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Lefebvre V, Leon Foun Lin R, Cole L, Cosset FL, Fogeron ML, Böckmann A. Do NSm Virulence Factors in the Bunyavirales Viral Order Originate from Gn Gene Duplication? Viruses 2024; 16:90. [PMID: 38257790 PMCID: PMC10819786 DOI: 10.3390/v16010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
One-third of the nine WHO shortlisted pathogens prioritized for research and development in public health emergencies belong to the Bunyavirales order. Several Bunyavirales species carry an NSm protein that acts as a virulence factor. We predicted the structures of these NSm proteins and unexpectedly found that in two families, their cytosolic domain was inferred to have a similar fold to that of the cytosolic domain of the viral envelope-forming glycoprotein N (Gncyto) encoded on the same genome fragment. We show that although the sequence identity between the NSmcyto and the Gncyto domains is low, the conservation of the two zinc finger-forming CysCysHisCys motifs explains the predicted structural conservation. Importantly, our predictions provide a first glimpse into the long-unknown structure of NSm. Also, these predictions suggest that NSm is the result of a gene duplication event in the Bunyavirales Nairoviridae and Peribunyaviridae families and that such events may be common in the recent evolutionary history of RNA viruses.
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Affiliation(s)
- Victor Lefebvre
- MMSB—Molecular Microbiology and Structural Biochemistry, Université de Lyon 1, CNRS UMR 5086, F-69367 Lyon, France; (V.L.); (R.L.F.L.)
| | - Ravy Leon Foun Lin
- MMSB—Molecular Microbiology and Structural Biochemistry, Université de Lyon 1, CNRS UMR 5086, F-69367 Lyon, France; (V.L.); (R.L.F.L.)
| | - Laura Cole
- MMSB—Molecular Microbiology and Structural Biochemistry, Université de Lyon 1, CNRS UMR 5086, F-69367 Lyon, France; (V.L.); (R.L.F.L.)
| | - François-Loïc Cosset
- CIRI—Centre International de Recherche en Infectiologie, Université de Lyon 1, ENS de Lyon, Inserm U1111, CNRS UMR 5308, F-69007 Lyon, France
| | - Marie-Laure Fogeron
- MMSB—Molecular Microbiology and Structural Biochemistry, Université de Lyon 1, CNRS UMR 5086, F-69367 Lyon, France; (V.L.); (R.L.F.L.)
| | - Anja Böckmann
- MMSB—Molecular Microbiology and Structural Biochemistry, Université de Lyon 1, CNRS UMR 5086, F-69367 Lyon, France; (V.L.); (R.L.F.L.)
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Mills WR, Howard S, Pitzen K, Smitherman J, Cole L, Wolfram J, Deane W, Sender S, Poltavski D. A Novel Home-Based Medication Management Program and Its Influence on Hospitalization Rates among Home Health Care Recipients. J Am Med Dir Assoc 2024; 25:155-157.e1. [PMID: 37989498 DOI: 10.1016/j.jamda.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 11/23/2023]
Abstract
Patients do not take their medicine as prescribed 50% of the time, and of medication-related hospital admissions in the United States, 33% to 69% are due to poor medication adherence, at a cost of approximately $100 billion a year. Continue CareRx (CCRx) is a novel home-based medication management program that includes adherence packaging alongside medication reconciliation, review, and education by clinicians. We hypothesized that home health patients receiving the CCRx service may have a lower hospitalization rate than control home health patients. Between May 1, 2021, and March 31, 2023, 113 home health patients whose insurance covered the program were enrolled in CCRx. Home health patients not eligible for the program due to a noncovered pharmacy insurance benefit made up the control group (n = 21,304), which was matched with the CCRx group on age range (45-99 years old) and gender (67% women). Hospitalization rate was calculated in both groups and compared using generalized estimating equations analysis. The control group had a total of 7015 hospitalizations during the study period during 2,128,738 total managed days, whereas the CCRx group had 21 hospitalizations during 23,622 total managed days. These translated into rates of 1203 hospitalizations per 1000 per year for the control group, and 324 hospitalizations per 1000 per year for the CCRx group. The results showed that there was a significant main effect of group in predicting individual annual hospitalization rate (Wald χ2 = 56.415, P < .01). Specifically, being in the control group was associated with a 43.42-fold increase in the likelihood of a higher hospitalization rate (95% Wald CI for odds ratios: 7.24-230.44). Home health recipients enrolled in CCRx experienced a 73.1% lower hospitalization rate than controls. Making the program more widely available to patients receiving home health care may present a significant opportunity to reduce hospitalizations in this group.
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Affiliation(s)
| | | | | | | | - Laura Cole
- BrightSpring Health Services, Louisville, KY, USA
| | | | | | - Susan Sender
- BrightSpring Health Services, Louisville, KY, USA
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Beeston D, Dirrig H, Cole L. The utility of clinicopathological findings and point-of-care ultrasound in increasing the index of suspicion of ureteral obstruction in azotaemic cats presenting to the emergency room. J Small Anim Pract 2023; 64:781-787. [PMID: 37565352 DOI: 10.1111/jsap.13661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 03/06/2023] [Accepted: 04/21/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVES Ureteral obstruction is a common post-renal cause of azotaemia in cats. The objective of this study was to describe clinicopathological and point-of-care ultrasound findings in azotaemic cats that may increase the index of suspicion of ureteral obstruction. MATERIALS AND METHODS A retrospective case-control study was conducted of azotaemic cats presenting to the emergency room of a referral teaching hospital. Cats were included if they were azotaemic and had point-of-care ultrasound and formal ultrasound performed. Cats were grouped into obstructed and non-obstructed groups based on formal specialist ultrasound and pyelography. Point-of-care ultrasound findings were described, including renal size and symmetry, renal pelvis dilation, perinephric fluid, and visualisation of the proximal ureter or calculi. Univariate analysis was performed to identify historical, biochemical and point-of-care ultrasound findings associated with ureteral obstruction before multivariate analysis. RESULTS One hundred twenty-two azotaemic cats met the inclusion criteria. Seventy-four cats were included in the obstructed azotaemic group and 48 cats in the non-obstructed azotaemic groups. Point-of-care ultrasound abnormalities were detected in 60 of 74 (81.1%) obstructed cats and 18 of 48 (37.5%) non-obstructed cats. Renal pelvis dilation (odds ratio 38.8; 95% confidence interval 2.9 to 515), hyporexia (odds ratio 5.9; 95% confidence interval 1.15 to 30.13), hypercalcaemia (odds ratio 16.6; 95% confidence interval 1.2 to 223.0) and hypokalaemia (odds ratio 21.7; 1.33 to 354.62) were more likely to be associated with ureteral obstruction than non-obstructive disease. CLINICAL SIGNIFICANCE Point-of-care ultrasound abnormalities are documented frequently in azotaemic cats with ureteral obstruction. Cats with renal pelvis dilation were 39 times more likely to have ureteral obstruction than non-obstructive acute kidney injury.
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Affiliation(s)
- D Beeston
- Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, Hertfordshire, AL9 7TA, UK
| | - H Dirrig
- Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, Hertfordshire, AL9 7TA, UK
| | - L Cole
- Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, Hertfordshire, AL9 7TA, UK
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McDonald C, Barfield D, Cole L. Assessing primary care veterinarians' use of and confidence in performing point-of-care ultrasound. Vet Rec 2023; 193:e3174. [PMID: 37455253 DOI: 10.1002/vetr.3174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/14/2023] [Accepted: 06/08/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Point-of-care ultrasound (POCUS) is gaining popularity in the veterinary field, but there is little information on operator confidence. METHODS A survey was distributed to primary care veterinarians (PCVs) via social media between May and July 2020. Details of participants' training in and use of POCUS were recorded. Participants' confidence in using thoracic and abdominal POCUS was also assessed using a five-point Likert scale. RESULTS Two hundred and one PCVs used POCUS, of which 32% reported using a non-standardised protocol. Fifty percent of PCVs were self-taught and 17.4% had attended a specific practical course. The median confidence score was 4 out of 5 (interquartile range [IQR] 2-5) for identifying abdominal abnormalities, irrespective of the training method. The median confidence score for thoracic abnormalities was 3 out of 5 (IQR 1-4) for those taught by a colleague or who were self-taught using journal articles or videos. LIMITATIONS The survey-based nature of the study relies on self-reporting and is therefore liable to recall bias. CONCLUSIONS PCVs' confidence in using POCUS is lacking, particularly with thoracic POCUS. Standardised practical training for PCVs, particularly in thoracic POCUS, would be beneficial. Future studies should explore how best to deliver this training.
