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https://www.readbyqxmd.com/read/27931974/mathematical-modeling-of-atopic-dermatitis-reveals-double-switch-mechanisms-underlying-four-common-disease-phenotypes
#1
Elisa Domínguez-Hüttinger, Panayiotis Christodoulides, Kosuke Miyauchi, Alan D Irvine, Mariko Okada-Hatakeyama, Masato Kubo, Reiko J Tanaka
BACKGROUND: The skin barrier acts as the first line of defense against constant exposure to biological, microbial, physical and chemical environmental stressors. Dynamic interplay between defects in the skin barrier, dysfunctional immune responses, and environmental stressors are major factors in the development of atopic dermatitis (AD). A systems-biology modeling approach can yield significant insights into these complex and dynamic processes through integration of prior biological data...
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27926766/teledermatology-for-the-diagnosis-and-management-of-skin-cancer-a-systematic-review
#2
Anna Finnane, Kathy Dallest, Monika Janda, H Peter Soyer
Importance: As technology becomes more commonplace in dermatological practice, it is essential to continuously review the accuracy of teledermatology devices and services compared with in-person care. The last systematic review was conducted over 5 years ago. Objective: To synthesize and assess the quality of the evidence to address 3 research questions: (1) How accurate is teledermatology for skin cancer diagnosis compared with usual care (face-to-face [FTF] diagnosis)? (2) Does teledermatology save clinician and/or patient time, compared with usual care? (3) What are the enablers and barriers to adoption of teledermatology in clinical practice for the diagnosis of skin cancer? Evidence Review: The review protocol was registered in the PROSPERO database...
December 7, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/27924201/central-line-associated-bloodstream-infections-in-the-intensive-care-unit-importance-of-the-care-bundle
#3
Aynur Atilla, Zahide Doğanay, Hale Kefeli Çelik, Leman Tomak, Özgür Günal, S Sırrı Kılıç
BACKGROUND: The importance and efficacy of a care bundle for preventing central line-associated bloodstream infections (CLABSIs) and infectious complications related to placing a central venous catheter (CVC) in patients in the intensive care unit (ICU). METHODS: A care bundle was implemented from July 2013 to June 2014 in a medical ICU and surgical ICU. Data were divided into three periods: the prior period (July 2012-June 2013), the intervention period (July 2013-June 2014; first and second periods), and the post-intervention period (July 2014-December 2014; third period)...
December 2016: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/27923738/the-protective-effect-of-microbiota-on-s-aureus-skin-colonization-depends-on-the-integrity-of-the-epithelial-barrier
#4
Marc Burian, Katharina Bitschar, Beatrice Dylus, Andreas Peschel, Birgit Schittek
No abstract text is available yet for this article.
December 3, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27918967/nanoencapsulation-an-efficient-and-promising-approach-to-maximize-wound-healing-efficacy-of-curcumin-a-review-of-new-trends-and-state-of-the-art
#5
REVIEW
Zahid Hussain, Hnin Ei Thu, Shiow-Fern Ng, Shahzeb Khan, Haliza Katas
Wound healing is a multifarious and vibrant process of replacing devitalized and damaged cellular structures, leading to restoration of the skin's barrier function, re-establishment of tissue integrity, and maintenance of the internal homeostasis. Curcumin (CUR) and its analogs have gained widespread recognition due to their remarkable anti-inflammatory, anti-infective, anticancer, immunomodulatory, antioxidant, and wound healing activities. However, their pharmaceutical significance is limited due to inherent hydrophobic nature, poor water solubility, low bioavailability, chemical instability, rapid metabolism and short half-life...
November 30, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27914266/skin-integrated-with-perfusable-vascular-channels-on-a-chip
#6
Nobuhito Mori, Yuya Morimoto, Shoji Takeuchi
This paper describes a method for fabricating perfusable vascular channels coated with endothelial cells within a cultured skin-equivalent by fixing it to a culture device connected to an external pump and tubes. A histological analysis showed that vascular channels were constructed in the skin-equivalent, which showed a conventional dermal/epidermal morphology, and the endothelial cells formed tight junctions on the vascular channel wall. The barrier function of the skin-equivalent was also confirmed. Cell distribution analysis indicated that the vascular channels supplied nutrition to the skin-equivalent...
November 27, 2016: Biomaterials
https://www.readbyqxmd.com/read/27913303/an-mtorc1-akt1-cathepsin-h-axis-controls-filaggrin-expression-and-processing-in-skin-a-novel-mechanism-for-skin-barrier-disruption-in-atopic-dermatitis
#7
Aishath S Naeem, Cristina Tommasi, Christian Cole, Stuart J Brown, Yanan Zhu, Benjamin Way, Saffron Ag Willis Owen, Miriam Moffatt, William O Cookson, John I Harper, Di Wl, Sara J Brown, Thomas Reinheckel, Ryan F L O'Shaughnessy
BACKGROUND: Filaggrin, encoded by the FLG gene, is an important component of the skin's barrier to the external environment and genetic defects in FLG strongly associate with Atopic Dermatitis (AD). However, not all AD patients have FLG mutations. OBJECTIVE: We hypothesised that these patients may possess other defects in filaggrin expression and processing, contributing to barrier disruption and AD, and therefore present novel therapeutic targets for this disease...
