keyword
MENU ▼
Read by QxMD icon Read
search

Hotspots

keyword
https://www.readbyqxmd.com/read/29138738/spatial-distribution-and-trends-of-waterborne-diseases-in-tashkent-province
#1
Veluswami Saravanan Subramanian, Min Jung Cho, Siwei Zoe Tan, Dilorom Fayzieva, Christian Sebaly
Introduction: The cumulative effect of limited investment in public water systems, inadequate public health infrastructure, and gaps in infectious disease prevention increased the incidence of waterborne diseases in Uzbekistan. The objectives of this study were: (1) to spatially analyze the distribution of the diseases in Tashkent Province, (2) to identify the intensity of spatial trends in the province, (3) to identify urban-rural characteristics of the disease distribution, and (4) to identify the differences in disease incidence between pediatric and adult populations of the province...
2017: Central Asian Journal of Global Health
https://www.readbyqxmd.com/read/29137986/long-range-stress-transmission-guides-endothelial-gap-formation
#2
C Corey Hardin, Joyjit Chattoraj, Greeshma Manomohan, Jader Colombo, Trong Nguyen, Dhananjay Tambe, Jeffrey J Fredberg, Konstantin Birukov, James P Butler, Emanuela Del Gado, Ramaswamy Krishnan
In endothelial gap formation, local tractions exerted by the cell upon its basal adhesions are thought to exceed balancing tensile stresses exerted across the cell-cell junction, thus causing the junction to rupture. To test this idea, we mapped evolving tractions, intercellular stresses, and corresponding growth of paracellular gaps in response to agonist challenge. Contrary to expectation, we found little to no relationship between local tensile stresses and gap formation. Instead, we discovered that intercellular stresses were aligned into striking multi-cellular domains punctuated by defects in stress alignment...
November 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29137622/genome-wide-scan-for-runs-of-homozygosity-identifies-potential-candidate-genes-associated-with-local-adaptation-in-valle-del-belice-sheep
#3
Salvatore Mastrangelo, Marco Tolone, Maria T Sardina, Gianluca Sottile, Anna M Sutera, Rosalia Di Gerlando, Baldassare Portolano
BACKGROUND: Because very large numbers of single nucleotide polymorphisms (SNPs) are now available throughout the genome, they are particularly suitable for the detection of genomic regions where a reduction in heterozygosity has occurred and they offer new opportunities to improve the accuracy of inbreeding ([Formula: see text]) estimates. Runs of homozygosity (ROH) are contiguous lengths of homozygous segments of the genome where the two haplotypes inherited from the parents are identical...
November 14, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/29137435/recurrent-mutations-in-a-serpinc1-hotspot-associate-with-venous-thrombosis-without-apparent-antithrombin-deficiency
#4
Wei Zeng, Bei Hu, Liang Tang, Yan-Yan You, Mara Toderici, Maria Eugenia de la Morena-Barrio, Javier Corral, Yu Hu
Despite the essential anticoagulant function of antithrombin and the high risk of thrombosis associated with its deficiency, the prevalence of antithrombin deficiency among patients with venous thromboembolism (VTE) is very low. However, increasing evidence suggests that antithrombin deficiency may be underestimated. The analysis of SERPINC1, the gene encoding antithrombin, in 1,304 consecutive Chinese VTE patients and 1,334 healthy controls revealed a hotspot involving residues 294 and 295 that severely increases the risk of VTE...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137388/rapid-and-accurate-detection-of-kras-mutations-in-colorectal-cancers-using-the-isothermal-based-optical-sensor-for-companion-diagnostics
#5
Choong Eun Jin, Seung-Seop Yeom, Bonhan Koo, Tae Yoon Lee, Jeong Hoon Lee, Yong Shin, Seok-Byung Lim
Although KRAS mutational status testing is becoming a companion diagnostic tool for managing patients with colorectal cancer (CRC), there are still several difficulties when analyzing KRAS mutations using the existing assays, particularly with regard to low sensitivity, its time-consuming, and the need for large instruments. We developed a rapid, sensitive, and specific mutation detection assay based on the bio-photonic sensor termed ISAD (isothermal solid-phase amplification/detection), and used it to analyze KRAS gene mutations in human clinical samples...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136733/-exploratory-study-of-circulating-tumor-dna-detection-in-early-breast-cancer-an-analysis-of-75-next-generation-sequencing-results
#6
B Zhou, L Xin, L Xu, Y H Liu, M M Zhang, R L Jing, X Y Liang, S B Cao
Objective: To explore the utility of circulating tumor DNA detection in early breast cancer by using next-generation sequencing. Methods: This exploratory study of circulating tumor DNA detection is for early invasive breast cancer patients treated in Breast Disease Center, Peking University First Hospital from December 2015 to July 2016. Plasma samples were collected and were used to isolate plasma cell-free DNA.Exons or hotspots of 247 cancer related genes were sequenced by next-generation sequencing. Mutations and their correlation with clinic-pathological factors were analyzed...
