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https://www.readbyqxmd.com/read/27917575/efficacy-and-tolerability-of-a-new-topical-nitric-zinc-preparation-for-difficult-to-treat-warts
#1
Camila K Janniger, Robert A Schwartz
Treating plantar, periungual, and external genital warts can be challenging. A prospective study from four centers in Italy evaluated 37 immunocompetent patients with single or multiple warts and treated each lesion with a nitric-zinc topical solution composed of organic and inorganic acids meant to devitalize tissue and destroy HPV DNA in infected keratinocytes. Thirty of the 37 patients had external genital warts, two had plantar warts, two had palm and finger warts, and three had subungual warts for a total of 55 lesions treated...
December 5, 2016: Dermatologic Therapy
https://www.readbyqxmd.com/read/27913279/a-randomised-clinical-in-situ-study-to-evaluate-the-effects-of-novel-low-abrasivity-anti-sensitivity-dentifrices-on-dentine-wear
#2
J Seong, C Hall, S Young, C Parkinson, E Macdonald, S Bodfel Jones, N X West
OBJECTIVES: To compare the abrasive wear on human dentine in an in situ model associated with use of an experimental low abrasivity anti-sensitivity dentifrice containing 1% alumina and 5% sodium tripolyphosphate (STP) with an experimental ultra-low abrasivity non-alumina 5% STP dentifrice, a higher abrasivity daily-use whitening dentifrice, and water as controls. METHODS: This was a single-centre, single-blind, randomised, split-mouth, four-treatment, two-period, crossover in situ study in 29 healthy subjects...
November 29, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27912751/anti-aging-and-tyrosinase-inhibition-effects-of-cassia-fistula-flower-butanolic-extract
#3
Pornngarm Limtrakul, Supachai Yodkeeree, Pilaiporn Thippraphan, Wanisa Punfa, Jatupol Srisomboon
BACKGROUND: Natural products made from plant sources have been used in a variety of cosmetic applications as a source of nutrition and as a whitening agent. The flowers of Cassia fistula L, family Fabaceae, have been used as a traditional medicine for skin diseases and wound healing and have been reported to possess anti-oxidant properties. The anti-aging effect of C. fistula flower extract on human skin fibroblast was investigated. METHODS: The butanolic extraction of C...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27904077/synthesis-characterization-and-evaluation-of-thiazolidine-derivatives-of-cysteine-for-suppressing-eumelanin-production
#4
Yusuke Amino, Yoshinobu Takino, Megumi Kaneko, Fumie Ookura, Mai Yamamoto, Tatsuki Kashiwagi, Keiji Iwasaki
In the pathway of melanin biosynthesis, cysteine (Cys) is utilized for the synthesis of pheomelanin. Accordingly, Cys is considered to suppress the formation of brown-black eumelanin. Although attempts have been made to utilize Cys and its derivatives as skin-whitening agents, their instability and odor hinders their application as a cosmetic agent. Herein, N-acetyl-2-methylthiazolidine-2,4-dicarboxylic acid ethyl ester (AcCP2Et) was proposed as a candidate for a stable and prolonged-release derivative of Cys to inhibit dopachrome formation after its degradation in melanocytes...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27902540/macular-perivenous-retinal-whitening-and-presumed-retino-ciliary-sparing-in-a-recurrent-central-retinal-vein-occlusion-associated-with-the-antiphospholipid-syndrome-and-cryoglobulinemia
#5
Dov B Sebrow, Jesse J Jung, Jason Horowitz, Jeffrey G Odel, K Bailey Freund
PURPOSE: Macular perivenous retinal whitening results from hypoperfusion-induced ischemia of the middle retina that can occur in central retinal vein occlusion (CRVO). We describe an unusual case of recurrent CRVO with macular perivenous retinal whitening and retino-ciliary venous sparing in the setting of 2 prothrombotic diseases, antiphospholipid syndrome and Type II cryoglobulinemia. METHODS: A 50-year-old man presented with intermittent loss of vision in his right eye related to a recurrent CRVO...
