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Optimizing antibiotic

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https://www.readbyqxmd.com/read/28449156/development-of-multiple-unit-floating-drug-delivery-system-of-clarithromycin-formulation-in-vitro-dissolution-by-modified-dissolution-apparatus-in-vivo-radiographic-studies-in-human-volunteers
#1
Arun B Reddy, Narendar D Reddy
Clarithromycin (CM), a broad spectrum macrolide antibiotic used to eradicate H. pylori in peptic ulcer. Clarithromycin (CM) is well absorbed from the gastrointestinal tract, but has a bioavailability of 50% due to rapid biodegradation. The aim of this investigation was to increase the gastric residence time, and to control the drug release of clarithromycin by formulating into multiple unit floating mini-tablets. Floating tablets were prepared by using direct compression method with HPMC K4M and Polyox WSR 1105 as release retarded polymers and sodium bicarbonate as gas generating agent...
April 27, 2017: Drug Research
https://www.readbyqxmd.com/read/28447330/seawater-drowning-associated-pneumonia-a-10-year-descriptive-cohort-in-intensive-care-unit
#2
Alexandre Robert, Pierre-Éric Danin, Hervé Quintard, Nicolas Degand, Nihal Martis, Denis Doyen, Céline Pulcini, Raymond Ruimy, Carole Ichai, Gilles Bernardin, Jean Dellamonica
BACKGROUND: Pneumonia is one of the major complications of drowning, but the optimal empirical antibiotic treatment is not clearly defined. Multidrug-resistant (MDR) bacteria and fungi have been identified in a recent series of freshwater drowning-associated pneumonia. However, microbial data in seawater drowning are scarce. The objective of the study is to describe the microorganisms isolated in early respiratory specimens obtained from seawater drowning-associated pneumonia and to provide their antibiotic susceptibility pattern...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28447322/successful-hepatectomy-for-hepatic-abscess-with-chronic-granulomatous-disease-a-case-report
#3
Ryo Muranushi, Makoto Suzuki, Kenichiro Araki, Norio Kubo, Sayaka Otake, Yutaka Nishida, Takashi Ishige, Hirokazu Arakawa, Hiroyuki Kuwano, Ken Shirabe
BACKGROUND: Chronic granulomatous disease (CGD), a rare inherited disorder, is characterized by impaired ability of phagocytic cells to kill certain bacteria and fungi. Although liver abscess is a common manifestation of CGD, its optimal management in these patients is unknown. Here, we present a case of successful hepatectomy for hepatic abscess in a patient with CGD. CASE PRESENTATION: An adolescent patient with previously diagnosed CGD presented to the pediatrics department of our institution with fever...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28447030/screening-and-optimizing-antimicrobial-peptides-by-using-spot-synthesis
#4
REVIEW
Paula M López-Pérez, Elizabeth Grimsey, Luc Bourne, Ralf Mikut, Kai Hilpert
Peptide arrays on cellulose are a powerful tool to investigate peptide interactions with a number of different molecules, for examples antibodies, receptors or enzymes. Such peptide arrays can also be used to study interactions with whole cells. In this review, we focus on the interaction of small antimicrobial peptides with bacteria. Antimicrobial peptides (AMPs) can kill multidrug-resistant (MDR) human pathogenic bacteria and therefore could be next generation antibiotics targeting MDR bacteria. We describe the screen and the result of different optimization strategies of peptides cleaved from the membrane...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28442139/intraoperative-ultrasound-assisted-approach-for-endoscopic-treatment-of-vesicoureteral-reflux-in-children
#5
Elisa Zambaiti, Maria Sergio, Alessandra Casuccio, Sergio Salerno, Marcello Cimador
PURPOSE: Despite minimal invasiveness and high success rate, guidelines still prescribe voiding Cystourethrogram (VCUG) after endoscopic treatment for vesicoureteral reflux (VUR) in children. The aim of this paper was to analyze whether intraoperative ultrasound (IO-US) could improve surgical accuracy and perioperative counseling, thus potentially decreasing the need for postoperative VCUG. METHODS: We selected children treated for moderate to high grade VUR, renal scarring or repeated infections under antibiotic prophylaxis from January to December 2015...
