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https://www.readbyqxmd.com/read/27928483/emergence-of-cmy-2-and-dha-1-type-ampc-%C3%AE-lactamases-in-enterobacter-cloacae-isolated-from-several-hospitals-of-qazvin-and-tehran-iran
#1
Amir Peymani, Taghi Naserpour-Farivar, Moein Yeylagh-Beygi, Shahiin Bolori
BACKGROUND AND OBJECTIVES: The emergence of plasmid-mediated AmpC (pAmpC) β-lactamases conferring resistance to third-generation cephalosporins has become a major clinical concern worldwide. The aims of this study were to determine the prevalence of pAmpC-producing E. cloacae isolates and typing of them in Qazvin and Tehran provinces, Iran. MATERIALS AND METHODS: A total of 120 cefoxitin non-susceptible isolates of E. cloacae were obtained from educational hospitals of Qazvin and Tehran, Iran...
June 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/27924714/biomonitoring-of-mycotoxins-in-urine-pilot-study-in-mill-workers
#2
Wolfram Föllmann, Nurshad Ali, Meinolf Blaszkewicz, Gisela H Degen
Contamination of grains with mycotoxins results in a dietary background exposure of the general population. In occupational settings such as during processing of raw materials as in milling, an additional mycotoxin exposure by inhalation is possible. Biomonitoring is an integrative approach to assess human exposure from various sources and by all routes. To investigate possible workplace exposure to mycotoxins, a pilot study was conducted that compared levels of urinary biomarkers in mill workers to those in a control group with dietary mycotoxin intake alone...
2016: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/27923621/transcriptomic-analysis-of-gene-expression-profiles-of-stomach-carcinoma-reveal-abnormal-expression-of-mitotic-components
#3
Hongfei Tong, Jisheng Wang, Hui Chen, Zhaohong Wang, Henwei Fan, Zhonglin Ni
AIMS: In order to explore the etiology of gastric cancer on global gene expression level, we developed advanced bioinformatic analysis to investigate the variations of global gene expression and the interactions among them. MAIN METHODS: We downloaded the dataset GSE63288 from Gene Expression Omnibus (GEO) database which included 22 human gastric cancer and 22 healthy control samples. We identified the differential expression genes, and explored the Gene ontology (GO) and pathways of the differentially expressed genes...
December 3, 2016: Life Sciences
https://www.readbyqxmd.com/read/27922865/additional-value-of-early-phase-18f-fp-cit-pet-image-for-differential-diagnosis-of-atypical-parkinsonism
#4
Soyoung Jin, Minyoung Oh, Seung Jun Oh, Jungsu S Oh, Sang Ju Lee, Sun Ju Chung, Jae Seung Kim
PURPOSE: Regional cerebral perfusion is coupled to metabolism in general. Early perfusion dominant imaging using F-FP-CIT PET (pCIT) may provide complementary information to delayed dopamine transporter dominant images. We investigated the ability of pCIT to differentiate atypical Parkinson disorder from Parkinson disease (PD) compared to FDG and the image quality for optimizing the acquisition time. METHODS: Sixty-seven subjects [PD, 23 subjects; multiple system atrophy-cerebellar type (MSA-C), 27 subjects; MSA-Parkinson type (MSA-P), 12 subjects; and progressive supranuclear palsy (PSP), 5 subjects] underwent F-FP-CIT and FDG PET...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27917538/five-short-screening-tests-in-the-detection-of-prevalent-delirium-diagnostic-accuracy-and-performance-in-different-neurocognitive-subgroups
#5
N A O'Regan, K Maughan, N Liddy, J Fitzgerald, D Adamis, D W Molloy, D Meagher, S Timmons
BACKGROUND: Delirium is prevalent and serious, yet remains under-recognised. Systematic screening could improve detection; however, consensus is lacking as to the best approach. Our aim was to assess the diagnostic accuracy of five simple cognitive tests in delirium screening: six-item cognitive impairment test (6-CIT), clock-drawing test, spatial span forwards, months of the year backwards (MOTYB) and intersecting pentagons (IPT). METHODS: A cross-sectional study was conducted...