November 29, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27889130/can-the-non-pre-whitening-model-observer-including-aspects-of-the-human-visual-system-predict-human-observer-performance-in-mammography
#6
R W Bouwman, R E van Engen, M J M Broeders, G J den Heeten, D R Dance, K C Young, W J H Veldkamp
PURPOSE: In mammography, images are processed prior to display. Current methodologies based on physical image quality measurements are however not designed for the evaluation of processed images. Model observers (MO) might be suitable for this evaluation. The aim of this study was to investigate whether the non-pre-whitening (NPW) MO can be used to predict human observer performance in mammography-like images by including different aspects of the human visual system (HVS). METHODS: The correlation between human and NPW MO performance has been investigated for the detection of disk shaped objects in simulated white noise (WN) and clustered lumpy backgrounds (CLB), representing quantum noise limited and mammography-like images respectively...
November 23, 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/27884395/adaptive-cultural-transmission-biases-in-children-and-nonhuman-primates
#7
Elizabeth E Price, Lara A Wood, Andrew Whiten
Comparative and evolutionary developmental analyses seek to discover the similarities and differences between humans and non-human species that might illuminate both the evolutionary foundations of our nature that we share with other animals, and the distinctive characteristics that make human development unique. As our closest animal relatives, with whom we last shared common ancestry, non-human primates have been particularly important in this endeavour. Such studies have focused on social learning, traditions, and culture, and have discovered much about the 'how' of social learning, concerned with key underlying processes such as imitation and emulation...
November 21, 2016: Infant Behavior & Development
https://www.readbyqxmd.com/read/27882588/clinical-and-epidemiological-analysis-in-149-cases-of-rhododendrol-induced-leukoderma
#8
Momoko Yoshikawa, Yasuyuki Sumikawa, Tokimasa Hida, Takafumi Kamiya, Kimi Kase, Yasue Ishii-Osai, Junji Kato, Yuji Kan, Shiori Kamiya, Yuki Sato, Toshiharu Yamashita
Rhododendrol-induced leukoderma is an acquired depigmentation that develops mainly at the contact site after repeated use of skin-whitening cosmetics containing rhododendrol. In most cases, cessation of further depigmentation or occurrence of repigmentation is observed after discontinuing the use of cosmetics. However, some patients develop vitiligo vulgaris through the spread of depigmentation into the non-exposed areas. Our study aims to investigate the patient-specific factors that may affect the extent of depigmentation or repigmentation, as well as development of vitiligo vulgaris...
November 24, 2016: Journal of Dermatology
https://www.readbyqxmd.com/read/27881400/loss-of-ucp1-exacerbates-western-diet-induced-glycemic-dysregulation-independent-of-changes-in-body-weight-in-female-mice
#9
Nathan C Winn, Victoria J Vieira-Potter, Michelle L Gastecki, Rebecca J Welly, Rebecca J Scroggins, Terese M Zidon, T'Keaya L Gaines, Makenzie L Woodford, Natalia G Karasseva, Jill A Kanaley, Harold S Sacks, Jaume Padilla
We tested the hypothesis that female mice null for UCP1 would have increased susceptibility to Western diet-induced "whitening" of brown adipose tissue (AT) and glucose intolerance. Six-week old C57BL/6J wild-type (WT) and UCP1 knockout (UCP1(-/-)) mice, housed at 25°C, were randomized to either a control diet (10% kcal from fat) or Western diet (45% kcal from fat and 1% cholesterol) for 28 weeks. Loss of UCP1 had no effect on energy intake, energy expenditure, spontaneous physical activity, weight gain, or visceral white AT mass...
November 23, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27876349/morphological-study-on-the-pressure-ulcer-like-dermal-lesions-formed-in-the-rat-heel-skin-after-transection-of-the-sciatic-nerves
#10
Daijiro Haba, Chie Minami, Miki Miyagawa, Takamitsu Arakawa, Akinori Miki
Due to transection of bilateral sciatic nerves, pressure ulcer-like dermal lesion occurred in the hairy skin covering of the heel skin in almost all rats. In the present study, chronological changes of the rat heel skin after the transection were morphologically and immunohistochemically examined. In the heel skin, redness and swelling began by 3days after the operation, and open wound formed by 17days. At the redness and swelling stage, edema extensively occurred in the dermis. At the thickening stage, the epidermis at the pressed site became transiently thicker, and at the whitening stage, rapidly thinner...
