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https://www.readbyqxmd.com/read/28646426/eftrenonacog-alfa-a-review-in-haemophilia-b
#1
Sheridan M Hoy
Eftrenonacog alfa (Alprolix™) is a recombinant fusion protein comprising human factor IX (FIX) covalently linked to the constant region (Fc) domain of human IgG1 (i.e. rFIXFc). The presence of the Fc domain extends the terminal half-life (t½) of rFIXFc, permitting prolonged treatment intervals. rFIXFc is available for intravenous use for the prophylaxis and treatment of bleeding in patients with haemophilia B. In two multinational, phase III studies in previously treated children, adolescents and adults with severe haemophilia B, rFIXFc prophylaxis resulted in low median annualized bleeding rates (ABRs), and was associated with reductions in median weekly factor consumption and dosing frequency compared with pre-study FIX regimens...
June 23, 2017: Drugs
https://www.readbyqxmd.com/read/28646272/rhesus-cochlear-and-vestibular-functions-are-preserved-after-inner-ear-injection-of-saline-volume-sufficient-for-gene-therapy-delivery
#2
Chenkai Dai, Mohamed Lehar, Daniel Q Sun, Lani Swarthout Rvt, John P Carey, Tim MacLachlan, Doug Brough, Hinrich Staecker, Alexandra M Della Santina, Timothy E Hullar, Charles C Della Santina
Sensorineural losses of hearing and vestibular sensation due to hair cell dysfunction are among the most common disabilities. Recent preclinical research demonstrates that treatment of the inner ear with a variety of compounds, including gene therapy agents, may elicit regeneration and/or repair of hair cells in animals exposed to ototoxic medications or other insults to the inner ear. Delivery of gene therapy may also offer a means for treatment of hereditary hearing loss. However, injection of a fluid volume sufficient to deliver an adequate dose of a pharmacologic agent could, in theory, cause inner ear trauma that compromises functional outcome...
June 23, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28643534/transplantation-of-mouse-induced-pluripotent-stem-cells-into-the-cochlea-for-the-treatment-of-sensorineural-hearing-loss
#3
Jing Chen, Lina Guan, Hengtao Zhu, Shan Xiong, Liang Zeng, Hongqun Jiang
CONCLUSION: Mouse-induced pluripotent stem cells (iPSCs) could differentiate into hair cell-like cells and spiral ganglion-like cells after transplantation into mouse cochleae, but it cannot improve the auditory brain response (ABR) thresholds in short term. OBJECTIVE: To evaluate the potential of iPSCs for use as a source of transplants for the treatment of sensorineural hearing loss (SNHL). METHODS: Establishing SNHL mice model, then injecting the iPSCs or equal volume DMEM basic medium into the cochleae, respectively...
June 23, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28633631/knowledge-of-antibiotic-resistance-and-antibiotic-prescription-practices-among-prescribers-in-the-brong-ahafo-region-of-ghana-a-cross-sectional-study
#4
Kwaku Poku Asante, Ellen Abrafi Boamah, Martha Ali Abdulai, Kwame Ohene Buabeng, Emmanuel Mahama, Francis Dzabeng, Edith Gavor, Edith Andrews Annan, Seth Owusu-Agyei, Martha Gyansa-Lutterodt
BACKGROUND: Antibiotic resistance (ABR) has become a major public health challenge in most parts of the world including Ghana and is a major threat to gain in bacterial disease control. The role of prescribers in the control of antibiotics is identified as crucial in developing interventions to control ABR. To guide policy recommendations on ABR, a study was carried out among prescribers to identify gaps in their knowledge of ABR and to document their prescription practices. METHOD: A cross-sectional survey was conducted among prescribers from both public and private facilities in the Brong Ahafo Region of Ghana using both quantitative and qualitative methods in 2014...
