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https://www.readbyqxmd.com/read/28821806/longitudinal-study-of-changes-in-%C3%AE-%C3%AE-t-cells-and-cd4-t-cells-upon-asymptomatic-malaria-infection-in-indonesian-children
#1
Sanne E de Jong, Vera E R Asscher, Linda J Wammes, Aprilianto E Wiria, Firdaus Hamid, Erliyani Sartono, Taniawati Supali, Hermelijn H Smits, Adrian J F Luty, Maria Yazdanbakhsh
Both γδ T cells and CD4(+) T cells have been implicated in immunity to malaria, but their association with natural gain or loss of infection has not been studied before. Therefore, we followed up asymptomatic children living in an area endemic for malaria in Indonesia for 21 months. The percentage of γδ T cells was related to both current and previous infection, with higher percentages in infected than uninfected children and declining after infections resolve. Infected children also had higher levels of Th1 and Th17 cells, lower levels of CD25(Hi) FOXP3(+) regulatory T cells (Tregs), but similar levels of Th2 cells as compared to uninfected children...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821790/potential-health-risk-of-heavy-metals-in-the-leather-manufacturing-industries-in-sialkot-pakistan
#2
Muhammad Junaid, Muhammad Zaffar Hashmi, Yu-Mei Tang, Riffat Naseem Malik, De-Sheng Pei
This is a systematical report on the potential health risk of heavy metals from the leather industries in Pakistan based on multiple biological matrices of the exposed workers and indoor dust samples. The adverse impacts of heavy metals on the oxidative enzyme and their risks to workers' health were also explored. Our results indicated that the level of Cr in indoor industrial dust was more than twice, compared to the background household dust. Blood, urine and hair samples of exposed workers showed significantly high concentrations of heavy metals, compared to those in the control group...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821183/improvement-of-the-threespine-stickleback-genome-using-a-hi-c-based-proximity-guided-assembly
#3
Catherine L Peichel, Shawn T Sullivan, Ivan Liachko, Michael A White
Scaffolding genomes into complete chromosome assemblies remains challenging even with the rapidly increasing sequence coverage generated by current next-generation sequence technologies. Even with scaffolding information, many genome assemblies remain incomplete. The genome of the threespine stickleback (Gasterosteus aculeatus), a fish model system in evolutionary genetics and genomics, is not completely assembled despite scaffolding with high-density linkage maps. Here, we first test the ability of a Hi-C based proximity-guided assembly (PGA) to perform a de novo genome assembly from relatively short contigs...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28818856/deletion-of-nf-%C3%AE%C2%BAb-rela-in-angiotensin-ii-sensitive-mesenchymal-cells-blocks-aortic-vascular-inflammation-and-abdominal-aortic-aneurysm-formation
#4
Talha Ijaz, Hong Sun, Irina V Pinchuk, Dianna M Milewicz, Ronald G Tilton, Allan R Brasier
OBJECTIVE: Infusion of angiotensin II (Ang II) induces extracellular matrix remodeling and inflammation resulting in abdominal aortic aneurysms (AAAs) in normolipidemic mice. Although Ang II activates mesenchymal cells in the media and adventitia to become fibrogenic, the sentinel role of this mesenchymal population in modulating the inflammatory response and aneurysms is not known. We test the hypothesis that these fibrogenic mesenchymal cells play a critical role in Ang II-induced aortic wall vascular inflammation and AAA formation...
August 17, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28818794/comprehensive-and-comparative-ecotoxicological-and-human-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-reef-surface-sediments-and-coastal-seawaters-of-iranian-coral-islands-persian-gulf
#5
Ali Ranjbar Jafarabadi, Alireza Riyahi Bakhtiari, Amirhossein Shadmehri Toosi
The concentration and spatial distribution along with ecotoxicological risk of 30 polycyclic aromatic hydrocarbons were investigated in the reef surface sediments (RSSs) and coastal seawater (CSW) of ten coral Islands from the Persian Gulf, Iran, in January 2015. For all sampling sites, assessment of ecological risk was undertaken using several approaches. Mean concentration of ∑30PAHs varied between 70 and 884ngL(-l) with an overall mean value of 464ngL(-l) in the CSW, while the RSS ranged from 274 to 1098ngg(-1)dw with a total average of 619ngg(-1)dw...
