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https://www.readbyqxmd.com/read/28334294/an-examination-of-the-role-of-l-glutamate-and-inosine-5-monophosphate-in-hedonic-taste-guided-behavior-by-mice-lacking-the-t1r1-t1r3-receptor
#1
Ginger D Blonde, Alan C Spector
The heterodimeric T1R1 + T1R3 receptor is considered critical for normal signaling of L-glutamate and 5'-ribonucleotides in the oral cavity. However, some taste-guided responsiveness remains in mice lacking one subunit of the receptor, suggesting that other receptors are sufficient to support some behaviors. Here, mice lacking both receptor subunits (KO) and wild-type (WT, both n = 13) mice were tested in a battery of behavioral tests. Mice were trained and tested in gustometers with a concentration series of Maltrin-580, a maltodextrin, in a brief-access test (10-s trials) as a positive control...
March 17, 2017: Chemical Senses
https://www.readbyqxmd.com/read/28333363/evaluation-of-the-%C3%AE-carba%C3%A2-test-a-colorimetric-test-for-the-rapid-detection-of-carbapenemase-activity-in-gram-negative-bacilli
#2
Sandrine Bernabeu, Laurent Dortet, Thierry Naas
Objectives: There is an urgent need for accurate and fast diagnostic tests to identify carbapenemase-producing bacteria. Here, we have evaluated a novel colorimetric test (the β-CARBA™ test; Bio-Rad) to detect carbapenemase-producing Gram-negative bacilli from cultured colonies. Methods: The performance of the β-CARBA™ test was compared with that of the Carba NP test (or the CarbAcineto NP test) and RAPIDEC ® CARBA NP (bioMérieux) using a collection of 290 isolates with characterized β-lactamase content...
March 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333332/wck-5222-cefepime-zidebactam-antimicrobial-activity-tested-against-gram-negative-organisms-producing-clinically-relevant-%C3%AE-lactamases
#3
Helio S Sader, Paul R Rhomberg, Robert K Flamm, Ronald N Jones, Mariana Castanheira
Background: Zidebactam is a β-lactam enhancer antibiotic with a dual mechanism of action involving binding to Gram-negative PBP2 and β-lactamase inhibition. Cefepime combined with zidebactam (WCK 5222) is under clinical development for treatment of Gram-negative infections. Objectives: To evaluate the in vitro activities of cefepime and zidebactam separately and combined at 1:1 and 2:1 ratios when tested against Gram-negative organisms producing the most clinically relevant β-lactamase types...
March 18, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28328946/a-randomized-clinical-trial-in-preterm-infants-on-the-effects-of-a-home-based-early-intervention-with-the-caretoy-system
#4
Giuseppina Sgandurra, Jakob Lorentzen, Emanuela Inguaggiato, Laura Bartalena, Elena Beani, Francesca Cecchi, Paolo Dario, Matteo Giampietri, Gorm Greisen, Anna Herskind, Jens Bo Nielsen, Giuseppe Rossi, Giovanni Cioni
CareToy system is an innovative tele-rehabilitative tool, useful in providing intensive, individualized, home-based, family-centred Early Intervention (EI) in infants. Our aim was to evaluate, through a Randomized Clinical Trial (RCT) study, the effects of CareToy intervention on early motor and visual development in preterm infants. 41 preterm infants (range age: 3.0-5.9 months of corrected age) were enrolled and randomized into two groups, CareToy and Standard Care. 19 infants randomized in CareToy group performed a 4-week CareToy program, while 22 allocated to control group completed 4 weeks of Standard Care...
2017: PloS One
https://www.readbyqxmd.com/read/28325731/effects-of-genetic-deletion-of-soluble-5-nucleotidases-nt5c1a-and-nt5c2-on-ampk-activation-and-nucleotide-levels-in-contracting-mouse-skeletal-muscles
#5
Samanta Kviklyte, Didier Vertommen, Xavier Yerna, Harriet Andersén, Xiufeng Xu, Philippe Gailly, Mohammad Bohlooly-Y, Jan Oscarsson, Mark H Rider
AMP-activated protein kinase (AMPK) plays a key role in energy homeostasis and is activated in response to contraction-induced ATP depletion in skeletal muscle via a rise in intracellular AMP/ADP concentrations. AMP can be deaminated by AMP-deaminase to IMP, which is hydrolysed to inosine by cytosolic 5'-nucleotidase-II (NT5C2). AMP can also be hydrolysed to adenosine by cytosolic 5'-nucleotidase-IA (NT5C1A). Previous gene silencing and overexpression studies indicated control of AMPK activation by NT5C enzymes...
