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https://www.readbyqxmd.com/read/28820151/a-literature-review-and-update-on-the-incidence-and-microbiology-spectrum-of-postcataract-surgery-endophthalmitis-over-past-two-decades-in-india
#1
REVIEW
Prajna Lalitha, Sabyasachi Sengupta, Ravilla D Ravindran, Savitri Sharma, Joveeta Joseph, Vikas Ambiya, Taraprasad Das
PURPOSE: The purpose of this study was to review the incidence and microbiology of acute postcataract surgery endophthalmitis in India. METHODS: Systematic review of English-language PubMed referenced articles on endophthalmitis in India published in the past 21 years (January 1992-December 2012), and retrospective chart review of 2 major eye care facilities in India in the past 5 years (January 2010-December 2014) were done. The incidence data were collected from articles that described "in-house" endophthalmitis and the microbiology data were collected from all articles...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819175/in-vivo-therapeutic-efficacy-of-frog-skin-derived-peptides-against-pseudomonas-aeruginosa-induced-pulmonary-infection
#2
Chen Chen, Maria Luisa Mangoni, Y Peter Di
Pseudomonas aeruginosa is an opportunistic and frequently drug-resistant pulmonary pathogen especially in cystic fibrosis sufferers. Recently, the frog skin-derived antimicrobial peptide (AMP) Esc(1-21) and its diastereomer Esc(1-21)-1c were found to possess potent in vitro antipseudomonal activity. Here, they were first shown to preserve the barrier integrity of airway epithelial cells better than the human AMP LL-37. Furthermore, Esc(1-21)-1c was more efficacious than Esc(1-21) and LL-37 in protecting host from pulmonary bacterial infection after a single intra-tracheal instillation at a very low dosage of 0...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818886/draft-genome-sequences-of-two-pseudomonas-aeruginosa-bloodstream-infection-isolates-associated-with-rapid-patient-death
#3
K L McCarthy, A V Jennison, A M Wailan, D L Paterson
The morbidity and mortality associated with Pseudomonas aeruginosa bloodstream infections are significant. New strategies are required to treat such infections. We report here the draft genome sequences of two antibiotic-sensitive P. aeruginosa bloodstream infection isolates that were associated with rapid death in nonneutropenic patients.
August 17, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28816601/stomate-based-defense-and-environmental-cues
#4
Shweta Panchal, Maeli Melotto
Environmental conditions play crucial roles in modulating immunity and disease in plants. For instance, many bacterial disease outbreaks occur after periods of high humidity and rain. A critical step in bacterial infection is entry into the plant interior through wounds or natural openings, such as stomata. Bacterium-triggered stomatal closure is an integral part of the plant immune response to reduce pathogen invasion. Recently, we found that high humidity compromises stomatal defense, which is accompanied by regulation of the salicylic acid and jasmonic acid pathways in guard cells...
August 17, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28815941/t3ss-effector-exoy-reduces-inflammasome-related-responses-by-suppressing-bacterial-motility-and-delaying-activation-of-nf-%C3%AE%C2%BAb-and-caspase-1
#5
Jisu Jeon, Yong-Jae Kim, Heesung Shin, Un-Hwan Ha
Type III secreted effectors are essential for modulating host immune responses during the pathogenesis of Pseudomonas aeruginosa infections. Little is known about the impact of one of the effectors, ExoY, on inflammasome activation, which results in IL-1β production and pyroptotic cell death. In this study, we found that transcriptional expression of Il-1β was induced to a lesser extent in response to an exoY harboring strain than to a deleted mutant. This suppressive effect of ExoY was verified by complementation assay as well as by direct translocation of exoY into host cells...
August 16, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28815897/multidrug-resistant-enterobacteriaceae-pseudomonas-aeruginosa-and-vancomycin-resistant-enterococci-three-major-threats-to-hematopoietic-stem-cell-transplant-recipients
#6
REVIEW
Michael J Satlin, Thomas J Walsh
Hematopoietic stem cell transplant (HSCT) recipients are uniquely threatened by the emergence of multidrug-resistant (MDR) bacteria because these patients rely on immediate active antimicrobial therapy to combat bacterial infections. This review describes the epidemiology and treatment considerations for three challenging MDR bacterial pathogens in HSCT recipients: MDR Enterobacteriaceae, including extended-spectrum β-lactamase (ESBL)-producing and carbapenem-resistant Enterobacteriaceae (CRE), Pseudomonas aeruginosa, and vancomycin-resistant Enterococcus (VRE)...
