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https://www.readbyqxmd.com/read/29037000/-analysis-of-fipronil-and-metabolites-residues-distrubution-in-eggs
#1
B Lyu, D W Chen, J G Li, S Zhou, Y F Zhao
Objective: To compare the residual distribution of fipronil and its metabolites in white and yellow egg, and to analyze the residual changes of fipronil and its metabolites in raw and cooked samples, regarding the risk assessment of fipronil and its metabolites via consuming egg for different age groups. Methods: The white egg and yellow egg were isolated from 10 egg samples containing fipronil residues. Samples were extracted with acetonitrile and purified, and determined by liquid chromatography-high resolution mass spectrometry...
October 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29036902/dna-adducts-formed-by-aristolochic-acid-are-unique-biomarkers-of-exposure-and-explain-the-initiation-phase-of-upper-urothelial-cancer
#2
REVIEW
Marie Stiborová, Volker M Arlt, Heinz H Schmeiser
Aristolochic acid (AA) is a plant alkaloid that causes aristolochic acid nephropathy (AAN) and Balkan endemic nephropathy (BEN), unique renal diseases frequently associated with upper urothelial cancer (UUC). This review summarizes the significance of AA-derived DNA adducts in the aetiology of UUC leading to specific A:T to T:A transversion mutations (mutational signature) in AAN/BEN-associated tumours, which are otherwise rare in individuals with UCC not exposed to AA. Therefore, such DNA damage produced by AA-DNA adducts is one rare example of the direct association of exposure and cancer development (UUC) in humans, confirming that the covalent binding of carcinogens to DNA is causally related to tumourigenesis...
October 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036817/initial-heart-rate-reactivity-to-socioemotional-pictures-in-early-onset-alzheimer-s-disease
#3
Aditi Joshi, Elvira Jimenez, Mario F Mendez
Patients with Alzheimer's disease (AD) often have generalized anxiety, particularly in early-onset AD (EOAD) or the first stages of their disease. This increased anxiety could be associated with decreased sensorimotor gating with increased attention to significant stimuli from AD pathology in the entorhinal cortex. We investigated whether widening initial attention to socioemotional stimuli was association with anxiety among 16 patients with first stage EOAD compared to 19 normal controls (NCs). The participants underwent assessment of their initial heart rate deceleration ("orienting response"; OR), a measure of attentional refocusing, to pictures (International Affective Picture Stimuli) varying in pleasant-unpleasant valence and social-nonsocial content...
October 11, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036810/naturalizing-activity-and-safety-of-human-monoclonal-antibodies-against-of-hepatitis-c-virus
#4
Tawfeek H Abelhafez, Ashraf A Tabll, Mostafa K El-Awady, Mohammad M Mashaly, Reem El Shenawy, Yasmine S El-Abd, Maysa H Shaker, Camelia A Abdel Malak
AIM: Assessment of neutralizing activity of the human monoclonal antibodies against HCV and also study its safety in experimental small animals (Swiss mice). MATERIALS AND METHODS: Assessment of neutralizing activity of the human monoclonal antibodies against HCV envelope regions (E1, E2) by two methods (by HCV cc infectious system and by using positive HCV positive serum as source of HCV particles (neutralizing assay 2). Dot ELISA were used to study the activity of the generated antibodies...
September 29, 2017: Human Antibodies
https://www.readbyqxmd.com/read/29036800/quantitative-parameters-of-contrast-enhanced-ultrasonography-for-assessment-of-renal-pathology-a-preliminary-study-in-chronic-kidney-disease
#5
Wen-Qi Yang, Shan Mou, Yao Xu, Li Xu, Feng-Hua Li, Hong-Li Li
No abstract text is available yet for this article.
