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https://www.readbyqxmd.com/read/28449283/physiological-responses-of-reared-sea-bream-sparus-aurata-linnaeus-1758-to-an-amyloodinium-ocellatum-outbreak
#1
M Moreira, D Schrama, F Soares, T Wulff, P Pousão-Ferreira, P Rodrigues
Amyloodiniosis represents a major bottleneck for semi-intensive aquaculture production in Southern Europe, causing extremely high mortalities. Amyloodinium ocellatum is a parasitic dinoflagellate that can infest almost all fish, crustacean and bivalves that live within its ecological range. Fish mortalities are usually attributed to anoxia, associated with serious gill hyperplasia, inflammation, haemorrhage and necrosis in heavy infestations; or with osmoregulatory impairment and secondary microbial infections due to severe epithelial damage in mild infestation...
April 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28448268/the-effect-of-pycnogenol-on-wound-healing-in-diabetic-rats
#2
Elif Dogan, Latif Yanmaz, Semin Gedikli, Ugur Ersoz, Zafer Okumus
Pycnogenol (PYC), an extract of pine bark, is known to have photoprotective, antimicrobial, antioxidant, and anti-inflammatory properties. An in vivo study was conducted to evaluate the effects of PYC treatment on wound healing in 48 adult male Sprague-Dawley rats, of which 24 were injected with a single dose of alloxan to induce diabetes. Three (3) excisional skin wounds (1.3 cm x 1.3 cm x 2 mm) were created in each healthy and diabetic animal. One (1) wound in each animal was left untreated, 1 was treated daily with a cleanser (ethacridine lactate) and covered with silver sulfadiazine (SSD), and 1 was treated with PYC powder (30 mg)...
April 2017: Ostomy/wound Management
https://www.readbyqxmd.com/read/28447897/specific-hepatic-stellate-cell-penetrating-peptide-targeted-delivery-of-a-kla-peptide-reduces-collagen-accumulation-by-inducing-apoptosis
#3
Zhengrong Guo, Dong Li, Huanyan Peng, Jiwen Kang, Xiaoyu Jiang, Xiaoli Xie, Dianxing Sun, Huijing Jiang
Liver fibrosis is an aberrant wound-healing process to chronic hepatic inflammation and is characterized by excessive accumulation of extracellular matrix (ECM) that is produced by activated hepatic stellate cells (HSCs). Thus, activated HSCs play a key role in the pathogenesis of liver fibrosis and are a potential target for the treatment of liver fibrosis. Herein, we report that a specific HSC-penetrating peptide reduced collagen accumulation by inducing the apoptosis of HSC-T6 cells. We first screened HSC-specific transduction peptides and identified a novel HSC-targeted cell-penetrating peptide (HTP) that specifically interacted with HSC-T6 cells...
April 27, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28446157/natural-products-isolated-from-tetragonula-carbonaria-cerumen-modulate-free-radical-scavenging-and-5-lipoxygenase-activities-in-vitro
#4
Karina D Hamilton, Peter R Brooks, Steven M Ogbourne, Fraser D Russell
BACKGROUND: Propolis and cerumen are plant-derived products found in honeybees and stingless bees, respectively. Although propolis is an ancient folk medicine, the bioactivities of cerumen obtained from Australian native stingless bees (Tetragonula carbonaria) have not been widely studied. Therefore, we investigated selected anti-oxidant and anti-inflammatory properties of T. carbonaria cerumen. METHODS: A methanolic extract was prepared from the combined cerumen of 40 T...
April 26, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28445380/a-formidable-foe-is-sabotaging-your-results-what-you-should-know-about-biofilms-and-wound-healing
#5
Jenny C Barker, Ibrahim Khansa, Gayle M Gordillo
LEARNING OBJECTIVES: After reading this article, the participant should be able to: 1. Describe biofilm pathogenesis as it relates to problem wounds. 2. Understand the preclinical and clinical evidence implicating biofilm in problem wounds. 3. Explain the diagnostic and treatment challenges that biofilms create for problem wounds. 4. Demonstrate a basic understanding of emerging strategies aimed at counteracting these processes. SUMMARY: Biofilm represents a protected mode of growth for bacteria, allowing them to evade standard diagnostic techniques and avoid eradication by standard therapies...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28442300/effects-of-mmp12-on-cell-motility-and-inflammation-during-corneal-epithelial-repair
#6
Marie Wolf, Inna Maltseva, Selene M Clay, Peipei Pan, Abhinay Gajjala, Matilda F Chan
Corneal epithelial defects are a common cause of ocular morbidity and can result in corneal scarring if they do not heal properly. Matrix metalloproteinases (MMPs) are extracellular matrix proteinases that regulate multiple aspects of corneal repair. We have previously shown that MMP12 has a protective effect on corneal fibrosis through its regulation of neutrophil and macrophage infiltration and angiogenesis in a chemical injury model involving full thickness damage to the cornea. However, the role of MMP12 in injuries limited to the corneal epithelium is relatively unknown...
