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https://www.readbyqxmd.com/read/29161640/aging-schwann-cells-mechanisms-implications-future-directions
#1
REVIEW
Michio Wendell Painter
The aging peripheral nervous system (PNS) is prone to a number of disorders, including the development of neuropathies and increased regenerative failure. Although the basic mechanisms of the aging PNS are still rather murky, recent work has revealed that 'old' Schwann cells acquire a number of dysfunctions in mammals. This review will assess our current knowledge about aging Schwann cells while emphasizing where gaps exist. Indeed, as our understanding of how these peripheral glia contribute to the development, maintenance and regeneration of the PNS becomes increasingly refined, we should also turn our attention to questions of escalating importance in our rapidly greying society: how do Schwann cells change with aging, how might these changes contribute to dysfunction and disease, and what, if anything, might this tell us about the aging central nervous system?...
November 18, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29161611/the-application-of-ion-mobility-mass-spectrometry-to-metabolomics
#2
REVIEW
Xing Zhang, Kevin Quinn, Charmion Cruickshank-Quinn, Richard Reisdorph, Nichole Reisdorph
Mass spectrometry-based metabolomics is being increasingly utilized in various research fields including investigating human diseases, nutrition, industrial applications, and plant/natural products studies. Although new analytical approaches have enhanced the performance of metabolomic analyses, significant challenges associated with throughput, metabolome coverage, and compound identification still exist. Ion mobility mass spectrometry offers great potential for improving throughput and depth of coverage in metabolomics experiments...
November 18, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/29161488/identifying-trypanosoma-cruzi-discreet-typing-units-in-triatomines-collected-in-different-natural-regions-of-per%C3%A3%C2%BA
#3
Carlos P Padilla, Uriel Alvarado, Gladis Ventura, Deysi Luna-Caipo, Marcial Suárez, José R Tuñoque, Nancy Ruelas-Llerena, Luis A Fachín, Alina Huiza, Lizandro Gonzáles, Julio César Carranza, Gustavo Adolfo Vallejo, Gustavo Adolfo Vallejo, Abraham G Cáceres, Abraham G Cáceres
INTRODUCTION: Trypanosoma cruzi has been divided by international consensus into six discrete typing units (DTU): TcI, TcII, TcIII, TcIV, TcV y TcVI. The factors determining the dynamics of T. cruzi genotypes vector transmission of Chagas' disease in the different geographical regions of Perú are still unknown. OBJECTIVE: To detect and type T. cruzi DTUs from the faeces of seven species of triatomines (Panstrongylus chinai, P. geniculatus, P. herreri, Rhodnius robustus, R...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29161325/the-mechanisms-of-humic-substances-self-assembly-with-biological-molecules-the-case-study-of-the-prion-protein
#4
Gabriele Giachin, Ridvan Nepravishta, Walter Mandaliti, Sonia Melino, Alja Margon, Denis Scaini, Pierluigi Mazzei, Alessandro Piccolo, Giuseppe Legname, Maurizio Paci, Liviana Leita
Humic substances (HS) are the largest constituent of soil organic matter and are considered as a key component of the terrestrial ecosystem. HS may facilitate the transport of organic and inorganic molecules, as well as the sorption interactions with environmentally relevant proteins such as prions. Prions enter the environment through shedding from live hosts, facilitating a sustained incidence of animal prion diseases such as Chronic Wasting Disease and scrapie in cervid and ovine populations, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/29161076/obesity-and-metabolic-abnormalities-in-chronic-obstructive-pulmonary-disease
#5
Emiel F M Wouters
Chronic obstructive pulmonary disease (COPD) and obesity are major causes of morbidity and mortality worldwide, and a relationship between COPD and obesity is increasingly recognized. The nature and underlying mechanisms of the link between obesity and COPD are still largely unknown. Obesity, and abdominal adiposity in particular, is linked to metabolic syndrome. Hypertension, hyperglycemia, and abdominal adiposity seem to be the most prevalent components of metabolic syndrome in COPD. Adipose tissues function as a source of a variety of signaling molecules in the pathobiology of respiratory diseases...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160496/supported-self-care-for-children-and-adolescents-with-chronic-disease-and-their-families
#6
Leiliane Teixeira Bento Fernandes, Vanessa Medeiros da Nóbrega, Maria Elizabete de Amorim Silva, Amanda Narciso Machado, Neusa Collet
OBJECTIVE: analyze the scientific production between 2006 and 2015 on strategies for supported self-care by children and adolescents with chronic disease and their families. METHOD: integrative review of the literature conducted July and August 2016 in the databases: BDENF, LILACS, IBECS, ADOLEC, MEDLINE/PubMed and SCIELO. The 27 selected studies were analyzed and categorized into the five pillars of supported self-care: evaluation, counseling, agreement, care and accompaniment...
