200 research outputs found
A Vibrant Community of Readers, Authors and Reviewers: A Medical Editors' Necessity and a Challenge for Medical Education
info:eu-repo/semantics/publishedVersio
Anti-Inflammatory and Wound Healing Effect of Acupuncture in Treating Phonotraumatic Vocal Fold Pathologies
Speech-Language Pathology Session 2BConference Theme: Care of the Professional VoiceBackground: Acupuncture has been shown to be effective in bringing about improvements in benign
vocal lesions and vocal function (Yiu et al., 2006). The underlying biological mechanism of acupuncture
in the treatment of benign vocal pathologies is not fully understood yet. The improvement is, however,
not a result of stress reduction that is often attributed to acupuncture (Kwong & Yiu, 2010).
Objective: This study set out to investigate whether acupuncture would influence the anti-inflammatory
process in vocal fold lesion healing ...published_or_final_versio
Poly(Glycerol Adipate-co-ω-Pentadecalactone) Spray-Dried Microparticles as Sustained Release Carriers for Pulmonary Delivery
Purpose The aim of this work was to optimize biodegradable polyester poly(glycerol adipate-co-ω-pentadecalactone), PGA-co-PDL, microparticles as sustained release (SR) carriers for pulmonary drug delivery. Methods Microparticles were produced by spray drying directly from double emulsion with and without dispersibility enhancers ( L -arginine and L -leucine) (0.5–1.5%w/w) using sodium fluorescein (SF) as a model hydrophilic drug. Results Spray-dried microparticles without dispersibility enhancers exhibited aggregated powders leading to low fine particle fraction (%FPF) (28.79 ± 3.24), fine particle dose (FPD) (14.42 ± 1.57 μg), with a mass median aerodynamic diameter (MMAD) 2.86 ± 0.24 μm. However, L -leucine was significantly superior in enhancing the aerosolization performance ( L- arginine:%FPF 27.61 ± 4.49–26.57 ± 1.85; FPD 12.40 ± 0.99–19.54 ± 0.16 μg and MMAD 2.18 ± 0.35–2.98 ± 0.25 μm, L -leucine:%FPF 36.90 ± 3.6–43.38 ± 5.6; FPD 18.66 ± 2.90–21.58 ± 2.46 μg and MMAD 2.55 ± 0.03–3.68 ± 0.12 μm). Incorporating L -leucine (1.5%w/w) reduced the burst release (24.04 ± 3.87%) of SF compared to unmodified formulations (41.87 ± 2.46%), with both undergoing a square root of time (Higuchi’s pattern) dependent release. Comparing the toxicity profiles of PGA-co-PDL with L -leucine (1.5%w/w) (5 mg/ml) and poly(lactide-co-glycolide), (5 mg/ml) spray-dried microparticles in human bronchial epithelial 16HBE14o- cell lines, resulted in cell viability of 85.57 ± 5.44 and 60.66 ± 6.75%, respectively, after 72 h treatment. Conclusion The above data suggest that PGA-co-PDL may be a useful polymer for preparing SR microparticle carriers, together with dispersibility enhancers, for pulmonary delivery
Nanostructures for imaging, medical diagnostics and therapy
RESEARCHER ID D-9318-2017 (Juan Luis Paris de la Fuente)
ORCID 0000-0001-8950-283X (Juan Luis Paris de la Fuente)
RESEARCHER ID M-3378-2014 (María Vallet Regí)
ORCID 0000-0002-6104-4889 (María Vallet Regí)Depto. de Química en Ciencias FarmacéuticasFac. de FarmaciaTRUEEuropean Research CouncilMinisterio de Economía y Competitividad (MINECO)pu
Upconversion 32Nb2O5–10La2O3–16ZrO2 glass activated with Er3+/Yb3+ and dye sensitized solar cell application
A Patient-Specific in silico Model of Inflammation and Healing Tested in Acute Vocal Fold Injury
The development of personalized medicine is a primary objective of the medical community and increasingly also of funding and registration agencies. Modeling is generally perceived as a key enabling tool to target this goal. Agent-Based Models (ABMs) have previously been used to simulate inflammation at various scales up to the whole-organism level. We extended this approach to the case of a novel, patient-specific ABM that we generated for vocal fold inflammation, with the ultimate goal of identifying individually optimized treatments. ABM simulations reproduced trajectories of inflammatory mediators in laryngeal secretions of individuals subjected to experimental phonotrauma up to 4 hrs post-injury, and predicted the levels of inflammatory mediators 24 hrs post-injury. Subject-specific simulations also predicted different outcomes from behavioral treatment regimens to which subjects had not been exposed. We propose that this translational application of computational modeling could be used to design patient-specific therapies for the larynx, and will serve as a paradigm for future extension to other clinical domains