April 18, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28441360/erythromycin-modification-that-improves-its-acidic-stability-while-optimizing-it-for-local-drug-delivery
#6
Erika L Cyphert, Jaqueline D Wallat, Jonathan K Pokorski, Horst A von Recum
The antibiotic erythromycin has limited efficacy and bioavailability due to its instability and conversion under acidic conditions via an intramolecular dehydration reaction. To improve the stability of erythromycin, several analogs have been developed-such as azithromycin and clarithromycin-which decrease the rate of intramolecular dehydration. We set out to build upon this prior work by developing a conjugate of erythromycin with improved pH stability, bioavailability, and preferential release from a drug delivery system directly at the low pH of an infection site...
April 25, 2017: Antibiotics
https://www.readbyqxmd.com/read/28436019/antibiotic-therapy-for-pelvic-inflammatory-disease
#7
REVIEW
Ricardo F Savaris, Daniele G Fuhrich, Rui V Duarte, Sebastian Franik, Jonathan Ross
BACKGROUND: Pelvic inflammatory disease (PID) is an infection that affects 4% to 12% of young women, and is one of the most common causes of morbidity in this age group. The main intervention for acute PID is the use of broad-spectrum antibiotics which cover Chlamydia trachomatis, Neisseria gonorrhoeae, and anaerobic bacteria, administered intravenously, intramuscularly, or orally. In this review, we assessed the optimal treatment regimen for PID. OBJECTIVES: To assess the effectiveness and safety of antibiotic regimens used to treat pelvic inflammatory disease...
April 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28435554/influence-of-soluble-fillers-in-improving-porosity-of-handmade-antibiotic-impregnated-polymethyl-methacrylate-pmma-beads-an-in-vitro-study
#8
H N Rasyid, S Soegijoko
There have been many investigations on non-biodegradable materials acting as an antibiotic carrier for local drug delivery systems based on polymethyl methacrylate (PMMA) beads. However, the material is non-degradable and non-porous so that less than 5% of the encapsulated drug is released. In order to obtain better release of the antibiotics, greater porosity of the beads would be required. Adding fillers could increase the bead's porosity, thus improving the antibiotic release from the beads. The purpose of the study is to optimize release kinetics of gentamicin from handmade beads by adding fillers such as glycine and sodium chloride in different concentrations...
July 2016: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435118/transoral-intracranial-injury-via-middle-skull-base-by-a-blunt-chopstick-in-a-child
#9
Thiti Samuthrat, Ke Ye, Ying Tong
BACKGROUND: Transoral penetrating injury from a blunt-tipped chopstick is unusual and should be promptly dealt with since it is associated with high morbidity and mortality. CASE DESCRIPTION: We report a peculiar case of a 2-year-old girl who suffered from a transoral penetrating brain injury after falling onto a bamboo chopstick, which penetrated through the hard palate and eventually led to middle skull base fracture as well as temporal lobe laceration and contusion...
April 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28431170/early-total-enteral-feeding-in-stable-very-low-birth-weight-infants-a-before-and-after-study
#10
Sushma Nangia, Amit Bishnoi, Ankita Goel, Piali Mandal, Soumya Tiwari, Arvind Saili
Background: Fear of necrotizing enterocolitis (NEC) has perpetuated delayed initiation and slow advancement of enteral feeding in very low birth weight (VLBW) infants with inherent risks of parenteral alimentation. The objective of this study was to assess effect of early total enteral feeding (ETEF) on day of achievement of full enteral feeds, feed intolerance, NEC and sepsis. Methods: In total, 208 stable VLBW neonates (28-34 weeks) admitted during 6 month periods of three consecutive years were enrolled...
