Background: Voice acoustic analysis is important for objectively assessing voice production and diagnosing voice disorders.
Aim: This study aimed to investigate the sensitivity of various voice acoustic parameters in differentiating common voice pathology types.
Methods: Data from the publicly available Perceptual Voice Qualities Database were analyzed; the database includes recordings of participants with and without voice disorders.
Background: Triple-negative breast cancer (TNBC) corresponds to approximately 20% of all breast tumors, with a high propensity for metastasis and a poor prognosis. Because TNBC displays a high mutational load compared with other breast cancer types, a neoantigen-based immunotherapy strategy could be effective. One major bottleneck in the development of a neoantigen-based vaccine for TNBC is the selection of the best targets, that is, tumor-specific neoantigens which are presented at the surface of tumor cells and capable of eliciting robust immune responses.
View Article and Find Full Text PDFThe emergence of viral threats such as Ebola, ZIKA, and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) requires a rapid and efficient approach for elucidating mechanisms of pathogenesis and development of therapeutics. In this context, cell-free protein synthesis (CFPS) holds a promise to resolve the bottlenecks of multiplexed protein production and interaction analysis among host and pathogen proteins. Here, we applied a eukaryotic CFPS system based on extract (LTE) protein expression in combination with AlphaLISA proximity-based protein interaction technology to identify intraviral and viral-human protein interactions of SARS-CoV-2 virus that can potentially be targeted by the existing or novel antiviral therapeutics.
View Article and Find Full Text PDFGranulocyte colony-stimulating factor (G-CSF) biologics, such as pegfilgrastim, are a standard of care in supportive cancer treatment that are administered once per chemotherapy cycle to reduce the incidence of febrile neutropenia. The high cost of these biologics in the United States can be a limiting factor to accessing care; however, lower-cost pegfilgrastim biosimilars have been available for several years for patients requiring prophylaxis of febrile neutropenia. Different options for pegfilgrastim administration are also now available to accommodate specific patient preferences.
View Article and Find Full Text PDFJ Speech Lang Hear Res
August 2022
Background: Auditory-perceptual evaluation of dysphonic voice is an essential clinical activity that characterizes the nature of dysphonia and aids in planning its clinical management. Although there are multidimensional acoustic measures that correlate well with overall severity ratings, they tend to include measures that have only small or moderate correlations with individual voice characteristics frequently perceptually measured (e.g.
View Article and Find Full Text PDFBiological information processing networks rely on allosteric protein switches that dynamically interconvert biological signals. Construction of their artificial analogues is a central goal of synthetic biology and bioengineering. Receptor domain insertion is one of the leading methods for constructing chimeric protein switches.
View Article and Find Full Text PDFAllostery enables proteins to interconvert different biochemical signals and form complex metabolic and signaling networks. We hypothesize that circular permutation of proteins increases the probability of functional coupling of new N- and C- termini with the protein's active center through increased local structural disorder. To test this we construct a synthetically allosteric version of circular permutated NanoLuc luciferase that can be activated through ligand-induced intramolecular non-covalent cyclisation.
View Article and Find Full Text PDFThe purpose of this action research, scholarship of teaching and learning study was to develop and integrate effective, student-informed teaching methods for voice acoustics instruction in a graduate speech-language pathology voice disorders course. An online focus group was used to determine what aspects of voice acoustics to include in the course as well as how these aspects were to be covered. A blend of face-to-face, technology-assisted, and practice-based teaching/learning activities resulted from the focused group and were employed in the course.
View Article and Find Full Text PDFNatural evolution produced polypeptides that selectively recognize chemical entities and their polymers, ranging from ions to proteins and nucleic acids. Such selective interactions serve as entry points to biological signaling and metabolic pathways. The ability to engineer artificial versions of such entry points is a key goal of synthetic biology, bioengineering and bioelectronics.
View Article and Find Full Text PDFEnzymatic polypeptide proteolysis is a widespread and powerful biological control mechanism. Over the last few years, substantial progress has been made in creating artificial proteolytic systems where an input of choice modulates the protease activity and thereby the activity of its substrates. However, all proteolytic systems developed so far have relied on the direct proteolytic cleavage of their effectors.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
February 2022
Protein biosensors play an increasingly important role as reporters for research and clinical applications. Here we present an approach for the construction of fully integrated but modular electrochemical biosensors based on the principal component of glucose monitors PQQ-glucose dehydrogenase (PQQ-GDH). We designed allosterically regulated circular permutated variants of PQQ-GDH that show large (>10-fold) changes in enzymatic activity following intramolecular scaffolding of the newly generated N- and C termini by ligand binding domain/ligand complexes.