August 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28817563/assessment-of-risk-of-dengue-and-yellow-fever-virus-transmission-in-three-major-kenyan-cities-based-on-stegomyia-indices
#6
Sheila B Agha, David P Tchouassi, Armanda D S Bastos, Rosemary Sang
Dengue (DEN) and yellow fever (YF) are re-emerging in East Africa, with contributing drivers to this trend being unplanned urbanization and increasingly adaptable anthropophilic Aedes (Stegomyia) vectors. Entomological risk assessment of these diseases remains scarce for much of East Africa and Kenya even in the dengue fever-prone urban coastal areas. Focusing on major urban cities of Kenya, we compared DEN and YF risk in Kilifi County (DEN-outbreak-prone), and Kisumu and Nairobi Counties (no documented DEN outbreaks)...
August 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28815950/ribosome-profiling-a-hi-def-monitor-for-protein-synthesis-at-the-genome-wide-scale
#7
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28815292/concentrations-and-exposure-evaluation-of-metals-in-diverse-food-items-from-chengdu-china
#8
Rong Wang, Bifeng Zhong, Lu Pi, Fuyu Xie, Mengqin Chen, Sanglan Ding, Shijun Su, Zhi Li, Zhiwei Gan
A total of 520 food samples belonging to 29 food types and 63 drinking water were collected in Chengdu market of China in 2014 to investigate the concentrations of 11 metals, and to assess the related exposure to the local consumers by estimating the hazard quotient and carcinogenic risk (CR). The results showed that metals concentrations in drinking water were below the limit values suggested by the Ministry of Health of the People's Republic of China, and FAO/WHO (Food and Agriculture Organization of the United Nations/World Health Organization)...
August 16, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28811734/differential-response-to-exercise-in-african-americans-with-high-levels-of-inflammation
#9
Jan Kretzschmar, Dianne M Babbitt, Keith M Diaz, Deborah L Feairheller, Kathleen M Sturgeon, Amanda M Perkins-Ball, Sheara T Williamson, Chenyi Ling, Heather Grimm, Michael D Brown
PURPOSE: Systemic inflammation, measured by C-reactive protein (CRP), is an important risk factor for cardiovascular disease (CVD) and mortality. We investigated whether aerobic exercise training (AEXT) affects African Americans with high inflammation (HI) the same way it does African Americans with low inflammation (LI) in terms of CVD risk factors. METHODS: 23 African Americans with CRP levels <3 mg/L (LI) and 14 African Americans with CRP ≥3 mg/L (HI) underwent six months of AEXT...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28810929/the-impact-of-age-and-gut-microbiota-on-th17-and-tfh-cells-in-k-bxn-autoimmune-arthritis
#10
Fei Teng, Krysta M Felix, C Pierce Bradley, Debdut Naskar, Heqing Ma, Walid A Raslan, Hsin-Jung Joyce Wu
BACKGROUND: Age is an important risk factor for rheumatoid arthritis (RA), which often develops in middle age. However, how age-associated changes in immunity impact RA is poorly understood. Gut microbiota are known to be involved in the pathogenesis of RA, but the effects of microbiota in older subjects remain mostly unknown. METHODS: We used segmented filamentous bacteria (SFB), a gut commensal species with immunomodulatory effects, and K/BxN mice, a T cell receptor (TCR) transgenic model, to study the effect of age and microbiota on autoimmune arthritis...
August 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28809670/cardio-pulmonary-stethoscope-clinical-validation-with-heart-failure-and-hemodialysis-patients
#11
Magdy F Iskander, Todd B Seto, Ruthsenne Rg Perron, Eunjung Lim, Farhan Qazi
OBJECTIVE: The purpose of this study is to evaluate the accuracy of a noninvasive radiofrequency-based device, the Cardio-Pulmonary Stethoscope (CPS), to monitor heart and respiration rates and detect changes in lung water content in human experiments and clinical trials. METHODS: Three human populations (healthy subjects (n=4), heart failure (n=12) and hemodialysis (n=13) patients) were enrolled in this study. The study was conducted at the University of Hawaii and The Queen's Medical Center in Honolulu, HI...
