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https://www.readbyqxmd.com/read/29156350/photodynamic-inactivation-of-escherichia-coli-correlation-of-singlet-oxygen-kinetics-and-phototoxicity
#1
Alexander Müller, Annegret Preuß, Beate Röder
Photodynamic inactivation (PDI) of bacteria may play a major role in facing the challenge of the ever expanding antibiotic resistances. Here we report about the direct correlation of singlet oxygen luminescence kinetics and phototoxicity in E. coli cell suspension under PDI using the widely applied cationic photosensitizer TMPyP. Through direct access to the microenvironment, the time resolved investigation of singlet oxygen luminescence plays a key role in understanding the photosensitization mechanism and inactivation pathway...
November 13, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29154953/correlation-between-cefepime-utilization-and-pseudomonas-aeruginosa-resistance-rate-to-beta-lactams-and-carbapenems-in-patients-with-healthcare-associated-infections
#2
Zorana M Djordjevic, Marko M Folic, Slobodan M Jankovic
OBJECTIVES: There is direct link between overutilization or abuse of antibiotics and P.aeruginosa resistance rate, but other factors could influence the resistance rate, too. The study aim was to observe changes of P.aeruginosa resistance rate in patients with hospital acquired infections (HAIs) after a period of cefepime unavailability in an intensive care unit (ICU). METHODS: The study was designed as retrospective observational analysis of trends in utilization of antibiotics and density of resistance to antibiotics...
November 14, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29153761/microfluidics-for-combating-antimicrobial-resistance
#3
REVIEW
Zhengzhi Liu, Niaz Banaei, Kangning Ren
The ever-growing threat of antimicrobial resistance (AMR) demands immediate countermeasures. With its novelty and enabling features including downscaled analysis, precisely controlled local environment, and enhanced speed, accuracy, and cost-efficiency, microfluidics has demonstrated potential in several key areas, including furthering our understanding of bacteria, developing better susceptibility testing tools, and overcoming obstacles in discovery and research of new antibiotics. While ample research results in the field of microfluidics are available, their transformation into practical application is still lagging far behind...
August 8, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/29152146/breast-tissue-oral-and-urinary-microbiomes-in-breast-cancer
#4
Hannah Wang, Jessica Altemus, Farshad Niazi, Holly Green, Benjamin C Calhoun, Charles Sturgis, Stephen R Grobmyer, Charis Eng
It has long been proposed that the gut microbiome contributes to breast carcinogenesis by modifying systemic estrogen levels. This is often cited as a possible mechanism linking breast cancer and high-fat, low-fiber diets as well as antibiotic exposure, associations previously identified in population-based studies. More recently, a distinct microbiome has been identified within breast milk and tissue, but few studies have characterized differences in the breast tissue microbiota of patients with and without cancer, and none have investigated distant body-site microbiomes outside of the gut...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151013/decreasing-the-incidence-of-surgical-site-infections-following-joint-replacement-surgery
#5
Lorraine Hutzler, Jarrett Williams
OBJECTIVE: Despite the generalized use of prophylactic antibiotics in orthopaedic surgery, Surgical Site Infections (SSIs) are still a major source of morbidity, mortality, and hospital cost. This is due in part to the increasing prevalence of antibiotic resistant organisms. METHODS: A review of local epidemiology, the importance of an antibiotic stewardship program, patient optimization, and risk stratification options to reduce SSIs. RESULTS: The proportion of revisions due to infection is projected to rise rapidly over the next 25 years...
December 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/29150897/determining-best-outcomes-from-community-acquired-pneumonia-and-how-to-achieve-them
#6
REVIEW
Jane Hadfield, Lesley Bennett
Community-acquired pneumonia (CAP) is a common acute medical illness with a standard, effective treatment that was introduced before the evidenced-based medicine era. Mortality rates have improved in recent decades but improvements have been minimal when compared to other conditions such as acute coronary syndromes. The standardized approach to treatment makes CAP a target for comparative performance and outcome measures. While easy to collect, simplistic outcomes such as mortality, readmission and length of stay are difficult to interpret as they can be affected by subjective choices and health care resources...
November 17, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29149875/prevalence-of-antibiotic-prescription-in-pediatric-outpatients-in-italy-the-role-of-local-health-districts-and-primary-care-physicians-in-determining-variation-a-multilevel-design-for-healthcare-decision-support
#7
Mirko Di Martino, Adele Lallo, Ursula Kirchmayer, Marina Davoli, Danilo Fusco
BACKGROUND: According to scientific literature, antibacterials are prescribed for common pediatric conditions that do not benefit from antibiotic therapy. The link between antibiotic use and bacterial resistance is well known. Antibiotic overprescribing generates high social costs and severe consequences for children. Our objectives were to analyze antibiotic prescription patterns in pediatric outpatients residing in the Lazio region (Italy), to identify physicians' characteristics associated with increased propensity for prescription, to identify the priority axes for action to improve the rational use of antibiotics...
