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https://www.readbyqxmd.com/read/28342779/suppression-of-calpain-expression-by-nsaids-is-associated-with-inhibition-of-cell-migration-in-rat-duodenum
#1
Kristopher Silver, A Littlejohn, Laurel Thomas, Bhupinder Bawa, James D Lillich
Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used for the alleviation of pain and inflammation, but these drugs are also associated with a suite of negative side effects. Gastrointestinal (GI) toxicity is particularly concerning since it affects an estimated 70% of individuals taking NSAIDs routinely, and evidence suggests the majority of toxicity is occurring in the small intestine. Traditionally, NSAID-induced GI toxicity has been associated with indiscriminate inhibition of cyclooxygenase isoforms, but other mechanisms, including inhibition of cell migration, intestinal restitution, and wound healing, are likely to contribute to toxicity...
March 22, 2017: Toxicology
https://www.readbyqxmd.com/read/28342759/activation-of-epithelial-stat1-by-interleukin-28-controls-mucosal-healing-in-mice-with-colitis-and-is-increased-in-mucosa-of-patients-with-inflammatory-bowel-disease
#2
Mircea T Chiriac, Barbara Buchen, Alexandra Wandersee, Gheorghe Hundorfean, Claudia Günther, Yvonne Bourjau, Sean E Doyle, Benjamin Frey, Arif B Ekici, Christian Büttner, Benno Weigmann, Raja Atreya, Stefan Wirtz, Christoph Becker, Jürgen Siebler, Markus F Neurath
BACKGROUND & AIMS: We investigated the roles of interleukin 28A (also called IL28A or interferon lambda 2) in intestinal epithelial cell (IEC) activation, studying its effects in mouse models of inflammatory bowel diseases (IBD) and intestinal mucosal healing. METHODS: Colitis was induced in C57BL/6JCrl mice (controls), mice with intestinal epithelial cell-specific disruption of Stat1 (Stat1IEC-KO), mice with disruption of the interferon lambda receptor 1 gene (Il28ra-/-), and mice with disruption of the interferon regulatory factor 3 gene (Irf3-/-), with or without disruption of Irf7 (Irf7-/-)...
March 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28342310/silver-nanoparticles-synthesized-and-coated-with-pectin-an-ideal-compromise-for-anti-bacterial-and-anti-biofilm-action-combined-with-wound-healing-properties
#3
P Pallavicini, C R Arciola, F Bertoglio, S Curtosi, G Dacarro, A D'Agostino, F Ferrari, D Merli, C Milanese, S Rossi, A Taglietti, M Tenci, L Visai
The synthesis of Ag nanoparticles from Ag(+) has been investigated, with pectin acting both as reductant and coating.∼100% Ag(+) to Ag(0) one-pot conversion was obtained, yielding p-AgNP, i.e. an aqueous solution of pectin-coated spherical Ag nanoparticles (d=8.0±2.6nm), with a<1ppm concentration of free Ag(+) cation. Despite the low free Ag(+) concentration and low Ag(+) release with time, the nature of the coating allows p-AgNP to exert excellent antibacterial and antibiofilm actions, comparable to those of ionic silver, tested on E...
March 18, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28341788/discovery-and-pharmacological-characterization-of-jnj-42756493-erdafitinib-a-functionally-selective-small-molecule-fgfr-family-inhibitor
#4
Timothy P S Perera, Eleonora Jovcheva, Laurence Mevellec, Jorge Vialard, Desiree De Lange, Tinne Verhulst, Caroline Paulussen, Kelly Van De Ven, Peter King, Eddy Freyne, David C Rees, Matthew Squires, Gordon Saxty, Martin Page, Ron Gilissen, Christopher W Murray, George Ward, Neil T Thompson, David R Newell, Na Cheng, Liang Xie, Jennifer Yang, Suso J Platero, Jayaprakash D Karkera, Christopher Moy, Patrick Angibaud, Sylvie Laquerre, Matthew V Lorenzi
Fibroblast growth factor (FGF) signaling plays critical roles in key biological processes ranging from embryogenesis to wound healing and has strong links to several hallmarks of cancer. Genetic alterations in FGF receptor (FGFR) family members are associated with increased tumor growth, metastasis, angiogenesis and decreased survival. JNJ-42756493, erdafitinib, is an orally active small molecule with potent tyrosine kinase inhibitory activity against all four FGFR family members and selectivity versus other highly related kinases...
