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https://www.readbyqxmd.com/read/27919287/chemical-profiling-antimicrobial-and-insecticidal-evaluations-of-polygonum-hydropiper-l
#1
Muhammad Ayaz, Muhammad Junaid, Farhat Ullah, Abdul Sadiq, Muhammad Ovais, Waqar Ahmad, Sajjad Ahmad, Anwar Zeb
BACKGROUND: The emergence of multidrug resistant (MDR) pathogens is of great concern to the global health community. Our ability to effectively treat diseases is based on the discovery of potent drugs for the treatment of these challenging diseases. Traditional medicines are one of the major sources for the discovery of safe, effective and economical drug candidates. In order to validate its antibacterial, antifungal and insecticidal potentials with respect to traditional uses, we have screened for the first time Polygonum hydropiper against pathogenic bacterial, fungal strains and a variety of insects...
December 5, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27918382/conventional-versus-prolonged-infusion-of-meropenem-in-neonates-with-gram-negative-late-onset-sepsis-a-randomized-controlled-trial
#2
Abd Elazeez Shabaan, Islam Nour, Heba Elsayed Eldegla, Nehad Nasef, Basma Shouman, Hesham Abdel-Hady
BACKGROUND: Gram-negative bacteria are associated with significant morbidity and mortality in preterm and term newborns. Meropenem has widespread efficacy and often allows for monotherapy in this group. Prolonged infusion instead of infusion over 30 minutes has been suggested to result in higher microbiologic efficacy. OBJECTIVE: To compare the clinical and microbiologic efficacy and safety of prolonged infusions versus conventional dosing of meropenem in neonates with Gram negative late onset sepsis (GN-LOS)...
November 30, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27918204/removal-of-listeria-monocytogenes-dual-species-biofilms-using-combined-enzyme-benzalkonium-chloride-treatments
#3
Pedro Rodríguez-López, Alba Carballo-Justo, Lorraine A Draper, Marta L Cabo
The effects of pronase (PRN), cellulase (CEL) or DNaseI alone or combined with benzalkonium chloride (BAC) against Listeria monocytogenes-carrying biofilms were assayed. The best removal activity against L. monocytogenes-Escherichia coli biofilms was obtained using DNaseI followed by PRN and CEL. Subsequently, a modified logistic model was used to quantify the combined effects of PRN or DNaseI with BAC. A better BAC performance after PRN compared to DNaseI eradicating L. monocytogenes was observed. In E. coli the effects were the opposite...
December 5, 2016: Biofouling
https://www.readbyqxmd.com/read/27917157/otopathogenic-pseudomonas-aeruginosa-enters-and-survives-inside-macrophages
#4
Rahul Mittal, Christopher V Lisi, Hansi Kumari, M'hamed Grati, Patricia Blackwelder, Denise Yan, Chaitanya Jain, Kalai Mathee, Paulo H Weckwerth, Xue Z Liu
Otitis media (OM) is a broad term describing a group of infectious and inflammatory disorders of the middle ear. Despite antibiotic therapy, acute OM can progress to chronic suppurative otitis media (CSOM) characterized by ear drum perforation and purulent discharge. Pseudomonas aeruginosa is the most common pathogen associated with CSOM. Although, macrophages play an important role in innate immune responses but their role in the pathogenesis of P. aeruginosa-induced CSOM is not known. The objective of this study is to examine the interaction of P...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27916621/point-should-inhaled-antibiotic-therapy-be-routinely-used-for-the-treatment-of-bacterial-lower-respiratory-tract-infections-in-the-icu-setting-yes
#5
EDITORIAL
Richard G Wunderink
Routine use of aerosolized antibiotics is the most rational approach to the current treatment dilemmas for severe hospital-acquired pneumonia (HAP) requiring endotracheal intubation or ventilator-associated pneumonia (VAP). The two main issues for HAP/VAP are inappropriate initial therapy and ineffective therapy for multidrug resistant (MDR) pathogens, particularly gram negative bacilli such as Pseudomonas aeruginosa and Acinetobacter species. The emergence of extended spectrum beta-lactamases (ESBL) and carbapenem resistance in Enterobacteriaceae (CRE) have made even common pathogens such as Escherichia coli difficult to treat...
