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https://www.readbyqxmd.com/read/28101569/resveratrol-inhibits-adventitial-fibroblast-proliferation-and-induces-cell-apoptosis-through-the-sirt1-pathway
#1
Lin Ling, Shaohua Gu, Yan Cheng
Atherosclerosis is one of the most important causes of cardiovascular disease and studies have showed that adventitial fibroblasts, which are considered to be the most common cell type of the vascular adventitia, are involved in the development of early atherosclerotic plaques. Resveratrol is a plant polyphenolic compound confirmed to have anti‑atherosclerotic and cardioprotective effects. The aim of the present study was to investigate the effects of resveratrol on adventitial fibroblasts in vitro and to clarify the underlying mechanism...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28101549/palladium-ii-catalyzed-direct-o-alkenylation-of-2-arylquinazolinones-with-n-tosylhydrazones-an-efficient-route-to-o-alkenylquinazolines
#2
Rajaka Lingayya, Mari Vellakkaran, Kommu Nagaiah, Prabhakar Rao Tadikamalla, Jagadeesh Babu Nanubolu
An efficient Pd(ii)-catalyzed direct O-alkenylation of 2-arylquinazolinones with simple ketone-derived N-tosylhydrazones is reported. In this reaction, O-alkenylquinazolines were obtained in good yields, with excellent functional group tolerance. Pd-carbene migratory insertion is proposed as the key step in the reaction mechanism.
January 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28101127/mental-health-and-trauma-in-asylum-seekers-landing-in-sicily-in-2015-a-descriptive-study-of-neglected-invisible-wounds
#3
Anna Crepet, Francesco Rita, Anthony Reid, Wilma Van den Boogaard, Pina Deiana, Gaia Quaranta, Aurelia Barbieri, Francesco Bongiorno, Stefano Di Carlo
BACKGROUND: In 2015, Italy was the second most common point of entry for asylum seekers into Europe after Greece. The vast majority embarked from war-torn Libya; 80,000 people claimed asylum that year. Their medical conditions were assessed on arrival but their mental health needs were not addressed in any way, despite the likelihood of serious trauma before and during migration. Médecins sans Frontières (MSF), in agreement with the Italian Ministry of Health, provided mental health (MH) assessment and care for recently-landed asylum seekers in Sicily...
2017: Conflict and Health
https://www.readbyqxmd.com/read/28099917/cleavage-of-fibulin-2-by-the-aggrecanases-adamts-4-and-adamts-5-contributes-to-the-tumorigenic-potential-of-breast-cancer-cells
#4
Tania Fontanil, Saúl Álvarez-Teijeiro, M Ángeles Villaronga, Yamina Mohamedi, Laura Solares, Angela Moncada-Pazos, José A Vega, Olivia García-Suárez, Marcos Pérez-Basterrechea, Juana M García-Pedrero, Alvaro J Obaya, Santiago Cal
Fibulin-2 participates in the assembly of extracellular matrix components through interactions with multiple ligands and promotes contacts between cells and their surrounding environment. Consequently, identification of processes that could lead to an altered Fibulin-2 could have a major impact not only in the maintenance of tissue architecture and morphogenesis but also in pathological situations including cancer. Herein, we have investigated the ability of the secreted metalloproteases ADAMTS-4 and ADAMTS-5 to digest Fibulin-2...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099380/predicting-appendiceal-tumors-among-patients-with-appendicitis
#5
Tyler J Loftus, Steven L Raymond, George A Sarosi, Chasen A Croft, R Stephen Smith, Philip A Efron, Frederick A Moore, Scott C Brakenridge, Alicia M Mohr, Janeen R Jordan
BACKGROUND: As non-operative management of appendicitis gains popularity, vigilance for appendiceal tumors becomes increasingly important. We hypothesized that among patients presenting with acute appendicitis, those with advanced age, multiple comorbidities, atypical presentation, and complicated appendicitis would be more likely to have underlying appendiceal tumors. METHODS: We performed a 4-year retrospective cohort analysis of 677 consecutive adult patients who underwent appendectomy for appendicitis at our tertiary care center...