December 5, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27908754/cyclic-citrullinated-mbp87-99-peptide-stimulates-t-cell-responses-implications-in-triggering-disease
#6
Vasso Apostolopoulos, George Deraos, Minos-Timotheos Matsoukas, Stephanie Day, Lily Stojanovska, Theodore Tselios, Maria-Eleni Androutsou, John Matsoukas
Amino acid mutations to agonist peptide epitopes of myelin proteins have been used to modulate immune responses and experimental autoimmune encephalomyelitis (EAE, animal model of multiple sclerosis). Such amino acid alteration are termed, altered peptide ligands (APL). We have shown that the agonist myelin basic protein (MBP) 87-99 epitope (MBP87-99) with crucial T cell receptor (TCR) substitutions at positions 91 and 96 (K(91),P(96) (TCR contact residues) to R(91),A(96); [R(91),A(96)]MBP87-99) results in altered T cell responses and inhibits EAE symptoms...
November 19, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27906052/antibody-responses-to-de-novo-identified-citrullinated-fibrinogen-peptides-in-rheumatoid-arthritis-and-visualization-of-the-corresponding-b-cells
#7
Vijay Joshua, Loes Schobers, Philip J Titcombe, Lena Israelsson, Johan Rönnelid, Monika Hansson, Anca I Catrina, Ger J M Pruijn, Vivianne Malmström
BACKGROUND: Antibodies against citrullinated proteins (ACPA) are common in patients with rheumatoid arthritis (RA). ACPA can appear before disease onset and target many self-antigens. Citrullinated fibrin/fibrinogen represents a classical ACPA target antigen, and mass spectrometry of RA synovial fluid reveals elevated citrullinated (cit) fibrinogen (Fib) peptides compared to non-RA controls. We investigated the extent to which these less-studied peptides represent autoantibody targets and sought to visualize the corresponding cit-Fib-reactive B cells in RA patients...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27896614/modulatory-effects-of-zn-2-ions-on-the-toxicity-of-citrate-and-pvp-capped-gold-nanoparticles-towards-freshwater-algae-scenedesmus-obliquus
#8
V Iswarya, J B Johnson, Abhinav Parashar, Mrudula Pulimi, N Chandrasekaran, Amitava Mukherjee
Gold nanoparticles (GNPs) are widely used for medical purposes, both in diagnostics as well as drug delivery, and hence are prone to release and distribution in the environment. Thus, we have explored the effects of GNPs with two distinct surface capping (citrate and PVP), and three different sizes (16, 27, and 37 nm) at 0.01-, 0.1-, and 1-mg L(-1) concentrations on a predominant freshwater alga Scenedesmus obliquus in the sterile freshwater matrix. We have also investigated how an abundant metal ion from freshwater, i...
November 28, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27895402/effect-of-airplane-transport-of-donor-livers-on-post-liver-transplantation-survival
#9
Yi Huang, Gerry MacQuillan, Leon A Adams, George Garas, Megan Collins, Albert Nwaba, Linjun Mou, Max K Bulsara, Luc Delriviere, Gary P Jeffrey
AIM: To evaluate the effect of long haul airplane transport of donor livers on post-transplant outcomes. METHODS: A retrospective cohort study of patients who received a liver transplantation was performed in Perth, Australia from 1992 to 2012. Donor and recipient characteristics information were extracted from Western Australian liver transplantation service database. Patients were followed up for a mean of six years. Patient and graft survival were evaluated and compared between patients who received a local donor liver and those who received an airplane transported donor liver...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27895316/investigating-cytokinesis-failure-as-a-strategy-in-cancer-therapy
#10
Callum McKenzie, Pier Paolo D'Avino
Effective therapeutics exploit common characteristics shared amongst cancers. As many cancers present chromosomal instability (CIN), one possible approach to treat these cancers could be to increase their CIN above a threshold that would affect their viability. Here, we investigated whether causing polyploidy by cytokinesis failure could represent a useful approach. We show that cytokinesis failure caused by depletion of Citron kinase (CIT-K) dramatically decreased cell proliferation in breast, cervical and colorectal cancer cells...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27876809/cold-induced-thermogenesis-in-humans
#11
REVIEW
R J Brychta, K Y Chen
A basic property of endothermic thermoregulation is the ability to generate heat by increasing metabolism in response to cold ambient temperatures to maintain a stable core body temperature. This process, known as cold-induced thermogenesis (CIT), has been measured in humans as early as 1780 by Antoine Lavoisier, but has found renewed interest because of the recent 'rediscovery' of thermogenic, cold-activated brown adipose tissue (BAT) in adult humans. In this review, we summarize some of the key findings of the work involving CIT over the past two centuries and highlight some of the seminal studies focused on this topic...
