11 results on '"Sly B"'
Search Results
2. A novel ontogenetic pathway in hybrid embryos between species with different modes of development.
- Author
-
Raff, E C, Popodi, E M, Sly, B J, Turner, F R, Villinski, J T, and Raff, R A
- Abstract
To investigate the bases for evolutionary changes in developmental mode, we fertilized eggs of a direct-developing sea urchin, Heliocidaris erythrogramma, with sperm from a closely related species, H. tuberculata, that undergoes indirect development via a feeding larva. The resulting hybrids completed development to form juvenile adult sea urchins. Hybrids exhibited restoration of feeding larval structures and paternal gene expression that have been lost in the evolution of the direct-developing maternal species. However, the developmental outcome of the hybrids was not a simple reversion to the paternal pluteus larval form. An unexpected result was that the ontogeny of the hybrids was distinct from either parental species. Early hybrid larvae exhibited a novel morphology similar to that of the dipleurula-type larva typical of other classes of echinoderms and considered to represent the ancestral echinoderm larval form. In the hybrid developmental program, therefore, both recent and ancient ancestral features were restored. That is, the hybrids exhibited features of the pluteus larval form that is present in both the paternal species and in the immediate common ancestor of the two species, but they also exhibited general developmental features of very distantly related echinoderms. Thus in the hybrids, the interaction of two genomes that normally encode two disparate developmental modes produces a novel but harmonious ontongeny.
- Published
- 1999
3. Availability of antidotes, antivenoms, and antitoxins in New Zealand hospital pharmacies
- Author
-
John Fountain, Sly, B., Holt, A., and Macdonell, S.
4. Using major events to increase social connections: the case of the Glasgow 2014 Host City Volunteer programme
- Author
-
Rogerson, Robert J., Nicholson, Rafaelle, Reid, F., Sly, B., Rogerson, Robert J., Nicholson, Rafaelle, Reid, F., and Sly, B.
- Abstract
Despite suggestions of the potential opportunity of using major events to generate wider social connections, most emphasis in event management research continues to be placed on future volunteering as a legacy from event volunteering. This paper examines the impact of a dedicated Host City event volunteer programme associated with the 2014 Commonwealth Games held in Glasgow, which sought to use this major sporting event to enhance social connectivity amongst the volunteers. This initiative, designed in response to the perceived failure of legacies arising from recruitment to the main event volunteer programme, sought to leverage social outcomes beyond that of volunteering. Although the quantitative and qualitative evidence gathered at the event time and three years later indicates that the programme failed to realise all its social ambitions, it nevertheless offers valuable insights into policy and practice around how event management can and needs to adapt to help delivery legacies, and to use emerging opportunities to leverage other benefits. This study points to the need for more attention to be given to examine how unanticipated circumstances ahead of events can alter legacy planning and create opportunities for social leveraging.
5. Blood glucose monitoring devices: current considerations.
- Author
-
Sly B and Taylor J
- Abstract
Measuring blood glucose concentrations via capillary (fingerprick) blood glucose monitoring or continuous (interstitial) glucose monitoring is an important aspect of management for many people with diabetes. Blood glucose monitoring informs patient self-management strategies, which can improve the patient's engagement in their own care and reduce barriers to achieving recommended blood glucose targets. Blood glucose monitoring also informs clinician-guided management plans. Compared to capillary blood glucose monitoring, continuous glucose monitoring in people using insulin significantly improves glycaemic metrics and is associated with improved patient-reported outcomes. Even with good glycaemic metrics, patients using continuous glucose monitoring should still have access to capillary blood glucose monitoring for correlation of hypoglycaemic readings when accuracy may be compromised or if there is a malfunction with the continuous blood glucose monitor., Competing Interests: Conflicts of interest: none declared, ((c) Therapeutic Guidelines.)
