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klebsiella pneumonia

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https://www.readbyqxmd.com/read/29775786/is-mic-increase-of-meropenem-against-klebsiella-pneumoniae-carbapenemase-kpc-producing-klebsiella-pneumoniae-correlated-with-the-increase-of-resistance-rates-against-some-other-antibiotics-with-gram-negative-activity
#1
Piergiorgio Cojutti, Assunta Sartor, Matteo Bassetti, Claudio Scarparo, Federico Pea
OBJECTIVE: To assess MIC distribution for meropenem and the other antibiotics with Gram-negative activity against KPC-Kp clinical isolates collected at our hospital in 2013-2016. METHODS: Susceptibility of KPC-Kp strains was tested by broth microdilution method, using customized 96-well plates, and was interpreted according to the EUCAST recommendations. RESULTS: Among 169 consecutive KPC-Kp clinical isolates 26.6% were susceptible to meropenem...
May 15, 2018: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29774893/prevalence-and-antimicrobial-sensitivity-pattern-of-urinary-tract-infection-among-children-with-cerebral-palsy-moshi-tanzania
#2
Amon Ryakitimbo, Rune Philemon, Festo Mazuguni, Levina Msuya
Background: Urinary tract infection (UTI) in children with cerebral palsy (CP) is a challenging yet common clinical condition. Children with CP bare the greatest risk of contracting UTI because of their difficulties in neuromotor control which lead to delay of bladder control, causing incomplete bladder emptying and urine retention. Method: This was an analytical cross-sectional study that was conducted from September 2016 to March 2017 at Comprehensive Community Based Rehabilitation in Tanzania - Moshi and Kilimanjaro Christian Medical Centre Neurological Pediatrics Outpatient Clinic...
2018: Pediatric Health, Medicine and Therapeutics
https://www.readbyqxmd.com/read/29774878/-etiology-and-risk-factors-for-meningitis-and-or-bacteremia-after-craniotomy-for-patients-with-glioma
#3
Yaning Wang, Yu Wang, Wenbin Ma
To evaluate the incidence and microbiological profile of meningitis and/or bacteremia after craniotomy in patients with glioma and analyze the risk factors relevant to postoperative meningitis.
 Methods: All demographic data, etiological data and clinical data for hospitalized patients who underwent craniotomy in Dept. of Neurosurgery of Peking Union Medical College Hospital between Jan. 2013 to Dec. 2017 were recorded.
 Results: The incidence of post-craniotomy meningitiswas 7.73%, bacteremia was 2.21% and meningitis combined with bacteremia was 1...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774858/genomic-epidemiology-of-global-carbapenemase-producing-enterobacter-spp-2008-2014
#4
Gisele Peirano, Yasufumi Matsumura, Mark D Adams, Patricia Bradford, Mary Motyl, Liang Chen, Barry N Kreiswirth, Johann D D Pitout
We performed whole-genome sequencing on 170 clinical carbapenemase-producing Enterobacter spp. isolates collected globally during 2008-2014. The most common carbapenemase was VIM, followed by New Delhi metallo-β-lactamase (NDM), Klebsiella pneumoniae carbapenemase, oxacillin 48, and IMP. The isolates were of predominantly 2 species (E. xiangfangensis and E. hormaechei subsp. steigerwaltii) and 4 global clones (sequence type [ST] 114, ST93, ST90, and ST78) with different clades within ST114 and ST90. Particular genetic structures surrounding carbapenemase genes were circulating locally in various institutions within the same or between different STs in Greece, Guatemala, Italy, Spain, Serbia, and Vietnam...
