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https://www.readbyqxmd.com/read/29777506/an-extended-kalman-filter-for-mouse-tracking
#1
Hongjun Choi, Mingi Kim, Onseok Lee
Animal tracking is an important tool for observing behavior, which is useful in various research areas. Animal specimens can be tracked using dynamic models and observation models that require several types of data. Tracking mouse has several barriers due to the physical characteristics of the mouse, their unpredictable movement, and cluttered environments. Therefore, we propose a reliable method that uses a detection stage and a tracking stage to successfully track mouse. The detection stage detects the surface area of the mouse skin, and the tracking stage implements an extended Kalman filter to estimate the state variables of a nonlinear model...
May 19, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29775636/epithelial-proliferation-in-inflammatory-skin-disease-is-regulated-by-ttc7-in-fibroblasts-and-lymphocytes
#2
Ursina Nüesch, Andrea A Mauracher, Lennart Opitz, Benjamin Volkmer, Katarzyna Michalak-Mićka, Jivko Kamarachev, Tom Hartwig, Ernst Reichmann, Burkhard Becher, Stefano Vavassori, Jana Pachlopnik Schmid
BACKGROUND: Mutations in tetratricopeptide repeat domain 7A (TTC7A) and its mouse orthologue Ttc7 result in a multisystemic disease, mostly affecting epithelial barriers and the immune system. Despite successful hematopoietic stem cell transplantation, ongoing progression of gastrointestinal manifestations can be life-threatening in TTC7A-deficient patients. OBJECTIVE: To identify whether TTC7A mutations dysregulate epithelial cells only, or whether a cell-intrinsic defect in lymphocytes or other cells contributes to disease manifestations...
May 15, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29775418/prolonged-activation-of-camp-signaling-leads-to-endothelial-barrier-disruption-via-transcriptional-repression-of-rras
#3
Carole Y Perrot, Junko Sawada, Masanobu Komatsu
The increase in cAMP levels in endothelial cells triggers cellular signaling to alter vascular permeability. It is generally considered that cAMP signaling stabilizes the endothelial barrier function and reduces permeability. However, previous studies have only examined the permeability shortly after cAMP elevation and thus have only investigated acute responses. Because cAMP is a key regulator of gene expression, elevated cAMP may have a delayed but profound impact on the endothelial permeability by altering the expression of the genes that are vital for the vessel wall stability...
May 18, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29774634/study-of-hyperpigmentation-in-human-skin-disorder-using-different-electron-microscopy-techniques
#4
Seulgi Noh, Hyosun Choi, Ji Soo Kim, Il-Hwan Kim, Ji Young Mun
There is a global trend of increase in the demand for three-dimensional electron microscopy with high resolution. The ultrastructural change and related functional studies are necessary to investigate biological phenomena. In this study, currently available 3D reconstruction techniques of electron microscopes (serial block-face scanning electron microscopy and focused ion beam-scanning electron microscopy) were used to investigate hyperpigmentary disorders in human skin. In the basal layer of the epidermis in the human skin, there are melanocytes that produce melanin and keratinocytes that act as a barrier against environmental damage...
May 18, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29770134/comparative-immune-and-stress-related-transcript-response-induced-by-air-exposure-and-vibrio-anguillarum-bacterin-in-rainbow-trout-oncorhynchus-mykiss-and-gilthead-seabream-sparus-aurata-mucosal-surfaces
#5
Ali Reza Khansari, Joan Carles Balasch, Eva Vallejos-Vidal, David Parra, Felipe E Reyes-López, Lluís Tort
Fish have to face various environmental challenges that may compromise the efficacy of the immune response in mucosal surfaces. Since the effect of acute stress on mucosal barriers in fish has still not been fully elucidated, we aimed to compare the short-term mucosal stress and immune transcriptomic responses in a freshwater (rainbow trout, Oncorhynchus mykiss ) and a marine fish (gilthead seabream, Sparus aurata ) to bacterial immersion ( Vibrio anguillarum bacterin vaccine) and air exposure stress in skin, gills, and intestine...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29766488/nanoemulsions-and-dermatological-diseases-contributions-and-therapeutic-advances
#6
REVIEW
Myla Lôbo de Souza, Douglas Dourado Oliveira, Neila de Paula Pereira, Denis Melo Soares
Skin disease is one of the most common human diseases and affects between 30% and 70% of individuals, which requires a lot of attention to their treatments. The delivery of active pharmacological ingredients at the topical level is a challenge because of the difficulties in overcoming the mechanical barrier created by the skin and reaching greater depths, since delivery specificities are decisive for the degree of effectiveness. In this way, the nanoemulsions emerge as a potential system for the incorporation of active substances in the cells and for the controlled release of active principles...
