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https://www.readbyqxmd.com/read/28636132/trpc1-and-trpc3-dependent-ca-2-signaling-in-mouse-cortical-astrocytes-affects-injury-evoked-astrogliosis-in-vivo
#1
Thabet Belkacemi, Alexander Niermann, Laura Hofmann, Ulrich Wissenbach, Lutz Birnbaumer, Petra Leidinger, Christina Backes, Eckart Meese, Andreas Keller, Xianshu Bai, Anja Scheller, Frank Kirchhoff, Stephan E Philipp, Petra Weissgerber, Veit Flockerzi, Andreas Beck
Following brain injury astrocytes change into a reactive state, proliferate and grow into the site of lesion, a process called astrogliosis, initiated and regulated by changes in cytoplasmic Ca(2+) . Transient receptor potential canonical (TRPC) channels may contribute to Ca(2+) influx but their presence and possible function in astrocytes is not known. By RT-PCR and RNA sequencing we identified transcripts of Trpc1, Trpc2, Trpc3, and Trpc4 in FACS-sorted glutamate aspartate transporter (GLAST)-positive cultured mouse cortical astrocytes and subcloned full-length Trpc1 and Trpc3 cDNAs from these cells...
June 21, 2017: Glia
https://www.readbyqxmd.com/read/28632140/thermal-stability-and-rheological-properties-of-the-non-stick-caf1-biomaterial
#2
Yakup Ulusu, Gema Dura, Helen Waller, Matthew Benning, David Fulton, Jeremy Lakey, Daniel Thomas Peters
The ability to culture cells in three dimensions has many applications, from drug discovery to wound healing. 3D cell culture methods often require appropriate scaffolds that mimic the cellular environments of different tissue types. The choice of material from which these scaffolds are made is of paramount importance, as its properties will define the manner in which cells interact with the scaffold. Caf1 is a protein polymer that is secreted from its host organism, Yersinia pestis, to enable escape from phagocytosis...
June 20, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28632033/overexpression-of-alk5-induces-human-tenon-s-capsule-fibroblasts-transdifferentiation-and-fibrosis-in-vitro
#3
Shu-Hao Fu, Hui-Ying Wang, Jia-Ying Zhang, Hui-Min Shi, Nan Zhang, Wen Ye, Yi-Qin Xiao
PURPOSE: To investigate the involvement of activin receptor-like kinase 5 (ALK5) in human Tenon's capsule fibroblasts (HTFs) transdifferentiation and fibrosis. METHODS: (1) Cultured HTFs were treated with transforming growth factor beta 1 (TGF-β1) at different concentrations for different durations, mRNA expression of ALK5 and plasminogen activator inhibitor-1 (PAI-1) was measured by quantitative polymerase chain reaction (PCR) while protein expression of ALK5, α-smooth muscle actin (α-SMA), and extracellular matrix deposition including fibronectin (FN) and collagen I (Col1) was assessed by western blot...
February 28, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28629000/formulation-and-in-vitro-efficacy-of-antifungal-mucoadhesive-polymeric-matrices-for-the-delivery-of-miconazole-nitrate
#4
G Tejada, G N Piccirilli, M Sortino, C J Salomón, M C Lamas, D Leonardi
Oral candidiasis is the most common opportunistic infection affecting patients with the human immunodeficiency virus. Miconazole buccal tablets or miconazole gel are approved for the treatment of oropharyngeal candidiasis. However, buccal films present more flexibility and also offer protection for the wounded mucosa, reducing pain. Due to their small size and thickness, buccal films may improve patients' compliance, compared to tablets. Additionally, they may increase the relatively short residence time on the mucosa of oral gels, which are easily removed by saliva...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628777/effects-of-adipose-stem-cell-sheets-on-colon-anastomotic-leakage-in-an-experimental-model-proof-of-principle
#5
Panithi Sukho, Geesien S A Boersema, Abigael Cohen, Nicole Kops, Johan F Lange, Jolle Kirpensteijn, Jan Willem Hesselink, Yvonne M Bastiaansen-Jenniskens, Femke Verseijden
The most dreaded complication of colorectal surgery is anastomotic leakage. Adipose tissue-derived stem cell sheets (ASC sheets) prepared from temperature-responsive culture surfaces can be easily transplanted onto tissues. These sheets are proposed to improve cell transplant efficiency and enhance wound healing. The aim of this study was to investigate whether application of ASC sheets could prevent leakage of sutured colorectal anastomoses. Insufficient suturing of colorectal anastomoses was performed in Wistar rats to create a colorectal anastomotic leakage model...
