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Non-healing wounds treatments

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https://www.readbyqxmd.com/read/28733702/anti-invasive-effects-of-cxcr4-and-fak-inhibitors-in-non-small-cell-lung-carcinomas-with-mutually-inactivated-p53-and-pten-tumor-suppressors
#1
Miodrag Dragoj, Jasna Bankovic, Evangelia Sereti, Sofija Jovanovic Stojanov, Konstantinos Dimas, Milica Pesic, Tijana Stankovic
Non-small cell lung carcinoma (NSCLC) is the most common type of lung cancer. At the time of diagnosis, a large percentage of NSCLC patients have already developed metastasis, responsible for extremely high mortality rates. CXCR4 receptor and focal adhesion kinase (FAK) are known to regulate such invasive cancer behavior. Their expression is downregulated by p53 and PTEN tumor suppressors which are commonly co-inactivated in NSCLC patients and contribute to metastasis. Therefore, targeting CXCR4 or FAK seems to be a promising strategy in suppressing metastatic spread of p53/PTEN deficient NSCLCs...
July 22, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28731138/upregulation-of-long-non-coding-rna-dq786243-promotes-the-progression-of-gastric-cancer
#2
Ting Shan, Juanyun Fan, Qin Zhao, Kaiyuan Deng, Jiazeng Xia
Long non‑coding RNAs (lncRNAs) have been identified as key regulatory factors in various biological processes. Their dysregulation has been observed in several types of human cancer, including gastric cancer (GC). The aim of the present study was to investigate the putative roles of the lncRNA DQ786243 in the progression of GC, as well as evaluate its diagnostic and therapeutic potential in GC. The expression of DQ786243 in 82 pairs of GC tissues and adjacent healthy tissues, as well as in three GC cell lines and a human normal gastric epithelial cell line, was assessed using reverse transcription‑quantitative polymerase chain reaction...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28729818/a-cooperative-copper-metal-organic-framework-hydrogel-system-improves-wound-healing-in-diabetes
#3
Jisheng Xiao, Siyu Chen, Ji Yi, Hao Zhang, Guillermo A Ameer
Chronic non-healing wounds remain a major clinical challenge that would benefit from the development of advanced, regenerative dressings that promote wound closure within a clinically relevant time frame. The use of copper ions has shown promise in wound healing applications possibly by promoting angiogenesis. However, reported treatments that use copper ions require multiple applications of copper salts or oxides to the wound bed, exposing the patient to potentially toxic levels of copper ions and resulting in variable outcomes...
January 5, 2017: Advanced Functional Materials
https://www.readbyqxmd.com/read/28717842/selective-matrix-metalloproteinase-inhibition-increases-breaking-strength-and-reduces-anastomotic-leakage-in-experimentally-obstructed-colon
#4
Peter-Martin Krarup, Mikkel Eld, Lars Nannestad Jorgensen, Mark Berner Hansen, Magnus S Ågren
PURPOSE: Colonic obstruction causes loss of collagen and impairment of anastomotic integrity by matrix metalloproteinases (MMPs). Unexpectedly, pharmacological MMP inhibition increased anastomotic leakage (AL) in obstructed colon possibly due to the non-selective nature of these compounds and the experimental model applied. We therefore studied the effects of selective MMP inhibition on the healing of anastomoses in colon obstructed by a novel laparoscopic technique. METHODS: Left colon was obstructed in 38 male Sprague-Dawley rats (226-284 g)...
July 17, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28717655/the-neck-burn-scar-contracture-a-concept-of-effective-treatment
#5
REVIEW
Sadanori Akita, Kenji Hayashida, Satoshi Takaki, Yoshihisa Kawakami, Takuto Oyama, Hiroyuki Ohjimi
A neck scar contracture can severely and negatively affect the function of mastication, phonic, or breathing and result in neck pain and issues with esthetics. The best way is of course to avoid such contracture by means of non-surgical treatment such as use of a growth factor. The basic fibroblastic growth factor is clinically well proven in decreasing scar formation and improving healing. There are numerous reconstructive methods for neck contracture, especially when the lesions are relatively limited in part of the neck...