November 19, 2016: Acta Histochemica
https://www.readbyqxmd.com/read/27875125/time-frequency-strategies-for-increasing-high-frequency-oscillation-detectability-in-intracerebral-eeg
#11
Nicolas Roehri, Jean-Marc Lina, John C Mosher, Fabrice Bartolomei, Christian-George Benar
BACKGROUND: High-frequency oscillations (HFOs) are considered to be highly representative of brain tissues capable of producing epileptic seizures. The visual review of HFOs on intracerebral electroencephalography is time consuming and tedious, and it can be improved by time-frequency (TF) analysis. The main issue is that the signal is dominated by lower frequencies that mask the HFOs. Our aim was to flatten (i.e., whiten) the frequency spectrum to enhance the fast oscillations while preserving an optimal signal to noise ratio (SNR)...
December 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27874826/optimization-and-validation-of-a-fast-uplc-method-for-simultaneous-determination-of-hydroquinone-kojic-acid-octinoxate-avobenzone-bha-and-bht
#12
Fanny Galimany-Rovira, Montse Miñarro-Carmona, Pilar Pérez-Lozano, Encarna García-Montoya, Josep R Ticó-Grau, Josep M Suñé-Negre
A previously published HPLC method for the simultaneous determination of six major components (hydroquinone, kojic acid, octinoxate, avobenzone, butylated hydroxyanisole, and butylated hydroxytoluene) in a skin-whitening cream was transferred and optimized to an ultra-performance LC system. Separation was achieved in a ZORBAX SB-Phenyl Rapid-Resolution High Throughput column (2.1 × 100 mm, 1.8 μm), using a mobile phase consisting of water with 0.1% acetic acid and acetonitrile at a flow rate of 0.7 mL/min...
September 29, 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/27873353/adaptively-optimized-combination-aoc-of-phased-array-mr-spectroscopy-data-in-the-presence-of-correlated-noise-compared-with-noise-decorrelated-or-whitened-methods
#13
Minjie Wu, Liang Fang, Charles E Ray, Anand Kumar, Shaolin Yang
PURPOSE: A method for adaptively optimized combination (AOC) of MR spectroscopic data from a coil array was recently introduced. The superior performance of the AOC method is evident when compared with the methods that assume uncorrelated noise between coil elements. However, it is unclear whether the AOC method represents the most optimal combination in the presence of correlated noise, when compared with the noise-decorrelated or whitened methods that specifically tackle the correlated noise between coil elements...
November 21, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27869664/anti-melanogenic-activity-of-gagunin-d-a-highly-oxygenated-diterpenoid-from-the-marine-sponge-phorbas-sp-via-modulating-tyrosinase-expression-and-degradation
#14
Ho Yeon Lee, Eun Jeong Jang, Song Yi Bae, Ju-Eun Jeon, Hyen Joo Park, Jongheon Shin, Sang Kook Lee
Tyrosinase is the rate-limiting enzyme critical for melanin synthesis and controls pigmentation in the skin. The inhibition of tyrosinase is currently the most common approach for the development of skin-whitening cosmetics. Gagunin D (GD), a highly oxygenated diterpenoid isolated from the marine sponge Phorbas sp., has exhibited cytotoxicity toward human leukemia cells. However, the effect of GD on normal cells and the molecular mechanisms remain to be elucidated. In the present study, we identified for the first time the anti-melanogenic activity of GD and its precise underlying mechanisms in mouse melan-a cells...
November 17, 2016: Marine Drugs
https://www.readbyqxmd.com/read/27854332/fractional-co%C3%A2-laser-pretreatment-facilitates-transdermal-delivery-of-two-vitamin-c-derivatives
#15
Chien-Yu Hsiao, Hsin-Ching Sung, Sindy Hu, Yau-Li Huang, Chun-Hsun Huang
BACKGROUND: Topical vitamin C derivatives have been used to treat melasma and used as a skin whitener. The aim of this study was to compare skin histology and permeation of l-ascorbic acid 2-phosphate sesquimagnesium salt (MAP-1) and magnesium l-ascorbic acid-2-phosphate (MAP-2) after fractional CO₂ laser pretreatment. METHODS: The effect of fractional laser treatment on porcine skin was examined by scanning electron microscopy and confocal laser scanning electron microscopy...
