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https://www.readbyqxmd.com/read/29352609/induction-of-mitophagy-in-the-hei-oc1-auditory-cell-line-and-activation-of-the-atg12-lc3-pathway-in-the-organ-of-corti
#1
Cristian Setz, Anne-Sophie Benischke, Anna Catharina Pinho Ferreira Bento, Yves Brand, Soledad Levano, Franziska Paech, Katharina Leitmeyer, Daniel Bodmer
Autophagy is a highly evolutionary conserved quality control defense mechanism within cells, which has also been implicated in cell death processes. In the mammalian inner ear, autophagy has been shown to play a role during early morphogenesis as well as in adult cochlear hair cells exposed to ototoxic insults. Mitophagy, a selective autophagic cell process targeting mitochondria, hasn't been studied in the inner ear so far. On this work, we searched for molecular indicators of mitophagy within House Ear Institute-Organ of Corti-1 (HEI-OC1) cells as well as in the organ of Corti (OC)...
January 11, 2018: Hearing Research
https://www.readbyqxmd.com/read/29349897/antibiogram-and-genetic-diversity-of-salmonella-enterica-with-zoonotic-potential-isolated-from-morbid-native-chickens-and-pigeons-in-egypt
#2
E Abdeen, W Elmonir, I I A Suelam, W S Mousa
AIMS: This study investigated the possible role of Fayoumi chickens and pigeons in the transmission of multidrug resistant (MDR) Salmonella with zoonotic potential. METHODS AND RESULTS: Morbid Fayoumi chickens (70) and pigeons (30) were examined to detect the prevalence and antibiotic resistance of Salmonella and to detect and sequence sodC-1 gene as a zoonotic and phylogenetic marker. Salmonella isolates were detected in 14.3% and 20% of the examined Fayoumi chickens and pigeons, respectively...
January 19, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29348522/in-vitro-and-in-vivo-antimicrobial-activity-of-ts2037-a-novel-aminoglycoside-antibiotic
#3
Yoko Hirai, Kazunori Maebashi, Hideki Fushimi, Yukiko Hiraiwa, Shoichi Murakami, Takayuki Usui, Yoshihisa Akiyama, Nobuto Minowa, Daishiro Ikeda
To overcome serious methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa infections, we synthesized TS2037, 5,4″-diepi-arbekacin, a novel aminoglycoside antibiotic, and evaluated its biological properties. TS2037 showed broad-range, as well as robust antibacterial activities against Gram-positive and Gram-negative bacteria. The MIC50 and MIC90 of TS2037 against clinical isolates of MRSA (n = 54) were both 0.25 µg/mL, and no resistant strain was observed. The MIC50 and MIC90 of TS2037 against clinical isolates of P...
January 18, 2018: Journal of Antibiotics
https://www.readbyqxmd.com/read/29348082/nephrotoxic-effects-of-valeriana-wallichii
#4
Naveed Ullah, Mir Azam Khan, Abdur Rauf, Taous Khan, Ghulam Murtaza, Salimullah Khan, Ismail Shah
Aminoglycosides are the commonly used antibiotics against Gram negative bacteria. Their clinical applications are limited due to nephrotoxic side effects. Therefore, the current study was undertaken in an attempt to increase the use of these drugs without causing nephrotoxicity by exploring the nephroprotective effects of a medicinal plant with high flavonoid contents and strong antioxidant properties, namely Valeriana wallichii. A daily dose of 200mg/kg of the extract derived from V. wallichii was employed for a period of three weeks...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29341028/ameliorative-effects-of-zataria-multiflora-hydro-alcoholic-extract-on-gentamicin-induced-nephrotoxicity-in-rats
#5
Saeed Hajihashemi, Tahereh Jafarian, Mahboubeh Ahmadi, Ali Rahbari, Fatemeh Ghanbari
BACKGROUND: Nephrotoxicity is the major side effects of aminoglycoside antibiotics such as gentamicin. The aim of this study was to investigate the therapeutic effects of Z.multiflora (ZM) hydroalcoholic extract on gentamicin-induced nephrotoxicity. METHODS: Twenty-eight male Wistar rats categorized into four groups: 1) the control group without injection, 2) the gentamicin treated group (100 mg/kg, i.p) 3) the gentamicin and Z. Multiflora treated group; Z. Multiflora extract(0...