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Affiliation(s)
- Charlotte McDonald
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, UK
| | - Dominic Barfield
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, UK
| | - Laura Cole
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, UK
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Samsi K, Orellana K, Cole L, Manthorpe J. Understanding factors influencing residential respite service use by carers of people living with dementia using Andersen's behavioural model of health services use: A qualitative study. Aging Ment Health 2023; 27:1946-1955. [PMID: 37010982 PMCID: PMC10511030 DOI: 10.1080/13607863.2023.2196254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/02/2023] [Indexed: 04/04/2023]
Abstract
OBJECTIVES Residential respite (RR) provides a valuable break for family carers, but little known about its offer, take-up or experiences of carers of people living with dementia. This paper aims to further understandings of factors influencing RR use. DESIGN RR stakeholder workshop and qualitative interviews. SETTING Stakeholder or living in the community in own home. PARTICIPANTS RR stakeholders (13); family carers with experience of RR, or had declined it, or were planning to use it for the first time (n = 36). METHODS Stakeholders participated in a workshop to discuss provision, models and funding of RR. Family carer interviews focused on expectations, experiences and outcomes of use of RR. Data were analysed thematically and mapped against Andersen's model of health service use. RESULTS Identifying need for RR does not necessarily transpire into use. Planning and ease of booking were crucial for carers, but many felt there was little support with this. Systemic factors concerning funding, planning and booking RR act as barriers to its use. CONCLUSION Findings highlight how systemic factors influence RR use. Discussing respite need in routine care planning or reviews may support carers and people living with dementia to consider RR, but system changes are needed to address barriers.
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Affiliation(s)
- Kritika Samsi
- NIHR Policy Research Unit for Health and Social Care Workforce, King’s College London, London, England
- NIHR Applied Research Collaboration South London, England, UK
| | - Katharine Orellana
- NIHR Policy Research Unit for Health and Social Care Workforce, King’s College London, London, England
- NIHR Applied Research Collaboration South London, England, UK
| | - Laura Cole
- NIHR Policy Research Unit for Health and Social Care Workforce, King’s College London, London, England
- Geller Institute of Ageing and Memory, University of West London, London, England
| | - Jill Manthorpe
- NIHR Policy Research Unit for Health and Social Care Workforce, King’s College London, London, England
- NIHR Applied Research Collaboration South London, England, UK
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Makafe GG, Cole L, Roberts A, Muncil S, Patwardhan A, Bernacki D, Chojnacki M, Weinrick B, Sheinerman F. A novel chemogenomic discovery platform identifies bioactive hits with rapid bactericidal activity against Mycobacteroides Abscessus. Tuberculosis (Edinb) 2023; 139:102317. [PMID: 36736037 DOI: 10.1016/j.tube.2023.102317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023]
Abstract
Mycobacteroides abscessus (M. ab) infections are innately resistant to most currently available antibiotics and present a growing, poorly addressed medical need. The existing treatment regimens are lengthy and produce inadequate outcomes for many patients. Importantly, most clinically used drugs and drug candidates against M. ab are either bacteriostatic, or only weakly bactericidal. New strategies exploring a broader chemical space are urgently needed, as innovative agents in development are scarce and hit rates in large unbiased screens against the mycobacterium have been discouragingly low. Here we present a computational chemogenomics-driven approach to discovery of novel antibacterials that effectively reveals drug-like compounds active against M. ab, paired with small sets of predicted molecular targets for the compounds. Several of the bioactive hits identified exhibited rapid bactericidal, including sterilizing, activity against the mycobacterium, indicating that there are currently unexploited chemically tractable molecular mechanisms for rapid sterilization of M. ab. Interestingly, starvation, which typically induces drug tolerance, sensitized M. ab to some of the compounds, resulting in potencies similar to those of drugs in clinical use. The presented drug discovery platform has potential to identify highly differentiated prototype anti-infective molecules and thereby contribute to development of regimens for shorter treatment and improved outcomes for non-tuberculous mycobacterial infections.
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Affiliation(s)
| | - Laura Cole
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA
| | - Alan Roberts
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA
| | - Shania Muncil
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA
| | | | - Derek Bernacki
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA
| | | | - Brian Weinrick
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA.
| | - Felix Sheinerman
- Trudeau Institute, 154 Algonquin Ave, Saranac Lake, NY, 12983, USA.
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Pandiri M, Bharadwaj H, Cole L. Urinary Bladder Squamous Cell Carcinoma In-Situ in a Background of Condyloma Acuminatum – A Diagnostic Challenge. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Introduction/Objective
Condyloma acuminatum is a rare lesion of the urinary bladder and urethra, usually associated with extensive anogenital condyloma acuminatum and immunosuppression. It is considered a risk factor for developing urinary bladder squamous cell carcinoma.
Methods/Case Report
We report a case of an 80-year-old male with a history of invasive squamous cell carcinoma of the anus, status-post chemoradiation ten years prior, and renal transplantation for end-stage renal disease 15 years prior. He presented with a lesion adjacent to the neoureteral orifice at the bladder dome. Biopsy revealed nonkeratinizing, hyperplastic papillary fronds of squamous epithelium with koilocytic change and viral atypia. The tumor was positive for p16, GATA3, and p40 and negative for high-risk and low-risk Human Papilloma Virus by in-situ hybridization. However, the morphology was consistent with squamous cell carcinoma in-situ arising in a background of condyloma acuminatum, which was concurred by an outside expert. Bladder condyloma acuminata are often challenging to recognize, given their extreme rarity and the possibility of negative low-risk and high-risk Human Papilloma Virus tests. Lack of prior history of anogenital condylomas can further obscure this diagnosis.
Results (if a Case Study enter NA)
NA.
Conclusion
This case raises awareness of condyloma acuminatum as a rare entity that needs to be considered in the differential diagnosis of bladder tumors, especially in immunosuppressed patients. Given that the treatment strategies for squamous cell carcinoma arising from condyloma acuminatum differ from that for urothelial carcinoma with squamous differentiation, distinguishing these lesions from one another is imperative.
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Affiliation(s)
- M Pandiri
- Pathology, UMass Chan medical school- Baystate Medical Center , Chicopee, Massachusetts , United States
| | - H Bharadwaj
- Pathology, UMass Chan medical school- Baystate Medical Center , Chicopee, Massachusetts , United States
| | - L Cole
- Pathology, UMass Chan medical school- Baystate Medical Center , Chicopee, Massachusetts , United States
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Abstract
The locus coeruleus (LC), a nucleus in the pons of the brainstem, plays a significant role in attention and cognitive control. Here, we use an adapted auditory oddball paradigm and measured the pupil dilation response, to provide a marker of LC activity in humans. In Experiment 1, we show event-related pupil responses to rare auditory events which were further elevated by task relevant. In Experiment 2, by asking participants to silently count the number of oddballs, we demonstrated that the task-relevance elevation was not a result of the generation or execution of the manual response. In Experiment 3, we observed two separate effects of reward on the pupil response. First, we found an overall increase in pupil area in the high compared to the low-reward blocks: a sustained effect reminiscent of the tonic changes that occur in LC. Second, we found elevated event-related pupil responses to behaviourally relevant stimuli in the high-reward condition compared with the low-reward condition, consistent with phasic changes in LC in response to a stimulus. These results highlight the complexity of the relationship between the pupil response and reward, and the inferred role of LC in both top-down and bottom-up cognitive control.
