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https://www.readbyqxmd.com/read/28820395/chemokine-c-x-c-motif-ligand-1-cxcl1-and-chemokine-c-x-c-motif-ligand-2-cxcl2-modulate-the-activity-of-trpv1-ib4-cultured-rat-dorsal-root-ganglia-neurons-upon-short-term-and-acute-application
#1
A F Deftu, A Filippi, K Shibsaki, R O Gheorghe, M Chiritoiu, V Ristoiu
CXCL1 and CXCL2 are two chemokines with 78% homology of their sequence. CXCL1 was associated with atopic dermatitis, a highly pruritic skin disease, but it is not clear what is its mechanism of action, while for CXCL2 there are no data about an association with itch sensitivity. CXCL1 and CXCL2 can modulate TRPV1 receptors, which are one of the most important downstream effectors for itch sensitivity, upon short-term (4 h) or long-term (24 h) incubation, but the data are incomplete. Therefore, the aims of this study were to better characterize the short-term effects of CXCL1 and CXCL2 on TRPV1(+)/IB4(+) dorsal root ganglia neurons known to include nociceptor and itch-sensitive neurons, and to obtain new data about the acute application (12 min) of the two chemokines on the same population of neurons...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28819792/validation-of-the-acr-eular-classification-criteria-for-systemic-sclerosis-in-patients-with-early-scleroderma
#2
Farley Carvalho Araújo, Cíntia Zumstein Camargo, Cristiane Kayser
The aim of this study was to validate the 2013 ACR/EULAR classification criteria for systemic sclerosis (SSc) in patients with SSc, including patients with early SSc. Fifty-six consecutive patients with early SSc (2001 LeRoy and Medsger criteria), 122 patients with established SSc (1980 ACR classification criteria), and 141 patients with SSc-like disorders were included in this cross-sectional study. The diagnostic performance of the 2013 ACR/EULAR criteria was compared with the 1980 ACR criteria in several subsets of patients...
August 17, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28817717/short-report-trpv1-polymorphism-1911-a-g-alters-capsaicin-induced-sensory-changes-in-healthy-subjects
#3
Julia Forstenpointner, Matti Förster, Denisa May, Friederike Hofschulte, Ingolf Cascorbi, Gunnar Wasner, Janne Gierthmühlen, Ralf Baron
BACKGROUND: C-fibers express transient receptor potential (TRP) channels. These high-voltage gated channels function as integrators of different physical stresses (e.g. heat, protons, ATP). Additionally channel activation can be induced by capsaicin. Topically applied, capsaicin elicits burning pain, heat and mechanical hyperalgesia and serves as a human surrogate model for pain. It was suggested that the TRPV1-variant rs8065080 (1911A>G) plays a pivotal role in patients with neuropathic pain syndromes...
2017: PloS One
https://www.readbyqxmd.com/read/28816740/the-value-of-direct-immunofluorescence-on-proteinase-digested-formalin-fixed-paraffin-embedded-skin-biopsies
#4
Aida Valencia-Guerrero, April Deng, Karen Dresser, Gail Bouliane, Kristine M Cornejo
Direct immunofluorescence (DIF) on frozen tissue (DIF-F) is the method of choice for the identification of immune deposits present in skin and other tissues. DIF can also be performed on formalin-fixed paraffin-embedded tissue (DIF-P) after antigen retrieval with proteases and has proven to be of value in renal pathology. However, its utility in skin biopsies has not been fully examined. In this study, we performed DIF-P on 60 skin biopsies that comprised of bullous pemphigoid (n = 18), pemphigoid gestationis (n = 1), pemphigus (n = 7), linear IgA disease (n = 7), vasculitis (n = 20), lupus erythematosus (n = 3), and dermatitis herpetiformis (n = 4) cases...
