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Atkin C, Crosby B, Dunn K, Price G, Marston E, Crawford C, O’Hara M, Morgan C, Levermore M, Gallier S, Modhwadia S, Attwood J, Perks S, Denniston AK, Gkoutos G, Dormer R, Rosser A, Ignatowicz A, Fanning H, Sapey E. Perceptions of anonymised data use and awareness of the NHS data opt-out amongst patients, carers and healthcare staff. Res Involv Engagem 2021; 7:40. [PMID: 34127076 PMCID: PMC8201435 DOI: 10.1186/s40900-021-00281-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 05/10/2021] [Indexed: 05/29/2023]
Abstract
BACKGROUND England operates a National Data Opt-Out (NDOO) for the secondary use of confidential health data for research and planning. We hypothesised that public awareness and support for the secondary use of health data and the NDOO would vary by participant demography and healthcare experience. We explored patient/public awareness and perceptions of secondary data use, grouping potential researchers into National Health Service (NHS), academia or commercial. We assessed awareness of the NDOO system amongst patients, carers, healthcare staff and the public. We co-developed recommendations to consider when sharing unconsented health data for research. METHODS A patient and public engagement program, co-created and including patient and public workshops, questionnaires and discussion groups regarding anonymised health data use. RESULTS There were 350 participants in total. Central concerns for health data use included unauthorised data re-use, the potential for discrimination and data sharing without patient benefit. 94% of respondents were happy for their data to be used for NHS research, 85% for academic research and 68% by health companies, but less than 50% for non-healthcare companies and opinions varied with demography and participant group. Questionnaires showed that knowledge of the NDOO was low, with 32% of all respondents, 53% of all NHS staff and 29% of all patients aware of the NDOO. Recommendations to guide unconsented secondary health data use included that health data use should benefit patients; data sharing decisions should involve patients/public. That data should remain in close proximity to health services with the principles of data minimisation applied. Further, that there should be transparency in secondary health data use, including publicly available lists of projects, summaries and benefits. Finally, organisations involved in data access decisions should participate in programmes to increase knowledge of the NDOO, to ensure public members were making informed choices about their own data. CONCLUSION The majority of participants in this study reported that the use of healthcare data for secondary purposes was acceptable when accessed by NHS. Academic and health-focused companies. However, awareness was limited, including of the NDOO. Further development of publicly-agreed recommendations for secondary health data use may improve both awareness and confidence in secondary health data use.
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Affiliation(s)
- C. Atkin
- PIONEER Hub in Acute Care, Institute of Inflammation and Ageing, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - B. Crosby
- PIONEER HDR-UK Data Hub in Acute Care, Institute of Inflammation and Ageing, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - K. Dunn
- HDR-UK Midlands Physical Site, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - G. Price
- Patient Involvement and Engagement Lead, PIONEER, London, UK
| | - E. Marston
- Research Support Services, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - C. Crawford
- Research and Development, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - M. O’Hara
- University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - C. Morgan
- Public author, B15 2GW Birmingham, UK
| | - M. Levermore
- Medical Devices Technology International Limited (MDTi), The KaCe Building, Victoria Passage, Wolverhampton, West Midlands WV1 4LG UK
- Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands UK
| | - S. Gallier
- Technical Director, PIONEER HDR-UK Data Hub in Acute Care, Institute of Inflammation and Ageing, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - S. Modhwadia
- PIONEER HDR-UK Data Hub in Acute Care, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - J. Attwood
- Informatics, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - S. Perks
- Informatics, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - A. K. Denniston
- Director of INSIGHT - the Health Data Research Hub for Eye Health, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, B15 2GW UK
- Centre for Regulatory Science and Innovation, Birmingham Health Partners, Birmingham, B15 2GW UK
- NIHR Biomedical Research Centre (Moorfields Eye Hospital NHS Foundation Trust and University College London), Birmingham, UK
| | - G. Gkoutos
- Alan Turing Institute, HDR-UK Associated Researcher, Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - R. Dormer
- Insignia Medical Systems Limited, Paterson House, Hatch Warren Lane, Basingstoke, Hampshire, RG22 4RA UK
| | - A. Rosser
- West Midlands Ambulance Service Foundation Trust, Millennium Point, Waterfront Business Park, Waterfront Way, Brierley Hill, West Midlands, DY5 1LX UK
| | - A. Ignatowicz
- Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - H. Fanning
- Research and Development, University Hospital Birmingham NHS Foundation Trust, University of Birmingham, Edgbaston, Birmingham, B15 2GW UK
| | - E. Sapey
- PIONEER, HDR-UK Health Data Research Hub in Acute Care, Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2GW UK
- Department of Acute Medicine, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2GW UK
- NIHR CRF, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2GW UK
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Crosby B, Deas CM. Repurposing medications for use in treating HIV infection: A focus on valproic acid as a latency-reversing agent. J Clin Pharm Ther 2018; 43:740-745. [PMID: 29959785 DOI: 10.1111/jcpt.12726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/31/2018] [Indexed: 01/18/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Combined antiretroviral therapy (ART) reduces human immunodeficiency virus type 1 (HIV-1) RNA plasma levels below the limit of detection. However, HIV-1 persists in latently infected CD4+ T cells, which is currently the barrier to curing HIV-1. Novel mechanisms are being explored to target HIV-1 latent reservoirs. The purpose of this review was to critically evaluate the available literature on innovative use of valproic acid (VPA) for the agent's therapeutic effects on reversing latent human immunodeficiency virus (HIV) reservoirs. METHODS A search of PubMed (1996-December 2017) and International Pharmaceutical Abstracts (1970-December 2017) was conducted using the MeSH terms HIV, valproic acid and latency. Free text searches included the terms latency-reversing agents, HIV therapy and valproic acid. RESULTS Six clinical trials and one case report were critically evaluated on VPA's therapeutic effects on reversing HIV reservoirs. Only one study reported that VPA therapy has a significant effect on reversing HIV-1 latent reservoirs; all other studies reviewed and did not demonstrate an appreciable effect of VPA on reversing HIV latent reservoirs. WHAT IS NEW AND CONCLUSION Current literature does not support the use of VPA as adjunctive therapy to reverse HIV-1 latent reservoirs. Sample sizes were small, and overall studies were not sufficiently powered. Further studies are needed to make informed conclusions on the use of VPA as an HIV-1 latency-reversing agent.