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Affiliation(s)
- Laura Cole
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Bristol Medical School, University of Bristol, Bristol, UK
| | - Stafford Lightman
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Bristol Medical School, University of Bristol, Bristol, UK
| | - Rosie Clark
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
| | - Iain D Gilchrist
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
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Abstract
OBJECTIVES Often perceived as a last resort, a care home move for a person living with dementia is often undertaken when all other options have been exhausted. Deciding the right or optimal time is to move remains an important question for many families.To investigate factors that are weighed up in deciding to make a care home move. METHOD Qualitative in-depth interviews with 21 family carers and 5 care home residents living with dementia in England. Thematic analysis was applied to all transcripts to extract key themes and sub-themes; a summation is provided here. RESULTS Participants emotionally recollected an accumulation of stressors, exhausting other options of care, a risk/benefit analysis, wishes of person living with dementia, and a readiness to move as indicators of when a 'tipping point' was reached. They also felt strongly that early planning, prior experience of care homes, understanding funding arrangements and having support with decision-making would help. CONCLUSION Deciding to move to a care home is complex, contextual and deeply personal. Early planning in the form of joining waiting lists, using day centres and respite services may help in creating relationships with intended care homes for the future. There is growing need for support with financial advice and funding arrangements, for both self- and publicly funded individuals.
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Affiliation(s)
- Kritika Samsi
- NIHR Policy Research Unit in Health & Social Care Workforce, King's College London, London, UK
| | - Laura Cole
- NIHR Policy Research Unit in Health & Social Care Workforce, King's College London, London, UK
| | - Jill Manthorpe
- NIHR Policy Research Unit in Health & Social Care Workforce, King's College London, London, UK
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Cole L, Bisquera A, Samsi K, Manthorpe J. Factors affecting dementia care practitioners' decision-making on moves to a care home for persons living with dementia: A factorial survey. Health Soc Care Community 2022; 30:e1651-e1661. [PMID: 34617362 DOI: 10.1111/hsc.13591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 08/27/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Deciding if and when might be the 'optimal' time for a person living with dementia to move to a care home is often difficult for the individual, family and practitioners. In this study, we describe the outcome of a factorial survey conducted with 100 dementia care practitioners (a frontline health or social care worker who works with people living with dementia) in England, which investigated factors used in deciding when a person living with dementia moves to a care home. Using findings from qualitative interviews with older people living with dementia, family carers, care home managers and social workers, we identified four factors that appeared to influence the decision to move to a care home: (1) Family carers' ability to support the person with daily activities, (2) amount of support provided by home care workers, (3) level of risk of harm and (4) the person living with dementia's wishes. These factors were then randomised within skeleton vignettes that told the story of a fictitious woman (Jane) living with dementia at home with her husband. Fifty-four variations of the vignettes were produced and randomly assigned to 100 surveys. A total of 100 volunteer dementia care practitioners (78% female, 54% over 50 years of age) received their own personalised online survey link via email and were asked to read each vignette and decide whether to suggest Jane (a) move to a care home or (b) continue living at home. Results indicated that Jane's wishes principally drove most dementia care practitioners' decision on whether to suggest a move to a care home or stay living at home (odds ratio = 6.5-19.5). Findings will inform a better understanding of the factors that contribute toward a decision to move to a care home and be of relevance to policy, practice, training and support.
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Affiliation(s)
- Laura Cole
- Geller Institute of Ageing and Memory, University of West London, London, UK
| | | | - Kritika Samsi
- NIHR Policy Research Unit in Health and Social Care Workforce, King's College London, London, UK
| | - Jill Manthorpe
- NIHR Policy Research Unit in Health and Social Care Workforce, King's College London, London, UK
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Trinder R, Greensmith T, Cole L, Cortellini S. The use of haemodialysis for the treatment of phenobarbitone intoxication 30 h after ingestion. Vet Record Case Reports 2022. [DOI: 10.1002/vrc2.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Richard Trinder
- Department of Clinical Science and Services The Royal Veterinary College University of London North Mymms Hertfordshire UK
| | - Thomas Greensmith
- Department of Clinical Science and Services The Royal Veterinary College University of London North Mymms Hertfordshire UK
| | - Laura Cole
- Department of Clinical Science and Services The Royal Veterinary College University of London North Mymms Hertfordshire UK
| | - Stefano Cortellini
- Department of Clinical Science and Services The Royal Veterinary College University of London North Mymms Hertfordshire UK
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Trinder R, Humm K, Phillips S, Cole L. The efficacy of vapocoolant spray for the improved tolerance of catheter pain in emergency patients. J Small Anim Pract 2022; 63:590-596. [PMID: 35508699 DOI: 10.1111/jsap.13504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This study aimed to determine if dogs and cats presenting as an emergency had improved tolerance of intravenous catheterisation following the application of vapocoolant spray when compared to a saline control. MATERIALS AND METHODS A randomised controlled trial of client-owned dogs and cats presenting as an emergency and requiring intravenous catheterisation was performed. Patient signalment and mentation score were recorded. All animals were restrained and had their fur clipped over the catheterisation site. They were then randomly allocated to either have a swab saturated with vapocoolant spray (treatment) or a swab saturated with saline (control) applied to the clipped area before intravenous catheterisation. The procedure was video recorded and a single blinded observer reviewed the recordings and assigned reaction scores (0 to 3) at four time points (initial restraint, limb handling, swab application and skin puncture). RESULTS Between October 2020 and January 2021, a total of 100 patients (79 dogs, 21 cats) were enrolled, with 50 in each group. No significant difference in species, age, breed, sex or mentation score was detected between the two groups. There was no significant difference in reaction scores between the groups at any time point with the exception of a significantly increased swab application reaction score in the treatment group compared to the control group. CLINICAL SIGNIFICANCE The indirect application of vapocoolant spray via a swab before catheterisation does not significantly reduce the reaction of dogs and cats to intravenous catheterisation in an emergency setting.
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Affiliation(s)
- R Trinder
- Department of Clinical Science and Services, The Royal Veterinary College, University of London, Hertfordshire, UK
| | - K Humm
- Department of Clinical Science and Services, The Royal Veterinary College, University of London, Hertfordshire, UK
| | - S Phillips
- Department of Clinical Science and Services, The Royal Veterinary College, University of London, Hertfordshire, UK
| | - L Cole
- Department of Clinical Science and Services, The Royal Veterinary College, University of London, Hertfordshire, UK
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Cole L, Drennan VM, Manthorpe J, Hatzidimitriadou E, Iliffe S. Experiences of intimate continence care and the impact on the family dyad relationship for people living at home with dementia and their co-resident family members. Dementia (London) 2022; 21:1556-1573. [PMID: 35446139 PMCID: PMC9234771 DOI: 10.1177/14713012221076667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The experience of providing/receiving intimate continence care between family members can be difficult and emotive. Often, for people living with dementia this seems an area of care overlooked by professionals. This study investigated the experiences of intimate continence care for people living with dementia and their family member (the family dyad), and whether they viewed this as impacting on their relationship. METHOD Face-to-face interviews were conducted at 6 monthly intervals over a 12-month period with 13 carers (all family members) and one person living with dementia (13 family dyads) in England. Interviews were recorded and transcribed. Analysis of the data was achieved using a descriptive phenomenological method. FINDINGS Carers' attitudes towards providing intimate continence care revealed a task-focused approach for some but feelings of disgust and distress for others. Four participants (including the participant living with dementia) reported that intimate continence care had strengthened their dyad relationship. However, some carers perceived the care and support received from health and social care practitioners to be insufficient, which placed extra stress on them and adversely affected their family dyad relationship. CONCLUSION Implications of the study suggest that integrated and effective continence care and support for people living with dementia and their carers could (1) maintain the quality of the family dyad relationship, (2) help keep the person living at home, delaying an unwanted move to a care home and (3) consequently improve overall quality of life for individuals in the family dyad. Assuring integrated and effective continence care should be a priority for service funders and quality assurance regulators.
