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types of antibiotics

Samiran Bandyopadhyay, Jaydeep Banerjee, Debaraj Bhattacharyya, Indranil Samanta, Achintya Mahanti, Tapan K Dutta, Sarbaswarup Ghosh, Pramod K Nanda, Premanshu Dandapat, Subhasish Bandyopadhyay
We investigated the occurrence of extended-spectrum β-lactamase (ESBL) and AmpC-type β-lactamase (ACBL) producing quinolone-resistant Klebsiella pneumoniae (KP) in milk samples of apparently healthy buffaloes (n = 348) and buffaloes (n = 19) with evidence of subclinical mastitis from seven districts of West Bengal, India. In total, 12 ESBL producing KP were isolated with blaCTX-M-15 gene and 7 of them were ACBL producers, as well. The blaCTX-M-15 genes were carried by transposable element ISEcp1. The plasmid-mediated quinolone resistance genes-qnrS, qnrA, qnrB, qepA, and aac(6')-Ib-cr were detected in five, one, three, four, and one isolate (s), respectively...
March 22, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
Cheng Chen, Mukil Natarajan, David Bianchi, Georg Aue, John H Powers
We present a case of acute epiglottitis in a 16-year-old with severe aplastic anemia. He was admitted with a history suggestive of a severe upper airway infection and an absolute neutrophil count of 0 per cubic millimeter. Despite his immunocompromised state, he presented with the classical signs and symptoms of epiglottitis. We review here the presentation and comorbidities of immunocompromised patients with epiglottitis. In addition, the appropriate choice of empirical antibiotic therapy is important for the management of epiglottitis in immunocompromised patients, especially in the post- Haemophilus influenza type B vaccination era...
March 2018: Open Forum Infectious Diseases
Patrizia Serratore, Emanuele Zavatta, Eleonora Fiocchi, Emanuele Serafini, Andrea Serraino, Federica Giacometti, Giorgia Bignami
V. vulnificus is a Gram-negative bacterium, commonly found in estuarine and coastal habitats, that can infect humans through seafood consumption or wound exposure. This study represents the first attempt to correlate the genotype of Vibrio vulnificus strains isolated in the north-western Adriatic Sea coastal area, with their antimicrobial susceptibility patterns. On the whole, 40 V. vulnificus strains, isolated from shellfish (n=20), different coastal water bodies (n=19), and the blood of a Carretta carretta turtle (n=1), were utilized...
October 20, 2017: Italian Journal of Food Safety
Reza Ranjbar, Hedieh Rahmati, Leili Shokoohizadeh
Aim: The aims of this study were to investigate antibiotic resistance pattern and molecular characterization of Salmonella Infantis strains, isolated from human sources in Tehran hospitals from 2008 to 2010. Background: Infection caused by Salmonella is one of the major public health problems. Despite the clinical importance of Salmonella enteric subsp. enteric serovar Infantis in humans, there is no information available about the common clones of Salmonella Infantis in clinical isolates in Iran...
2018: Gastroenterology and Hepatology From Bed to Bench
Marthie M Ehlers, Wilhelmina Strasheim, Michelle Lowe, Veronica Ueckermann, Marleen M Kock
Staphylococcus epidermidis is one of the most prevalent pathogens implicated in catheter-related bloodstream infections (CRBSI) at an academic hospital in Pretoria, South Africa. Little is known about the clonality and the prevalence of antibiotic resistance and virulence genes in S. epidermidis (e.g., ica AB, IS 256, mec A, and qac A/B). A total of 508 intravascular catheters (IVCs) from 331 patients were submitted for culture from May to October 2013. Only 50% ( n = 253/508) of the IVCs were accompanied by blood cultures (BCs) taken within 48 h...
2018: Frontiers in Microbiology
Nayeem Ahmad, Shamsi Khalid, Syed M Ali, Asad U Khan
Carbapenem-resistance among enterobacteriaceae has become a global health concern. The objective of this study was to understand NDM producing enterobacteriaceae and their genetic basis of resistance, spreading in neonatal intensive care unit. Carbapenem resistant NDM producing enterobacteriaceae isolates were recovered from rectal swab and blood sample of infants admitted in NICU. These were determined by using Carba-NP test. All isolates were identified using BD PhoenixTM-100 and MICs were determined by broth microdilution method...
2018: Frontiers in Microbiology
Wasl Al-Adsani, Ali Ahmad, Mohammad Al-Mousa
Background: Brucellosis is a bacterial infection, caused by the nonmotile gram-negative aerobic coccobacilli. The clinical manifestation of brucellosis is variable, ranging from mild disease to severe disease. The gold standard test to confirm the diagnosis of brucellosis is assaying blood, bone marrow, or other body fluids or by tissue culture. Preferred first-line treatment in adults with uncomplicated, nonlocalized disease consists of doxycycline-aminoglycoside combination. The recommended duration of treatment is 6 weeks...
