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Skin breakdown

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https://www.readbyqxmd.com/read/28928425/double-deficiency-of-trex2-and-dnase1l2-nucleases-leads-to-accumulation-of-dna-in-lingual-cornifying-keratinocytes-without-activating-inflammatory-responses
#1
Joan Manils, Heinz Fischer, Joan Climent, Eduard Casas, Celia García-Martínez, Jordi Bas, Supawadee Sukseree, Tanya Vavouri, Francisco Ciruela, Josep Maria de Anta, Erwin Tschachler, Leopold Eckhart, Concepció Soler
The cornification of keratinocytes on the surface of skin and oral epithelia is associated with the degradation of nuclear DNA. The endonuclease DNase1L2 and the exonuclease Trex2 are expressed specifically in cornifying keratinocytes. Deletion of DNase1L2 causes retention of nuclear DNA in the tongue epithelium but not in the skin. Here we report that lack of Trex2 results in the accumulation of DNA fragments in the cytoplasm of cornifying lingual keratinocytes and co-deletion of DNase1L2 and Trex2 causes massive accumulation of DNA fragments throughout the cornified layers of the tongue epithelium...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915955/implications-of-bisphosphonate-calcium-ion-depletion-interfering-with-desmosome-epithelial-seal-in-osseointegrated-implants-and-pressure-ulcers
#2
Louis Z G Touyz, Kelvin I Afrashtehfar
Osteoporosis (OP) is a global bone disease prevalent in aging in humans, especially in older women. Bisphosphonates (BPs) are commonly used as therapy for OP as it influences hard and soft tissues calcium metabolism. Mucosal and dermal ulceration with exposure of underlying bone arises from incomplete epithelial recovery due to reduced desmosome formation deriving from lack of available calcium. Pathological situations such as bisphosphonate-related osteonecrosis of the jaw have been described. This hypothesis states other situations which demand intact functional desmosomes such as healing skin over chronic pressure points leading to pressure ulcers (as well-known as bedsores, pressure sores, pressure injuries, decubitus ulcers), and hemidesmosomes such as epithelial seals in contact with titanium surfaces will have a higher prevalence of breakdown among patients being treated with BPs...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28890854/quantitative-comparison-of-the-spreading-and-invasion-of-radial-growth-phase-and-metastatic-melanoma-cells-in-a-three-dimensional-human-skin-equivalent-model
#3
Parvathi Haridas, Jacqui A McGovern, Sean D L McElwain, Matthew J Simpson
BACKGROUND: Standard two-dimensional (2D) cell migration assays do not provide information about vertical invasion processes, which are critical for melanoma progression. We provide information about three-dimensional (3D) melanoma cell migration, proliferation and invasion in a 3D melanoma skin equivalent (MSE) model. In particular, we pay careful attention to compare the structure of the tissues in the MSE with similarly-prepared 3D human skin equivalent (HSE) models. The HSE model is identically prepared to the MSE model except that melanoma cells are omitted...
2017: PeerJ
https://www.readbyqxmd.com/read/28880764/comparing-the-effectiveness-and-wash-off-resistance-of-skin-barrier-creams-a-healthy-volunteer-study
#4
P Dykes, S Bradbury
OBJECTIVE: Preventing moisture damage and breakdown of the skin can be a particular challenge for patients with incontinence. The level of protection offered by various skin protectant products can vary according to the chemical nature of the formulation and can decrease following wash procedures. The aim of this study was to compare five silicone-containing skin barrier creams indicated for use on incontinence-associated dermatitis (IAD) in terms of their resistance to a standardised wash cycle in healthy volunteer subjects...