November 23, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27870563/economic-burden-of-chronic-lymphocytic-leukemia-in-the-era-of-oral-targeted-therapies-in-the-united-states
#12
Qiushi Chen, Nitin Jain, Turgay Ayer, William G Wierda, Christopher R Flowers, Susan M O'Brien, Michael J Keating, Hagop M Kantarjian, Jagpreet Chhatwal
Purpose Oral targeted therapies represent a significant advance for the treatment of patients with chronic lymphocytic leukemia (CLL); however, their high cost has raised concerns about affordability and the economic impact on society. Our objective was to project the future prevalence and cost burden of CLL in the era of oral targeted therapies in the United States. Methods We developed a simulation model that evaluated the evolving management of CLL from 2011 to 2025: chemoimmunotherapy (CIT) as the standard of care before 2014, oral targeted therapies for patients with del(17p) and relapsed CLL from 2014, and for first-line treatment from 2016 onward...
November 21, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27870152/practical-aspects-of-gene-regulatory-inference-via-conditional-inference-forests-from-expression-data
#13
Kyrylo Bessonov, Kristel Van Steen
Gene regulatory network (GRN) inference is an active area of research that facilitates understanding the complex interplays between biological molecules. We propose a novel framework to create such GRNs, based on Conditional Inference Forests (CIFs) as proposed by Strobl et al. Our framework consists of using ensembles of Conditional Inference Trees (CITs) and selecting an appropriate aggregation scheme for variant selection prior to network construction. We show on synthetic microarray data that taking the original implementation of CIFs with conditional permutation scheme (CIFcond ) may lead to improved performance compared to Breiman's implementation of Random Forests (RF)...
December 2016: Genetic Epidemiology
https://www.readbyqxmd.com/read/27863376/cxcr4-increases-in-vivo-glioma-perivascular-invasion-and-reduces-radiation-induced-apoptosis-a-genetic-knockdown-study
#14
Viveka Nand Yadav, Daniel Zamler, Gregory J Baker, Padma Kadiyala, Anat Erdreich-Epstein, Ana C DeCarvalho, Tom Mikkelsen, Maria G Castro, Pedro R Lowenstein
Glioblastoma (GBM) is a highly invasive brain tumor. Perivascular invasion, autovascularization and vascular co-option occur throughout the disease and lead to tumor invasion and progression. The molecular basis for perivascular invasion, i.e., the interaction of glioma tumor cells with endothelial cells is not well characterized. Recent studies indicate that glioma cells have increased expression of CXCR4. We investigated the in-vivo role of CXCR4 in perivascular invasion of glioma cells using shRNA-mediated knock down of CXCR4...
November 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27856628/analysis-of-extrastriatal-123i-fp-cit-binding-contributes-to-the-differential-diagnosis-of-parkinsonian-diseases
#15
Merijn Joling, Chris Vriend, Odile A Van den Heuvel, Pieter G H M Raijmakers, Paul A Jones, Henk W Berendse, Jan Booij
: (123)I-FP-CIT SPECT can visualise and quantify striatal dopamine transporter (DAT) binding in vivo. In addition, (123)I-FP-CIT has modest affinity for the serotonin transporter (SERT), predominantly represented in extrastriatal binding. Based on previous imaging studies that have suggested more pronounced degeneration of other monoaminergic systems in multiple system atrophy (MSA) and progressive supranuclear palsy (PSP) than in Parkinson's disease (PD), we hypothesised that, in addition to striatal DAT binding, there would be differences in extrastriatal (123)I-FP-CIT SPECT binding to SERT between MSA, PSP and PD...
November 17, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27842867/detection-and-epidemiology-of-plasmid-mediated-ampc-%C3%AE-lactamase-producing-escherichia-coli-in-two-irish-tertiary-care-hospitals
#16
Y Y Li, F Cassidy, A Salmon, D Keating, C M Herra, K Schaffer
This study determined the prevalence and distribution of plasmid-mediated AmpC (pAmpC) β-lactamases in Irish Escherichia coli isolates. Clinical E. coli isolates (n=95) that were intermediate or resistant to cefoxitin and/or flagged by VITEK(®) 2 as potential AmpC-producers underwent confirmation using a MASTDISCS™ ESBL and AmpC Detection Kit. Multiplex PCR capable of detecting family-specific plasmid ampC genes was performed to detect the presence of these genes. Five PCR-negative isolates were selected for promoter analysis...