January 17, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28099366/does-the-distribution-pattern-of-brain-metastases-during-braf-inhibitor-therapy-reflect-phenotype-switching
#6
Silvia A Haueis, Pascale Kränzlin, Joanna Mangana, Phil F Cheng, Mirjana Urosevic-Maiwald, Ralph P Braun, Mitchell P Levesque, Reinhard Dummer, Simone M Goldinger
Brain metastases (brain mets) are frequent in metastatic melanoma patients. The aim of this study was to investigate the morphology and progression pattern of brain mets in melanoma patients treated with BRAF inhibitors (BRAFi) compared with patients who did not receive targeted therapy (BRAFi group and control group). The number and size of brain mets were compared between a baseline and a comparative MRI at progression. The number of brain mets was grouped into seven number classes (N=1-4, N=5-10, N=11-20, N=21-30, N=31-40, N=41-50, and N>50) and its difference was reported as the change of class that occurred...
January 17, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28099076/extension-of-the-avian-host-range-of-collyriclosis-in-europe
#7
Stamatios A Tahas, Anastasia Diakou, Monika Dressel, Samuel Frei, Fábia M Pinto Azevedo, Maria V Mena Casero, Carla Maia, Paula Grest, Felix Grimm, Jiljí Sitko, Ivan Literak
We describe cases of collyriclosis in apodiform and passeriform birds in Portugal, Switzerland, and Germany. We extend the host range of Collyriculm faba to include apodiform birds ( Apus apus , Apus melba , and Apus pallidus ) and the passerine Sitta europaea (Eurasian Nuthatch). Infections varied in severity from an incidental finding to severe debilitation and death. The infection route remains unclear with the apparent absence from Germany, Portugal, and Switzerland of the first intermediate host of C. faba, the aquatic gastropod Bythinella austriaca, implying that other organisms might be involved in the parasite's life cycle...
January 18, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28098990/chemo-and-regio-selectively-distal-heteroaryl-ipso-migration-general-protocol-for-heteroarylation-of-unactivated-alkenes
#8
Zhen Wu, Dongping Wang, Yuan Liu, Leitao Huan, Chen Zhu
Herein we report a novel, general protocol for distal heteroaryl ipso-migration and its application to the elusive heteroarylation of unactivated alkenes. A set of nitrogen-containing heteroaryl groups showcase the migratory aptitude. This reaction provides a variety of fluoroalkyl functionalized heteroarenes under mild reaction conditions. This is the first report of a difunctionalization of unactivated alkenes with distal heteroaryl migration.
January 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28098546/reoccurrence-of-avian-influenza-a-h5n2-virus-clade-2-3-4-4-in-wild-birds-alaska-usa-2016
#9
Dong-Hun Lee, Mia K Torchetti, Mary Lea Killian, Thomas J DeLiberto, David E Swayne
We report reoccurrence of highly pathogenic avian influenza A(H5N2) virus clade 2.3.4.4 in a wild mallard in Alaska, USA, in August 2016. Identification of this virus in a migratory species confirms low-frequency persistence in North America and the potential for re-dissemination of the virus during the 2016 fall migration.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098415/intracranial-aav-ifn-%C3%AE-gene-therapy-eliminates-invasive-xenograft-glioblastoma-and-improves-survival-in-orthotopic-syngeneic-murine-model
#10
Dwijit GuhaSarkar, James Neiswender, Qin Su, Guangping Gao, Miguel Sena-Esteves
The highly invasive property of glioblastoma (GBM) cells and genetic heterogeneity are largely responsible for tumor recurrence after the current standard-of-care treatment and thus a direct cause of death. Previously, we have shown that intracranial interferon-beta (IFN-β) gene therapy by locally administered adeno-associated viral vectors (AAV) successfully treats noninvasive orthotopic glioblastoma models. Here, we extend these findings by testing this approach in invasive human GBM xenograft and syngeneic mouse models...