June 20, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28631252/synthesis-and-characterization-of-novel-carboxymethyl-assam-bora-rice-starch-for-the-controlled-release-of-cationic-anticancer-drug-based-on-electrostatic-interactions
#5
Sharmistha Mohapatra, Anees Ahmad Siddiqui, Mohammed Anwar, Neha Bhardwaj, Sohail Akhter, Farhan Jalees Ahmad
Carboxymethyl Assam Bora rice starch (CM-ABRS) was chemically synthesized in non-aqueous medium with the optimum degree of substitution (DS) of 1.23, and physicochemically characterized by FT-IR, DSC, XRD, and SEM analysis. Comparative evaluation of CM-ABRS with native starch (ABRS) for powder flow characteristics, swelling index, apparent solubility, rheological properties, textural properties, and mucoadhesive studies were carried out. The aim of the current work was to investigate the potential of CM-ABRS as a novel carrier for the water-soluble chemotherapeutic, doxorubicin hydrochloride (DOX)...
June 19, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28628154/-morphological-changes-on-cochlear-hair-cells-of-rats-in-simulated-weightlessness-and-inboard-noise
#6
(no author information available yet)
OBJECTIVE: To observe the morphological changes on cochlear hair cells of rats in simulated weightlessness and inboard noise and to investigate the different changes in three turns of hair cells. METHODS: Thirty-two healthy SD rats, all males, were randomly divided into four groups: control group, weightlessness group, noise group and weightlessness+noise groups (n=8). Then rats were exposed to -30° head down tilt as simulated weightlessness and inboard noise including steady-state noise which was (72±2) dB SPL and impulse noise up to 160 dB SPL in spaceship environment...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28626890/transcriptomic-analysis-of-rice-aleurone-cells-identified-a-novel-abscisic-acid-response-element
#7
Kenneth A Watanabe, Arielle Homayouni, Lingkun Gu, Kuan-Ying Huang, Tuan-Hua David Ho, Qingxi J Shen
Seeds serve as a great model to study plant responses to drought stress, which is largely mediated by abscisic acid (ABA). The ABA responsive element (ABRE) is a key cis-regulatory element in ABA signaling. However, its consensus sequence, (ACGTG(G/T)C), is present in the promoters of only about 40% of ABA induced genes in rice aleurone cells, suggesting other ABREs may exist. To identify novel ABREs, RNA-sequencing was performed on aleurone cells of rice seeds treated with 20 μM ABA. Gibbs sampling was used to identify enriched elements and particle bombardment-mediated transient expression studies were performed to verify the function...
June 18, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28626386/minimal-effects-of-age-and-exposure-to-a-noisy-environment-on-hearing-in-alpha9-nicotinic-receptor-knockout-mice
#8
Amanda M Lauer
Studies have suggested a role of weakened medial olivocochlear (OC) efferent feedback in accelerated hearing loss and increased susceptibility to noise. The present study investigated the progression of hearing loss with age and exposure to a noisy environment in medial OC-deficient mice. Alpha9 nicotinic acetylcholine receptor knockout (α9KO) and wild types were screened for hearing loss using auditory brainstem responses. α9KO mice housed in a quiet environment did not show increased hearing loss compared to wild types in young adulthood and middle age...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28625810/evaluating-the-ototoxicity-of-a-anti-mrsa-peptide-kr-12-a2
#9
Chung Man Sung, Hong Chan Kim, Yong Beom Cho, Song Yub Shin, Chul Ho Jang
INTRODUCTION: Methicillin-Resistant Staphylococcus aureus (MRSA) is an emerging problem for the treatment of chronic suppurative otitis media, and also for pediatric tympanostomy tube otorrhea. To date, there are no effective topical antibiotic drugs to treat MRSA otorrhea. OBJECTIVE: In this study, we evaluated the ototoxicity of topical KR-12-a2 solution on the cochlea when it applied topically in the middle ear of guinea pigs. METHODS: The antimicrobial activity of KR-12-a2 against MRSA strains was examined by using the inhibition zone test...
May 31, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28623049/a-resident-and-fellow-driven-review-course-to-prepare-trainees-for-the-abr-core%C3%A2-examination
#10
Daniel Andrew Ortiz, Anthony Paul Trace, Michele Retrouvey
No abstract text is available yet for this article.