January 16, 2018: Drug Research
https://www.readbyqxmd.com/read/29340851/comparison-of-antibiotic-dosing-recommendations-for-neonatal-sepsis-from-established-reference-sources
#6
T B Y Liem, E M A Slob, J U M Termote, T F W Wolfs, A C G Egberts, C M A Rademaker
Background Incorrect dosing is the most frequent prescribing error in neonatology, with antibiotics being the most frequently prescribed medicines. Computer physician order entry and clinical decision support systems can create consistency contributing to a reduction of medication errors. Although evidence-based dosing recommendations should be included in such systems, the evidence is not always available and subsequently, dosing recommendations mentioned in guidelines and textbooks are often based on expert opinion...
January 16, 2018: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29339961/skew-deviation-and-partial-ocular-tilt-reaction-due-to-intratympanic-gentamicin-injection-with-review-of-the-literature
#7
Samuel M Dresner, Nathan H Kung, Joel R Palko, Jonathan L McJunkin, Joel A Goebel, Gregory P Van Stavern
Skew deviation is a rare side effect of intratympanic gentamicin injection for intractable Meniere's disease. When the skew deviation is accompanied by pathologic head tilt and ocular torsion, the result is an ocular tilt reaction (OTR). The authors report the case of a 56-year-old man with refractory Meniere's disease who developed binocular vertical diplopia following intratympanic gentamicin injection and was found to have skew deviation and a partial ocular tilt reaction. The authors also review the reported cases of skew deviation following intratympanic gentamicin and confirm this phenomenon, which has only rarely been reported in the literature...
October 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29339383/new-shuttle-vectors-for-gene-cloning-and-expression-in-multidrug-resistant-acinetobacter-species
#8
Massimiliano Lucidi, Federica Runci, Giordano Rampioni, Emanuela Frangipani, Livia Leoni, Paolo Visca
Understanding bacterial pathogenesis requires adequate genetic tools to assess the role of individual virulence determinants by mutagenesis and complementation assays, as well as for homologous and heterologous expression of cloned genes. Our knowledge of Acinetobacter baumannii pathogenesis has so far been limited by the scarcity of genetic tools to manipulate multi drug resistant (MDR) epidemic strains which are responsible for most of infections. Here, we report the construction of new multi-purpose shuttle plasmids, namely pVRL1 and pVRL2, which can efficiently replicate in Acinetobacter sp...
January 16, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29338942/international-consensus-icon-on-treatment-of-m%C3%A3-ni%C3%A3-re-s-disease
#9
J Nevoux, M Barbara, J Dornhoffer, W Gibson, T Kitahara, V Darrouzet
OBJECTIVE: To present the international consensus for recommendations for Ménière's disease (MD) treatment. METHODS: Based on a literature review and report of 4 experts from 4 continents, the recommendations have been presented during the 21st IFOS congress in Paris, in June 2017 and are presented in this work. RESULTS: The recommendation is to change the lifestyle, to use the vestibular rehabilitation in the intercritic period and to propose psychotherapy...
January 12, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29338693/in-vitro-antimicrobial-susceptibility-testing-of-human-brucella-melitensis-isolates-from-ulanqab-of-inner-mongolia-china
#10
Zhi-Guo Liu, Dong-Dong Di, Miao Wang, Ri-Hong Liu, Hong-Yan Zhao, Dong-Ri Piao, Zhong-Zhi Zhao, Yong-Qing Hao, Ya-Nan Du, Hai Jiang, Bu-Yun Cui, Xian-Zhu Xia
BACKGROUND: Brucellosis is an endemic disease in the Inner Mongolia Autonomous Region of China and Ulanqab exhibits the highest prevalence of brucellosis in this region. Due to the complex nature of Brucellosis, a cure for this disease has proven to be elusive. Furthermore, the reduced susceptibility of Brucella spp. to antimicrobial agents has been reported as a potential cause of therapeutic failure. However, detailed in vitro antimicrobial susceptibility patterns pertaining to Brucella isolates from this region have not yet been published...
