the relationship between laser power and extent of initial tissue ablation and time frame for remodeling could help determine an optimum power and frequency for laser treatment. The characteristics of initial injury caused by fractional CO2 laser treatment, the rates of dermal remodeling and re-epithelialization, and the extent of inflammation as a function of laser stacking were assessed in this study in a porcine scar model...
May 10, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28485963/high-useful-yield-and-rapid-isotopic-analysis-of-uranium-by-resonance-ionization-mass-spectrometry
#20
Michael R Savina, Brett H Isselhardt, Andrew Kucher, Reto Trappitsch, Bruce V King, David Ruddle, Raja Gopal, Ian D Hutcheon
Useful yields from Resonance Ionization Mass Spectrometry can be extremely high compared to other mass spectrometry techniques, but uranium analysis shows strong matrix effects arising from the tendency of uranium to form strongly bound oxide molecules that do not dissociate appreciably on energetic ion bombardment. We demonstrate a useful yield of 24% for metallic uranium. Modeling the laser ionization and ion transmission processes shows that the high useful yield is attributable to a high ion fraction achieved by resonance ionization...
May 9, 2017: Analytical Chemistry
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