2018: Infection and Drug Resistance
Ruobing Wang, Lucy van Dorp, Liam P Shaw, Phelim Bradley, Qi Wang, Xiaojuan Wang, Longyang Jin, Qing Zhang, Yuqing Liu, Adrien Rieux, Thamarai Dorai-Schneiders, Lucy Anne Weinert, Zamin Iqbal, Xavier Didelot, Hui Wang, Francois Balloux
Colistin represents one of the few available drugs for treating infections caused by carbapenem-resistant Enterobacteriaceae. As such, the recent plasmid-mediated spread of the colistin resistance gene mcr-1 poses a significant public health threat, requiring global monitoring and surveillance. Here, we characterize the global distribution of mcr-1 using a data set of 457 mcr-1-positive sequenced isolates. We find mcr-1 in various plasmid types but identify an immediate background common to all mcr-1 sequences...
March 21, 2018: Nature Communications
L T Daum, O S Konstantynovska, O S Solodiankin, O O Liashenko, P I Poteiko, V I Bolotin, I I Hrek, A V Rohozhyn, J D Rodriguez, G W Fischer, J P Chambers, A P Gerilovych
The Ukraine ranks among the top twenty countries with the highest number of multi-drug resistant (MDR), and extensively drug resistant (XDR) Mycobacterium tuberculosis (MTB) cases in the world. However, little is known of the genetic diversity, i.e., resistance signatures in clinical isolates from this region. We analyzed seven of most prevalent MDR/XDR antibiotic resistance conferring genes from clinical isolates ( N = 75 ) collected from geographically diverse Ukrainian oblasts and its southern Crimean peninsula...
March 21, 2018: Journal of Clinical Microbiology
M-J Butel, A-J Waligora-Dupriet, S Wydau-Dematteis
The developmental origin of health and disease highlights the importance of the period of the first 1000 days (from the conception to the 2 years of life). The process of the gut microbiota establishment is included in this time window. Various perinatal determinants, such as cesarean section delivery, type of feeding, antibiotics treatment, gestational age or environment, can affect the pattern of bacterial colonization and result in dysbiosis. The alteration of the early bacterial gut pattern can persist over several months and may have long-lasting functional effects with an impact on disease risk later in life...
March 22, 2018: Journal of Developmental Origins of Health and Disease
Jiaoe Chen, Liping Ye, Liangmin Jin, Xuehua Xu, Peisong Xu, Xianjun Wang, Hongzhang Li
BACKGROUND: Clarithromycin (CLR) resistance has become a predominant factor for treatment failure of Helicobacter pylori eradication. Although the molecular mechanism of CLR resistance has been clearly understood in H. pylori, it is lack of evidence of other genes involved in drug resistance. Furthermore, the molecular mechanism of phenotype susceptible to CLR while genotype of 23S rRNA is mutant with A2143G is unclear. Here, we characterized the mutations of CLR-resistant and -susceptible H...
March 22, 2018: Annals of Clinical Microbiology and Antimicrobials
Mohamed Ezzat Khalifa
Aminothiazole nuclei and their various derivatives have been long used as precursors for the synthesis of biologically active molecules. As a typical heterocyclic amine, 2-aminothiazole is a cornerstone for the synthesis of many compounds, including sulfur drugs, biocides, fungicides, various types of dyes for synthetic fibers and chemical reaction accelerators and as intermediates in the synthesis of antibiotics, where a large number of 2-aminothiazoles have been substituted with different groups for various pharmaceutical purposes, besides their activity as corrosion inhibitors for mild steel protection as well...
March 2018: Acta Chimica Slovenica
Priya Kapoor, Philip Murphy
Objectives: To evaluate the effect of antibiotic combination therapy versus single therapy against cystic fibrosis strains of Pseudomonas aeruginosa identified as common and rare among patient groups in different Irish hospitals. Methods: This study compares the susceptibility profiles of P. aeruginosa isolates from different cystic fibrosis (CF) clinics in Ireland, collected from 2004-2005. Strains were recovered in small numbers and typed by pulsed-field gel electrophoresis...
March 2018: Heliyon
Saber Jan, Braveen Ragunanthan, Sandra R DiBrito, Omolabake Alabi, Maria Gutierrez
Background: Cefepime is a fourth-generation cephalosporin antibiotic used to treat a variety of infections. The US Food and Drug Administration approved its use in certain types of infections among pediatric patients, and yet there have been mixed data about its efficacy and safety in this population. Objective: The objective of this review is to compare efficacy and all-cause mortality of cefepime to other clinically indicated antibiotics among children. Methods: We conducted a systematic search of MEDLINE, EMBASE, CENTRAL, LILACS, and clinicaltrials...