May 15, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29766308/robotic-assisted-laparoscopic-groin-hernia-repair-observational-case-control-study-on-the-operative-time-during-the-learning-curve
#7
Filip Muysoms, Stijn Van Cleven, Iris Kyle-Leinhase, Conrad Ballecer, Archana Ramaswamy
BACKGROUND: Robotic groin hernia repair (r-TAPP) is demonstrating rapid adoption in the US. Barriers in Europe include: low availability of robotic systems to general surgeons, cost of robotic instruments, and the perception of longer operative time. METHODS: Patients undergoing r-TAPP in our start-up period were prospectively entered in the EuraHS database and compared to laparoscopic TAPP (l-TAPP) performed by the same surgeon within the context of two other prospective studies...
May 15, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29765411/skin-derived-stem-cells-for-wound-treatment-using-cultured-epidermal-autografts-clinical-applications-and-challenges
#8
REVIEW
Inga Brockmann, Juliet Ehrenpfordt, Tabea Sturmheit, Matthias Brandenburger, Charli Kruse, Marietta Zille, Dorothee Rose, Johannes Boltze
The human skin fulfills important barrier, sensory, and immune functions-all of which contribute significantly to health and organism integrity. Widespread skin damage requires immediate treatment and coverage because massive skin loss fosters the invasion of pathogens, causes critical fluid loss, and may ultimately lead to death. Since the skin is a highly immunocompetent organ, autologous transplants are the only viable approach to permanently close a widespread skin wound. Despite the development of tissue-saving autologous transplantation techniques such as mesh and Meek grafts, treatment options for extensive skin damage remain severely limited...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29764821/atopic-dermatitis-complicated-by-severe-impetigo-in-a-syrian-refugee-infant
#9
Peter Green, Elizabeth Munn
We present the case of a 3-month-old infant with atopic dermatitis who developed severe impetigo. The child was born to Syrian refugees shortly after they arrived in Canada. The case demonstrates the rapid and nearly complete resolution of dramatic skin findings after a course of hydrocortisone ointment and oral antibiotics with adjuvant measures. For resettled refugees, access to family physicians and local language proficiency are common barriers that negatively impact their health and healthcare. We discuss some aspects of how the healthcare model in one Canadian city addresses these issues in the context of this case...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29762868/candidemia-in-children-epidemiology-prevention-and-management
#10
REVIEW
Elpis Mantadakis, Zoe Dorothea Pana, Theoklis Zaoutis
Candidemia is the leading cause of invasive fungal infections in hospitalized children. The highest rates of candidemia have been recorded in neonates and infants <1 year of age. Candidemia is more frequent in neonates and young infants than in adults, and is associated with better clinical outcomes, but higher inpatient costs. Over the last 10 years, a declining trend has been noted in the incidence of pediatric candidemia in the US and elsewhere due to the hospital-wide implementation of central-line insertion and maintenance bundles that emphasize full sterile barrier precautions, chlorhexidine skin preparation during line insertion, meticulous site and tubing care, and daily discussion of catheter necessity...