August 16, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28815300/holaphyllamine-a-steroid-is-able-to-induce-defense-responses-in-arabidopsis-thaliana-and-increases-resistance-against-bacterial-infection
#7
Abderrakib Zahid, Rim Jaber, Ferdousse Laggoun, Arnaud Lehner, Isabelle Remy-Jouet, Olivier Pamlard, Sandra Beaupierre, Jérome Leprince, Marie-Laure Follet-Gueye, Maïté Vicré-Gibouin, Xavier Latour, Vincent Richard, Catherine Guillou, Patrice Lerouge, Azeddine Driouich, Jean-Claude Mollet
A chemical screen of plant-derived compounds identified holaphyllamine, a steroid, able to trigger defense responses in Arabidopsis thaliana and improve resistance against the pathogenic bacterium Pseudomonas syringae pv tomato DC3000. A chemical screen of 1600 plant-derived compounds was conducted and allowed the identification of a steroid able to activate defense responses in A. thaliana at a concentration of 1 µM without altering growth. The identified compound is holaphyllamine (HPA) whose chemical structure is similar to steroid pregnanes of mammals...
August 16, 2017: Planta
https://www.readbyqxmd.com/read/28814278/epidemiology-and-outcomes-of-endophthalmitis-in-chronic-dialysis-patients-a-13-year-experience-in-a-tertiary-referral-center-in-taiwan
#8
George Kuo, Yueh-An Lu, Wei-Chiao Sun, Chao-Yu Chen, Huang-Kai Kao, YuJr Lin, Chia-Hui Lee, Cheng-Chieh Hung, Ya-Chung Tian, Hsiang-Hao Hsu
BACKGROUND: Endophthalmitis is a severe eye infection leading to disabling outcome. Because there were only a few case report illustrating endophthalmitis in chronic dialysis patient, we would like to investigate the epidemiology and clinical features of endophthalmitis in chronic dialysis patient in a tertiary referral center. METHODS: We searched the health information system in the study hospital with ICD9 encoding endophthalmitis during Jan. 2002 to Dec. 2015...
August 16, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28813677/the-il-17f-il-17rc-axis-promotes-respiratory-allergy-in-the-proximal-airways
#9
Antonella De Luca, Marilena Pariano, Barbara Cellini, Claudio Costantini, Valeria Rachela Villella, Shyam Sushama Jose, Melissa Palmieri, Monica Borghi, Claudia Galosi, Giuseppe Paolicelli, Luigi Maiuri, Jan Fric, Teresa Zelante
The interleukin 17 (IL-17) cytokine and receptor family is central to antimicrobial resistance and inflammation in the lung. Mice lacking IL-17A, IL-17F, or the IL-17RA subunit were compared with wild-type mice for susceptibility to airway inflammation in models of infection and allergy. Signaling through IL-17RA was required for efficient microbial clearance and prevention of allergy; in the absence of IL-17RA, signaling through IL-17RC on epithelial cells, predominantly by IL-17F, significantly exacerbated lower airway Aspergillus or Pseudomonas infection and allergic airway inflammation...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28813669/the-phage-nucleus-and-tubulin-spindle-are-conserved-among-large-pseudomonas-phages
#10
Vorrapon Chaikeeratisak, Katrina Nguyen, MacKennon E Egan, Marcella L Erb, Anastasia Vavilina, Joe Pogliano
We recently demonstrated that the large Pseudomonas chlororaphis bacteriophage 201φ2-1 assembles a nucleus-like structure that encloses phage DNA and segregates proteins according to function, with DNA processing proteins inside and metabolic enzymes and ribosomes outside the nucleus. Here, we investigate the replication pathway of the Pseudomonas aeruginosa bacteriophages φKZ and φPA3. Bacteriophages φKZ and φPA3 encode a proteinaceous shell that assembles a nucleus-like structure that compartmentalizes proteins and DNA during viral infection...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28813520/the-frequency-of-class1-and-2-integrons-in-pseudomonas-aeruginosa-strains-isolated-from-burn-patients-in-a-burn-center-of-ahvaz-iran
#11
Azar Dokht Khosravi, Moloudsadat Motahar, Effat Abbasi Montazeri
BACKGROUND: Pseudomonas aeruginosa is an opportunistic pathogen with the ability to cause severe nosocomial infections and remains a major problem in burn patients. This organism shows a remarkable antimicrobial resistance and is often resistant to multiple antibiotics. Integron genes as mobile genetic elements are playing an important role in the spread of P. aeruginosa antibiotic resistance. This study was aimed to investigate the occurrence of class 1, and 2 integron genes (int1, int2), among P...
