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https://www.readbyqxmd.com/read/28430535/transcranial-focused-ultrasound-a-new-tool-for-non-invasive-neuromodulation
#1
Maria Fini, William J Tyler
Ultrasound (US) is widely known for its utility as a biomedical imaging modality. An abundance of evidence has recently accumulated showing that US is also useful for non-invasively modulating brain circuit activity. Through a series of studies discussed in this short review, it has recently become recognized that transcranial focused ultrasound can exert mechanical (non-thermal) bioeffects on neurons and cells to produce focal changes in the activity of brain circuits. In addition to highlighting scientific breakthroughs and observations that have driven the development of the field of ultrasonic neuromodulation, this study also provides a discussion of mechanisms of action underlying the ability of ultrasound to physically stimulate and modulate brain circuit activity...
April 21, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28430153/a-novel-method-of-localization-for-moving-objects-with-an-alternating-magnetic-field
#2
Xiang Gao, Shenggang Yan, Bin Li
Magnetic detection technology has wide applications in the fields of geological exploration, biomedical treatment, wreck removal and localization of unexploded ordinance. A large number of methods have been developed to locate targets with static magnetic fields, however, the relation between the problem of localization of moving objectives with alternating magnetic fields and the localization with a static magnetic field is rarely studied. A novel method of target localization based on coherent demodulation was proposed in this paper...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28429989/personalized-medicine-what-are-the-challenges-for-health-services
#3
Walter Ricciardi
Genetics and genomics, together with other biomedical sciences and digital technologies, have a vital role to play in transforming health services to become systems that can work for health in the 21st century in ways that are affordable and that respond to individuals' requirement for more autonomy. Health services should embrace this agenda and implement changes in the organization of care.
January 1, 2017: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/28428989/generation-and-characterization-of-the-blood-transcriptome-of-macaca-thibetana-and-comparative-analysis-with-m-mulatta
#4
Peng Li, Lianming Du, Wujiao Li, Zhenxin Fan, Daiwen Zeng, Hui Chen, Liang Zhou, Yong Yi, Na Yang, Kefeng Dou, Bisong Yue, Jing Li
Transcriptome profiles provide a large transcript sequence data set for genomic study, particularly in organisms that have no accurate genome data published. The Tibetan macaque (Macaca thibetana) is commonly considered to be an endemic species to China and an important animal in biomedical research in the present day. In the present study, we report the de novo assembly and characterization of the blood transcriptome of the Tibetan macaque from three individuals, and we also sequenced the blood transcriptome of the rhesus macaque (Macaca mulatta) for comparison...
April 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28427321/in-silico-assessment-of-biomedical-products-the-conundrum-of-rare-but-not-so-rare-events-in-two-case-studies
#5
Marco Viceconti, Claudio Cobelli, Tarek Haddad, Adam Himes, Boris Kovatchev, Mark Palmer
In silico clinical trials, defined as "The use of individualized computer simulation in the development or regulatory evaluation of a medicinal product, medical device, or medical intervention," have been proposed as a possible strategy to reduce the regulatory costs of innovation and the time to market for biomedical products. We review some of the the literature on this topic, focusing in particular on those applications where the current practice is recognized as inadequate, as for example, the detection of unexpected severe adverse events too rare to be detected in a clinical trial, but still likely enough to be of concern...
May 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28420614/applications-of-genome-editing-tools-in-precision-medicine-research
#6
Li Shuang, Yang Yuanyuan, Qiu Yan, Chen Yanhao, Xu Luwei, Ding Qiurong
The emergence of genome editing tools, such as the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9) system, has enabled researchers to achieve somatic and germline genomic manipulations in cell lines and model organisms. Within a couple of years, genome editing is now being rapidly developed for multiple applications and widely used in biomedical researches, including creation of disease models with desired genetic mutations, screening in a high-throughput manner for drug resistance genes, and making appropriate editions to genes in vivo for disease treatment...
March 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28420226/determination-of-magnetic-parameters-of-maghemite-%C3%AE-fe2o3-core-shell-nanoparticles-from-nonlinear-magnetic-susceptibility-measurements
#7
Ihor I Syvorotka, Lyubomyr P Pavlyk, Sergii B Ubizskii, Oleg A Buryy, Hrygoriy V Savytskyy, Nataliya Y Mitina, Oleksandr S Zaichenko
Method of determining of magnetic moment and size from measurements of dependence of the nonlinear magnetic susceptibility upon magnetic field is proposed, substantiated and tested for superparamagnetic nanoparticles (SPNP) of the "magnetic core-polymer shell" type which are widely used in biomedical technologies. The model of the induction response of the SPNP ensemble on the combined action of the magnetic harmonic excitation field and permanent bias field is built, and the analysis of possible ways to determine the magnetic moment and size of the nanoparticles as well as the parameters of the distribution of these variables is performed...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28418987/the-roles-of-behavioral-and-social-science-research-in-the-fight-against-hiv-aids-a-functional-framework
#8
Paul Gaist, Michael J Stirratt
Landmark advances have been made in HIV/AIDS prevention and treatment. These include proof-of-concept and public health implementation of pre-exposure prophylaxis (PrEP) and "treatment as prevention" (TasP) to reduce HIV transmission as well as definitive evidence of the clinical gain from early antiretroviral treatment (ART) initiation. Significant progress has been made in understanding and addressing the social contexts and behavioral factors that impact HIV prevention, care, and treatment interventions...