March 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28314834/internal-limiting-membrane-peeling-or-not-a-systematic-review-and-meta-analysis-of-idiopathic-macular-pucker-surgery
#6
Xiao-Ling Fang, Yao Tong, Ya-Li Zhou, Pei-Quan Zhao, Zhao-Yang Wang
PURPOSE: To determine whether internal limiting membrane (ILM) peeling improves anatomical and functional outcomes in idiopathic macular pucker (IMP)/epiretinal membrane (ERM) surgery in this systematic review and meta-analysis. METHODS: We searched the PubMed, Medline, Web of Science, Cochrane, Ovid MEDLINE, ClinicalTrials.gov and CNKI databases for studies published before 15 September 2016. The eligibility criteria included studies comparing ILM peeling versus no-peeling for IMP surgery...
March 17, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28303824/matrix-assisted-laser-desorption-ionisation-time-of-flight-mass-spectrometry-rapid-detection-of-carbapenamase-activity-in-acinetobacter-baumannii-isolates
#7
Noha Abouseada, May Raouf, Eman El-Attar, Pacinte Moez
INTRODUCTION: Carbapenamase-producing Acinetobacter baumannii are an increasing threat in hospitals and Intensive Care Units. Accurate and rapid detection of carbapenamase producers has a great impact on patient improvement and aids in implementation of infection control measures. AIM: In this study, we describe the use of matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI TOF MS) to identify carbapenamase-producing A. baumannii isolates in up to 3 h...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28302442/symptoms-endoscopic-findings-and-reflux-monitoring-results-in-candidates-for-bariatric-surgery
#8
Benjamin Heimgartner, Marcus Herzig, Yves Borbély, Dino Kröll, Philipp Nett, Radu Tutuian
BACKGROUND: Gastroesophageal reflux disease (GERD) is common in patients with obesity. Diagnosing GERD is important as bariatric operations have different influence on GERD. We assessed reflux symptoms and objective findings prior to surgery. METHODS: Work-up included esophageal symptoms quantification by VAS-scores, esophagogastroduodenoscopy (EGD) and 24-h impedance-pH (imp-pH) monitoring off PPI therapy. Imp-pH was classified as abnormal if either %time pH<4 was abnormal, total number of reflux episodes was elevated or symptom index (SI) was positive...
February 3, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28301328/evaluate-muscle-tension-using-intramuscular-pressure-device-in-rabbit-tibialis-anterior-model-for-improved-tendon-transfer-surgery
#9
Loribeth Evertz, Liselotte Bulstra, Alexander Shin, Kenton R Kaufman
Quantitative evaluation of passive tension in a muscle is important in tendon transfer surgeries, however, currently appropriate intraoperative measurement techniques are lacking. Intramuscular pressure (IMP) is explored as an application to access force. The tibialis anterior (TA) in New Zealand white rabbits (n=9) was used to test the hypothesis of a strong correlation between the IMP, muscle force, and length. This study also helped to develop intraoperative techniques for future human studies evaluating various insertion techniques (parallel vs...
March 16, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28298454/in-vitro-activity-of-imipenem-against-carbapenemase-positive-enterobacteriaceae-smart-global-surveillance-program-2008-2014
#10
James A Karlowsky, Sibylle H Lob, Krystyna M Kazmierczak, Robert E Badal, Katherine Young, Mary R Motyl, Daniel F Sahm
The Study for Monitoring Antimicrobial Resistance Trends (SMART) global surveillance program collected 103,960 isolates of Enterobacteriaceae from 2008 to 2014. From this isolate collection all ertapenem-non-susceptible isolates (MIC, ≥1 μg/ml; n = 3,428) and 9,371 isolates of Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, and Proteus mirabilis with an ertapenem-susceptible extended-spectrum β-lactamase (ESBL)-positive phenotype were assessed for the presence of common carbapenemase genes using the Check-MDR CT101 microarray (Check-Points, Wageningen, the Netherlands) and published multiplex PCR assays...