2017: Burns and trauma
https://www.readbyqxmd.com/read/28716024/mir-661-promotes-tumor-invasion-and-metastasis-by-directly-inhibiting-rb1-in-non-small-cell-lung-cancer
#6
Feiye Liu, Yanjun Cai, Xiaoxiang Rong, Jinzhang Chen, Dayong Zheng, Lu Chen, Junyi Zhang, Rongcheng Luo, Peng Zhao, Jian Ruan
BACKGROUND: Aberrant microRNA expression has been implicated in metastasis of cancers. MiR-661 accelerates proliferation and invasion of breast cancer and ovarian cancer, while impedes that of glioma. Its role in non small cell lung cancer (NSCLC) and underlying mechanism are worthy elucidation. METHODS: Expression of miR-661 was measured with real-time PCR in both NSCLC tissues and cell lines. The effects of miR-661 on migration, invasion and metastasis capacity of NSCLC were evaluated using wound healing, transwell assay and animal models...
July 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28704171/a-bioluminescent-pseudomonas-aeruginosa-wound-model-reveals-increased-mortality-of-type-1-diabetic-mice-to-biofilm-infection
#7
Agostinho Hunt A M, Gibson J A, Larrivee C L, O'Reilly S, Navitskaya S, Needle D B, Abramovitch R B, Busik J V, Waters C M
OBJECTIVE: To examine how bacterial biofilms, as contributing factors in the delayed closure of chronic wounds in patients with diabetes, affect the healing process. METHOD: We used daily microscopic imaging and the IVIS Spectrum in vivo imaging system to monitor biofilm infections of bioluminescent Pseudomonas aeruginosa and evaluate healing in non-diabetic and streptozotocin-induced diabetic mice. RESULTS: Our studies determined that diabetes alone did not affect the rate of healing of full-depth murine back wounds compared with non-diabetic mice...
July 1, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28704149/amputation-predictors-in-diabetic-foot-ulcers-treated-with-hyperbaric-oxygen
#8
S T Kaplan, D Hemsinli, S Kaplan, A Arslan
OBJECTIVE: Although hyperbaric oxygen therapy (HBOT) has long been used for diabetic foot ulcers (DFUs), its effectiveness is still controversial. The aim of this study was to investigate the efficacy of HBOT in the management of DFUs and identify amputation predictors. METHOD: Patients with chronic DFUs (Wanger grade 2-5) were included in the study, which took place between January 2010 and December 2012. HBOT, 100% oxygen, 2.4 atmosphere absolute (ATA) for 120 minutes, was administered to all patients in addition to standard treatment...
July 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28702985/photobiomodulation-with-polarized-light-in-the-treatment-of-cutaneous-and-mucosal-ulcerative-lesions
#9
S E Aragona, F R Grassi, G Nardi, J Lotti, G Mereghetti, E Canavesi, E Equizi, A M Puccio, G Gianazza, T Lotti, I Morisi
In recent decades, regenerative medicine has achieved an important evolution at both a conceptual level and scientific production, which explains the current and future possibilities of therapy and daily clinical practice. The main aim of regenerative medicine is the complex system of repair/regeneration. The current literature on the subject demonstrates the advantage of visible light therapy for skin injuries and diseases with the photobiomodulation in which light at low energy levels modulates intra- and extra-cellular photoreceptors by molecular and cellular processes that can stimulate both anti-inflammatory mechanisms and cell proliferative response...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28702902/oxygenation-status-in-chronic-leg-ulcer-after-topical-hemoglobin-application-may-act-as-a-surrogate-marker-to-find-the-best-treatment-strategy-and-to-avoid-ineffective-conservative-long-term-therapy
#10
Maximilian Petri, Ingo Stoffels, Klaus Griewank, Jithin Jose, Peter Engels, Andrea Schulz, Harald Pötzschke, Philipp Jansen, Dirk Schadendorf, Joachim Dissemond, Joachim Klode
PURPOSE: Chronic leg ulcers can be a challenge to treat and long-term therapy a significant cost factor in western public health budgets. Objective wound assessment assays enabling selection of appropriate wound therapy regimes would be desirable. Oxygenation status in ulcer tissue has obtained increased attention as a relevant factor in wound healing. To increase oxygenation in wounds, a topical hemoglobin spray was developed. Although favorable results have been noted, the link between clinical efficacy and the mode of action has not been demonstrated...
