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https://www.readbyqxmd.com/read/28531661/investigation-of-the-thermal-hazardous-effect-of-protective-clothing-caused-by-stored-energy-discharge
#1
Jiazhen He, Yehu Lu, Yan Chen, Jun Li
In addition to direct thermal energy from a heating source, a large amount of thermal energy stored in clothing will continuously discharge to skin after exposure. Investigating the thermal hazardous effect of clothing caused by stored energy discharge is crucial for the reliability of thermal protective clothing. In this study several indices were proposed and applied to evaluate the impact of thermal energy discharge on human skin. The heat discharge from different layers of fabric systems was investigated, and the influences of air gaps and applied compression were examined...
May 10, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28531273/phenotypes-of-atopic-dermatitis-depending-on-the-timing-of-onset-and-progression-in-childhood
#2
Caroline Roduit, Remo Frei, Martin Depner, Anne M Karvonen, Harald Renz, Charlotte Braun-Fahrländer, Elisabeth Schmausser-Hechfellner, Juha Pekkanen, Josef Riedler, Jean-Charles Dalphin, Erika von Mutius, Roger Pascal Lauener, Anne Hyvärinen, Pirkka Kirjavainen, Sami Remes, Marjut Roponen, Marie-Laure Dalphin, Vincent Kaulek, Markus Ege, Jon Genuneit, Sabina Illi, Micahel Kabesch, Bianca Schaub, Petra Ina Pfefferle, Gert Doekes
Importance: Atopic dermatitis is an inflammatory, pruritic skin disease that often occurs in early infancy with a chronic course. However, a specific description of subtypes of atopic dermatitis depending on the timing of onset and progression of the disease in childhood is lacking. Objective: To identify different phenotypes of atopic dermatitis using a definition based on symptoms before age 6 years and to determine whether some subtypes are more at risk for developing other allergic diseases...
May 22, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28528342/an-insight-into-the-changes-in-skin-texture-and-properties-following-dietary-intervention-with-a-nutricosmeceutical-containing-a-blend-of-collagen-bioactive-peptides-and-antioxidants
#3
Licia Genovese, Andrea Corbo, Sara Sibilla
BACKGROUND: Skin aging is a multifactorial phenomenon which causes alterations in skin physiological functions and, most visibly, phenotypic changes. In particular, during the aging process, hyaluronic acid, collagen, and elastin fibers undergo structural and functional changes. AIMS: This study aimed to give an insight into the photo-protective benefits and efficacy of an oral liquid nutricosmeceutical containing collagen bioactive peptides and antioxidants to counteract the signs of aging...
May 20, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28527426/malvidin-and-cyanidin-derivatives-from-a%C3%A3-ai-fruit-euterpe-oleracea-mart-counteract-uv-a-induced-oxidative-stress-in-immortalized-fibroblasts
#4
Ganna Petruk, Anna Illiano, Rita Del Giudice, Assunta Raiola, Angela Amoresano, Maria Manuela Rigano, Renata Piccoli, Daria Maria Monti
UV-A radiations are known to induce cellular oxidative stress, leading to premature skin aging. Consumption of açai fruit (Euterpe oleracea Martius) is known to have many health benefits due to its high level of antioxidants. Herein, we analyzed the ability of phenolic compounds extracted from this fruit to attenuate UV-A-induced oxidative stress in immortalized fibroblast. A methanol/water açai extract was fractionated by HPLC and each fraction tested for anti-oxidant stress activity. Immortalized fibroblasts were pre-incubated with açai fractions and then exposed to UV-A radiations...
May 12, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28526097/abundance-of-active-ingredients-in-sea-buckthorn-oil
#5
REVIEW
Aleksandra Zielińska, Izabela Nowak
Vegetable oils are obtained by mechanical extraction or cold pressing of various parts of plants, most often: seeds, fruits, and drupels. Chemically, these oils are compounds of the ester-linked glycerol and higher fatty acids with long aliphatic chain hydrocarbons (min. C14:0). Vegetable oils have a variety of properties, depending on their percentage of saturation. This article describes sea-buckthorn oil, which is extracted from the well characterized fruit and seeds of sea buckthorn. The plant has a large number of active ingredients the properties of which are successfully used in the cosmetic industry and in medicine...
