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Inflammatory skin damage

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https://www.readbyqxmd.com/read/28813557/facial-erosive-pustular-dermatosis-after-cosmetic-resurfacing
#1
Julie E Mervak, Stephanie D Gan, Emily H Smith, Frank Wang
Importance: Erosive pustular dermatosis (EPD) is a rare condition that typically affects actinically damaged skin of the scalp. Characterized by sterile pustules, erosions, and crusts, EPD is difficult to treat and heals slowly. The exact cause of EPD is unknown, although trauma is an inciting factor. Objective: To describe 3 women who presented with prolonged facial erosions after cosmetic resurfacing procedures, specifically fully ablative carbon dioxide laser or medium-depth chemical peel...
August 16, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28806055/selective-release-system-for-antioxidative-and-anti-inflammatory-activities-using-h2o2-responsive-therapeutic-nanoparticles
#2
A Young Kim, Ji Hoon Ha, Soo Nam Park
We developed nanoparticles that were degraded by H2O2, a reactive oxygen species (ROS), to study a drug delivery system that targets damaged skin cells with oxidative stress and inflammation. In this study, tyrosol-incorporated copolyoxalate (TPOX) was synthesized by using 1,4-cyclohexanedimethanol, 4-(2-hydroxyethyl)phenol (tyrosol) and oxalyl chloride (Mw ~8835 Da). In vitro drug release behavior was assessed by loading nile red, a lipophilic fluorescent material such as quercetin, into the TPOX nanoparticles...
August 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28797111/angiogenic-t-cell-expansion-correlates-with-severity-of-peripheral-vascular-damage-in-systemic-sclerosis
#3
Mirko Manetti, Sara Pratesi, Eloisa Romano, Silvia Bellando-Randone, Irene Rosa, Serena Guiducci, Bianca Saveria Fioretto, Lidia Ibba-Manneschi, Enrico Maggi, Marco Matucci-Cerinic
The mechanisms underlying endothelial cell injury and defective vascular repair in systemic sclerosis (SSc) remain unclear. Since the recently discovered angiogenic T cells (Tang) may have an important role in the repair of damaged endothelium, this study aimed to analyze the Tang population in relation to disease-related peripheral vascular features in SSc patients. Tang (CD3+CD31+CXCR4+) were quantified by flow cytometry in peripheral blood samples from 39 SSc patients and 18 healthy controls (HC). Circulating levels of the CXCR4 ligand stromal cell-derived factor (SDF)-1α and proangiogenic factors were assessed in paired serum samples by immunoassay...
2017: PloS One
https://www.readbyqxmd.com/read/28795212/a-review-of-adverse-events-related-to-prostatic-artery-embolization-for-treatment-of-bladder-outlet-obstruction-due-to-bph
#4
Airton Mota Moreira, André Moreira de Assis, Francisco Cesar Carnevale, Alberto Azoubel Antunes, Miguel Srougi, Giovanni Guido Cerri
INTRODUCTION: Minimally invasive procedures have gained great importance among the treatments for benign prostate hyperplasia (BPH) due to their low morbidity. Prostate artery embolization has emerged as a safe and effective alternative for patients with large volume BPH, not suited for surgery. MATERIALS AND METHODS: Low adverse events rates have been reported following prostate artery embolization and may include dysuria, urinary infection, hematuria, hematospermia, acute urinary retention and rectal bleeding...
August 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28773202/anti-inflammatory-immunomodulatory-and-tissue-repair-activity-on-human-keratinocytes-by-green-innovative-nanocomposites
#5
Pierfrancesco Morganti, Alessandra Fusco, Iole Paoletti, Brunella Perfetto, Paola Del Ciotto, Marco Palombo, Angelo Chianese, Adone Baroni, Giovanna Donnarumma
The use of raw materials obtained by waste and processed through innovative industrial methodologies has generated an industry of about a trillion dollars in a short time, and in the near future will provide resources and services for the conservation and sustainable use of natural resources in order to ensure a better and fairer welfare for the human race. The production of nano-fiber chitin non-woven tissue is in accordance with the Organization for Economic Co-operation and Development (OECD) and European Union (EU) bio-economic programs: 100% biodegradable, ecological, and therefore useful in decreasing dependence on fossil fuel resources...