View Article and Find Full Text PDFPurpose: Time to travel to cardiac rehabilitation (CR) centers is a barrier to participation, and tertiary referral centers often care for patients living at a substantial distance. We sought to determine the impact of referring eligible patients to CR centers closer to home or workplace on overall participation rate.
Methods: An observational review was conducted in patients from a large cardiovascular program who were referred to CR (January 1, 2015, through December 31, 2016).
Objectives/hypothesis: The need for gender-affirming voice care has been increasing in the transgender population in the last decade. Currently, objective treatment outcome measurements are lacking to assess the success of these interventions. This study uses neural network models to predict binary gender from short audio samples of "male" and "female" voices.
View Article and Find Full Text PDFObjectives: To develop a perceptual voice quality database for educational and research purposes.
Study Design: Development of a database.
Methods: A total of 296 high quality audio file recordings consisting of sustained /a/ and /i/ vowels and sentences from Consensus Auditory-Perceptual Evaluation of Voice were made in clinical environments.
Objective: The purpose of this descriptive review was to document the current state of training to perform auditory-perceptual analysis as reported in the voice literature.
Methods: A review of the literature was performed.
Results: Thirty-six articles were included in the review.
In the field of communication sciences and disorders, some research and guidance exist on clinical fellowship supervision for the mentor; however, there is a dearth of literature on clinical fellowship supervision from the perspective of the clinical fellow. This article begins with why the clinical fellowship experience is necessary, and then discusses clinical fellow and mentor expectations and responsibilities, clinical fellow independence, mentor qualities, and issues related to the provision of feedback. The overall goal is to enhance clinical fellow mentors' knowledge base on the clinical fellowship experience through review of current literature on supervision and mentorship.
View Article and Find Full Text PDFCompetency-based education (CBE) is described and the reported advantages to CBE are discussed. The need for a stronger evidence base to support CBE is acknowledged. As we continue to develop this evidence base, the practices of (1) focusing on outcomes and (2) being flexible in the time needed for trainee mastery of competencies hold promise and are consistent with good pedagogy.
View Article and Find Full Text PDFThe ability of proteins to interconvert unrelated biochemical inputs and outputs underlays most energy and information processing in biology. A common conversion mechanism involves a conformational change of a protein receptor in response to a ligand binding or a covalent modification, leading to allosteric activity modulation of the effector domain. Designing such systems rationally is a central goal of synthetic biology and protein engineering.
View Article and Find Full Text PDFThe rapid spread of arthropod-borne Zika virus poses a serious public health threat that calls for effective ways of controlling and treating viral infection. This in turn necessitates better understanding of the mechanisms of virus assembly and its interaction with the host cells. In order to facilitate such efforts, we developed a new multihost expression vector pmCellFree that allows rapid and multiplexed production of ZIKV proteins in any in vitro translation system as well as in mammalian cells.
View Article and Find Full Text PDFBackground: The metabolic syndrome (MetS) is highly prevalent and associated with higher risk of diabetes and cardiovascular events. Exercise programs have been shown to improve components of MetS, but the optimal design of a structured exercise program for treatment of the MetS remains unclear.
Purpose: To assess the impact of different exercise programs on the MetS and its components.
Leukemia-associated antigens (LAAs) and HLA-I epitopes published previously have shown promise in inducing leukemia-specific T cell responses. However, the clinical responses are limited, and clinical effectiveness is yet to be achieved. Limitations, among others, being the LAAs themselves, the indirect approach to HLA-I epitope identification by reverse immunology, and the use of single or few LAAs and HLA-I epitopes, which limits the spectrum of inducible tumor-specific T cells.
View Article and Find Full Text PDFAs malignant transformation requires synchronization of growth-driving signaling (S) and metabolic (M) pathways, defining cancer-specific S-M interconnected networks (SMINs) could lead to better understanding of oncogenic processes. In a systems-biology approach, we developed a mathematical model for SMINs in mutated EGF receptor (EGFRvIII) compared to wild-type EGF receptor (EGFRwt) expressing glioblastoma multiforme (GBM). Starting with experimentally validated human protein-protein interactome data for S-M pathways, and incorporating proteomic data for EGFRvIII and EGFRwt GBM cells and patient transcriptomic data, we designed a dynamic model for EGFR-driven GBM-specific information flow.
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