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https://www.readbyqxmd.com/read/28445930/opioids-modulators-of-angiogenesis-in-wound-healing-and-cancer
#1
REVIEW
Martina Ondrovics, Andrea Hoelbl-Kovacic, Daniela Alexandra Fux
Opioids are potent drugs that are widely used to control wound or cancer pain. Increasing evidence suggest that opioids mediate clinically relevant effects that go beyond their classical role as analgesics. Of note, opioids appear to modulate angiogenesis - a process that is critical in wound healing and cancer progression. In this review, we focus on pro- and anti-angiogenic facets of opioids that arise from the activation of individual opioid receptors and the usage of individual concentrations or application routes...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445705/mutation-characterization-and-heterodimer-analysis-of-patients-with-leukocyte-adhesion-deficiency-including-one-novel-mutation
#2
Shahram Teimourian, Martin De Boer, Dirk Roos, Anna Isaian, Ehsan Moghanloo, Sharhzad Lashkary, Bita Hassani, Hasan Mollanoori, Vahid Babaei, Asaad Azarnezhad
BACKGROUND AND AIM: Leukocyte adhesion deficiency type 1 (LAD-I) is a rare, autosomal recessive disorder of neutrophil migration, characterized by severe, recurrent bacterial infections, inadequate pus formation and impaired wound healing. The ITGB2 gene encodes the β2 integrin subunit (CD18) of the leukocyte adhesion cell molecules, and mutations in this gene cause LAD-I. The aim of the current study was to investigate the mutations in patients diagnosed with LAD-I and functional studies of the impact of two previously reported and a novel mutation on the expression of the CD18/CD11a heterodimer...
April 23, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28445626/fabrication-and-characterization-of-chitosan-polyvinylpyrrolidone-and-cellulose-nanowhiskers-nanocomposite-films-for-wound-healing-drug-delivery-application
#3
Abshar Hasan, Gyan Waibhaw, Sakshi Tiwari, K Dharmalingam, I Shukla, Lalit M Pandey
This study describes the preparation of composite film using chitosan (CS) and polyvinylpyrrolidone (PVP) with incorporated cellulose nanowhiskers (CNWs) for drug delivery application. CNWs were prepared by acid hydrolysis of cellulose with sulfuric acid. Field emission scanning electron microscopy studies revealed nanofibrous morphology of CNWs with 20-30 nm diameter and 200-250 nm in length. X-ray powder diffraction (XRD) analysis confirmed highly crystalline nature of CNWs with 92.81% crystallinity. Incorporation of CNWs enhanced the thermal and mechanical properties of films...
April 26, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28445461/tumour-ischaemia-by-interferon-%C3%AE-resembles-physiological-blood-vessel-regression
#4
Thomas Kammertoens, Christian Friese, Ainhoa Arina, Christian Idel, Dana Briesemeister, Michael Rothe, Andranik Ivanov, Anna Szymborska, Giannino Patone, Severine Kunz, Daniel Sommermeyer, Boris Engels, Matthias Leisegang, Ana Textor, Hans Joerg Fehling, Marcus Fruttiger, Michael Lohoff, Andreas Herrmann, Hua Yu, Ralph Weichselbaum, Wolfgang Uckert, Norbert Hübner, Holger Gerhardt, Dieter Beule, Hans Schreiber, Thomas Blankenstein
The relative contribution of the effector molecules produced by T cells to tumour rejection is unclear, but interferon-γ (IFNγ) is critical in most of the analysed models. Although IFNγ can impede tumour growth by acting directly on cancer cells, it must also act on the tumour stroma for effective rejection of large, established tumours. However, which stroma cells respond to IFNγ and by which mechanism IFNγ contributes to tumour rejection through stromal targeting have remained unknown. Here we use a model of IFNγ induction and an IFNγ-GFP fusion protein in large, vascularized tumours growing in mice that express the IFNγ receptor exclusively in defined cell types...
