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https://www.readbyqxmd.com/read/28728607/zika-virus-transmission-to-mouse-ear-by-mosquito-bite-a-laboratory-model-that-replicates-the-natural-transmission-process
#1
Nagila Francinete Costa Secundino, Barbara Aparecida Chaves, Alessandra Silva Orfano, Karine Renata Dias Silveira, Nilton Barnabe Rodrigues, Thais Bonifácio Campolina, Rafael Nacif-Pimenta, Luiz Eduardo Martinez Villegas, Breno Melo Silva, Marcus Vinícius Guimarães Lacerda, Douglas Eric Norris, Paulo Filemon Paolucci Pimenta
BACKGROUND: Zika disease has transformed into a serious global health problem due to the rapid spread of the arbovirus and alarming severity including congenital complications, microcephaly and Guillain-Barré syndrome. Zika virus (ZIKV) is primarily transmitted to humans through the bite of an infective mosquito, with Aedes aegypti being the main vector. METHODS: We successfully developed a ZIKV experimental transmission model by single infectious Ae. aegypti bite to a laboratory mouse using circulating Brazilian strains of both arbovirus and vector...
July 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28727652/surgical-emphysema-following-canalplasty-for-aural-exostoses
#2
Michael C Baxter, Matthew Keller, Anil Shah, Sean Wise
OBJECTIVE: To describe the presentation and management of surgical emphysema involving the temporomandibular joint and deep neck following exostoses removal. PATIENT: A 60-year-old male surfer presented with hearing loss and recurrent infections in the right ear. An examination revealed obstructing bony exostoses in the right external auditory canal. He underwent right canalplasty using a postauricular approach. At 5 weeks after surgery, he presented with right otalgia, swelling of the right face and neck, and complaints of a squeaking noise in the right ear with mandibular excursions...
July 19, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28726587/repair-of-tympanic-membrane-perforations-with-customized-bioprinted-ear-grafts-using-chinchilla-models
#3
Che-Ying Kuo, Emmanuel Wilson, Andrew Fuson, Nidhi Gandhi, Reza Monfaredi, Audrey Jenkins, Maria Romero, Marco Santoro, John P Fisher, Kevin Cleary, Brian Reilly
The goal of this work is to develop an innovative method that combines bioprinting and endoscopic imaging to repair tympanic membrane perforations (TMPs). TMPs are a serious health issue because they can lead to both conductive hearing loss and repeated otitis media. TMPs occur in 3 to 5% of cases after ear tube placement as well as in cases of acute otitis media (the second most common infection in pediatrics), chronic otitis media with or without cholesteatoma, or as a result of barotrauma to the ear. About 55,000 tympanoplasties, the surgery performed to reconstruct TMPs, are performed every year and the commonly used cartilage grafting technique has a success rate between 43% to 100%...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28719716/the-sophono-bone-conduction-system-surgical-audiologic-and-quality-of-life-outcomes
#4
Timothy Mclean, Irumee Pai, Andrew Philipatos, Michael Gordon
We prospectively evaluated the surgical, audiologic, and quality-of-life outcomes in 5 patients-2 men and 3 women, aged 22 to 64 years (mean: 41.8)-who were implanted with the Sophono Alpha 2 MPO Processor. The indications for implantation of this bone-conduction device included recurrent ear canal infections with hearing aids (n = 3), single-sided deafness (n = 1), and patient preference in view of difficulty using a conventional hearing aid (n = 1). In addition to the patient with single-sided deafness, 3 patients had a bilateral mixed hearing loss and 1 had a bilateral conductive hearing loss...
July 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28718886/brainstem-auditory-evoked-responses-in-37-dogs-with-otitis-media-before-and-after-topical-therapy
#5
S Paterson
OBJECTIVES: The objective of this study was to determine whether intra-aural administration of aqueous solutions of marbofloxacin, gentamicin, tobramycin and ticarcillin (used off-licence) was associated with changes in hearing as measured by brainstem auditory evoked responses. MATERIALS AND METHODS: Dogs diagnosed with otitis media (n=37) underwent brainstem auditory evoked response testing and then were treated for their ear disease. First, the external ear canal and middle ear were flushed with sterile saline followed by EDTA tris with 0·15% chlorhexidine...