November 22, 2016: Chest
https://www.readbyqxmd.com/read/27915986/molecular-analysis-of-pseudomonas-aeruginosa-metallo-beta-lactamase-a-first-report-of-an-iranian-referral-pediatric-hospital
#6
Shima Mahmoudi, Babak Pourakbari, Mansoure Hosseini, Amir Esmaeil Alyari, Mohammad Taghi Haghi Ashtiani, Setareh Mamishi
INTRODUCTION: Pseudomonas aerouginosa is an important opportunistic pathogen causes clinical infections among ill patients. Metallo- Beta- lactamases (MBLs) are important mechanisms of carbapenem (drug of choice) resistance among Pseudomonas aerouginosa isolates. The aim of this study was to determine B- lactamases genes (bla-genes) in P. aerouginosa isolates and to detect percentage of MBLs among P. aerouginosa isolates in different wards. MATERIAL AND METHODS: Clinical isolates of P...
December 2, 2016: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/27909624/for-reliable-urine-cultures-in-the-detection-of-complicated-urinary-tract-infection-do-we-use-urine-specimens-obtained-with-urethral-catheter-or-a-nephrostomy-tube
#7
Gülay Dede, Özcan Deveci, Onur Dede, Mazhar Utanğac, Mansur Dağgulli, Necmettin Penbegül, Namık Kemal Hatipoğlu
OBJECTIVE: The aim of this study was to compare the results of urine cultures obtained either from urethral, and percutaneous nephrostomy (PCN) catheters. MATERIALS AND METHODS: This study included 328 consecutive patients that underwent PCN at our institution with complicated urinary tract infections (UTIs) between July 2010 and April 2015. Results of urine cultures obtained from the urethral and nephrostomy catheters were compared. RESULTS: This study included 152 male and 176 female patients...
December 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27908581/sonodynamic-inactivation-of-gram-positive-and-gram-negative-bacteria-using-a-rose-bengal-antimicrobial-peptide-conjugate
#8
David Costley, Heather Nesbitt, Nigel Ternan, James Dooley, Ying-Ying Huang, Michael R Hamblin, Anthony P McHale, John F Callan
Combating antimicrobial resistance is one of the most serious public health challenges facing society today. The development of new antibiotics or alternative techniques that can help combat antimicrobial resistance is being prioritised by many governments and stakeholders across the globe. Antimicrobial photodynamic therapy is one such technique that has received considerable attention but is limited by the inability of light to penetrate through human tissue, reducing its effectiveness when used to treat deep-seated infections...
November 17, 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27907224/single-versus-combination-intravenous-anti-pseudomonal-antibiotic-therapy-for-people-with-cystic-fibrosis
#9
REVIEW
Heather E Elphick, Alison Scott
BACKGROUND: Choice of antibiotic, and the use of single or combined therapy are controversial areas in the treatment of respiratory infection due to Pseudomonas aeruginosa in cystic fibrosis (CF). Advantages of combination therapy include wider range of modes of action, possible synergy and reduction of resistant organisms; advantages of monotherapy include lower cost, ease of administration and reduction of drug-related toxicity. Current evidence does not provide a clear answer and the use of intravenous antibiotic therapy in cystic fibrosis requires further evaluation...
December 1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27901391/comparison-of-antibacterial-effects-among-three-foams-used-with-negative-pressure-wound-therapy-in-an-ex-vivo-equine-perfused-wound-model
#10
Lore L Van Hecke, Maarten Haspeslagh, Katleen Hermans, Ann M Martens
OBJECTIVE To compare antibacterial effects among 3 types of foam used with negative-pressure wound therapy (NPWT) in an ex vivo equine perfused wound model. SAMPLES Abdominal musculocutaneous flaps from 6 equine cadavers. PROCEDURES Each musculocutaneous flap was continuously perfused with saline (0.9% NaCl) solution. Four 5-cm circular wounds were created in each flap and contaminated with 10(6) CFUs of both Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA). After a 1-hour incubation period, 1 of 4 treatments (NPWT with silver-impregnated polyurethane foam [NPWT-AgPU], polyurethane foam [NPWT-PU], or polyvinyl alcohol foam [NPWT-PVA] or a nonadherent dressing containing polyhexamethylene biguanide without NPWT [control]) was randomly applied to each wound...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901027/targeted-killing-of-myofibroblasts-by-biosurfactant-di-rhamnolipid-suggests-a-therapy-against-scar-formation
#11
Chong Shen, Lifang Jiang, Huawei Shao, Chuangang You, Guoliang Zhang, Sitong Ding, Tingwei Bian, Chunmao Han, Qin Meng
Pathological myofibroblasts are often involved in skin scarring via generating contractile force and over-expressing collagen fibers, but no compound has been found to inhibit the myofibroblasts without showing severe toxicity to surrounding physiological cells. Here we report that di-rhamnolipid, a biosurfactant secreted by Pseudomonas aeruginosa, showed potent effects on scar therapy via a unique mechanism of targeted killing the myofibroblasts. In cell culture, the fibroblasts-derived myofibroblasts were more sensitive to di-rhamnolipid toxicity than fibroblasts at a concentration-dependent manner, and could be completely inhibited of their specific functions including α-SMA expression and collagen secretion/contraction...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900506/arabidopsis-thaliana-methionine-sulfoxide-reductase-b8-influences-stress-induced-cell-death-and-effector-triggered-immunity
#12
Shweta Roy, Ashis Kumar Nandi
Reactive oxygen species (ROS) oxidize methionine to methionine sulfoxide (MetSO) and thereby inactivate proteins. Methionine sulfoxide reductase (MSR) enzyme converts MetSO back to the reduced form and thereby detoxifies the effect of ROS. Our results show that Arabidopsis thaliana MSR enzyme coding gene MSRB8 is required for effector-triggered immunity and containment of stress-induced cell death in Arabidopsis. Plants activate pattern-triggered immunity (PTI), a basal defense, upon recognition of evolutionary conserved molecular patterns present in the pathogens...