March 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28293307/sensitivity-to-antimicrobial-drugs-of-pseudomonas-aeruginosa-extreme-resistant-strains-isolated-in-the-major-hospitals-of-central-kazakhstan
#11
Ilya S Azizov, Alyona V Lavrinenko, Ilya A Belyaev, Dmitry B Babenko, Natalya A Shambilova, Nelya M Bissenova
AIM: The article presents the current data on the sensitivity of the main 37 strains of eXtremaly Drugs Resistance (XDR) category to anti-pseudomonas drugs. MATERIAL AND METHODS: The strains were collected during the prospective multicenter study in large multidisciplinary hospitals of Central Kazakhstan. Susceptibility to antimicrobial drugs was carried out by disk method and the serial dilution method with the interpretation of the results according to EUCAST criteria...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28282902/lactobacillus-gasseri-pa-3-uses-the-purines-imp-inosine-and-hypoxanthine-and-reduces-their-absorption-in-rats
#12
Naruomi Yamada, Chizuru Saito-Iwamoto, Marie Nakamura, Misato Soeda, Yoshika Chiba, Hiroshi Kano, Yukio Asami
Excessive intake of purine-rich foods elevates serum levels of uric acid. Animal and fish meats contain high amounts of inosine and its related purines, and the reduction of taking those purines is crucial for the improvement of serum uric acid levels. We previously showed that Lactobacillus gasseri PA-3 (PA-3) incorporates adenosine and its related purines and that oral treatment with PA-3 reduced adenosine absorption in rats. This study investigated whether PA-3 also incorporates IMP (inosine 5'-monophosphate), inosine, and hypoxanthine, and whether it reduces their absorption in rats...
March 8, 2017: Microorganisms
https://www.readbyqxmd.com/read/28271693/comparison-of-the-novel-oxa-48-and-kpc-k-set-assay-and-blue-carba-test-for-the-detection-of-carbapenemase-producing-enterobacteriaceae-using-pcr-as-a-reference-method
#13
Fatma Erdem, Ayham Abulaila, Zerrin Aktas, Oral Oncul
BACKGROUND: Rapid, simple, and accurate laboratory detection of carbapenemases is very important for proper antibiotic therapy and infection control. METHODS: In this study, carbapenem-nonsusceptible Enterobacteriaceae (CRE) isolates were used to evaluate the performance of a new lateral flow immunochromatographic (IC) assay, the OXA-48 and KPC K-SeT assay, and modified Blue-Carba test (BCT) for the rapid detection of OXA-48 carbapenemase in comparison with polymerase chain reaction (PCR) amplification...
March 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28261184/carbonyl-cyanide-m-chlorophenylhydrazine-cccp-reverses-resistance-to-colistin-but-not-to-carbapenems-and-tigecycline-in-multidrug-resistant-enterobacteriaceae
#14
John Osei Sekyere, Daniel G Amoako
Background: Carbapenems (CAR), colistin (CST), and tigecycline (TGC) alone or in combination therapy has become the last-resort antibiotics for treating infections caused by multidrug resistant (MDR) bacteria. However, resistance to these reserve antibiotics are increasingly being reported worldwide. Hence, the quest to find other agents that will synergistically restore the efficacy of these antibiotics have increased. Methods: Sixty-three clinical Enterobacteriaceae isolates comprising of Klebsiella pneumoniae (n = 24), Enterobacter spp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28254400/comparison-of-dosimetric-properties-among-four-commercial-multi-detector-computed-tomography-scanners
#15
Takeshi Ohno, Fujio Araki, Ryota Onizuka, Masahiro Hatemura, Toshiaki Shimonobou, Takashi Sakamoto, Shuichiro Okumura, Daichi Ideguchi, Keiichi Honda, Kenji Kawata
This study compared dosimetric properties among four commercial multi-detector CT (MDCT) scanners. The X-ray beam characteristics were obtained from photon intensity attenuation curves of aluminum and off-center ratio (OCR) profiles in air, which were measured with four commercial MDCT scanners. The absorbed dose for MDCT scanners was evaluated with Farmer ionization chamber measurements at the center and four peripheral points in the body- and head-type cylindrical water phantoms. Measured collected charge was converted to absorbed dose using a (60)Co absorbed dose-to-water calibration factor and Monte Carlo (MC)-calculated correction factors...