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29036793/clinical-relevance-of-early-sublingual-microcirculation-monitoring-in-septic-shock-patients
#6
Nivin Sharawy, Reham Mahrous, Sara Whynot, Ronald George, Christian Lehmann
INTRODUCTION: Although microcirculation dysfunction plays unique role in septic shock, translation of microcirculation to clinical practices is limited by current semi-quantities analysis and unclear clinical relevance of microcirculation monitoring. Our aim was to critically evaluate the characteristic nature and relevant clinical important of microcirculation. EVIDENCE ACQUISITION: Pubmed (2000 to August 2015) were searched to identify observation, case-control, intervention and randomized clinical studies evaluating the relationship between microcirculation alterations and mortality, morbidity and drug responses...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29036763/effect-of-treadmill-exercise-on-skeletal-muscle-autophagy-in-rats-with-obesity-induced-by-a-high-fat-diet
#7
Do Keun Cho, Dong Hun Choi, Joon Yong Cho
PURPOSE: This study aimed to investigate the effects of treadmill exercise on body weight, blood biochemistry, and autophagy. METHODS: Triglyceride, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, insulin, and glucose levels were measured, the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) score was calculated, and the soleus muscle was analyzed for autophagy-related factors (Beclin-1, p62, LC3, Lamp-2) in rats with obesity induced by a high-fat diet...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036672/convergence-and-divergence-of-brain-network-dysfunction-in-deficit-and-non-deficit-schizophrenia
#8
Miao Yu, Zhengjia Dai, Xiaowei Tang, Xiang Wang, Xiaobin Zhang, Weiwei Sha, Shuqiao Yao, Ni Shu, Xindi Wang, Jiaying Yang, Xiangyang Zhang, Xiangrong Zhang, Yong He, Zhijun Zhang
Deficit schizophrenia (DS), characterized by primary and enduring negative symptoms, has been considered as a pathophysiologically distinct schizophrenic subgroup. Neuroimaging characteristics of DS, especially functional brain network architecture, remain largely unknown. Resting-state functional magnetic resonance imaging and graph theory approaches were employed to investigate the topological organization of whole-brain functional networks of 114 male participants including 33 DS, 41 non-deficit schizophrenia (NDS) and 40 healthy controls (HCs)...
July 20, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29036647/investigation-of-secondary-mixed-radiation-field-around-a-medical-linear-accelerator
#9
Piotr Tulik, Monika Tulik, Maciej Maciak, Natalia Golnik, Damian Kabat, Tomasz Byrski, Jan Lesiak
The aim of this study is to investigate secondary mixed radiation field around linac, as the first part of an overall assessment of out-of-field contribution of neutron dose for new advanced radiation dose delivery techniques. All measurements were performed around Varian Clinic 2300 C/D accelerator at Maria Sklodowska-Curie Memorial, Cancer Center and Institute of Oncology, Krakow Branch. Recombination chambers REM-2 and GW2 were used for recombination index of radiation quality Q4 determination (as an estimate of quality factor Q), measurement of total tissue dose Dt and calculation of gamma and neutron components to Dt...
September 29, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29036643/glass-assisted-and-standardized-assessment-of-gene-variations-from-sanger-sequence-trace-data
#10
Karol Pal, Vojtech Bystry, Tomas Reigl, Martin Demko, Adam Krejci, Tasoula Touloumenidou, Evangelia Stalika, Boris Tichy, Paolo Ghia, Kostas Stamatopoulos, Sarka Pospisilova, Jitka Malcikova, Nikos Darzentas
Motivation: Sanger sequencing is still being employed for sequence variant detection by many laboratories, especially in a clinical setting. However, chromatogram interpretation often requires manual inspection and in some cases, considerable expertise. Results: We present GLASS, a web-based Sanger sequence trace viewer, editor, aligner and variant caller, built to assist with the assessment of variations in 'curated' or user-provided genes. Critically, it produces a standardized variant output as recommended by the Human Genome Variation Society...