August 14, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28807771/increase-of-intermediate-monocytes-in-gvhd-correlation-with-mdr1-th17-1-levels-and-the-effect-of-prednisolone-and-1%C3%AE-25-dihydroxyvitamin-d3
#12
Katharina Reinhardt-Heller, Insa Hirschberg, Peter Lang, Thomas Vogl, Rupert Handgretinger, Wolfgang A Bethge, Ursula Holzer
Graft-versus-host disease (GvHD) remains one of the major complications after allogeneic hematopoietic stem cell transplantation which is mainly treated with glucocorticoids such as prednisolone. In this study, the influence of monocyte subpopulations, prednisolone and 1α,25-Dihydroxyvitamin D3 on the induction of a pro-inflammatory subset of Th17 cells (MDR(+)Th17.1) characterized by CCR6(+)CXCR3(hi)CCR4(lo)CCR10(-)CD161(+) and stable expression of the multi-drug resistance protein type 1 (MDR1) was investigated...
August 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28806545/improvement-of-the-drought-indicators-system-in-the-j%C3%A3%C2%BAcar-river-basin-spain
#13
Tatiana Ortega-Gómez, Miguel A Pérez-Martín, Teodoro Estrela
Droughts are one of the gravest natural threats currently existing in the world and their occurrence and intensity might be exacerbated in the coming years due to climate change. The severe impacts that droughts cause to inland water resources and to the associated socio-economic activities justify the continuous monitoring of the drought. The case study presented shows a practical application of a distributed drought monitoring system implemented in a real river basin district, the Júcar River Basin District (43,000km(2)), where drought periods of marked intensity have occurred historically and the climate ranges from humid in the north to semiarid in the south...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28805829/lineage-specific-dynamic-and-pre-established-enhancer-promoter-contacts-cooperate-in-terminal-differentiation
#14
Adam J Rubin, Brook C Barajas, Mayra Furlan-Magaril, Vanessa Lopez-Pajares, Maxwell R Mumbach, Imani Howard, Daniel S Kim, Lisa D Boxer, Jonathan Cairns, Mikhail Spivakov, Steven W Wingett, Minyi Shi, Zhixin Zhao, William J Greenleaf, Anshul Kundaje, Michael Snyder, Howard Y Chang, Peter Fraser, Paul A Khavari
Chromosome conformation is an important feature of metazoan gene regulation; however, enhancer-promoter contact remodeling during cellular differentiation remains poorly understood. To address this, genome-wide promoter capture Hi-C (CHi-C) was performed during epidermal differentiation. Two classes of enhancer-promoter contacts associated with differentiation-induced genes were identified. The first class ('gained') increased in contact strength during differentiation in concert with enhancer acquisition of the H3K27ac activation mark...
August 14, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28804456/lessons-learned-about-neurodegeneration-from-microglia-and-monocyte-depletion-studies
#15
REVIEW
Harald Lund, Melanie Pieber, Robert A Harris
While bone marrow-derived Ly6C(hi) monocytes can infiltrate the central nervous system (CNS) they are developmentally and functionally distinct from resident microglia. Our understanding of the relative importance of these two populations in the distinct processes of pathogenesis and resolution of inflammation during neurodegenerative disorders was limited by a lack of tools to specifically manipulate each cell type. During recent years, the development of experimental cell-specific depletion models has enabled this issue to be addressed...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28803376/debris-flow-induced-topographic-changes-effects-of-recurrent-debris-flow-initiation
#16
Chien-Yuan Chen, Qun Wang
Chushui Creek in Shengmu Village, Nantou County, Taiwan, was analyzed for recurrent debris flow using numerical modeling and geographic information system (GIS) spatial analysis. The two-dimensional water flood and mudflow simulation program FLO-2D were used to simulate debris flow induced by rainfall during typhoon Herb in 1996 and Mindulle in 2004. Changes in topographic characteristics after the debris flows were simulated for the initiation of hydrological characteristics, magnitude, and affected area. Changes in topographic characteristics included those in elevation, slope, aspect, stream power index (SPI), topographic wetness index (TWI), and hypsometric curve integral (HI), all of which were analyzed using GIS spatial analysis...
