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https://www.readbyqxmd.com/read/29325951/shunt-nephritis-an-increasingly-unfamiliar-diagnosis
#1
Tessa A Harland, Ken R Winston, Anna J Jovanovich, Richard J Johnson
BACKGROUND: Shunt nephritis is a rare, reversible immune-complex mediated complication of CSF shunt infection that can progress to end-stage renal disease and even death if diagnosis is delayed. CASE DESCRIPTION: The present case report details the manifestation and clinical course of shunt nephritis in a 50-year old patient who presented with symptoms of nephrotic syndrome 30 years after ventriculo-jugular shunt placement. Diagnosis was delayed due to initial negative CSF and blood cultures but later a CSF culture was positive for Propionibacterium acnes...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29316866/the-first-high-frequency-of-recombination-like-conjugal-transfer-from-an-integrated-origin-of-transfer-sequence-in-bacillus-subtilis-168
#2
Mitsuhiro Itaya, Miki Hasegawa, Masaru Tomita, Mitsuru Sato
Bacillus subtilis 168 was developed as a genome vector to manipulate large DNA fragments. The system is based on the inherent natural transformation (TF) activity. However, DNA size transferred by TF is limited up to approximately 100 kb. A conjugal transfer system capable of transferring DNA fragments considerably larger than those transferred by TF was developed. A well-defined oriT110 sequence and a cognate relaxase gene from the pUB110 plasmid were inserted into the xkdE gene of the B. subtilis genome...
January 10, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29314285/modulation-of-broilers-caecal-microflora-and-metabolites-in-response-to-a-potential-probiotic-bacillus-amyloliquefaciens
#3
G T Cao, X A Zhan, L L Zhang, X F Zeng, A G Chen, C M Yang
Studies have found that a dietary supplement of Bacillus amyloliquefaciens improved the growth performance, increased the nutrient digestibility of hosts and modulated the intestinal microflora. A total of 360 1-day-old Ross broilers were randomly divided into three treatments: a control group with a basal diet, an antibiotic group with a basal diet and added colistin sulphate, and a probiotics group with a basal diet and added Bacillus amyloliquefaciens. The HiSeq high-throughput sequencing analysis of 16S rRNA was used to investigate the differences in birds' caecal microflora, and metabolomics was used to analyse changes in caecal metabolites...
January 3, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29311273/translocation-through-the-conjugative-type-4-secretion-system-requires-unfolding-of-its-protein-substrate
#4
Martina Trokter, Gabriel Waksman
Bacterial conjugation, a mechanism of horizontal gene transfer, is the major means by which antibiotic resistance spreads among bacteria (1, 2). Conjugative plasmids are transferred from one bacterium to another through a type IV secretion system (T4SS) in a form of single-stranded DNA covalently attached to a protein called relaxase. The relaxase is fully functional both in a donor cell (prior to conjugation) and recipient cell (after conjugation). Here we demonstrate that the protein substrate has to unfold for efficient translocation through the conjugative T4SS...
January 8, 2018: Journal of Bacteriology
https://www.readbyqxmd.com/read/29305196/periconceptional-folate-deficiency-leads-to-autism-like-traits-in-wistar-rat-offspring
#5
Stéphanie Degroote, Darel Hunting, Larissa Takser
BACKGROUND: Folates in their role as key one carbon donors, are essential for two major pathways: the synthesis of DNA and RNA precursors and DNA methylation. A growing body of evidence from epidemiological studies indicates a possible association between nutritional and functional deficiency in folates and Autism Spectrum Disorders (ASD). However, there are no available behavioral animal studies on periconceptional one‑carbon donor deficiency during gestation and the autistic phenotype...