May 15, 2018: Mycoses
https://www.readbyqxmd.com/read/29762208/prevalence-of-atopic-dermatitis-and-pattern-of-drug-therapy-in-malaysian-children
#11
Yi-Yeong Goh, Fazlollah Keshavarzi, Yik Ling Chew
BACKGROUND: Atopic dermatitis (AD) is a chronic relapsing, noncontagious skin inflammation characterized by dry skin and itch. Mutation in filaggrin gene leads to defective skin barrier, allowing entry of allergen and eliciting immunological response. OBJECTIVES: The aims of this study were to investigate the prevalence of AD in Malaysian children and to understand the pattern of drug therapy. Such information could be useful to establish the relationship between ethnicity and family history of atopy and the development of associated signs and symptoms...
May 2018: Dermatitis
https://www.readbyqxmd.com/read/29762205/bleach-for-atopic-dermatitis
#12
Melody Maarouf, Vivian Y Shi
Individuals with atopic dermatitis (AD) have used bleach baths to treat superinfections, although their mechanism of action is not well understood. The ClinicalTrials.gov, National Eczema Association, and PubMed databases were searched for studies that investigate the role bleach plays in modulating AD. Fifteen studies were included in this review. Bleach bath improves clinical symptoms of AD and restores surface microbiome by eradicating bacteria, most notably Staphylococcus aureus. Many studies have noted that this antimicrobial effect has reduced the need for topical corticosteroids or topical antibiotics...
May 2018: Dermatitis
https://www.readbyqxmd.com/read/29762071/vla-4-mediated-adhesion-of-melanoma-cells-on-the-blood-brain-barrier-is-the-critical-cue-for-melanoma-cell-intercalation-and-barrier-disruption
#13
Ana B García-Martín, Pascale Zwicky, Thomas Gruber, Christoph Matti, Federica Moalli, Jens V Stein, David Francisco, Gaby Enzmann, Mitchell P Levesque, Ekkehard Hewer, Ruth Lyck
Melanoma is the most aggressive skin cancer in humans. One severe complication is the formation of brain metastasis, which requires extravasation of melanoma cells across the tight blood-brain barrier (BBB). Previously, VLA-4 has been assigned a role for the adhesive interaction of melanoma cells with non-BBB endothelial cells. However, the role of melanoma VLA-4 for breaching the BBB remained unknown. In this study, we used a mouse in vitro BBB model and imaged the shear resistant arrest of melanoma cells on the BBB...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29761483/epithelial-barrier-dysfunctions-in-atopic-dermatitis-a-skin-gut-lung-model-linking-microbiome-alteration-and-immune-dysregulation
#14
REVIEW
T H Zhu, T R Zhu, K A Tran, R K Sivamani, V Y Shi
Atopic dermatitis is a systemic disorder characterized by abnormal barrier function across multiple organ sites. Initial disruption in the skin epidermal barrier permits allergen sensitization and colonization by pathogens. This induces TH 2 inflammatory response and a thymic stromal lymphopoietin mediated pathway that further promotes barrier breakdown at distant sites including the intestinal and respiratory tract. Clinically, atopic dermatitis can progress from skin disease to food allergy, allergic rhinitis, and later asthma, a phenomenon commonly known as the atopic march...
May 15, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29760610/the-structure-and-function-of-the-epidermal-barrier-in-patients-with-atopic-dermatitis-treatment-options-part-two
#15
REVIEW
Jagoda Pelc, Magdalena Czarnecka-Operacz, Zygmunt Adamski
Atopic dermatitis (AD) is a chronic and recurrent disease induced by underlying defects of the epidermal barrier and immunological disorders, typical of atopic diseases. The genetic and immunological mechanisms (outlined in the previous paper) affecting the dysfunction of the barrier are intensified by environmental factors, e.g. airborne and food allergens, infections and stress. For this reason, proper skin care, which prevents further damage and restores the epidermal barrier is of such importance in the field of AD therapy...
April 2018: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29757921/systematic-review-of-advanced-practice-nurses-skin-cancer-detection-knowledge-and-attitudes-clinical-skin-examination-lesion-detection-and-training
#16
Lois J Loescher, Delaney Stratton, Maribeth Slebodnik, Hope Goodman
BACKGROUND AND PURPOSE: Skin cancer is the most common malignancy in the United States; early detection reduces the public health burden. This systematic review updates the state of advanced practice nurses' skin cancer knowledge and attitudes, performance of and barriers to clinical skin examination (CSE), recognition of skin lesions, and related training activities. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement guided a search of eight literature databases that yielded 12 studies from 2010 to 2016...