November 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29160445/epidemiological-profile-of-tuberculosis-in-s%C3%A3-o-paulo-municipality-from-2006-to-2013
#7
Priscila Fernanda Porto Scaff Pinto, Cássio Silveira, Maria Josefa Penon Rujula, Francisco Chiaravalloti, Manoel Carlos Sampaio de Almeida Ribeiro
BACKGROUND: Tuberculosis is a serious public health problem that still persists in the world and in Brazil. The municipality of São Paulo, Brazil, is among the prioritized ones in the country for disease control. OBJECTIVE: To describe the epidemiological profile of all new tuberculosis cases in São Paulo municipality reported between the years 2006 and 2013. METHODS: The variables selected for the study were: socioeconomic, demographic and clinical-epidemiologic obtained through the online information system TB-WEB...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29160110/peroxiredoxin6-a-multitask-antioxidant-enzyme-involved-in-the-pathophysiology-of-chronic-non-communicable-diseases
#8
Francesca Pacifici, David Della-Morte, Barbara Capuani, Donatella Pastore, Alfonso Bellia, Paolo Sbraccia, Nicola Di Daniele, Renato Lauro, Davide Lauro
SIGNIFICANCE: Chronic Non-Communicable Diseases (NCDs) are the leading causes of disability and death worldwide. NCDs mainly comprise diabetes mellitus, cardiovascular diseases, chronic obstructive pulmonary disease (COPD), cancer, and neurological degenerative diseases, which kill more than 80% of population, especially elderlies, worldwide. Recent Advances: Several recent theories established NCDs as multifactorial diseases, where a combination of genetic, epigenetic and environmental factors contributes to their pathogenesis...
November 21, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29160079/a-comprehensive-mass-spectrometric-survey-of-streptococcus-pyogenes-subcellular-proteomes
#9
Laura Wilk, Lotta Happonen, Johan Malmström, Heiko Herwald
Streptococcus pyogenes is a major global health burden causing a wide variety of diseases. As a vaccine against this bacterium is still lacking, vaccine candidates or antimicrobial therapies are urgently needed. Here, we use an invasive and clinical relevant streptococcal M1 serotype in order to characterise the bacterial proteome in-depth. An elaborate fractionation technique is employed to separate the different cell fractions followed by shotgun mass spectrometry analysis, allowing us to confirm the expression of nearly two thirds (1022) of the 1690 open reading frames predicted for the streptococcal M1 reference proteome...
November 21, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29160049/lower-irisin-levels-in-coronary-artery-disease-a-meta-analysis
#10
Wenwen Guo, Baihui Zhang, Xia Wang
INTRODUCTION: Irisin is a newly discovered myokine, which is involved in energy metabolism and associated with "browning" of the white adipose tissue, obesity, diabetes mellitus and metabolic syndrome. It's still uncertain that whether irisin level is associated with coronary artery disease. The purpose of this study is to explore the relationship between irisin levels and coronary artery disease. EVIDENCE ACQUISITION: A search of PubMed, MEDLINE, Elsevier Science Direct, Springer, Web of Science and China National Knowledge Infrastructure (CNKI) for studies published from 2000 to 2017 was undertaken to identify relevant studies...
November 20, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29160047/neoatherosclerosis-from-basic-principles-to-intravascular-imaging
#11
Philipp Nicol, Erion Xhepa, Dmitry Bozhko, Michael Joner
Development of new atherosclerotic lesions within the neointima of stented vessels has been recognized as a novel disease manifestation of atherosclerosis (neoatherosclerosis), often manifesting as in-stent restenosis (ISR) or in-stent thrombosis (ST). The pathobiology of this entity is still not fully understood and definite diagnosis is challenging owing to limitations in resolution of contemporary intravascular imaging modalities and lack of consequent histopathology correlation studies. Yet, intravascular imaging has emerged as the gold standard for the diagnosis of in-stent pathologies, the most routinely used modalities being intravascular ultrasound (IVUS) and optical coherence tomography (OCT)...