January 2, 2018: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/29299507/outpatient-management-of-cholesteatoma-with-canal-wall-reconstruction-tympanomastoidectomy
#6
Richard Kao, Todd Wannemuehler, Charles W Yates, Rick F Nelson
Objectives: The postoperative wound infection rate for canal wall reconstruction (CWR) tympanomastoidectomy with mastoid obliteration in the treatment of chronic otitis media with cholesteatoma has been reported to be 3.6%. Postoperative administration of 24-48 hours of intravenous antibiotics has been recommended. We aim to determine the infection rate of CWR with postoperative outpatient oral antibiotics. Study Design: Institutional review board-approved retrospective case review...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29298407/a-hybrid-form-of-telemedicine-a-unique-way-to-extend-intensive-care-service-to-neonates-in-medically-underserved-areas
#7
Abhishek Makkar, Mike McCoy, Gene Hallford, Marilyn Escobedo, Edgardo Szyld
BACKGROUND: More than 90% of neonatal intensive care units (NICUs) in the United States are in urban areas, denying rural residents' easy NICU access. Telemedicine use for patient contact and management, although studied in adults and children, is understudied in neonates. A hybrid telemedicine system, with 24/7 neonatal nurse practitioner coverage and with a neonatologist physically present 3 days per week and telemedicine coverage the remaining days, was recently implemented at Comanche County Memorial Hospital's (CCMH) Level II NICU...
January 3, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29297830/successful-treatment-of-a-clinical-elephant-endotheliotropic-herpesvirus-infection-the-dynamics-of-viral-load-genotype-analysis-and-treatment-with-acyclovir
#8
Supaphen Sripiboon, Taweepoke Angkawanish, Khajohnpat Boonprasert, Petthisak Sombutputorn, Warangkhana Langkaphin, William Ditcham, Kristin Warren
This article describes the treatment of clinical elephant endotheliotropic herpesvirus (EEHV) infection in a male Asian elephant ( Elephas maximus; approximately 3 yr old), the dynamics of viral load during the active infection, and genetic analysis of the virus. Treatment included injectable acyclovir (12 mg/kg iv, bid), antibiotic, vitamin, and fluids. Quantitative polymerase chain reaction was used to measure the viral levels in blood, which decreased continuously after initiation of intravenous acyclovir...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29290748/therapeutic-drug-monitoring-of-prolonged-infusion-aztreonam-for-multi-drug-resistant-pseudomonas-aeruginosa-a-case-report
#9
Jeffrey J Cies, Richard J LaCoursiere, Wayne S Moore, Arun Chopra
Aztreonam, a broad-spectrum monobactam, is typically reserved for multidrug resistant (MDR) infections. Pharmacokinetic (PK) data to guide dosing in children, however, are limited to healthy volunteers or nonintensive care unit (ICU) patients. Impaired antibiotic delivery into tissue remains a major concern and may explain the high morbidity and mortality associated with MDR infections. Therefore, evaluating the PK changes in pediatric ICU patients is necessary to elucidate the most appropriate antimicrobial regimen...
November 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29290229/antibiotic-treatment-of-lower-respiratory-tract-infections
#10
R Cohen, F Angoulvant, S Biscardi, F Madhi, F Dubos, Y Gillet
Lower respiratory tract infections, i.e., bronchitis, bronchiolitis, and pneumonia, are the second leading cause of antibiotic prescriptions. The vast majority of these infections are due to viruses and are self-limited diseases: most patients recover spontaneously. These two facts explain that antibiotic prescriptions must be limited to some clinical situations for which the diagnosis has to be done early. The first message of this manuscript is to strengthen non-antibiotic prescriptions in many situations such as bronchitis and bronchiolitis...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29288723/intravenous-colistin-combination-antimicrobial-treatment-versus-monotherapy-a-systematic-review-and-meta-analysis
#11
REVIEW
Konstantinos Z Vardakas, Andreas D Mavroudis, Maria Georgiou, Matthew E Falagas
BACKGROUND: To evaluate whether IV colistin in combination with other antibiotics (IVCC) was associated with lower mortality compared to colistin monotherapy (IVCM) and identify factors influencing study outcomes. METHODS: PubMed and Scopus were searched till November 2016. Studies were included if they evaluated adult patients with MDR/XDR Gram-negative infections and reported comparative mortality data (adjusted and unadjusted) for patients receiving IVCC versus IVCM...