July 12, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28700086/antiseptics-for-burns
#11
REVIEW
Gill Norman, Janice Christie, Zhenmi Liu, Maggie J Westby, Jayne M Jefferies, Thomas Hudson, Jacky Edwards, Devi Prasad Mohapatra, Ibrahim A Hassan, Jo C Dumville
BACKGROUND: Burn wounds cause high levels of morbidity and mortality worldwide. People with burns are particularly vulnerable to infections; over 75% of all burn deaths (after initial resuscitation) result from infection. Antiseptics are topical agents that act to prevent growth of micro-organisms. A wide range are used with the intention of preventing infection and promoting healing of burn wounds. OBJECTIVES: To assess the effects and safety of antiseptics for the treatment of burns in any care setting...
July 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28691475/genetic-effects-of-biopad%C3%A2-on-fibroblast-primary-culture
#12
A Baj, G A Beltramini, M Romano, D Lauritano, R M Gaudio, A Palmieri, F Cura, A B Giannì
BIOPAD® is an ivory-white soft sponge, made exclusively of lyophilized type I native heterologous collagen extracted from horse flexor tendon, gelatine free, that keeps its native structure specific to the body’s skin tissue. BIOPAD® is an active dressing, playing an active role in all stages of wound healing process, stimulating granulation tissue growth and enhancing regeneration tissues. It ensures balance between absorption and humidity at wound surface, gaseous exchange of soft tissues during healing process, barrier to prevent bacterial infections and it is completely non-adherent...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28689803/lipopolysaccharides-induce-smad2-phosphorylation-through-pi3k-akt-and-mapk-cascades-in-hsc-t6-hepatic-stellate-cells
#13
Ying-Hsien Kao, Po-Han Chen, Tin-Ya Wu, Yu-Chun Lin, Ming-Shian Tsai, Po-Huang Lee, Tzong-Shyuan Tai, Huoy-Rou Chang, Cheuk-Kwan Sun
AIMS: Endotoxemia and its pro-fibrogenic signaling play a significant role in the development of hepatic fibrosis. This study investigated whether lipopolysaccharide (LPS) directly activate cultured HSC-T6 hepatic stellate cells (HSCs) through triggering Smad-dependent pro-fibrogenic signaling pathway. MAIN METHODS: Direct cell counting and assays for cell proliferation and migration were used to measure the effects of LPS on HSC behaviors. Quantitative PCR, Western blot, and gelatin zymography were used to quantify the molecular effects of LPS on expression of HSC activation markers and signaling activity...
July 6, 2017: Life Sciences
https://www.readbyqxmd.com/read/28686979/high-mannose-n-glycan-binding-lectin-from-remusatia-vivipara-rvl-limits-cell-growth-motility-and-invasiveness-of-human-breast-cancer-cells
#14
B R Sindhura, Prajna Hegde, Vishwanath B Chachadi, Shashikala R Inamdar, Bale M Swamy
Breast cancer known for its high metastatic potential is responsible for large mortality rate amongst women; hence it is imperative to search for effective anti-metastatic molecules despite anticancer drugs. The current study describes the potential of Remusatia vivipara lectin (RVL), inducing apoptosis in breast cancer cells there by limiting motility and invasiveness. RVL binds to the cell surface glycans of MDA-MB-468 and MCF-7 cells, exhibiting strong glycan mediated cytotoxic effect, but show marginal effect on non-tumorigenic MCF-10A cells...