November 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29136659/predicting-the-distributions-of-egypt-s-medicinal-plants-and-their-potential-shifts-under-future-climate-change
#7
Emad Kaky, Francis Gilbert
Climate change is one of the most difficult of challenges to conserving biodiversity, especially for countries with few data on the distributions of their taxa. Species distribution modelling is a modern approach to the assessment of the potential effects of climate change on biodiversity, with the great advantage of being robust to small amounts of data. Taking advantage of a recently validated dataset, we use the medicinal plants of Egypt to identify hotspots of diversity now and in the future by predicting the effect of climate change on the pattern of species richness using species distribution modelling...
2017: PloS One
https://www.readbyqxmd.com/read/29135952/integrated-pest-management-of-coffee-berry-borer-in-hawaii-and-puerto-rico-current-status-and-prospects
#8
Luis F Aristizábal, Melissa Johnson, Suzanne Shriner, Robert Hollingsworth, Nicholas C Manoukis, Roxana Myers, Paul Bayman, Steven P Arthurs
The coffee berry borer (CBB), Hypothenemus hampei, is the most significant insect pest of coffee worldwide. Since CBB was detected in Puerto Rico in 2007 and Hawaii in 2010, coffee growers from these islands are facing increased costs, reduced coffee quality, and increased pest management challenges. Here, we outline the CBB situation, and summarize the findings of growers, researchers, and extension professionals working with CBB in Hawaii. Recommendations for the Integrated Pest Management (IPM) program for CBB in Hawaiian Islands and Puerto Rico include: (1) establish a CBB monitoring program, (2) synchronize applications of insecticides with peak flight activity of CBB especially during the early coffee season, (3) conduct efficient strip-picking as soon as possible after harvest and perform pre-harvest sanitation picks in CBB hotspots if needed, (4) establish protocols to prevent the escape of CBB from processing areas and when transporting berries during harvest, and (5) stump prune by blocks...
November 14, 2017: Insects
https://www.readbyqxmd.com/read/29133385/targeted-next-generation-sequencing-of-cancer-genes-in-poorly-differentiated-thyroid-cancer
#9
Tiemo S Gerber, Arno Schad, Nils Hartmann, Erik Springer, Ulrich Zechner, Thomas J Musholt
Poorly differentiated thyroid carcinoma (PDTC) is a rare malignancy with higher mortality than well-differentiated thyroid carcinoma. The histological diagnosis can be difficult as well as the therapy. Improved diagnosis and new targeted therapies require knowledge of DNA sequence changes in cancer-relevant genes. The TruSeq Amplicon Cancer Panel was used to screen cancer genomes from 25 PDTC patients for somatic single nucleotide variants in 48 genes known to represent mutational hotspots. A total of 4490 variants were found in 23 tissue samples of PDTC...
November 13, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29132119/how-tall-buildings-affect-turbulent-air-flows-and-dispersion-of-pollution-within-a-neighbourhood
#10
Elsa Aristodemou, Luz Maria Boganegra, Laetitia Mottet, Dimitrios Pavlidis, Achilleas Constantinou, Christopher Pain, Alan Robins, Helen ApSimon
The city of London, UK, has seen in recent years an increase in the number of high-rise/multi-storey buildings ("skyscrapers") with roof heights reaching 150 m and more, with the Shard being a prime example with a height of ∼310 m. This changing cityscape together with recent plans of local authorities of introducing Combined Heat and Power Plant (CHP) led to a detailed study in which CFD and wind tunnel studies were carried out to assess the effect of such high-rise buildings on the dispersion of air pollution in their vicinity...