2017: PloS One
https://www.readbyqxmd.com/read/28811792/antimicrobial-susceptibility-patterns-of-clinical-isolates-of-pseudomonas-aeruginosa-isolated-from-patients-of-respiratory-tract-infections-in-a-tertiary-care-hospital-peshawar
#12
Abdul Samad, Tanveer Ahmed, Afaq Rahim, Abdul Khalil, Iftikhar Ali
OBJECTIVE: This study aims to determine the prevalence and susceptibility pattern of Pseudomonas aeruginosa and multidrug-resistant (MDR) isolates in patients suffering from respiratory tract infection. METHODS: A cross sectional study was conducted from January to December 2014 in Northwest General Hospital and Research Centre, Peshawar. A total of 615 sputum samples were collected from both in and out-patients. Sputum samples were collected as per standard procedure and were inoculated on Blood, MacConkey and Chocolate agar...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811757/cyclic-dipeptides-from-bacillus-vallismortis-bs07-require-key-components-of-plant-immunity-to-induce-disease-resistance-in-arabidopsis-against-pseudomonas-infection
#13
Seong Woo Noh, Rira Seo, Jung-Kwon Park, Md Maniruzzaman Manir, Kyungseok Park, Mee Kyung Sang, Surk-Sik Moon, Ho Won Jung
Cyclic dipeptides (CDPs) are one of the simplest compounds produced by living organisms. Plant-growth promoting rhizobacteria (PGPRs) also produce CDPs that can induce disease resistance. Bacillus vallismortis strain BS07 producing various CDPs has been evaluated as a potential biocontrol agent against multiple plant pathogens in chili pepper. However, plant signal pathway triggered by CDPs has not been fully elucidated yet. Here we introduce four CDPs, cyclo(Gly-L-Pro) previously identified from Aspergillus sp...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811756/pseudomonas-oleovorans-strain-kbpf-004-culture-supernatants-reduced-seed-transmission-of-cucumber-green-mottle-mosaic-virus-and-pepper-mild-mottle-virus-and-remodeled-aggregation-of-126-kda-and-subcellular-localization-of-movement-protein-of-pepper-mild-mottle
#14
Nam-Gyu Kim, Eun-Young Seo, Sang-Hyuk Han, Jun-Su Gong, Cheol-Nam Park, Ho-Seop Park, Leslie L Domier, John Hammond, Hyoun-Sub Lim
Efforts to control viral diseases in crop production include several types of physical or chemical treatments; antiviral extracts of a number of plants have also been examined to inhibit plant viral infection. However, treatments utilizing naturally selected microorganisms with activity against plant viruses are poorly documented. Here we report isolation of a soil inhabiting bacterium, Pseudomonas oleovorans strain KBPF-004 (developmental code KNF2016) which showed antiviral activity against mechanical transmission of tobamoviruses...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811631/development-of-a-primary-human-co-culture-model-of-inflamed-airway-mucosa
#15
Lael M Yonker, Hongmei Mou, Kengyeh K Chu, Michael A Pazos, Huimin Leung, Dongyao Cui, Jinhyeob Ryu, Rhianna M Hibbler, Alexander D Eaton, Tim N Ford, J R Falck, T Bernard Kinane, Guillermo J Tearney, Jayaraj Rajagopal, Bryan P Hurley
Neutrophil breach of the mucosal surface is a common pathological consequence of infection. We present an advanced co-culture model to explore neutrophil transepithelial migration utilizing airway mucosal barriers differentiated from primary human airway basal cells and examined by advanced imaging. Human airway basal cells were differentiated and cultured at air-liquid interface (ALI) on the underside of 3 µm pore-sized transwells, compatible with the study of transmigrating neutrophils. Inverted ALIs exhibit beating cilia and mucus production, consistent with conventional ALIs, as visualized by micro-optical coherence tomography (µOCT)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811074/management-of-multidrug-resistant-gram-negative-bacilli-infections-in-solid-organ-transplant-recipients-set-gesitra-seimc-reipi-recommendations
#16
REVIEW
J M Aguado, J T Silva, M Fernández-Ruiz, E Cordero, J Fortún, C Gudiol, L Martínez-Martínez, E Vidal, L Almenar, B Almirante, R Cantón, J Carratalá, J J Caston, E Cercenado, C Cervera, J M Cisneros, M G Crespo-Leiro, V Cuervas-Mons, J Elizalde-Fernández, M C Fariñas, J Gavaldà, M J Goyanes, B Gutiérrez-Gutiérrez, D Hernández, O Len, R López-Andujar, F López-Medrano, P Martín-Dávila, M Montejo, A Moreno, A Oliver, A Pascual, E Pérez-Nadales, A Román-Broto, R San-Juan, D Serón, A Solé-Jover, M Valerio, P Muñoz, J Torre-Cisneros
Solid organ transplant (SOT) recipients are especially at risk of developing infections by multidrug resistant (MDR) Gram-negative bacilli (GNB), as they are frequently exposed to antibiotics and the healthcare setting, and are regulary subject to invasive procedures. Nevertheless, no recommendations concerning prevention and treatment are available. A panel of experts revised the available evidence; this document summarizes their recommendations: (1) it is important to characterize the isolate's phenotypic and genotypic resistance profile; (2) overall, donor colonization should not constitute a contraindication to transplantation, although active infected kidney and lung grafts should be avoided; (3) recipient colonization is associated with an increased risk of infection, but is not a contraindication to transplantation; (4) different surgical prophylaxis regimens are not recommended for patients colonized with carbapenem-resistant GNB; (5) timely detection of carriers, contact isolation precautions, hand hygiene compliance and antibiotic control policies are important preventive measures; (6) there is not sufficient data to recommend intestinal decolonization; (7) colonized lung transplant recipients could benefit from prophylactic inhaled antibiotics, specially for Pseudomonas aeruginosa; (8) colonized SOT recipients should receive an empirical treatment which includes active antibiotics, and directed therapy should be adjusted according to susceptibility study results and the severity of the infection...
