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https://www.readbyqxmd.com/read/28794496/measuring-inter-protein-pairwise-interaction-energies-from-a-single-native-mass-spectrum-by-double-mutant-cycle-analysis
#1
Miri Sokolovski, Jelena Cveticanin, Déborah Hayoun, Ilia Korobko, Michal Sharon, Amnon Horovitz
The strength and specificity of protein complex formation is crucial for most life processes and is determined by interactions between residues in the binding partners. Double-mutant cycle analysis provides a strategy for studying the energetic coupling between amino acids at the interfaces of such complexes. Here we show that these pairwise interaction energies can be determined from a single high-resolution native mass spectrum by measuring the intensities of the complexes formed by the two wild-type proteins, the complex of each wild-type protein with a mutant protein, and the complex of the two mutant proteins...
August 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28780157/evaluation-of-ocular-irritancy-of-coal-tar-dyes-used-in-cosmetics-employing-reconstructed-human-cornea-like-epithelium-and-short-time-exposure-tests
#2
Miri Lee, Ki Taek Nam, Jungah Kim, Song E Lim, Sang Hyeon Yeon, Buhyun Lee, Joo Young Lee, Kyung-Min Lim
Coal-tar dyes in cosmetics may elicit adverse effects in the skin and eyes. Countries, like the US, have banned the use of coal-tar dyes in cosmetics for the eye area due to the potential for ocular irritation. We evaluated the eye irritation potential of 15 coal-tar dyes permitted as cosmetic ingredients in reconstructed human cornea-like epithelium (RhCEs [EpiOcular™ and MCTT HCE™]) tests and the short time exposure (STE) test. Eosin YS, phloxine B, tetrachlorotetrabromofluorescein, and tetrabromofluorescein were identified as irritants in RhCEs; dibromofluorescein and uranine yielded discrepant results...
August 3, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28780149/synthesis-and-biological-evaluation-of-quinazolinone-based-hydrazones-with-potential-use-in-alzheimer-s-disease
#3
Zahra Haghighijoo, Omidreza Firuzi, Bahram Hemmateenejad, Saeed Emami, Najmeh Edraki, Ramin Miri
Discovering multifunctional agents for the treatment of Alzheimer's disease (AD) is an attractive therapeutic approach. BACE1 (β-site amyloid precursor protein cleaving enzyme 1) inhibitors may play a pivotal role in treating AD. Therefore, the discovery of novel non-peptide BACE1 inhibitors with desirable blood brain barrier permeability is a favorable approach for treatment. Moreover, the antioxidant potential of a drug could serve as an added value for designing dual-acting therapeutic agents. Here, we report the design, synthesis and biological evaluation of quinazolinone-hydrazone derivatives as new multi-target candidates for the treatment of AD...
July 25, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28772116/a-path-to-understanding-how-motor-cortex-influences-muscle-activity
#4
Emily R Oby, Byron M Yu
The influence of motor cortex on muscles during different behaviors is incompletely understood. In this issue of Neuron, Miri et al. (2017) show that the population activity patterns produced by motor cortex during different behaviors determine the selective routing of signals along different pathways between motor cortex and muscles.
August 2, 2017: Neuron
https://www.readbyqxmd.com/read/28770702/prevalence-of-anti-dfs70-antibodies-in-patients-with-and-without-systemic-autoimmune-rheumatic-diseases
#5
Ora Shovman, Boris Gilburd, Chen Chayat, Howard Amital, Pnina Langevitz, Abdulla Watad, Adi Guy, Dolores Perez, Danielle Azoulay, Miri Blank, Yael Segal, Chelsea Bentow, Michael Mahler, Yehuda Shoenfeld
OBJECTIVES: Autoantibodies to the dense fine speckled 70 (DFS70) antigen are common among antinuclear antibodies (ANA) positive healthy individuals (HI). We assessed the prevalence of anti-DFS70 antibodies in patients with and without ANA-associated rheumatic diseases (AARDs) by two methods: chemiluminescent immunoassay (CIA) and an indirect immunofluorescence (IIF) assay based on immunoadsorption for DFS70. METHODS: Fifty-one ANA-positive sera samples from patients with confirmed clinical diagnosis of AARD, 92 samples from HI and 85 samples submitted to a reference laboratory for routine ANA testing were evaluated for the presence of anti-DFS70 antibodies...