May 19, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28523887/parent-and-child-characteristics-associated-with-child-sunburn-and-sun-protection-among-u-s-hispanics
#6
Ashley K Day, Jerod L Stapleton, Ana M Natale-Pereira, James S Goydos, Elliot J Coups
BACKGROUND/OBJECTIVES: Skin cancer incidence has been increasing in U.S. Hispanics over several decades and the postdiagnosis outcomes are worse for Hispanics than for non-Hispanic whites. Parents are influential in children's health preventive behaviors, but little is known about parental factors associated with children's skin cancer-related behaviors in the U.S. Hispanic population. The present study examined parental and child correlates of skin cancer-related behaviors (sunburns, sunbathing, sun-protective clothing use, and sunscreen use) of children of Hispanic parents...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28523002/humanized-mouse-models-of-staphylococcus-aureus-infection
#7
REVIEW
Dane Parker
Staphylococcus aureus is a successful human pathogen that has adapted itself in response to selection pressure by the human immune system. A commensal of the human skin and nose, it is a leading cause of several conditions: skin and soft tissue infection, pneumonia, septicemia, peritonitis, bacteremia, and endocarditis. Mice have been used extensively in all these conditions to identify virulence factors and host components important for pathogenesis. Although significant effort has gone toward development of an anti-staphylococcal vaccine, antibodies have proven ineffective in preventing infection in humans after successful studies in mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28522813/in-situ-assembly-of-ag-nanoparticles-agnps-on-porous-silkworm-cocoon-based-would-film-enhanced-antimicrobial-and-wound-healing-activity
#8
Kun Yu, Fei Lu, Qing Li, Honglei Chen, Bitao Lu, Jiawei Liu, Zhiquan Li, Fangying Dai, Dayang Wu, Guangqian Lan
Preventing wound infection and retaining an appropriate level of moisture around wounds represent the most critical issues in wound treatment. Towards these ends, special focus has been placed on Bombyx mori cocoons because the protective function of the silkworm cocoon resembles the manner in which the skin protects the human body. We have designed a facile technique to develop a novel silkworm cocoon-based wound film (SCWF) wound dressing utilizing a CaCl2-ethanol-H2O solution. To improve the anti-bacterial performance of SCWF, we have incorporated the ability of silk sericin to act as a reducing agent for the conversion of Ag(+) to Ag, yielding nanoparticles (AgNPs) linked together by peptide bonds of silkworm cocoon wound film (SCWF-AgNPs)...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521317/mechanisms-of-tolerance-induction
#9
Anna Nowak-Węgrzyn, Pantipa Chatchatee
Food allergy results from failure in oral tolerance that usually occurs in infancy or early childhood. Exposure to peanut and hen's egg via the inflamed and disrupted epithelial barrier in children with severe atopic dermatitis is a risk factor for the development of allergy to these foods and supports the hypothesis that epicutaneous exposure in the absence of oral feeding is an important pathway of allergic IgE sensitization in infants. In recent years, the collective evidence has pointed toward the protective effect of an early feeding with peanut and egg in children with eczema, taking advantage of the pathways underlying oral tolerance to counteract epicutaneous exposure...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28520234/bullous-pemphigoid-associated-with-dipeptidyl-peptidase-4-inhibitors-a-report-of-five-cases
#10
Satoshi Yoshiji, Takaaki Murakami, Shin-Ichi Harashima, Rie Ko, Riko Kashima, Daisuke Yabe, Masahito Ogura, Kentaro Doi, Nobuya Inagaki
Bullous pemphigoid (BP) is an autoimmune blistering skin disorder. Recently, BP induced by dipeptidyl peptidase-4 (DPP-4) inhibitors has been a concern. Although DPP-4 inhibitors are commonly used in the Asian population due to their safety and efficacy, BP associated with DPP-4 inhibitors is sometimes seen in clinical settings. Here we report five Japanese cases of BP associated with the agents. In our cases, BP occurred in the elderly by 4 different DPP-4 inhibitors, which showed various clinical manifestations in terms of latency period for BP, sex, glycemic control, and diabetes duration...