April 22, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28440420/wound-healing-effect-of-an-astragalus%C3%A2-membranaceus-polysaccharide-and-its-mechanism
#7
Bingjiang Zhao, Xuanfen Zhang, Wei Han, Ju Cheng, Yonghong Qin
In the present study, a novel polysaccharide, APS2-1, was isolated and purified from Astragalus membranaceus using DEAE-cellulose and Sephadex G-100 chromatography. The effect of APS2‑1 on the promotion of wound healing was evaluated and its preliminary mechanism was investigated. In vitro experiments showed that APS2‑1 was able to promote human skin fibroblast (HSF) propagation and accelerate cell cycle progression. For further examination, a scalded mice model was used to verify the effect of APS2‑1 and investigate its mechanism of action...
April 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28439967/involvement-of-heparanase-procoagulant-domain-in-bleeding-and-wound-healing
#8
Yonatan Crispel, Shourouk Ghanem, Judith Attias, Inna Kogan, Benjamin Brenner, Yona Nadir
BACKGROUND: Heparanase, known to be involved in angiogenesis and metastasis, was shown to form a complex with tissue factor (TF) and to enhance the generation of factor Xa. Our study demonstrated that peptides derived from TF pathway inhibitor (TFPI)-2 impeded the procoagulant effect of heparanase and attenuated inflammation, tumor growth and vascularization. AIMS: The present study aimed to identify the procoagulant domain in the heparanase molecule and to evaluate its effects in a model of wound healing that involves inflammation and angiogenesis...
April 25, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28439731/il-10-improves-cardiac-remodeling-after-myocardial-infarction-by-stimulating-m2-macrophage-polarization-and-fibroblast-activation
#9
Mira Jung, Yonggang Ma, Rugmani Padmanabhan Iyer, Kristine Y DeLeon-Pennell, Andriy Yabluchanskiy, Michael R Garrett, Merry L Lindsey
Inflammation resolution is important for scar formation following myocardial infarction (MI) and requires the coordinated actions of macrophages and fibroblasts. In this study, we hypothesized that exogenous interleukin-10 (IL-10), an anti-inflammatory cytokine, promotes post-MI repair through actions on these cardiac cell types. To test this hypothesis, C57BL/6J mice (male, 3- to 6-month old, n = 24/group) were treated with saline or IL-10 (50 μg/kg/day) by osmotic mini-pump infusion starting at day (d) 1 post-MI and sacrificed at d7 post-MI...
May 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28433660/redox-regulation-of-gasotransmission-in-the-vascular-system-a-focus-on-angiogenesis
#10
REVIEW
Rajesh K Mistry, Alison C Brewer
Reactive oxygen species have emerged as key participants in a broad range of physiological and pathophysiological processes, not least within the vascular system. Diverse cellular functions which have been attributed to some of these pro-oxidants within the vasculature include the regulation of blood pressure, neovascularisation and vascular inflammation. We here highlight the emerging roles of the enzymatically-generated reaction oxygen species, O2(-) and H2O2, in the regulation of the functions of the gaseous signalling molecules: nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H2S)...
April 19, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28432900/lysophosphatidic-acid-induces-expression-of-genes-in-human-oral-keratinocytes-involved-in-wound-healing
#11
Hong Huynh Thorlakson, Stian Andre Engen, Olav Schreurs, Karl Schenck, Inger Johanne Schytte Blix
OBJECTIVE: Epithelial cells participate in wound healing by covering wounds, but also as important mediators of wound healing processes. Topical application of the phospholipid growth factor lysophosphatidic acid (LPA) accelerates dermal wound healing and we hypothesized that LPA can play a role in human oral wound healing through its effects on human oral keratinocytes (HOK). DESIGN: HOK were isolated from gingival biopsies and exposed to LPA. The LPA receptor profile, signal transduction pathways, gene expression and secretion of selected cytokines were analyzed...