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29774213/a-rapid-growth-independent-antibiotic-resistance-detection-test-by-sybr-green-propidium-iodide-viability-assay
#5
Jie Feng, Rebecca Yee, Shuo Zhang, Lili Tian, Wanliang Shi, Wen-Hong Zhang, Ying Zhang
Antibiotic-resistant bacteria have caused huge concerns and demand innovative approaches for their prompt detection. Current antimicrobial susceptibility tests (AST) rely on the growth of the organisms which takes 1-2 days for fast-growing organisms and several weeks for slow growing organisms. Here, we show for the first time the utility of the SYBR Green I/propidium iodide (PI) viability assay for rapidly identifying antibiotic resistance in less than 30 min for major, antibiotic-resistant, fast-growing bacteria, such as Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae , and Acinetobacter baumannii for bactericidal and bacteriostatic agents and in 16 h for extremely rapid detection of drug resistance for isoniazid and pyrazinamide in slow-growing Mycobacterium tuberculosis ...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29772647/the-antimicrobial-activity-of-annona-emarginata-schltdl-h-rainer-and-most-active-isolated-compounds-against-clinically-important-bacteria
#6
Juan G Dolab, Beatriz Lima, Ewelina Spaczynska, Jiri Kos, Natividad H Cano, Gabriela Feresin, Alejandro Tapia, Francisco Garibotto, Elisa Petenatti, Monica Olivella, Robert Musiol, Josef Jampilek, Ricardo D Enriz
Annona emarginata (Schltdl.) H. Rainer, commonly known as "arachichú", "araticú", "aratigú", and "yerba mora", is a plant that grows in Argentina. Infusions and decoctions are used in folk medicine as a gargle against throat pain and for calming toothache; another way to use the plant for these purposes is chewing its leaves. Extracts from bark, flowers, leaves, and fruits from A. emarginata were subjected to antibacterial assays against a panel of Gram (+) and Gram (-) pathogenic bacteria according to Clinical and Laboratory Standards Institute protocols...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29769274/a-comparative-evaluation-of-four-phenotypic-methods-for-detection-of-class-a-and-b-carbapenemase-producing-enterobacteriaceae-in-china
#7
Menglan Zhou, Danchen Wang, Timothy Kudinha, Qiwen Yang, Shuying Yu, Ying-Chun Xu
Objectives: To evaluate the performance of four phenotypic methods in the detection of carbapenemase-producing Enterobacteriaceae (CPE) in China. Methods: We evaluated the performance of four carbapenemase detection methods, the modified Hodge test (MHT), Carba NP test, meropenem hydrolysis assay (MHA) with 1 and 2-hour incubation, and modified carbapenem inactivation method (mCIM) with meropenem, imipenem, and ertapenem, on 342 carbapenem-resistant Enterobacteriaceae (CRE) in China. Polymerase chain reaction was used as the gold standard...
May 16, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29768382/transbronchial-drainage-using-endobronchial-ultrasonography-with-guide-sheath-for-lung-abscess-a-case-report
#8
Daizo Yaguchi, Motoshi Ichikawa, Noriko Inoue, Daisuke Kobayashi, Masato Shizu, Naoyuki Imai
RATIONALE: Lung abscess was previously treated surgically, but is now mainly treated with antibiotics and ideally with direct drainage, although postural drainage canalso be used. PATIENT CONCERNS: A chest abnormal shadow was detected in an 82-year-old man and he was referred to our department in November 2017. On chest computed tomography (CT), a low-density mass shadow was present in the left S8 segment. Lung abscess and lung cancer were considered as differential diagnoses, and treatment with sulbactam sodium/ampicillin sodium (SBT/ABPC) was first initiated for lung abscess...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29768225/optimisation-of-preparation-conditions-for-ti-nanowires-and-suitability-as-an-antibacterial-material
#9
Thivyah Munisparan, Evyan Chia Yan Yang, Ragul Paramasivam, Nuraina Anisa Dahlan, Janarthanan Pushpamalar
Ultrafine titanium dioxide (TiO2 ) nanowires were synthesised using a hydrothermal method with different volumes of ethylene glycol (EG) and annealing temperatures. It shows that sodium titanate nanowires synthesised using 5 and 10 ml EG, which annealed at 400°C produced TiO2 nanowires that correspond to a photochemically active phase, which is anatase. The influences of annealing temperatures (400-600°C) on the morphological arrangement of TiO2 nanowires were evident in the field emission scanning electron microscopy...
June 2018: IET Nanobiotechnology
https://www.readbyqxmd.com/read/29768099/the-mcr-1-gene-has-no-effect-on-colistin-resistance-when-it-coexists-with-inactivated-mgrb-gene-in-klebsiella-pneumoniae
#10
Huichuan Zhang, Dongdong Zhao, Qiucheng Shi, Jingjing Quan, Xi Li, Yunsong Yu
The inactivated mgrB gene and the mcr-1 gene are important mechanisms of colistin resistance in Klebsiella pneumoniae and they are threats to the clinical use of colistin. In this study, mcr-1 gene was cloned into K. pneumoniae strains (XH209 and KP10) and their derived strains (XH209 M and KP10 M), which showed high-level resistance to colistin. The acquisition of the mcr-1 gene led to colistin resistance in XH209 and KP10, but the addition of mcr-1 gene did not cause change of colistin minimum inhibitory concentrations in the XH209 M and KP10 M...