July 18, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28709468/il-32%C3%AE-promotes-the-healing-of-murine-cutaneous-lesions-caused-by-leishmania-braziliensis-infection-in-contrast-to-leishmania-amazonensis
#6
Rodrigo Saar Gomes, Muriel Vilela Teodoro Silva, Jéssica Cristina Dos Santos, Lucas Luiz de Lima Silva, Aline Carvalho Batista, Juliana Reis Machado, Mauro Martins Teixeira, Miriam Leandro Dorta, Milton Adriano Pelli de Oliveira, Charles A Dinarello, Leo A B Joosten, Fátima Ribeiro-Dias
BACKGROUND: Interleukin 32 (IL-32) is a pro-inflammatory cytokine induced in patients with American tegumentary leishmaniasis (ATL) caused by Leishmania braziliensis. Here, we investigated whether IL-32 is also expressed in patient lesions caused by L. amazonensis. In addition, we evaluated experimental L. amazonensis and L. braziliensis infections in C57BL/6 transgenic mice for human IL-32γ (IL-32γTg) in comparison with wild-type (WT) mice that do not express the IL-32 gene. RESULTS: Human cutaneous lesions caused by L...
July 14, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28708814/chirp-evoked-otoacoustic-emissions-and-middle-ear-absorbance-for-monitoring-ototoxicity-in-cystic-fibrosis-patients
#7
Angela C Garinis, Douglas H Keefe, Lisa L Hunter, Denis F Fitzpatrick, Daniel B Putterman, Garnett P McMillan, Jeffrey A Gold, M Patrick Feeney
OBJECTIVES: The goal of this study was to investigate the use of transient-evoked otoacoustic emissions (TEOAEs) and middle ear absorbance measurements to monitor auditory function in patients with cystic fibrosis (CF) receiving ototoxic medications. TEOAEs were elicited with a chirp stimulus using an extended bandwidth (0.71 to 8 kHz) to measure cochlear function at higher frequencies than traditional TEOAEs. Absorbance over a wide bandwidth (0.25 to 8 kHz) provides information on middle ear function...
July 13, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28707578/acute-otitis-media-in-children
#8
Alexander Kc Leung, Alex H C Wong
BACKGROUND: Acute otitis media is a common childhood infection. Prompt diagnosis and appropriate treatment are very important. OBJECTIVE: To review in depth the epidemiology, pathophysiology, clinical manifestations, diagnosis, complications and particularly treatment of acute otitis media in children. METHODS: A PubMed search was completed in Clinical Queries using the key term "acute otitis media". Patents were searched using the key term "acute otitis media" from www...
July 12, 2017: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/28704391/visceral-leishmaniasis-in-an-environmentally-protected-area-in-southeastern-brazil-epidemiological-and-laboratory-cross-sectional-investigation-of-phlebotomine-fauna-wild-hosts-and-canine-cases
#9
Maria Rita Donalisio, Laís Moraes Paiz, Vanessa Gusmon da Silva, Virgínia Bodelão Richini-Pereira, Andrea Paula Bruno von Zuben, Claudio Luiz Castagna, Gabriela Motoie, Roberto Mitsuyoshi Hiramoto, José Eduardo Tolezano
BACKGROUND: Leishmaniasis is a rapidly expanding zoonosis that shows increasing urbanization. Concern exists regarding the role of wildlife in visceral leishmaniasis (VL) transmission, due to frequent natural or anthropogenic environmental changes that facilitate contact between wildlife, humans and their pets. The municipality of Campinas, in southeastern Brazil, initially recorded VL in 2009, when the first autochthonous case was confirmed in a dog living in an upscale residential condominium, located inside an environmentally protected area (EPA)...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28695767/treatment-of-recurrent-eczematous-external-otitis-with-honey-eardrops-a-proof-of-concept-study
#10
Darius Henatsch, Cindy H Nabuurs, Rens M van de Goor, Petra F Wolffs, Robert J Stokroos
Eczematous external otitis is a chronic inflammatory disease and often difficult to treat. Our objective was to investigate the clinical effect and in vitro antibacterial potential of medical honey eardrops as treatment of eczematous external otitis. In a prospective study, 15 patients diagnosed with recurrent eczematous external otitis were treated with medical honey eardrops for 2 weeks. The following clinical outcomes were evaluated: visual analog scale of ear complaints, score of eczema, and eradication of bacterial infection...