December 27, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29287806/antibiotic-susceptibility-of-259-listeria-monocytogenes-strains-isolated-from-food-food-processing-plants-and-human-samples-in-germany
#12
Matthias Noll, Sylvia Kleta, Sascha Al Dahouk
BACKGROUND: The objective of this study was to evaluate the susceptibility of 259 Listeria monocytogenes strains isolated from food and food-processing environments and patient samples in Germany to 14 antibiotics widely used in veterinary and human medicine. L. monocytogenes strains were isolated mainly from milk and milk products and classified according to their molecular serotypes IIa (n=112), IIb (n=41), IIc (n=36), IVa (n=1), IVb (n=66), and IVb-v1 (n=3). METHODS: Susceptibility tests were performed by using the automated 96-well based microdilution system Micronaut-S...
December 26, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29284155/a-retrospective-analysis-comparing-oral-stepdown-therapy-for-enterobacteriaceae-bloodstream-infections-fluoroquinolones-versus-beta-lactams
#13
Nicholas J Mercuro, Patricia Stogsdill, Minkey Wungwattana
Enterobacteriaceae bloodstream infections (EB-BSI) are a common manifestation of Gram-negative sepsis, and are initially managed with empiric intravenous (IV) antibiotics. Upon stabilization and source control, patients are often transitioned to an oral agent. The fluoroquinolone (FQ) class plays a prominent role in stepdown therapy for severe infections due to favorable pharmacokinetic parameters; however, serious adverse effects have been documented with their use. Two hundred and twenty-four adults with EB-BSI initiated on empiric IV antibiotics with stepdown to oral beta-lactam (BLM) (n= 84) or FQ (n= 140) were included to compare clinical success and identify risk factors for treatment failure...
December 25, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29280857/microbial-evaluation-in-capsular-contracture-of-breast-implants
#14
Marilena Galdiero, Fabio Larocca, Maria Rosaria Iovene, Martora Francesca, Gorizio Pieretti, Virginia D'Oriano, Gianluigi Franci, Giuseppe Ferraro, Francesco d'Andrea, Giovanni Francesco Nicoletti
BACKGROUND: Capsular contracture around breast implants is a severe and unpredictable complication experienced by up to 50 percent of patients after breast augmentation and reconstruction, and represents a major cause leading to reoperation. Several lines of evidence point to the involvement of subclinical infections and of bacterial biofilm formation. METHODS: To reduce the incidence of capsular contracture following mammaplasty, the authors studied the correlation between contamination by exogenous and endogenous bacterial flora and the capacity to develop bacterial biofilm in mammary implants...
January 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29279746/epidemiology-and-clinical-management-of-traumatic-spine-injuries-at-a-major-government-hospital-in-cambodia
#15
Jee-Hye Choi, Paul J Park, Vuthy Din, Nang Sam, Vycheth Iv, Kee B Park
Study Design: Cross sectional study. Purpose: To characterize the pattern of injury, describe the current clinical management, and determine the outcomes in traumatic spine injury (TSI) patients presenting to a major government hospital in Phnom Penh, Cambodia. Overview of Literature: There is a paucity of literature on epidemiology or current clinical practices for TSIs in Cambodia. The findings from this study can thus serve as a valuable resource for future progress in treating TSIs in low-income countries...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29278835/single-stage-treatment-of-diabetic-calcaneal-osteomyelitis-with-an-absorbable-gentamicin-loaded-calcium-sulphate-hydroxyapatite-biocomposite-the-silo-technique
#16
Efstathios Drampalos, Hasan Raza Mohammad, Chris Kosmidis, Moez Balal, Jason Wong, Anand Pillai
BACKGROUND: Chronic osteomyelitis necessities appropriate infected bone and soft tissue excision. The authors describe the Silo surgical technique for the treatment of calcaneal osteomyelitis using a new antibiotic-loaded absorbable calcium sulphate/hydroxyapatite biocomposite. METHODS: The Silo method involves debridement of the dead bone and local delivery of antibiotic in drilled tunnels using the biocomposite. It is combined with multiple sampling and culture-specific systemic antibiotic treatment guided by a multidisciplinary team...
