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Antibiotic treatment

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https://www.readbyqxmd.com/read/29792808/eradication-of-established-tumors-by-chemically-self-assembled-nanoring-csan-targeted-t-cells
#1
Jacob Petersburg, Jingjing Shen, Clifford M Csizmar, Katherine A Murphy, Justin Spanier, Kari Gabrielse, Thomas S Griffith, Brian Fife, Carston R Wagner
Our laboratory has developed chemically self-assembled nanorings (CSANs) as prosthetic antigen receptors (PARs) for the non-genetic modification of T-cell surfaces. PARs have been successfully employed in vitro to activate T cells for the selective killing of leukemia cells. However, PAR efficacy has yet to be evaluated in vivo or against solid tumors. Therefore, we developed bispecific PARs that selectively target the human CD3 receptor and human Epithelial Cell Adhesion Molecule (EpCAM), which is overexpressed on multiple carcinomas and cancer stem cells...
May 24, 2018: ACS Nano
https://www.readbyqxmd.com/read/29792562/combined-effects-and-cross-interactions-of-different-antibiotics-and-polypeptides-in-salmonella-bredeney
#2
Xiangyu Ju, Mengjiao Zhu, Jinzhi Han, Zhaoxin Lu, Haizhen Zhao, Xiaomei Bie
Salmonella spp. are health-threatening foodborne pathogens. The increasingly common spread of antibiotic-resistant Salmonella spp. is a major public healthcare issue worldwide. In this study, we wished to explore (1) antibiotic or polypeptide combinations to inhibit multidrug-resistant Salmonella bredeney and (2) the regulation of cross-resistance and collateral sensitivity of antibiotics and polypeptides. We undertook a study to select antibiotic combinations. Then, we promoted drug-resistant strains of S...
May 24, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29792435/measuring-drug-induced-changes-in-metabolite-populations-of-live-bacteria-real-time-analysis-by-raman-spectroscopy
#3
Paul R Carey, Grant R Whitmer, Michael J Yoon, Michael N Lombardo, Marianne Pusztai-Carey, Hossein Heidari-Torkabadi, Tao Che
Raman difference spectroscopy is shown to provide a wealth of molecular detail on changes within bacterial cells caused by infusion of antibiotics or hydrogen peroxide. E. coli strains paired with chloramphenicol, DHFR propargyl-based inhibitors, meropenem, or hydrogen peroxide provide details of the depletion of protein and nucleic acid populations in real time. Additionally, other reproducible Raman features appear and are attributed to changes in cell metabolite populations. An initial candidate for one of the metabolites involves population increases of citrate, an intermediate within the TCA cycle...
May 24, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29792423/trace-organic-pollutant-removal-by-vuv-uv-chlorine-process-feasibility-investigation-for-drinking-water-treatment-on-a-mini-fluidic-vuv-uv-photoreaction-system-and-a-pilot-photoreactor
#4
Mengkai Li, Mengyu Hao, Laxiang Yang, Hong Yao, James R Bolton, Ernest R Blatchley, Zhimin Qiang
The vacuum-ultraviolet/ultraviolet/chlorine (VUV/UV/chlorine) process, with a VUV/UV mercury lamp used as the light source, was found to be a highly efficient advanced oxidation process (AOP) in a previous study. Hence, its application feasibility for trace organic pollutant removal from drinking water becomes attractive. In this work, a bench-scale mini-fluidic VUV/UV photoreaction system was used to determine the degradation kinetics of sulfamethazine (SMN), a model sulfonamide antibiotic frequently detected with trace levels in aquatic environments...