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Affiliation(s)
- Laura Cole
- Geller Institute of Ageing & Memory, 7364University of West London, London, UK
| | - Vari M Drennan
- Centre for Health & Social Care Research, Kingston University & St. George's University of London, London, UK
| | - Jill Manthorpe
- NIHR Policy Research Unit in Health & Social Care Workforce, King's College London, London, UK
| | - Eleni Hatzidimitriadou
- Faculty of Medicine, Health and Social Care, 2238Canterbury Christ Church University, Kent, UK
| | - Steve Iliffe
- Department of Primary Care & Population Health, 4919University College London, London, UK
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14
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Kennedy K, Cole L, Witt M, Sealey M, Francese S. Forensic Discrimination of Differentially Sourced Animal Blood Using a Bottom-Up Proteomics Based MALDI MS Approach. Molecules 2022; 27:molecules27072039. [PMID: 35408438 PMCID: PMC9000818 DOI: 10.3390/molecules27072039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 01/31/2023] Open
Abstract
Recently published work has reported the development and application of a bottom-up proteomic approach to distinguish between human and animal blood (down to animal species level), by rapid screening using Matrix Assisted Laser Desorption Ionisation Mass Spectrometry (MALDI MS). In that study, it was additionally observed that intravenous animal blood exhibits different spectral profiles from blood collected within the animal chest cavity as well as from the diluted blood collected within packets of meat. In this follow-up study we explored the resulting hypothesis that, depending on how blood is shed or collected, protein biomarker profiles vary to the extent of systematically permitting a distinction between possible sources of blood (for example, flesh wound versus packaged meat). This intelligence may be important in reconstructing the dynamics of the crime. The combination of statistical analysis and tandem mass spectrometry has yielded additional animal blood markers as well as confirming the ability to correctly determine the animal species from which blood derived, regardless of the retailer selling it (amongst the five investigated). These data confirm the initial hypothesis and demonstrate the opportunity for the proteomics-MALDI combined approach to provide additional intelligence to the investigation of violent crimes when examining blood evidence.
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Affiliation(s)
- Katie Kennedy
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK; (K.K.); (L.C.)
| | - Laura Cole
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK; (K.K.); (L.C.)
| | - Matthias Witt
- Bruker Daltonics GmbH & Co. KG, 28359 Bremen, Germany;
| | - Mark Sealey
- Defence Science and Technology Laboratories (DSTL), Porton Down SP4 0JQ, UK;
| | - Simona Francese
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK; (K.K.); (L.C.)
- Correspondence:
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15
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Bury CS, Heaton C, Cole L, McColm R, Francese S. Exploring the problem of determining human age from fingermarks using MALDI MS-machine learning combined approaches. Anal Methods 2022; 14:789-797. [PMID: 35156963 DOI: 10.1039/d1ay02002a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
For over a century fingerprints have been predominantly used as a means of biometric identification. Notwithstanding, the unique pattern of lines that can contribute to identifying a suspect is made up of molecules originating from touch chemistry (contaminants) as well as from within the body. It is the latter class of molecules that could provide additional information about a suspect, such as lifestyle, as well as physiological, pharmacological and pathological states. An example of the physiological state (and semi-biometric information) is the sex of an individual; recent investigations have demonstrated the opportunity to determine the sex of an individual with an 86% accuracy of prediction based on the peptidic/protein profile of their fingerprints. In the study presented here, the first of its kind, a range of supervised learning predictive methods have been evaluated to explore the depth of the issue connected to human age determination from fingermarks exploiting again the differential presence of peptides and small proteins. A number of observations could be made providing (i) an understanding of the more appropriate study design for this kind of investigation, (ii) the most promising prediction model to test within future work and (iii) the deeper issues relating to this type of determination and concerning a mismatch between chronological and biological ages. Particularly resolving point (iii) is crucial to the success in determining the age of an individual from the molecular composition of their fingermark.
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Affiliation(s)
- C S Bury
- Medicines Catapult Discovery, Manchester, UK
| | - C Heaton
- Sheffield Hallam University, Biomolecular Sciences Research Centre, Sheffield, UK.
| | - L Cole
- Sheffield Hallam University, Biomolecular Sciences Research Centre, Sheffield, UK.
| | - R McColm
- Defense, Science and Technology Laboratory, Porton Down, UK
| | - S Francese
- Sheffield Hallam University, Biomolecular Sciences Research Centre, Sheffield, UK.
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16
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Fogeron ML, Lecoq L, Cole L, Montserret R, David G, Page A, Delolme F, Nassal M, Böckmann A. Phosphorylation of the Hepatitis B Virus Large Envelope Protein. Front Mol Biosci 2022; 8:821755. [PMID: 35282608 PMCID: PMC8904964 DOI: 10.3389/fmolb.2021.821755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/22/2021] [Indexed: 01/05/2023] Open
Abstract
We here establish the phosphorylation sites in the human hepatitis B virus (HBV) large envelope protein (L). L is involved in several functionally important interactions in the viral life cycle, including with the HBV cellular receptor, HBV capsid, Hsc70 chaperone, and cellular membranes during fusion. We have recently shown that cell-free synthesis of the homologous L protein of duck HBV in wheat germ extract results in very similar phosphorylation events to those previously observed in animal cells. Here, we used mass spectrometry and NMR to establish the phosphorylation patterns of human HBV L protein produced by both in vitro cell-free synthesis and in E. coli with the co-expression of the human MAPK14 kinase. While in the avian virus the phosphorylation of L has been shown to be dispensable for infectivity, the identified locations in the human virus protein, both in the PreS1 and PreS2 domains, raise the intriguing possibility that they might play a functional role, since they are found at strategic sites predicted to be involved in L interactions. This would warrant the further investigation of a possible function in virion formation or cell entry.
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Affiliation(s)
- Marie-Laure Fogeron
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Lauriane Lecoq
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Laura Cole
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Roland Montserret
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Guillaume David
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Adeline Page
- Protein Science Facility, SFR BioSciences CNRS UAR 3444, Inserm US8, UCBL, ENS de Lyon, Lyon, France
| | - Frédéric Delolme
- Protein Science Facility, SFR BioSciences CNRS UAR 3444, Inserm US8, UCBL, ENS de Lyon, Lyon, France
| | - Michael Nassal
- Department of Medicine II / Molecular Biology, Medical Center, University Hospital Freiburg, University of Freiburg, Freiburg im Breisgau, Germany
| | - Anja Böckmann
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
- *Correspondence: Anja Böckmann,
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17
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Samsi K, Cole L, Orellana K, Manthorpe J. Is it worth it? Carers' views and expectations of residential respite for people living with dementia during and beyond the COVID-19 pandemic. Int J Geriatr Psychiatry 2022; 37:10.1002/gps.5680. [PMID: 35064684 PMCID: PMC9015269 DOI: 10.1002/gps.5680] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/21/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVES The Covid-19 pandemic has taken a heavy toll on many people living with dementia and carers. Caring for a person living with dementia at home with limited avenues for support and a break challenged many carers. Care homes in England closed to visitors, with very few offering opportunities for a short-stay. We investigated impact of Covid-19 on views and expectations of carers of people living with dementia about residential respite. METHODS/DESIGN Qualitative interviews with 35 carers were conducted March-December 2020: 30 women and 5 men, with ages ranging 30-83 years. Interviews explored experiences, views of residential respite, and expectations post-Covid. Data were thematically analysed and salient concepts were drawn out and discussed within the research team and study advisers. RESULTS Three themes were identified in transcripts, relating to impact of Covid-19 on views and expectations of respite: (1) Carers described regularly negotiating risks and stresses of Covid, weighing up how to prevent infection and changing family arrangements to facilitate caring; (2) Carers were balancing different needs, prioritising needs of their relatives while bearing the impact of cumulative caregiving responsibilities. (3) Uncertainty about future residential respite continued, in terms of availability, ongoing restrictions and trustworthy information sources. CONCLUSIONS Residential respite is a positive, acceptable option for some carers to get a break from caring. Covid-19 may have heighted some of caregiving stressors and there may be an increased need for a break. Views of care homes developed during the pandemic suggest that individual confidence to use respite may need to be rebuilt.