June 9, 2017: Biomaterials
https://www.readbyqxmd.com/read/28627623/p18-peptide-a-functional-fragment-of-pigment-epithelial-derived-factor-inhibits-angiogenesis-in-hepatocellular-carcinoma-via-modulating-vegf-vegfr2-signalling-pathway
#6
Xin Wang, Peng Xiu, Fuhai Wang, Jingtao Zhong, Honglong Wei, Zongzhen Xu, Feng Liu, Jie Li
The P18 peptide is a functional fragment of pigment epithelial-derived factor (PEDF), which is an endogenic angiogenesis inhibitor. This study sought to determine the anti-angiogenic bioactivity of the P18 peptide in hepato-cellular carcinoma (HCC) and to elucidate the underlying mechanism. Xenograft tumour growth assays demonstrated the P18 peptide suppressed angiogenesis of HCC in vivo. Wound healing, Transwell and Matrigel-culture assays indicated that the P18 peptide inhibited the cell migration and tube formation of endothelial cells (ECs) in vitro...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28623940/clonorchis-sinensis-lysophospholipase-a-upregulates-il-25-expression-in-macrophages-as-a-potential-pathway-to-liver-fibrosis
#7
Lina Zhou, Mengchen Shi, Lu Zhao, Zhipeng Lin, Zeli Tang, Hengchang Sun, Tingjin Chen, Zhiyue Lv, Jin Xu, Yan Huang, Xinbing Yu
BACKGROUND: Liver fibrosis is an excessive wound-healing reaction that requires the participation of inflammatory cells and hepatic stellate cells (HSCs). The pathogenesis of liver fibrosis caused by viruses and alcohol has been well characterized, but the molecular mechanisms underlying liver fibrosis induced by the liver fluke Clonorchis sinensis are poorly understood. Lysophospholipase A (LysoPLA), which deacylates lysophospholipids, plays a critical role in mediating the virulence and pathogenesis of parasites and fungi; however, the roles of C...
June 17, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28622477/an-examination-of-factors-affecting-the-length-of-stay-in-a-palliative-care-center
#8
Metin Dincer, Kadriye Kahveci, Cihan Doger
BACKGROUND: With the increase in elderly population, life-threatening chronic diseases are increasing, simultaneously increasing the need for palliative care centers (PCCs). OBJECTIVES: To evaluate the factors affecting the length of stay (LOS) and discharge of patients from a PCC. METHODS: A retrospective scan was made of the records of patients followed up in the PCC between January 2013 and March 2016. A record was made of patient age, gender, diagnosis, conditions/comorbidities, Glasgow Coma Scale, Karnofsky Performance Scale, LOS, prognosis (exitus or surviving), percutaneous endoscopic gastrostomy (PEG), tracheostomy, mechanical ventilator, nutrition (total parenteral nutrition [TPN] or enteral nutrition), and the results of cultures taken during stay in PCCs (blood, tracheal aspirate, urine, rectal swab, wound)...
June 16, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28621713/gpe-promotes-the-proliferation-and-migration-of-mouse-embryonic-neural-stem-cells-and-their-progeny-in-vitro
#9
Cristina Almengló, Pablo Devesa, Jesús Devesa, Víctor M Arce
This study was designed to investigate a possible role of the N-terminal tripeptide of insulin-like growth factor-1 (IGF-I), Gly-Pro-Glu (GPE), physiologically generated in neurons following IGF-I-specific cleavage, in promoting neural regeneration after an injury. Primary cultures of mouse neural stem cells (NSCs), obtained from 13.5 Days post-conception (dpc) mouse embryos, were challenged with either GPE, growth hormone (GH), or GPE + GH and the effects on cell proliferation, migration, and survival were evaluated both under basal conditions and in response to a wound healing assay...
June 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28621325/the-oral-commensal-streptococcus-mitis-activates-the-aryl-hydrocarbon-receptor-in-human-oral-epithelial-cells
#10
Stian A Engen, Gro H Rørvik, Olav Schreurs, Inger Js Blix, Karl Schenck
Streptococcus mitis (S. mitis) is a pioneer commensal bacterial species colonizing many of the surfaces of the oral cavity in healthy individuals. Yet, not much information is available regarding its interaction with the host. We used examination of its transcriptional regulation in oral keratinocytes to elucidate some of its potential roles in the oral cavity. Transcription factor analysis of oral keratinocytes predicted S. mitis-mediated activation of aryl hydrocarbon receptor (AhR). Activation and functionality of AhR was confirmed through nuclear translocation determined by immunofluorescence microscopy and real-time polymerase chain reaction with reverse transcription analysis of CYP1A1, the hallmark gene for AhR activation...
