keyword
MENU ▼
Read by QxMD icon Read
search

ear

keyword
https://www.readbyqxmd.com/read/29352881/carbon-nanotube-modified-oxidized-regenerated-cellulose-gauzes-for-hemostatic-applications
#1
Feng Cheng, Changyu Liu, Hongbin Li, Xinjing Wei, Tingsheng Yan, Yunfeng Wang, Yunjia Song, Jinmei He, Yudong Huang
Functionalized carbon nanotubes have recently received interest because of their unique properties, especially in the biomedical field. In this research, unmodified multiwalled carbon nanotubes (MWCNTs), and functionalized carbon nanotubes with amino groups (MWCNTs-NH2) and carboxyl groups (MWCNTs-COOH) were grafted to oxidized regenerated cellulose (ORC) gauze to fabricate novel functionalized ORC, and the performance of the functionalized gauze was investigated. The functionalized ORC was characterized by FT-IR, XPS and SEM, which showed the different kinds of CNTs grafted on its surface...
March 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352610/neural-representation-of-octave-illusion-in-the-human-cortex-revealed-with-functional-magnetic-resonance-imaging
#2
Keita Tanaka, Hiroki Kurasaki, Shinya Kuriki
The auditory "octave illusion" arises when dichotic tones, presented one octave apart, alternate rapidly between the ears. This study aimed to explore the link between the perception of illusory pitches and brain activity during presentation of dichotic tones. We conducted a behavioral study of how participants perceived binaural dichotic tones of octave illusions and classified them, based on the reported percepts, in an illusion (ILL) group, without an illusion (non-ILL) group, and others. We recorded brain activity using functional magnetic resonance imaging and analyzed the activation due to dichotic illusion tones...
January 8, 2018: Hearing Research
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
#3
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/29352457/geographic-vocal-variation-and-perceptual-discrimination-abilities-in-male-australian-sea-lions
#4
Heidi Ahonen, Robert G Harcourt, Adam J Stow, Isabelle Charrier
Vocal characteristics can vary among and within populations. In species with geographic variation in the structure of vocalizations, individuals may have the ability to discriminate between calls from local and non-local individuals. The ability to distinguish differences in acoustic signals is likely to have a significant influence on the outcome of social interactions between individuals, including potentially mate selection and breeding success. Pinnipeds (seals, fur seals, sea lions and walruses) are highly vocal yet the Australian sea lion (Neophoca cinerea) is the only eared seal known to show geographic vocal variation in male barks...
January 19, 2018: Animal Cognition
https://www.readbyqxmd.com/read/29352310/leishmania-proteophosphoglycans-regurgitated-from-infected-sand-flies-accelerate-dermal-wound-repair-and-exacerbate-leishmaniasis-via-insulin-like-growth-factor-1-dependent-signalling
#5
Emilie Giraud, Tereza Lěstinová, Tamsyn Derrick, Oihane Martin, Rod J Dillon, Petr Volf, Ingrid Műller, Paul A Bates, Matthew E Rogers
Leishmania parasites are transmitted to vertebrate hosts by female phlebotomine sand flies as they bloodfeed by lacerating the upper capillaries of the dermis with their barbed mouthparts. In the sand fly midgut secreted proteophosphoglycans from Leishmania form a biological plug known as the promastigote secretory gel (PSG), which blocks the gut and facilitates the regurgitation of infective parasites. The interaction between the wound created by the sand fly bite and PSG is not known. Here we nanoinjected a sand fly egested dose of PSG into BALB/c mouse skin that lead to the differential expression of 7,907 transcripts...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29352233/hearing-capacities-and-morphology-of-the-auditory-system-in-serrasalmidae-teleostei-otophysi
#6
Geoffrey Mélotte, Eric Parmentier, Christian Michel, Anthony Herrel, Kelly Boyle
Like all otophysan fishes, serrasalmids (piranhas and relatives) possess a Weberian apparatus that improves their hearing capacities. We compared the hearing abilities among eight species of serrasalmids having different life-history traits: herbivorous vs. carnivorous and vocal vs. mute species. We also made 3D reconstructions of the auditory system to detect potential morphological variations associated with hearing ability. The hearing structures were similar in overall shape and position. All the species hear in the same frequency range and only slight differences were found in hearing thresholds...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352094/auditory-brainstem-function-in-microcephaly-related-to-zika-virus-infection
#7
Dimitri Marques Abramov, Tania Saad, Saint-Clair Gomes-Junior, Daniel de Souza E Silva, Izabel Araújo, Maria Elizabeth Lopes Moreira, Vladimir V Lazarev
OBJECTIVE: To study the effect of prenatal Zika virus (ZV) infection on brainstem function reflected in brainstem auditory evoked potentials (BAEPs). METHODS: In a cross-sectional study in 19 children (12 girls) with microcephaly related to ZV infection, aged between 12 and 62 weeks, the brainstem function was examined through BAEPs. The latencies of wave peaks I, III, and V of the left and right ears (n = 37) were standardized according to normative data, and compared between them by 2-tailed t test...