May 16, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29767453/optimizing-antimicrobial-peptide-dendrimers-in-chemical-space
#11
Thissa Siriwardena, Alice Capecchi, Bee-Ha Gan, Xian Jin, Runze He, Dengwen Wei, Lan Ma, Thilo Köhler, Christian van Delden, Sacha Javor, Jean-Louis Reymond
Here we used nearest neighbor searches in chemical space to improve the activity of antimicrobial peptide dendrimer (AMPD) G3KL and identified dendrimer T7 with an expanded activity range against Gram-negative pathogenic bacteria including Klebsiellae pneumoniae, increased serum stability and promising activity in an in vivo infection model against a multidrug resistant strain of Acinetobacter baumannii. Imaging, spectroscopic studies and a structural model from molecular dynamics simulations suggest that T7 acts by membrane disruption...
May 16, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29765868/retrobulbar-steatitis-and-meningitis-empyema-secondary-to-right-otitis-media-right-otitis-interna-and-an-inflammatory-polyp-in-a-cat
#12
Elena Fenollosa-Romero, Olivier Taeymans, Pieter Nelissen, Giunio B Cherubini, Claudia Busse
The purpose was to describe a case of retrobulbar steatitis and meningitis in a cat caused by otitis media, otitis interna and an inflammatory polyp in the middle ear. Investigations included ophthalmic and neurological examinations, haematology and biochemistry, magnetic resonance imaging (MRI), cerebrospinal fluid (CSF) analysis and aerobic, anaerobic bacterial and fungal culture of material from the middle ear. A 6-year-old female neutered domestic-short-haired cat presented with right-sided exophthalmos and resistance to retropulsion...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29765367/detection-of-bacteriophage-particles-containing-antibiotic-resistance-genes-in-the-sputum-of-cystic-fibrosis-patients
#13
Maryury Brown-Jaque, Lirain Rodriguez Oyarzun, Thais Cornejo-Sánchez, Maria T Martín-Gómez, Silvia Gartner, Javier de Gracia, Sandra Rovira, Antonio Alvarez, Joan Jofre, Juan J González-López, Maite Muniesa
Cystic fibrosis (CF) is a chronic disease in which the bacterial colonization of the lung is linked to an excessive inflammatory response that leads to respiratory failure. The microbiology of CF is complex. Staphylococcus aureus is the first bacterium to colonize the lungs in 30% of pediatric CF patients, and 80% of adult patients develop a chronic Pseudomonas aeruginosa infection, but other microorganisms can also be found. The use of antibiotics is essential to treat the disease, but antibiotic performance is compromised by resistance mechanisms...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29765362/tachyplesin-causes-membrane-instability-that-kills-multidrug-resistant-bacteria-by-inhibiting-the-3-ketoacyl-carrier-protein-reductase-fabg
#14
Cunbao Liu, Jialong Qi, Bin Shan, Yanbing Ma
Tachyplesin is a type of cationic β-hairpin antimicrobial peptide discovered in horseshoe crab approximately 30 years ago that is well known for both its potential antimicrobial activities against multidrug-resistant bacteria and its cytotoxicity to mammalian cells. Though its physical interactions with artificial membranes have been well studied, details of its physiological mechanism of action the physiological consequences of its action remain limited. By using the DNA-binding fluorescent dye propidium iodide to monitor membrane integrity, confocal microscopy to assess the intracellular location of FITC-tagged tachyplesin, and RNA sequencing of the differentially expressed genes in four Gram-negative bacteria ( Escherichia coli, Acinetobacter baumannii, Klebsiella pneumoniae , and Pseudomonas aeruginosa ) treated with lethal or sublethal concentrations of tachyplesin, we found that compared with levofloxacin-treated bacteria, tachyplesin-treated bacteria showed significant effects on the pathways underlying unsaturated fatty acid biosynthesis...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29764953/fighting-antibiotic-resistant-klebsiella-pneumoniae-with-sweet-immune-targets
#15
Roberto Adamo, Immaculada Margarit
Antibiotics and vaccines have greatly impacted human health in the last century by dramatically reducing the morbidity and mortality associated with infectious diseases. The recent challenge posed by the emergence of multidrug-resistant bacteria could possibly be addressed by novel immune prophylactic and therapeutic approaches. Among the newly threatening pathogens, Klebsiella pneumoniae is particularly worrisome in the nosocomial setting, and its surface polysaccharides are regarded as promising antigen candidates...