November 17, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29149176/a-simple-way-for-targeted-delivery-of-an-antibiotic-in-vitro-evaluation-of-a-nanoclay-based-composite
#8
Leslie Valdés, Irela Pérez, Louis Charles de Ménorval, Ernesto Altshuler, Jon Otto Fossum, Aramis Rivera
The sodium-modified form of fluorohectorite nanoclay (NaFh) is introduced as a potential drug carrier, demonstrating its ability for the controlled release of the broad-spectrum antibiotic Ciprofloxacin through in vitro tests. The new clay-drug composite is designed to target the local infections in the large intestine, where it delivers most of the incorporated drug thanks to its pH-sensitive behavior. The composite has been conceived to avoid the use of coating technology and to decrease the side-effects commonly associated to the burst-release of the ciprofloxacin at the stomach level...
2017: PloS One
https://www.readbyqxmd.com/read/29147962/retrospective-review-of-ceftriaxone-versus-levofloxacin-for-treatment-of-e-coli-urinary-tract-infections
#9
Samantha S Wang, Patrick D Ratliff, William R Judd
Background Urinary tract infections (UTIs) are among the most common bacterial infections. Options for initial treatment of pyelonephritis or UTI requiring hospitalization include levofloxacin (LVF) or extended-spectrum cephalosporins. Globally, uropathogenic Escherichia coli resistance rates to fluoroquinolones have increased in recent years. Objective To compare clinical outcomes of patients receiving ceftriaxone (CTX) to those who received LVF empirically for the treatment of E. coli UTI. Setting 433-bed community hospital in Lexington, KY...
November 17, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29147057/lessons-learnt-during-20-years-of-the-swedish-strategic-programme-against-antibiotic-resistance
#10
Sigvard Mölstad, Sonja Löfmark, Karin Carlin, Mats Erntell, Olov Aspevall, Lars Blad, Håkan Hanberger, Katarina Hedin, Jenny Hellman, Christer Norman, Gunilla Skoog, Cecilia Stålsby-Lundborg, Karin Tegmark Wisell, Christina Åhrén, Otto Cars
Increasing use of antibiotics and rising levels of bacterial resistance to antibiotics are a challenge to global health and development. Successful initiatives for containing the problem need to be communicated and disseminated. In Sweden, a rapid spread of resistant pneumococci in the southern part of the country triggered the formation of the Swedish strategic programme against antibiotic resistance, also known as Strama, in 1995. The creation of the programme was an important starting point for long-term coordinated efforts to tackle antibiotic resistance in the country...
November 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/29146620/diagnosing-infection-in-a-neonate-using-whole-body-screening-magnetic-resonance-imaging
#11
Ting Ting Fu, Paul S Kingma
The location of invasive infections is difficult to detect in infants, in part due to their inability to localize signs and symptoms. However, identifying the location often significantly alters clinical management by extending the duration of antibiotic therapy or revealing a source requiring surgical intervention. Compared with commonly used first-line imaging techniques such as radiographs and ultrasounds, MRI has higher sensitivity for identifying invasive infections and allows for simultaneous evaluation of multiple foci...
November 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/29146255/haemophilus-parasuis-cpxra-two-component-system-confers-bacterial-tolerance-to-environmental-stresses-and-macrolide-resistance
#12
Qi Cao, Fenfen Feng, Huan Wang, Xiaojuan Xu, Huanchun Chen, Xuwang Cai, Xiangru Wang
Haemophilus parasuis is an opportunistic pathogen localized in the upper respiratory tracts of pigs, its infection begins from bacterial survival under complex conditions, like hyperosmosis, oxidative stress, phagocytosis, and sometimes antibiotics as well. The two-component signal transduction (TCST) system serves as a common stimulus-response mechanism that allows microbes to sense and respond to diverse environmental conditions via a series of phosphorylation reactions. In this study, we investigated the role of TCST system CpxRA in H...
January 2018: Microbiological Research
https://www.readbyqxmd.com/read/29145857/treatment-of-charcot-neuroarthropathy-and-osteomyelitis-of-the-same-foot-a-retrospective-cohort-study
#13
Martin Berli, Lazaros Vlachopoulos, Sabra Leupi, Thomas Böni, Charlotte Baltin
BACKGROUND: We evaluated treatment of osteomyelitis in the foot in the presence of Charcot neuroarthropathy, a devastating condition with progressive degeneration and joint destruction. We hypothesized that there was a difference in (1) amputation rate, (2) amputation level, (3) duration of antibiotic therapy, and (4) duration of immobilization for treatment of osteomyelitis within versus outside the Charcot zone. METHODS: Forty patients (43 ft) diagnosed with Charcot neuroarthropathy and osteomyelitis of the same foot were retrospectively analyzed...
November 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29141546/current-theories-and-clinical-trial-evidence-for-limiting-human-abdominal-aortic-aneurysm-growth
#14
Jing Yu, Shuai Liu, Jianhua Huang, Wei Wang
BACKGROUND: Abdominal aortic aneurysm (AAA) refers to localized dilation of abdominal aorta. AAA is largely asymptomatic, but aneurysmal rupture results in a high mortality rate. AAA with a diameter greater than 55 mm carries a high risk of rupture. There are currently no known medical treatments effective in limiting the growth of small AAA. OBJECTIVE: To review the current status of and challenges faced in limiting AAA growth. METHODS: Data from human investigations and animal model studies were summarized...