November 10, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29130947/application-of-digital-pcr-in-detecting-human-diseases-associated-gene-mutation
#11
Yu Tong, Shizhen Shen, Hui Jiang, Zhi Chen
Gene mutation has been considered a research hotspot, and the rapid development of biomedicine has enabled significant advances in the evaluation of gene mutations. The advent of digital polymerase chain reaction (dPCR) elevates the detection of gene mutations to unprecedented levels of precision, especially in cancer-associated genes. dPCR has been utilized in the detection of tumor markers in cell-free DNA (cfDNA) samples from patients with different types of cancer in samples such as plasma, cerebrospinal fluid, urine and sputum, which confers significant value for dPCR in both clinical applications and basic research...
October 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29126206/the-incidence-and-origin-of-segmental-aneuploidy-in-human-oocytes-and-preimplantation-embryos
#12
D Babariya, E Fragouli, S Alfarawati, K Spath, D Wells
STUDY QUESTION: What is the incidence, origin and clinical significance of segmental aneuploidy in human oocytes and preimplantation embryos? SUMMARY ANSWER: Segmental aneuploidy occurs at a considerable frequency in preimplantation embryos with a majority being mitotic in origin. WHAT IS KNOWN ALREADY: In recent years, accurate techniques for the detection of aneuploidy in single cells have been developed. Research using such methods has confirmed that aneuploidy is a common feature of human oocytes and preimplantation embryos...
November 8, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29125484/general-practice-clinical-data-help-identify-dementia-hotspots-a-novel-geospatial-analysis-approach
#13
Nasser Bagheri, Kinley Wangdi, Nicolas Cherbuin, Kaarin J Anstey
We have a poor understanding of whether dementia clusters geographically, how this occurs, and how dementia may relate to socio-demographic factors. To shed light on these important questions, this study aimed to compute a dementia risk score for individuals to assess spatial variation of dementia risk, identify significant clusters (hotspots), and explore their association with socioeconomic status. We used clinical records from 16 general practices (468 Statistical Area level 1 s, N = 14,746) from the city of west Adelaide, Australia for the duration of 1 January 2012 to 31 December 2014...
November 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29124981/chitosan-and-its-derivatives-as-vehicles-for-drug-delivery
#14
Gangliang Huang, Yang Liu, Ling Chen
Chitosan and its derivatives as vehicles for drug delivery can achieve the purpose of sustained release and controlled release for drugs, improve the stability of drugs, and reduce adverse drug reactions. So, the bioavailability of drugs can be enhanced. Therefore, chitosan and its derivatives have become a hotspot in the field of drug delivery. Their characteristics as drug delivery vectors were introduced, the types and applications were summarized. The development direction of chitosan and its derivatives in this field was also forecasted...
2017: Drug Delivery
https://www.readbyqxmd.com/read/29124859/sympatric-kelp-species-share-a-large-portion-of-their-surface-bacterial-communities
#15
Matthew A Lemay, Patrick T Martone, Patrick Keeling, Jenn M Burt, Kira A Krumhansl, Rhea D Sanders, Laura Wegener Parfrey
Kelp forest ecosystems are biodiversity hotspots, providing habitat for dense assemblages of marine organisms and nutrients for marine and terrestrial food webs. The surfaces of kelps support diverse microbial communities that facilitate the transfer of carbon from algal primary production to higher trophic levels. We quantified the diversity of bacteria on the surfaces of eight sympatric kelp species from four sites in British Columbia. Kelp-associated bacterial communities are significantly different from their environment, even though 86% of their bacterial taxa are shared with seawater and 97% are shared with rocky substrate...