August 9, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28815132/precision-diagnosis-of-melanoma-and-other-skin-lesions-from-digital-images
#5
Abhishek Bhattacharya, Albert Young, Andrew Wong, Simone Stalling, Maria Wei, Dexter Hadley
Melanoma will affect an estimated 73,000 new cases this year and result in 9,000 deaths, yet precise diagnosis remains a serious problem. Without early detection and preventative care, melanoma can quickly spread to become fatal (Stage IV 5-year survival rate is 20-10%) from a once localized skin lesion (Stage IA 5- year survival rate is 97%). There is no biomarker for melanoma in clinical use, and the current diagnostic criteria for skin lesions remains subjective and imprecise. Accurate diagnosis of melanoma relies on a histopathologic gold standard; thus, aggressive excision of melanocytic skin lesions has been the mainstay of treatment...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814768/risk-factors-for-radiation-induced-skin-ulceration-in-percutaneous-coronary-interventions-of-chronic-total-occluded-lesions-a-2-year-observational-study
#6
Chi-Cheng Lai, Kai-Che Wei, Wen-Yee Chen, Guang-Yuan Mar, Wen-Hwa Wang, Chieh-Shan Wu, Ching-Jiunn Tseng, Kuo-Chung Yang, Lee-Wei Chen, Chun-Peng Liu
Relationship between radiation-induced skin ulceration (RSU) and variables in percutaneous coronary interventions (PCI) was rarely reported. RSU is a severe complication in PCIs, especially for chronic total occlusion (CTO) lesions. We investigated the RSUs and their risk factors in patients receiving CTO PCIs over a 2-year period. Data were analyzed using chi-square tests, t-tests and receiver operating characteristic (ROC) curve. Of 238 patients, 11 patients (4.6%) had RSUs all at right upper back. RSUs were significantly associated with use of left anterior oblique (LAO) views (100% vs...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814736/emotions-alter-muscle-proprioceptive-coding-of-movements-in-humans
#7
Rochelle Ackerley, Jean-Marc Aimonetti, Edith Ribot-Ciscar
Emotions can evoke strong reactions that have profound influences, from gross changes in our internal environment to small fluctuations in facial muscles, and reveal our feelings overtly. Muscles contain proprioceptive afferents, informing us about our movements and regulating motor activities. Their firing reflects changes in muscle length, yet their sensitivity can be modified by the fusimotor system, as found in animals. In humans, the sensitivity of muscle afferents is modulated by cognitive processes, such as attention; however, it is unknown if emotional processes can modulate muscle feedback...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814357/association-of-aeroallergen-sensitization-and-atopic-disease-in-the-sonoran-desert
#8
Ryan D Buckley, Tara F Carr
BACKGROUND: Numerous aeroallergens have been associated with the development of asthma, including Alternaria, house-dust mite, and pet dander. Tucson, Arizona, is located in the Sonoran Desert, which has the highest diversity of vegetation of any desert in the world. Given the unique pollen profile in this region, we sought to identify the most common aeroallergens associated with rhinitis and asthma diagnosis in the local adult population. OBJECTIVE: To identify the prevalence of aeroallergen sensitivity in the Tucson adult population and to identify which aeroallergens are associated with a diagnosis of asthma...
September 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28814355/der-p-1-and-der-p-2-specific-immunoglobulin-e-measurement-for-diagnosis-of-dermatophagoides-pteronyssinus-allergy-a-systematic-review-and-meta-analysis
#9
Man Tian, Ying Zhou, Wenxin Zhang, Yubao Cui
BACKGROUND: A clinical history of allergic symptoms and a skin-prick test with house-dust mite crude extracts are standard diagnostic procedures for Dermatophagoides pteronyssinus allergy. Specific immunoglobulin E (IgE) responses to Der p 1 and Der p 2 allergens have been used for the diagnosis of D. pteronyssinus allergy; however, evaluation of the diagnostic performance of Der p 1 and Der p 2 specific IgE (sIgE) produced inconsistent findings. We sought to evaluate the diagnostic accuracy of Der p 1 sIgE and Der p 2 sIgE measurement in the diagnosis of D...
September 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28813601/platinum-decorated-gold-nanoparticles-with-dual-functionalities-for-ultrasensitive-colorimetric-in-vitro-diagnostics
#10
Zhuangqiang Gao, Haihang Ye, Dianyong Tang, Jing Tao, Sanaz Habibi, Adrienne Minerick, Dianping Tang, Xiaohu Xia
Au nanoparticles (AuNPs) as signal reporters have been utilized in colorimetric in vitro diagnostics (IVDs) for decades. Nevertheless, it remains a grand challenge to substantially enhance the detection sensitivity of AuNP-based IVDs as confined by the inherent plasmonics of AuNPs. In this work, we circumvent this confinement by developing unique dual-functional AuNPs that were engineered by coating conventional AuNPs with ultrathin Pt skins of sub-10 atomic layers (i.e., Au@Pt NPs). The Au@Pt NPs retain the plasmonic activity of initial AuNPs while possessing ultrahigh catalytic activity enabled by Pt skins...