November 16, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27851907/the-depigmenting-effect-of-natural-resorcinol-type-polyphenols-kuwanon-o-and-sanggenon-t-from-the-roots-of-morus-australis
#16
Shuting Hu, Zongping Zheng, Feng Chen, Mingfu Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Morus australis, one of the major Morus species growing in East Asia, is rich in phenolic compounds. The extract of M. australis has been used as skin whitening components for a long period. The action mechanisms of its principal constituents are still unclear. This study aims to evaluate the skin lightening effects of phenolic compounds extracted from the root of M. australis in different melanocyte systems and artificial skin models. MATERIALS AND METHODS: The depigmenting effect of resorcinol type polyphenols (RTPs) from the root extract of M...
November 13, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27831721/body-posture-differentially-impacts-on-visual-attention-towards-tool-graspable-and-non-graspable-objects
#17
Ettore Ambrosini, Marcello Costantini
Viewed objects have been shown to afford suitable actions, even in the absence of any intention to act. However, little is known as to whether gaze behavior (i.e., the way we simply look at objects) is sensitive to action afforded by the seen object and how our actual motor possibilities affect this behavior. We recorded participants' eye movements during the observation of tools, graspable and ungraspable objects, while their hands were either freely resting on the table or tied behind their back. The effects of the observed object and hand posture on gaze behavior were measured by comparing the actual fixation distribution with that predicted by 2 widely supported models of visual attention, namely the Graph-Based Visual Saliency and the Adaptive Whitening Salience models...
November 10, 2016: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/27801787/effects-of-ganodermanondiol-a-new-melanogenesis-inhibitor-from-the-medicinal-mushroom-ganoderma-lucidum
#18
Ji-Woong Kim, Hong-Il Kim, Jong-Hyeon Kim, O-Chul Kwon, Eun-Suk Son, Chang-Soo Lee, Young-Jin Park
Ganoderma lucidum, a species of the Basidiomycetes class, has been attracting international attention owing to its wide variety of biological activities and great potential as an ingredient in skin care cosmetics including "skin-whitening" products. However, there is little information available on its inhibitory effect against tyrosinase activity. Therefore, the objectives of this study were to investigate the chemical composition of G. lucidum and its inhibitory effects on melanogenesis. We isolated the active compound from G...
October 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27794379/skin-whitening-and-anti-corrugation-activities-of-glycoprotein-fractions-from-liquid-extracts-of-boiled-sea-cucumber
#19
So Jung Kim, So Yun Park, Sun-Mee Hong, Eun-Hye Kwon, Taek-Kyun Lee
OBJECTIVE: To determine skin whitening and wrinkle improvement efficacy, glycoprotein fractions were extracted from liquid extracts of boiled sea cucumber and their effects on tyrosine and elastase inhibitory activities were assayed. METHODS: Fractions above and below 50 kDa (>50 kDa and <50 kDa) were extracted via a series of steps involving: boiling, filtering, desalting and freeze drying. Cytotoxicity, skin whitening and wrinkle-removing effects of boiled liquid were determined...
October 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27792268/in-office-bleaching-during-orthodontic-treatment
#20
Mauricio Neves Gomes, Hélio Dutra, Alexandre Morais, Ricardo Sgura, André Guaraci Devito-Moraes
OBJECTIVE: To demonstrate that it is possible to pursue teeth whitening treatment protocols during orthodontic treatment with no esthetic loss. CLINICAL CONSIDERATIONS: Many patients undergoing orthodontic treatment desire to have a straight and well aligned dentition, but also whiter teeth. For many years, it was believed that carrying out a whitening treatment with positioned orthodontic brackets in place would result in localized spots on the enamel labial surfaces of teeth...
October 28, 2016: Journal of Esthetic and Restorative Dentistry
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