January 2018: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/29754454/heparinoid-suppresses-der-p-induced-il-1%C3%AE-production-by-inhibiting-erk-and-p38-mapk-pathways-in-keratinocytes
#17
Ryo Utsunomiya, Xiuju Dai, Masamoto Murakami, Hidenori Okazaki, Teruko Tsuda, Hideki Mori, Ken Shiraishi, Mikiko Tohyama, Koji Sayama
Epidermal keratinocytes initiate skin inflammation by activating immune cells. The skin barrier is disrupted in atopic dermatitis (AD) and epidermal keratinocytes can be exposed to environmental stimuli, such as house dust mite (HDM) allergens. We showed previously that HDM allergens activate the NLRP3 inflammasome of keratinocytes, thereby releasing pro-inflammatory cytokines. Heparinoid is an effective moisturizer for atopic dry skin. However, a recent report showed that heparinoid treatment can improve inflammation of lichen planus...
May 13, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29754191/the-unique-molecular-signatures-of-contact-dermatitis-and-implications-for-treatment
#18
REVIEW
Alexandra Leonard, Emma Guttman-Yassky
Irritant contact dermatitis (ICD) and allergic contact dermatitis (ACD) are common skin disorders that are characterized by inflammation, oozing, crusting, and pruritus. Atopic dermatitis (AD) is an inflammatory skin disease characterized by immune and barrier abnormalities and is additionally a risk factor for acquiring ICD and ACD. New work on allergic sensitization to common allergens (e.g., nickel and fragrance) in human skin has shown that different allergens have distinct molecular fingerprinting. For example, nickel promotes strong Th1/Th17 polarization, whereas fragrance allergy causes Th2/Th22 skewing, which is similar to the phenotype of AD...
May 12, 2018: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29753147/occupational-exposure-and-consequent-health-impairments-due-to-potential-incidental-nanoparticles-in-leather-tanneries-an-evidential-appraisal-of-south-asian-developing-countries
#19
REVIEW
Fiza Sarwar, Riffat Naseem Malik, Chung Wai Chow, Khan Alam
The incidental nanoparticles' (INPs) emission at work and the consequent health impairments is a burning issue of occupational toxicology. The present study is a thorough review of available literature marking an assortment of indicators on INPs generation at leather tanneries and measurable occupational ailments. The literature reported evidences unleash a similarity between the mechanisms of leather tannery induced health damages and toxico-kinetics of incidental nanoparticles in human body. The data on physico-chemical characterization of leather tannery surface dust presents presence of stressors like heavy metals, microbes, animal fur and fibers along with organic and inorganic chemicals...
May 9, 2018: Environment International
https://www.readbyqxmd.com/read/29752469/microrna-17-92-cluster-promotes-the-proliferation-and-the-chemokine-production-of-keratinocytes-implication-for-the-pathogenesis-of-psoriasis
#20
Weigang Zhang, Xiuli Yi, Yawen An, Sen Guo, Shuli Li, Pu Song, Yuqian Chang, Shaolong Zhang, Tianwen Gao, Gang Wang, Chunying Li
Keratinocytes are the main epidermal cell type that constitutes the skin barrier against environmental damages, which emphasizes the balance between the growth and the death of keratinocytes in maintaining skin homeostasis. Aberrant proliferation of keratinocytes and the secretion of inflammatory factors from keratinocytes are related to the formation of chronic inflammatory skin diseases like psoriasis. MicroRNA-17-92 (miRNA-17-92 or miR-17-92) is a miRNA cluster that regulates cell growth and immunity, but the role of miR-17-92 cluster in keratinocytes and its relation to skin diseases have not been well investigated...
May 11, 2018: Cell Death & Disease
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