July 13, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29036640/toxicokinetics-of-the-synthetic-cathinone-%C3%AE-pyrrolidinohexanophenone
#11
Yuji Fujita, Toshinori Mita, Kiyotaka Usui, Yoshito Kamijo, Satoshi Kikuchi, Makoto Onodera, Yasuhisa Fujino, Yoshihiro Inoue
Synthetic cathinones inhibit monoamine transporters, such as serotonin, norepinephrine, and dopamine transporters, and act on the central nervous system via increasing synaptic concentrations of monoamines. These compounds, which are highly addictive and potentially poisonous, are new psychoactive substances. In this study, we investigated the toxicokinetics of the synthetic cathinone, α-pyrrolidinohexanophenone (α-PHP), and assessed the relationship between the toxicokinetics and the long-term clinical symptoms induced by α-PHP in a male patient...
September 28, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29036595/persistent-in-vivo-cytogenetic-effects-of-radioiodine-therapy-a-21-year-follow-up-study-using-multicolor-fish
#12
Gordon K Livingston, Maria Escalona, Alvis Foster, Adayabalam S Balajee
Our previous studies demonstrated the cytogenetic effects in the peripheral blood lymphocytes of a 34-year-old male patient who received ablative radioactive 131iodine therapy (RIT) on two different occasions in 1992 and 1994. Assessment of RIT-induced chromosomal damage by the cytokinesis-blocked micronucleus assay (CBMN) showed the persistence of elevated micronucleus frequency in this patient for more than two decades since the first RIT. Subsequent cytogenetic analysis performed in 2012 revealed both stable and unstable aberrations, whose frequencies were higher than the baseline reported in the literature...
September 21, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/29036533/gvolante-for-standardizing-completeness-assessment-of-genome-and-transcriptome-assemblies
#13
Osamu Nishimura, Yuichiro Hara, Shigehiro Kuraku
Motivation: Along with the increasing accessibility to comprehensive sequence information, such as whole genomes and transcriptomes, the demand for assessing their quality has been multiplied. To this end, metrics based on sequence lengths, such as N50, have become a standard, but they only evaluate one aspect of assembly quality. Conversely, analyzing the coverage of pre-selected reference protein-coding genes provides essential content-based quality assessment, but the currently available pipelines for this purpose, CEGMA and BUSCO, do not have a user-friendly interface to serve as a uniform environment for assembly completeness assessment...
July 7, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29036529/itsonedb-a-comprehensive-collection-of-eukaryotic-ribosomal-rna-internal-transcribed-spacer-1-its1-sequences
#14
Monica Santamaria, Bruno Fosso, Flavio Licciulli, Bachir Balech, Ilaria Larini, Giorgio Grillo, Giorgio De Caro, Sabino Liuni, Graziano Pesole
A holistic understanding of environmental communities is the new challenge of metagenomics. Accordingly, the amplicon-based or metabarcoding approach, largely applied to investigate bacterial microbiomes, is moving to the eukaryotic world too. Indeed, the analysis of metabarcoding data may provide a comprehensive assessment of both bacterial and eukaryotic composition in a variety of environments, including human body. In this respect, whereas hypervariable regions of the 16S rRNA are the de facto standard barcode for bacteria, the Internal Transcribed Spacer 1 (ITS1) of ribosomal RNA gene cluster has shown a high potential in discriminating eukaryotes at deep taxonomic levels...
September 25, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29036475/quantitative-health-risk-assessment-of-indoor-radon-a-systematic-review
#15
R Ajrouche, G Ielsch, E Cléro, C Roudier, D Gay, J Guillevic, D Laurier, A Le Tertre
Exposure to radon is a well-established cause of lung cancer in the general population. The aim of the present work is to identify and summarize the results of studies that have assessed the risk of lung cancer due to indoor radon, based on a systematic review of relevant published studies. Sixteen studies from 12 different countries met eligibility criteria. Large differences in radon concentrations were noted between and within individual countries, and variety of risk models used to estimate the attributable fraction...