April 26, 2017: Nature
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/28445378/the-impact-of-body-mass-index-on-abdominal-wall-reconstruction-outcomes-a-comparative-study
#6
Salvatore A Giordano, Patrick B Garvey, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Obesity and higher body mass index may be associated with higher rates of wound healing complications and hernia recurrence rates following complex abdominal wall reconstruction. The authors hypothesized that higher body mass indexes result in higher rates of postoperative wound healing complications but similar rates of hernia recurrence in abdominal wall reconstruction patients. METHODS: The authors included 511 consecutive patients who underwent abdominal wall reconstruction with underlay mesh...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445366/biomechanical-integrity-in-craniofacial-surgery-calvarial-reconstruction-in-favorable-and-infected-defects-with-bone-morphogenetic-protein-2
#7
Zoe M MacIsaac, Sarah E Henderson, Sameer Shakir, Sanjay Naran, Darren M Smith, Liliana Camison, James J Cray, Alejandro J Almarza, Gregory M Cooper, Joseph E Losee
BACKGROUND: The limitations of autologous and alloplastic reconstruction for craniofacial bone defects have created a clinical need for viable tissue-engineering strategies. Recombinant human bone morphogenetic protein-2 (rhBMP-2) has shown promise in this setting. The aim of this study was to determine the long-term biomechanical properties of rhBMP-2-mediated calvarial reconstruction. METHODS: Twelve-week-old New Zealand White rabbits underwent subtotal calvarectomy...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445365/improvement-of-flap-necrosis-in-a-rat-random-skin-flap-model-by-in-vivo-electroporation-mediated-hgf-gene-transfer
#8
S Morteza Seyed Jafari, Maziar Shafighi, Helmut Beltraminelli, Thomas Geiser, Robert E Hunger, Amiq Gazdhar
BACKGROUND: Despite great understanding of underlying mechanisms for flap necrosis and advances in surgical techniques, flap necrosis remains a critical issue. In the present study, the authors investigated the efficacy of electroporation-mediated hepatocyte growth factor (HGF) gene delivery to random dorsal skin flaps (McFarlane) to accelerate wound healing and reduce flap necrosis. METHODS: Fifteen male Wistar rats (290 to 320 g) were divided randomly into three groups...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445246/single-delivery-of-high-diversity-fecal-microbiota-preparation-by-colonoscopy-is-safe-and-effective-in-increasing-microbial-diversity-in-active-ulcerative-colitis
#9
Vinita Jacob, Carl Crawford, Shirley Cohen-Mekelburg, Monica Viladomiu, Gregory G Putzel, Yecheskel Schneider, Fatiha Chabouni, Sarah OʼNeil, Brian Bosworth, Viola Woo, Nadim J Ajami, Joseph F Petrosino, Ylaine Gerardin, Zain Kassam, Mark Smith, Iliyan D Iliev, Gregory F Sonnenberg, David Artis, Ellen Scherl, Randy S Longman
BACKGROUND: Recent trials suggest fecal microbiota transplantation (FMT) with repeated enemas and high-diversity FMT donors is a promising treatment to induce remission in ulcerative colitis. METHODS: We designed a prospective, open-label pilot study to assess the safety, clinical efficacy, and microbial engraftment of single FMT delivery by colonoscopy for active ulcerative colitis using a 2-donor fecal microbiota preparation (FMP). Safety and clinical endpoints of response, remission, and mucosal healing at week 4 were assessed...
April 25, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28444934/dynamic-iminoboronate-based-boroxine-chemistry-for-the-design-of-ambient-humidity-sensitive-self-healing-polymers
#10
Sébastien Delpierre, Bertrand Willocq, Julien De Winter, Philippe Dubois, Pascal Gerbaux, Jean-Marie Raquez
Developing intrinsic self-healing polymeric materials is of great interest nowadays to extend material lifetime and/or prevent the replacement of damaged pieces. Spontaneously humidity-sensitive healable polymer network built around dynamic covalent B-O bonds was templated by using iminoboronate-based boroxine derivatives. Taking advantage of the dynamic boroxine/boronic acid equilibrium and iminoboronate chemistry, it is possible to construct polymeric materials able to self-heal without requiring any energy-demanding external activation...