November 9, 2016: Molecular Oncology
https://www.readbyqxmd.com/read/28098340/inhibitory-effect-of-blue-light-emitting-diode-on-migration-and-invasion-of-cancer-cells
#11
Phil-Sun Oh, Hyun-Soo Kim, Eun-Mi Kim, Hyosook Hwang, Hyang Hwa Ryu, SeokTae Lim, Myung-Hee Sohn, Hwan-Jeong Jeong
The aim of this study was to determine the effects and molecular mechanism of blue light emitting diode (LED) in tumor cells. A migration and invasion assay for the metastatic behavior of mouse colon cancer CT-26 and human fibrosarcoma HT-1080 cells was performed. Cancer cell migration-related proteins were identified by obtaining a 2-dimensional gel electrophoresis (2-DE) in total cellular protein profile of blue LED-irradiated cancer cells, followed by matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) analysis of proteins...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28096484/evolutionary-dynamics-of-pandemic-methicillin-sensitive-staphylococcus-aureus-st398-and-its-international-spread-via-routes-of-human-migration
#12
Anne-Catrin Uhlemann, Paul R McAdam, Sean B Sullivan, Justin R Knox, Hossein Khiabanian, Raul Rabadan, Peter R Davies, J Ross Fitzgerald, Franklin D Lowy
: Methicillin-susceptible Staphylococcus aureus (MSSA) accounts for the majority of S. aureus infections globally, and yet surprisingly little is known about its clonal evolution. We applied comparative whole-genome sequencing (WGS) analyses to epidemiologically and geographically diverse ST398-MSSA, a pandemic lineage affecting both humans and livestock. Bayesian phylogenetic analysis predicted divergence of human-associated ST398-MSSA ~40 years ago. Isolates from Midwestern pigs and veterinarians differed substantially from those in New York City (NYC)...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28096456/antibody-conjugated-dna-based-nanocarriers-intercalated-with-doxorubicin-eliminate-myofibroblasts-in-explants-of-human-lens-tissue
#13
Jacquelyn Gerhart, Marvin Greenbaum, Lou Casta, Anthony Clemente, Keith Mathers, Robert Getts, Mindy George-Weinstein
Posterior capsule opacification (PCO) occurs in some adults and most children following cataract surgery. The fibrotic form of PCO arises, in part, from migratory, contractile myofibroblasts that deform the lens capsule and impair vision. In short-term cultures of human anterior lens tissue, myofibroblasts emerge from Myo/Nog cells that are identified with the G8 monoclonal antibody and by their expression of the MyoD transcription factor and bone morphogenetic protein inhibitor noggin. In this study, we tested the hypothesis that targeted depletion of Myo/Nog cells with the G8 mAb conjugated to three-dimensional DNA nanocarriers intercalated with Doxorubicin (G8:3DNA:Dox) would prevent the accumulation of myofibroblasts in long-term, serum and growth factor free cultures of human lens tissue obtained by capsulorhexis...
January 17, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28096212/planar-cell-polarity-in-moving-cells-think-globally-act-locally
#14
REVIEW
Crystal F Davey, Cecilia B Moens
The planar cell polarity (PCP) pathway is best known for its role in polarizing epithelial cells within the plane of a tissue but it also plays a role in a range of cell migration events during development. The mechanism by which the PCP pathway polarizes stationary epithelial cells is well characterized, but how PCP signaling functions to regulate more dynamic cell behaviors during directed cell migration is much less understood. Here, we review recent discoveries regarding the localization of PCP proteins in migrating cells and their impact on the cell biology of collective and individual cell migratory behaviors...