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Affiliation(s)
- Kritika Samsi
- NIHR Policy Research Unit in Health and Social Care WorkforceKing's College LondonLondonUK
| | - Laura Cole
- Geller Institute of Ageing and MemoryUniversity of West LondonLondonUK
| | - Katharine Orellana
- NIHR Policy Research Unit in Health and Social Care WorkforceKing's College LondonLondonUK
| | - Jill Manthorpe
- NIHR Policy Research Unit in Health and Social Care WorkforceKing's College LondonLondonUK
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18
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Cole L, Humm K, Dirrig H. Focused Ultrasound Examination of Canine and Feline Emergency Urinary Tract Disorders. Vet Clin North Am Small Anim Pract 2021; 51:1233-1248. [PMID: 34531072 DOI: 10.1016/j.cvsm.2021.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This article discusses the usefulness of ultrasound examinations in the management of the patient with an emergency urinary tract disorder. It discusses the use of previously described point-of-care ultrasound protocols such as the abdominal focused assessment with sonography for trauma, triage, and tracking protocol in the unstable azotemic patient. Point-of-care ultrasound examination can help direct investigations and expedite the diagnosis of specific causes of azotemia. The limitations of point-of-care ultrasound assessment of the kidneys, ureter, bladder, and urethra are also addressed, emphasizing that point-of-care ultrasound examination should complement and not replace a complete urinary tract ultrasound examination.
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Affiliation(s)
- Laura Cole
- Clinical Science and Services, The Royal Veterinary College, The University of London, Hawkshead Lane, Hatfield, AL9 7TA.
| | - Karen Humm
- Clinical Science and Services, The Royal Veterinary College, The University of London, Hawkshead Lane, Hatfield, AL9 7TA
| | - Helen Dirrig
- Clinical Science and Services, The Royal Veterinary College, The University of London, Hawkshead Lane, Hatfield, AL9 7TA
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19
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Kereliuk SM, Agarwal P, Brawerman G, Cole L, Xiang B, Fonseca M, Hatch G, McGavock JM, Dolinsky V. Abstract MP237: Multi-omics Profiling Reveals Stearoylcarnitine As A Novel Biomarker Of Cardiometabolic Disease Development In Rat Offspring Exposed To Gestational Diabetes. Circ Res 2021. [DOI: 10.1161/res.129.suppl_1.mp237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Through unknown mechanisms, fetal exposure to gestational diabetes mellitus (GDM) increases the risk for cardiovascular disease development later in life. We hypothesize that fetal exposure to GDM alters offspring cardiomyocyte metabolism and left ventricular (LV) function with age. To induce GDM, female rats were fed a high fat (45% kcal) and sucrose diet prior to mating, throughout pregnancy and lactation. Lean controls received a low fat (10% kcal) diet. Fetal rat ventricular cardiomyocytes (FRVC) were isolated from e20 offspring for U-13C glucose metabolic flux analysis, mitochondrial respiration and calcium handling. The cardiac transcriptome and metabolome were measured in 3-month old offspring. LV morphology and function was assessed in the offspring from e18 to 12-months of age by transthoracic ultrasound. Offspring exposed to GDM exhibited increased LV posterior wall thickness and impaired LV filling across their life course (fetal to 12-months of age; p<0.05). Consistent with the development of diastolic dysfunction in vivo, alterations in calcium flux and sarcoplasmic reticulum-dependent calcium re-uptake (1.5 and 1.6-fold greater, respectively) were observed in FRVC isolated from GDM offspring (p<0.05). When FRVC were treated with isoproterenol, U-13C glucose metabolic flux through glycolysis and the citric acid cycle was reduced in GDM offspring, compared to Lean controls. In 3-month old GDM offspring serum and cardiac metabolomics revealed an altered acylcarnitine profile, with specific elevation in long chain acylcarnitine species including stearoylcarnitine. Alterations in the metabolome corresponded to changes in gene expression patterns identified by RNA-Seq associated with glucose metabolism and fatty acid transport pathways (e.g.
Irs2, Slc2a4, Pfkfb2, Pdk4
and
Cpt1a).
These alterations corresponded with mitochondrial dysfunction, impaired cardiomyocyte metabolic flux and contractility, in concert with LV hypertrophy and diastolic dysfunction in the rat offspring. Multi-omics profiling reveals stearoylcarnitine as a novel biomarker and implicates mitochondrial oxidative metabolism as a mechanism that links early-life GDM exposure to the development of cardiovascular disease later in life.
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Affiliation(s)
| | | | | | | | - Bo Xiang
- Univ of Manitoba, Winnipeg, Canada
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20
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Heaton C, Witt M, Cole L, Eyre J, Tazzyman S, McColm R, Francese S. Detection and mapping of haemoglobin variants in blood fingermarks by MALDI MS for suspect "profiling". Analyst 2021; 146:4290-4302. [PMID: 34105523 DOI: 10.1039/d1an00578b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Over the past seven years Matrix Assisted Laser Desorption Ionisation Mass Spectrometry Profiling (MALDI MSP) and Imaging (MALDI MSI) have proven to be feasible tools for the detection of blood and its provenance in stains and fingermarks. However, whilst this capability as a confirmatory test addresses the primary questions at the scene of a violent crime, additional intelligence recoverable from blood can also prove important for investigations. A DNA profile is the most obvious and important example of such intelligence; however, it is not always suitable for identification purposes, depending on quantity, age and environmental conditions. Proteins are much more stable and determining the presence of haemoglobin variants in blood recovered at a crime scene may provide associative and possibly corroborating evidence on the presence of an individual at a particular location. This evidence gains more incriminatory value, the lower the incidence of the variant in a certain geographical area or population and may contribute to narrowing down the pool of suspects. In this study, a MALDI based mass spectrometric method has been developed and tested on six haemoglobin variants for their fast and reliable identification and mapping in blood fingermarks.
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Affiliation(s)
- Cameron Heaton
- Biomolecular Science Research Centre, Centre for Mass Spectrometry Imaging, Sheffield Hallam University, Sheffield, UK.
| | | | - Laura Cole
- Biomolecular Science Research Centre, Centre for Mass Spectrometry Imaging, Sheffield Hallam University, Sheffield, UK.
| | - Jason Eyre
- Sheffield Teaching Hospitals, Sheffield, UK
| | | | - Richard McColm
- Defence Science and Technology Laboratory, Porton Down, UK
| | - Simona Francese
- Biomolecular Science Research Centre, Centre for Mass Spectrometry Imaging, Sheffield Hallam University, Sheffield, UK.
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21
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Altincekic N, Korn SM, Qureshi NS, Dujardin M, Ninot-Pedrosa M, Abele R, Abi Saad MJ, Alfano C, Almeida FCL, Alshamleh I, de Amorim GC, Anderson TK, Anobom CD, Anorma C, Bains JK, Bax A, Blackledge M, Blechar J, Böckmann A, Brigandat L, Bula A, Bütikofer M, Camacho-Zarco AR, Carlomagno T, Caruso IP, Ceylan B, Chaikuad A, Chu F, Cole L, Crosby MG, de Jesus V, Dhamotharan K, Felli IC, Ferner J, Fleischmann Y, Fogeron ML, Fourkiotis NK, Fuks C, Fürtig B, Gallo A, Gande SL, Gerez JA, Ghosh D, Gomes-Neto F, Gorbatyuk O, Guseva S, Hacker C, Häfner S, Hao B, Hargittay B, Henzler-Wildman K, Hoch JC, Hohmann KF, Hutchison MT, Jaudzems K, Jović K, Kaderli J, Kalniņš G, Kaņepe I, Kirchdoerfer RN, Kirkpatrick J, Knapp S, Krishnathas R, Kutz F, zur Lage S, Lambertz R, Lang A, Laurents D, Lecoq L, Linhard V, Löhr F, Malki A, Bessa LM, Martin RW, Matzel T, Maurin D, McNutt SW, Mebus-Antunes NC, Meier BH, Meiser N, Mompeán M, Monaca E, Montserret R, Mariño Perez L, Moser C, Muhle-Goll C, Neves-Martins TC, Ni X, Norton-Baker B, Pierattelli R, Pontoriero L, Pustovalova Y, Ohlenschläger O, Orts J, Da Poian AT, Pyper DJ, Richter C, Riek R, Rienstra CM, Robertson A, Pinheiro AS, Sabbatella R, Salvi N, Saxena K, Schulte L, Schiavina M, Schwalbe H, Silber M, Almeida MDS, Sprague-Piercy MA, Spyroulias GA, Sreeramulu S, Tants JN, Tārs K, Torres F, Töws S, Treviño MÁ, Trucks S, Tsika AC, Varga K, Wang Y, Weber ME, Weigand JE, Wiedemann C, Wirmer-Bartoschek J, Wirtz Martin MA, Zehnder J, Hengesbach M, Schlundt A. Large-Scale Recombinant Production of the SARS-CoV-2 Proteome for High-Throughput and Structural Biology Applications. Front Mol Biosci 2021; 8:653148. [PMID: 34041264 PMCID: PMC8141814 DOI: 10.3389/fmolb.2021.653148] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/04/2021] [Indexed: 01/18/2023] Open
Abstract
The highly infectious disease COVID-19 caused by the Betacoronavirus SARS-CoV-2 poses a severe threat to humanity and demands the redirection of scientific efforts and criteria to organized research projects. The international COVID19-NMR consortium seeks to provide such new approaches by gathering scientific expertise worldwide. In particular, making available viral proteins and RNAs will pave the way to understanding the SARS-CoV-2 molecular components in detail. The research in COVID19-NMR and the resources provided through the consortium are fully disclosed to accelerate access and exploitation. NMR investigations of the viral molecular components are designated to provide the essential basis for further work, including macromolecular interaction studies and high-throughput drug screening. Here, we present the extensive catalog of a holistic SARS-CoV-2 protein preparation approach based on the consortium's collective efforts. We provide protocols for the large-scale production of more than 80% of all SARS-CoV-2 proteins or essential parts of them. Several of the proteins were produced in more than one laboratory, demonstrating the high interoperability between NMR groups worldwide. For the majority of proteins, we can produce isotope-labeled samples of HSQC-grade. Together with several NMR chemical shift assignments made publicly available on covid19-nmr.com, we here provide highly valuable resources for the production of SARS-CoV-2 proteins in isotope-labeled form.