June 14, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28619948/administration-of-immunobiotic-lactobacillus-plantarum-delays-but-does-not-prevent-lethal-pneumovirus-infection-in-rag1-mice
#11
Caroline M Percopo, Michelle Ma, Helene F Rosenberg
Administration of immunobiotic Lactobacillus plantarum (Lp) directly to the respiratory mucosa promotes cross-protection against lethal pneumovirus infection via B-cell-independent mechanisms. In this study, we examined Lp-mediated cross protection in Rag1(-/-) mice which cannot clear virus from lung tissue. Although Lp was initially protective, Rag1(-/-) mice ultimately succumbed to a delayed lethal outcome associated with local production of the proinflammatory cytokines CCL1, -2, and -7, granulocyte recruitment, and ongoing virus replication...
June 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28616778/auditory-brainstem-responses-after-electrolytic-lesions-in-bilateral-subdivisions-of-the-medial-geniculate-body-of-tree-shrews
#12
Meichan Zhu, Heng Li, Bibek Gyanwali, Guangyao He, Chenglin Qi, Xuemin Yang, Zhenhua Li, Zhenxing Yao, Zhi Wang, Anzhou Tang
This study aimed to establish a tree shrew model of bilateral electrolytic lesions in the medial geniculate body (MGB) to determine the advantages of using a tree shrew model and to assess the pattern of sound processing in tree shrews after bilateral electrolytic damage in different parts of the MGB. The auditory brainstem responses (ABRs) of a normal control group (n = 30) and an electrical damage group (n = 30) were tested at 0 h, 24 h, 48 h, 72 h, 7 days, 15 days, and 30 days after surgery. (1) The bilateral ablations group exhibited a significant increase in the ABR threshold of the electrolytic damage group between pre- and post-operation...
June 14, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28613915/inter-country-analysis-of-breast-density-classification-using-visual-grading
#13
Christine N Damases, Peter Hogg, Mark F McEntee
OBJECTIVE: Disagreement in mammographic breast density (MBD) assessment can impact breast cancer risk stratification, choices of further breast cancer screening intervals and pathways. This study examines whether inter-country MBD expectations and assessment approaches are associated with differences in MBD assessment. METHODS: Twenty American Board of Radiology (ABR) examiners and 24 United Kingdom (UK) practitioners using the 4(th) edition BI-RADS(®) lexicon assessed 40 mammogram cases of 20 women...
June 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28611111/the-impact-of-interventions-to-improve-the-quality-of-prescribing-and-use-of-antibiotics-in-primary-care-patients-with-respiratory-tract-infections-a-systematic-review-protocol
#14
Nahara Anani Martínez-González, Samuel Coenen, Andreas Plate, Annelies Colliers, Thomas Rosemann, Oliver Senn, Stefan Neuner-Jehle
INTRODUCTION: Respiratory tract infections (RTIs) are the most common reason for primary care (PC) consultations and for antibiotic prescribing and use. The majority of RTIs have a viral aetiology however, and antibiotic consumption is ineffective and unnecessary. Inappropriate antibiotic use contributes greatly to antibiotic resistance (ABR) leading to complications, increased adverse events, reconsultations and costs. Improving antibiotic consumption is thus crucial to containing ABR, which has become an urgent priority worldwide...