September 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28854522/an-investigation-on-effects-of-amputee-s-physiological-parameters-on-maximum-pressure-developed-at-the-prosthetic-socket-interface-using-artificial-neural-network
#5
Chitresh Nayak, Amit Singh, Himanshu Chaudhary, Deepak Rajendra Unune
Technological advances in prosthetics have attracted the curiosity of researchers in monitoring design and developments of the sockets to sustain maximum pressure without any soft tissue damage, skin breakdown, and painful sores. Numerous studies have been reported in the area of pressure measurement at the limb/socket interface, though, the relation between amputee's physiological parameters and the pressure developed at the limb/socket interface is still not studied. Therefore, the purpose of this work is to investigate the effects of patient-specific physiological parameters viz...
August 1, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28841606/transabdominal-breast-augmentation-a-review-of-114-cases-performed-over-14-years
#6
Reena A Bhatt, Rajiv J Iyengar, Ercan Karacaoglu, Richard J Zienowicz
BACKGROUND: Abdominoplasty patients are frequently candidates for breast rejuvenation as well. Transabdominal breast augmentation permits insertion of breast implants through the abdominoplasty incision. This combined procedure is preferentially performed in an outpatient setting under monitored anesthesia care and nerve blocks. METHODS: This study was a 14-year retrospective review of a single surgeon's technique and outcomes using transabdominal breast augmentation through a low transverse abdominoplasty incision in select patients requesting simultaneous abdominoplasty and bilateral breast augmentation...
September 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28836281/periodontal-manifestations-of-ehlers-danlos-syndromes-a-systematic-review
#7
Ines Kapferer-Seebacher, Pernilla Lundberg, Franziska Malfait, Johannes Zschocke
AIM: Ehlers-Danlos syndromes (EDS) are a group of inherited connective tissue disorders, characterized by joint hypermobility, skin hyperextensibility, and tissue fragility. Periodontal EDS (pEDS) is a specific EDS subtype caused by heterozygous mutations in complement 1 subunit genes C1R and C1S, with early severe periodontitis as predominant clinical feature. We aimed to systematically assess the spectrum of periodontal abnormalities in all EDS subtypes. MATERIALS AND METHODS: An electronic and manual search was conducted in three databases (Medline, LIVIVO, CENTRAL)...
August 23, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28808084/glycopyrronium-for-severe-drooling-in-children
#8
(no author information available yet)
Drooling of saliva is common in children with physical, intellectual and learning disability, and with poor neuromuscular coordination and oral control.(1) It can cause skin breakdown, damage to clothes and equipment and psychosocial problems for the child and family. For many years, glycopyrronium has been prescribed off-label using the injection solution given orally or tablets crushed and suspended in water, or as unlicensed products that were imported or manufactured as pharmaceutical specials.(2,3) In January 2017, a glycopyrronium oral solution (Sialanar-Proveca Limited) became available in the UK as the first licensed product for the treatment of severe drooling (sialorrhoea) in children and adolescents aged 3 years and older with chronic neurological disorders...
August 2017: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/28807988/high-flow-nasal-cannula-therapy-versus-intermittent-noninvasive-ventilation-in-obese-subjects-after-cardiothoracic-surgery
#9
François Stéphan, Laurence Bérard, Saida Rézaiguia-Delclaux, Priscilla Amaru
BACKGROUND: Obese patients are considered at risk of respiratory failure after cardiothoracic surgery. High-flow nasal cannula has demonstrated its non-inferiority after cardiothoracic surgery compared to noninvasive ventilation (NIV), which is the recommended treatment in obese patients. We hypothesized that NIV was superior to high-flow nasal cannula for preventing or resolving acute respiratory failure after cardiothoracic surgery in this population. METHODS: We performed a post hoc analysis of a randomized, controlled trial...
August 14, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28779991/surgical-management-of-adult-acquired-buried-penis-escutcheonectomy-scrotectomy-and-penile-split-thickness-skin-graft
#10
Thomas W Fuller, Katherine Theisen, Paul Rusilko
OBJECTIVE: To demonstrate the surgical management of adult acquired buried penis (AABP). Affected patients have poor sexual function, urinary dribbling with subsequent skin breakdown, mood disturbance, lichen sclerosus with subsequent urethral stricture, and poor quality of life. Previous efforts have described limited repairs including an isolated resection of the escutcheon, which unfortunately often leads to reburying. We present a more extensive surgical repair including escutcheonectomy, scrotoplasty, and penile split-thickness skin graft (STSG) to provide a durable definitive repair...