November 20, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29159964/blocking-antibodies-induced-by-allergen-specific-immunotherapy-ameliorate-allergic-airway-disease-in-a-human-mouse-chimeric-model
#12
Caterina Vizzardelli, Miriam Gindl, Simone Roos, Christian Möbs, Birgit Nagl, Felix Zimmann, Veronika Sexl, Lukas Kenner, Alina Neunkirchner, Gerhard J Zlabinger, Winfried F Pickl, Wolfgang Pfützner, Barbara Bohle
BACKGROUND: Allergen-specific immunotherapy (AIT) induces specific blocking antibodies (Ab) which are claimed to prevent IgE-mediated reactions to allergens. Additionally, AIT modulates cellular responses to allergens, e.g. by desensitizing effector cells, inducing regulatory T and B lymphocytes and immune deviation. It is still enigmatic which of these mechanisms mediate(s) clinical tolerance. We sought to address the role of AIT-induced blocking Ab separately from cellular responses in a chimeric human/mouse model of respiratory allergy...
November 21, 2017: Allergy
https://www.readbyqxmd.com/read/29159875/renal-hypoxia-in-kidney-disease-cause-or-consequence
#13
REVIEW
Connie P C Ow, Jennifer P Ngo, Md Mahbub Ullah, Lucinda M Hilliard, Roger G Evans
Tissue hypoxia has been proposed as an important factor in the pathophysiology of both chronic kidney disease and acute kidney injury, initiating and propagating a vicious cycle of tubular injury, vascular rarefaction, and fibrosis and thus exacerbation of hypoxia. Here, we critically evaluate this proposition by systematically reviewing the literature relevant to the following six questions: (1) Is kidney disease always associated with tissue hypoxia? (2) Does tissue hypoxia drive signaling cascades that lead to tissue damage and dysfunction? (3) Does tissue hypoxia per se lead to kidney disease? (4) Does tissue hypoxia precede pathology? (5) Does tissue hypoxia co-localize with pathology? (6) Does prevention of tissue hypoxia prevent kidney disease? We conclude that tissue hypoxia is a common feature of both acute kidney injury and chronic kidney disease...
November 21, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29159834/linc00473-antagonizes-the-tumour-suppressor-mir-195-to-mediate-the-pathogenesis-of-wilms-tumour-via-ikk%C3%AE
#14
Shibo Zhu, Wen Fu, Liyu Zhang, Kai Fu, Jinhua Hu, Wei Jia, Guochang Liu
OBJECTIVES: Although dramatic improvements of overall survival has achieved in patients with favourable histology Wilms tumour, disease recurrence is still the main cause of cancer-related death in childhood. Long non-coding RNAs (lncRNAs) as oncogenes or tumour suppressors are dysregulated during carcinogenesis. However, the role of lncRNAs in the pathogenesis of Wilms tumour is unknown. Here, an lncRNA LINC00473 signature that functioned as oncogene was identified in Wilms tumour. METHODS: Wilms tumour (n = 15) and relative normal tissues were collected...
November 20, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29159757/correlation-between-postoperative-early-recurrence-of-hepatocellular-carcinoma-and-mesenchymal-circulating-tumor-cells-in-peripheral-blood
#15
Zhong Wang, Lei Luo, Yuan Cheng, Guolin He, Bangjian Peng, Yi Gao, Ze-Sheng Jiang, MingXin Pan
BACKGROUND: Circulating tumor cells (CTCs) have been actively studied for their functions in hepatocellular carcinoma (HCC) recurrence. However, the relationship between circulating tumor cells subtypes and hepatocellular carcinoma recurrence is still unclear. METHODS: CTCs were collected from the peripheral blood of 62 postoperative HCC patients. The CTCs were isolated with a filtration-based method. Multiplex fluorescence in situ hybridization was used to characterize the CTCs based on mRNA expression levels of epithelial and mesenchymal markers...
