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https://www.readbyqxmd.com/read/28527303/insulin-therapy-in-neonatal-diabetes-mellitus-a-review-of-the-literature
#1
REVIEW
Ivana Rabbone, Fabrizio Barbetti, Raffaella Gentilella, Gilberto Mossetto, Riccardo Bonfanti, Claudio Maffeis, Dario Iafusco, Elvira Piccinno
AIMS: Neonatal diabetes mellitus (NDM) is a rare disorder, and guidance is limited regarding its optimal management. We reviewed insulin usage in NDM, with a focus on continuous subcutaneous insulin infusion (CSII). METHODS: A PubMed search identified 40 reports of patients with NDM treated with insulin published between 1994 and 2016. RESULTS: Data concerning treatment of NDM are limited. CSII resolves some of the issues associated with insulin therapy in neonates...
April 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28526792/environmental-spread-of-ndm-1-producing-multi-drug-resistant-bacteria-in-dhaka-bangladesh
#2
Mohammad Aminul Islam, Moydul Islam, Rashedul Hasan, M Iqbal Hossain, Ashikun Nabi, Mahdia Rahman, Wil H F Goessens, Hubert P Endtz, Alexandria B Boehm, Shah M Faruque
Resistance to carbapenem antibiotics through the production of New Delhi Metallo-β-lactamase-1 (NDM-1) constitutes an emerging challenge in the treatment of bacterial infections. To monitor possible source of spread of these organisms in Dhaka, Bangladesh, we conducted comparative analysis of waste water samples from hospital adjacent areas (HAR) and from community areas (COM) as well as public tap water samples for the occurrence and characteristics of NDM-1 producing bacteria. Of 72 HAR samples tested 51 (71%) were positive for NDM-1-producing bacteria as evidenced by phenotypic tests and the presence of blaNDM-1 gene, compared to 5 of 41 (12...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28515215/an-outbreak-of-ndm-1-producing-klebsiella-pneumoniae-in-a-dutch-hospital-with-interspecies-transfer-of-the-resistance-plasmid-and-unexpected-occurrence-in-unrelated-healthcare-centers
#3
Thijs Bosch, Suzanne P M Lutgens, Mirjam H A Hermans, Peter C Wever, Peter M Schneeberger, Nicole H M Renders, Alexander C A P Leenders, Jan A J W Kluytmans, Annelot Schoffelen, Daan Notermans, Sandra Witteveen, Erik Bathoorn, Leo M Schouls
Introduction. In the Netherlands, the number of cases with New Delhi metallo-beta-lactamase (NDM)-positive Enterobacteriaceae is low. Here, we report an outbreak of NDM-1 producing Klebsiella pneumoniae in a Dutch hospital with interspecies transfer of the resistance plasmid and unexpected occurrence in other unrelated healthcare centers (HCCs).Methods. Next-generation sequencing was performed on 250 carbapenemase-producing Enterobacteriaceae isolates including 42 NDM-positive isolates obtained from 29 persons at the outbreak site...
May 17, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28512093/population-genomic-analysis-of-1-777-extended-spectrum-beta-lactamase-producing-klebsiella-pneumoniae-isolates-houston-texas-unexpected-abundance-of-clonal-group-307
#4
S Wesley Long, Randall J Olsen, Todd N Eagar, Stephen B Beres, Picheng Zhao, James J Davis, Thomas Brettin, Fangfang Xia, James M Musser
Klebsiella pneumoniae is a major human pathogen responsible for high morbidity and mortality rates. The emergence and spread of strains resistant to multiple antimicrobial agents and documented large nosocomial outbreaks are especially concerning. To develop new therapeutic strategies for K. pneumoniae, it is imperative to understand the population genomic structure of strains causing human infections. To address this knowledge gap, we sequenced the genomes of 1,777 extended-spectrum beta-lactamase-producing K...