2018: Frontiers in Pediatrics
Xingyu Zhang, Di Chen, Guifeng Xu, Weichun Huang, Xing Wang
Infection by carbapenem-resistant Klebsiella pneumoniae (CR-KP) is a public health challenge worldwide, in particular among children, which was associated with high morbidity and mortality rates. There was limited data in pediatric populations, thus this study aimed to investigate molecular epidemiology and drug resistant mechanism of CR-KP strains from pediatric patients in Shanghai, China. A total of 41 clinical CR-KP isolates from sputum, urine, blood or drainage fluid were collected between July 2014 and May 2015 in Shanghai Children's Medical Center...
2018: PloS One
Feng Yang, Yonggen Jiang, Lihua Yang, Juanxiu Qin, Mingquan Guo, Yuxia Lu, Hongyou Chen, Yuan Zhuang, Jinghao Zhang, Hong Zhang, Zhaoyun Dai, Min Li, Changqing Yang, Min Chen, Yanmei Zhang, Hu Zhao
Objective: To investigate prevalence of acute diarrhea in Shanghai and analyze virulence associated-genes and antibiotic resistance of major enteropathogens using combination of conventional and molecular epidemiology methods. Method: The 412 stool specimens were obtained by systematic sampling from diarrhea patients throughout entire year 2016. Bacterial and viral pathogens were identified and bacterial isolates were cultured and screened for antibiotic resistance profiles. Two most prevalent bacteria, Vibrio parahaemolyticus and Salmonella were further typed by multi-locus sequence typing (MLST) and analyzed for presence of virulence-associated genes...
2018: Frontiers in Microbiology
Maria Pardos de la Gandara, Vitor Borges, Marilyn Chung, Catarina Milheiriço, João Paulo Gomes, Herminia de Lencastre, Alexander Tomasz
Methicillin-resistant Staphylococcus aureus (MRSA) strains carry either a mecA - or a mecC -mediated mechanism of resistance to beta-lactam antibiotics and the phenotypic expression of resistance shows extensive strain-to-strain variation. In recent communications we identified genetic determinants associated with the stringent stress response that play a major role in the antibiotic resistant phenotype of the historically earliest "archaic" clone of MRSA and in the mecC carrying MRSA strain LGA251...
March 19, 2018: Antimicrobial Agents and Chemotherapy
Cheisson Gaëlle, Jacqueminet Sophie, Cosson Emmanuel, Ichai Carole, Leguerrier Anne-Marie, Nicolescu-Catargi Bogdan, Ouattara Alexandre, Tauveron Igor, Valensi Paul, Benhamou Dan
Perioperative hyperglycaemia (>1.80g/L or 10 mmol/L) increases morbidity (particularly due to infection) and mortality. Hypoglycaemia can be managed in the perioperative period by decreasing blood sugar levels with insulin between 0.90 and 1.80g/l but it may occur more frequently when the goal is strict normoglycaemia. We propose continuous administration of insulin therapy via an electronic syringe (IVES) in type-1 diabetes (T1D) and type-2 diabetes (T2D) patients if required or in cases of stress hyperglycaemia...
March 16, 2018: Anaesthesia, Critical Care & Pain Medicine
Bahare Salehi, Hossein Goudarzi, Bahram Nikmanesh, Hamidreza Houri, Mostafa Alavi-Moghaddam, Zohreh Ghalavand
RATIONALE: Acinetobacter baumannii is one of the antibiotic-resistant superbugs that threatens hospitalized patients. Emergence and spread of the multidrug-resistant (MDR) and extensively drug-resistant (XDR) clones cause erratic outbreaks following environmental contamination of hospital settings. OBJECTIVE: The present study intended to characterize the antimicrobial resistant profiles and the genotypes of clinical and environmental isolates of A. baumannii as a result of dissemination of resistant strains...
March 16, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
A Castronovo, F Gervais, C Mongaret, F Slimano
OBJECTIVES: While many international studies widely describe pharmacists' interventions (PIs) on drug-related problems (DRP) in community pharmacies, in France, these activities are underreported. The aim of this study is to describe the PI rate, given as the number of interventions in among all prescriptions reviewed during the study period. MATERIAL AND METHODS: This study was conducted in one French rural community pharmacy during a 7-month period. Age, sex, type of prescriber, type of problems, intervention and the outcome were prospectively recorded...
March 16, 2018: Annales Pharmaceutiques Françaises
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