January 19, 2018: Neurology
https://www.readbyqxmd.com/read/29351279/corrective-binaural-processing-for-bilateral-cochlear-implant-patients
#8
Christopher A Brown
Although bilateral cochlear implant users receive input to both ears, they nonetheless have relatively poor localization abilities in the horizontal plane. This is likely because of the two binaural cues, they have good sensitivity to interaural differences of level (inter-aural level differences, or ILDs), but not those of time (inter-aural time differences; ITDs). Here, localization performance is assessed in six bilateral cochlear implant patients when instantaneous ITDs are measured and converted to ILDs, a strategy that results in larger-than-typical ILDs...
2018: PloS One
https://www.readbyqxmd.com/read/29351047/otologic-disease-following-palatoplasty-in-international-cleft-palate-cohort
#9
Jeff Markey, Rebecca Maine, Kimberly Daniels, Emily Yang Yu, George Gregory, William Hoffman, Jorge Palacios
OBJECTIVE: Study the prevalence of otologic disease in a pediatric post-palatoplasty population with no prior ear tube placement in resource-deprived countries and assess patient characteristics associated with these abnormal results. DESIGN: Retrospective data review. PARTICIPANTS: Ecuadorian and Chinese children identified during humanitarian cleft lip and palate repair trips with cleft palates undergoing palatoplasty from 2007 to 2010. INTERVENTIONS: Tympanometry and otoacoustic emission (OAE) testing performed following palatoplasty...
February 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29349667/comparison-of-enalapril-candesartan-and-intralesional-triamcinolone-in-reducing-hypertrophic-scar-development-an-experimental-study
#10
Canser Yilmaz Demir, Muhammet Eren Ersoz, Remzi Erten, Omer Faruk Kocak, Yilmaz Sultanoglu, Yildiray Basbugan
BACKGROUND: The purpose of this study was to compare the effects of oral enalapril, an angiotensin-converting enzyme inhibitor (ACE-I), oral candesartan, an angiotensin receptor blocker (ARB), and intralesional corticosteroid treatments in reducing scar formation. METHODS: Twenty male rabbits were divided into five study groups: A (sham), B (control), C (ACE-I), D (ARB) and E (intralesional corticosteroid). The rabbit ear hypertrophic scar model was used. The hypertrophic scars were photographed and analyzed with the program ImageJ quantitatively to determine the degree of collagen fibers...
January 18, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29349595/the-development-of-a-nano-based-approach-to-alleviate-cisplatin-induced-ototoxicity
#11
Mohammad N Kayyali, Andrew J Ramsey, Elizabeth M Higbee-Dempsey, Lesan Yan, Bert W O'Malley, Andrew Tsourkas, Daqing Li
Cisplatin-induced hearing loss is experienced by a high percentage of patients with squamous cell carcinoma undergoing cisplatin chemotherapy. A novel nano-construct capable of sequestering extracellular cisplatin was developed to combat this problem. The nano-construct consisted of superparamagnetic iron oxide nanoparticles (SPIONs) entrapped within polymeric micelles, which were formed from a glutathione diethyl ester-conjugated amphiphilic diblock copolymer. The glutathione-micelles were analyzed at the cellular level and in an organotypic study for safety evaluation...
