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https://www.readbyqxmd.com/read/28918264/past-matrix-stiffness-primes-epithelial-cells-and-regulates-their-future-collective-migration-through-a-mechanical-memory
#1
Samila Nasrollahi, Christopher Walter, Andrew J Loza, Gregory V Schimizzi, Gregory D Longmore, Amit Pathak
During morphogenesis and cancer metastasis, grouped cells migrate through tissues of dissimilar stiffness. Although the influence of matrix stiffness on cellular mechanosensitivity and motility are well-recognized, it remains unknown whether these matrix-dependent cellular features persist after cells move to a new microenvironment. Here, we interrogate whether priming of epithelial cells by a given matrix stiffness influences their future collective migration on a different matrix - a property we refer to as the 'mechanical memory' of migratory cells...
September 8, 2017: Biomaterials
https://www.readbyqxmd.com/read/28918046/microrna-as-therapeutic-targets-for-chronic-wound-healing
#2
REVIEW
Eoghan J Mulholland, Nicholas Dunne, Helen O McCarthy
Wound healing is a highly complex biological process composed of three overlapping phases: inflammation, proliferation, and remodeling. Impairments at any one or more of these stages can lead to compromised healing. MicroRNAs (miRs) are non-coding RNAs that act as post-transcriptional regulators of multiple proteins and associated pathways. Thus, identification of the appropriate miR involved in the different phases of wound healing could reveal an effective third-generation genetic therapy in chronic wound care...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917974/cross-cultural-analysis-of-medicinal-plants-commonly-used-in-ethnoveterinary-practices-at-south-waziristan-agency-and-bajaur-agency-federally-administrated-tribal-areas-fata-pakistan
#3
Muhammad Abdul Aziz, Muhammad Adnan, Amir Hasan Khan, Muhammad Sufyan, Shahid Niaz Khan
ETHNOPHARMACOLOGICAL RELEVANCE: In remote areas, medicinal plants have an imperative role in curing various livestock's ailments. In Pakistan, people residing in remote areas including South Waziristan Agency and Bajaur Agency depend on traditional herbal remedies for treating their domestic animals. Medicinal plants are an important part of the medical system in these Agencies. The prime goal of the current study is to explore the ethnoveterinary practices in the two regions and discuss cross-cultural consensus on the use of medicinal plants...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28917539/hemagglutinin-specific-cd4-t-cell-responses-following-2009-ph1n1-inactivated-split-vaccine-inoculation-in-humans
#4
Shuguang Tan, Shihong Zhang, Bin Wu, Yingze Zhao, Wei Zhang, Min Han, Ying Wu, Guoli Shi, Yingxia Liu, Jinghua Yan, Guizhen Wu, Hua Wang, George F Gao, Fengcai Zhu, William J Liu
Influenza A virus remains a major threat to public health, and the inactivated split-virus vaccine is the most prevalent vaccine used worldwide. However, our knowledge about cellular immune responses to the inactivated influenza virus vaccine and its correlation with humoral responses are yet limited, which has restricted our understanding of the vaccine's protective mechanisms. Herein, in two clinical trials, T-cell responses specific for both previously identified human leucocyte antigen (HLA)-I-restricted epitopes from influenza virus and hemagglutinin (HA) protein were longitudinally investigated before, during, and after a two-dose vaccination with the inactivated 2009 pandemic H1N1 (2009-pH1N1) vaccine...
September 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28917531/hollow-microneedle-mediated-intradermal-delivery-of-model-vaccine-antigen-loaded-plga-nanoparticles-elicits-protective-t-cell-mediated-immunity-to-an-intracellular-bacterium
#5
Anne Marit de Groot, Guangsheng Du, Juha Mönkäre, Anouk C M Platteel, Femke Broere, Joke A Bouwstra, Alice J A M Sijts
The skin is an attractive organ for immunization due to the presence of a large number of epidermal and dermal antigen-presenting cells. Hollow microneedles allow for precise and non-invasive intradermal delivery of vaccines. In this study, ovalbumin (OVA)-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles with and without TLR3 agonist poly(I:C) were prepared and administered intradermally by hollow microneedles. The capacity of the PLGA nanoparticles to induce a cytotoxic T cell response, contributing to protection against intracellular pathogens, was examined...