April 7, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28417933/radiogenomic-analysis-of-oncological-data-a-technical-survey
#9
REVIEW
Mariarosaria Incoronato, Marco Aiello, Teresa Infante, Carlo Cavaliere, Anna Maria Grimaldi, Peppino Mirabelli, Serena Monti, Marco Salvatore
In the last few years, biomedical research has been boosted by the technological development of analytical instrumentation generating a large volume of data. Such information has increased in complexity from basic (i.e., blood samples) to extensive sets encompassing many aspects of a subject phenotype, and now rapidly extending into genetic and, more recently, radiomic information. Radiogenomics integrates both aspects, investigating the relationship between imaging features and gene expression. From a methodological point of view, radiogenomics takes advantage of non-conventional data analysis techniques that reveal meaningful information for decision-support in cancer diagnosis and treatment...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28416395/the-early-history-of-manganese-and-the-recognition-of-its-neurotoxicity-1837-1936
#10
Paul D Blanc
The history of the biomedical recognition manganese-caused neurotoxicity mirrors changing technologies as much as it does the ontology of parkinsonism. The initial 1837 report of manganese-induced neurologic injury was made by John Couper, a university-based physician in Scotland. He made clear that the outbreak occurred among workers at the Charles Tennant bleach manufactory in the environs of Glasgow. The relatively new technology of chlorine generation using manganese accounted for the novel exposure involved...
April 14, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28415911/risk-safety-and-sex-among-male-prep-users-time-for-a-new-understanding
#11
Kimberly Koester, Rivet K Amico, Hailey Gilmore, Albert Liu, Vanessa McMahan, Kenneth Mayer, Sybil Hosek, Robert Grant
Recent advances in biomedical HIV prevention have led to optimistic projections of a dramatic worldwide reduction of new infections by 2030. This optimism is counterbalanced by concerns that the protective benefits of one such technology, HIV pre-exposure prophylaxis (PrEP), may be negated by increases in other behaviours that offset these benefits (risk compensation). To contribute to a deeper understanding of concepts of safety and risk in the context of HIV PrEP, we draw on the narrative accounts of 61 male PrEP users who participated in the inaugural PrEP demonstration project: the iPrEx open-label extension study...
April 18, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28408826/durable-antibacterial-and-uv-protective-ag-tio2-fabrics-for-sustainable-biomedical-application
#12
Shuhui Li, Tianxue Zhu, Jianying Huang, Qingqing Guo, Guoqiang Chen, Yuekun Lai
A facile method was developed to endow cotton fabric with remarkable antibacterial and ultraviolet (UV)-protective properties. The flower-like TiO2 micro-nanoparticles were first deposited onto cotton fabric surface via hydrothermal deposition method. Then, the Ag NPs with a high deposition density were evenly formed onto TiO2@cotton surface by sodium hydroxide solution pretreatment and followed by in situ reduction of ANO3. This work focused on the influence of different hydrothermal reaction durations and the concentration of AgNO3 on antibacterial activity against relevant microorganisms in medicine as well as on the UV-blocking property...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28406858/involvement-of-multiple-molecular-pathways-in-the-genetics-of-ocular-refraction-and-myopia
#13
Robert Wojciechowski, Ching-Yu Cheng
PURPOSE: The prevalence of myopia has increased dramatically worldwide within the last three decades. Recent studies have shown that refractive development is influenced by environmental, behavioral, and inherited factors. This review aims to analyze recent progress in the genetics of refractive error and myopia. METHODS: A comprehensive literature search of PubMed and OMIM was conducted to identify relevant articles in the genetics of refractive error. RESULTS: Genome-wide association and sequencing studies have increased our understanding of the genetics involved in refractive error...
April 11, 2017: Retina
https://www.readbyqxmd.com/read/28402462/omicseq-a-web-based-search-engine-for-exploring-omics-datasets
#14
Xiaobo Sun, William S Pittard, Tianlei Xu, Li Chen, Michael E Zwick, Xiaoqian Jiang, Fusheng Wang, Zhaohui S Qin
The development and application of high-throughput genomics technologies has resulted in massive quantities of diverse omics data that continue to accumulate rapidly. These rich datasets offer unprecedented and exciting opportunities to address long standing questions in biomedical research. However, our ability to explore and query the content of diverse omics data is very limited. Existing dataset search tools rely almost exclusively on the metadata. A text-based query for gene name(s) does not work well on datasets wherein the vast majority of their content is numeric...