November 23, 2017: Foot
https://www.readbyqxmd.com/read/29274860/primary-pyomyositis-in-children
#17
M M Elzohairy
BACKGROUND: Pyomyositis PM is defined as a primary pyogenic infection of the striated skeletal muscle; although it has many dystrophic musculoskeletal complications, it is always misdiagnosed by many orthopedic surgeons. HYPOTHESIS: PM is rare in temperate climates and usually considered to be a tropical disease, until recent times, after globalization, it is possible to occur in the subtropical climate as in our country. MATERIAL AND METHODS: In the present series, the results of 15 children patients with primary pyomyositis have been reviewed...
December 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29261405/evaluation-of-aminoglycoside-and-carbapenem-resistance-in-a-collection-of-drug-resistant-pseudomonas-aeruginosa-clinical-isolates
#18
Selina Y L Holbrook, Sylvie Garneau-Tsodikova
Pseudomonas aeruginosa, a Gram-negative bacterium, is a member of the ESKAPE pathogens and one of the leading causes of healthcare-associated infections worldwide. Aminoglycosides (AGs) are recognized for their efficacy against P. aeruginosa. The most common resistance mechanism against AGs is the acquisition of AG-modifying enzymes (AMEs) by the bacteria, including AG N-acetyltransferases (AACs), AG O-phosphotransferases (APHs), and AG O-nucleotidyltransferases (ANTs). In this study, we obtained 122 multidrug-resistant P...
December 20, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29250963/high-prevalence-of-staphylococcus-aureus-nasal-carriage-among-children-in-szolnok-hungary
#19
Krisztina Laub, Adrienn Tóthpál, Eszter Kovács, Judit Sahin-Tóth, Andrea Horváth, Szilvia Kardos, Orsolya Dobay
We collected nasal samples from 1,390 healthy 3-7 years old children in Szolnok city, Hungary, in 2012. We detected 476 Staphylococcus aureus isolates from 474 children. In two occasions, two different S. aureus were isolated, based on hemolysis type and pulsed-field gel electrophoresis pattern. S. aureus carriage rate was calculated to be 34.1% similar to others studies. Male gender was found to be a risk factor for carriage by statistical analysis. Altogether, four methicillin-resistant S. aureus (MRSA) strains were detected by mecA polymerase chain reaction, which means 0...
December 18, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/29247870/synthesis-and-evaluation-of-the-antibiotic-and-adjuvant-antibiotic-potential-of-organotin-iv-derivatives
#20
Ana Soraya Lima Barbosa, Jéssica de Siqueira Guedes, Douglas Rozendo da Silva, Simoni Margareti Plentz Meneghetti, Mario Roberto Meneghetti, Amanda Evelyn da Silva, Morgana Vital de Araujo, Magna Suzana Alexandre-Moreira, Thiago Mendonça de Aquino, José Pinto de Siqueira Junior, Rodrigo Santos Aquino de Araújo, Ryldene Marques Duarte da Cruz, Francisco Jaime Bezerra Mendonça-Junior
A series of organotin(IV) derivatives was investigated in vitro for their antibiotic and adjuvant antibiotic properties (efflux pump inhibitors) against Staphylococcus aureus strains that overexpress efflux pump proteins for norfloxacin (SA-1199B), erythromycin (RN-4220) and tetracycline (IS-58). Most organotin(IV) compounds showed significant antibacterial activity with small Minimum Inhibitory Concentration (MIC) values, some of which were close to 1.0μg/mL (3.1μM), but this feature was also associated with substantial cytotoxicity...
December 8, 2017: Journal of Inorganic Biochemistry
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