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Antimicrobial therapy

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https://www.readbyqxmd.com/read/28922285/what-where-and-why-exploring-fluorodeoxyglucose-pet-s-ability-to-localise-and-differentiate-infection-from-cancer
#1
Abby Douglas, Eddie Lau, Karin Thursky, Monica Slavin
PURPOSE OF REVIEW: To review the utility of FDG-PET imaging in detecting the cause of fever and infection in patients with cancer. RECENT FINDINGS: FDG-PET has been shown to have high sensitivity and accuracy for causes of neutropenic fever, leading to higher diagnostic certainty in this group. Recent advances in pathogen-specific labelling in PET to identify Aspergillus spp. and Yersinia spp. infections in mice, as well as differentiating between Gram-positive, Gram-negative and mycobacterial infections are promising...
September 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28919618/molecular-detection-and-differentiation-of-mycobacterium-tuberculosis-complex-and-non-tuberculous-mycobacterium-in-the-clinical-specimens-by-real-time-pcr
#2
M M Rahman, M R Rahim, A Khaled, T A Nasir, F Nasrin, M A Hasan
Mycobacteria are subdivided into three groups: the Mycobacterium tuberculosis complex, the non-tuberculous mycobacteria called NTM or MOTT (Mycobacteria Other Than Tuberculosis) and Mycobacterium leprae. Over the past few decades, the incidence of infections caused by NTM has increased world wide. The differentiation of Mycobacterium tuberculosis complex from NTM is of primary importance for infection control and choice of antimicrobial therapy. However, there is so far no report in Bangladesh about the detection of NTM and hence differentiation of MTB and NTM...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919603/current-trends-of-using-antimicrobials-at-obstetrics-and-gynaecology-department-in-a-tertiary-care-hospital
#3
M M Islam, S K Saha, S Saha, U A Wahid, R R Gomes, K S Ahmed, A N Naushad, S E Suchi, C Saha, D Mondal
This cross-sectional descriptive study was done to analyse the current trends of using antimicrobials in various surgical procedures at Obstetrics and Gynaecology department in Mymensingh Medical College Hospital, Mymensingh from July 2014 to June 2015. Among 300 postoperative obstetrics and gynaecological surgery cases, samples were selected as non-random purposive selection method where pattern of using antimicrobials were analysed by SPSS method 20.1 versions. The incidence of antimicrobial resistance is on continued rise with a threat to return to the pre-antibiotic era...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919195/combination-versus-monotherapy-for-gram-negative-bloodstream-infections-matching-by-predicted-prognosis
#4
Julie Ann Justo, P Brandon Bookstaver, Joseph Kohn, Helmut Albrecht, Majdi N Al-Hasan
The utility of empirical combination antimicrobial therapy for gram-negative bloodstream infections (BSI) remains unclear. This retrospective, quasi-experimental matched cohort study examined the impact of empirical combination therapy on mortality in patients with gram-negative BSI. Hospitalized adults with gram-negative BSI from 1 January 2010 to 31 December 2013 at Palmetto Health Hospitals in Columbia, SC, USA were identified. Patients receiving combination or beta-lactam monotherapy therapy were matched 1:1 based on age, sex and Bloodstream Infection Mortality Risk Score (BSIMRS)...
September 14, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28918001/in%C3%A2-vitro-evaluation-of-antimicrobial-agents-on-acanthamoeba-sp-and-evidence-of-a-natural-resilience-to-amphotericin-b
#5
Alexandre Taravaud, Philippe M Loiseau, Sébastien Pomel
The free-living amoeba (FLA) Acanthamoeba sp. is an opportunistic pathogen that can cause amoebic keratitis (AK) or granulomatous amoebic encephalitis (GAE). While current treatments of AK are long with some relapses, no consensus therapy has been developed for GAE remaining lethal in 90% of the cases. In this context, efficient antiacanthamoebal drugs have to be identified. In this work, 15 drugs used in the treatment of AK or GAE or in other parasitic diseases were evaluated for their in vitro activity on A...
September 8, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28917068/group-a-streptococcal-bacteraemia-experience-at-king-fahad-medical-city-in-riyadh-saudi-arabia
#6
Fawzyh J Al-Khadidi, Mohammed A AlSheheri, Tariq S AlFawaz, Mushira A Enani, Abdulaziz A AlAqeel, Dayel A AlShahrani
To identify clinical presentation, predisposing factors, and the outcome in patients with Group A Streptococcal bacteremia. Methods: This is a retrospective study of 33 pediatric and adult patients with Streptococcus pyogenes bacteremia, admitted at King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia from 2007 to 2015. Results: Thirty-three patient records, documenting bacteremia with group A beta-hemolytic streptococcus, were reviewed. Approximately 51.5% were pediatric and 48.5% were adult patients, with a male to female ratio of 2:1...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28916121/controversies-in-corticosteroid-use-for-sepsis
#7
Brit Long, Alex Koyfman
BACKGROUND: Severe sepsis and septic shock are potentially deadly conditions managed in the emergency department (ED). Management centers on source control, fluid resuscitation, broad-spectrum antimicrobials, and vasopressors as needed. The use of corticosteroids is controversial. OBJECTIVE: To evaluate the evidence behind corticosteroid therapy in patients with septic shock. DISCUSSION: Septic shock is associated with severe mortality and morbidity...
