Klebsiella pneumoniae ST258 Negatively Regulates the Oxidative Burst in Human Neutrophils

In conclusion, we unraveled a mechanism of immune evasion of Kpn KPC ST258, which may contribute to design more effective strategies for the treatment of these multi-resistant bacterial infections. Introduction Klebsiella pneumoniae (Kpn) is a Gram-negative pathogen causing a wide range of infections from urinary tract infections to pneumonia. Kpn is a member of the so-called ESKAPE group of microorganisms, a term that emphasizes the fact that they effectively “escape” the effects of antibacterial drugs (1). Antimicrobial resistance is a significant problem for the treatment of infectious diseases caused by resistant bacteria worldwide. Specifically, resistance to carbapenems, the antibiotics of last resort for life-threatening bacterial infections, has significantly increased mortality and morbidity in patients hospitalized in intensive care units or in long-term care facilities (2). As an example, mortality in patients suffering from bacteriemia or pulmonary infections caused by carbapenem-resistant Kpn strains ranges between ~30 and 70% (3). A clinically relevant Kpn clone has been genetically classified as multilocus sequence type 258 (ST258), which is a hyper-epidemic clone responsible for the global dispersion of carbapenem resistance. This resistance is conferred by an enzyme known as Kpn-Carbapenemase (KPC) (3), and the strains belonging to the ST258 are also resistant to all β-lactam antibiotics and generally contain additional resistance genes...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research

Related Links:

CONCLUSION: Prevalence of antibiotic use was high not only versus other hospitals in the region but globally including Africa, coupled with significant evidence of sub-optimal prescribing. Swift action is needed to improve future prescribing to reduce AMR. One or two areas should initially be targeted for quality improvement including development of local guidelines, documentation of antibiotic indications and/or stop/review dates. PMID: 33034234 [PubMed - as supplied by publisher]
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
Authors: Rombauts A, Abelenda-Alonso G, Cuervo G, Gudiol C, Carratalà J Abstract INTRODUCTION: Despite adequate antibiotic coverage, community-acquired pneumonia (CAP) remains a leading cause of hospitalization and mortality worldwide. It induces both a local pulmonary and a systemic inflammatory response, particularly significant in severe cases. The intensity of the dysregulated host response varies from patient to patient and has a negative impact on survival and other outcomes. AREAS COVERED: This comprehensive review summarizes the pathophysiological aspects of the inflammatory response in CAP, brie...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
Authors: Reissier S, Cattoir V Abstract INTRODUCTION: Streptogramins (pristinamycin and quinupristin-dalfopristin) can be interesting options for the treatment of infections due to Gram-positive cocci, especially multidrug-resistant isolates. AREAS COVERED: This review provides an updated overview on structural and activity characteristics, mechanisms of action and resistance, pharmacokinetic/pharmacodynamic and clinical use of streptogramins. EXPERT OPINION: The streptogramin antibiotics act by inhibition of the bacterial protein synthesis. They are composed of two chemically distinct compounds, namely typ...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
Publication date: Available online 30 September 2020Source: Journal of Hazardous MaterialsAuthor(s): Anthony Beauvois, Delphine Vantelon, Jacques Jestin, Martine Bouhnik-Le Coz, Charlotte Catrouillet, Valérie Briois, Thomas Bizien, Mélanie Davranche
Source: Journal of Hazardous Materials - Category: Environmental Health Source Type: research
Authors: Zhang W, Xu JZ, Lu XH, Li H, Wang D, Wang JG Abstract PURPOSE: We hypothesise that dietary sodium intake interacts with serum uric acid to influence blood pressure (BP) in children and adolescents. In the present study, we investigated ambulatory BP in relation to hyperuricaemia, dietary sodium intake and their interaction in children and adolescents with hypertension. MATERIALS AND METHODS:  A total of 616 study participants were 10-24 years old and had primary hypertension diagnosed after admission in a specialised inpatient ward. Ambulatory BP monitoring was performed during hospitalisat...
Source: Blood Pressure - Category: Hematology Tags: Blood Press Source Type: research
Publication date: Available online 10 October 2020Source: Meta GeneAuthor(s): Mansour Zamanpoor, Hamid Ghaedi, Mir Davood Omrani
Source: Meta Gene - Category: Genetics & Stem Cells Source Type: research
CONCLUSIONS: Xyloglucan/gelose plus ORS was effective and safe in treating acute diarrhea in children. PMID: 33028102 [PubMed - as supplied by publisher]
Source: Expert Review of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Expert Rev Gastroenterol Hepatol Source Type: research
CONCLUSIONS: Immunohistochemistry seems to be a promising option not only in clinical recognition, but also in the selection and monitoring of treatment effects. However, these methods have not yet recommended for routine clinical use. PMID: 33032462 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
CONCLUSION: In this study, no influence of tear substitutes containing different viscosities of hyaluronic acid on the measurement results of optical coherence tomography could be determined. Therefore, 0.1%, 0.2% and 0.3% hyaluronic acid can be applied to the patient to improve the corneal surface before the examination with optical coherence tomography, without influencing the measurement results of optical coherence tomography. PMID: 33036058 [PubMed - as supplied by publisher]
Source: Klinische Monatsblatter fur Augenheilkunde - Category: Opthalmology Tags: Klin Monbl Augenheilkd Source Type: research
CONCLUSION: The proposed PHARMAC criteria will give access to these important drugs to those people with T2DM who will likely benefit the most. PMID: 33032305 [PubMed - in process]
Source: New Zealand Medical Journal - Category: General Medicine Tags: N Z Med J Source Type: research
More News: Academia | Academies | Allergy | Allergy & Immunology | Antimicrobial Resistance | Argentina Health | Arthritis | Asthma | Biology | Brain | Calcium | Carbohydrates | Environmental Health | Epidemics | Epidemiology | Fiji Health | Gastroenteritis | Genetics | Germany Health | Infectious Diseases | Intensive Care | Japan Health | Medical Ethics | Merck | Molecular Biology | Multidrug Resistance | Neurology | Neuroscience | PET Scan | Pneumonia | Polymyxin B | Respiratory Medicine | Rheumatology | Sodium | Sodium Chloride | Statistics | Study | Sugar | Superbugs | Translocation | Urinary Tract Infections