May 18, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28519965/micellar-electrokinetic-chromatography-fingerprinting-combined-with-chemometrics-as-an-efficient-strategy-for-evaluating-the-quality-consistency-and-predicting-the-antioxidant-activity-of-lianqiao-baidu-pills
#11
Shuai Chen, Guoxiang Sun, Lanping Yang, Jing Zhang
An approach combining micellar electrokinetic chromatography (MEKC) fingerprinting with chemometrics was developed to evaluate the quality consistency of Lianqiao Baidu pills (LQDBPs), which are a traditional Chinese patent medicine composed of nineteen herbs used mainly to treat skin ulcers, the common cold, rheumatism, herpes, and constipation. The triangle optimization method was employed to choose a satisfactory background electrolyte, with the information index, I, as an objective function for assessing the capillary electrophoresis conditions...
May 18, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28518224/t-helper-1-related-molecules-as-well-as-il-15-are-hyperexpressed-in-the-skin-lesions-of-patients-with-pyoderma-gangrenosum
#12
Emiliano Antiga, Roberto Maglie, Walter Volpi, Beatrice Bianchi, Emilio Berti, Angelo Valerio Marzano, Marzia Caproni
Pyoderma gangrenosum (PG) is a rare, immune-mediated skin disease classified into the group of neutrophilic dermatoses. Whether a number of studies confirmed the central role of innate immunity, only few studies investigated the possible contributing role of acquired immunity. In particular, no reports about Th1 and Th2 cells are available yet. Therefore, 15 patients with PG, 5 with Sweet's syndrome (SS) and 9 skin specimens from healthy controls (HC) were investigated, evaluating the expression of Th1-related markers IL-12, IFN-γ, CXCR3, CCR5, of the Th2 related molecules IL-4, IL-5, IL-13 and CCR3, of the co-stimulatory axis CD40/CD40L, of IL-15 and the NK cell marker CD56 in skin lesions by immunohistochemistry...
May 18, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28516731/alopecia-areata-hyperactivity-of-the-hypothalamic-pituitary-adrenal-axis-is-a-myth
#13
Beata Bergler-Czop, Bartosz Miziołek, Ligia Brzezińska-Wcisło
INTRODUCTION: Psychological stress is known to cause exacerbation of different skin pathologies including alopecia areata (AA). A hyperactivity of the HPA axis in patients affected by AA (AA-patients) was proposed to be a neuroendocrine response to stress. Still little is known about MSH and cortisol production in AA settings. AIM: The aim of the study was to compare trends in a production of melanocyte-stimulating hormone (MSH) and cortisol in patients with AA-patients and healthy controls...
May 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28516569/stat4-expression-and-activation-is-increased-during-mitosis-in-vitro-and-in-vivo-in-skin-and-mucosa-derived-cell-types-implications-in-neoplastic-and-inflammatory-skin-diseases
#14
Caterina Ferreli, Chester Lai, Suzannah August, Yvonne Buggy, Pawan Kumar, Nicola Brownlow, Peter Parker, Peter S Friedmann, Michael Ardern-Jones, Chris Pickard, Eugene Healy
BACKGROUND: The signal transducer and activator of transcription-4 (STAT4/Stat4) is a transcription factor known to convey signals from interleukin-12, interleukin-23, and interferon-alpha/beta to the nucleus, resulting in activation of dendritic cells, T-helper cell differentiation and production of interferon-gamma. OBJECTIVE: To demonstrate a novel role for STAT4 in cell mitosis. RESULTS: Phosphoserine STAT4 (pSerSTAT4) is increased in cells undergoing mitosis, and is distributed throughout the cytoplasm during this stage of the cell cycle whilst phosphotyrosine STAT4 (pTyrSTAT4) is confined to the chromosomal compartment...