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Affiliation(s)
- B Crosby
- McWhorter School of Pharmacy, Samford University, Birmingham, AL, USA
| | - C M Deas
- McWhorter School of Pharmacy, Samford University, Birmingham, AL, USA
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McGavin MJ, Forsberg CW, Crosby B, Bell AW, Dignard D, Thomas DY. Structure of the cel-3 gene from Fibrobacter succinogenes S85 and characteristics of the encoded gene product, endoglucanase 3. J Bacteriol 1989; 171:5587-95. [PMID: 2676979 PMCID: PMC210401 DOI: 10.1128/jb.171.10.5587-5595.1989] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The cel-3 gene cloned from Fibrobacter succinogenes into Escherichia coli coded for the enzyme EG3, which exhibited both endoglucanase and cellobiosidase activities. The gene had an open reading frame of 1,974 base pairs, coding for a protein of 73.4 kilodaltons (kDa). However, the enzyme purified from the osmotic shock fluid of E. coli was 43 kDa. The amino terminus of the 43-kDa protein matched amino acid residue 266 of the protein coded for by the open reading frame, indicating proteolysis in E. coli. In addition to the 43-kDa protein, Western immunoblotting revealed a 94-kDa membranous form of the enzyme in E. coli and a single protein of 118 kDa in F. succinogenes. Thus, the purified protein appears to be a proteolytic degradation product of a native protein which was 94 kDa in E. coli and 118 kDa in F. succinogenes. The discrepancy between the molecular weight expected on the basis of the DNA sequence and the in vivo form may be due to anomalous migration during electrophoresis, to glycosylation of the native enzyme, or to fatty acyl substitution at the N terminus. One of two putative signal peptide cleavage sites bore a strong resemblance to known lipoprotein leader sequences. The purified 43-kDa peptide exhibited a high Km (53 mg/ml) for carboxymethyl cellulose but a low Km (3 to 4 mg/ml) for lichenan and barley beta-glucan. The enzyme hydrolyzed amorphous cellulose, and cellobiose and cellotriose were the major products of hydrolysis. Cellotriose, but not cellobiose, was cleaved by the enzyme. EG3 exhibited significant amino acid sequence homology with endoglucanase CelC from Clostridium thermocellum, and as with both CelA and CelC of C. thermocellum, it had a putative active site which could be aligned with the active site of hen egg white lysozyme at the highly conserved amino acid residues Asn-44 and Asp-52.
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Affiliation(s)
- M J McGavin
- Department of Microbiology, University of Guelph, Ontario, Canada
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Taylor KA, Crosby B, McGavin M, Forsberg CW, Thomas DY. Characteristics of the endoglucanase encoded by a cel gene from Bacteroides succinogenes expressed in Escherichia coli. Appl Environ Microbiol 1987; 53:41-6. [PMID: 3548592 PMCID: PMC203599 DOI: 10.1128/aem.53.1.41-46.1987] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A cel gene from Bacteroides succinogenes inserted into the vector pUC8 coded for an enzyme which exhibited high hydrolytic activity on carboxymethylcellulose, p-nitrophenylcellobioside, and lichenan and low activity on laminarin and xylan. The enzyme was not synthesized by the Escherichia coli host when cells were cultured in complex medium containing added glucose. In the absence of added glucose, the endoglucanase and cellobiosidase activities synthesized were partitioned into the periplasmic space during growth, and practically all enzyme was located in the periplasm when the stationary phase of growth was reached. The enzyme exhibited 17- and sixfold higher Km values for the hydrolysis of carboxymethylcellulose and lichenan, respectively, than did the extracellular endoglucanase complex from B. succinogenes. The Cel endoglucanase had a pH optimum similar to that of the B. succinogenes enzyme except that the range was narrower, and the Cel endoglucanase was more readily inactivated on exposure to high temperature, detergents, and certain metals. Its activity was stimulated by calcium and magnesium. Nondenaturing polyacrylamide gel electrophoresis at different acrylamide concentrations revealed the presence of three endoglucanase components, two with molecular weights of 43,000 and one with a molecular weight of 55,000.
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