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https://www.readbyqxmd.com/read/29332105/the-emergence-of-carbapenem-resistant-klebsiella-pneumoniae-isolates-producing-oxa-48-and-ndm-in-the-southern-asir-province-saudi-arabia
#1
Ibrahim A Al-Zahrani, Bander A Alsiri
To identify the prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) and the most common types of cabapenemases among CRKP in the Southern (Asir) province hospitals, Saudi Arabia. Methods: The cross-sectional study was conducted between late April and September in 2015. A total of 54 Klebsiella pneumoniae (K. pneumoniae) isolates with reduced sensitivity to carbapenems were obtained from various clinical specimens of the 2 largest hospitals in the Southern province. Minimum inhibitory concentrations (MICs) of carbapenems were confirmed using E-test...
January 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29331472/influence-of-partially-demineralized-milk-proteins-on-rheological-properties-and-microstructure-of-acid-gels
#2
G H Meletharayil, H A Patel, L E Metzger, C Marella, T Huppertz
Innovative clean label processes employed in the manufacture of acid gels are targeted to modify the structure of proteins that contribute to rheological properties. In the present study, CO2-treated milk protein concentrate powder with 80% protein in dry matter (TMPC80) was mixed with nonfat dry milk (NDM) in different ratios for the manufacture of acid gels. Dispersions of NDM and TMPC80 that provided 100, 90, 70, and 40% of protein from NDM were reconstituted to 4.0% (wt/wt) protein and 12.0% (wt/wt) total solids...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29329106/genetic-mutations-associated-with-neonatal-diabetes-mellitus-in-omani-patients
#3
Aisha Al Senani, Nishath Hamza, Hanan Al Azkawi, Manal Al Kharusi, Nashat Al Sukaiti, Maryam Al Badi, Moza Al Yahyai, Matthew Johnson, Elisa De Franco, Sarah Flanagan, Andrew Hattersley, Sian Ellard, Waad-Allah Mula-Abed
BACKGROUND: Neonatal diabetes mellitus (NDM) is a rare disorder worldwide where diabetes is diagnosed in the first 6 months of life. However, Oman has a relatively high incidence of NDM. METHODS: In this study, we investigated the genetic etiologies underlying NDM and their prevalence in Oman. We collected a cohort of 24 NDM patients, with and without genetic diagnosis, referred to our center from 2007 to 2015. All patients without a genetic diagnosis were tested for mutations in 23 NDM-associated genes using a custom-targeted next-generation sequencing (NGS) panel and methylation analysis of the 6q24 locus...
January 12, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29323070/is-diabetes-mellitus-an-important-risk-factor-for-the-antibiotic-resistance-in-extraintestinal-pathogenic-escherichia-coli
#4
Arindam Chakraborty, Shalini Shenoy, Prabha Adhikari, Vishwas Saralaya, Satish Rao
Escherichia coli is a major cause of extraintestinal infections in all age group. However, the infection becomes more severe when patients have some underlying condition such as Diabetes Mellitus. The aim of the study was to determine whether diabetic mellitus may act as an important risk factor for the E. coli to express drug resistance property. This descriptive study was carried out in a multi-specialty tertiary care hospital. One hundred and twenty-seven E. coli isolates from diabetic patients, and one hundred seventy-three isolates from nondiabetic patients were studied...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321680/cryptic-transmission-of-st405-escherichia-coli-carrying-bla-ndm-4-in-hospital
#5
Xiaoxia Zhang, Yu Feng, Weilong Zhou, Alan McNally, Zhiyong Zong
Three carbapenem-resistant Escherichia coli were recovered from rectal swabs of different patients in a tertiary hospital and were found carrying bla NDM-4, an uncommon bla NDM variant. Genome sequences of the isolates were obtained using Illumina technology and the long-read MinION sequencer. The isolates belonged to ST405 and phylogenetic group D, a globally distributed lineage associated with antimicrobial resistance. In addition to bla NDM-4, the three isolates carried 14 known resistance genes including the extended-spectrum β-lactamase gene bla CTX-M-15...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29305569/emergence-of-insulin-resistance-following-empirical-glibenclamide-therapy-a-case-report-of-neonatal-diabetes-with-a-recessive-ins-gene-mutation
#6
Melek Yildiz, Teoman Akcay, Banu Aydin, Abdurrahman Akgun, Beyza Belde Dogan, Elisa De Franco, Sian Ellard, Hasan Onal
BACKGROUND: As KATP channel mutations are the most common cause of neonatal diabetes mellitus (NDM) and patients with these mutations can be treated with oral sulfonylureas, empiric therapy is a common practice for NDM patients. CASE PRESENTATION: A non-syndromic, small for gestational age baby born to first-degree consanguineous parents was diagnosed with NDM. Because of hypo- and hyperglycemic episodes and variability in insulin requirement, we initiated a trial of glibenclamide, with a presumptive diagnosis of NDM caused by a KATP channel mutation...