September 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28917247/the-optimism-surrounding-stereotactic-body-radiation-therapy-and-immunomodulation
#6
Hannah Tharmalingam, Peter J Hoskin
In recent years, rapidly evolving radiation techniques have enabled the precise delivery of very high doses of radiation to local targets with stereotactic ablative body radiotherapy (SABR). In addition to its direct cytotoxicity, radiation and in particular SABR has powerful immunomodulatory effects resulting in immunogenic cell death and potentiation of the anti-tumour immune response. However, due to the immunosuppressive nature of non-irradiated sites of metastases, radiotherapy alone is seldom sufficient to induce the systemic response required for distant tumour rejection...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917191/enhanced-arabidopsis-disease-resistance-against-botrytis-cinerea-induced-by-sulfur-dioxide
#7
Meizhao Xue, Huilan Yi
Sulfur dioxide (SO2) is a common air pollutant that has complex impacts on plants. The effect of prior exposure to 30mgm(-3) SO2 on defence against Botrytis cinerea (B. cinerea) in Arabidopsis thaliana and the possible mechanisms of action were investigated. The results indicated that pre-exposure to 30mgm(-3) SO2 resulted in significantly enhanced resistance to B. cinerea infection. SO2 pre-treatment significantly enhanced the activities of defence-related enzymes including phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), β-1,3-glucanase (BGL) and chitinase (CHI)...
September 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28916816/striking-diflubenzuron-resistance-in-culex-pipiens-the-prime-vector-of-west-nile-virus
#8
Linda Grigoraki, Arianna Puggioli, Konstantinos Mavridis, Vassilis Douris, Mario Montanari, Romeo Bellini, John Vontas
Culex pipiens mosquitoes cause severe nuisance and transmit human diseases including West Nile. Vector control by insecticides is the main tool to prevent these diseases and diflubenzuron is one of the most effective mosquito larvicides used in many places. Here, high levels of resistance were identified in Cx. pipiens from Italy, with a Resistance Ratio of 128 fold. The phenotype was associated with mutations at amino acid I1043 (I1043M and I1043L) of the Chitin synthase gene, which showed significantly higher frequency in bioassay survivors...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916743/comparative-analysis-reveals-regulatory-motifs-at-the-ains-ainr-pheromone-signaling-locus-of-vibrio-fischeri
#9
John H Kimbrough, Eric V Stabb
Vibrio fischeri uses the AinS/AinR pheromone-signaling system to control bioluminescence and other symbiotic colonization factors. The Ain system is thought to initiate cell-cell signaling at moderate cell densities and to prime the LuxI/LuxR signaling system. Here we compared and analyzed the ain locus from two V. fischeri strains and a Vibrio salmonicida strain to explore ain regulation. The ainS and ainR genes were predicted to constitute an operon, which we corroborated using RT-PCR. Comparisons between strains revealed a stark area of conservation across the ainS-ainR junction, including a large inverted repeat in ainR...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916440/white-matter-microstructure-within-the-superior-longitudinal-fasciculus-modulates-the-degree-of-response-conflict-indexed-by-n2-in-healthy-adults
#10
Shudan Gao, Peng Liu, Jialu Guo, Yuanqiang Zhu, Peng Liu, Jinbo Sun, Xuejuan Yang, Wei Qin
Response conflict can be induced by priming multiple responses competing for control of action in trials. The N2 is one functionally-related cognitive control index for response conflict. And yet the underlying whiter matter neural substrates of inter-individual difference in conflict N2 remain unclear. So the aim of present study was to address the white matter microstructure of the N2 responsible for conflict by directly relating the amplitude cost of the event-related potential (ERP) N2 component to diffusion tensor imaging (DTI) indices in healthy subjects...