May 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28516492/telemedicine-in-dermatology-findings-and-experiences-worldwide-a-systematic-literature-review
#15
REVIEW
L Eissing, A Trettel, M Augustin
Telemedicine has become an important element of health care in many countries and profited from the technological progress of the last two decades. Due to the visual character of the dermatological specialty, teledermatology in particular participated in that development and is becoming a major tool in dermatological consultation. The objective of this article was to identify the use of teledermatology across the world based on published original articles. A systematic literature search of the Medline and Embase databases for eligible publications (predefined inclusion and exclusion criteria) and a cross-validation search were conducted...
May 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28516475/evaluation-of-detection-distance-dependent-reflectance-spectroscopy-for-the-determination-of-the-sun-protection-factor-using-pig-ear-skin
#16
Carina Reble, Ingo Gersonde, Sabine Schanzer, Martina C Meinke, Jürgen Helfmann, Jürgen Lademann
Determination of sun protection factors (SPFs) is currently an invasive method, which is based on erythema formation (phototest). Here we describe an optical setup and measurement methodology for the determination of SPFs based on diffuse reflectance spectroscopy, which measures UV-reflectance spectra at 4 distances from the point of illumination. Due to a high spatial variation of the reflectance data, most likely due to inhomogeneities of the sunscreen distribution, data of 50 measurement positions are averaged...
May 18, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28516411/preparation-of-essential-oil-based-microemulsions-for-improving-the-solubility-ph-stability-photostability-and-skin-permeation-of-quercetin
#17
Xia Lv, Tiantian Liu, Huipeng Ma, Yan Tian, Lei Li, Zhen Li, Meng Gao, Jianbin Zhang, Zeyao Tang
Quercetin can bring many benefits to skin based on its various bioactivities. However, the therapeutic effect of quercetin is limited due to the poor water solubility, pH instability, light instability, and skin permeation. The aim of the present work was applying essential oil-based microemulsions to improve the solubility, pH stability, photostability, and skin permeation of quercetin for topical application. Peppermint oil (PO-ME), clove oil (CO-ME), and rosemary oil (RMO-ME) were selected as model essential oils...
May 17, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28516208/safety-and-efficiency-of-active-immunization-with-detoxified-antigen-against-scorpion-venom-side-effect-evaluation
#18
Nassrine Bachsais, Lila Boussag-Abib, Fatima Laraba-Djebari
OBJECTIVE: The efficiency and safety of vaccine are the most important properties, however, as any medication, it can induce side effects. This prophylactic therapy could be used to prevent the lethal and pathophysiological effects induced after scorpion envenomation. METHODS: In this study, detoxified venom associated to alum adjuvant (V*alum) is used as a vaccine against scorpion venom for immunization of mice. We evaluate the safety and the inflammatory response of this vaccine...
May 17, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28516187/-the-aged-scalp-a-dermato-oncological-focus-point
#19
REVIEW
N Wroblewski, K Wylon, C Ulrich
Non-melanoma skin cancer and its precursor lesions are common diagnoses in dermatological practice, due to rising incidence and prevalence. Diagnosis is often clinical with subsequent histological confirmation. First-choice treatment for invasive carcinomas is complete surgical excision. Other therapeutic options, such as radiation or systemic therapies, should only be considered when excision is impossible. Mostly located on parts of the scalp that are poorly visible and accessible, particularly for elderly patients, these lesions are a challenge for physicians and patients alike...
May 17, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28514510/injury-to-the-infrapatellar-branch-of-the-saphenous-nerve-during-tendon-graft-harvesting-for-knee-ligament-reconstruction-an-ultrasound-simulation-study
#20
Przemysław A Pękala, Ewa Miza, Brandon Michael Henry, Patrick Popieluszko, Marios Loukas, Krzysztof A Tomaszewski
INTRODUCTION: The clinical anatomy of the infrapatellar branch of the saphenous nerve (IPBSN) is of particular importance during operations in the area of the knee, especially when material for anterior cruciate ligament reconstruction is harvested. The nerve can easily be injured during the harvesting procedure, leading to postoperative complications that reduce quality of life. Three different skin incisions are commonly used during hamstring tendon harvesting: horizontal, vertical, and oblique...
May 17, 2017: Clinical Anatomy
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