November 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27910751/recent-advances-in-pharmacotherapeutic-paradigm-of-mild-to-recalcitrant-atopic-dermatitis
#8
Zahid Hussain, Shariza Sahudin, Hnin Ei Thu, Ahmad Nazrun Shuid, Syed Nasir Abbas Bukhari, Endang Kumolosasi
Atopic dermatitis (AD) is a common, chronic skin inflammatory disorder characterized by perivascular infiltration of immunoglobulin E (IgE), T lymphocytes, and mast cells. The key factors responsible for the pathophysiology of this disease are immunological disorders and defects in epidermal barrier properties. Pruritus, intense itching, psychological stress, deprived physical and mental performance, and sleep disturbance are the hallmark features of this dermatological disorder. Preventive interventions such as educational programs, avoidance of allergens, and exclusive care toward the skin could play a partial role in suppressing the symptoms...
2016: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/27907090/forkhead-box-c1-regulates-human-primary-keratinocyte-terminal-differentiation
#9
Lianghua Bin, Liehua Deng, Hengwen Yang, Leqing Zhu, Xiao Wang, Michael G Edwards, Brittany Richers, Donald Y M Leung
The epidermis serves as a critical protective barrier between the internal and external environment of the human body. Its remarkable barrier function is established through the keratinocyte (KC) terminal differentiation program. The transcription factors specifically regulating terminal differentiation remain largely unknown. Using a RNA-sequencing (RNA-seq) profiling approach, we found that forkhead box c 1 (FOXC1) was significantly up-regulated in human normal primary KC during the course of differentiation...
2016: PloS One
https://www.readbyqxmd.com/read/27905610/dendritic-polyglycerol-and-n-isopropylacrylamide-based-thermoresponsive-nanogels-as-smart-carriers-for-controlled-delivery-of-drugs-through-the-hair-follicle
#10
Fitsum Feleke Sahle, Michael Giulbudagian, Julian Bergueiro, Jürgen Lademann, Marcelo Calderón
Nanoparticles with a size of several hundred nanometers can effectively penetrate into the hair follicles and may serve as depots for controlled drug delivery. However, they can neither overcome the hair follicle barrier to reach the viable cells nor release the loaded drug adequately. On the other hand, small drug molecules cannot penetrate deep into the hair follicles. Thus, the most efficient way for drug delivery through the follicular route is to employ nanoparticles that can release the drug close to the target structure upon exposure to some external or internal stimuli...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27904267/application-of-topical-acids-improves-atopic-dermatitis-in-murine-model-by-enhancement-of-skin-barrier-functions-regardless-of-the-origin-of-acids
#11
Noo Ri Lee, Hae-Jin Lee, Na Young Yoon, Donghye Kim, Minyoung Jung, Eung Ho Choi
BACKGROUND: The acidic pH of the stratum corneum (SC) is important for epidermal permeability barrier homeostasis. Acidification of the skin surface has been suggested as a therapeutic strategy for skin disorders such as atopic dermatitis (AD). OBJECTIVE: We performed an animal study to evaluate the usefulness of acidification of SC for inhibition of AD lesions and to find out if the therapeutic effect of vinegar is attributable to its herbal contents, rather than its acidity...
December 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27904185/topical-therapy-in-atopic-dermatitis-in-children
#12
Dharshini Sathishkumar, Celia Moss
Atopic dermatitis (AD) is a common, chronic childhood skin disorder caused by complex genetic, immunological, and environmental interactions. It significantly impairs quality of life for both child and family. Treatment is complex and must be tailored to the individual taking into account personal, social, and emotional factors, as well as disease severity. This review covers the management of AD in children with topical treatments, focusing on: education and empowerment of patients and caregivers, avoidance of trigger factors, repair and maintenance of the skin barrier by correct use of emollients, control of inflammation with topical corticosteroids and calcineurin inhibitors, minimizing infection, and the use of bandages and body suits...