November 10, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29124088/considerations-and-code-for-partial-volume-correcting-18-f-av-1451-tau-pet-data
#16
Suzanne L Baker, Anne Maass, William J Jagust
[(18)F]-AV-1451 is a leading tracer used with positron emission tomography (PET) to quantify tau pathology. However, [(18)F]-AV-1451 shows "off target" or non-specific binding, which we define as binding of the tracer in unexpected areas unlikely to harbor aggregated tau based on autopsy literature [1]. Along with caudate, putamen, pallidum and thalamus non-specific binding [2], [3], we have found binding in the superior portion of the cerebellar gray matter, leading us to use inferior cerebellar gray as the reference region...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29123093/prevalence-and-detection-of-low-allele-fraction-variants-in-clinical-cancer-samples
#17
Hyun-Tae Shin, Yoon-La Choi, Jae Won Yun, Nayoung K D Kim, Sook-Young Kim, Hyo Jeong Jeon, Jae-Yong Nam, Chung Lee, Daeun Ryu, Sang Cheol Kim, Kyunghee Park, Eunjin Lee, Joon Seol Bae, Dae Soon Son, Je-Gun Joung, Jeeyun Lee, Seung Tae Kim, Myung-Ju Ahn, Se-Hoon Lee, Jin Seok Ahn, Woo Yong Lee, Bo Young Oh, Yeon Hee Park, Jeong Eon Lee, Kwang Hyuk Lee, Hee Cheol Kim, Kyoung-Mee Kim, Young-Hyuck Im, Keunchil Park, Peter J Park, Woong-Yang Park
Accurate detection of genomic alterations using high-throughput sequencing is an essential component of precision cancer medicine. We characterize the variant allele fractions (VAFs) of somatic single nucleotide variants and indels across 5095 clinical samples profiled using a custom panel, CancerSCAN. Our results demonstrate that a significant fraction of clinically actionable variants have low VAFs, often due to low tumor purity and treatment-induced mutations. The percentages of mutations under 5% VAF across hotspots in EGFR, KRAS, PIK3CA, and BRAF are 16%, 11%, 12%, and 10%, respectively, with 24% for EGFR T790M and 17% for PIK3CA E545...
November 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/29122835/multiple-hotspot-mutations-scanning-by-single-droplet-digital-pcr
#18
Charles Decraene, Amanda Silveira, François-Clément Bidard, Audrey Vallee, Marc Michel, Samia Melaabi, Anne Vincent-Salomon, Adrien Saliou, Alexandre Houy, Maud Milder, Olivier Lantz, Marc Ychou, Marc G Denis, Jean-Yves Pierga, Marc-Henri Stern, Charlotte Proudhon
BACKGROUND: Progress in the liquid biopsy field, combined with the development of droplet digital PCR (ddPCR)(12), has enabled noninvasive monitoring of mutations with high detection accuracy. However, current assays detect a restricted number of mutations per reaction. ddPCR is a recognized method for detecting alterations previously characterized in tumor tissues, but its use as a discovery tool when the mutation is unknown a priori remains limited. METHODS: We established 2 ddPCR assays detecting all genomic alterations within KRAS() exon 2 and EGFR exon 19 mutation hotspots, which are of clinical importance in colorectal and lung cancer, with use of a unique pair of TaqMan® oligoprobes...
November 9, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29121579/a-process-oriented-hydro-biogeochemical-model-enabling-simulation-of-gaseous-carbon-and-nitrogen-emissions-and-hydrologic-nitrogen-losses-from-a-subtropical-catchment
#19
Wei Zhang, Yong Li, Bo Zhu, Xunhua Zheng, Chunyan Liu, Jialiang Tang, Fang Su, Chong Zhang, Xiaotang Ju, Jia Deng
Quantification of nitrogen losses and net greenhouse gas (GHG) emissions from catchments is essential for evaluating the sustainability of ecosystems. However, the hydrologic processes without lateral flows hinder the application of biogeochemical models to this challenging task. To solve this issue, we developed a coupled hydrological and biogeochemical model, Catchment Nutrients Management Model - DeNitrification-DeComposition Model (CNMM-DNDC), to include both vertical and lateral mass flows. By incorporating the core biogeochemical processes (including decomposition, nitrification, denitrification and fermentation) of the DNDC into the spatially distributed hydrologic framework of the CNMM, the simulation of lateral water flows and their influences on nitrogen transportation can be realized...
November 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29119780/synergistic-effect-of-mos2-nanosheets-and-vs2-for-hydrogen-evolution-reaction-with-enhanced-humidity-sensing-performance
#20
Xiaofan Chen, Ke Yu, Yuhao Shen, Yu Feng, Zi-Qiang Zhu
As a typical transition metal dichalcogenides (TMDs), MoS2 has been a hotspot of research in many fields. In this work, the MoS2 nanosheets were compounded on 1T-VS2 nanoflowers (VS2@MoS2) successfully by two-step hydrothermal method for the first time and their hydrogen evolution properties were studied mainly. The higher charge transfer efficiency benefiting from the metallicity of VS2 and the greater activity due to more exposed active edge sites of MoS2 improve the hydrogen evolution reaction (HER) performance of the nanocomposite electrocatalyst...
November 9, 2017: ACS Applied Materials & Interfaces
keyword
keyword
78287
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"