July 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28680144/transplanted-adipose-derived-stem-cells-can-be-short-lived-yet-accelerate-healing-of-acid-burn-skin-wounds-a-multimodal-imaging-study
#15
Ghulam Muhammad, Jiadi Xu, Jeff W M Bulte, Anna Jablonska, Piotr Walczak, Miroslaw Janowski
The incidence of accidental and intentional acid skin burns is rising. Current treatment strategies are mostly inadequate, leaving victims disfigured and without treatment options. Here, we have shown that transplantation of adipose-derived stem cells (ASCs) accelerates the process of acid burn wound-healing. Pre-conditioning of ASCs using ascorbic acid (AA) or hypoxic conditions provided additional benefit. While the wounds were ultimately healed in all mice, histological analysis revealed that, in non-transplanted animals, the number of hair follicles was reduced...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28677217/age-associated-intracellular-superoxide-dismutase-deficiency-potentiates-dermal-fibroblast-dysfunction-during-wound-healing
#16
Toshihiro Fujiwara, Teruyuki Dohi, Zeshaan N Maan, Kristine C Rustad, Sun Hyung Kwon, Jagannath Padmanabhan, Alexander J Whittam, Hirotaka Suga, Dominik Duscher, Melanie Rodrigues, Geoffrey C Gurtner
Reactive oxygen species (ROS) impair wound healing through destructive oxidation of intracellular proteins, lipids, and nucleic acids. Intracellular superoxide dismutase (SOD1) regulates ROS levels and plays a critical role in tissue homeostasis. Recent evidence suggests that age-associated wound healing impairments may partially result from decreased SOD1 expression. We investigated the mechanistic basis by which increased oxidative stress links to age-associated impaired wound healing. Fibroblasts were isolated from unwounded skin of young and aged mice, and myofibroblast differentiation was assessed by measuring α-smooth muscle actin and collagen gel contraction...
July 4, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28676002/recent-advances-in-polymer-based-wound-dressings-for-the-treatment-of-diabetic-foot-ulcer-an-overview-of-state-of-the-art
#17
Zahid Hussain, Hnin Ei Thu, Ahmad Nazrun Shuid, Haliza Katas, Fahad Hussain
Diabetic foot ulcers (DFUs) are the chronic, non-healing complications of diabetic mellitus which compels a significant burden to the patients and the healthcare system. Peripheral vascular disease, diabetic neuropathy, and abnormal cellular and cytokine/chemokine activity are among the prime players which exacerbate the severity and prevent wound reapir. Unlike acute wounds, DFUs impose a substantial challenge to the conventional wound dressings and demand the development of novel and advanced wound healing modalities...
July 4, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28672805/epigenetic-regulation-of-the-epithelial-to-mesenchymal-transition-in-lung-cancer
#18
REVIEW
Joëlle Roche, Robert M Gemmill, Harry A Drabkin
Lung cancer is the leading cause of cancer deaths worldwide. It is an aggressive and devastating cancer because of metastasis triggered by enhanced migration and invasion, and resistance to cytotoxic chemotherapy. The epithelial to mesenchymal transition (EMT) is a fundamental developmental process that is reactivated in wound healing and a variety of diseases including cancer where it promotes migration/invasion and metastasis, resistance to treatment, and generation and maintenance of cancer stem cells. The induction of EMT is associated with reprogramming of the epigenome...
June 24, 2017: Cancers
https://www.readbyqxmd.com/read/28672135/local-application-of-platelet-rich-fibrin-during-lower-third-molar-extraction-improves-treatment-outcomes
#19
REVIEW
Yun He, Junliang Chen, Yue Huang, Qin Pan, Minhai Nie
PURPOSE: Application of platelet-rich fibrin (PRF) during tooth extraction is able to accelerate wound healing, stimulate osseous and soft tissue regeneration, and reduce unwanted side effects. The aim of this meta-analysis was to investigate the effect of local application of PRF on controlling postoperative signs and symptoms after the extraction of an impacted lower third molar. MATERIALS AND METHODS: A systematic search of PubMed, Web of Science, Embase, and the Cochrane Library was performed to identify all studies published up to October 2016 that investigated the effect of PRF on lower third molar extraction...
June 8, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28668507/synthetic-peptide-tekkrretvereke-derived-from-ezrin-induces-differentiation-of-nih-3t3-fibroblasts
#20
Marina Chulkina, Ulugbek Negmadjanov, Ekaterina Lebedeva, Aleksey Pichugin, Dmitriy Mazurov, Ravshan Ataullakhanov, Ekhson Holmuhamedov
Synthetic 14 AA peptide (Gepon) derived from the hinge region of ezrin, a protein that links cell surface molecules to intracellular actin filaments, accelerates and facilitates wound and ulcer healing in clinical applications. However, the molecular mechanisms underlying this phenomenon and involved in enhanced healing of wounds with Gepon are not yet understood. The purpose of current study was to investigate intracellular signaling pathways involved in the effect of this peptide on wild type and genetically modified (CD44 KO) NIH/3T3 embryonic mouse fibroblasts...
June 28, 2017: European Journal of Pharmacology
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