November 20, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29159742/validation-of-the-recent-psogi-pathological-classification-of-pseudomyxoma-peritonei-in-a-single-center-series-of-265-patients-treated-by-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy
#16
Dario Baratti, Shigeki Kusamura, Massimo Milione, Federica Bruno, Marcello Guaglio, Marcello Deraco
BACKGROUND: Controversies still persist regarding the terminology and pathologic classification of appendiceal mucinous neoplasms and associated pseudomyxoma peritonei (PMP). We assessed reproducibility and prognostic significance of the classification recently proposed by the Peritoneal Surface Oncology Group International (PSOGI). METHODS: A prospective database of 265 PMP patients uniformly treated by cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) from 1995 to 2017 was reviewed...
November 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29159500/comparative-analysis-of-molecular-activity-in-dermal-mesenchymal-stem-cells-from-different-passages
#17
Xinhua Li, Junqin Li, Xincheng Zhao, Qiang Wang, Xiaohong Yang, Yueai Cheng, Min Zhou, Gang Wang, Erle Dang, Xiaoli Yang, Ruixia Hou, Peng An, Guohua Yin, Kaiming Zhang
Mesenchymal stem cells (MSCs) are used for tissue regeneration in several pathological conditions, including autoimmune diseases. However, the optimal sources and culture requirements for these cells are still under investigation. Here, we compared mRNA expression in dermal MSCs (DMSCs) at passage (P) 3 and P5 to provide a reference for future studies related to DMSCs expansion. In normal DMSCs, the expression of three of eight genes associated with basic cellular activity were different at P5 compared to that at P3: PLCB4 and SYTL2 were upregulated by 4...
November 20, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29159471/evidence-for-genetic-overlap-between-adult-onset-still-s-disease-and-hereditary-periodic-fever-syndromes
#18
R Sighart, J Rech, A Hueber, N Blank, S Löhr, A Reis, H Sticht, U Hüffmeier
OBJECTIVE: Adult onset Still's disease (AOSD) is a severe, autoimmune disease that can be challenging to treat with conventional therapeutics and biologicals in a considerable number of cases. Therefore, there is a high need to understand its pathogenesis better. As major clinical symptoms overlap between AOSD and hereditary periodic fever syndromes (HPFS), we analysed four known HPFS genes in AOSD. METHODS: We performed Sanger sequencing and quantitative analysis of all coding regions of MEFV, TNFRSF1A, MVK and NLRP3 in 40 AOSD patients...
November 20, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29158993/antimicrobial-consumption-on-austrian-dairy-farms-an-observational-study-of-udder-disease-treatments-based-on-veterinary-medication-records
#19
Clair L Firth, Annemarie Käsbohrer, Corina Schleicher, Klemens Fuchs, Christa Egger-Danner, Martin Mayerhofer, Hermann Schobesberger, Josef Köfer, Walter Obritzhauser
Background: Antimicrobial use in livestock production is an important contemporary issue, which is of public interest worldwide. Antimicrobials are not freely available to Austrian farmers and can only be administered to livestock by veterinarians, or by farmers who are trained members of the Animal Health Service. Since 2015, veterinarians have been required by law to report antimicrobials dispensed to farmers for use in food-producing animals. The study presented here went further than the statutory framework, and collected data on antimicrobials dispensed to farmers and those administered by veterinarians...
2017: PeerJ
https://www.readbyqxmd.com/read/29158990/increased-risk-of-periodontitis-in-patients-with-psoriatic-disease-a-nationwide-population-based-retrospective-cohort-study
#20
Ni-Yu Su, Jing-Yang Huang, Chien-Jen Hu, Hui-Chieh Yu, Yu-Chao Chang
Aims: Periodontitis and psoriatic disease, including psoriasis (PS) and psoriatic arthritis (PsA), share the common risk factors and co-morbidities. However, the risk of periodontitis in patients with psoriatic disease still needs further investigation. This study was a nationwide population-based retrospective cohort study assessing the risk of periodontitis from psoriatic disease exposure. Materials and Methods: Patients with newly diagnosed psoriatic disease from 2003 to 2012 were identified from the Taiwanese National Health Insurance Research Database...
2017: PeerJ
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