July 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28692118/selection-of-maize-inbred-lines-and-gene-expression-for-resistance-to-ear-rot
#11
G S Pereira, R G V Pinho, E V R V Pinho, L P M Pires, L A Y Bernardo Junior, J L A Pereira, M P Melo
In recent years, there has been a large incidence of fungi causing "ear rot" in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance to ear rot to observe if there is a maternal effect to resistance to ear rot, to study genetic control of the traits evaluated in hybrids originating from inbred lines of the maize breeding program at the Agriculture Department of Universidade Federal de Lavras (Lavras, MG, Brazil), and characterize the gene expression pattern related to the plant defense mechanism against F...
July 6, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28690224/-autologous-tissue-reconstruction-of-tarsal-plate-combined-with-temporal-flap-in-repairing-full-thickness-lower-eyelid-defect
#12
Ming Li, Shaoqian Liu, Nian Chen, Feijiao Duan, Hongju Xie
To evaluate the clinical effect of combination of autologous tissue reconstruction of tarsal plate with temporal flap on repair of full-thickness lower eyelid defect. 
 Methods: Eleven patients (11 eyes) underwent hard palate mucosa or ear cartilage combined the emporal flap with the orbicularis oculi muscle to repair full-thickness defect of palpebra inferior. Of the 11 patients, 6 had more than 75% eyelid defect area, and 5 had more than 50% eyelid defect area. 
 Results: All 11 eyes closed completely, with no entropion or ectropion, and returned to normal basically...
June 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28688562/decisional-regret-following-ventilation-tube-insertion
#13
Michele M Carr, Jillian Printz, Shreya Thakur
OBJECTIVE: The purpose of this study was to see if parental regret following ventilation tube (VT) insertion was related to non-resolution of ear infections and thus ongoing need for otolaryngological care and VT reinsertion. MATERIALS AND METHODS: All consecutive parents presenting with children who had VT in place were given a validated regret survey and asked the reason for their visit. Chart review was used for medical history. RESULTS: Two hundred and ten respondents were included...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28688556/pediatric-langerhans-cell-histiocytosis-of-the-lateral-skull-base
#14
Ananya Majumder, Cameron C Wick, Rebecca Collins, Timothy N Booth, Brandon Isaacson, J Walter Kutz
OBJECTIVE: Describe the presentation, imaging characteristics, management, and outcomes of pediatric patients with Langerhans cell histiocytosis (LCH) of the temporal bone. METHODS: A retrospective chart review was performed between 2000 and 2014 at a single tertiary care children's hospital. Fourteen patients were identified with a diagnosis of LCH and involvement of the temporal bone. RESULTS: Ten patients were female and ten were Caucasian...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28686716/gsr-is-not-essential-for-the-maintenance-of-antioxidant-defenses-in-mouse-cochlea-possible-role-of-the-thioredoxin-system-as-a-functional-backup-for-gsr
#15
Chul Han, Mi-Jung Kim, Dalian Ding, Hyo-Jin Park, Karessa White, Logan Walker, Tongjun Gu, Masaru Tanokura, Tatsuya Yamasoba, Paul Linser, Richard Salvi, Shinichi Someya
Glutathione reductase (GSR), a key member of the glutathione antioxidant defense system, converts oxidized glutathione (GSSG) to reduced glutathione (GSH) and maintains the intracellular glutathione redox state to protect the cells from oxidative damage. Previous reports have shown that Gsr deficiency results in defects in host defense against bacterial infection, while diquat induces renal injury in Gsr hypomorphic mice. In flies, overexpression of GSR extended lifespan under hyperoxia. In the current study, we investigated the roles of GSR in cochlear antioxidant defense using Gsr homozygous knockout mice that were backcrossed onto the CBA/CaJ mouse strain, a normal-hearing strain that does not carry a specific Cdh23 mutation that causes progressive hair cell degeneration and early onset of hearing loss...