January 18, 2018: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/29349520/experimental-study-of-5-fluorouracil-encapsulated-ethosomes-combined-with-co2-fractional-laser-to-treat-hypertrophic-scar
#12
Zhen Zhang, Jun Chen, Jun Huang, Yan Wo, Yixin Zhang, Xiangdong Chen
OBJECTIVE: This study is designed to explore permeability of ethosomes encapsulated with 5-florouracil (5-FU) mediated by CO2 fractional laser on hypertrophic scar tissues. Moreover, therapeutic and duration effect of CO2 fractional laser combined with 5-FU encapsulated ethosomes in rabbit ear hypertrophic scar model will be evaluated. METHODS: The permeated amount of 5-FU and retention contents of 5-FU were both determined by high-performance liquid chromatography (HPLC)...
January 18, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29349514/nb-uvb-irradiation-downregulates-keratin-17-expression-in-keratinocytes-by-inhibiting-the-erk1-2-and-stat3-signaling-pathways
#13
Yuchen Zhuang, Changxu Han, Bing Li, Liang Jin, Erle Dang, Hui Fang, Hongjiang Qiao, Gang Wang
Keratin-17 (K17) is a cytoskeletal protein produced by keratinocytes (KCs), which is overexpressed in psoriasis and may play a pivotal role in its pathogenesis. Narrow-band ultraviolet B (NB-UVB) irradiation is used as a general treatment for psoriasis, although its impact on K17 expression has yet to be determined. In this study, we aimed to investigate the effect of NB-UVB irradiation on K17 expression and its signaling pathways. After exposure to NB-UVB irradiation, immortalized human keratinocytes (HaCaT cells) were analyzed by flow cytometry, CCK-8 assays and transmission electron microscopy to examine proliferation...
January 18, 2018: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29348711/efficacy-of-empirical-therapy-with-combined-ciprofloxacin-versus-topical-drops-alone-in-patients-with-tubotympanic-chronic-suppurative-otitis-media-a-randomized-double-blind-controlled-trial
#14
Maisam Abbas Onali, Syeda Beenish Bareeqa, Sadaf Zia, Syed Ijlal Ahmed, Asneha Owais, Ahmad Nawaz Ahmad
Background: One of the prevailing otologic infections in our country is chronic suppurative otitis media, especially the tubotympanic type for which various treatment protocols are followed. Usually, oral and topical antibiotics (mainly quinolones) are given alone or in combination. There is a lack of consensus as to whether topical drops alone are effective or a combined oral and systemic therapy should be prescribed. In our study, we have attempted to observe the efficacy of empirical therapy with combined ciprofloxacin versus topical drops only in patients with tubotympanic chronic suppurative otitis media for control of infection...
2018: Clinical Medicine Insights. Ear, Nose and Throat
https://www.readbyqxmd.com/read/29348657/an-ethylene-response-factor-mxerf4-functions-as-a-repressor-of-fe-acquisition-in-malus-xiaojinensis
#15
Wei Liu, Ting Wu, Qiwei Li, Xinzhong Zhang, Xuefeng Xu, Tianhong Li, Zhenhai Han, Yi Wang
Iron (Fe) is an essential element for plants; however, its availability is limited as it forms insoluble complexes in the soil. Consequently, plants have developed mechanisms to adapt to low Fe conditions. We demonstrate that ethylene is involved in Fe deficiency-induced physiological responses in Malus xiaojinensis, and describe the identification of MxERF4 as a protein-protein interaction partner with the MxFIT transcription factor, which is involved in the iron deficiency response. Furthermore, we demonstrate that MxERF4 acts as an MxFIT interaction partner to suppresses the expression of the Fe transporter MxIRT1, by binding directly to its promoter, requiring the EAR motif of the MxERF4 protein...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348276/congenital-tuberculosis-presenting-as-otorrhoea-in-a-preterm-infant
#16
Jose Carlos Aldana-Aguirre, Hamdy El-Hakim, Ernest Phillipos, Marc-Antoine Landry
A premature infant of 25 weeks' gestational age presented at 8 weeks after birth with otorrhoea from the left ear. Following a course of topical and systemic antibiotics, the patient deteriorated developing facial nerve paralysis and cervical lymphadenitis. Contrast-enhanced CT and MRI of the head showed a destructive process of the left temporal bone. These findings prompted the clinicians to send swabs from the purulent discharge from the ear for acid-fast bacilli stain. Furthermore, surgical exploration and debridement were undertaken...