April 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28426124/propofol-suppresses-lps-induced-nuclear-accumulation-of-hif-1%C3%AE-and-tumor-aggressiveness-in-non-small-cell-lung-cancer
#12
Nengli Yang, Yafeng Liang, Pei Yang, Fuhai Ji
Tumor hypoxia has been recognized as a characteristic of the tumor microenvironment and promotes metastasis in a variety of types of cancer. However, in lung cancer, the role of hypoxia-inducible factor 1α (HIF-1α) in modulating the cellular response to the inflammation-related microenvironment remains unclear. In the present study, enhanced expression of HIF-1α accompanied by an increased ROS level was observed in lipopolysaccharide (LPS)-stimulated non-small cell lung cancer (NSCLC) cells. In addition, propofol, a general anesthetic, was found to significantly reduce the LPS-induced upregulation of HIF-1α and ROS in a dose-dependent manner...
March 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28425868/pomegranate-as-a-possible-treatment-in-reducing-risk-of-developing-wound-healing-obesity-neurodegenerative-disorders-and-diabetes-mellitus
#13
Manaf AlMatar, Md Rashedul Islam, Othman Albari, Işıl Var, Fatih Köksal
Four distinguished although overlying stages make up the methodical procedure of wound healing, which are hemostasis, inflammation, proliferation and remodelling. Multiple sclerosis (MS) comprises a persistent inflammatory infection of the central nervous system, and is related to demyelination, neurodegeneration, as well as susceptibility to oxidative pressure. Obesity signifies a swiftly developing danger to the wellbeing of populations in a rising number of nations. Usually called diabetes mellitus (DM) by medical practitioners, diabetes details a collection of metabolic diseases within which the individual has raised blood glucose, either due to an insufficiency of insulin generation, or the lack of suitable response by the body to insulin, or both...
April 19, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28424334/glycosaminoglycan-based-hydrogels-capture-inflammatory-chemokines-and-rescue-defective-wound-healing-in-mice
#14
Nadine Lohmann, Lucas Schirmer, Passant Atallah, Elke Wandel, Ruben A Ferrer, Carsten Werner, Jan C Simon, Sandra Franz, Uwe Freudenberg
Excessive production of inflammatory chemokines can cause chronic inflammation and thus impair cutaneous wound healing. Capturing chemokine signals using wound dressing materials may offer powerful new treatment modalities for chronic wounds. Here, a modular hydrogel based on end-functionalized star-shaped polyethylene glycol (starPEG) and derivatives of the glycosaminoglycan (GAG) heparin was customized for maximal chemokine sequestration. The material is shown to effectively scavenge the inflammatory chemokines MCP-1 (monocyte chemoattractant protein-1), IL-8 (interleukin-8), and MIP-1α (macrophage inflammatory protein-1α) and MIP-1β (macrophage inflammatory protein-1β) in wound fluids from patients suffering from chronic venous leg ulcers and to reduce the migratory activity of human monocytes and polymorphonuclear neutrophils...
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28422322/pentraxin-3-modulates-lps-induced-inflammatory-response-and-attenuates-liver-injury
#15
Luis Perea, Mar Coll, Lucia Sanjurjo, Delia Blaya, Adil El Taghdouini, Daniel Rodrigo-Torres, José Altamirano, Isabel Graupera, Beatriz Aguilar-Bravo, Marta Llopis, Julia Vallverdú, Joan Caballeria, Leo A van Grunsven, Maria-Rosa Sarrias, Pere Ginès, Pau Sancho-Bru
Acute-on-chronic liver injury is characterized by an important inflammatory response frequently associated with endotoxemia. In this context, acute phase proteins such as Pentraxin-3 (PTX3) are released, however, little is known about their role in chronic liver disease. The aim of this study was to elucidate the role of PTX3 in liver injury. Role of PTX3 was evaluated in cultured human cells, liver tissue slices and mice with acute-on-chronic liver injury. PTX3 expression was assessed in tissue and serum samples from 54 patients with alcoholic hepatitis (AH)...