May 24, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29792307/putative-vaccine-candidates-and-drug-targets-identified-by-reverse-vaccinology-and-subtractive-genomics-approaches-to-control-haemophilus-ducreyi-the-causative-agent-of-chancroid
#5
Alissa de Sarom, Arun Kumar Jaiswal, Sandeep Tiwari, Letícia de Castro Oliveira, Debmalya Barh, Vasco Azevedo, Carlo Jose Oliveira, Siomar de Castro Soares
Chancroid is a sexually transmitted infection (STI) caused by the Gram-negative bacterium Haemophilus ducreyi The control of chancroid is difficult and the only current available treatment is antibiotic therapy; however, antibiotic resistance has been reported in endemic areas. Owing to recent outbreaks of STIs worldwide, it is important to keep searching for new treatment strategies and preventive measures. Here, we applied reverse vaccinology and subtractive genomic approaches for the in silico prediction of potential vaccine and drug targets against 28 strains of H...
May 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29792103/prolonged-use-of-antibiotics-after-birth-is-associated-with-increased-morbidity-in-preterm-infants-with-negative-cultures
#6
C Fajardo, B Alshaikh, A Harabor
BACKGROUND: Most preterm infants are exposed to a variable duration of antibiotic therapy after birth despite negative cultures. Data is emerging about the risks of prolonged antibiotics. We sought to assess the association between length of initial antibiotic course and neonatal outcomes in a cohort from a single large perinatal centre. METHODS: Retrospective cohort study of prospectively collected data on all infants with a birth weight of less than 1250 g hospitalized in our NICU in a 4-year window and who had negative blood and CSF cultures in the first 2 days of life...
May 23, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29791988/-liver-abscess-secondary-to-perforation-after-duodenal-endoscopic-resection
#7
Seung Ho Choi, Su Jin Kim, Dae Hwan Kang, Hyung Wook Kim, Cheol Woong Choi, Tae Un Kim, Jeong Seok Lee, Ji Hwan Ko
Duodenal perforation is a complication of endoscopic mucosal resection. Liver abscess secondary to iatrogenic perforation is extremely rare. A 43-year-old female visited the hospital to remove a sub-epithelial tumor on the duodenal bulb. After endoscopic mucosal resection with band ligation, duodenal perforation occurred. Endoscopic closure was performed successfully using a clipping device to manage duodenal perforation. After 4 weeks, the patient visited our outpatient clinic due to abdominal pain and fever...
May 25, 2018: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29791985/-management-of-acute-cholecystitis
#8
REVIEW
Seung Ok Lee, Sung Kyun Yim
Acute cholecystitis is a common serious complication of gallstones. The reported mortality of acute cholecystitis is approximately 3%, but the rate increases with age or comorbidity of the patient. If appropriate treatment is delayed, complications can develop as a consequence with a grave prognosis. The current standard of care in acute cholecystitis is an early laparoscopic cholecystectomy with the appropriate administration of fluid, electrolyte, and antibiotics. On the other hand, the severity of the disease and patient's operational risk must be considered...
May 25, 2018: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29791951/nervous-system-infections-and-the-global-traveler
#9
Savina Reid, Haley Thompson, Kiran T Thakur
Neurological complications of infectious diseases are associated with high rates of morbidity and mortality. It is imperative that neurologists be up-to-date on current developments including typical and atypical presentations of neurological infections in travelers, diagnostic and treatment recommendations, and emerging pathogen resistance patterns to avoid fatal outcomes and long-term sequelae. This article will address concepts of emerging and reemerging infectious diseases, and will provide updates on the neurological manifestations of select emerging and reemerging infections, including Ebola virus, bacterial meningitis, enterovirus 71, Zika virus, cerebral malaria, and Japanese encephalitis...
April 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29791883/relationship-between-modification-of-activated-sludge-wastewater-treatment-and-changes-in-antibiotic-resistance-of-bacteria
#10
Ewa Korzeniewska, Monika Harnisz
Biological treatment processes at wastewater treatment plants (WWTPs), which are the most common methods of sewage treatment, could cause selective elimination and/or changes in the proportions of phenotypes/genotypes within bacterial populations in effluent. Therefore, WWTPs based on activated sludge used in sewage treatment constitute an important reservoir of enteric bacteria which harbour potentially transferable resistance genes. Together with treated wastewater, these microorganisms can penetrate the soil, surface water, rural groundwater supplies and drinking water...