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Affiliation(s)
- Nadide Altincekic
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Sophie Marianne Korn
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Nusrat Shahin Qureshi
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Marie Dujardin
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Martí Ninot-Pedrosa
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Rupert Abele
- Institute for Biochemistry, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Marie Jose Abi Saad
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Caterina Alfano
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, Palermo, Italy
| | - Fabio C. L. Almeida
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Islam Alshamleh
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Gisele Cardoso de Amorim
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Multidisciplinary Center for Research in Biology (NUMPEX), Campus Duque de Caxias Federal University of Rio de Janeiro, Duque de Caxias, Brazil
| | - Thomas K. Anderson
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, WI, United States
| | - Cristiane D. Anobom
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Chelsea Anorma
- Department of Chemistry, University of California, Irvine, CA, United States
| | - Jasleen Kaur Bains
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Adriaan Bax
- LCP, NIDDK, NIH, Bethesda, MD, United States
| | | | - Julius Blechar
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Anja Böckmann
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Louis Brigandat
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Anna Bula
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Matthias Bütikofer
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | | | - Teresa Carlomagno
- BMWZ and Institute of Organic Chemistry, Leibniz University Hannover, Hannover, Germany
- Group of NMR-Based Structural Chemistry, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Icaro Putinhon Caruso
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Multiuser Center for Biomolecular Innovation (CMIB), Department of Physics, São Paulo State University (UNESP), São José do Rio Preto, Brazil
| | - Betül Ceylan
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Apirat Chaikuad
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt am Main, Germany
- Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Frankfurt am Main, Germany
| | - Feixia Chu
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, United States
| | - Laura Cole
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Marquise G. Crosby
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, United States
| | - Vanessa de Jesus
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Karthikeyan Dhamotharan
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Isabella C. Felli
- Magnetic Resonance Centre (CERM), University of Florence, Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Italy
| | - Jan Ferner
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Yanick Fleischmann
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Marie-Laure Fogeron
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | | | - Christin Fuks
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Boris Fürtig
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Angelo Gallo
- Department of Pharmacy, University of Patras, Patras, Greece
| | - Santosh L. Gande
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Juan Atilio Gerez
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Dhiman Ghosh
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Francisco Gomes-Neto
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Oksana Gorbatyuk
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, CT, United States
| | | | | | - Sabine Häfner
- Leibniz Institute on Aging—Fritz Lipmann Institute (FLI), Jena, Germany
| | - Bing Hao
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, CT, United States
| | - Bruno Hargittay
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - K. Henzler-Wildman
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, WI, United States
| | - Jeffrey C. Hoch
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, CT, United States
| | - Katharina F. Hohmann
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Marie T. Hutchison
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | | | - Katarina Jović
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, United States
| | - Janina Kaderli
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Gints Kalniņš
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Iveta Kaņepe
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Robert N. Kirchdoerfer
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, WI, United States
| | - John Kirkpatrick
- BMWZ and Institute of Organic Chemistry, Leibniz University Hannover, Hannover, Germany
- Group of NMR-Based Structural Chemistry, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Stefan Knapp
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt am Main, Germany
- Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Frankfurt am Main, Germany
| | - Robin Krishnathas
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Felicitas Kutz
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Susanne zur Lage
- Group of NMR-Based Structural Chemistry, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Roderick Lambertz
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Andras Lang
- Leibniz Institute on Aging—Fritz Lipmann Institute (FLI), Jena, Germany
| | - Douglas Laurents
- “Rocasolano” Institute for Physical Chemistry (IQFR), Spanish National Research Council (CSIC), Madrid, Spain
| | - Lauriane Lecoq
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | - Verena Linhard
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Frank Löhr
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute of Biophysical Chemistry, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Anas Malki
- Univ. Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France
| | | | - Rachel W. Martin
- Department of Chemistry, University of California, Irvine, CA, United States
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, United States
| | - Tobias Matzel
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Damien Maurin
- Univ. Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France
| | - Seth W. McNutt
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, United States
| | - Nathane Cunha Mebus-Antunes
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Beat H. Meier
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Nathalie Meiser
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Miguel Mompeán
- “Rocasolano” Institute for Physical Chemistry (IQFR), Spanish National Research Council (CSIC), Madrid, Spain
| | - Elisa Monaca
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, Palermo, Italy
| | - Roland Montserret
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS/Lyon University, Lyon, France
| | | | - Celine Moser
- IBG-4, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | | | - Thais Cristtina Neves-Martins
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Xiamonin Ni
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt am Main, Germany
- Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Frankfurt am Main, Germany
| | - Brenna Norton-Baker
- Department of Chemistry, University of California, Irvine, CA, United States
| | - Roberta Pierattelli
- Magnetic Resonance Centre (CERM), University of Florence, Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Italy
| | - Letizia Pontoriero
- Magnetic Resonance Centre (CERM), University of Florence, Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Italy
| | - Yulia Pustovalova
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, CT, United States
| | | | - Julien Orts
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Andrea T. Da Poian
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Dennis J. Pyper
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Christian Richter
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Roland Riek
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Chad M. Rienstra
- Department of Biochemistry and National Magnetic Resonance Facility at Madison, University of Wisconsin-Madison, Madison, WI, United States
| | | | - Anderson S. Pinheiro
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Nicola Salvi
- Univ. Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France
| | - Krishna Saxena
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Linda Schulte
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Marco Schiavina
- Magnetic Resonance Centre (CERM), University of Florence, Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Italy
| | - Harald Schwalbe
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Mara Silber
- IBG-4, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Marcius da Silva Almeida
- National Center of Nuclear Magnetic Resonance (CNRMN, CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marc A. Sprague-Piercy
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, United States
| | | | - Sridhar Sreeramulu
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jan-Niklas Tants
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Kaspars Tārs
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Felix Torres
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Sabrina Töws
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Miguel Á. Treviño
- “Rocasolano” Institute for Physical Chemistry (IQFR), Spanish National Research Council (CSIC), Madrid, Spain
| | - Sven Trucks
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | | | - Krisztina Varga
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, United States
| | - Ying Wang
- BMWZ and Institute of Organic Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Marco E. Weber
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Julia E. Weigand
- Department of Biology, Technical University of Darmstadt, Darmstadt, Germany
| | - Christoph Wiedemann
- Institute of Biochemistry and Biotechnology, Charles Tanford Protein Centre, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany
| | - Julia Wirmer-Bartoschek
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Maria Alexandra Wirtz Martin
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Johannes Zehnder
- Swiss Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
| | - Martin Hengesbach
- Institute for Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Andreas Schlundt
- Center of Biomolecular Magnetic Resonance (BMRZ), Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute for Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
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Hatch G, Cole L, Vandel M, Dolinsky V. Tissue Specific Knockout of the Cardiolipin Transacylase Enzyme Tafazzin in Both Liver and Pancreatic Beta Cells Protects Mice From Diet‐Induced Obesity. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.05240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Kennedy K, Bengiat R, Heaton C, Herman Y, Oz C, Elad ML, Cole L, Francese S. "MALDI-CSI": A proposed method for the tandem detection of human blood and DNA typing from enhanced fingermarks. Forensic Sci Int 2021; 323:110774. [PMID: 33930825 DOI: 10.1016/j.forsciint.2021.110774] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/09/2021] [Revised: 03/22/2021] [Accepted: 03/27/2021] [Indexed: 01/25/2023]
Abstract
Matrix Assisted Laser Desorption Ionization Mass Spectrometry Profiling and Imaging (MALDI MSP and MALDI MSI), in combination with bottom up proteomics, have proven to successfully detect and map blood-derived peptide signatures in blood fingermarks, with high specificity and compatibility with a number of blood enhancement techniques (BET). In the present study, the application of MALDI MSP and MSI to blood marks has been investigated further. In particular, the MALDI based detection and visualisation of blood has been explored in tandem with DNA typing. This investigation has been undertaken in a scenario simulating blood fingermarks on painted walls. In the present study, two sets of marks were analysed with each set comprising of a depletion series of four marks deposited on a surface treated to simulate painted walls: Set I - developed with Ninhydrin (NIN) and Set II- developed with Acid Black-1 (AB-1). For both sets, the application of MALDI MSP was successful in detecting haem and human specific haemoglobin peptide markers. MALDI MSI also provided molecular images by visualising haem on the ridge pattern enhanced by BET. The feasibility of successful and subsequent DNA profiling from the recovered fingermarks was also assessed for marks that had undergone enzymatic in situ digestion and MALDI MSI; it was observed that in 73% of the samples analysed, a DNA profile suitable for comparison was obtained. Based on these results, a possible operational workflow has been proposed incorporating the use of a MALDI MS based approach as a confirmatory test for human blood enabling subsequent DNA typing.