June 16, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28618131/pharmacognosy-phytochemistry-and-pharmacological-properties-of-achillea-millefolium-l-a-review
#11
REVIEW
Sofi Imtiyaz Ali, B Gopalakrishnan, V Venkatesalu
Achillea millefoilum L. (Yarrow) is an important species of Asteraceae family with common utilization in traditional medicine of several cultures from Europe to Asia for the treatment of spasmodic gastrointestinal disorders, hepatobiliary, gynecological disorders, against inflammation and for wound healing. An extensive review of literature was made on A. millefoilum L. using ethno botanical text books, published articles in peer-reviewed journals, unpublished materials and scientific databases. The Plant List, International Plant Name Index and Kew Botanical Garden databases were used to authenticate the scientific names...
June 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28616060/early-recognition-of-methicillin-resistant-staphylococcus-aureus-surgical-site-infections-using-risk-and-protective-factors-identified-by-a-group-of-italian-surgeons-through-delphi-method
#12
G Sganga, C Tascini, E Sozio, S Colizza
BACKGROUND: Surgical site infections (SSIs) constitute a major clinical problem in terms of morbidity, mortality, duration of hospital stay, and overall costs. The bacterial pathogens implicated most frequently are Streptococcus pyogenes (S. pyogenes) and Staphylococcus aureus (S. aureus). The incidence of methicillin-resistant S. aureus (MRSA) SSIs is increasing significantly. Since these infections have a significant impact on hospital budgets and patients' health, their diagnosis must be anticipated and therapy improved...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28614782/macrophages-are-targets-of-retinoic-acid-signaling-during-the-wound-healing-process-after-thulium-laser-resection-of-the-prostate
#13
Dian-Jun Yu, Xing-Jie Wang, Yun-Feng Shi, Chen-Yi Jiang, Rui-Zhe Zhao, Yi-Ping Zhu, Li Chen, Yuan-Qing Yang, Xiao-Wen Sun, Shu-Jie Xia
BACKGROUND: The wound-healing process is very important for reducing complications after thulium laser resection of the prostate (TmLRP). The retinoic acid (RA) signaling pathway has been well studied in the wound-healing process of the skin and other organs. The goals of this study were to identify the role of RA signaling in the repair of the prostate after TmLRP and to investigate the molecular mechanism of this process. RESULTS: Retinoic acid receptors (RARs) were present in the prostate, and their expression was increased after TmLRP...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28606794/antifibrotic-actions-of-peroxisome-proliferator-activated-receptor-%C3%AE-ligands-in-corneal-fibroblasts-are-mediated-by-%C3%AE-catenin-regulated-pathways
#14
Kye-Im Jeon, Richard P Phipps, Patricia J Sime, Krystel R Huxlin
Wound healing after corneal injury typically involves fibrosis, with transforming growth factor β1 (TGF-β1) as one of its strongest mediators. A class of small molecules-peroxisome proliferator-activated receptor γ (PPARγ) ligands-exert potent antifibrotic effects in the cornea by blocking phosphorylation of p38 mitogen-activated protein kinase (MAPK). However, why this blocks fibrosis remains unknown. Herein, we show that PPARγ ligands (rosiglitazone, troglitazone, and 15-deoxy-Δ12,14-prostaglandin J2) decrease levels of β-catenin...
June 10, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28605543/dual-action-of-bacteriocin-plnc8-%C3%AE-%C3%AE-through-inhibition-of-porphyromonas-gingivalis-infection-and-promotion-of-cell-proliferation
#15
Torbjörn Bengtsson, Boxi Zhang, Robert Selegård, Emanuel Wiman, Daniel Aili, Hazem Khalaf
Periodontitis is a chronic inflammatory disease that is characterized by accumulation of pathogenic bacteria, including Porphyromonas gingivalis, in periodontal pockets. The lack of effective treatments has emphasized in an intense search for alternative methods to prevent bacterial colonization and disease progression. Bacteriocins are bacterially produced antimicrobial peptides gaining increased consideration as alternatives to traditional antibiotics. We show rapid permeabilization and aggregation of P. gingivalis by the two-peptide bacteriocin PLNC8 αβ...