May 20, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29791442/bacillus-cereus-a-serious-cause-of-nosocomial-infections-epidemiologic-and-genetic-survey
#11
Benjamin Glasset, Sabine Herbin, Sophie A Granier, Laurent Cavalié, Emilie Lafeuille, Cyprien Guérin, Raymond Ruimy, Florence Casagrande-Magne, Marion Levast, Nathalie Chautemps, Jean-Winoc Decousser, Laure Belotti, Isabelle Pelloux, Jerôme Robert, Anne Brisabois, Nalini Ramarao
Bacillus cereus is the 2nd most frequent bacterial agent responsible for food-borne outbreaks in France and the 3rd in Europe. In addition, local and systemic infections have been reported, mainly describing individual cases or single hospital setting. The real incidence of such infection is unknown and information on genetic and phenotypic characteristics of the incriminated strains is generally scarce. We performed an extensive study of B. cereus strains isolated from patients and hospital environments from nine hospitals during a 5-year study, giving an overview of the consequences, sources and pathogenic patterns of B...
2018: PloS One
https://www.readbyqxmd.com/read/29790845/guidelines-for-the-treatment-of-dysentery-shigellosis-a-systematic-review-of-the-evidence
#12
Phoebe C M Williams, James A Berkley
BACKGROUND: Shigella remains the primary cause of diarrhoea in paediatric patients worldwide and accounts for up to 40,000 deaths per year. Current guidelines for the treatment of shigellosis are based on data which are over a decade old. In an era of increasing antimicrobial resistance, an updated review of the appropriate empirical therapy for shigellosis in children is necessary, taking into account susceptibility patterns, cost and the risk of adverse events. METHODS: A systematic review of the current published literature on the treatment of shigella dysentery was undertaken in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)...
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790844/antibiotic-use-for-community-acquired-pneumonia-in-neonates-and-children-who-evidence-review
#13
Shrey Mathur, Aline Fuchs, Julia Bielicki, Johannes Van Den Anker, Mike Sharland
Background Pneumonia is the most common cause of death in children worldwide, accounting for 15% of all deaths of children under 5 years of age. This review summarises the evidence for the empirical antibiotic treatment of community-acquired pneumonia in neonates and children and puts emphasis on publications since the release of the previous WHO Evidence Summary report published in 2014. Methods A systematic search for systematic reviews and meta-analyses of antibiotic therapy for community-acquired pneumonia was conducted between 1 January 2013 and 10 November 2016...
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790843/empirical-antibiotic-treatment-for-children-suffering-from-dysentery-cholera-pneumonia-sepsis-or-severe-acute-malnutrition
#14
Per Ashorn
No abstract text is available yet for this article.
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790842/reviewing-the-who-guidelines-for-antibiotic-use-for-sepsis-in-neonates-and-children
#15
Aline Fuchs, Julia Bielicki, Shrey Mathur, Mike Sharland, Johannes N Van Den Anker
Background Guidelines from 2005 for treating suspected sepsis in low- and middle-income countries (LMIC) recommended hospitalisation and prophylactic intramuscular (IM) or intravenous (IV) ampicillin and gentamicin. In 2015, recommendations when referral to hospital is not possible suggest the administration of IM gentamicin and oral amoxicillin. In an era of increasing antimicrobial resistance, an updated review of the appropriate empirical therapy for treating sepsis (taking into account susceptibility patterns, cost and risk of adverse events) in neonates and children is necessary...
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790840/guidelines-for-the-treatment-of-severe-acute-malnutrition-a-systematic-review-of-the-evidence-for-antimicrobial-therapy
#16
Phoebe C M Williams, James A Berkley
Background Severe acute malnutrition (SAM) affects nearly 20 million children worldwide and is responsible for up to 1 million deaths per year in children under the age of 5 years. Current WHO guidelines recommend oral amoxicillin for children with uncomplicated malnutrition and parenteral benzylpenicillin and gentamicin for those with complicated malnutrition. Because of cost pressures and increasing antimicrobial resistance, the administration of empirical antibiotics for children with SAM has recently been debated...