January 17, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29348084/molecular-characterization-of-autosomal-recessive-non-syndromic-hearing-loss-in-selected-families-from-district-mardan-pakistan
#17
Shahid Hussain, Jabar Zaman Khattak, Mohammad Ismail, Qaisar Mansoor, Mohammad Haroon Khan
Deafness is the most common sensory disorder, which affects 1/1000 neonates globally. Genetic factors are major contributors for hearing impairment. This study was conducted to explore the linkage of DFNB loci and their mutations with NSHL in selected Pakistani families. We included 10 families with history of deafness from district Mardan, Pakistan. Blood sample (5ml) along with personal and clinical information was collected from the available family members including both diseased and un-affected individuals...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29347913/an-unusual-case-of-infective-pneumocephalus-case-report-of-pneumocephalus-exacerbated-by-continuous-positive-airway-pressure
#18
Abdus Samad Ansari, Brittany B Dennis, Dilip Shah, Winfred Baah
BACKGROUND: Pneumocephalus, illustrated by air in the cranial vault is relatively infrequent and generally associated with neurosurgery, trauma, meningitis and barotrauma. However cases of spontaneous non-traumatic pneumocephalus remain rare. While the relationship between continuous positive airway pressure (CPAP) and atraumatic pneumocephalus has been previously reported, to our knowledge the rare presentation associated with sinus wall osteomyelitis has never been described. We summarize here the case of a 67-year-old woman's acute presentation of Streptococcus salvarius infection after a sudden drop in her consciousness...
January 18, 2018: BMC Emergency Medicine
https://www.readbyqxmd.com/read/29345618/necaps-are-negative-regulators-of-the-ap2-clathrin-adaptor-complex
#19
Gwendolyn M Beacham, Edward A Partlow, Jeffrey J Lange, Gunther Hollopeter
Eukaryotic cells internalize transmembrane receptors via clathrin-mediated endocytosis, but it remains unclear how the machinery underpinning this process is regulated. We recently discovered that membrane-associated muniscin proteins such as FCHo and SGIP initiate endocytosis by converting the AP2 clathrin adaptor complex to an open, active conformation that is then phosphorylated (Hollopeter et al., 2014). Here we report that loss of ncap-1, the sole C. elegans gene encoding an adaptiN Ear-binding Coat-Associated Protein (NECAP), bypasses the requirement for FCHO-1...
January 18, 2018: ELife
https://www.readbyqxmd.com/read/29345398/music-reduces-state-anxiety-scores-in-patients-undergoing-pleural-procedures-a-randomized-controlled-trial
#20
John Mackintosh, Grace Cone, Kate Harland, Krishna B Sriram
BACKGROUND: Patient anxiety is an often overlooked complication of pleural diagnostic and therapeutic procedures. Listening to music is effective in reducing patient anxiety in some endoscopy procedures but has not yet been evaluated in pleural procedures. METHODS: Consecutive patients undergoing therapeutic pleural procedures were randomised to music and control groups. Participants in the music group listened to self selected music using ear-bud headphones for the duration of the procedure...
January 18, 2018: Internal Medicine Journal
keyword
keyword
3290
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"