September 12, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28916120/does-early-and-appropriate-antibiotic-administration-improve-mortality-in-emergency-department-patients-with-severe-sepsis-or-septic-shock
#8
Robert Sherwin, Michael E Winters, Gary M Vilke, Gabriel Wardi
BACKGROUND: Severe sepsis and septic shock remain significant public health concerns. Appropriate emergency department management includes early recognition, hemodynamic resuscitation, source control, and prompt antibiotic administration. Current international guidelines strongly recommend administration of early and appropriate antibiotics for patients with severe sepsis and septic shock. Interestingly, a recent Cochrane Review found insufficient evidence to provide a similar recommendation on antibiotic administration...
September 12, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28915566/synergistic-antibiotic-effect-of-looped-antimicrobial-peptide-clp-19-with-bactericidal-and-bacteriostatic-agents
#9
Di Li, Ya Yang, Zhiqiang Tian, Jun Lv, Fengjun Sun, Qian Wang, Yao Liu, Peiyuan Xia
The treatment of drug-resistant infections is complicated and the alarming rise in infectious diseases poses a unique challenge for development of effective therapeutic strategies. Antibiotic-induced liberation of the bacterial endotoxin lipopolysaccharide (LPS) may have immediate adverse effects promoting septic shock in patients. In the present study, we first confirmed our previous finding that looped antimicrobial peptide CLP-19 exerts non-specific direct antibacterial activity with no toxic to mammalian cells and second revealed that CLP-19 has synergistic effect to enhance the antibacterial activities of other conventional bactericidal (ampicillin and ceftazidime) and bacteriostatic (erythromycin and levofloxacin) agents...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915359/presence-of-%C3%AE-lactamase-encoding-genes-in-burkholderia-cepacia-complex-isolated-from-soil
#10
João Pedro Rueda Furlan, Danilo Garcia Sanchez, Ana Lúcia Fachin, Eliana Guedes Stehling
Burkholderia cepacia complex has emerged as an important opportunistic bacteria group for immunocompromised patients, and it has a high level of intrinsic resistance for different antibiotic classes. Hydrolysis of β-lactam antibiotics by β-lactamases is the most common resistance mechanism in Gram-negative bacteria, and the presence of such enzymes complicates the selection of appropriate therapy. This study aimed at investigating the antimicrobial resistance profile and the presence of β-lactamase encoding genes in B...
September 15, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28915357/a-i-yigp-i-mutant-strain-is-a-small-colony-variant-of-i-e-coli-i-and-shows-pleiotropic-antibiotic-resistance
#11
Hui Xia, Qiongwei Tang, Jie Song, Jiang Ye, Haizhen Wu, Huizhan Zhang
Small colony variants (SCVs) are a commonly observed subpopulation of bacteria that have a small colony size and distinctive biochemical characteristics. SCVs are more resistant to some antibiotics than the wild-type, and usually cause persistent infections in the clinic. SCV studies have been very active during the past two decades, especially of <i>Staphylococcus aureus</i>. However, fewer studies on <i>Escherichia coli </i>SCVs exist, so we studied an <i>E. coli </i>SCV during an experiment involving the deletion of the<i> yigP</i> locus...
September 15, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28914846/-analysis-of-the-efficiency-of-antimicrobial-treatment-for-community-acquired-pneumonia-in-clinical-practice
#12
O V Zhukova, O V Ruina, S V Kononova, T M Konyshkina
AIM: To analyze actual drug consumption based on the defined daily dose (DDD analysis) and to analyze the utilization of drugs based on their proportion of the total defined daily doses (DU90% analysis) for the antimicrobial therapy of community-acquired pneumonia (CAP) in clinical practice at a hospital in Russia. MATERIAL AND METHODS: The investigation materials were the data of 117 case histories of male (51.3%) and female (48.7%) patients hospitalized with CAP at Nizhny Novgorod City Clinical Hospital Five in 2015...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28914678/update-topical-antimicrobial-agents-for-chronic-wounds
#13
R Gary Sibbald, James A Elliott, Luvneed Verma, Alisa Brandon, Reneeka Persaud, Elizabeth A Ayello
GENERAL PURPOSE: To provide information on the use of topical antimicrobial agents for the treatment of chronic wounds. TARGET AUDIENCE: This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care. LEARNING OBJECTIVES/OUTCOMES: After participating in this educational activity, the participant should be better able to:1. Examine features of wounds and wound healing as well as the purpose of specific antimicrobial agents...
October 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/28914640/machine-learning-novel-bioinformatics-approaches-for-combating-antimicrobial-resistance
#14
Nenad Macesic, Fernanda Polubriaginof, Nicholas P Tatonetti
PURPOSE OF REVIEW: Antimicrobial resistance (AMR) is a threat to global health and new approaches to combating AMR are needed. Use of machine learning in addressing AMR is in its infancy but has made promising steps. We reviewed the current literature on the use of machine learning for studying bacterial AMR. RECENT FINDINGS: The advent of large-scale data sets provided by next-generation sequencing and electronic health records make applying machine learning to the study and treatment of AMR possible...
