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Chi-Hung Liu, Tsong-Hai Lee, Pi-Yueh Chang, Chien-Hung Chang, Hsiu-Chuan Wu, Ting-Yu Chang, Kuo-Lun Huang, Chih-Kuang Cheng, Yeu-Jhy Chang
BACKGROUND: We hypothesized the inflammatory markers (IM) could be independent predictors of carotid stenosis progression (CSP) after carotid artery stenting (CAS). METHODS: Between 2010 and 2012, 122 patients undergoing cervicocranial revascularization in our hospital were prospectively recruited. Patients undergoing revascularizations other than CAS were excluded. Carotid duplex ultrasonography was performed before and at 1 week, 6 months (6M), 1 year, and 2 years after CAS...
March 19, 2018: Current Neurovascular Research
Leslie C Robinson, Richard C E Anderson, Douglas L Brockmeyer, Michelle R Torok, Todd C Hankinson
BACKGROUND: Fusion rates following rigid internal instrumentation for occipitocervical and atlantoaxial instability approach 100% in many reports. Based on this success and the morbidity that can be associated with obtaining autograft for fusion, surgeons increasingly select alternative graft materials. OBJECTIVE: To examine fusion failure using various graft materials in a retrospective observational study. METHODS: Insurance claims databases (Truven Health MarketScan® [Truven Health Analytics, Ann Arbor, Michigan] and IMS Health Lifelink/PHARMetrics [IMS Health, Danbury, Connecticut]) were used to identify patients with CPT codes 22590 and 22595...
March 15, 2018: Operative Neurosurgery (Hagerstown, Md.)
Marie Mardal, Petur Weihe Dalsgaard, Bing Qi, Christian Brinch Mollerup, Pieter Annaert, Kristian Linnet
The main analytical targets of synthetic cannabinoids are often metabolites. With the high number of new psychoactive substances entering the market, suitable workflows are needed for analytical target identification in biological samples. The aims of this study were to identify the main metabolites of the synthetic cannabinoids, AMB-CHMICA and 5C-AKB48, using an in silico-assisted workflow with analytical data acquired using ultra-high-performance liquid chromatography-(ion mobility spectroscopy)-high resolution-mass spectrometry in data-independent acquisition mode (UHPLC-(IMS)-HR-MSE )...
March 10, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Sarah Caughlin, Shikhar Maheshwari, Yuksel Agca, Cansu Agca, Aaron J Harris, Kristina Jurcic, Ken K-C Yeung, David F Cechetto, Shawn N Whitehead
BACKGROUND: Accumulation of simple gangliosides GM2 and GM3, and gangliosides with longer long-chain bases (d20:1) have been linked to toxicity and the pathogenesis of Alzheimer's disease (AD). Conversely, complex gangliosides, such as GM1, have been shown to be neuroprotective. Recent evidence using matrix-assisted laser desorption ionization imaging mass spectrometry (MALDI-IMS) has demonstrated that a-series gangliosides are differentially altered during normal aging, yet it remains unclear how simple species are shifting relative to complex gangliosides in the prodromal stages of AD...
March 12, 2018: Biochimica et Biophysica Acta
Neelam Khanal, Chiara Masellis, Michael Z Kamrath, David E Clemmer, Thomas R Rizzo
We report here our combination of cryogenic, messenger-tagging, infrared (IR) spectroscopy with ion mobility spectrometry (IMS) and mass spectrometry (MS) as a way to identify and analyze a set of human milk oligosaccharides (HMOs) ranging from trisaccharides to hexasaccharides. The added dimension of IR spectroscopy provides a diagnostic fingerprint in the OH and NH stretching region, which is crucial to identify these oligosaccharides, which are difficult to distinguish by IMS alone. These results extend our previous work in demonstrating the generality of this combined approach for distinguishing subtly different structural and regioisomers of glycans of biologically relevant size...
March 15, 2018: Analyst
Bonnie L Westra, Steven G Johnson, Samira Ali, Karen M Bavuso, Christopher A Cruz, Sarah Collins, Meg Furukawa, Mary L Hook, Anne LaFlamme, Kay Lytle, Lisiane Pruinelli, Tari Rajchel, Theresa Tess Settergren, Kathryn F Westman, Luann Whittenburg
BACKGROUND:  Secondary use of electronic health record (EHR) data can reduce costs of research and quality reporting. However, EHR data must be consistent within and across organizations. Flowsheet data provide a rich source of interprofessional data and represents a high volume of documentation; however, content is not standardized. Health care organizations design and implement customized content for different care areas creating duplicative data that is noncomparable. In a prior study, 10 information models (IMs) were derived from an EHR that included 2...