- Published
- 2023
- Full Text
- View/download PDF
6. Machine learning models for diabetes management in acute care using electronic medical records: A systematic review.
- Author
-
Kamel Rahimi A, Canfell OJ, Chan W, Sly B, Pole JD, Sullivan C, and Shrapnel S
- Abstract
Background: Machine learning (ML) is a subset of Artificial Intelligence (AI) that is used to predict and potentially prevent adverse patient outcomes. There is increasing interest in the application of these models in digital hospitals to improve clinical decision-making and chronic disease management, particularly for patients with diabetes. The potential of ML models using electronic medical records (EMR) to improve the clinical care of hospitalised patients with diabetes is currently unknown., Objective: The aim was to systematically identify and critically review the published literature examining the development and validation of ML models using EMR data for improving the care of hospitalised adult patients with diabetes., Methods: The Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) guidelines were followed. Four databases were searched (Embase, PubMed, IEEE and Web of Science) for studies published between January 2010 to January 2022. The reference lists of the eligible articles were manually searched. Articles that examined adults and both developed and validated ML models using EMR data were included. Studies conducted in primary care and community care settings were excluded. Studies were independently screened and data was extracted using Covidence® systematic review software. For data extraction and critical appraisal, the Checklist for Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies (CHARMS) was followed. Risk of bias was assessed using the Prediction model Risk Of Bias Assessment Tool (PROBAST). Quality of reporting was assessed by adherence to the Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis (TRIPOD) guideline. The IJMEDI checklist was followed to assess quality of ML models and the reproducibility of their outcomes. The external validation methodology of the studies was appraised., Results: Of the 1317 studies screened, twelve met inclusion criteria. Eight studies developed ML models to predict disglycaemic episodes for hospitalized patients with diabetes, one study developed a ML model to predict total insulin dosage, two studies predicted risk of readmission, and one study improved the prediction of hospital readmission for inpatients with diabetes. All included studies were heterogeneous with regard to ML types, cohort, input predictors, sample size, performance and validation metrics and clinical outcomes. Two studies adhered to the TRIPOD guideline. The methodological reporting of all the studies was evaluated to be at high risk of bias. The quality of ML models in all studies was assessed as poor. Robust external validation was not performed on any of the studies. No models were implemented or evaluated in routine clinical care., Conclusions: This review identified a limited number of ML models which were developed to improve inpatient management of diabetes. No ML models were implemented in real hospital settings. Future research needs to enhance the development, reporting and validation steps to enable ML models for integration into routine clinical care., (Copyright © 2022. Published by Elsevier B.V.)
- Published
- 2022
- Full Text
- View/download PDF
7. Digital interventions to improve safety and quality of inpatient diabetes management: A systematic review.
- Author
-
Sly B, Russell AW, and Sullivan C
- Subjects
- Electronic Health Records, Humans, Inpatients, Decision Support Systems, Clinical, Diabetes Mellitus drug therapy, Medical Order Entry Systems
- Abstract
Importance: Diabetes is common amongst hospitalised patients and contributes to increased length of stay and poorer outcomes. Digital transformation, particularly the implementation of electronic medical records (EMRs), is rapidly occurring across the healthcare sector and provides an opportunity to improve the safety and quality of inpatient diabetes care. Alongside this revolution has been a considerable and ongoing evolution of digital interventions to optimise care of inpatients with diabetes including optimisation of EMRs, digital clinical decision support systems (CDSS) and solutions utilising data visibility to allow targeted patient review., Objective: To systematically appraise the recent literature to determine which digitally-enabled interventions including EMR, CDSS and data visibility solutions improve the safety and quality of non-critical care inpatient diabetes management., Methods: Pubmed, Embase and Cochrane databases were searched for suitable articles. Selected articles underwent quality assessment and analysis with results grouped by intervention type., Results: 1202 articles were identified with 42 meeting inclusion criteria. Four key interventions were identified; computerised physician order entry (n = 4), clinician decision support systems (n = 21), EMR driven active case finding (data visibility solutions) and targeted patient review (n = 10) and multicomponent system interventions (n = 7). Studies reported on glucometric outcomes, evidence-based medication ordering including medication errors, and patient and user outcomes. An improvement in glucometric measures particularly mean blood glucose and proportion of target range blood glucose levels and rates of evidence-based insulin prescribing were consistently demonstrated., Conclusion: Digitally-enabled interventions utilised to improve quality and safety of inpatient diabetes care were heterogenous in design. The majority of studies across all intervention types reported positive effects for evidence-based prescribing and glucometric outcomes. There was less evidence for digital interventions reducing diabetes medication administration errors or impacting patient outcomes (length of stay)., (Crown Copyright © 2021. Published by Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
8. Severe type IV hiatal hernia secondary to congenital shortened esophagus.
- Author
-
Weller S, Powers C, Sly B, Parnes N, and Ciani MJ
- Subjects
- Congenital Abnormalities diagnosis, Congenital Abnormalities surgery, Esophagus embryology, Esophagus surgery, Humans, Esophagus abnormalities, Hernia, Hiatal etiology
- Abstract
In patients with severe type IV hiatal hernias, clinicians should consider congenital shortened esophagus. This article reviews the causes of shortened esophagus and its clinical manifestations.