July 6, 2017: Urology
https://www.readbyqxmd.com/read/28770671/marine-algae-as-attractive-source-to-skin-care
#11
Jean-Yves Berthon, Rachida Nachat-Kappes, Mathieu Bey, Jean-Paul Cadoret, Isabelle Renimel, Edith Filaire
As the largest organ in the human body, the skin has multiple functions of which one of the most important is the protection against various harmful stressors. The keratinised stratified epidermis and an underlying thick layer of collagen-rich dermal connective tissues are important components of the skin. The environmental stressors such as ultraviolet radiation (UVR) and pollution increase the levels of reactive oxygen species (ROS), contributing to clinical manifestations such as wrinkle formation and skin aging...
June 2017: Free Radical Research
https://www.readbyqxmd.com/read/28762881/porcine-ischemic-wound-healing-model-for-preclinical-testing-of-degradable-biomaterials
#12
Prarthana Patil, John R Martin, Samantha M Sarett, Alonda C Pollins, Nancy L Cardwell, Jeffrey M Davidson, Scott Guelcher, Lillian Nanney, Craig Duvall
Impaired wound healing that mimics chronic human skin pathologies is difficult to achieve in current animal models, hindering testing and development of new therapeutic biomaterials that promote wound healing. Here we describe a refinement and simplification of the porcine ischemic wound model that increases the size and number of experimental sites per animal. By comparing three flap geometries, we adopted a superior configuration (15 cm x 10 cm) that enabled testing of twenty 1 cm<sup>2</sup> square wounds in each animal: 8 total ischemic wounds within 4 bipedicle flaps and 12 non-ischemic wounds...
August 1, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28736002/high-flow-nasal-cannula-versus-noninvasive-ventilation-for-treatment-of-acute-hypoxemic-respiratory-failure-in-renal-transplant-recipients
#13
G Tu, H He, K Yin, M Ju, Y Zheng, D Zhu, Z Luo
OBJECTIVE: This study aimed to evaluate the outcomes of high-flow nasal cannula (HFNC) oxygen therapy compared with noninvasive ventilation (NIV) for the treatment of acute hypoxemic respiratory failure in renal transplant recipients. METHODS: Data were retrospectively collected from a tertiary intensive care unit (ICU) from July 1, 2011, to September 31, 2015. All renal recipients who had acute respiratory failure at that period of time were classified into the HFNC or NIV group depending on the initial form of respiratory support...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28719546/fracture-table-application-for-pediatric-femur-fractures-incidence-and-risk-factors-associated-with-adverse-outcomes
#14
Brian A Kelly, Manahil Naqvi, Emily S Rademacher, Patricia E Miller, Daniel J Hedequist, Michael P Glotzbecker, Travis H Matheney, Benjamin J Shore
BACKGROUND: Flexible elastic nails, submuscular plating, and rigid locked intramedullary nails are common methods of fixation for pediatric femur fractures (PFF) in which the fracture table is used to aid reduction. Little is known about complications associated with fracture table application in PFF. The purpose of this study was to determine the incidence and risk factors associated with adverse outcomes related to fracture table application for the treatment of PFF. METHODS: A retrospective chart review of all children (younger than 18 y) treated for a femur fracture with the use of the fracture table between 2004 and 2015 at a single tertiary pediatric hospital was performed...
July 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28719403/passive-transcutaneous-bone-conduction-hearing-implants-a-systematic-review
#15
Timothy Cooper, Brendan McDonald, Allan Ho
OBJECTIVE: To systematically review the literature on currently available passive transcutaneous bone conduction hearing implants (pTCBI) with regard to complications, audiological outcomes, and quality-of-life scores. DATA SOURCES: MEDLINE, EMBASE, Scopus, and Cochrane Library. STUDY SELECTION: All identified English-language articles reporting on the implantation of currently available pTCBI's and their complications. Both pediatric and adult patients were included...