November 29, 2016: Plant Molecular Biology
https://www.readbyqxmd.com/read/27900326/case-of-severe-alcoholic-hepatitis-treated-with-granulocytapheresis
#13
Yukari Watanabe, Kenya Kamimura, Tomohiro Iwasaki, Hiroyuki Abe, Shunsaku Takahashi, Ken-Ichi Mizuno, Manabu Takeuchi, Atsushi Eino, Ichiei Narita, Shuji Terai
Severe alcoholic hepatitis (AH) has a high mortality, and it is associated with encephalopathy, acute renal failure, sepsis, gastrointestinal bleeding, and endotoxemia. The 28-d mortality remains poor (34%-40%), because no effective treatment has been established. Recently, corticosteroids (CS) have been considered effective for significantly improving the prognosis of those with AH, as it prevents the production of pro-inflammatory cytokines. However, CS are not always appropriate as an initial therapeutic option, such as in cases with an infection or resistance to CS...
November 16, 2016: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/27899093/microbiological-profile-of-corneal-ulcer-cases-diagnosed-in-a-tertiary-care-ophthalmological-institute-in-nepal
#14
Sharmila Suwal, Dinesh Bhandari, Pratigya Thapa, Mohan Krishna Shrestha, Jyoti Amatya
BACKGROUND: Corneal ulcer, a major cause of monocular blindness in developing countries has consistently been listed as the major cause of blindness and visual disability in many of the developing nations in Asia, Africa and the Middle East, ranking second only to cataract. This study was carried out to determine the microbiological profile of corneal ulcer cases diagnosed among patients visiting Tilganga Institute of Ophthalmology (TIO), Nepal. METHODS: A total of 101 corneal scrapping samples were tested for routine culture and antibiotic susceptibility at the pathology department of TIO Nepal from April to October 2014...
November 29, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27897434/time-to-positivity-type-of-culture-media-and-oxidase-test-performed-on-positive-blood-culture-vials-to-predict-pseudomonas-aeruginosa-in-patients-with-gram-negative-bacilli-bacteraemia
#15
N Cobos-Triguero, Y Zboromyrska, L Morata, I Alejo, C De La Calle, A Vergara, C Cardozo, M P Arcas, A Soriano, F Marco, J Mensa, M Almela, J A Martínez
OBJECTIVE: The aim of this study was to determine the usefulness of oxidase test and time-to-positivity (TTP) in aerobic and anaerobic blood culture vials to detect the presence of Pseudomonas aeruginosa in patients with Gram-negative bacilli (GNB) bacteraemia. METHODS: TTP was recorded for each aerobic and anaerobic blood culture vial of monomicrobial bacteraemia due to GNB. Oxidase test was performed in a pellet of the centrifuged content of the positive blood culture...