April 26, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28444901/pge2-receptor-subtype-1-ep1-regulates-mesenchymal-stromal-cell-osteogenic-differentiation-by-modulating-cellular-energy-metabolism
#11
M Feigenson, R A Eliseev, J H Jonason, B N Mills, R J O'Keefe
Mesenchymal stromal cells (MSCs) are multipotent progenitors capable of differentiation into osteoblasts and can potentially serve as a source for cell-based therapies for bone repair. Many factors have been shown to regulate MSC differentiation into the osteogenic lineage such as the Cyclooxygenase-2 (COX2)/Prostaglandin E2 (PGE2) signaling pathway that is critical for bone repair. PGE2 binds four different receptors EP1-4. While most studies focus on the role PGE2 receptors EP2 and EP4 in MSC differentiation, our study focuses on the less studied, receptor subtype 1 (EP1) in MSC function...
April 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28444839/age-dependent-alterations-in-osteoblast-and-osteoclast-activity-in-human-cancellous-bone
#12
Mustafa Becerikli, Henriette Jaurich, Jessica Schira, Matthias Schulte, Carmen Döbele, Christoph Wallner, Stephanie Abraham, Johannes M Wagner, Mehran Dadras, Ulrich Kneser, Marcus Lehnhardt, Björn Behr
It is assumed that the activity of osteoblasts and osteoclasts is decreased in bone tissue of aged individuals. However, detailed investigation of the molecular signature of human bone from young compared to aged individuals confirming this assumption is lacking. In this study, quantitative expression analysis of genes related to osteogenesis and osteoclastogenesis of human cancellous bone derived from the distal radius of young and aged individuals was performed. Furthermore, we additionally performed immunohistochemical stainings...
April 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28444820/casticin-impairs-cell-migration-and-invasion-of-mouse-melanoma-b16f10-cells-via-pi3k-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways
#13
Yung-Luen Shih, Hsiao-Min Chou, Hsiu-Chen Chou, Hsu-Feng Lu, Yung-Lin Chu, Hung-Sheng Shang, Jing-Gung Chung
Casticin, a polymethoxyflavone, is one of the major active components obtained from Fructus viticis, which have been shown to have anticancer activities including induce cell apoptosis in human cancer cells. The aim of this study was to investigate the molecular mechanisms by which casticin inhibits cell migration and invasion of mouse melanoma B16F10 cells. Cell viability was examined by MTT assay and the results indicated that casticin decreased the total percentages of viable cells in dose-dependent manners...
April 26, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28444744/dual-cdk4-6-inhibition-by-pd-0332991-induces-apoptosis-and-senescence-in-esophageal-squamous-cell-carcinoma-cells
#14
Liang Chen, Jingxuan Pan
BACKGROUND AND PURPOSE: Aberrant activation of Cyclin D1-CDK4/6-Rb signaling pathway is common in esophageal squamous cell carcinoma (ESCC). PD-0332991, a highly specific inhibitor of CDK4/6, has been showed potent antitumor activity against multiple types of cancer. The purpose of this study was to examine the in vitro and in vivo antineoplastic effect of PD-0332991 against the growth and metastasis in ESCC cells. EXPERIMENTAL APPROACH: Cell viability and synergy between PD-0332991 and 5-fluorouracil/Cisplatin were measured by MTS assay and CalcuSyn software, respectively...
April 25, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28444407/-aseptic-loosening-of-total-ankle-replacement-and-conversion-to-ankle-arthrodesis
#15
M D Wimmer, M Hettchen, M M Ploeger, B Hintermann, D C Wirtz, A Barg
OBJECTIVE: To remove loosened prosthesis components, to perform augmentation, to address osseous defects, to perform neutrally aligned ankle arthrodesis, and to achieve postoperative pain relief. INDICATIONS: Symptomatic, aseptic loosening of total ankle replacement (TAR) with/without substantial bone defect of the tibial and/or talar bone stock. CONTRAINDICATIONS: General surgical or anesthesiological risks, periprosthetic infection, local or systemic infection, nonmanageable soft tissue problems...