- Published
- 2017
- Full Text
- View/download PDF
9. Availability of antidotes, antivenoms, and antitoxins in New Zealand hospital pharmacies.
- Author
-
Fountain JS, Sly B, Holt A, and MacDonell S
- Subjects
- Data Collection, New Zealand, Antidotes supply & distribution, Antitoxins, Antivenins, Pharmacy Service, Hospital statistics & numerical data
- Abstract
Aim: To assess the adequacy of the types and quantities of antidotes, antivenoms and antitoxins held by New Zealand hospital pharmacies., Methods: A list of 61 antidotes, antivenoms, antitoxins and their various forms was developed following literature review and consideration of national pharmaceutical listings. An Internet-accessible survey was then developed, validated and, during the period 28 February to 7 April 2014, sent to 24 hospital pharmacies nationally for completion. Results were assessed and compared with published guidelines for adequate stocking of antidotes in hospitals that provide emergency care., Results: The response rate for the survey was 100%. Wide variation in stock levels were reported with only N- acetylcysteine and octreotide held in adequate quantities by all hospitals to manage a single patient for 24 hours. While archaic compounds were still stocked, newer and more effective pharmaceuticals were not. The national replacement cost for expiring drugs was estimated at $171,024, with smaller, more isolated facilities facing the greatest expense and difficulty in achieving timely resupply., Conclusion: Shortcomings in the types and quantities of antidotes, antivenoms and antitoxins held by New Zealand hospital pharmacies were recognised. This situation may be improved through national rationalisation of pharmaceutical storage and supply, and implementation of a national antidote database.
- Published
- 2015
10. Modularity and dissociation in the evolution of gene expression territories in development.
- Author
-
Raff RA and Sly BJ
- Subjects
- Animals, Evolution, Molecular, Gene Expression, Sea Urchins genetics
- Abstract
Modularity is a salient feature of development and crucial to its evolution. This paper extends modularity to include the concept of gene expression territory, as established for sea urchin embryos. Territories provide a mechanism for partitioning of the cells of a rapidly developing embryo into functional units of a feeding larva. Territories exhibit the characteristics of modules. The paper asks if the embryo and the nonfeeding larva of the direct-developing sea urchin Heliocidaris erythrogramma are organized into gene expression territories, and if its territories correspond to the canonical territories of the pluteus. An analysis of cell lineage and gene expression data for H. erythrogramma shows that skeletogenic cell, coelomic, and vegetal plate gene expression territories are conserved, although they arise from cell lineages distinct from those of the pluteus, and the overall morphology of the larva differs from that of a pluteus. The ectoderm, as in indirect developers, is divided into territories. However, the oral ectodermal territory characteristic of the pluteus is absent in H. erythrogramma. Oral ectoderm is restored in hybrids of H. erythrogramma eggs fertilized by Heliocidaris tuberculata sperm. This indicates that embryonic modules evolve by changes in expression of dominant regulatory genes within territories and that entire modules can be eliminated in evolution of embryos.
- Published
- 2000
- Full Text
- View/download PDF
11. Apextrin, a novel extracellular protein associated with larval ectoderm evolution in Heliocidaris erythrogramma.
- Author
-
Haag ES, Sly BJ, Andrews ME, and Raff RA
- Subjects
- Amino Acid Sequence, Animals, Base Sequence, Biological Evolution, Cloning, Molecular, Immunohistochemistry, Larva, Molecular Sequence Data, RNA, Messenger metabolism, Recombinant Proteins genetics, Sequence Homology, Amino Acid, Ectoderm metabolism, Proteins genetics, Sea Urchins embryology
- Abstract
During the evolution of direct development in the sea urchin Heliocidaris erythrogramma major modifications occurred, which allowed the precocious formation of adult-specific structures and led to a novel larval body that surrounds these structures. The HeET-1 gene was isolated in a differential screen for transcripts enriched in the early embryos of H. erythrogramma relative to those of its indirect-developing congener, H. tuberculata. HeET-1 was unique among the three genes found in that no homologous transcript was detected in H. tuberculata total embryonic RNA blots. To verify this apparently extreme differential expression of the HeET-1 genes in Heliocidaris, we isolated the HeET-1 homologue from H. tuberculata genomic DNA and used it to probe blots of poly(A)+ RNA prepared from H. tuberculata embryos. It is expressed in H. tuberculata embryos at levels undetectable by this technique. The predicted amino acid sequence of HeET-1 suggested that it encodes a novel secreted protein. To assess the function of HeET-1, we raised polyclonal antisera to the HeET-1-encoded protein. We find that it is present in eggs in a type of secretory vesicle and that this maternal pool is gradually secreted after fertilization. As cells acquire apical-basal polarity in the blastula the protein becomes localized to the apical extracellular matrix, leading us to name the protein apextrin. The apical extracellular localization of apextrin is maintained in the columnar cells of the larval ectoderm until their internalization at metamorphosis. Ingressing mesenchyme cells rapidly endocytose apextrin upon leaving the vegetal plate. Comparison with fibropellin III, an apical lamina component, suggests that apextrin is an extracellular protein that is in tighter association with the plasma membrane than is the hyalin layer or apical lamina. We propose that apextrin is involved in apical cell adhesion and that its high level of expression may represent an adaptive cooption necessary for strengthening the large H. erythrogramma embryo., (Copyright 1999 Academic Press.)
- Published
- 1999
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.