Heptametallic, Octupolar Nonlinear Optical Chromophores with Six Ferrocenyl Substituents
Acoustic and perceptual analysis of modal and falsetto registers in females with dysphonia
Modal and falsetto registers are the basic vocal qualities used in female speaking voices. The purpose of this study was to identify the frequency at which modal register changed to falsetto register and the frequency range of each modal and falsetto register produced under three loudness levels: soft, comfortable and loud phonations in normal and dysphonic speakers. These data provide information on the relationship between vocal registers. It is hypothesized that vocal pathologies affect the frequency at which register change from one mode to another mode. Fifteen dysphonic and 15 non-dysphonic females were assessed on their ability to produce tone series from the lowest to the highest frequency at soft, comfortable and loud phonations. Fourteen listeners served as judges to identify the first production of falsetto voice in each tone series. The first falsetto tone perceived was considered to represent the frequency at which the modal-falsetto register change occurred perceptually. The change from modal to falsetto register in the tone series occurred between G4 (360.74 Hz) and B4 (485.23-Hz) in the dysphonic group and between A4 (421.00-Hz) and B4 (476.13-Hz) in the non-dysphonic group among the three loudness levels. The results showed that the presence of dysphonia affected the production of vocal registers The dysphonic group demonstrated the modal-falsetto register change at a significantly lower frequency and reduced frequency range in the modal register than those of the non-dysphonic group in the soft and comfortable phonations. In producing falsetto register, the dysphonic group demonstrated reduced ability in producing falsetto register in soft and loud phonations when compared to the non-dysphonic group. Physiological explanations are used to account for the observations. © 2006 Taylor & Francis.link_to_subscribed_fulltex
Acoustic and perceptual analysis of modal and falsetto registers in females with dysphonia
Modal and falsetto registers are the basic vocal qualities used in female speaking voices. The purpose of this study was to identify the frequency at which modal register changed to falsetto register and the frequency range of each modal and falsetto register produced under three loudness levels: soft, comfortable and loud phonations in normal and dysphonic speakers. These data provide information on the relationship between vocal registers. It is hypothesized that vocal pathologies affect the frequency at which register change from one mode to another mode. Fifteen dysphonic and 15 non-dysphonic females were assessed on their ability to produce tone series from the lowest to the highest frequency at soft, comfortable and loud phonations. Fourteen listeners served as judges to identify the first production of falsetto voice in each tone series. The first falsetto tone perceived was considered to represent the frequency at which the modal-falsetto register change occurred perceptually. The change from modal to falsetto register in the tone series occurred between G4 (360.74 Hz) and B4 (485.23-Hz) in the dysphonic group and between A4 (421.00-Hz) and B4 (476.13-Hz) in the non-dysphonic group among the three loudness levels. The results showed that the presence of dysphonia affected the production of vocal registers The dysphonic group demonstrated the modal-falsetto register change at a significantly lower frequency and reduced frequency range in the modal register than those of the non-dysphonic group in the soft and comfortable phonations. In producing falsetto register, the dysphonic group demonstrated reduced ability in producing falsetto register in soft and loud phonations when compared to the non-dysphonic group. Physiological explanations are used to account for the observations. © 2006 Taylor & Francis.link_to_subscribed_fulltex
Investigation on skin-protective clothing that addresses needs of epidermolysis bullosa patients/children with epidermolysis bullosa and their parents
202208 bcfcAccepted ManuscriptSelf-fundedPublishe
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