June 12, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28605337/antitumor-effect-of-by-1-from-spent-broth-from-submerged-cultures-of-stout-camphor-medicinal-mushroom-taiwanofungus-camphoratus-higher-basidiomycetes-on-a549-adenocarcinoma-cells
#16
Wen-Han Wang, Li-Yuan Wang, Hai-Rui Yang, Ya-Ping Zhang, He-Nan Zhang, Hua Fan, Xiang-Li Zhao, Jing-Song Zhang, Wei Jia
By-1 was obtained from spent broth from submerged cultures of Taiwanofungus camphoratus. This report evaluates the effects of By-1 on plate clone formation, wound healing, cell cycle, activated caspase-3 expression, and ROS release in A549 lung cancer cells. The result of plate clone formation assay revealed that By-1 could dramatically inhibit the viability of A549 cells in vitro. The inhibitory effect of By-1 on cell migration was tested using a wound healing assay. Proliferation rates of A549 cells were significantly inhibited following exposure to By-1 (12...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28602859/fibroblast-fibronectin-patterning-and-network-formation-in-3d-fibrin-matrices
#17
Miguel Miron-Mendoza, Eric Graham, Sujal Manohar, W Matthew Petroll
PURPOSE: We previously reported that fibroblasts migrating within 3-D collagen matrices move independently, whereas fibroblasts within 3-D fibrin matrices form an interconnected network. Similar networks have been identified previously during in vivo corneal wound healing. In this study, we investigate the role of fibronectin in mediating this mechanism of collective cell spreading, migration and patterning. METHODS: To assess cell spreading, corneal fibroblasts were plated within fibrillar collagen or fibrin matrices...
June 7, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28602628/overexpression-of-fibulin-5-attenuates-burn-induced-inflammation-via-trpv1-cgrp-pathway
#18
Xiaoqian Hou, Hui Li, Chunhua Zhang, Junling Wang, Xiuli Li, Xin Li
Fibulin-5, a multifunctional extracellular matrix protein, is up-regulated in response to mechanical injury and can promote dermal wound healing. This study aimed to explore the role and mechanism of Fibulin-5 in the pathogenesis of post-burn inflammation in thermally-injured mice. Here, we found that Fibulin-5 was up-regulated in the dorsal root ganglion (DRG) of burn-injured mice. After nociceptive behavioral testing, DRG was isolated and cultured to detect the mechanism of Fibulin-5 in thermal injury models by recombinant adenovirus overexpressing Fibulin-5, RT-qPCR, Western Blot, ELISA, AP20187 (an activator of one kind of kinase phosphorylating the α subunit of eukaryotic initiation factor 2, eIF2α), capsaicin (an agonist of transient receptor potential vanilloid (TRPV)-1), and an anti-CGRP neutralizing antibody...
June 8, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28601875/activities-of-mscs-derived-from-transgenic-mice-seeded-on-adm-scaffolds-in-wound-healing-and-assessment-by-advanced-optical-techniques
#19
Ning Wang, Hanping Liu, Xuefeng Li, Qilei Zhang, Maosheng Chen, Ying Jin, Xiaoyuan Deng
BACKGROUND/AIMS: Bone marrow Mesenchymal stem cells (MSCs) are promising for promoting cutaneous wound healing through reinforcing cellular processes. We evaluated the effect of GFP-tagged MSCs transplantation on skin regeneration in excisional wounds in mice. METHODS: MSCs from GFP-labeled transgenic mice were co-cultured with acellular dermal matrix (ADM) scaffolds, and MSC-ADM scaffolds were transplanted into surgical skin wounds of BALB/c mice. After implantation, the survival and behavior of MSCs were examined by second harmonic generation and two-photon excitation fluorescence imaging, western blotting and DNA amplification and sequencing...
June 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28599847/development-of-wound-healing-models-to-study-tgf%C3%AE-3-s-effect-on-sma
#20
Sriniwas Sriram, Jennifer A Tran, Xiaoqing Guo, Audrey E K Hutcheon, Andrius Kazlauskas, James D Zieske
The goal of this study was to test the efficacy of transforming growth factor beta 3 (TGFβ3) in reducing α-smooth muscle actin (SMA) expression in two models-an ex vivo organ culture and an in vitro 3D cell construct-both of which closely mimic an in vivo environment. For the ex vivo organ culture system, a central 6.0 mm corneal keratectomy was performed on freshly excised rabbit globes The corneas were then excised, segregated into groups treated with 1.0 ng/ml TGFβ1 or β3 (T1 or T3, respectively), and cultured for 2 weeks...
June 6, 2017: Experimental Eye Research
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