June 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28607824/electrocochleography-summating-potential-seen-on-auditory-brainstem-response-in-a-case-of-superior-semicircular-canal-dehiscence
#15
Bryan K Ward, Angela Wenzel, Eva K Ritzl, John P Carey
BACKGROUND: Superior canal dehiscence syndrome (SCDS) is a condition in which an abnormal communication between the superior semicircular canal and the middle cranial fossa causes patients to hear internal noises transmitted loudly to their affected ear as well as to experience vertigo with pressure changes or loud sounds. Patients with SCDS can have an elevated ratio of summating potential (SP) to action potential (AP) as measured by electrocochleography (ECochG). Changes in this ratio have been observed during surgical intervention to correct this abnormal communication...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28607211/consensus-statement-of-the-indian-academy-of-pediatrics-on-newborn-hearing-screening
#16
Abraham Paul, Chhaya Prasad, S S Kamath, Samir Dalwai, M K C Nair, Waheeda Pagarkar
JUSTIFICATION: Hearing impairment is one of the most critical sensory impairments with significant social and psychological consequences. Reported incidence of congenital hearing loss is 30 per 10,000 children. Evidence-based, standardized national guidelines are needed for professionals to screen for hearing impairment during the neonatal period. PROCESS: The meeting on formulation of national consensus guidelines on developmental disorders was organized by Indian Academy of Pediatrics in Mumbai, on 18th and 19th December, 2015...
June 4, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28599607/the-accuracy-of-objective-threshold-determination-at-low-frequencies-comparison-of-different-auditory-brainstem-response-abr-and-auditory-steady-state-response-assr-methods
#17
Jacqueline Frank, Izet Baljić, Sebastian Hoth, Dirk Eßer, Orlando Guntinas-Lichius
OBJECTIVE: The hearing threshold at 500 Hz was estimated using five methods which are suitable for the low frequency range: Low-Chirp BERA (LCBERA), Notched-noise BERA (NNBERA), Narrow band CE-Chirp BERA (NBCBERA) and Narrow band CE-Chirp ASSR (NBCASSR) (40/90 Hz). The slope of the discrimination function of each method was used for determination of the most efficient method. The threshold values were compared and the corresponding odds ratios (OR) were calculated. DESIGN: All methods were applied to each subject...
May 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28599539/the-effects-of-click-rate-on-the-auditory-brainstem-response-of-bottlenose-dolphins
#18
Robert F Burkard, James J Finneran, Jason Mulsow
Rate manipulations can be used to study adaptation processes in the auditory nerve and brainstem. For this reason, rate effects on the click-evoked auditory brainstem response (ABR) have been investigated in many mammals, including humans. In this study, click-evoked ABRs were obtained in eight bottlenose dolphins (Tursiops truncatus) while varying stimulus rate using both conventional averaging and maximum length sequences (MLSs), which allow disentangling ABRs that overlap in time and thus permit the study of adaptation at high rates...
May 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28599518/neural-representation-of-the-self-heard-biosonar-click-in-bottlenose-dolphins-tursiops-truncatus
#19
James J Finneran, Jason Mulsow, Dorian S Houser, Carolyn E Schlundt
The neural representation of the dolphin broadband biosonar click was investigated by measuring auditory brainstem responses (ABRs) to "self-heard" clicks masked with noise bursts having various high-pass cutoff frequencies. Narrowband ABRs were obtained by sequentially subtracting responses obtained with noise having lower high-pass cutoff frequencies from those obtained with noise having higher cutoff frequencies. For comparison to the biosonar data, ABRs were also measured in a passive listening experiment, where external clicks and masking noise were presented to the dolphins and narrowband ABRs were again derived using the subtractive high-pass noise technique...
May 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28597422/bnaabf2-a-bzip-transcription-factor-from-rapeseed-brassica-napus-l-enhances-drought-and-salt-tolerance-in-transgenic-arabidopsis
#20
Bi-Yan Zhao, Yu-Feng Hu, Juan-Juan Li, Xuan Yao, Ke-de Liu
BACKGROUND: Abiotic stresses such as drought and salt stresses have a negative effect on the growth and productivity of plants. Improvement of stress tolerance through genetic engineering in plants has been reported in intense studies. Transcription factors play vital roles in plant adaptation to stresses by regulating expression of a great deal of target genes. A family of Arabidopsis basic region leucine zipper (bZIP) transcription factors that can recognize and bind to the abscisic acid (ABA)-responsive elements (ABREs) in promoter is named as ABRE binding factors (ABFs)/ABRE binding proteins (AREBs)...
December 2016: Botanical Studies (Taipei, Taiwan)
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