March 24, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28341191/-bacillus-cereus-endocarditis-and-a-probable-cutaneous-gateway
#5
S Soudet, C Becquart, F Dezoteux, K Faure, D Staumont-Salle, E Delaporte
BACKGROUND: Bacillus cereus is a ubiquitous telluric organism. B. cereus endocarditis is a rare condition seen mostly in prosthetic heart valves and among intravenous drug users. We report a new case of a patient without risk factors and with a good clinical outcome not requiring valve replacement. CASE REPORT: In October 2014, a 50-year-old woman was referred to the dermatology department of Lille University Hospital for lower-limb wounds developing 6 months earlier...
January 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28337286/lps-induces-huvec-angiogenesis-in-vitro-through-mir-146a-mediated-tgf-%C3%AE-1-inhibition
#6
Yize Li, Huayu Zhu, Xu Wei, Heng Li, Zhicao Yu, Hongmei Zhang, Wenchao Liu
Angiogenesis is an essential process for tissue growth and embryo development. However, inflammation, abnormal wound healing, vascular diseases, and tumor development and progression can result from inappropriate angiogenesis. Lipopolysaccharide (LPS) can activate various cells and alter endothelium function and angiogenesis. This study investigated the underlying molecular events involved in LPS-induced angiogenesis and revealed a novel strategy for controlling abnormal angiogenesis. LPS treatment promoted wound healing and tube formation in human umbilical vein endothelial cell (HUVEC) cultures and induced their expression of miR-146a...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337222/a-conditioned-medium-of-umbilical-cord-mesenchymal-stem-cells-overexpressing-wnt7a-promotes-wound-repair-and-regeneration-of-hair-follicles-in-mice
#7
Liang Dong, Haojie Hao, Jiejie Liu, Dongdong Ti, Chuan Tong, Qian Hou, Meirong Li, Jingxi Zheng, Gang Liu, Xiaobing Fu, Weidong Han
Mesenchymal stem cells (MSCs) can affect the microenvironment of a wound and thereby accelerate wound healing. Wnt proteins act as key mediators of skin development and participate in the formation of skin appendages such as hair. The mechanisms of action of MSCs and Wnt proteins on skin wounds are largely unknown. Here, we prepared a Wnt7a-containing conditioned medium (Wnt-CM) from the supernatant of cultured human umbilical cord-MSCs (UC-MSCs) overexpressing Wnt7a in order to examine the effects of this CM on cutaneous healing...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28335186/ex-vivo-tissues-engineering-modeling-for-reconstructive-surgery-using-human-adult-adipose-stem-cells-and-polymeric-nanostructured-matrix
#8
Francesco Morena, Chiara Argentati, Eleonora Calzoni, Marino Cordellini, Carla Emiliani, Francesco D'Angelo, Sabata Martino
The major challenge for stem cell translation regenerative medicine is the regeneration of damaged tissues by creating biological substitutes capable of recapitulating the missing function in the recipient host. Therefore, the current paradigm of tissue engineering strategies is the combination of a selected stem cell type, based on their capability to differentiate toward committed cell lineages, and a biomaterial, that, due to own characteristics (e.g., chemical, electric, mechanical property, nano-topography, and nanostructured molecular components), could serve as active scaffold to generate a bio-hybrid tissue/organ...