April 18, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28428012/-retrospective-study-of-children-referred-from-paediatric-intensive-care-to-palliative-care-why-and-for-what
#11
Alberto García-Salido, Paula Santos-Herranz, Verónica Puertas-Martín, María Ángeles García-Teresa, Ricardo Martino-Alba, Ana Serrano-González
INTRODUCTION: The creation of paediatric palliative care units (PPCU) could optimise the management of children with palliative focus after admission to a paediatric intensive care unit (PICU). This study describes the clinical and epidemiological characteristics of children referred from PICU to the UCPP of the Autonomous Community of Madrid (CAM). The overall treatment, relapses, re-admissions, and deaths, if occurred, are described. PATIENTS AND METHOD: A retrospective review was performed using the medical records from children transferred from the CAM paediatric intensive care units to the paediatric palliative care unit (1 March 2008-31 January 2015)...
April 17, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28427828/a-combined-clostridium-perfringens-trueperella-pyogenes-inactivated-vaccine-induces-complete-immunoprotection-in-a-mouse-model
#12
Wenlong Zhang, Pu Wang, Bing Wang, Bo Ma, Junwei Wang
Clostridium perfringens (C. perfringens) and Trueperella pyogenes (T. pyogenes) are two bacterial pathogens frequently associated with wound infections and following lethal complications in livestock. However, prudent use of antimicrobial agents is highly required given the emergence of multidrug-resistant strains of both bacteria and need for food safety. In the current study, a combined vaccine, composed of inactivated C. perfringens and T. pyogenes, was prepared. The amount of formaldehyde being used to inactivate two bacteria was optimized to retain the immunogenicity of antigens...
April 17, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28427639/synergistic-degradation-of-antibiotic-norfloxacin-in-a-novel-heterogeneous-sonochemical-fe-0-tetraphosphate-fenton-like-system
#13
Tao Zhou, Xiaoli Zou, Xiaohui Wu, Juan Mao, Jia Wang
In this study, synergistic degradation of antibiotic norfloxacin (NOR) was obtained in a novel sonochemical ultrasound/zero-valent iron/tetraphosphate system (US/ZVI/TPP). Compared to three common organic ligands (EDTA, EDDS, and DTPA), TPP could perform more excellently in activation of O2 to produce reactive oxidative species (ROS) and lead to efficient Fenton-like oxidative degradation of NOR in the sonochemical in situ chemical oxidation (ISCO) system. An optimized initial condition was obtained as 10mg/L NOR, 0...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28425828/compliance-to-guidelines-for-the-prescribing-of-antibiotics-in-acute-infections-at-namibia-s-national-referral-hospital-a-pilot-study-and-the-implications
#14
S Nakwatumbah, D Kibuule, B Godman, V Haakuria, F Kalemeera, A Baker, M Mwangana
BACKGROUND: Sub-optimal antibiotic prescribing remains a public health concern in Namibia. The objective is to determine the level and predictors of compliance to guidelines in the prescribing of antibiotics in acute infections at a national referral hospital in Namibia to improve future prescribing. METHODS: Descriptive observational cross-sectional study. The clinical records of patients receiving care were reviewed. Prescribing practices were assessed using a self- administered questionnaire with reference to Namibia Standard Treatment Guidelines (NSTG)...
April 20, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28423849/design-of-a-visual-interface-for-comparing-antibiotics-using-rainbow-boxes
#15
Rosy Tsopra, Shérazade Kinouani, Alain Venot, Marie-Christine Jaulent, Catherine Duclos, Jean-Baptiste Lamy
Non-optimal prescriptions of antibiotics have a negative impact on patients and population. Clinical practice guidelines are not always followed by doctors because the rationale of the recommendations is not always clear and can be difficult to understand. In this paper, we propose a new approach consisting in presenting the properties of antibiotics for allowing doctors to compare them and choose the most appropriate one. For that, we used and extended rainbow boxes, a new technique for overlapping set visualization...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28421569/two-step-procedure-for-complicated-appendicitis-with-perityphlitic-abscess-formation
#16
Almir Miftaroski, Ulf Kessler, Etienne Monnard, Bernhard Egger
PRINCIPLES: Optimal management of perforated appendicitis with perityphlitic phlegmon or abscess formation is controversial. The aim of the study was to assess the outcome after a two-step procedure to treat patients with perityphlitic abscess formation. METHODS: We retrospectively assessed prospectively collected data from a single-centre database that included adult patients who had appendicitis and perityphlitic abscess (>=3 cm) but no generalised peritonitis, and were treated in 2007-2015...