October 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28709564/current-and-emerging-concepts-in-atopic-dermatitis-pathogenesis
#16
Marguerite Sullivan, Nanette B Silverberg
Atopic dermatitis is a common skin disorder with a complex, evolving pathogenesis. Research on the pathogenesis has shifted from focusing primarily on generalized immune system abnormalities in T helper 1/T helper 2 (Th1/Th2) activity to more targeted immune and skin barrier abnormalities contributing to the overall phenotype. Specific signaling pathways recently implicated in atopic dermatitis include production of interleukin (IL) 4 and IL-13, which promote immunoglobulin E production, Th17 and Th22 cells, and production of cytokines...
July 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28703365/phototherapy-in-systemic-sclerosis-review
#17
REVIEW
Suteeraporn Chaowattanapanit, Charoen Choonhakarn, Chingching Foocharoen, Narachai Julanon
Systemic scleroderma-also known as systemic sclerosis (SSc)-is a chronic systemic connective tissue disease characterized by collagen deposition in cutaneous and internal organs, leading to skin sclerosis and multiple organ fibrosis. The pathogenesis is complex and remains poorly understood. Treatment is based on organ involvement and requires a multidisciplinary approach. Skin sclerosis can cause disability, leading to decreasing quality of life. Various systemic antifibrotic therapies have been used; however, most have unsatisfactory results...
July 13, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28698756/treatment-of-decubitis-ulcer-stage-iv-in-the-patient-with-polytrauma-and-vertical-share-pelvic-fracture-diagnosed-entherocollitis-and-deep-wound-infection-with-clostridium-difficile-with-combined-negative-pressure-wound-therapy-npwt-and-faecal-management-system
#18
Slavcho Stojmenski, Igor Merdzanovski, Andrej Gavrilovski, Sofija Pejkova, Gjorge Dzokic, Smilja Tudzarova
AIM: The aim of this paper was to present a case with the successful treatment of decubitis ulcer stage IV in the patient with polytrauma and vertical share pelvic fracture and diagnosed entherocollitis combined with deep wound infection with Clostridium difficile treated with combined Negative Pressure Wound Therapy (NPWT) and faecal management system. CASE REPORT: Patient D.S.1967 treated on Traumatology Clinic after tentamen suicide on 9.2.2015 with diagnosis: brain contusion; contusion of thoracal space; vertical share pelvic fracture; open fracture type II of the right calcaneus; fracture of the left calcaneus; fracture on the typical place of the left radius; fracture of the right radius with dislocation...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28695413/-process-disturbances-and-improvements-of-wound-healing
#19
S Trainotti, M Scheithauer
Skin damage induces the wound healing process which leads to primary or secondary healing in three sequential, partially overlapping phases, due to interaction among different cells and secretion of pro- and anti-inflammatory mediators. The subtle equilibrium among repair and breakdown can be disturbed by different local and systemic factors causing impairment or even stagnancy of a phase with the effect of chronic wounds or deficient healing. Various surgical and nonsurgical instruments can be used to promote disturbed towards physiologic healing and restore the integrity of the organism's protective layer...
July 10, 2017: HNO
https://www.readbyqxmd.com/read/28687935/update-of-ablative-fractionated-lasers-to-enhance-cutaneous-topical-drug-delivery
#20
REVIEW
Jill S Waibel, Ashley Rudnick, Deborah R Shagalov, Danielle M Nicolazzo
Ablative fractional lasers (AFXL) enhance uptake of therapeutics and this newly emerging field is called laser-assisted drug delivery (LAD). This new science has emerged over the past decade and is finding its way into clinical practice. LAD is poised to change how medicine delivers drugs. Topical and systemic application of pharmaceutical agents for therapeutic effect is an integral part of medicine. With topical therapy, the stratum corneum barrier of the skin impairs the ability of drugs to enter the body...
July 7, 2017: Advances in Therapy
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