March 31, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28326930/effects-of-jwh015-in-cytokine-secretion-in-primary-human-keratinocytes-and-fibroblasts-and-its-suitability-for-topical-transdermal-delivery
#9
Alicia Bort, Perla A Alvarado-Vazquez, Carolina Moracho-Vilrriales, Kristopher G Virga, Giuseppe Gumina, Alfonso Romero-Sandoval, Scott Asbill
Background JWH015 is a cannabinoid (CB) receptor type 2 agonist that produces immunomodulatory effects. Since skin cells play a key role in inflammatory conditions and tissue repair, we investigated the ability of JWH015 to promote an anti-inflammatory and pro-wound healing phenotype in human primary skin cells. Methods Human primary keratinocytes and fibroblasts were stimulated with lipopolysaccharide. The mRNA expression of cannabinoid receptors was determined using RT-PCR. The effects of JWH015 (0.05, 0...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28324043/reduced-transforming-growth-factor-beta-activity-in-the-endometrium-of-women-with-heavy-menstrual-bleeding
#10
J A Maybin, L Boswell, V J Young, W C Duncan, Hod Critchley
Context: Heavy menstrual bleeding (HMB) is common and incapacitating. Aberrant menstrual endometrial repair may result in HMB. The TGFβ superfamily contributes to tissue repair, but its role in HMB is unknown. Objective: We hypothesised that TGFβ1 is important for endometrial repair and women with HMB have aberrant TGFβ1 activity at menses. Participants/Setting: Endometrial biopsies were collected from women and menstrual blood loss objectively measured (HMB >80ml/cycle, normal menstrual bleeding, NMB <80ml)...
January 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323799/a-prospective-randomized-trial-to-assess-oral-versus-intravenous-antibiotics-for-the-treatment-of-postoperative-wound-infection-after-extremity-fractures-poviv-study
#11
William T Obremskey, Andrew H Schmidt, Robert V OʼToole, Jennifer DeSanto, Saam Morshed, Paul Tornetta, Clinton K Murray, Clifford B Jones, Daniel O Scharfstein, Tara J Taylor, Anthony R Carlini, Renan C Castillo
Patients surgically treated for infection after extremity fractures are typically discharged with a 6- to 12-week antibiotic regimen. Intravenous (IV) antibiotics are associated with significant cost and potential complications of deep vein thrombosis, line clotting, and sepsis. Many of the pathogens that cause musculoskeletal infection have both oral (PO) and IV antibiotic options with adequate bioavailability and antibacterial effect, yet IV antibiotics remain the standard of care absent evidence that PO options are clinically as efficacious...
April 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28322778/down-regulation-of-cyclin-dependent-kinase-4-and-mapk-through-estrogen-receptor-mediated-cell-cycle-arrest-in-human-breast-cancer-induced-by-gold-nanoparticle-tagged-toxin-protein-nkct1
#12
Tanmoy Bhowmik, Antony Gomes
AIM: The aim of this study was to determine whether gold nanoparticles conjugated cytotoxic protein NKCT1 (GNP-NKCT1) acted through the estrogen receptor mediated pathway in MCF-7 cells and to establish the MAPK and PI3k/Akt signal transduction pathway. METHODS: Apoptosis was done by flow cytometry. BrdU incorporation and nuclear proliferating antigen was measured by flow cytometry. Wound healing assay along with matrigel chamber invasion and migration was done...
March 18, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28321572/the-extent-of-environmental-and-body-contamination-through-aerosols-by-hydro-surgical-debridement-in-the-lumbar-spine
#13
David Putzer, Ricarda Lechner, Debora Coraca-Huber, Astrid Mayr, Michael Nogler, Martin Thaler
INTRODUCTION: Surgical site infections occur in 1-6% of spinal surgeries. Effective treatment includes early diagnosis, parenteral antibiotics and early surgical debridement of the wound surface. MATERIALS AND METHODS: On a human cadaver, we executed a complete hydro-surgery debridement including a full surgical setup such as draping. The irrigation fluid was artificially contaminated with Staphylococcus aureus (ATCC 6538). Surveillance cultures were used to detect environmental and body contamination of the surgical team...
March 20, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28320052/soft-tissue-infections-from-fish-spike-wounds-normal-commensal-bacteria-are-more-common-than-marine-pathogens
#14
Hannah Collins, Kin Mun Lee, Paul T-Y Cheng, Sarah Hulme
BACKGROUND: A fish spike injury can be sustained by anyone handling fish; during fishing, meal preparation or in retail. Case reports of fish spikes inoculating victims with virulent marine-specific pathogens and causing systemic illness led us to question whether empirical treatment of these injuries with amoxicillin and clavulanic acid is adequate. METHODS: This 2-year prospective observational study was conducted at Middlemore Hospital, Auckland, New Zealand...