September 12, 2017: Brain Research
https://www.readbyqxmd.com/read/28915826/acupuncture-lowering-blood-pressure-for-secondary-prevention-of-stroke-a-study-protocol-for-a-multicenter-randomized-controlled-trial
#11
Yu-Zheng Du, Xin-Xin Gao, Cheng-Ting Wang, Hai-Zhen Zheng, Yun Lei, Meng-Han Wu, Xue-Min Shi, Hai-Peng Ban, Wen-Long Gu, Xiang-Gang Meng, Mao-Ti Wei, Chun-Xiao Hu
BACKGROUND: Stroke is the prime cause of morbidity and mortality in the general population, and hypertension will increase the recurrence and mortality of stroke. We report a protocol of a pragmatic randomized controlled trial (RCT) using blood pressure (BP)-lowering acupuncture add-on treatment to treat patients with hypertension and stroke. METHODS: This is a large-scale, multicenter, subject-, assessor- and analyst-blinded, pragmatic RCT. A total of 480 patients with hypertension and ischemic stroke will be randomly assigned to two groups: an experimental group and a control group...
September 15, 2017: Trials
https://www.readbyqxmd.com/read/28915511/children-s-comprehension-of-object-relative-sentences-it-s-extant-language-knowledge-that-matters-not-domain-general-working-memory
#12
Yazmin Ahmad Rusli, James W Montgomery
Purpose: The aim of this study was to determine whether extant language (lexical) knowledge or domain-general working memory is the better predictor of comprehension of object relative sentences for children with typical development. We hypothesized that extant language knowledge, not domain-general working memory, is the better predictor. Method: Fifty-three children (ages 9-11 years) completed a word-level verbal working-memory task, indexing extant language (lexical) knowledge; an analog nonverbal working-memory task, representing domain-general working memory; and a hybrid sentence comprehension task incorporating elements of both agent selection and cross-modal picture-priming paradigms...
September 15, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28915390/navy-and-black-bean-supplementation-primes-the-colonic-mucosal-microenvironment-to-improve-gut-health
#13
Jennifer M Monk, Dion Lepp, Wenqing Wu, K Peter Pauls, Lindsay E Robinson, Krista A Power
Common beans (Phaseolus vulgaris L.) are enriched in non-digestible fermentable carbohydrates and phenolic compounds that can modulate the colonic microenvironment (microbiota and host epithelial barrier) to improve gut health. In a comprehensive assessment of the impact of two commonly consumed bean varieties (differing in levels and types of phenolic compounds) within the colonic microenvironment, C57Bl/6 mice were fed diets supplemented with 20% cooked navy bean (NB) or black bean (BB) flours or an isocaloric basal diet control (BD) for 3 weeks...
August 10, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28914770/silicon-and-nitrate-differentially-modulate-the-symbiotic-performances-of-healthy-and-virus-infected-bradyrhizobium-nodulated-cowpea-vigna-unguiculata-yardlong-bean-v-unguiculata-subsp-sesquipedalis-and-mung-bean-v-radiata
#14
Maria Luisa Izaguirre-Mayoral, Miriam Brito, Bikash Baral, Mario José Garrido
The effects of 2 mM silicon (Si) and 10 mM KNO₃ (N)-prime signals for plant resistance to pathogens-were analyzed in healthy and Cowpea chlorotic mottle virus (CCMV) or Cowpea mild mottle virus (CMMV)-infected Bradyrhizobium-nodulated cowpea, yardlong bean and mung bean plants. In healthy plants of the three Vigna taxa, nodulation and growth were promoted in the order of Si + N > N > Si > controls. In the case of healthy cowpea and yardlong bean, the addition of Si and N decreased ureide and α-amino acids (AA) contents in the nodules and leaves in the order of Si + N> N > Si > controls...
September 15, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28914473/ethers-on-si-001-a-prime-example-for-the-common-ground-between-surface-science-and-molecular-organic-chemistry
#15
Lisa Pecher, Slimane Laref, Marc Raupach, Ralf Ewald Tonner
Using computational chemistry, we show that the adsorption of ether molecules on Si(001) under ultra-high vacuum conditions can be understood with textbook organic chemistry. The two-step reaction mechanism of (1) dative bond formation between the ether oxygen and a Lewis acidic surface atom and (2) a nucleophilic attack of a nearby Lewis basic surface atom is analysed in detail and found to mirror the acid-catalysed ether cleavage in solution. The O-Si dative bond is found to be the strongest of its kind and reactivity from this state defies the Bell-Evans-Polanyi principle...