August 12, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28802249/high-resolution-mapping-of-chromatin-conformation-in-cardiac-myocytes-reveals-structural-remodeling-of-the-epigenome-in-heart-failure
#17
Manuel Rosa-Garrido, Douglas J Chapski, Anthony D Schmitt, Todd H Kimball, Elaheh Karbassi, Emma Monte, Enrique Balderas, Matteo Pellegrini, Tsai-Ting Shih, Elizabeth Soehalim, David A Liem, Peipei Ping, Niels J Galjart, Shuxun Ren, Yibin Wang, Bing Ren, Thomas M Vondriska
Background -Cardiovascular disease is associated with epigenomic changes in the heart, however the endogenous structure of cardiac myocyte chromatin has never been determined. Methods -To investigate the mechanisms of epigenomic function in the heart, genome-wide chromatin conformation capture (Hi-C) and DNA sequencing were performed in adult cardiac myocytes following development of pressure overload-induced hypertrophy. Mice with cardiac-specific deletion of CTCF (a ubiquitous chromatin structural protein) were generated to explore the role of this protein in chromatin structure and cardiac phenotype...
August 11, 2017: Circulation
https://www.readbyqxmd.com/read/28799384/dynamical-density-functional-theory-with-hydrodynamic-interactions-in-confined-geometries
#18
B D Goddard, A Nold, S Kalliadasis
We study the dynamics of colloidal fluids in both unconfined geometries and when confined by a hard wall. Under minimal assumptions, we derive a dynamical density functional theory (DDFT) which includes hydrodynamic interactions (HI; bath-mediated forces). By using an efficient numerical scheme based on pseudospectral methods for integro-differential equations, we demonstrate its excellent agreement with the full underlying Langevin equations for systems of hard disks in partial confinement. We further use the derived DDFT formalism to elucidate the crucial effects of HI in confined systems...
December 7, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28798852/flow-reproducibility-of-whole-blood-and-other-bodily-fluids-in-simplified-no-reaction-lateral-flow-assay-devices
#19
H Li, D Han, M A Hegener, G M Pauletti, A J Steckl
The "no reaction" lateral flow assay (nrLFA) uses a simplified LFA structure with no conjugate pad and no stored reagents. In the nrLFA, the capillary-based transport time or distance is the key indicator, rather than the outcome of a biochemical reaction. Hence, the calibration and reproducibility of the nrLFA device are critical. The capillary flow properties of several membrane types (nitrocellulose, nylon, cellulose acetate, polyethersulfone, and polyvinylidene difluoride) are evaluated. Flow rate evaluations of MilliporeSigma Hi-Flow™ Plus (HF075, HF135 and HF180) nitrocellulose membranes on nrLFA are performed using bodily fluids (whole blood, blood plasma, and artificial sweat)...
March 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28796850/the-economic-impact-of-adult-hearing-loss-a-systematic-review
#20
Matthew G Huddle, Adele M Goman, Faradia C Kernizan, Danielle M Foley, Carrie Price, Kevin D Frick, Frank R Lin
Importance: Hearing impairment (HI) is highly prevalent in older adults and has been associated with adverse health outcomes. However, the overall economic impact of HI is not well described. Objective: The goal of this review was to summarize available data on all relevant costs associated with HI among adults. Evidence Review: A literature search of PubMed, Embase, the Cochrane Library, CINAHL, and Scopus was conducted in August 2015. For this systematic review, data extraction and quality assessment were performed by 2 independent reviewers...
August 10, 2017: JAMA Otolaryngology—Head & Neck Surgery
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