March 20, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28319828/genistein-affects-proliferation-and-migration-of-bovine-oviductal-epithelial-cells
#15
Daniela C García, Pablo A Valdecantos, Dora C Miceli, Mariela Roldán-Olarte
Genistein is one of the most abundant isoflavones in soybean. This molecule induces cell cycle arrest and apoptosis in different normal and cancer cells. Genistein has been of considerable interest due to its adverse effects on bovine reproduction, altering estrous cycle, implantation and fetal development and producing subfertility or infertility. The objective of this work was to study the effects of genistein on the expression of selected genes involved in the regulation of cell cycle and apoptosis. Primary cultures of bovine oviductal epithelial cells (BOEC) were treated with different genistein concentrations (0...
March 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28319313/co-creating-a-peer-education-program-to-improve-skin-health-in-older-people-from-diverse-communities-an-innovation-in-health-promotion
#16
Rajna Ogrin, Kathleen Brasher, Jessica Occleston, Jennifer Byrne
OBJECTIVE: Chronic wounds, debilitating and costly to manage, are more common in older people. Prevention is possible through improving skin health. We developed, implemented and evaluated an innovative health promotion program to improve skin health of older adults. METHODS: A one-hour, peer education program was co-created and delivered to culturally diverse community-dwelling older people. A mixed-methods evaluation approach comprised objective measures of skin health and barrier function at commencement and six weeks posteducation, and focus groups posteducation...
March 20, 2017: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/28317802/port-site-infections-by-nontuberculous-mycobacterium-a-retrospective-clinico-microbiological-study
#17
Roumi Ghosh, Soumen Das, Asmita De, Harish Kela, Makhan Lal Saha, Prasanta Kumar Maiti
BACKGROUND: Port-site infection (PSI) is a prevailing, chronic, nagging, treatment refractory complication of laparoscopic surgery (LS). It neutralizes the advantages of minimally invasive surgery and increases morbidity, treatment cost of patient, leading to loss of confidence on operating surgeon. PSIs are preventable with appropriate preoperative, intraoperative, and postoperative measures. Atypical mycobacterium is most commonly associated with nonhealing postlaparoscopic wound infections, causing outbreaks or sporadic cases worldwide...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28316399/lernaea-cyprinacea-infection-in-a-new-host-puntius-pulchellus-in-intensive-culture-system-and-its-control-by-doramectin
#18
K P Hemaprasanth, N Sridhar, M R Raghuanth
The present study explored the susceptibility of Puntius pulchellus subadults to Lernaea cyprinacea infection subsequent upon their first introduction to an intensive culture system that had a previous history of Lernaea infection and evaluated the efficacy of doramectin against the parasite. All the P. pulchellus introduced to the culture pond got infected demonstrating 100 % susceptibility of this species to Lernaea infection. Pathological changes caused by the parasite as evidenced by the extensive hemorrhage and tissue necrosis of the host at the point of parasite attachment was most severe in P...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316168/-advances-in-the-research-of-effects-of-exosomes-derived-from-stem-cells-on-wound-repair
#19
M Y Li, D W Liu, Y G Mao
Exosomes are nano-vesicles released by many kinds of cells. Exosomes play a significant role in cell-to-cell communication and substance transportation through direct effect of signaling molecules on the cell membrane surface, intracellular regulation of cellular content during membrane fusion, or regulation of release of various bioactive molecules. Several studies have reported that culture supernatant of stem cells has some related exosomes to take part in wound repair. The secretion of exosomes is depended on the source and the physiological and pathological condition of deriving cells...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28303029/tmf-and-glycitin-act-synergistically-on-keratinocytes-and-fibroblasts-to-promote-wound-healing-and-anti-scarring-activity
#20
Ga Young Seo, Yoongho Lim, Dongsoo Koh, Jung Sik Huh, Changlim Hyun, Young Mee Kim, Moonjae Cho
Keratinocyte-fibroblast interactions are critical for skin repair after injury. During the proliferative phase of wound healing, proliferation, migration and differentiation of these cells are the major mechanisms leading to tissue remodeling. We have previously reported that glycitin, a major soy isoflavone, stimulates dermal fibroblast proliferation; and the phytochemical, 4',6,7-trimethoxyisoflavone (TMF), induces migration of HaCaT keratinocyte cells. We therefore investigated whether these compounds display synergistic effects on skin cells during wound healing in vitro and in vivo...
March 17, 2017: Experimental & Molecular Medicine
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