January 15, 2017: Development
https://www.readbyqxmd.com/read/28096092/initiation-of-acute-graft-versus-host-disease-by-angiogenesis
#15
Katarina Riesner, Yu Shi, Angela Jacobi, Martin Kraeter, Martina Kalupa, Aleixandria McGearey, Sarah Mertlitz, Steffen Cordes, Jens-Florian Schrezenmeier, Jörg Mengwasser, Sabine Westphal, Daniel Perez-Hernandez, Clemens Schmitt, Gunnar Dittmar, Jochen Guck, Olaf Penack
The inhibition of inflammation-associated angiogenesis ameliorates inflammatory diseases by reducing the recruitment of tissue infiltrating leukocytes. However, it is not known if angiogenesis has an active role during the initiation of inflammation or if it is merely a secondary effect occurring in response to stimuli by tissue infiltrating leukocytes. Here we show that angiogenesis precedes leukocyte infiltration in experimental models of inflammatory bowel disease and acute graft-versus-host disease (GVHD)...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28095951/simulated-microgravity-effects-on-nonsmall-cell-lung-cancer-cell-proliferation-and-migration
#16
Jae Ho Chung, Chi Bum Ahn, Kuk Hui Son, Eunjue Yi, Ho Sung Son, Han-Sung Kim, Sung Ho Lee
BACKGROUND: Despite improvements in medical technology, lung cancer metastasis remains a global health problem. The effects of microgravity on cell morphology, structure, functions, and their mechanisms have been widely studied; however, the biological effects of simulated microgravity on the interaction between cells and its eventual influence on the characteristics of cancer cells are yet to be discovered. We examined the effects of simulated microgravity on the metastatic ability of different lung cancer cells using a random positioning machine...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28095668/recovery-of-oswaldotrema-nacinovici-from-whimbrels-aves-in-korea
#17
Young-Il Lee, Ok-Sik Chung, Min Seo
Adult specimens of Oswaldotrema nacinovici (Digenea: Philophthalmidae) have been first identified in Korea from 2 migratory birds (whimbrels, Numenius phaeopus) which were found dead at a western seashore area near Gunsan. The worms were recovered in the intestine of these birds. The worms were morphologically characterized by a large ventral sucker in comparison to the oral sucker, an external seminal vesicle extending beyond the posterior margin of the ventral sucker, and conspicuous uterine seminal receptacle...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28095644/xenopus-as-a-model-organism-to-study-heterotrimeric-g-protein-pathway-during-collective-cell-migration-of-neural-crest
#18
REVIEW
G Toro-Tapia, S Villaseca, J I Leal, A Beyer, J Fuentealba, M Torrejón
Collective cell migration is essential in many fundamental aspects of normal development, like morphogenesis, organ formation, wound healing and immune responses, as well as in the etiology of severe pathologies, like cancer metastasis. In spite of the huge amount of data accumulated on cell migration, such a complex process involves many molecular actors, some of which still remain to be functionally characterized. One of these signals is the heterotrimeric G-protein pathway that has been studied mainly in gastrulation movements...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28094783/a-novel-spontaneous-model-of-epithelial-mesenchymal-transition-emt-using-a-primary-prostate-cancer-derived-cell-line-demonstrating-distinct-stem-like-characteristics
#19
Naomi Harner-Foreman, Jayakumar Vadakekolathu, Stéphanie A Laversin, Morgan G Mathieu, Stephen Reeder, A Graham Pockley, Robert C Rees, David J Boocock
Cells acquire the invasive and migratory properties necessary for the invasion-metastasis cascade and the establishment of aggressive, metastatic disease by reactivating a latent embryonic programme: epithelial-to-mesenchymal transition (EMT). Herein, we report the development of a new, spontaneous model of EMT which involves four phenotypically distinct clones derived from a primary tumour-derived human prostate cancer cell line (OPCT-1), and its use to explore relationships between EMT and the generation of cancer stem cells (CSCs) in prostate cancer...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093769/low-migratory-connectivity-is-common-in-long-distance-migrant-birds
#20
Tom Finch, Simon Butler, Aldina Franco, Will Cresswell
1.Estimating how much long-distance migrant populations spread out and mix during the non-breeding season (migratory connectivity) is essential for understanding and predicting population dynamics in the face of global change. 2.We quantify variation in population spread and inter-population mixing in long-distance, terrestrial migrant land-bird populations (712 individuals from 98 populations of 45 species, from tagging studies in the Neotropic and Afro-Palearctic flyways). We evaluate the Mantel test as a metric of migratory connectivity, and explore the extent to which variance in population spread can be explained simply by geography...
January 16, 2017: Journal of Animal Ecology
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