September 19, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29036446/cardiac-resynchronization-therapy-when-no-lateral-pacing-option-exists-vectorcardiographic-guided-non-lateral-left-ventricular-lead-placement-predicts-acute-hemodynamic-response
#16
Stian Ross, Hans Henrik Odland, Alfonso Aranda, Thor Edvardsen, Lars Ove Gammelsrud, Trine Fink Haland, Richard Cornelussen, Einar Hopp, Erik Kongsgaard
Aims: A difficult cardiac resynchronization therapy (CRT) implantation scenario emerges when no lateral pacing option exists. The aim of this study was to explore the effect of biventricular pacing (BIVP) on vectorcardiographic parameters in patients with a non-lateral left ventricular (LV) lead position. We hypothesized that perimeter and area reduction for both the QRS complex and T-wave would predict acute CRT response. Methods and results: Twenty-six patients (14 ischaemic) with a mean age of 63 ± 10 years and standard CRT indication underwent device implantation with continuous LV pressure registration...
September 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29036385/the-latent-taxonicity-of-schizotypy-in-biological-siblings-of-probands-with-schizophrenia
#17
Richard J Linscott, Sarah E Morton
If schizotypy is a taxonic liability for schizophrenia with a general population prevalence of ~10%, it should also be taxonic among biological siblings of probands with schizophrenia. Moreover, assuming this is so, siblings' schizotypy class membership should be predicted by probands' familial load for psychotic disorder and clinical severity, consistent with a multifactorial polygenic threshold model of schizophrenia. We tested these hypotheses in the Genetic Risk and Outcome of Psychosis (GROUP) Study where siblings of probands (n = 792) and unaffected controls (n = 559) provided self-report ratings on the Community Assessment of Psychic Experiences (CAPE)...
October 4, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29036381/project-echo-telementoring-intervention-for-managing-chronic-pain-in-primary-care-insights-from-a-qualitative-study
#18
Leslie Carlin, Jane Zhao, Ruth Dubin, Paul Taenzer, Hannah Sidrak, Andrea Furlan
Objective: Family physicians in Canada receive little training in chronic pain management; concomitantly, they face increasing pressure to reduce their prescribing of opioids. Project ECHO Ontario Chronic Pain/Opioid Stewardship (ECHO) is a telementoring intervention for primary care practitioners that enhances their pain management skills. This qualitative study reports participants' experiences and assessment of ECHO. Design: An opportunistic sample of multidisciplinary primary care providers attending one of three residential weekend workshops participated in focus group discussions...
September 27, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29036363/predictive-ability-of-intermittent-daily-sickle-cell-pain-assessment-the-pisces-project
#19
Wally R Smith, Donna K McClish, James Levenson, Imoigele Aisiku, Bassam Dahman, Viktor E Bovbjerg, Susan Roseff, John Roberts
Background: Pain diary assessment in sickle cell disease (SCD) may be expensive and impose a high respondent burden. Objective: To report whether intermittent assessment could substitute for continuous daily pain assessment in SCD. Design: Prospective cohort study. Setting: Academic and community practices in Virginia. Patients: A total of 125 SCD patients age 16 years or older in the Pain in Sickle Cell Epidemiology Study...
September 26, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29036284/airway-volume-analysis-is-there-a-correlation-between-two-and-three-dimensions
#20
Luize Severo Martins, Gabriela Salatino Liedke, Luis Dias da Silveira Heraldo, Priscila Fernanda da Silveira, Nadia Assein Arus, Edwin M Ongkosuwito, Mariana Boessio Vizzotto
Objectives: No consensus exists on the assessment of airway in CBCT scans. Two-dimensional measures remain the standard in the cephalometric analysis. This research aimed to evaluate linear and area measurements in two-dimensional views from specific airway regions of interest and compare these to the correspondent volume in CBCT exams. Materials and Methods: 250-selected CBCT scans were retrospectively analyzed. A trained and calibrated examiner performed the linear, area and volume measurements in specific sites for nasal cavity, nasopharynx and oropharynx compartments...
September 23, 2017: European Journal of Orthodontics
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