2017: PloS One
https://www.readbyqxmd.com/read/28683780/bacterial-agents-and-antibiotic-resistance-profiles-of-infections-from-different-sites-that-occurred-among-patients-at-debre-markos-referral-hospital-ethiopia-a-cross-sectional-study
#16
Wondemagegn Mulu, Bayeh Abera, Mulat Yimer, Tadesse Hailu, Haimanot Ayele, Dereje Abate
BACKGROUND: In developing countries like Ethiopia, infections with antibiotic resistant bacteria become a real threat. Hence, monitoring of local level antimicrobial resistance profile is indispensable to contain the spread of drug resistant bacteria and intervene poor awareness on antimicrobial resistance. Therefore, this study aimed at determining bacterial and antibiotic resistance profiles of infections from different sites that occurred among patients. METHODS: Retrospective data recorded were analyzed on culture and drug susceptibility test results at Debre Markos Referral Hospital which were performed from 2011 to 2014...
July 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28680734/hydroxyapatite-bone-cement-application-for-the-reconstruction-of-retrosigmoid-craniectomy-in-the-treatment-of-cranial-nerves-disorders
#17
Nouman Aldahak, Derrick Dupre, Mohamed Ragaee, Sebastien Froelich, Jack Wilberger, Khaled M Aziz
BACKGROUND: Retromastoid craniectomy (RSC) is a cardinal surgical approach used to access the posterior fossa. Hydroxyapetite bone cement (HBC) is frequently employed for cranioplasty in efforts to prevent cerebrospinal fluid (CSF) leak, whilst maintaining low complication rates and good cosmetic satisfaction. The authors aim to determine the safety and effectiveness of HBC for reconstruction RSC used for treatment of various cranial nerves disorders. METHODS: The authors conducted a retrospective one-center two surgeons review of 113 patients who underwent RSC filled with HBC for the treatment of cranial nerve disorders...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28680501/methods-of-hearing-preservation-during-cochlear-implantation
#18
REVIEW
Ahmed Khater, Mohammad Waheed El-Anwar
Introduction  Recent advances in surgical techniques and electrode design have made residual hearing preservation during cochlear implantation (CI) possible, achievable, and desirable. Objectives  The objective of this study was to review the literature regarding methods used for hearing preservation during CI surgery. Data Synthesis  We performed a search in the LILACS, MEDLINE, SciELO, PubMed databases, and Cochrane Library, using the keywords CI, hearing preservation, CI electrode design, and CI soft surgery...
July 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28678056/enlarged-vestibular-aqueduct-syndrome-sudden-hearing-loss-in-a-child-with-a-cerebral-shunt
#19
Wendi-Jo Wendt, Andrew Hashikawa
Enlarged vestibular aqueduct syndrome (EVAS) is the most common congenital ear anomaly that causes sensorineural hearing loss in children and may predispose a child to sudden hearing loss from sudden pressure changes or minor head trauma. We report a case of a 4-year-old boy with a history of a ventriculoperitoneal shunt and migraines who presented to the emergency department with parental and child care provider reports of acute hearing loss, without a history of trauma, infection, or hardware malfunction, who was diagnosed with bilateral EVAS...
July 4, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28674570/paediatric-otogenic-tetanus-an-evidence-of-poor-immunization-in-nigeria
#20
Segun Ayodeji Ogunkeyede, Adekunle Daniel, Omowonuola Ogundoyin
Suppurative otitis media is a common childhood infection that predisposes to otogenic tetanus. Tetanus is a vaccine preventable disease that is associated with high cost of care and mortality. This study highlights reasons for otogenic tetanus in Nigerian children and way of reducing the menace. This is a 5-year retrospective review of all patients managed for otogenic tetanus in at the Department of Otorhinolaryngology, University College Hospital, Ibadan. The data collected include demographic, clinical presentations, tetanus immunisation history, and duration of hospital admission, and management- outcome...
2017: Pan African Medical Journal
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