July 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28770507/assessment-of-hospitalization-and-mortality-from-exposure-to-pm10-using-airq-modeling-in-ilam-iran
#6
Ali Nikoonahad, Razi Naserifar, Vali Alipour, Ayub Poursafar, Mohammad Miri, Hamid Reza Ghafari, Ali Abdolahnejad, Sepideh Nemati, Amir Mohammadi
The aims of this study were to assess the health impact of PM10 on inhabitants and to investigate the trend of PM10 concentrations in Ilam, Iran, from 2012 to 2015. For these aims, daily average concentration of PM10 was obtained from continuous monitoring stations in the study area. Mortality and morbidity due to PM10 were assessed by AirQ software developed by World Health Organization (WHO). Based on the results, the annual mean concentrations of PM10 in all of years were more than WHO guideline and PM10 concentration had a decreasing trend in this study period...
August 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28766558/the-effect-of-l-arginine-supplementation-on-body-composition-and-performance-in-male-athletes-a-double-blinded-randomized-clinical-trial
#7
N Pahlavani, M H Entezari, M Nasiri, A Miri, M Rezaie, M Bagheri-Bidakhavidi, O Sadeghi
This corrects the article DOI: 10.1038/ejcn.2016.266.
August 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28749759/criteria-to-stop-mass-drug-administration-for-lymphatic-filariasis-have-been-achieved-throughout-plateau-and-nasarawa-states-nigeria
#8
Abel Eigege, Darin S Evans, Gregory S Noland, Emmanuel Davies, John Umaru, Solomon E Adelamo, Bulus Mancha, Jonathan D King, Emmanuel S Miri, Bridget Okoeguale, Emily P Griswold, Frank O Richards
Nigeria has the largest population at risk for lymphatic filariasis (LF) in Africa. This study used a transmission assessment survey (TAS) to determine whether mass drug administration (MDA) for LF could stop in 21 districts, divided into four evaluation units (EUs), of Plateau and Nasarawa States, Nigeria, after 8-12 years of annual albendazole-ivermectin treatment. A total of 7,131 first- and second-year primary school children (approximately 6-7 years old) were tested for LF antigen by immunochromatographic test (ICT) from May to June 2012...
July 24, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28742006/flavobacterium-soyangense-sp-nov-a-psychrotolerant-bacterium-isolated-from-an-oligotrophic-freshwater-lake
#9
Gi Gyun Nam, Yochan Joung, Miri Park, Suhyun Kim, Hyoung Tae Jeon, Jang-Cheon Cho
A bacterial strain, designated IMCC26223T, was isolated from an oligotrophic freshwater lake, Lake Soyang, Korea. Cells of strain IMCC26223T were Gram-staining negative, strictly aerobic, non-motile and short-rod-shaped. Growth occurred at pH 6-8 (optimum, pH 7.0), at 4-25 °C (optimum, 15 °C) and with 0-0.5 % (w/v) NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain IMCC26223T was identified as a member of the genus Flavobacterium and most closely related to Flavobacterium fluvii H7T (97...
July 26, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28740485/tuftsin-phosphorylcholine-maintains-normal-gut-microbiota-in-collagen-induced-arthritic-mice
#10
Hila Ben-Amram, Tomer Bashi, Nir Werbner, Hadar Neuman, Mati Fridkin, Miri Blank, Yehuda Shoenfeld, Omry Koren
Rheumatoid arthritis (RA) is characterized by chronic autoinflammation of the joints, with a prevalence of about 1% in Western populations. Evidence in recent years has linked RA to changes in the gut microbiota (dysbiosis). Interestingly, helminths have been shown to have therapeutic activity in RA. Specifically, a glycoprotein containing phosphorylcholine (PC) extracted from helminths was found to have immunomodulatory activity. We have previously developed a novel chimeric compound composed of tuftsin-PC (TPC) that attenuates the joint destruction in mice with collagen-induced arthritis (CIA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28735748/behaviorally-selective-engagement-of-short-latency-effector-pathways-by-motor-cortex
#11
Andrew Miri, Claire L Warriner, Jeffrey S Seely, Gamaleldin F Elsayed, John P Cunningham, Mark M Churchland, Thomas M Jessell
Blocking motor cortical output with lesions or pharmacological inactivation has identified movements that require motor cortex. Yet, when and how motor cortex influences muscle activity during movement execution remains unresolved. We addressed this ambiguity using measurement and perturbation of motor cortical activity together with electromyography in mice during two forelimb movements that differ in their requirement for cortical involvement. Rapid optogenetic silencing and electrical stimulation indicated that short-latency pathways linking motor cortex with spinal motor neurons are selectively activated during one behavior...