August 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28811601/autonomic-versus-perceptual-accounts-for-tactile-hypersensitivity-in-autism-spectrum-disorder
#11
Hiroshi Fukuyama, Shin-Ichiro Kumagaya, Kosuke Asada, Satsuki Ayaya, Masaharu Kato
Tactile atypicality in individuals with autism spectrum disorder (ASD) has harmful effects on their everyday lives including social interactions. However, whether tactile atypicality in ASD reflects perceptual and/or autonomic processes is unknown. Here, we show that adults with ASD have hypersensitivity to tactile stimuli in the autonomic but not perceptual domain. In particular, adults with ASD showed a greater skin conductance response (SCR) to tactile stimuli compared to typically developing (TD) adults, despite an absence of differences in subjective responses...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810679/association-of-endotoxin-and-allergens-with-respiratory-and-skin-symptoms-a-descriptive-study-in-laboratory-animal-workers
#12
Anne Oppliger, Fabio Barresi, Marion Maggi, Peter Schmid-Grendelmeier, Francois Huaux, Philipp Hotz, Holger Dressel
Background: In laboratory animal work, allergens are classically considered to play a prominent role in generation of respiratory and skin symptoms. However, recent development may have changed working conditions and require an updating of preventive measures. Objective: In workers exposed to a range of animals besides laboratory mice and rats the relative role of endotoxin, irritants, and allergens in symptom generation was assessed for updating preventative measures and health surveillance...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28810595/sudoscan-an-effective-tool-for-screening-chronic-kidney-disease-in-patients-with-type-2-diabetes
#13
Fei Mao, Siying Liu, Xiaona Qiao, Hangping Zheng, Qian Xiong, Jie Wen, Shuo Zhang, Zhaoyun Zhang, Hongying Ye, Hongli Shi, Bin Lu, Yiming Li
SUDOSCAN is a non-invasive method of measuring peripheral small fiber and autonomic nerve activity by detection of abnormal sweat gland function through electrochemical skin conductance. It has been reported to be an effective screening tool in early detection of microvascular type 2 diabetes mellitus (T2DM) complications including diabetic neuropathy and nephropathy in recent studies. However, previous studies used estimated glomerular filtration rate (eGFR) as the golden standard, which has a 90% chance of being within 30% of the measured GFR at best...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809990/topical-desoximetasone-0-25-spray-and-its-vehicle-have-little-potential-for-irritation-or-sensitization
#14
Anish Nadkarni, Mohammed D Saleem, Steven R Feldman
<p>BACKGROUND: Topical corticosteroids are the most common dermatologic medications and are available in numerous different vehicles. Adherence is limited by traditional vehicles because they are messy and time consuming to apply. The preferred spray formulations have the advantage of being applied with ease, resulting in improved adherence and subsequently improved psoriasis. One limitation of topical treatments, especially spray vehicles, is the potential for irritation and sensitization.</p> <p>OBJECTIVE: To evaluate the irritation and sensitization potential of topical desoximetasone spray formulation...
August 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28809953/monitoring-health-and-reproductive-status-of-olms-proteus-anguinus-by-ultrasound
#15
Susanne Holtze, Maja Lukač, Ivan Cizelj, Frank Mutschmann, Claudia Anita Szentiks, Dušan Jelić, Robert Hermes, Frank Göritz, Stanton Braude, Thomas Bernd Hildebrandt
The olm (Proteus anguinus) is a troglomorphic, neotenous amphibian with extraordinary life expectancy and unique adaptations that deserve further investigation. A low reproductive rate and habitat decline render it threatened by extinction. Establishing captive populations for maintenance and artificial breeding may one day become crucial to the species. Longitudinal, in-vivo assessment of inner organs is invaluable to our understanding of reproductive physiology, health, and behavior. Using ultrasound, we measured heart rate and assessed health and reproductive status of 13 captive olms at Zagreb Zoo...