November 12, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29141102/statistically-optimized-ceftriaxone-sodium-biotransformation-through-achromobacter-xylosoxidans-strain-cef6-an-unusual-insight-for-bioremediation
#15
Ahmed Anan, Khaled M Ghanem, Amira M Embaby, Ahmed Hussein, Moustafa Y El-Naggar
The present study underlines a unique promising approach toward efficient biotransformation of ceftriaxone sodium (Ceftx), a highly frequent prescribed cephalosporin antibiotic, by a newly bacterium namely Achromobacter xylosoxidans strain Cef6 isolated from Ceftx contaminated raw materials in pharmaceutical industries. A three step sequential statistical-mathematical approach (Plackett-Burman design [PBD], Central Composite Design [CCD], and ridge-canonical analyses) was anticipated to optimize the biotransformation process...
November 15, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/29139091/pharmacological-approach-to-the-management-of-crohn-s-disease-patients-with-perianal-disease
#16
REVIEW
Fernando Bermejo, Iván Guerra, Alicia Algaba, Antonio López-Sanromán
Perianal localization of Crohn's disease involves significant morbidity, affects quality of life and results in an increased use of healthcare resources. Medical and surgical therapies contribute to its management. The objective of this review is to address the current understanding in the management of perianal Crohn's disease, with the main focus in reviewing pharmacological therapies, including stem cells. In complex fistulas, once local sepsis has been controlled by surgical drainage and/or antibiotics, anti-TNF drugs (infliximab, adalimumab) are the first-line therapy, with or without associated immunomodulators...
November 14, 2017: Drugs
https://www.readbyqxmd.com/read/29138665/-epidemiological-profile-of-uropathogenic-enterobacteria-producing-extended-spectrum-beta-lactamases
#17
Mohammed Sbiti, Khalid Lahmadi, Lhoussaine Louzi
Urinary tract infections due to enterobacteria producing extended spectrum beta-lactamases (ESBL-E) constitute a infectious risk, a major therapeutic challenge and can even lead, in some cases, to a deadlock beacuse of their multi-resistance to antibiotics. This study aimed to determine the epidemiological profile of uropathogenic ESBL-E and to describe their current level of resistance to antibiotics for a better patient management according to local data. We conducted a retrospective study of all ESBL-E strains isolated from all cytobacteriogical testing of urine (CBEU) treated in the Microbiology Laboratory at the Military Hospital of Moulay Ismail, Meknes over a period of three years (from 1 January 2013 to 31 December 2015)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29137206/ancient-food-habits-dictate-that-food-can-be-medicine-but-medicine-cannot-be-food
#18
Hit Kishore Goswami, Hitendra Kumar Ram
Background: Extensive surveys of several population settlements in different parts of India-covering plains, mountains, valleys, river banks and deeper areas of forests at different altitudes-between 1968 and 2016 demonstrated that the basic vital need of hunger is being fulfilled since antiquity by plants in the wild. Methods: Based on collections, consultations with local population personnel and literature searches, this paper presents many plants that are commonly used as food and focuses on their products, which are rich in alkaloids, polysaccharides, steroids, terpenoids, flavonoids, aminoacids, fatty acids and antibiotics etc...
November 13, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29136646/the-effect-of-interventions-aiming-to-optimise-the-prescription-of-antibiotics-in-dental-care-a-systematic-review
#19
Christin Löffler, Femke Böhmer
BACKGROUND: Abundant evidence in dentistry suggests that antibiotics are prescribed despite the existence of guidelines aiming to reduce the development of antibiotic resistance. This review investigated (1) which type of interventions aiming to optimise prescription of antibiotics exist in dentistry, (2) the effect of these interventions and (3) the specific strengths and limitations of the studies reporting on these interventions. METHOD: Literature search was based on Medline, Embase, Global Health, Cochrane CENTRAL, ClinicalTrials...
2017: PloS One
https://www.readbyqxmd.com/read/29134323/single-stage-treatment-of-infected-tibial-non-unions-and-osteomyelitis-with-bone-marrow-granulocytes-precursors-protecting-bone-graft
#20
Philippe Hernigou, Arnaud Dubory, Yasuhiro Homma, Charles Henri Flouzat Lachaniette, Nathalie Chevallier, Helene Rouard
PURPOSE: Infected non-unions present a clinical challenge, especially with risk of recurrent infection. Bone marrow contains granulocyte precursors identified in vitro as colony forming units-granulocyte macrophage (CFU-GM) have a prophylactic action against infection. We therefore tested the hypothesis that bone marrow concentrated granulocytes precursors added to a standard bone graft could decrease the risk of recurrence of infection when single-stage treatment of infected tibial non-unions is performed with bone graft...
November 13, 2017: International Orthopaedics
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