April 25, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28443949/is-reiki-or-prayer-effective-in-relieving-pain-during-hospitalization-for-cesarean-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#16
Guilherme Augusto Rago Ferraz, Meline Rosseto Kron Rodrigues, Silvana Andrea Molina Lima, Marcelo Aparecido Ferraz Lima, Gabriela Lopes Maia, Carlos Alberto Pilan, Michelle Sako Omodei, Ana Cláudia Molina, Regina El Dib, Marilza Vieira Cunha Rudge
CONTEXT AND OBJECTIVE: This systematic review compared reiki and prayer with drug use for relieving pain during hospitalization for cesarean, given that the popularity of integrative medicine and spiritual healing has been increasing. It had the aim of evaluating whether reiki or prayer is effective in relieving pain during cesarean section. DESIGN AND SETTING: Systematic review with meta-analysis conducted at Botucatu Medical School, UNESP, São Paulo, Brazil. METHODS: The following databases were searched up to March 2016: MEDLINE, Embase, LILACS and CENTRAL...
April 20, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28443636/rich-complex-behaviour-of-self-assembled-nanoparticles-far-from-equilibrium
#17
Serim Ilday, Ghaith Makey, Gursoy B Akguc, Özgün Yavuz, Onur Tokel, Ihor Pavlov, Oguz Gülseren, F Ömer Ilday
A profoundly fundamental question at the interface between physics and biology remains open: what are the minimum requirements for emergence of complex behaviour from nonliving systems? Here, we address this question and report complex behaviour of tens to thousands of colloidal nanoparticles in a system designed to be as plain as possible: the system is driven far from equilibrium by ultrafast laser pulses that create spatiotemporal temperature gradients, inducing Marangoni flow that drags particles towards aggregation; strong Brownian motion, used as source of fluctuations, opposes aggregation...
April 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28443519/atranorin-an-interesting-lichen-secondary-metabolite
#18
Elżbieta Studzińska-Sroka, Agnieszka Galanty, Wiesława Bylka
Atranorin, the compound with the depside structure, is one of the most common lichen secondary metabolites, characteristic for numerous lichen families but rarely found in some mosses and higher plants. Over the years various biological properties of atranorin were examined. This review summarises the studies on atranorin, focusing on a number of biological activities in different fields. The literature describes anti-inflammatory, analgesic, as well as wound healing, antibacterial, antifungal, cytotoxic, antioxidant, antiviral, and immunomodulatory activities of the depside...
April 24, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28443176/one-stage-anterolateral-debridement-bone-grafting-and-internal-fixation-for-treating-lumbosacral-tuberculosis
#19
Tao Zhang, Lihua Ma, Xu Lan, Ping Zhen, Shiyong Wang, Zhilin Li
STUDY DESIGN: Retrospective case series. PURPOSE: To investigate the clinical efficacy and feasibility of one-stage anterolateral debridement, bone grafting, and internal fixation for treating lumbosacral tuberculosis. OVERVIEW OF LITERATURE: There has been no consensus regarding the optimal means of treating lumbosacral tuberculosis. The one-stage anterolateral extraperitoneal approach for radical debridement, bone grafting, and internal fixation for treating lumbosacral tuberculosis is rare in literature...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28443175/the-versatile-approach-a-novel-single-incision-combined-with-anterior-and-posterior-approaches-for-decompression-and-instrumented-fusion-to-treat-tuberculosis-of-the-thoracic-spine
#20
Sudhir Kumar Srivastava, Rishi Anil Aggarwal, Sunil Krishna Bhosale, Kunal Roy, Pradip Sharad Nemade
STUDY DESIGN: Retrospective case series. PURPOSE: To describe a novel single incision that combines anterior and posterior approaches for decompression and instrumented fusion to treat tuberculosis of the thoracic spine and study the neurological and radiological outcomes. OVERVIEW OF LITERATURE: Tuberculosis of the spine remains a major health issue in many developing countries. The options for treating tuberculosis of the thoracic spine include the anterior, posterior, and combined approaches, each with its advantages and disadvantages...
April 2017: Asian Spine Journal
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