2017: PloS One
https://www.readbyqxmd.com/read/28809824/creation-and-transplantation-of-an-adipose-derived-stem-cell-asc-sheet-in-a-diabetic-wound-healing-model
#16
Yuka Kato, Takanori Iwata, Kaoru Washio, Toshiyuki Yoshida, Hozue Kuroda, Shunichi Morikawa, Mariko Hamada, Kazuki Ikura, Nobuyuki Kaibuchi, Masayuki Yamato, Teruo Okano, Yasuko Uchigata
Artificial skin has achieved considerable therapeutic results in clinical practice. However, artificial skin treatments for wounds in diabetic patients with impeded blood flow or with large wounds might be prolonged. Cell-based therapies have appeared as a new technique for the treatment of diabetic ulcers, and cell-sheet engineering has improved the efficacy of cell transplantation. A number of reports have suggested that adipose-derived stem cells (ASCs), a type of mesenchymal stromal cell (MSC), exhibit therapeutic potential due to their relative abundance in adipose tissue and their accessibility for collection when compared to MSCs from other tissues...
August 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28809134/cancer-treatment-experiences-among-survivors-of-childhood-sexual-abuse-a-qualitative-investigation-of-triggers-and-reactions-to-cumulative-trauma
#17
Julie B Schnur, Matthew J Dillon, Rachel E Goldsmith, Guy H Montgomery
OBJECTIVE: Some 25% of women and 8% of men in the United States have experienced childhood sexual abuse (CSA) before the age of 18. For these individuals, healthcare visits and interactions can be retraumatizing due to perceived similarities to past abuse (e.g., pain, undressing, lack of control). However, no prior studies have provided formal qualitative analyses regarding CSA survivors' reactions to cancer treatment. Therefore, our study's objective was to identify key themes pertaining to CSA survivors' cancer treatment experiences...
August 15, 2017: Palliative & Supportive Care
https://www.readbyqxmd.com/read/28809050/versatile-chromatographic-method-for-catechin-determination-in-development-of-topical-formulations-containing-natural-extracts
#18
Ricardo Ferreira-Nunes, Tamara Angelo, Sandra Márcia Mazutti da Silva, Pérola Oliveira Magalhães, Tais Gratieri, Marcílio Sérgio Soares da Cunha-Filho, Guilherme Martins Gelfuso
Catechin is found in several natural sources, as Eugenia dysenterica and Syzygium cumini extracts. Its antioxidant and UV-protective properties suggest a potential use in cosmetic and dermatological formulations. A simple analytical method capable of giving support to experiments performed along the development of topical formulations containing this natural substance (i.e., drug assay, skin permeation and stability studies), however, is still demanded. Thus, this work aimed to develop and validate a selective HPLC method for catechin determination during the development of topical formulations...
August 15, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28808160/incremental-contributions-of-fbaa-and-other-impetigo-associated-surface-proteins-to-fitness-and-virulence-of-a-classical-group-a-streptococcal-skin-strain
#19
Candace N Rouchon, Anhphan T Ly, John P Noto, Feng Luo, Sergio Lizano, Debra E Bessen
Group A streptococci (GAS) are highly prevalent human pathogens whose primary ecological niche is the superficial epithelial layers of the throat and/or skin. Many GAS strains having a strong tendency to cause pharyngitis are distinct from strains that tend to cause impetigo; thus, genetic differences between them may confer host tissue-specific virulence. In this study, the FbaA surface protein gene is found to be present in most skin specialist strains, but largely absent from a genetically-related subset of pharyngitis isolates...
August 14, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28807557/the-role-of-toll-like-receptor-3-in-chronic-contact-hypersensitivity-induced-by-repeated-elicitation
#20
Risa Yasuike, Risa Tamagawa-Mineoka, Mayumi Ueta, Naomi Nakamura, Shigeru Kinoshita, Norito Katoh
BACKGROUND: Accumulating evidence suggests that Toll-like receptor (TLR)-3 signaling is involved in non-infectious immune and inflammatory reactions as well as in viral infections. The skin of patients with atopic dermatitis (AD) is often infected with virus and bacteria, leading to the aggravation of atopic symptoms. These findings suggest TLR3 signaling may be involved in the pathogenesis of AD, but the exact role of TLR3 in AD remains to be defined. OBJECTIVE: The purpose of this study was to investigate the role of TLR3 in chronic contact hypersensitivity reactions induced by repeated elicitation, resembling the features of AD...
August 4, 2017: Journal of Dermatological Science
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