July 22, 2017: Materials
https://www.readbyqxmd.com/read/28771181/ghrelin-therapy-decreases-incidents-of-intracranial-hemorrhage-in-mice-after-whole-body-ionizing-irradiation-combined-with-burn-trauma
#6
Nikolai V Gorbunov, Juliann G Kiang
Nuclear industrial accidents and the detonation of nuclear devices cause a variety of damaging factors which, when their impacts are combined, produce complicated injuries challenging for medical treatment. Thus, trauma following acute ionizing irradiation (IR) can deteriorate the IR-induced secondary reactive metabolic and inflammatory impacts to dose-limiting tissues, such as bone marrow/lymphatic, gastrointestinal tissues, and vascular endothelial tissues, exacerbating the severity of the primary injury and decreasing survival from the exposure...
August 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28754339/interleukin-1-receptor-knockout-mice-develop-epidermal-cysts-and-show-an-altered-innate-immune-response-following-exposure-to-ultraviolet-b-radiation
#7
Nikhil N Kulkarni, Christopher A Adase, Ling-Juan Zhang, Andrew W Borkowski, Fengwu Li, James A Sanford, Daniel J Coleman, Carlos Aguilera, Arup K Indra, Richard L Gallo
In this study, we observed that mice lacking the interleukin 1 receptor (IL1r(-/-)), or deficient in interleukin 1-beta (IL1-β), developed multiple epidermal cysts after chronic ultraviolet B (UVB) exposure. Cysts that developed in IL1r(-/-) mice were characterized by the presence of the hair follicle marker Sox 9, keratins (K10 and K14) and normal melanocyte distribution and retinoid X receptor α (RXR α) expression. The increased incidence of cysts in IL1r(-/-) mice was associated with less skin inflammation as characterized by decreased recruitment of macrophages, and their skin also maintained epidermal barrier function compared to wild-type mice...
July 25, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28752372/the-cutaneous-spectrum-of-lupus-erythematosus
#8
REVIEW
Simone Ribero, Savino Sciascia, Luca Borradori, Dan Lipsker
Systemic lupus erythematosus is a complex autoimmune disease with a wide spectrum of clinical and immunopathological features. Cutaneous and articular manifestations are the most common signs in patients with systemic lupus erythematosus. We here review the pathogenesis and the new classification of cutaneous lupus erythemathosus with a discussion of the significance of the various cutaneous signs. The lesions are classified according to the level of the cellular infiltrate and tissue damage in the epidermis, dermis, and/or subcutis...
July 27, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28751807/protective-effects-of-astaxanthin-on-skin-deterioration
#9
Kumi Tominaga, Nobuko Hongo, Mayuko Fujishita, Yu Takahashi, Yuki Adachi
Astaxanthin is a carotenoid with potent antioxidant and anti-inflammatory activity. To evaluate the anti-inflammatory effect of astaxanthin on skin deterioration, we confirmed its role in epidermal-dermal interactions in vitro. Astaxanthin treatment suppressed ultraviolet B (UVB)-induced inflammatory cytokine secretion in keratinocytes, and matrix metalloproteinase-1 secretion by fibroblasts cultured in UVB-irradiated keratinocyte medium. To verify these findings, we conducted a 16-week clinical study with 65 healthy female participants...
July 2017: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/28748366/clinical-features-of-psoriatic-arthritis-a-comprehensive-review-of-unmet-clinical-needs
#10
REVIEW
Angela McArdle, Stephen Pennington, Oliver FitzGerald
Psoriatic arthritis (PsA) is a form of inflammatory arthritis (IA) affecting approximately 0.25% of the population. It is a heterogeneous disorder associated with joint damage, disability, disfiguring skin disease and in severe cases, premature mortality. Inherently irreversible and frequently progressive, the process of joint damage begins at, or before, the clinical onset of disease. Early recognition and intervention is thus crucial to patient outcome. At disease onset, however, PsA often resembles other forms of arthritis-especially rheumatoid arthritis (RA)...