December 2015: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27827806/citrulline-directly-modulates-muscle-protein-synthesis-via-the-pi3k-mapk-4e-bp1-pathways-evidence-from-in-vivo-ex-vivo-and-in-vitro-studies
#17
Servane Le Plénier, Arthur Goron, Athanassia Sotiropoulos, Eliane Archambault, Chantal Guihenneuc, Stéphane Walrand, Jerome Salles, Marion Jourdan, Nathalie Neveux, Luc Cynober, Christophe Moinard
Citrulline (CIT) is an endogenous amino acid produced by the intestine. Recent literature consistently shows CIT to be an activator of muscle protein synthesis (MPS). However, the underlying mechanism is still unknown. Our working hypothesis was that CIT might regulate muscle homeostasis directly through the mTORC1/PI3K/MAPK pathways. Because CIT undergoes both inter-organ and intra-organ trafficking and metabolism, we combined three approaches: in vivo, ex vivo and in vitro. Using a model of malnourished aged rats, CIT supplementation activated the phosphorylation of S6K1 and 4E-BP1 in muscle...
November 8, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27823643/an-overview-of-hematopoietic-stem-cell-transplantation-related-thrombotic-complications
#18
REVIEW
Ugur Sahin, Pinar Ataca Atilla, Erden Atilla, Selami Kocak Toprak, Taner Demirer
Thrombotic episodes are far less common than bleeding complications after hematopoietic stem cell transplantation (HSCT). However, they lead to significant morbidity and mortality. These complications are classified into four groups, including venous thromboembolic events (VTE), catheter-induced thrombosis (CIT), transplant-associated thrombotic microangiopathy (TA-TMA) and sinusoidal obstruction syndrome (SOS) or veno-occlusive disease (VOD). The frequency of VTE is increased among patients undergoing HSCT due to some acquired conditions including underlying malignancy, infections, administration of myeloablative conditioning regimens and/or total body irradiation, prolonged hospitalizations leading to immobility and presence of central venous catheters...
November 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27814458/test-retest-reproducibility-of-extrastriatal-binding-with-123-i-fp-cit-spect-in-healthy-male-subjects
#19
Kiwamu Matsuoka, Fumihiko Yasuno, Takayuki Shinkai, Toshiteru Miyasaka, Masato Takahashi, Kuniaki Kiuchi, Jun Kosaka, Makoto Inoue, Kimihiko Kichikawa, Masatoshi Hasegawa, Toshifumi Kishimoto
(123)I-labeled 2β-carbomethoxy-3β-(4-iodophenyl)-N-(3-fluoropropyl) nortropane ((123)I-FP-CIT) is used to assess striatal dopamine transporter (DAT) expression, but it can also quantify extrastriatal serotonin transporter (SERT) expressions. While FP-CIT uptake in extrastriatal regions has been quantified, no information exists on the reproducibility of the (123)I-FP-CIT specific uptake ratio (SUR) in extrastriatal regions. We investigated test-retest reproducibility of (123)I-FP-CIT binding in the striatum, the midbrain, and cortical regions in eight healthy male subjects...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27794596/development-and-application-of-a-multiplex-real-time-pcr-assay-as-an-indicator-of-potential-allergenicity-in-citrus-fruits
#20
Jinlong Wu, Lin Chen, Dingbo Lin, Zhaocheng Ma, Xiuxin Deng
The effects of tissue type, harvest maturity and genetic factors on the expression of genes that related to citrus fruit allergies remain poorly understood. In the present study, a multiplex real-time PCR assay was developed to monitor the expression of citrus allergen genes individually with the advantages of much fewer sample requirements and simultaneously multiple target genes detection. Gene specific primer pairs and Taqman probes of three citrus allergen genes Cit s 1.01, Cit s 2.01, Cit s 3.01 and the house-keeping gene β-actin were designed based on gene sequence differences...
October 31, 2016: Journal of Agricultural and Food Chemistry
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