November 2018: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29790689/detection-of-brucella-abortus-by-immunofluorescence-assay-using-anti-outer-membrane-protein-of-19-kda-antibody
#17
Elham Mohammadi, Mehdi Golchin
BACKGROUND: Brucellosis in humans is one of the most prevalent zoonotic diseases around the world with more than 500,000 new cases per year. It is a weakening disease that requires long-term antibiotic treatment, often resulting in permanent and disabling consequences. Outer membrane proteins (OMPs) of Brucella, which are non-lipopolysaccharide (LPS) antigens, have been used for the diagnostic kits of brucellosis and vaccine design. OBJECTIVES: The aim of this study was to identify Brucella abortus with an immunofluorescence (IF) test using an antibody against recombinant outer membrane protein (OMP) of 19 kDa of this bacterium...
May 15, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790623/the-analysis-of-microbial-spectrum-and-antibiotic-resistance-of-uropathogens-isolated-from-patients-with-urinary-stones
#18
Dong Chen, Yuyan Zhang, Jian Huang, Xiongfa Liang, Tao Zeng, Chuangxin Lan, Xiaolu Duan, Zhijian Zhao, Guohua Zeng, Hans-Göran Tiselius, Xiaogang Lu, Wenqi Wu
PURPOSE: The characteristics and resistance patterns of urine bacteriology in patients with urinary tract stones have not been extensively studied. This study aims to investigate the microbial spectrum and antibiotic resistance of uropathogens isolated from urinary tract infections in patients with urinary stones and provide a basis for appropriate antimicrobial treatments. METHODS: The results of positive bladder midstream urine cultures and their antimicrobial susceptibility were retrospectively analysed from hospitalised patients with diagnosis of urinary calculi and urinary tract infections between January 2010 and December 2015...
May 23, 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29790262/the-efficacy-and-tolerability-of-5-aminolevulinic-acid-5-thermosetting-gel-photodynamic-therapy-pdt-in-the-treatment-of-mild-to-moderate-acne-vulgaris-a-two-center-prospective-assessor-blinded-proof-of-concept-study
#19
Stefano Maria Serini, Maria Vittoria Cannizzaro, Annunziata Dattola, Virginia Garofalo, Esther Del Duca, Alessandra Ventura, Massimo Milani, Elena Campione, Luca Bianchi
BACKGROUND: Acne vulgaris is a chronic inflammatory skin disease, commonly treated with topical or systemic drugs, according to the severity of the condition. Retinoids and antibiotic compounds are considered cornerstone approaches in this condition. However, low adherence to the therapy and the issue of bacterial resistance undermine the efficacy in the long term. Photodynamic therapy (PDT) with 20% aminolevulinic acid (ALA) has shown to be effective in the treatment of inflammatory acne...
May 22, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29790058/the-synergistic-effect-of-organic-acids-phytochemicals-and-a-permeabilizing-complex-reduces-salmonella-typhimurium-1-4-5-12-i-shedding-in-pigs
#20
Ruggeri Jessica, Foresti Fabio, Pavesi Roberta, Terrini Alessia, Giudici Francesca, Padoan Diego, Corradi Attilio, Ossiprandi Maria Cristina, Pasquali Paolo, Alborali Giovanni Loris
Salmonella Typhimurium (including S.Typhimurium 1,4,[5],12:i-) and other enteric pathogens cause acute infection in pigs during the weaning stage, often evolving into chronic infections responsible for the introduction of zoonotic bacteria into the slaughterhouse and thus determining carcass contamination. In addition to being zoonotic hazards, these pathogens are responsible for economic losses in affected farms. Traditionally, antibiotic treatments have been largely administered in order to reduce the infection burden but it favored, as a direct consequence, an increase in the number of multi-drug resistance strains...
May 22, 2018: Veterinary Research Communications
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