July 27, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28748192/extranodal-nk-t-cell-lymphoma-nasal-type-presenting-as-refractory-pseudomonas-aeruginosa-facial-cellulitis
#11
Erika Reategui Schwarz, Katerina G Oikonomou, Megan Reynolds, Juliette Kim, Rajeev L Balmiki, Stephanie A Sterling
Extranodal natural killer T-cell lymphoma, nasal type (ENKL), formerly called lethal midline granuloma or angiocentric T-cell lymphoma, is a predominantly extranodal non-Hodgkin lymphoma characterized by vascular damage, necrosis, and an association with Epstein-Barr virus. In the United States, it is more frequently seen in Asian, Asian Pacific Islander, and Hispanic descent populations and is more prevalent in males in their fifth decade. Clinical presentation of NK nasal lymphoma most commonly involves epistaxis; obstruction; discharge; destructive mass in sinuses, palate, and nose; and skin ulceration...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28743058/oral-nanotherapeutics-redox-nanoparticles-attenuate-ultraviolet-b-radiation-induced-skin-inflammatory-disorders-in-kud-hr-hairless-mice
#12
Chitho P Feliciano, Yukio Nagasaki
The active participation of an anti-inflammatory drug in the biological pathways of inflammation is crucial for the achievement of beneficial and therapeutic effects. This study demonstrated the development of redox nanoparticles that can circulate in the blood at significantly high levels, thus increasing their efficacy as an oral treatment against the deleterious effects of reactive oxygen species (ROS) in an in vivo inflammatory skin model. To confirm the blood bioavailability of the nanoparticles, mice were injected with the nanoparticles solution (RNP(N)) via oral gavage...
October 2017: Biomaterials
https://www.readbyqxmd.com/read/28704681/cytokine-il1%C3%AE-and-lactate-as-markers-for-tissue-damage-in-spineboard-immobilisation-a-prospective-randomised-open-label-crossover-trial
#13
Baukje Hemmes, Luuk A de Wert, Peter R G Brink, Cees W J Oomens, Dan L Bader, Martijn Poeze
BACKGROUND: Spinal immobilisation using a rigid long spineboard is a well-established procedure in trauma care. During immobilisation, the body is exposed to high tissue-interface pressures. This may lead to a localised inflammatory response of the skin, which may be used to monitor the body's response to different types of immobilisation device. AIM: In this study we compared the standard rigid spineboard with a new soft-layered spineboard regarding tissue-interface pressures, skin redness as an indicator of reactive hyperaemia and cutaneous IL1α and lactate release...
June 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28702744/plant-extracts-and-natural-compounds-used-against-uvb-induced-photoaging
#14
REVIEW
Maria Cavinato, Birgit Waltenberger, Giorgia Baraldo, Carla V C Grade, Hermann Stuppner, Pidder Jansen-Dürr
Skin is continuously exposed to a variety of environmental stresses, including ultraviolet (UV) radiation. UVB is an inherent component of sunlight that crosses the epidermis and reaches the upper dermis, leading to increased oxidative stress, activation of inflammatory response and accumulation of DNA damage among other effects. The increase in UVB radiation on earth due to the destruction of stratospheric ozone poses a major environmental threat to the skin, increasing the risk of damage with long-term consequences, such as photoaging and photocarcinogenesis...
July 12, 2017: Biogerontology
https://www.readbyqxmd.com/read/28695413/-process-disturbances-and-improvements-of-wound-healing
#15
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/28681504/melanoma-and-non-melanoma-skin-cancer-chemoprevention-a-role-for-nicotinamide
#16
REVIEW
Rashi Minocha, Diona L Damian, Gary M Halliday
Ultraviolet radiation (UVR) causes DNA damage in melanocytes by producing photolesions such as cyclobutane pyrimidine dimers and 8-oxo-7-hydrodeoxyguanosine. The production of reactive oxygen species by UVR also induces inflammatory cytokines that, together with the inherent immunosuppressive properties of UVR, propagate carcinogenesis. Nicotinamide (Vitamin B3 ) enhances DNA repair, modulates the inflammatory environment produced by UVR and reduces UV-induced immunosuppression. As nicotinamide reduces the incidence of actinic keratoses and non-melanoma skin cancers in high-risk individuals, and enhances repair of DNA damage in melanocytes, it is a promising agent for the chemoprevention of melanoma in high-risk populations...