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Affiliation(s)
- Katie Kennedy
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Ravell Bengiat
- Latent Fingerprint Laboratory, Division of Identification and Forensic Science (DIFS), Israel Police, National H.Q., Jerusalem 9780204, Israel
| | - Cameron Heaton
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Yael Herman
- Biology & DNA Laboratory, Division of Identification and Forensic Science (DIFS), Israel Police, National H.Q., Jerusalem 9780204, Israel
| | - Carla Oz
- Biology & DNA Laboratory, Division of Identification and Forensic Science (DIFS), Israel Police, National H.Q., Jerusalem 9780204, Israel
| | - Michal Levin Elad
- Latent Fingerprint Laboratory, Division of Identification and Forensic Science (DIFS), Israel Police, National H.Q., Jerusalem 9780204, Israel
| | - Laura Cole
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Simona Francese
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK.
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24
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Fogeron ML, Lecoq L, Cole L, Harbers M, Böckmann A. Easy Synthesis of Complex Biomolecular Assemblies: Wheat Germ Cell-Free Protein Expression in Structural Biology. Front Mol Biosci 2021; 8:639587. [PMID: 33842544 PMCID: PMC8027086 DOI: 10.3389/fmolb.2021.639587] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/20/2021] [Indexed: 12/18/2022] Open
Abstract
Cell-free protein synthesis (CFPS) systems are gaining more importance as universal tools for basic research, applied sciences, and product development with new technologies emerging for their application. Huge progress was made in the field of synthetic biology using CFPS to develop new proteins for technical applications and therapy. Out of the available CFPS systems, wheat germ cell-free protein synthesis (WG-CFPS) merges the highest yields with the use of a eukaryotic ribosome, making it an excellent approach for the synthesis of complex eukaryotic proteins including, for example, protein complexes and membrane proteins. Separating the translation reaction from other cellular processes, CFPS offers a flexible means to adapt translation reactions to protein needs. There is a large demand for such potent, easy-to-use, rapid protein expression systems, which are optimally serving protein requirements to drive biochemical and structural biology research. We summarize here a general workflow for a wheat germ system providing examples from the literature, as well as applications used for our own studies in structural biology. With this review, we want to highlight the tremendous potential of the rapidly evolving and highly versatile CFPS systems, making them more widely used as common tools to recombinantly prepare particularly challenging recombinant eukaryotic proteins.
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Affiliation(s)
- Marie-Laure Fogeron
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Lauriane Lecoq
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Laura Cole
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
| | - Matthias Harbers
- CellFree Sciences, Yokohama, Japan
- RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
| | - Anja Böckmann
- Molecular Microbiology and Structural Biochemistry, Labex Ecofect, UMR 5086 CNRS/Université de Lyon, Lyon, France
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25
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Voloaca O, Clench M, Cole L, Greenhalgh C, Managh A, Haywood-Small S. P25.03 Novel Diagnosis Technique for Identification of Asbestos Fibres in Mesothelioma Samples using LA-ICP-MS Imaging. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Cole L, Pivetta M, Humm K. Diagnostic accuracy of a lung ultrasound protocol (Vet BLUE) for detection of pleural fluid, pneumothorax and lung pathology in dogs and cats. J Small Anim Pract 2021; 62:178-186. [PMID: 33496045 DOI: 10.1111/jsap.13271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To assess the accuracy of the lung ultrasound protocol Vet BLUE, using thoracic CT as the reference standard, for the detection of thoracic pathology in dogs and cats. MATERIALS AND METHODS Animals that had thoracic ultrasound and thoracic CT were prospectively recruited between May 2017 and September 2018. The Vet BLUE protocol was performed on animals at the time of admission by veterinarians with basic training in emergency ultrasound. A board-certified radiologist, blinded to the Vet BLUE findings, reviewed the CT images. RESULTS CT was abnormal in 64.5% (20/31) animals. The number of CT sites positive for alveolar-interstitial syndrome was 24.2% (60/248). When using CT as the reference standard, detection of ≥3 B lines with thoracic ultrasound had a sensitivity of 18.33% and specificity of 98.4% for detection of site specific alveolar-interstitial syndrome. The sensitivity of Vet BLUE to detect alveolar-interstitial syndrome increased to 56.9% when including the presence of any B line as abnormal. Overall accuracy for detection of alveolar-interstitial syndrome based on these two criteria was 79% and 73%, respectively. Vet BLUE correctly identified consolidation in 58.3% (14/24) sites, pleural effusion in 66.6% (2/3) cases, pneumothorax in 33.3% (1/3) cases and intrathoracic mass in 25% (1/4) cases. CLINICAL SIGNIFICANCE The Vet BLUE protocol is a useful technique to detect alveolar-interstitial syndrome and other thoracic pathology but should not be used as a sole imaging method. Detection of ≥3 B lines is highly suggestive of alveolar-interstitial syndrome and warrants further diagnostics.
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Affiliation(s)
- L Cole
- Clinical Science and Services, Royal Veterinary College, Hawkshead Lane, Hatfield, AL9 7TA, UK
| | - M Pivetta
- Antech Imaging Services, Irvine, CA, 92614, USA
| | - K Humm
- Clinical Science and Services, Royal Veterinary College, Hawkshead Lane, Hatfield, AL9 7TA, UK
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27
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Cole L, Samsi K, Manthorpe J. Professionals' views on the "optimal time" for people living with dementia to move to a care home. Int J Geriatr Psychiatry 2021; 36:136-142. [PMID: 32808388 DOI: 10.1002/gps.5405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 08/05/2020] [Accepted: 08/14/2020] [Indexed: 11/07/2022]
Abstract
OBJECTIVE The decision about the best time for a person living with dementia to move to a care home involves the individual and others, particularly family. However, little is known about care professionals' views on the best time to move, particularly those with decision-making authority. This study investigated social workers' and care home managers' views on whether there is an "optimal time" for a move. METHODS A qualitative, phenomenological approach was employed, using semi-structured interviews with 20 social workers and 20 care home managers in England; all with experience of advising people living with dementia about a care home move and making decisions about funding or acceptance. Interviews were audio-recorded, transcribed, and analyzed thematically. RESULTS Four overarching themes emerged from the data: (1) staying at home for as long as possible but avoiding crisis, (2) balancing risks proactively and anticipating triggers, (3) desires for the person living with dementia to be involved in the decision, and (4) the significance of funding in enabling choices about a care home move. CONCLUSIONS Deciding on the timing of a care home move is context and person specific. Two professional groups with substantial experience of this among their client group both recommended proactive deliberation but funding was overall the deciding factor in the extent to which they considered choice was possible. Future research should avoid seeing all care home moves as negative and explore how practitioners can best encourage discussions prior to crisis point about care home options.