November 25, 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/27895014/ceftazidime-avibactam-as-salvage-therapy-for-infections-caused-by-carbapenem-resistant-organisms-a-case-series-from-the-compassionate-use-program
#16
Elizabeth Temkin, Julian Torre-Cisneros, Bojana Beovic, Natividad Benito, Maddalena Giannella, Raúl Gilarranz, Cameron Jeremiah, Belén Loeches, Isabel Machuca, María José Jiménez-Martín, José Antonio Martínez, Marta Mora-Rillo, Enrique Navas, Michael Osthoff, Juan Carlos Pozo, Juan Carlos Ramos Ramos, Marina Rodriguez, Miguel Sánchez García, Pierluigi Viale, Michel Wolff, Yehuda Carmeli
Ceftazidime-avibactam (CAZ-AVI) is a recently approved β-lactam β-lactamase inhibitor combination with the potential to treat serious infections caused by carbapenem-resistant organisms. Few patients with such infections were included in the CAZ-AVI clinical trials, and clinical experience is lacking. We present a case series of patients with infections caused by carbapenem-resistant Enterobacteriaceae (CRE) or Pseudomonas aeruginosa (CRPa) who were treated with CAZ-AVI salvage therapy on a compassionate-use basis...
November 28, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27894749/the-microbiology-of-diabetic-foot-infections-in-patients-recently-treated-with-antibiotic-therapy-a-prospective-study-from-india
#17
Ashu Rastogi, Suja Sukumar, Abhishek Hajela, Soham Mukherjee, Pinaki Dutta, Sanjay Kumar Bhadada, Anil Bhansali
AIM: Clinicians often treat clinically infected diabetic foot ulcers without information from cultures of the wound. The results of wound cultures may also be affected by previous antibiotic therapy. Thus, we aimed to study the microbial isolates, and antimicrobial sensitivity of previously treated patients with a clinically infected DFU. RESEARCH DESIGN AND METHODS: 293 consecutive patients with clinically infected DFU on prior antimicrobial treatment within the immediate past few days for a duration greater than one week were evaluated for microbial etiology, antibiotic sensitivity and final outcomes...
November 9, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27893197/importance-to-question-sinonasal-symptoms-and-to-perform-rhinoscopy-and-rhinomanometry-in-cystic-fibrosis-patients
#18
J M Bock, M Schien, C Fischer, L Naehrlich, M Kaeding, O Guntinas-Lichius, A Gerber, C Arnold, J G Mainz
OBJECTIVES: Cystic fibrosis (CF) patients almost regularly reveal sinonasal pathology. The purpose of this study was to assess association between objective and subjective measurements of sinonasal involvement comparing nasal airflow obtained by active anterior rhinomanometry (AAR), nasal endoscopic findings, and symptoms assessed with the Sino-Nasal Outcome Test-20 (SNOT-20). METHODS: Nasal cavities were explored by anterior rigid rhinoscopy and findings were compared to inspiratory nasal airflow measured by AAR to quantify nasal patency and subjective health-related quality of life in sinonasal disease obtained with the SNOT-20 questionnaire...
November 28, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27891372/experience-with-splenic-abscess-from-southern-india
#19
Mallikarjuna Shetty, Swaroopa Deme, Knkj Mohan, Krishna Prasad Adiraju, Nageswar Rao Modugu, Naval Chandra, Amvr Narendra, Sathyanarayana Raju Yadati
INTRODUCTION: Splenic abscess is a rare entity with potentially life threatening complications. Sparse recent published data are available documenting the aetiological profile and management of patients with splenic abscess from India. AIM: To study the clinical profile of splenic abscess. MATERIALS AND METHODS: We retrospectively collected data from case records of admitted patients with splenic abscesses, to Nizam's Institute of Medical Sciences and Hospital which is a multispecialty, tertiary care referral hospital over a period of 15 months (from March 2014 to May 2015) and parameters studied were age, sex, symptoms, signs, risk factors, investigations like Ultrasound, CT scan, blood & microbiological culture, treatment and outcome...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889415/controlled-extended-octenidine-release-from-a-bacterial-nanocellulose-poloxamer-hybrid-system
#20
Y Alkhatib, M Dewaldt, S Moritz, R Nitzsche, D Kralisch, D Fischer
Although bacterial nanocellulose (BNC) has been widely investigated in the last 10years as drug delivery system, up to now no long-term controlled release of drugs could be realized. Therefore, the aim of the present work was the development of a BNC-based drug delivery system that provides prolonged retention time for the antiseptic octenidine up to one week with improved mechanical and antimicrobial properties as well as a high biocompatibility. BNC was modified by incorporation of differently concentrated Poloxamers 338 and 407 as micelles and gels that were extensively investigated regarding size, surface charge, and dynamic viscosity...
November 24, 2016: European Journal of Pharmaceutics and Biopharmaceutics
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