January 16, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29337066/listeria-monocytogenes-endocarditis-case-report-review-of-the-literature-and-laboratory-evaluation-of-potential-novel-antibiotic-synergies
#11
Monika Kumaraswamy, Carter Do, George Sakoulas, Poochit Nonejuie, Guan Woei Tseng, Helen King, Joshua Fierer, Joe Pogliano, Victor Nizet
Endocarditis is a rare but serious manifestation of Listeria monocytogenes (LM). However, the optimal treatment strategy for LM endocarditis has yet to be established. Current antibiotic strategies for listeriosis include penicillin G or ampicillin (AMP) monotherapy, or AMP + gentamicin combination therapy which is often favored for endocarditis. The primary objective of our investigation was to assess the utility of AMP + ceftriaxone (CRO) and AMP + daptomycin (DAP) against LM, modeling less nephrotoxic antibiotic combinations traditionally used to manage resistant enterococcal endocarditis...
January 11, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29333818/community-acquired-methicillin-resistant-staphylococcus-aureus-infections-hospitalization-and-case-fatality-risk-in-10-pediatric-facilities-in-argentina
#12
Ángela Gentile, Julia Bakir, Gabriela Ensinck, Aldo Cancellara, Enrique V Casanueva, Verónica Firpo, Martín Caruso, María F Lución, Alejandro Santillán Iturres, Fabiana Molina, Héctor J Abate, Andrea Gajo Gane, Santiago López Papucci
INTRODUCTION: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are prevalent both in Argentina and worldwide, and they may have a severe clinical course. OBJECTIVES: To estimate the hospitalization rate and case fatality risk factors of CA-MRSA infection. METHODS: Cross-sectional, analytical study. All patients < 15 years old with community-acquired Staphylococcus aureus (CA-SA) infections admitted to 10 pediatric facilities between January 2012 and December 2014 were included...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333608/the-synergistic-effect-of-pdt-and-oxacillin-on-clinical-isolates-of-staphylococcus-aureus
#13
Natanel Iluz, Yasmin Maor, Natan Keller, Zvi Malik
BACKGROUND: Staphylococcus aureus is a major pathogen in clinical microbiology. It is known to cause infections at various body sites and can be life-threatening. The development of resistance to many well-established antibiotic treatments and the prevalence of methicillin-resistant S. aureus (MRAS) among hospital patients and the general community pose challenges in treating the pathogen. The antimicrobial effect of photodynamic therapy (PDT) has been a subject of study for a long time and can offer new strategies for dealing with resistant strains...
January 15, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29330026/sound-shock-response-in-larval-zebrafish-a-convenient-and-high-throughput-assessment-of-auditory-function
#14
Xiuyun Liu, Jia Lin, Yinglan Zhang, Ning Guo, Qiang Li
Given that hearing ability can be challenged in diverse ways, it is necessary to develop an easily conducted, high-throughput method for assessing potential auditory risks. Measuring the acoustic startle response (ASR) has become a critical behavioral method in hearing research using zebrafish (Danio rerio). In this study, changes in the activity of zebrafish larvae (10 days post fertilization (dpf)) due to exposure to a sudden easily-generated broad-band noise were automatically and objectively recorded and analyzed without building sophisticated equipments...
January 9, 2018: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/29329806/effect-of-different-animal-fat-and-plant-oil-additives-on-physicochemical-mechanical-antimicrobial-and-antioxidant-properties-of-chitosan-films
#15
Lalehan Akyuz, Murat Kaya, Sedef Ilk, Yavuz Selim Cakmak, Asier M Salaberria, Jalel Labidi, Bahar Akyuz Yılmaz, Idris Sargin
Practical application of chitosan-essential oil blend films is limited due to the uneconomical extraction procedure of essential oils from plants. This study aimed to produce chitosan films blended with low cost and commercially available oils and fats consumed in daily human diet (olive, corn and sunflower oils, butter and animal fats). The study also focused on how physicochemical, biological and mechanical properties of chitosan blend films were influenced by the incorporation of oils and fats with varying unsaturation degrees...