August 2, 2017: Neuron
https://www.readbyqxmd.com/read/28728765/sense-of-coherence-and-parenting-representation-among-parents-of-adolescents-with-type-1-diabetes
#12
Alon Goldberg, Miri Scharf, Hadas Wiseman
INTRODUCTION: This study examines the association between parental sense of coherence (SOC) and maternal and paternal representations of parents of adolescents diagnosed with type 1 diabetes (IDDM). METHOD: Seventy five mothers and fathers of adolescents (age 13-18) diagnosed with IDDM, were recruited. Data were gathered from a demographic and SOC questionnaires, and the Parenting Representations Interview (PRI-A). RESULTS: A significant association was found between mothers' and fathers' SOC and a more balanced description of parenting, and positive correlations between mothers' and fathers' SOC and their representations of the self as parent, representations of the adolescent, and relationships representations...
July 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28728041/multi-structure-docking-analysis-of-bace1-crystal-structures-and-non-peptidic-ligands
#13
Zahra Haghighijoo, Bahram Hemmateenejad, Najmeh Edraki, Ramin Miri, Saeed Emami
In order to design novel non-peptidic inhibitors of BACE1, many research groups have attempted using computational studies including docking analyses. Since there are too many 3D structures for BACE1 in the protein database, the selection of suitable crystal structures is a key prerequisite for the successful application of molecular docking. We employed a multi-structure docking protocol. In which 615 ligands' structures were docked into 150 BACE1 structures. The large number of the resultant docking scores were post-processed by different data analysis methods including exploratory data analysis, regression analysis and discriminant analysis...
June 28, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28724200/effect-of-memantine-on-serum-levels-of-neuron-specific-enolase-and-on-the-glasgow-coma-scale-in-patients-with-moderate-traumatic-brain-injury
#14
Majid Mokhtari, Hossein Nayeb-Aghaei, Mehran Kouchek, Mir Mohammad Miri, Reza Goharani, Arash Amoozandeh, Sina Akhavan Salamat, Mohammad Sistanizad
Traumatic brain injury (TBI) is a major cause of disability and death globally. Despite significant progress in neuromonitoring and neuroprotection, pharmacological interventions have failed to generate favorable results. We examined the effect of memantine on serum levels of neuron-specific enolase (NSE), a marker of neuronal damage, and the Glasgow Coma Scale (GCS) in patients with moderate TBI. Patients were randomly assigned to the control group (who received standard TBI management) and the treatment group (who, alongside their standard management, received enteral memantine 30 mg twice daily for 7 days)...
July 19, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28718636/long-chain-alkyl-esters-of-hydroxycinnamic-acids-as-promising-anticancer-agents-selective-induction-of-apoptosis-in-cancer-cells
#15
José C J M D S Menezes, Najmeh Edraki, Shrivallabh P Kamat, Mahsima Khoshneviszadeh, Zahra Kayani, Hossein Hadavand Mirzaei, Ramin Miri, Nasrollah Erfani, Maryam Nejati, José A S Cavaleiro, Tiago Silva, Luciano Saso, Fernanda Borges, Omidreza Firuzi
Cancer is the major cause of morbidity and mortality worldwide. Hydroxycinnamic acids (HCAs) are naturally occurring compounds and their alkyl esters may possess enhanced biological activities. We evaluated C4, C14, C16, and C18 alkyl esters of p-coumaric, ferulic, sinapic, and caffeic acids (19 compounds) for their cytotoxic activity against four human cancer cells and also examined their effect on cell cycle alteration and apoptosis induction. The tetradecyl (1c) and hexadecyl (1d) esters of p-coumaric acid and tetradecyl ester of caffeic acid (4c), but not the parental HCAs, were selectively effective against MOLT-4 (human lymphoblastic leukemia) cells with IC50 values of 0...