January 2018: Applied Clinical Informatics
Fulai Li, Fan Li, Dan Luo, Weihua Lai, Yonghua Xiong, Hengyi Xu
Infectious diseases caused by Listeria monocytogenes pose a great threat to public health worldwide. Therefore, a rapid and efficient method for L. monocytogenes detection is needed. In this study, a biotin-exposure-based immunomagnetic separation (IMS) method was developed. That is, biotinylated antibody was first targeted to L. monocytogenes. Then, streptavidin-functionalized magnetic nanoparticles were added and anchored onto L. monocytogenes cells indirectly through the strong noncovalent interaction between streptavidin and biotin...
August 9, 2018: Analytica Chimica Acta
Brian C Hauck, William F Siems, Charles Steve Harden, Vincent M McHugh, Herbert H Hill
Ion mobility spectrometry (IMS) is widely used to characterize compounds of interest (COIs) based on their reduced mobility ( K0 ) values. In an attempt to increase the accuracy and agreement of studies, the most recommended method has been to use a reference compound with a known K0 value to calibrate the instrument and calculate COI K0 values from normalized spectra. Researchers are limited by the accuracy of previous K0 value reference measurements on which to base their calibrations. Any inaccuracy in these reference K0 values, typically ± 2%, will propagate through to the calculated K0 value of the COI...
March 13, 2018: Analytical Chemistry
Zhuan Li, Jie Zhao, Shujun Zhang, Steven A Weinman
Alcohol consumption is generally well tolerated by the liver but in some individuals it results in persistent inflammation and liver disease. The mechanisms that regulate alcohol-induced liver inflammation are poorly understood. The transcription factor FOXO3 has previously been shown to be involved in suppressing alcohol-induced liver injury. In this study we demonstrate that in response to alcohol, approximately 10% of mouse hepatic macrophages undergo FOXO3-dependent apoptosis. By 3 days of alcohol exposure total hepatic macrophage numbers declined by 30% but these were restored to normal after 10 days of continued exposure...
December 2018: Cell Death Discovery
Aitor Sorribes-Soriano, Francesc Albert Esteve-Turrillas, Sergio Armenta, Ana Montoya, José Manuel Herrero-Martínez, Miguel de la Guardia
Magnetic molecularly imprinted polymers (MMIPs) were prepared for cocaine recognition by bulk polymerization in the presence of magnetic nanoparticles (MNPs). Two reagents (polyethylene glycol (PEG) and 3-(trimethoxysilyl)propyl methacrylate (V)) were used for MNPs modification. MMIPs were characterized and compared in terms of loading capacity, reusability, accuracy and precision for the extraction of cocaine from saliva samples. It was observed that V-MMIPs gave higher physical stability than PEG-MMIPs. Thus, V-MMIP were used for the analysis of cocaine users saliva...
February 27, 2018: Journal of Chromatography. A
Katrin Gekeler, Karl Ulrich Bartz-Schmidt, Helmut Sachs, Robert E MacLaren, Katarina Stingl, Eberhart Zrenner, Florian Gekeler
PURPOSE OF REVIEW: The purpose of this review is to provide an update on the efforts to restore vision through subretinal implants in patients with degenerative retinal diseases. In addition to the current technique and its latest improvements, it will focus on the surgical technique of implantation as well as explantation and reimplantation. RECENT FINDINGS: The durability of the current subretinal implant RETINA IMPLANT Alpha AMS has increased substantially compared with the predecessor model RETINA IMPLANT Alpha IMS...
March 9, 2018: Current Opinion in Ophthalmology
Jung-Chien Chen, Nan-Yung Hsu, Wei-Jei Lee, Shu-Chun Chen, Kong-Han Ser, Yi-Chih Lee
BACKGROUND: Metabolic surgery has become increasingly accepted for the treatment of type 2 diabetes (T2D). However, there is limited evidence regarding the optimal candidate and surgical procedure. Although a new individualized metabolic surgery (IMS) score was recently proposed for procedure selection, it has yet to be validated. OBJECTIVE: To validate the IMS score with regard to remission of T2D after metabolic surgery and compare it with the age, body mass index, C-peptide level, and duration of T2D (ABCD) score...
January 31, 2018: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Marco Orsini Federici, Janette McQuillan, Giovanni Biricolti, Serena Losi, Jeremie Lebrec, Catrina Richards, Cristiana Miglio, Kirsi Norrbacka
INTRODUCTION: Real-world evidence on glucagon-like peptide-1 receptor agonist (GLP-1 RAs) usage is emerging in different European countries but is lacking in Italy. This retrospective cohort study aimed to describe the real-world drug utilization patterns in patients initiating GLP-1 RAs for treating T2DM in Italy. METHODS: Adults aged ≥ 20 years and with ≥ 1 oral antidiabetic drug (alone or in combination with insulin) other than GLP-1 RAs in the 6 months prior to initiating exenatide twice daily (exBID), exenatide once weekly (exQW), dulaglutide once weekly (DULA), liraglutide once daily (LIRA) or lixisenatide once daily (LIXI) between March and July 2016 were retrospectively identified in the Italian IMS LifeLink™ longitudinal prescriptions database (retail pharmacy data)...