January 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29329577/respiratory-explants-as-a-model-to-investigate-early-events-of-contagious-bovine-pleuropneumonia-infection
#16
Giovanni Di Teodoro, Giuseppe Marruchella, Andrea Di Provvido, Gianluca Orsini, Gaetano Federico Ronchi, Anna Rita D'Angelo, Nicola D'Alterio, Flavio Sacchini, Massimo Scacchia
Contagious bovine pleuropneumonia (CBPP) is a severe disease caused by Mycoplasma mycoides subsp. mycoides (Mmm). Knowledge on CBPP pathogenesis is fragmented and hampered by the limited availability of laboratory animal and in vitro models of investigation. The purpose of the present study is to assess respiratory explants as useful tools to study the early stages of CBPP. Explants were obtained from trachea, bronchi and lungs of slaughtered cattle, tested negative for Mycoplasma spp. and for the major bacterial and viral respiratory pathogens...
January 12, 2018: Veterinary Research
https://www.readbyqxmd.com/read/29329209/gentamicin-sulfate-peg-plga-plga-h-nanoparticles-screening-design-and-antimicrobial-effect-evaluation-toward-clinic-bacterial-isolates
#17
Rossella Dorati, Antonella DeTrizio, Melissa Spalla, Roberta Migliavacca, Laura Pagani, Silvia Pisani, Enrica Chiesa, Bice Conti, Tiziana Modena, Ida Genta
Nanotechnology is a promising approach both for restoring or enhancing activity of old and conventional antimicrobial agents and for treating intracellular infections by providing intracellular targeting and sustained release of drug inside infected cells. The present paper introduces a formulation study of gentamicin loaded biodegradable nanoparticles (Nps). Solid-oil-in water technique was studied for gentamicin sulfate nanoencapsulation using uncapped Polylactide-co-glycolide (PLGA-H) and Polylactide-co-glycolide-co-Polyethylenglycol (PLGA-PEG) blends...
January 12, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29324629/susceptibility-of-neisseria-gonorrhoeae-to-gentamicin-gonococcal-isolate-surveillance-project-2015-2016
#18
Laura M Mann, Robert D Kirkcaldy, John R Papp, Elizabeth A Torrone
The gentamicin minimum inhibitory concentrations (MICs) of Neisseria gonorrhoeae isolates were determined. Seventy-three percent of isolates demonstrated an MIC range of 8 to 16 μg/mL, and 27% demonstrated an MIC of 4 μg/mL or less. Significant associations between gentamicin MIC and resistance or reduced susceptibility to other antimicrobials were found.
February 2018: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/29320984/prevalence-and-antibiotic-susceptibility-of-uropathogens-from-cases-of-urinary-tract-infections-uti-in-shashemene-referral-hospital-ethiopia
#19
Wubalem Desta Seifu, Alemayehu Desalegn Gebissa
BACKGROUND: Urinary tract infection (UTI) remains to be one of the most common infectious diseases diagnosed in developing countries. And a widespread use of antibiotics against uropathogens has led to the emergence of antibiotic resistant species. A laboratory based cross-sectional survey was conducted in Shashemene referral hospital to determine the prevalence and antibiotic susceptibility of uropathogens. METHODS: We have collected 384 clean catch mid-stream urine samples from all suspected UTI outpatients using sterile screw capped container...
January 10, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29319754/identification-and-antimicrobial-suceptibility-profile-of-bacteria-causing-bovine-mastitis-from-dairy-farms-in-pelotas-rio-grande-do-sul
#20
C H Freitas, J F Mendes, P V Villarreal, P R Santos, C L Gonçalves, H L Gonzales, P S Nascente
Mastitis is an inflammatory process of the udder tissue caused mainly by the bacteria Staphylococcus aureus. The indiscriminate use of antibiotics fosters conditions that favor the selection of resistant microorganisms, suppressing at the same time susceptible forms, causing a serious problem in dairy cattle. Given the importance in performing an antibiogram to select the most adequate antimicrobial therapy, the aim of this study was to identify bacteria isolated from cow's milk with mastitis, in dairy farms situated in the city of Pelotas, Rio Grande do Sul, and to determinate the susceptibility profile of these isolates against the antibiotics used to treat this illness...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
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