January 6, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29305547/evaluation-of-the-amplidiag-carbar-vre-kit-for-the-accurate-detection-of-carbapenemase-producing-bacteria
#7
Saoussen Oueslati, Delphine Girlich, Laurent Dortet, Thierry Naas
As carbapenemase-producing Gram-negative bacilli (CP-GNB) (Enterobacteriaceae, Pseudomonadaceae and Acinetobacter spp.) are becoming a major public health issue, there is an urgent need for accurate and fast diagnostic tests. Amplidiag® Carba-R+VRE assay is a multiplex nucleic acid-based in-vitro diagnostic test intended for the detection of CP-GNB and vancomycin resistant enterococci (VRE) from cultured colonies.We have evaluated its ability to detect carbapenemases genes in 100 well-characterized GNB, and in 200 consecutive enterobacterial isolates with reduced susceptibility to carbapenems and that were referred to the French National Reference Center for carbapenem-resistance...
January 5, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29296273/new-delhi-metallo-%C3%AE-lactamase-1-producing-klebsiella-pneumoniae-isolates-in-hospitalized-patients-in-kashan-iran
#8
Farzaneh Firoozeh, Zeinab Mahluji, Ehsaneh Shams, Ahmad Khorshidi, Mohammad Zibaei
Background and Objectives: New Delhi metallo-ß-lactamase (NDM) is a newly emerging metallo-ß-lactamases, which can destroy all β-lactams including carbapenems. Therefore, this study aimed at evaluating New Delhi metallo-ß-lactamase-1-production in clinical isolates of Klebsiella pneumoniae in Kashan, Iran. Materials and Methods: In a cross-sectional study, 181 K. pneumoniae isolates were collected from clinical samples of patients, who referred to Shahid Beheshi hospital in Kashan during November 2013 and October 2014...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296240/sulfonylurea-for-the-treatment-of-neonatal-diabetes-owing-to-katp-channel-mutations-a-systematic-review-and-meta-analysis
#9
Hongliang Zhang, Xiaobin Zhong, Zhenguang Huang, Chun Huang, Taotao Liu, Yue Qiu
The effect of sulfonylurea for the treatment of neonatal diabetes (NDM) is remain uncertain. We conducted this systematic review and meta-analysis to investigate the effect of sulfonylurea for NDM and to provide the latest and most convincing evidence for developing clinical practice guidelines of NDM. A literature review was performed to identify all published studies reporting the sulfonylurea on the treatment of neonatal diabetes. The search included the following databases: PUBMED, EMBASE and the Cochrane Library...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29286216/phosphorylated-akt-protein-at-ser473-enables-hela-cells-to-tolerate-nutrient-deprived-conditions
#10
Moustafa Fathy, Suresh Awale, Toshio Nikaido
Background: Despite angiogenesis, many tumours remain hypovascular and starved of nutrients while continuing to grow rapidly. The specific biochemical mechanisms associated with starvation resistance, austerity, may be new biological characters of cancer that are critical for cancer progression. Objective: This study aim was to investigate the effect of nutrient starvation on HeLa cells and the possible mechanism by which the cells are able to tolerate nutrient-deprived conditions. Methods: Nutrient starvation was achieved by culturing HeLa cells in nutrient-deprived medium (NDM) and cell survival was estimated by using cell counting kit-8...