May 16, 2017: MBio
https://www.readbyqxmd.com/read/28508147/identification-of-beta-lactamases-and-beta-lactam-related-proteins-in-human-pathogenic-bacteria-using-a-computational-search-approach
#5
Aniel Jessica Leticia Brambila-Tapia, Ernesto Perez-Rueda, Humberto Barrios, Nory Omayra Dávalos-Rodríguez, Ingrid Patricia Dávalos-Rodríguez, Ernesto Germán Cardona-Muñoz, Mario Salazar-Páramo
A systematic analysis of beta-lactamases based on comparative proteomics has not been performed thus far. In this report, we searched for the presence of beta-lactam-related proteins in 591 bacterial proteomes belonging to 52 species that are pathogenic to humans. The amino acid sequences for 19 different types of beta-lactamases (ACT, CARB, CifA, CMY, CTX, FOX, GES, GOB, IMP, IND, KPC, LEN, OKP, OXA, OXY, SHV, TEM, NDM, and VIM) were obtained from the ARG-ANNOT database and were used to construct 19 HMM profiles, which were used to identify potential beta-lactamases in the completely sequenced bacterial proteomes...
May 16, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28506721/first-report-of-ndm-1-producing-clinical-isolate-of-leclercia-adecarboxylata-in-spain
#6
Cristina Riazzo, Lorena López-Cerero, María Dolores Rojo-Martín, Yannick Hoyos-Mallecot, Felipe Fernández-Cuenca, Jose Luis Martín-Ruíz, Álvaro Pascual-Hernández, Thierry Naas, Jose María Navarro-Marí
We describe the case of NDM-1-producing Leclercia adecarboxylata recovered from the clinical sample of a patient hospitalized for a trauma-related injury to his foot. The isolate was resistant to all beta-lactams, quinolones, trimetroprim-sulfametoxazol, gentamicin and tobramicyn. The blaNDM-1 gene was located in a conjugative plasmid that also contained the blaSHV-12 gene and was preceded by a disrupted insertion sequence of ISAba125. The plasmid belongs to the incompatibility group X3, which is known to be an important vector for NDM-1 dissemination in China...
May 3, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28505562/ultra-fast-electronic-detection-of-antimicrobial-resistance-genes-using-isothermal-amplification-and-thin-film-transistor-sensors
#7
Chunxiao Hu, Sumit Kalsi, Ioannis Zeimpekis, Kai Sun, Peter Ashburn, Carrie Turner, J Mark Sutton, Hywel Morgan
A low cost thin-film transistor (TFT) nanoribbon (NR) sensor has been developed for rapid real-time detection of DNA amplification using an isothermal Recombinase Polymerase Amplification (RPA) method. The semiconductor chip measures DNA amplification through a pH change, rather than via fluorescence. The utility of the method was demonstrated by amplifying CTX-M and NDM, two genes that confer bacterial resistance to cephalosporins and carbapenems, respectively. It is shown that this approach provides extremely fast and sensitive detection...
May 9, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28505394/1-2-4-triazole-3-thione-compounds-as-inhibitors-of-di-zinc-metallo-%C3%AE-lactamases
#8
Laurent Sevaille, Laurent Gavara, Carine Bebrone, Filomena De Luca, Lionel Nauton, Maud Achard, Paola Mercuri, Silvia Tanfoni, Luisa Borgianni, Carole Guyon, Pauline Lonjon, Gülhan Turan-Zitouni, Julia Dzieciolowski, Katja Becker, Lionel Bénard, Ciaran Condon, Ludovic Maillard, Jean Martinez, Jean-Marie Frère, Otto Dideberg, Moreno Galleni, Jean-Denis Docquier, Jean-François Hernandez
Metallo-β-lactamases (MBL) cause resistance of Gram-negative bacteria to β-lactam antibiotics and are of serious concern because they can inactivate the last-resort carbapenems and because MBL inhibitors of clinical value are still lacking. We have previously identified the original binding mode of a 4-amino-1,2,4-triazole-3-thione compound, IIIA, within the di-zinc active site of the L1 MBL. Here, we present the crystallographic structure of a complex of L1 with the corresponding non-amino compound IIIB...