September 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28914161/a-net-of-friends-investigating-friendship-by-integrating-attachment-theory-and-social-network-analysis
#16
Omri Gillath, Gery C Karantzas, Emre Selcuk
The current article focuses on attachment style-an individual difference widely studied in the field of close relationships-and its application to the study of social networks. Specifically, we investigated whether attachment style predicts perception and management of social networks. In Study 1, we examined the associations of attachment style with perceptions of network tie strength and multiplexity. In Studies 2a and 2b, we investigated the association between attachment style and network management skills (initiating, maintaining, and dissolving ties) and whether network management skills mediated the associations of attachment style with network tie strength and multiplexity...
July 1, 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28913800/wheat-genetic-transformation-using-mature-embryos-as-explants
#17
Harsh Chauhan, Paramjit Khurana
Feeding the growing population utilizing the limited agricultural resources remains a great challenge. Plant biotechnology plays a vital role in crop improvement by incorporating desired quality traits, tolerance to abiotic stresses and resistance to biotic stresses, which are otherwise tough to achieve by conventional plant breeding methodologies. Genetic engineering is a powerful tool to develop desired traits in selected crops to make the crops suitable for future demand and environment. For genetic engineering of crops like wheat, the development of efficient transformation and regeneration systems has always been a prime requirement...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28912777/class-a-cpg-oligonucleotide-priming-rescues-mice-from-septic-shock-via-activation-of-platelet-activating-factor-acetylhydrolase
#18
Yoshinari Yamamoto, Ryu Sugimura, Takafumi Watanabe, Suguru Shigemori, Takuma Okajima, Shireen Nigar, Fu Namai, Takashi Sato, Tasuku Ogita, Takeshi Shimosato
Sepsis is a life-threatening, overwhelming immune response to infection with high morbidity and mortality. Inflammatory response and blood clotting are caused by sepsis, which induces serious organ damage and death from shock. As a mechanism of pathogenesis, platelet-activating factor (PAF) induces excessive inflammatory responses and blood clotting. In this study, we demonstrate that a Class A CpG oligodeoxynucleotide (CpG-A1585) strongly induced PAF acetylhydrolase, which generates lyso-PAF. CpG-A1585 rescued mice from acute lethal shock and decreased fibrin deposition, a hallmark of PAF-induced disseminated intravascular coagulation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28912746/the-role-of-slow-speech-amplitude-envelope-for-speech-processing-and-reading-development
#19
Paula Ríos-López, Monika T Molnar, Mikel Lizarazu, Marie Lallier
This study examined the putative link between the entrainment to the slow rhythmic structure of speech, speech intelligibility and reading by means of a behavioral paradigm. Two groups of 20 children (Grades 2 and 5) were asked to recall a pseudoword embedded in sentences presented either in quiet or noisy listening conditions. Half of the sentences were primed with their syllabic and prosodic amplitude envelope to determine whether a boost in auditory entrainment to these speech features enhanced pseudoword intelligibility...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28912533/oral-fibroblasts-modulate-the-macrophage-response-to-bacterial-challenge
#20
Rinat Tzach-Nahman, Rizan Nashef, Omer Fleissig, Aharon Palmon, Lior Shapira, Asaf Wilensky, Gabriel Nussbaum
Tissue damage in chronic periodontal disease is driven by the host response to a dysbiotic microbiota, and not by bacteria directly. Among chronic inflammatory diseases of the oral cavity, inflammation and tissue damage around dental implants (peri-implantitis) is emerging as a major clinical challenge, since it is more severe and less responsive to treatment compared to inflammation around natural teeth. We tested whether oral fibroblasts from the periodontal ligament (PDLF), which are present around natural teeth but not around dental implants, actively regulate inflammatory responses to bacterial stimulation...
September 14, 2017: Scientific Reports
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