April 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28401227/in-situ-mrna-isolation-from-a-microfluidic-single-cell-array-using-an-external-afm-nanoprobe
#15
Xuan Li, Yinglei Tao, Do-Hyun Lee, Hemantha K Wickramasinghe, Abraham P Lee
We present an in situ mRNA extraction platform to quantify marker-genes' expression levels of single target cells within high-density microfluidic trapping arrays. This platform enables single-cell transcriptomic analysis to reveal in-depth information of cellular mechanisms and population heterogeneity. Although microfluidic technology enables the automation of single-cell sorting, trapping and identification, most developed microfluidic devices are closed off and prevent single-cell access by external analytical equipment...
April 12, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28400991/computer-science-biology-and-biomedical-informatics-academy-outcomes-from-5-years-of-immersing-high-school-students-into-informatics-research
#16
EDITORIAL
Andrew J King, Arielle M Fisher, Michael J Becich, David N Boone
The University of Pittsburgh's Department of Biomedical Informatics and Division of Pathology Informatics created a Science, Technology, Engineering, and Mathematics (STEM) pipeline in 2011 dedicated to providing cutting-edge informatics research and career preparatory experiences to a diverse group of highly motivated high-school students. In this third editorial installment describing the program, we provide a brief overview of the pipeline, report on achievements of the past scholars, and present results from self-reported assessments by the 2015 cohort of scholars...
2017: Journal of Pathology Informatics
https://www.readbyqxmd.com/read/28398001/an-update-on-carbon-nanotube-enabled-x-ray-sources-for-biomedical-imaging
#17
REVIEW
Connor Puett, Christina Inscoe, Allison Hartman, Jabari Calliste, Dora K Franceschi, Jianping Lu, Otto Zhou, Yueh Z Lee
A new imaging technology has emerged that uses carbon nanotubes (CNT) as the electron emitter (cathode) for the X-ray tube. Since the performance of the CNT cathode is controlled by simple voltage manipulation, CNT-enabled X-ray sources are ideal for the repetitive imaging steps needed to capture three-dimensional information. As such, they have allowed the development of a gated micro-computed tomography (CT) scanner for small animal research as well as stationary tomosynthesis, an experimental technology for large field-of-view human imaging...
April 11, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28396973/seeing-spios-directly-in-vivo-with-magnetic-particle-imaging
#18
Bo Zheng, Elaine Yu, Ryan Orendorff, Kuan Lu, Justin J Konkle, Zhi Wei Tay, Daniel Hensley, Xinyi Y Zhou, Prashant Chandrasekharan, Emine U Saritas, Patrick W Goodwill, John D Hazle, Steven M Conolly
Magnetic particle imaging (MPI) is a new molecular imaging technique that directly images superparamagnetic tracers with high image contrast and sensitivity approaching nuclear medicine techniques-but without ionizing radiation. Since its inception, the MPI research field has quickly progressed in imaging theory, hardware, tracer design, and biomedical applications. Here, we describe the history and field of MPI, outline pressing challenges to MPI technology and clinical translation, highlight unique applications in MPI, and describe the role of the WMIS MPI Interest Group in collaboratively advancing MPI as a molecular imaging technique...
April 10, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28395315/creating-a-future-for-occupational-health
#19
Trevor K Peckham, Marissa G Baker, Janice E Camp, Joel D Kaufman, Noah S Seixas
Objectives: Economic, social, technical, and political drivers are fundamentally changing the nature of work and work environments, with profound implications for the field of occupational health. Nevertheless, researchers and practitioners entering the field are largely being trained to assess and control exposures using approaches developed under old models of work and risks. Methods: A speaker series and symposium were organized to broadly explore current challenges and future directions for the occupational health field...
January 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28391973/the-current-status-and-problems-confronted-in-delivering-precision-medicine-in-japan-and-europe
#20
REVIEW
Hideaki Bando
Precision medicine has been defined as "a predictive, preventive, personalized, and participatory health care service delivery model." Today, developments in next-generation sequencing and information technology have made precision medicine possible, with massive amounts of genetic, "omics," clinical, environmental, and lifestyle data now available. Unfortunately, differences in governmental support and health care regulations have resulted in heterogeneous progress among countries. In Japan, for example, precision cancer screening and treatments are increasingly being promoted, with collaboration among research, governmental, and pharmaceutical agencies taking place in the nationwide SCRUM-Japan cancer genome screening project...
February 22, 2017: Current Problems in Cancer
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