May 15, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28505330/acinetobacter-baumannii-transfers-the-blandm-1-gene-via-outer-membrane-vesicles
#9
Somdatta Chatterjee, Ayan Mondal, Shravani Mitra, Sulagna Basu
Objectives: To investigate the transmission of the gene encoding New Delhi metallo-β-lactamase-1 ( bla NDM-1 ) through outer membrane vesicles (OMVs) released from an Acinetobacter baumannii strain (A_115). Methods: Isolation and purification of OMVs by density gradient from a carbapenem-resistant clinical strain of A. baumannii harbouring plasmid-mediated bla NDM-1 and aac(6')-Ib-cr genes was performed. DNA was purified from the OMVs and used for PCR and dot-blot analysis...
May 12, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28490008/an-uncommon-st1224-ndm-1-producing-klebsiella-pneumoniae-isolated-from-the-bloodstream-of-a-leukemia-patient-in-china
#10
Xiaoxiao Zhang, Jia Du, Cui Zhou, Jianming Cao, Hong Lu, Haiyang Liu, Wenzi Bi, Tieli Zhou
AIMS: This study aimed to analyze the clinical data and characteristics of an NDM-1 (New Delhi metallo-β-lactamase-1)-producing Klebsiella pneumoniae isolated from the bloodstream of a leukemia patient. MATERIALS AND METHODS: A retrospective analysis was used for the clinical data of the patient. The modified Hodge test (MHT) and ethylenediaminetetraacetic acid (EDTA)-disk synergy test were used for detecting metallo-β-lactamase. Antibiotic resistance was determined using the agar dilution method...
May 11, 2017: Chemotherapy
https://www.readbyqxmd.com/read/28489087/hydrolysis-of-cephalexin-and-meropenem-by-new-delhi-metallo-%C3%AE-lactamase-the-substrate-protonation-mechanism-is-drug-dependent
#11
Chandan Kumar Das, Nisanth N Nair
Emergence of antibiotic resistance due to New Delhi metallo-β-lactamase (NDM-1) bacterial enzymes is of great concern due to their ability to hydrolyze a wide range of antibiotics. There are ongoing efforts to obtain the atomistic details of the hydrolysis mechanism in order to develop inhibitors for NDM-1. In particular, it remains elusive how drug molecules of different families of antibiotics are hydrolyzed by NDM-1 in an efficient manner. Here we report the detailed molecular mechanism of NDM-1 catalyzed hydrolysis of cephalexin, a cephalosporin family drug, and meropenem, a carbapenem family drug...
May 10, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28487071/diversity-oriented-sustainable-synthesis-of-antimicrobial-spiropyrrolidine-thiapyrrolizidine-oxindole-derivatives-new-ligands-for-a-metallo-%C3%AE-lactamase-from-klebsiella-pneumonia
#12
Anshu Dandia, Shahnawaz Khan, Pragya Soni, Aayushi Indora, Dinesh Kumar Mahawar, Prateek Pandya, Chetan Singh Chauhan
A simple, environmentally benign and highly proficient microwave assisted one-pot approach for the synthesis of antimicrobial spiropyrrolidine/thiapyrrolizidine oxindole derivatives is reported assembling two pharmacophoric moieties (1,3-indanedione and pyrrolidine/thiapyrrolizidine) in a single molecular framework via three-component 1,3-dipolar cycloaddition reaction of substituted isatin, sarcosine/1,3-thiazoles-4-carboxylic acid and Knoevenagel adduct (2-Cyano-3-phenyl-acrylic acid ethyl ester or 2-Benzylidene-malononitrile) in 2,2,2-trifluoroethanol as a reusable green solvent...