December 29, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29284179/differences-in-pain-thresholds-elicited-by-intraoral-electrical-stimuli-between-individuals-with-and-without-diabetes-mellitus
#11
Takahiro Ogawa, Suguru Kimoto, Yoshio Nakashima, Nobuhiko Huruse, Masanori Ono, So Furokawa, Masakazu Okubo, Hidenori Yamaguchi, Yasuhiko Kawai
There is little evidence about sensation in individuals with diabetes mellitus (DM) in the dental research field. We investigated whether pain thresholds (PTs) differ between individuals with and without DM (non-DM; NDM). To this end, we assessed whether PTs obtained from the oral cavity, hands, and feet differed from each other and across groups, and whether PTs differed for the three current frequencies used for testing (2000 Hz, 250 Hz, and 5 Hz). PT measurements were obtained from the oral mucosa and the tips of the fingers and toes of 56 volunteers, including 21 individuals with DM (12 men and 9 women, average age: 72...
December 28, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29279590/distribution-of-adeb-and-ndm-1-genes-in-multidrug-resistant-acinetobacter-baumannii-isolated-from-infected-wound-of-patients-admitted-in-a-tertiary-care-hospital-in-bangladesh
#12
M J Hasan, S M Shamsuzzaman
BACKGROUND: The adeB gene in Acinetobacter baumannii regulates the bacterial internal drug efflux pump that plays a significant role in drug resistance. The aim of our study was to determine the occurrence of adeB gene in multidrug resistant and New Delhi metallo-beta-lactamase-1 (NDM- 1) gene in imipenem resistant Acinetobacter baumannii isolated from wound swab samples in a tertiary care hospital of Bangladesh. METHODS: A total of 345 wound swab samples were tested for bacterial pathogens...
December 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/29259044/deciphering-multifactorial-resistance-phenotypes-in-acinetobacter-baumannii-by-genomics-and-targeted-label-free-proteomics
#13
Tiphaine Cecchini, Eun-Jeong Yoon, Yannick Charretier, Chloé Bardet, Corinne Beaulieu, Xavier Lacoux, Jean-Denis Docquier, Jerome Lemoine, Patrice Courvalin, Catherine Grillot-Courvalin, Jean-Philippe Charrier
Resistance to β-lactams in Acinetobacter baumannii involves various mechanisms. To decipher them, whole genome sequencing (WGS) and real-time quantitative polymerase chain reaction (RT-qPCR) were complemented by mass spectrometry (MS) in selected reaction monitoring mode (SRM) in 39 clinical isolates. The targeted label-free proteomic approach enabled, in one hour and using a single method, the quantitative detection of 16 proteins associated with antibiotic resistance: eight acquired β-lactamases (i.e. GES, NDM-1, OXA-23, OXA-24, OXA-58, PER, TEM-1 and VEB), two resident β-lactamases (i...
December 19, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29248295/nota-analogue-a-first-dithiocarbamate-inhibitor-of-metallo-%C3%AE-lactamases
#14
En Zhang, Ming-Ming Wang, Shu-Chao Huang, Shuai-Min Xu, De-Yun Cui, Yuan-Li Bo, Peng-Yan Bai, Yong-Gang Hua, Chun-Ling Xiao, Shangshang Qin
The emergence of antibiotic drug (like carbapenem) resistance is being a global crisis. Among those resistance factors of the β-lactam antibiotics, the metallo-β-lactamases (MBLs) is one of the most important reasons. In this paper, a series of cyclic dithiocarbamate compounds were synthesized and their inhibition activities against MBLs were initially tested combined with meropenem (MEM) by in vitro antibacterial efficacy tests. Sodium 1,4,7-triazonane-1,4,7-tris(carboxylodithioate) (compound 5) was identified as the most active molecule to restore the activity of MEM...
November 7, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29245979/variations-in-plasma-concentrations-of-tamoxifen-metabolites-and-the-effects-of-genetic-polymorphisms-on-tamoxifen-metabolism-in-korean-patients-with-breast-cancer
#15
Hye In Woo, Se Kyung Lee, Jiyoung Kim, Seok Won Kim, Jonghan Yu, Soo Youn Bae, Jeong Eon Lee, Seok Jin Nam, Soo-Youn Lee
Inter-individual variation in tamoxifen metabolism in breast cancer patients is caused by various genetic and clinical factors. We measured the plasma concentrations of tamoxifen and its metabolites and investigated genetic polymorphisms influencing those concentrations. We measured the concentrations of tamoxifen, endoxifen, N-desmethyltamoxifen (NDM), and 4-hydroxytamoxifen (4-OH tamoxifen) in 550 plasma specimens from 281 breast cancer patients treated with tamoxifen. Duplicate or triplicate specimens were obtained from 179 patients at 3-month intervals...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29242224/draft-genome-sequence-of-the-first-ndm-4-producing-escherichia-coli-strain-ak1-isolated-from-sewage-water-of-a-north-indian-hospital
#16
Asad U Khan, Ayesha Z Beg, Praveen K Verma
We report here the draft genome sequence of the first isolated NDM-4-producing Escherichia coli strain, isolated from sewage water at a North Indian hospital. The genome has an assembly size of 5,076,053 bp, arranged in 129 contigs, with 5,271 genes and a G+C content of 50.47%.