July 26, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28810631/hyperoside-inhibits-biofilm-formation-of-pseudomonas-aeruginosa
#17
Yixuan Sun, Fengjun Sun, Wei Feng, Xuewen Qiu, Yao Liu, Bo Yang, Yongchuan Chen, Peiyuan Xia
Pseudomonas aeruginosa (P. aeruginosa) is a common pathogen in hospital-acquired infection and is readily able to form biofilms. Due to its high antibiotic resistance, traditional antibacterial treatments exert a limited effect on P. aeruginosa biofilm infections. It has been indicated that hyperoside inhibits P. aeruginosa PAO1 (PAO1) biofilm formation without affecting growth. Therefore, the current study examined the biofilm formation and quorum sensing (QS) system of PAO1 in the presence of hyperoside. Confocal laser scanning microscopy analysis demonstrated that hyperoside significantly inhibited biofilm formation...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810610/microbial-investigations-in-throat-swab-and-tracheal-aspirate-specimens-are-beneficial-to-predict-the-corresponding-endotracheal-tube-biofilm-flora-among-intubated-neonates-with-ventilator-associated-pneumonia
#18
Yun Pan, Lizhong Du, Qing Ai, Sijie Song, Xiaoli Tang, Danping Zhu, Jialin Yu
Ventilator-associated pneumonia (VAP) is a common nosocomial infection in neonatal intensive care units with high morbidity and mortality. Bacterial biofilm in the endotracheal tube (ET) provides a notable and persistent source of pathogens that may cause VAP, and thus is important for VAP detection. However, during intubation microbial investigations in ET, samples are unavailable due to the infeasibility of collecting ET samples during intubation of neonates. It is therefore of great importance to find alternative sources of samples that can help identify the ET biofilm flora...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810329/-distribution-and-drug-resistance-of-pathogens-at-hematology-department-of-jiangsu-province-from-2014-to-2015-results-from-a-multicenter-retrospective-study
#19
Y K Wan, W Sang, B Chen, Y G Yang, L Q Zhang, A N Sun, Y J Liu, Y Xu, Y P Cai, C B Wang, Y F Shen, Y W Jiang, X Y Zhang, W Xu, M Hong, T Chen, R R Xu, F Li, Y L Xu, Y Xue, Y L Lu, Z M He, W M Dong, Z Chen, M H Ji, Y Y Yang, L J Zhai, Y Zhao, G Q Wu, J H Ding, J Cheng, W B Cai, Y M Sun, J Ouyang
Objective: To describe the distribution and drug resistance of pathogens at hematology department of Jiangsu Province from 2014 to 2015 to provide reference for empirical anti-infection treatment. Methods: Pathogens were from hematology department of 26 tertiary hospitals in Jiangsu Province from 2014 to 2015. Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or agar dilution method. Collection of drug susceptibility results and corresponding patient data were analyzed...
July 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28808398/mechanism-of-action-of-isolated-caffeic-acid-and-epicatechin-3-gallate-from-euphorbia-hirta-against-pseudomonas-aeruginosa
#20
Shanmugapriya Perumal, Roziahanim Mahmud, Sabariah Ismail
BACKGROUND: The escalating dominance of resistant Pseudomonas aeruginosa strains as infectious pathogen had urged the researchers to look for alternative and complementary drugs. OBJECTIVE: The objective of this study is to address the biological targets and probable mechanisms of action underlying the potent antibacterial effect of the isolated compounds from Euphorbia hirta (L.) against P. aeruginosa. MATERIALS AND METHODS: The action mechanisms of caffeic acid (CA) and epicatechin 3-gallate (ECG) on P...
July 2017: Pharmacognosy Magazine
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