April 27, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28486840/molecular-characterization-of-carbapenem-resistant-enterobacteriaceae-yields-increasing-rates-of-ndm-1-carbapenemases-and-colistin-resistance-in-an-oxa-48-endemic-area
#13
Zeynep Cizmeci, Elif Aktas, Baris Otlu, Ozlem Acikgoz, Seyhan Ordekci
We aimed to characterize carbapenem-resistant isolates in a tertiary hospital in Istanbul, Turkey, high-prevelance area for OXA-48 producers. About 76 Enterobacteriaceae clinical isolates were included. Carbapenemase production was detected by Carbapenem Inactivation Method and carbapenemase genes were investigated by PCR. The clonal relationships were evaluated by AP-PCR. Nineteen Klebsiella pneumoniae isolates were colistin resistant. About 75 isolates yielded carbapenemase by CIM. 52 OXA-48, 17 NDM-1 and 2 VIM-5 carbapenemase genes were detected...
May 9, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28485708/molecular-study-of-carbapenemase-genes-in-clinical-isolates-of-enterobacteriaceae-resistant-to-carbapenems-and-determining-their-clonal-relationship-using-pulsed-field-gel-electrophoresis
#14
Fereshteh Shahcheraghi, Mohammad Mehdi Aslani, Hassan Mahmoudi, Zahra Karimitabar, Hamid Solgi, Abbas Bahador, Mohammad Yousef Alikhani
PURPOSE: Enterobacteriaceae is a large family of Gram-negative bacteria that are considered as normal gut flora. They are the most common human pathogens. The main objective of this study was to investigate the carbapenemase genes in clinical isolates of Enterobacteriaceae resistant to carbapenem antibiotics and determine their clonal relationship using pulsed-field gel electrophoresis (PFGE). METHODOLOGY: In the present study, bacteria were isolated and identified via conventional biochemical tests and API 20NE...
May 9, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28476242/evaluation-of-the-carbapenem-inactivation-method-cim-for-detecting-carbapenemase-activity-in-enterobacteria
#15
A Aguirre-Quiñonero, M E Cano, D Gamal, J Calvo, L Martínez-Martínez
OBJECTIVES: The objective of this study was to evaluate the accuracy of the CIM test in the detection of carbapenemase activity in 124 strains of Enterobacteriaceae. METHODS: A panel of 124 previously characterized Enterobacteriaceae was tested: 77 strains producing the following carbapenemase families: KPC (n = 14), GES (n = 22), NDM (n = 19), VIM (n = 4), IMP (n = 4) and OXA-48 (n = 14) and 47 non-carbapenemase producers. For the CIM method, an active susceptibility meropenem disc was exposed to a bacterial suspension of a test strain; when a carbapenemase is produced, the antibiotic is inactivated allowing uninhibited growth of an indicator strain after overnight incubation...
March 16, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28473912/high-burden-of-carbapenem-resistant-enterobacteriaceae-cre-fecal-carriage-at-a-teaching-hospital-cost-effectiveness-of-screening-in-low-resource-setting
#16
Abdul Rahman Zaidah, Nurul Izzah Mohammad, Siti Suraiya, Azian Harun
BACKGROUND: Infections by multidrug-resistant gram-negative bacteria (MDR-GNB) have been continuously growing and pose challenge to health institution globally. Carbapenem-resistant Enterobacteriacea (CRE) was identified as one of the MDR-GNB which has limited treatment options and higher mortality compared to those of sensitive strains. We report an increased burden of CRE fecal carriage at a hospital in the North-eastern region of Malaysia. METHODS: A retrospective descriptive study from August 2013 to December 2015 was conducted in the Medical Microbiology & Parasitology laboratory of Hospital Universiti Sains Malaysia, which is a tertiary teaching hospital with more than 700 beds...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28473463/recessively-inherited-lrba-mutations-cause-autoimmunity-presenting-as-neonatal-diabetes
#17
Matthew B Johnson, Elisa De Franco, Hana Lango-Allen, Aisha Al Senani, Nancy Elbarbary, Zeynep Siklar, Merih Berberoglu, Zineb Imane, Alireza Haghighi, Irfan Ullah, Saif Alyaarubi, Daphne Gardner, Sian Ellard, Andrew T Hattersley, Sarah E Flanagan
Young-onset autoimmune diabetes associated with additional autoimmunity usually reflects a polygenic predisposition but rare cases result from monogenic autoimmunity. Diagnosing monogenic autoimmunity is crucial for patients' prognosis and clinical management. We sought to identify novel genetic causes of autoimmunity presenting with neonatal diabetes (NDM; diagnosis <6 months).We performed exome sequencing in a patient with NDM and autoimmune lymphoproliferative syndrome and his unrelated, unaffected parents and identified compound heterozygous null mutations in LRBA Biallelic LRBA mutations cause Common Variable Immunodeficiency-8, however NDM has not been confirmed in this disorder...