July 5, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28667758/tgf-%C3%AE-and-th17-cells-related-injuries-in-patients-with-sulfur-mustard-exposure
#17
REVIEW
Yunes Panahi, Mostafa Ghanei, Saeed Hassani, Amirhossein Sahebkar
Sulfur mustard (SM) is a vesicating agent that has been employed as a chemical warfare agent. High-dose exposure to sulfur mustard may lead to the damage of rapidly proliferating cells of bone marrow and, therefore, suppression of the immune system. This may be continued as dysfunction of the immune system, and ultimately result in secondary immune disorders. Studies have suggested a role for T cells in SM-induced lung injury. Moreover, observations from animal studies indicate a delayed-type hypersensitivity (DTH) response after skin exposure to SM, providing an understanding that SM can stimulate specific T cell-mediated immune responses...
July 1, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28663093/heat-stress-induced-neuroinflammation-and-aberration-in-monoamine-levels-in-hypothalamus-are-associated-with-temperature-dysregulation
#18
Nishant Ranjan Chauhan, Medha Kapoor, Laxmi Prabha Singh, Rajinder Kumar Gupta, Ramesh Chand Meena, Rajkumar Tulsawani, Sarita Nanda, Shashi Bala Singh
Heat Stress (HS) induces diverse pathophysiological changes, which include brain ischemia, oxidative stress and neuronal damage. The present study was undertaken with the objective to ascertain whether neuroinflammation in Hypothalamus (HTH) caused under HS affects monoamine levels and hence, its physiological role in thermoregulation. Rats were exposed to HS in a heat simulation environmental chamber (Ambient temperature, Ta=45±0.5°C and Relative Humidity, RH=30±10%) with real-time measurement of core temperature (Tc) and skin temperature (Ts)...
September 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28658200/critical-ischemia-times-and-the-effect-of-novel-preservation-solutions-htk-n-and-tiprotec-on-tissues-of-a-vascularized-tissue-isograft
#19
Franka Messner, Theresa Hautz, Michael Jf Blumer, Mario Bitsche, Elisabeth J Pechriggl, Martin Hermann, Bettina Zelger, Bernhard Zelger, Dietmar Öfner, Stefan Schneeberger
BACKGROUND: We herein investigate critical ischemia times and the effect of novel preservation solutions HTK-N and TiProtec on the individual tissues of a rat limb isograft. METHODS: Orthotopic hind-limb transplantations were performed in male Lewis rats following 2h, 6h or 10h of cold ischemia. Limbs were flushed and stored in either HTK-N, TiProtec, HTK or saline solution. Muscle, nerve, vessel, skin and bone samples were procured on day 10 for histology, immunohistochemistry, confocal and electron microscopy and RTqPCR analysis...
June 28, 2017: Transplantation
https://www.readbyqxmd.com/read/28647344/oncogene-expressing-senescent-melanocytes-upregulate-mhc-class-ii-a-candidate-melanoma-suppressor-function
#20
John van Tuyn, Farah Jaber-Hijazi, Douglas MacKenzie, John J Cole, Elizabeth Mann, Jeff S Pawlikowski, Taranjit Singh Rai, David M Nelson, Tony McBryan, Andre Ivanov, Karen Blyth, Hong Wu, Simon Milling, Peter D Adams
On acquisition of an oncogenic mutation, primary human and mouse cells can enter oncogene-induced senescence (OIS). OIS is characterized by a stable proliferation arrest and secretion of pro-inflammatory cytokines and chemokines, the senescence-associated secretory phenotype (SASP). Proliferation arrest and the SASP collaborate to enact tumor suppression, the former by blocking cell proliferation and the latter by recruiting immune cells to clear damaged cells. However, the interactions of OIS cells with the immune system are still poorly defined...
June 21, 2017: Journal of Investigative Dermatology
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