August 8, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28713497/study-on-attitudes-of-students-of-islamic-azad-university-tehran-medical-branch-toward-food-safety-2016
#16
Ali Miri, Mohsen Poursadeghiyan, Mohammad Mehdi Baneshi, Hamed Biglari, Ahmad Reza Yari, Alireza Khammar
BACKGROUND: Given the importance of high-quality healthy food for humans, contamination control is the most important concern for healthy staff. AIM: To determine the attitudes of students at Islamic Azad University (Tehran Medical Branch) toward food safety. METHODS: This cross-sectional and analytic-descriptive study was conducted on 326 students of Azad University of Medical Sciences in 2016. A self-made questionnaire consisting of 40 questions was used...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28705338/-femoropopliteal-angioplasty-short-and-mid-term-results
#17
M Ben Hammamia, M Ben Mrad, B Derbel, R Miri, J Ziadi, F Ghedira, R Denguir, T Kalfat
BACKGROUND: Percutaneous endovascular therapy is becoming a primary option for managing femoropopliteal occlusive disease. The purpose of this study was to evaluate the mid-term results of endovascular treatment of femoropopliteal arterial disease. METHODS: Femoropopliteal percutaneous transluminal angioplasty was performed on 162 consecutive limbs (160 patients) from January 2006 to January 2016. RESULTS: In our study, 87.6% of patients had critical limb ischemia...
July 2017: J Med Vasc
https://www.readbyqxmd.com/read/28702146/are-polymorphisms-in-mtrr-a66g-and-mthfr-c677t-genes-associated-with-congenital-heart-diseases-in-iranian-population
#18
Noormohammad Noori, Ebrahim Miri-Moghaddam, Asieh Dejkam, Yasman Garmie, Ali Bazi
BACKGROUND: The 5, 10-methyleneterahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) are two essential enzymes involved in folate metabolism. The relationship between genetic polymorphisms and congenital heart defects (CHDs) is inconsistent. Our aim was to investigate the association between two well-known polymorphisms of MTHFR and MTRR genes, C677T and A66G, respectively, and CHDs in Iranian patients. METHODS: We enrolled 74 patients with ventricular septal defect (VSD) and 79 with tetralogy of fallot (TOF) along with 147 healthy controls...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28700690/inactivation-of-human-dgat2-by-oxidative-stress-on-cysteine-residues
#19
Sunhee Jung, Miri Choi, Kwangman Choi, Eun Bin Kwon, Mingu Kang, Dong-Eun Kim, Hyejeong Jeong, Janghwan Kim, Jong Heon Kim, Mun Ock Kim, Sang-Bae Han, Sungchan Cho
Diacylglycerol acyltransferases (DGATs) have a crucial role in the biosynthesis of triacylglycerol (TG), the major storage form of metabolic energy in eukaryotic organisms. Even though DGAT2, one of two distinct DGATs, has a vital role in TG biosynthesis, little is known about the regulation of DGAT2 activity. In this study, we examined the role of cysteine and its oxidation in the enzymatic activity of human DGAT2 in vitro. Human DGAT2 activity was considerably inhibited not only by thiol-modifying reagents (NEM and IA) but also by ROS-related chemicals (H2O2 and β-lapachone), while human DGAT1 and GPAT1 were little affected...
2017: PloS One
https://www.readbyqxmd.com/read/28694139/systematic-review-and-meta-analysis-of-the-nitrate-reductase-assay-for-drug-susceptibility-testing-of-mycobacterium-tuberculosis-and-the-detection-limits-in-liquid-medium
#20
Miri Kwak, Won-Kyu Lee, Young Ju Lim, Seung Heon Lee, Sungweon Ryoo
Recently, the need for rapid, reliable, and low-cost drug susceptibility testing (DST) methods has increased due to the emergence of multidrug-resistant Mycobacterium tuberculosis. Colorimetric methods of DST provide results more quickly than standard culture methods and are inexpensive than molecular methods. Thus, colorimetric methods, such as the nitrate reductase assay (NRA), are being recommended. We searched Medline PubMed for reports on the NRA for DST of M. tuberculosis written in English and published within the last five years...
July 8, 2017: Journal of Microbiological Methods
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