May 4, 2017: Diabetes
https://www.readbyqxmd.com/read/28470309/characterization-of-non-dialyzable-constituents-from-cranberry-juice-that-inhibit-adhesion-co-aggregation-and-biofilm-formation-by-oral-bacteria
#18
C C Neto, K A Penndorf, M Feldman, S Meron-Sudai, Z Zakay-Rones, D Steinberg, M Fridman, Y Kashman, I Ginsburg, I Ofek, E I Weiss
An extract prepared from cranberry juice by dialysis known as nondialyzable material (NDM) has been shown previously to possess anti-adhesion activity toward microbial species including oral bacteria, uropathogenic Escherichia coli and Helicobacter pylori. Bioassay-guided fractionation of cranberry NDM was therefore undertaken to identify the anti-adhesive constituents. An aqueous acetone-soluble fraction (NDMac) obtained from Sephadex LH-20 inhibited adhesion-linked activities by oral bacteria, including co-aggregation of oral bacteria Fusobacterium nucleatum with Streptococcus sanguinis or Porphyromonas gingivalis, and biofilm formation by Streptococcus mutans...
May 4, 2017: Food & Function
https://www.readbyqxmd.com/read/28462854/characterization-of-carbapenemases-esbls-and-plasmid-mediated-quinolone-determinants-in-carbapenem-insensitive-escherichia-coli-and-klebsiella-pneumoniae-in-riyadh-hospitals
#19
Mohamed H Al-Agamy, Abduelah Aljallal, Hesham H Radwan, Atef M Shibl
The main objective of this work was to characterize carbapenemases, extended-spectrum β-lactamases (ESBLs), and plasmid-mediated quinolone resistance (PMQR) among carbapenem-insensitive Klebsiella pneumoniae and Escherichia coli clinical isolates which were isolated from three hospitals in Riyadh. Thirty-one carbapenem-insensitive isolates (21 K. pneumoniae and 10 E. coli) were recovered from March 2014 to May 2014. Susceptibility testing and phenotypic detection tests were used to characterize the classes of β-lactamases...
April 24, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28461314/ndm-5-and-oxa-181-beta-lactamases-a-significant-threat-continues-to-spread-in-the-americas
#20
Laura J Rojas, Andrea M Hujer, Susan D Rudin, Meredith S Wright, T Nicholas Domitrovic, Steven H Marshall, Kristine M Hujer, Sandra S Richter, Eric Cober, Federico Perez, Mark D Adams, David van Duin, Robert A Bonomo
Among Gram-negative bacteria, carbapenem resistant (CR) infections pose a serious and life threatening challenge. Here, the CRACKLE network reports a sentinel detection and characterization of a CR Klebsiella pneumoniae ST147 isolate harboring blaNDM-5 and blaOXA-181, from a young man who underwent abdominal surgery in India. blaNDM-5 was located on an IncFII plasmid of ≈ 90Kb, while blaOXA-181 was chromosomally encoded. Resistome and genome analysis demonstrated multiple copies of the transposable element IS26 and a "hotspot region" in the IncFII plasmid...
May 1, 2017: Antimicrobial Agents and Chemotherapy
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