February 18, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28248971/clofibrate-inhibits-the-umami-savory-taste-of-glutamate
#16
Matthew Kochem, Paul A S Breslin
In humans, umami taste can increase the palatability of foods rich in the amino acids glutamate and aspartate and the 5'-ribonucleotides IMP and GMP. Umami taste is transduced, in part, by T1R1-T1R3, a heteromeric G-protein coupled receptor. Umami perception is inhibited by sodium lactisole, which binds to the T1R3 subunit in vitro. Lactisole is structurally similar to the fibrate drugs. Clofibric acid, a lipid lowering drug, also binds the T1R3 subunit in vitro. The purpose of this study was to determine whether clofibric acid inhibits the umami taste of glutamate in human subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28242658/gmp-and-imp-are-competitive-inhibitors-of-cmy-10-an-extended-spectrum-class-c-%C3%AE-lactamase
#17
Jung-Hyun Na, Young Jun An, Sun-Shin Cha
Nucleotides were effective in inhibiting the class C β-lactamase CMY-10. IMP was the most potent competitive inhibitor with the Ki value of 16.2 μM. The crystal structure of CMY-10 complexed with GMP or IMP revealed that nucleotides fit into the R2 subsite of the active site with a unique vertical binding mode where the phosphate group at one terminus is deeply bound in the subsite and the base at the other terminus faces the solvent.
February 27, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28242657/tn6350-a-novel-transposon-carrying-pyocin-s8-genes-encoding-a-bacteriocin-with-activity-against-carbapenemase-producing-pseudomonas-aeruginosa
#18
Helena Turano, Fernando Gomes, Gesiele A Barros-Carvalho, Ralf Lopes, Louise Cerdeira, Luis E S Netto, Ana C Gales, Nilton Lincopan
A novel transposon belonging to the Tn3-like family was identified on the chromosome of a commensal strain of Pseudomonas aeruginosa ST2343. Tn6350 is 7,367 bp in size, harboring eight ORFs, an ATPase (IS481 family), a transposase (DDE catalytic type), a Tn3 resolvase, three hypothetical proteins, and genes encoding the new pyocin S8 with their immunity protein. We show that pyocin S8 displays activity against carbapenemase-producing P. aeruginosa, including IMP-1, SPM-1, VIM-1, GES-5 and KPC-2 producers.
February 27, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28240251/development-of-a-pipeline-for-automated-high-throughput-analysis-of-paraspeckle-proteins-reveals-specific-roles-for-importin-%C3%AE-proteins
#19
Andrew T Major, Yoichi Miyamoto, Camden Y Lo, David A Jans, Kate L Loveland
We developed a large-scale, unbiased analysis method to measure how functional variations in importin (IMP) α2, IMPα4 and IMPα6 each influence PSPC1 and SFPQ nuclear accumulation and their localization to paraspeckles. This addresses the hypothesis that individual IMP protein activities determine cargo nuclear access to influence cell fate outcomes. We previously demonstrated that modulating IMPα2 levels alters paraspeckle protein 1 (PSPC1) nuclear accumulation and affects its localization into a subnuclear domain that affects RNA metabolism and cell survival, the paraspeckle...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28237912/vestibular-stimulation-improves-insight-into-illness-in-schizophrenia-spectrum-disorders
#20
Philip Gerretsen, David D Pothier, Carolyn Falls, Maxine Armstrong, Thushanthi Balakumar, Hiroyuki Uchida, David C Mamo, Bruce G Pollock, Ariel Graff-Guerrero
Impaired insight into illness (IMP-INS) is common among individuals with schizophrenia spectrum disorders (SSD), contributing to medication nonadherence and poor clinical outcomes. Caloric vestibular simulation (CVS) is typically used to assess peripheral vestibular system function. Left cold CVS is also a transiently effective treatment for IMP-INS and hemineglect secondary to right brain hemisphere stroke, and possibly for IMP-INS and mood stabilization in patients with SSD. Participants with SSD and moderate-to-severe IMP-INS participated in an exploratory double blind, crossover, randomized controlled study of the effects of CVS on IMP-INS...
February 13, 2017: Psychiatry Research
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