April 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28419033/oral-only-linezolid-rifampin-is-highly-effective-compared-with-other-antibiotics-for-periprosthetic-joint-infection-study-of-a-mouse-model
#17
John M Thompson, Vikram Saini, Alyssa G Ashbaugh, Robert J Miller, Alvaro A Ordonez, Roger V Ortines, Yu Wang, Robert S Sterling, Sanjay K Jain, Lloyd S Miller
BACKGROUND: The medical treatment of periprosthetic joint infection (PJI) involves prolonged systemic antibiotic courses, often with suboptimal clinical outcomes including increased morbidity and health-care costs. Oral and intravenous monotherapies and combination antibiotic regimens were evaluated in a mouse model of methicillin-resistant Staphylococcus aureus (MRSA) PJI. METHODS: Oral linezolid with or without oral rifampin, intravenous vancomycin with oral rifampin, intravenous daptomycin or ceftaroline with or without oral rifampin, oral doxycycline, or sham treatment were administered at human-exposure doses for 6 weeks in a mouse model of PJI...
April 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28416382/isolation-pathogenicity-and-characterization-of-a-novel-bacterial-pathogen-streptococcus-uberis-from-diseased-mandarin-fish-siniperca-chuatsi
#18
Xia Luo, Xiaozhe Fu, Guoli Liao, Ouqin Chang, Zhibin Huang, Ningqiu Li
In recent years, mandarin fish had a high mortality rate associated with abnormal swimming, exophthalmia, corneal opacity and eye hemorrhage on a fish farm located at Foshan city, Guangdong province, China. Three isolates of Gram-positive, chain-forming cocci were recovered from moribund fish, and designated as SS131025-1, SS131025-2, and SS131025-3. These isolates were identified as Streptococcus uberis according to their morphologic and physio-biochemical characteristics as well as phylogenetic analysis based on their 16S rRNA and GapC gene sequences...
April 14, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28414702/minimally-invasive-treatment-for-appendiceal-mass-formed-after-acute-perforated-appendicitis
#19
Enver Zerem, Suad Kunosić, Almin Handanagić, Dženan Jahić, Dina Zerem, Omar Zerem
The optimal treatment for appendiceal mass formed after appendiceal rupture due to acute appendicitis is surrounded with controversy. The treatment strategy ranges from open surgery (emergency or interval appendectomy), laparoscopic appendectomy, and image-guided drainage, to conservative treatment with or without antibiotics. Nonsurgical treatment (including conservative and drainage treatment), followed by interval appendectomy to prevent recurrence, is the traditional management of these patients. The need for interval appendectomy after a successful conservative or/and image-guided drainage treatment, has recently been questioned as the risk of recurrence is relatively small...
April 14, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28412382/use-of-nebulized-antimicrobials-for-the-treatment-of-respiratory-infections-in-invasively-mechanically-ventilated-adults-a-position-paper-from-the-european-society-of-clinical-microbiology-and-infectious-diseases
#20
Jordi Rello, Candela Solé-Lleonart, Jean-Jacques Rouby, Jean Chastre, Stijn Blot, Garyfallia Poulakou, Charles-Edouard Luyt, Jordi Riera, Lucy B Palmer, Jose M Pereira, Tim Felton, Jayesh Dhanani, Matteo Bassetti, Tobias Welte, Jason A Roberts
With an established role in cystic fibrosis and bronchiectasis, nebulized antibiotics are increasingly being used to treat respiratory infections in critically ill invasively mechanically ventilated adult patients. Although there is limited evidence describing their efficacy and safety, in an era of need for new strategies to enhance antibiotic effectiveness because of a shortage of new agents and increases in antibiotic resistance, the potential of nebulization of antibiotics to optimize therapy is considered of high interest, particularly in patients infected with multidrug-resistant (MDR) pathogens...
April 13, 2017: Clinical Microbiology and Infection
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