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27904078/effect-of-nerolidol-and-or-levulinic-acid-on-the-thermotropic-behavior-of-lipid-lamellar-structures-in-the-stratum-corneum
#13
Shunichi Utsumi, Tomohiro Nakamura, Yasuko Obata, Noboru Ohta, Kozo Takayama
Permeation enhancers are required to deliver drugs through the skin efficiently and maintain effective blood concentrations. Studies of the barrier function of the stratum corneum using l-menthol, a monocyclic monoterpene widely used in medicines and foods, have revealed an interaction between characteristic intercellular lipid structures in the stratum corneum and permeation enhancers. The variety of permeation enhancers that can be used to contribute to transdermal delivery systems beyond l-menthol is increasing...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27903738/tgf-%C3%AE-controls-the-formation-of-kidney-resident-t-cells-via-promoting-effector-t-cell-extravasation
#14
Chaoyu Ma, Shruti Mishra, Erika L Demel, Yong Liu, Nu Zhang
Tissue-resident memory T (TRM) cells, a population of noncirculating memory T cells, are one of the essential components of immunological memory in both mouse and human. Although CD69(+)CD103(+) TRM cells represent a major TRM cell population in barrier tissues including the mucosal surface and the skin, CD69(+)CD103(-) TRM cells dominate most nonbarrier tissues, such as the kidney. TGF-β is required for the differentiation of CD69(+)CD103(+) TRM cells in barrier tissues. However, the developmental control of CD69(+)CD103(-) TRM cells in nonbarrier tissues remains largely unknown and the involvement of TGF-β signaling is less clear...
November 30, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27903281/improving-the-clinical-management-of-traumatic-brain-injury-through-the-pharmacokinetic-modeling-of-peripheral-blood-biomarkers
#15
Aaron Dadas, Jolewis Washington, Nicola Marchi, Damir Janigro
BACKGROUND: Blood biomarkers of neurovascular damage are used clinically to diagnose the presence severity or absence of neurological diseases, but data interpretation is confounded by a limited understanding of their dependence on variables other than the disease condition itself. These include half-life in blood, molecular weight, and marker-specific biophysical properties, as well as the effects of glomerular filtration, age, gender, and ethnicity. To study these factors, and to provide a method for markers' analyses, we developed a kinetic model that allows the integrated interpretation of these properties...
November 30, 2016: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/27896193/multidisciplinary-approach-to-an-extended-pressure-sore-at-the-lumbosacral-area
#16
Sehoon Yoon, Euicheol Jeong, Hudson Alex Lázaro
A pressure sore wound is often extensive or complicated by local infection involving adjacent soft tissue and bone. In this case, a regional flap after simple debridement is not adequate. Here, we present a case of an extensive pressure sore in the sacral area with deep tissue infection. A 43-year-old female patient with a complicated sore with deep tissue infection had a presacral abscess, an iliopsoas abscess, and an epidural abscess in the lumbar spine. After a multidisciplinary approach performed in stages, the infection had subsided and removal of the devitalized tissue was possible...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27888888/laser-assisted-delivery-to-treat-facial-scars
#17
REVIEW
Jill S Waibel, Ashley Rudnick
Treatment of facial scars is a multispecialty endeavor for optimal patient recovery. One new innovation helping in facial scar treatments are lasers. Fractional laser predictably (tunable) disrupts the barrier of the skin creating deep channels that allow the delivery of drug and cellular materials; this is called laser-assisted drug delivery (LAD). Without exception thus far, LAD has been found to enhance the local uptake of any drug or substance applied to the skin. These zones may be used postoperatively to deliver drugs and other substances to create an enhanced scar therapeutic response to drug or substance applied to the skin...
February 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27886912/infectious-complications-in-atopic-dermatitis
#18
REVIEW
Di Sun, Peck Y Ong
Atopic dermatitis is characterized by the interplay of skin barrier defects with the immune system and skin microbiome that causes patients to be at risk for infectious complications. This article reviews the pathogenesis of atopic dermatitis and the mechanisms through which patients are at risk for infection from bacterial, viral, and fungal pathogens. Although these complications may be managed acutely, prevention of secondary infections depends on a multipronged approach in the maintenance of skin integrity, control of flares, and microbial pathogens...
February 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/27886911/the-role-of-fungi-in-atopic-dermatitis
#19
REVIEW
Martin Glatz, Philipp Bosshard, Peter Schmid-Grendelmeier
There is little doubt that Malassezia spp plays a role in atopic dermatitis because it may interact with the local skin immune responses and barrier function, and sensitization against this skin-colonizing yeast can correlate with disease activity. Also, antifungal therapy shows beneficial effects in some patients. However, the pathogenetic mechanism and mutual interaction between Malassezia spp and atopic dermatitis still remain partly unclear and need further investigation.
February 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/27884131/improvement-of-pressure-ulcer-prevention-care-in-private-for-profit-residential-care-homes-an-action-research-study
#20
Enid Wy Kwong, Maria Sy Hung, Kevin Woo
BACKGROUND: A need exits to develop a protocol for preventing pressure ulcers (PUs) in private for-profit nursing homes in Hong Kong, where the incidence of PUs is relatively high and which have high proportion of non-professional care staff. The implementation of such protocol would involve changes in the practice of care, likely evoking feelings of fear and uncertainty that may become a barrier to staff adherence. We thus adopted the Systems Model of Action Research in this study to manage the process of change for improving PU prevention care and to develop a pressure ulcer prevention protocol for private for-profit nursing homes...
November 25, 2016: BMC Geriatrics
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