March 10, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
Laura Righetti, Andreas Bergmann, Gianni Galaverna, Ottar Rolfsson, Giuseppe Paglia, Chiara Dall'Asta
The recent hyphenation of ion mobility spectrometry (IMS) with high resolution mass spectrometry (HRMS) has risen as a powerful technique for both targeted and non-targeted screening, reducing background noise and allowing separation of isomeric and isobaric compounds. Nevertheless, such an approach remains largely unexplored in food safety applications, such as mycotoxin analysis. To implement ion mobility in routinely MS-based mycotoxin workflows, searchable databases with collusion cross section (CCS) values and accurate mass-values are required...
July 19, 2018: Analytica Chimica Acta
Karima Hider-Mlynarz, Philippe Cavalié, Patrick Maison
AIMS: To describe consumption trends of three groups of analgesics (non-opioids, mild and strong opioids) between 2006 and 2015 in France, and compare this pattern of use with six European countries in 2015. METHODS: Annual drugs sales were extracted from the French national authority's consumption database and from the IMS-MIDAS and national databases for European countries. RESULTS: The use of mild opioids in France decreased by 53% during the last 10 years due to the declining use of dextropropoxyphene combinations, along with an increase in the use of non-opioids and strong opioids (from 72 to 93 and 2 to 2...
March 7, 2018: British Journal of Clinical Pharmacology
David Goodenough, Josh Levy, Hildur Olafsdottir, Ingvi Olafsson
This paper describes Development of a Phantom for Tomosynthesis with Potential for Automated Analysis via the Cloud. Several studies are underway to investigate the effectiveness of Tomosynthesis Mammographic Image Screening, including the large TMIST project as funded by the National Cancer Institute The development of the phantom described in this paper follows initiatives from the FDA, the AAPM TG245 task group, and European Reference Organization (EUREF) for Quality Assured Breast Screening and Diagnostic Services Committee report noting, that no formal endorsement nor recommendation for use has been sought, or granted by any of these groups...
March 6, 2018: Journal of Applied Clinical Medical Physics
Mohammad T Jafari, Behzad Rezaei, Hajar Bahrami
In this study, we developed zirconium dioxide-reduced graphene oxide nanocomposite (ZrO2 -rGO), as a novel coating for stir bar sorptive extraction (SBSE), prior to analysis by negative corona discharge ion mobility spectrometry (NCD-IMS). Ethion was selected as a test compound to evaluate the method. A stir bar was coated with the ZrO2 -rGO nanocomposite using the sol-gel technique. ZrO2 has a high tendency towards the phosphonate group, hence its ability in absorbing ethion with high efficiency. On the other hand, graphene is a good sorbent for polar and semi-polar chemical compounds...
May 15, 2018: Talanta
Thao Bich Nguyen, Shigeru Kitani, Shuichi Shimma, Takuya Nihira
In streptomycetes, autoregulators are important signaling compounds that trigger secondary metabolism, and they are regarded as Streptomyces hormones based on their extremely low effective concentrations (nM) and the involvement of specific receptor proteins. Our previous distribution study revealed that butenolide-type Streptomyces hormones, including avenolide, are a general class of signaling molecules in streptomycetes and that Streptomyces albus J1074 may produce butenolide-type Streptomyces hormones. Here, we describe metabolite profiling of a disruptant of the S...
March 2, 2018: Applied and Environmental Microbiology
Lu Huang, Evgeniya V Nazarova, Shumin Tan, Yancheng Liu, David G Russell
To understand how infection by Mycobacterium tuberculosis (Mtb) is modulated by host cell phenotype, we characterized those host phagocytes that controlled or supported bacterial growth during early infection, focusing on the ontologically distinct alveolar macrophage (AM) and interstitial macrophage (IM) lineages. Using fluorescent Mtb reporter strains, we found that bacilli in AM exhibited lower stress and higher bacterial replication than those in IM. Interestingly, depletion of AM reduced bacterial burden, whereas depletion of IM increased bacterial burden...
March 2, 2018: Journal of Experimental Medicine
Marcello Arca, David Ansell, Maurizio Averna, Francesca Fanelli, Katherine Gorcyca, Şerban R Iorga, Aldo P Maggioni, Georges Paizis, Radovan Tomic, Alberico L Catapano
BACKGROUND AND AIMS: Statin utilization and lipid goal achievement were estimated in a large sample of Italian patients at high/very-high cardiovascular (CV) risk. METHODS: Patients aged ≥18 years with a valid low-density lipoprotein cholesterol (LDL-C) measurement in 2015 were selected from the IMS Health Real World Data database; non-high-density lipoprotein cholesterol (non-HDL-C) was assessed in those with available total cholesterol measurements. Index dates were defined as the last valid lipid measurement in 2015...
February 17, 2018: Atherosclerosis
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