September 12, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28914637/signal-transducer-and-activator-of-transcription-gain-of-function-primary-immunodeficiency-immunodysregulation-disorders
#15
Filippo Consonni, Laura Dotta, Francesca Todaro, Donatella Vairo, Raffaele Badolato
PURPOSE OF REVIEW: To describe primary immunodeficiencies caused by gain-of-function (GOF) mutations of signal transducer and activator of transcription (STAT) genes, a group of genetically determined disorders characterized by susceptibility to infections and, in many cases, autoimmune manifestations. RECENT FINDINGS: GOF mutations affecting STAT1 result in increased STAT tyrosine phosphorylation and secondarily increased response to STAT1-signaling cytokines, such as interferons...
September 13, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28914348/immunogenicity-and-antimicrobial-effectiveness-of-pseudomonas-aeruginosa-specific-bacteriophage-in-a-human-lung-in-vitro-model
#16
Joseph R Shiley, Kristen K Comfort, Jayne B Robinson
The rise of antibiotic resistant bacteria is posing a serious threat to human health. For example, resistant strains of Pseudomonas aeruginosa have resulted in untreatable and potentially lethal infections in both cystic fibrosis and immunocompromised patients. Due to the growing need for alternative treatment options, bacteriophage, or phage, therapy is gaining considerable attention. While previous studies have demonstrated the effectiveness of phage in combating persistent bacterial infections, there is currently a lack of knowledge regarding the host immunological response following phage exposure...
September 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28913872/high-primary-antibiotic-resistance-of-helicobacter-pylori-strains-isolated-from-dyspeptic-patients-a-prevalence-cross-sectional-study-in-spain
#17
Fernando Macías-García, José Llovo-Taboada, Mario Díaz-López, Iria Bastón-Rey, Juan Enrique Domínguez-Muñoz
BACKGROUND: The rate of H. pylori resistance to different antibiotics is increasing and determines the selection of eradication therapy. The aim of this study was to determine the resistance patterns of H. pylori strains in our area. METHODS: Biopsies from gastric corpus for microbiological culture and antibiotic resistance were obtained in patients undergoing upper gastrointestinal endoscopy for dyspepsia. Selective Agar Pylori for isolation of the bacteria and Agar Mueller-Hinton supplemented with blood to test the sensitivity to antibiotics were used...
September 15, 2017: Helicobacter
https://www.readbyqxmd.com/read/28913813/pharmacotherapy-pearls-for-emergency-neurological-life-support
#18
Gretchen M Brophy, Theresa Human
The appropriate use of medications during Emergency Neurological Life Support (ENLS) is essential to optimize patient care. Important considerations when choosing the appropriate agent include the patient's organ function and medication allergies, potential adverse drug effects, drug interactions and critical illness and aging pathophysiologic changes. Critical medications used during ENLS include hyperosmolar therapy, anticonvulsants, antithrombotics, anticoagulant reversal and hemostatic agents, anti-shivering agents, neuromuscular blockers, antihypertensive agents, sedatives, vasopressors and inotropes, and antimicrobials...
September 14, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28911836/implementation-of-an-algorithm-for-selection-of-antimicrobial-therapy-for-diarrhoeic-calves-impact-on-antimicrobial-treatment-rates-health-and-faecal-microbiota
#19
Diego E Gomez, Luis G Arroyo, Zvonimir Poljak, Laurent Viel, J Scott Weese
This study evaluated the impact of an algorithm targeting antimicrobial therapy of diarrhoeic calves on the incidence of diarrhoea, antimicrobial treatment rates, overall mortality, mortality of diarrhoeic calves and changes in the faecal microbiota. The algorithm was designed to target antimicrobial therapy in systemically ill calves from on two dairy farms. Retrospective (farm 1: 529 calves; farm 2: 639 calves) and prospective (farm 1: 639 calves; farm 2: 842 calves) cohorts were examined for 12 months before and after implementation of the algorithm...
August 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28910369/heightened-circulating-levels-of-antimicrobial-peptides-in-tuberculosis-diabetes-co-morbidity-and-reversal-upon-treatment
#20
Nathella Pavan Kumar, Kadar Moideen, Vijay Viswanathan, Shanmugam Sivakumar, Pradeep A Menon, Hardy Kornfeld, Subash Babu
BACKGROUND: The association of antimicrobial peptides (AMPs) with tuberculosis-diabetes comorbidity (PTB-DM) is not well understood. METHODS: To study the association of AMPs with PTB-DM, we examined the systemic levels of cathelicidin (LL37), human beta defensin- 2 (HBD2), human neutrophil peptides 1-3, (HNP1-3) and granulysin in individuals with either PTB-DM, PTB, latent TB (LTB) or no TB infection (NTB). RESULTS: Circulating levels of cathelicidin and HBD2 were significantly higher and granulysin levels were significantly lower in PTB-DM compared to PTB, LTB or NTB, while the levels of HNP1-3 were significantly higher in PTB-DM compared to LTB or NTB individuals...
2017: PloS One
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