April 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28422070/one-year-follow-up-risk-assessment-in-skh-1-mice-and-wounds-treated-with-an-argon-plasma-jet
#16
Anke Schmidt, Thomas von Woedtke, Jan Stenzel, Tobias Lindner, Stefan Polei, Brigitte Vollmar, Sander Bekeschus
Multiple evidence in animal models and in humans suggest a beneficial role of cold physical plasma in wound treatment. Yet, risk assessment studies are important to further foster therapeutic advancement and acceptance of cold plasma in clinics. Accordingly, we investigated the longterm side effects of repetitive plasma treatment over 14 consecutive days in a rodent full-thickness ear wound model. Subsequently, animals were housed for 350 days and sacrificed thereafter. In blood, systemic changes of the proinflammatory cytokines interleukin 1β and tumor necrosis factor α were absent...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418938/a-study-on-postmortem-wound-dating-by-gross-and-histopathological-examination-of-abrasions
#17
Javaregowda Vinay, Sathyanarayana Harish, Gouri S R Mangala, Basappa S Hugar
INTRODUCTION: Abrasions are the most common blunt force injuries. The precise dating of injury is extremely important in forensic medicine practice. As we know, the wound healing occurs in well-orchestrated sequence, consisting of inflammation, proliferation, and maturation.A study of occurrence of such phases will help in understanding the sequence of events in wound healing. In this context, this study of wound dating from gross and microscopic level was taken. MATERIALS AND METHODS: Postmortem study of wound dating by gross and histopathological examination of abrasions was carried out in the Department of Forensic Medicine, in M...
April 17, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28413186/the-characterization-of-a-full-thickness-excision-open-foot-wound-model-in-n5-streptozotocin-stz-induced-type-2-diabetic-rats-that-mimics-diabetic-foot-ulcer-in-terms-of-reduced-blood-circulation-higher-c-reactive-protein-elevated-inflammation-and-reduced-cell
#18
Caroline Oi-Ling Yu, Kwok-Sui Leung, Kwok-Pui Fung, Francis Fu-Yuen Lam, Ethel Sau-Kuen Ng, Kit-Man Lau, Simon Kwoon-Ho Chow, Wing-Hoi Cheung
Delayed foot wound healing is a major complication attributed to hyperglycemia in type 2 diabetes mellitus (DM) patients, and these wounds may develop into foot ulcers. There are at least two types of DM wound models used in rodents to study delayed wound healing. However, clinically relevant animal models are not common. Most models use type 1 DM rodents or wounds created on the back rather than on the foot. An open full-thickness excision wound on the footpad of type 2 DM rats is more clinically relevant, but such a model has not yet been characterized systematically...
April 11, 2017: Experimental Animals
https://www.readbyqxmd.com/read/28413063/amniotic-membrane-application-for-the-healing-of-chronic-wounds-and-ulcers
#19
Gregorio Castellanos, Ángel Bernabé-García, José M Moraleda, Francisco J Nicolás
Wound healing usually follows a predictable sequence and prognosis of events. Its evolutionary process is the result of a complicated interaction between patient-related factors, the wound, the treatment used and the skills and knowledge of the professionals who treat them. Only through a meticulous initial assessment of the wound is it possible to identify the factors that contribute to its complexity. The challenge for professionals will be to implement efficient therapies at the right time and in the most cost-efficient way in order to reduce associated problems, treat the symptoms and expectations of the patients and achieve adequate wound healing whenever possible...
April 10, 2017: Placenta
https://www.readbyqxmd.com/read/28412905/therapeutic-potential-of-heme-oxygenase-1-carbon-monoxide-system-against-ischemia-reperfusion-injury
#20
Yuanyuan Cheng, Jianhui Rong
BACKGROUND: Ischemia-reperfusion (I/R) injury causes the dysfunctions of different major organs, leading to morbidity and mortality on the global scale. Among a battery of therapeutic targets, the heme oxygenase-1 (HO-1)/carbon monoxide (CO) system has been evaluated for the development of new therapies against I/R injury. The enzyme HO-1 catalyzes the degradation of heme into three biologically active end products, namely biliverdin/bilirubin, CO and ferrous ion. Interestingly, CO is one of a few bioactive gaseous molecules with the capability of regulating inflammation, cell survival and growth...
April 13, 2017: Current Pharmaceutical Design
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