December 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29237003/illumina-short-read-and-minion-long-read-wgs-to-characterize-the-molecular-epidemiology-of-an-ndm-1-serratia-marcescens-outbreak-in-romania
#17
H T T Phan, N Stoesser, I E Maciuca, F Toma, E Szekely, M Flonta, A T M Hubbard, L Pankhurst, T Do, T E A Peto, A S Walker, D W Crook, D Timofte
Background and Objectives: Serratia marcescens is an emerging nosocomial pathogen, and the carbapenemase blaNDM has been reported in several surveys in Romania. We aimed to investigate the molecular epidemiology of S. marcescens in two Romanian hospitals over 2010-15, including a neonatal NDM-1 S. marcescens outbreak. Methods: Isolates were sequenced using Illumina technology together with carbapenem-non-susceptible NDM-1-positive and NDM-1-negative Klebsiella pneumoniae and Enterobacter cloacae to provide genomic context...
December 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29229643/cystatin-9-and-c-a-novel-immunotherapy-that-protects-against-multi-drug-resistant-new-delhi-metallo-beta-lactamase-1-producing-klebsiella-pneumoniae
#18
Alex J Holloway, JiehJuen Yu, Bernard P Arulanandam, Sarah M Hoskinson, Tonyia Eaves-Pyles
Multidrug-resistant (MDR) bacterial pneumonia can induce dysregulated pulmonary and systemic inflammation leading to morbidity and mortality. Antibiotics to treat MDR pathogens do not function to modulate the extent and intensity of inflammation and can have serious side effects. Herein, we evaluate the efficacy of two human cysteine proteinase inhibitors, cystatin 9 and cystatin C, as a novel immunotherapeutic treatment to combat MDR New Delhi metallo-beta-lactamase-1 (NDM-1) producing Klebsiella pneumoniae (Kp)...
December 11, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29227931/synthesis-and-antibacterial-evaluation-of-novel-cationic-chalcone-derivatives-possessing-broad-spectrum-antibacterial-activity
#19
Wen-Chao Chu, Peng-Yan Bai, Zhao-Qing Yang, De-Yun Cui, Yong-Gang Hua, Yi Yang, Qian-Qian Yang, En Zhang, Shangshang Qin
There is an urgent need to identify new antibiotics with novel mechanisms that combat antibiotic resistant bacteria. Herein, a series of chalcone derivatives that mimic the essential properties of cationic antimicrobial peptides were designed and synthesized. Antibacterial activities against drug-sensitive bacteria, including Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Salmonella enterica, as well as clinical multiple drug resistant isolates of methicillin-resistant S. aureus (MRSA), KPC-2-producing and NDM-1-producing Carbapenem-resistant Enterobacteriaceae were evaluated...
December 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29226698/in-vitro-and-in-vivo-activity-of-manuka-honey-against-ndm-1-producing-klebsiella-pneumoniae-st11
#20
Muhammad Usman Qamar, Sidrah Saleem, Mark Alexander Toleman, Muhammad Saqalein, Muhammad Waseem, Muhammad Atif Nisar, Mohsin Khurshid, Zeeshan Taj, Shah Jahan
AIM: To determine the therapeutic potential of Manuka honey against New Delhi metallo-β-lactamase-1-producing Klebsiella pneumoniae ST11 in vitro and in vivo. MATERIALS & METHODS: Carbapenamases and metallo-β-lactamases-producing K. pneumoniae ST11 isolated from blood culture was confirmed by VITEK-2® system, matrix-assisted laser desorption ionization-time of flight and multilocus sequence typing, followed by determination of minimum inhibitory concentration (μg/ml) using VITEK-2 system...
December 11, 2017: Future Microbiology
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