May 15, 2018: MBio
https://www.readbyqxmd.com/read/29764503/bacteriological-profile-of-neonatal-sepsis-and-antibiotic-susceptibility-pattern-of-isolates-admitted-at-kanti-children-s-hospital-kathmandu-nepal
#16
Nikita Singh Yadav, Saroj Sharma, Dhiraj Kumar Chaudhary, Prabhat Panthi, Pankaj Pokhrel, Anil Shrestha, Pappu Kumar Mandal
OBJECTIVE: Neonatal sepsis is a major cause of morbidity and mortality of newborns (< 1 month of age). Septicemia and drug resistance is a predominant issue for neonatal death in Nepal. This study is intended to find bacteriological profile of neonatal sepsis and antibiotic susceptibility pattern of the isolates from neonates at Kanti Children's Hospital, Kathmandu, Nepal. RESULTS: Out of 350 suspected cases of neonatal sepsis, 59 (16.9%) cases showed positive blood culture...
May 15, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29763630/clinical-and-molecular-epidemiologic-characteristics-of-carbapenem-resistant-klebsiella-pneumoniae-infection-colonization-among-neonates-in-china
#17
Dandan Yin, Lei Zhang, Aimin Wang, Leiyan He, Yun Cao, Fupin Hu, Chuanqing Wang
BACKGROUND: The spread of carbapenem-resistant Klebsiella pneumoniae (CR-KPN) is a major concern, but data on CR-KPN infection/colonization in paediatric populations are limited. AIM: This study aimed to analyze epidemiologic and clinical characteristics, therapeutic options of CR-KPN infections in neonates in China. METHODS: A retrospective study was performed at the Children's Hospital of Fudan University, including 88 neonates with CR-KPN admitted between November 2015 and October 2016...
May 12, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29761673/neonatal-risk-factors-for-colonization-with-extended-spectrum-beta-lactamase-producing-bacteria-in-the-neonatal-intensive-care-unit
#18
Viktoria Leikin-Zach, Eilon Shany, Maayan Yitshak-Sade, Ron Eshel, Tali Shafat, Avraham Borer, Rimma Melamed
BACKGROUND: Extended-spectrum beta-lactamase (ESBL) production is the most common antimicrobial resistance mechanism in the neonatal intensive care unit (NICU), with colonization and blood stream infections being a major threat to this population. Since 2013, all NICU admissions at our facility were screened twice weekly for ESBL colonization. OBJECTIVES: To determine independent risk factors for colonization of infants with ESBL-producing bacteria in the NICU. METHODS: A retrospective case study of ESBL-colonized infants vs...
May 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29760961/ctx-m-15-is-established-in-most-multidrug-resistant-uropathogenic-enterobacteriaceae-and-pseudomonaceae-from-hospitals-in-nigeria
#19
David Olusoga Ogbolu, O A Terry Alli, Mark Alexander Webber, Adeolu Sunday Oluremi, Omoboriowo Moses Oloyede
β-Lactam antibiotics are widely used to treat urinary tract infections in Nigeria. This study aimed to determine the presence and characteristics of extended spectrum β-lactamases in commonly isolated uropathogenic Gram-negative bacteria (GNB) in Nigeria. Fifty non-duplicate GNB isolates consisting of Escherichia coli , 19; Klebsiella pneumoniae , 21; and Pseudomonas aeruginosa , 10 were obtained from three tertiary hospitals in Nigeria. The antibiotic susceptibility testing of all isolates to a panel of antibiotics including minimum inhibitory concentrations (MICs) and extended spectrum β-lactamases was determined...
April 2018: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/29760533/cross-specificity-of-protective-human-antibodies-against-klebsiella-pneumoniae-lps-o-antigen
#20
Tim Rollenske, Valeria Szijarto, Jolanta Lukasiewicz, Luis M Guachalla, Katarina Stojkovic, Katharina Hartl, Lukas Stulik, Simone Kocher, Felix Lasitschka, Mohammed Al-Saeedi, Jutta Schröder-Braunstein, Moritz von Frankenberg, Gereon Gaebelein, Peter Hoffmann, Sabrina Klein, Klaus Heeg, Eszter Nagy, Gabor Nagy, Hedda Wardemann
Humoral immune responses to microbial polysaccharide surface antigens can prevent bacterial infection but are typically strain specific and fail to mediate broad protection against different serotypes. Here we describe a panel of affinity-matured monoclonal human antibodies from peripheral blood immunoglobulin M-positive (IgM+ ) and IgA+ memory B cells and clonally related intestinal plasmablasts, directed against the lipopolysaccharide (LPS) O-antigen of Klebsiella pneumoniae, an opportunistic pathogen and major cause of antibiotic-resistant nosocomial infections...
May 14, 2018: Nature Immunology
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