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Affiliation(s)
- Laura Cole
- NIHR Policy Research Unit in Health and Social Care Workforce, King's College London, London, UK
| | - Kritika Samsi
- NIHR Policy Research Unit in Health and Social Care Workforce, King's College London, London, UK
| | - Jill Manthorpe
- NIHR Policy Research Unit in Health and Social Care Workforce, King's College London, London, UK
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28
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Kennedy K, Heaton C, Langenburg G, Cole L, Clark T, Clench MR, Sears V, Sealey M, McColm R, Francese S. Pre-validation of a MALDI MS proteomics-based method for the reliable detection of blood and blood provenance. Sci Rep 2020; 10:17087. [PMID: 33051553 PMCID: PMC7555906 DOI: 10.1038/s41598-020-74253-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/28/2020] [Indexed: 12/18/2022] Open
Abstract
The reliable identification of blood, as well as the determination of its origin (human or animal) is of great importance in a forensic investigation. Whilst presumptive tests are rapid and deployed in situ, their very nature requires confirmatory tests to be performed remotely. However, only serological tests can determine blood provenance. The present study improves on a previously devised Matrix Assisted Laser Desorption Ionisation Mass Spectrometry (MALDI MS)—proteomics based method for the reliable detection of blood by enabling the determination of blood provenance. The overall protocol was developed to be more specific than presumptive tests and faster/easier than the gold standard liquid chromatography (LC) MS/MS analysis. This is considered a pre-validation study that has investigated stains and fingermarks made in blood, other biofluids and substances that can elicit a false-positive response to colorimetric or presumptive tests, in a blind fashion. Stains and marks were either untreated or enhanced with a range of presumptive tests. Human and animal blood were correctly discriminated from other biofluids and non-biofluid related matrices; animal species determination was also possible within the system investigated. The procedure is compatible with the prior application of presumptive tests. The refined strategy resulting from iterative improvements through a trial and error study of 56 samples was applied to a final set of 13 blind samples. This final study yielded 12/13 correct identifications with the 13th sample being correctly identified as animal blood but with no species attribution. This body of work will contribute towards the validation of MALDI MS based methods and deployment in violent crimes involving bloodshed.
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Affiliation(s)
- Katie Kennedy
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Cameron Heaton
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | | | - Laura Cole
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Tom Clark
- Sheffield Hallam University, Sheffield, UK
| | - Malcolm R Clench
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Vaughn Sears
- Former Centre for Applied Science and Technology (CAST), Home Office, St Albans, UK
| | - Mark Sealey
- Defence Science and Technology Laboratories (DSTL), Porton Down, Salisbury, UK
| | - Richard McColm
- Defence Science and Technology Laboratories (DSTL), Porton Down, Salisbury, UK
| | - Simona Francese
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK.
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29
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Donovan H, Ellis E, Cole L, Townsend E, Cases A. Reducing time to complete neuropsychological assessments within a memory assessment service and evaluating the wider impact. BMJ Open Qual 2020; 9:bmjoq-2019-000767. [PMID: 32727868 PMCID: PMC7394246 DOI: 10.1136/bmjoq-2019-000767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 06/08/2020] [Accepted: 06/24/2020] [Indexed: 11/16/2022] Open
Abstract
In 2016, the Older People’s Mental Health Service (OPMHS) within Bedfordshire and Luton (provided by East London Foundation National Health Service Trust) faced considerable challenges in providing an accessible service for assessment of suspected dementia. Those referred to the Memory Assessment Service (MAS) encountered waiting times exceeding national recommendations. A quality improvement (QI) project was initiated by OPMHS Psychologists within all four multidisciplinary MAS clinics in Bedfordshire and Luton. The project aimed to reduce the time from the date of referral for within-team neuropsychological assessment to finalisation of the report to 6 weeks (42 days) by April 2017. In parallel to the initiative, the wider impact of the QI project was investigated. Through the combination of change ideas tested and implemented, all four MAS clinics were successful in meeting the primary project aim. The combined mean time between referral received by psychology and report finalised reduced by 28.76 days from 65.1 to 36.34 days, and with reduced variation across the clinics. These changes were sustained throughout the duration of the project and beyond, and successful change ideas were incorporated into routine practice with control methods developed. Exploring the wider impact, a focus group with six psychology staff members involved in the project was also completed. Thematic analysis identified three themes from the focus group: staff impact, service impact and service user impact. Further subthemes were identified regarding both desirable and undesirable impact across the system. The approaches used may be useful for other services embarking on reduced wait time initiatives for access to care. Additionally, understanding ongoing areas of impact on staff, the wider service and service users can help reduce or mitigate undesirable or unintended consequences and work towards sustainability of such changes.
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Affiliation(s)
- Helen Donovan
- Bedfordshire and Luton Mental Health Services, East London NHS Foundation Trust, Bedfordshire, UK
| | - Emma Ellis
- Bedfordshire and Luton Mental Health Services, East London NHS Foundation Trust, Bedfordshire, UK
| | - Laura Cole
- Clinical Psychology Doctorate Programme, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, UK
| | - Emma Townsend
- Clinical Psychology Doctorate Programme, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, Norfolk, UK
| | - Alejandra Cases
- Slough Older People's Mental Health Service, Berkshire Healthcare NHS Foundation Trust, Slough, UK
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30
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Kereliuk SM, Agarwal P, Brawerman G, Cole L, Xiang B, Fonseca M, Hatch G, McGavock J, Dolinsky V. Abstract 242: Multi-omics Profiling of Rat Offspring Exposed to Gestational Diabetes Reveals Cardiometabolic Disease Development With Age. Circ Res 2020. [DOI: 10.1161/res.127.suppl_1.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Through unknown mechanisms, fetal exposure to gestational diabetes mellitus (GDM) increases the risk for cardiovascular disease development later in life. We hypothesize that fetal exposure to GDM induces alterations in cardiomyocyte metabolism and induces left ventricular (LV) dysfunction with age. GDM was induced in female rats with a high fat (45% kcal) and sucrose diet prior to mating, throughout pregnancy and lactation. Lean control females received a low fat (10% kcal) diet. Fetal rat ventricular cardiomyocytes (FRVC) were isolated from e20.5 offspring for U-13C glucose metabolic flux analysis, mitochondrial respiration and calcium handling. The cardiac transcriptome and metabolome were measured in 3-month old offspring. LV morphology and function was assessed in the offspring from e18 to 12-months of age by transthoracic ultrasound. Offspring exposed to GDM exhibited increased LV posterior wall thickness across their life course (fetal to 12-months of age; p<0.05) and impaired LV filling beginning at 6-months of age (p<0.05). Consistent with the development of diastolic dysfunction in vivo, alterations in calcium flux and sarcoplasmic reticulum-dependent calcium re-uptake (1.5-fold and 1.6-fold greater, respectively) were observed in FRVC isolated from GDM offspring (p<0.05). When FRVC were treated with isoproterenol, U-13C glucose metabolic flux through glycolysis and the citric acid cycle was reduced in GDM offspring, compared to Lean controls. In 3-month old offspring serum metabolomics revealed reduced citric acid cycle intermediates and an altered acylcarnitine profile. These metabolic changes corresponded to alterations in gene expression patterns identified by RNASeq associated with glucose metabolism and fatty acid transport pathways (e.g.
Irs2, Slc2a4, Pfkfb2, Pdk4
and
Cpt1a)
. Large-scale profiling revealed GDM induced alterations in the cardiac gene expression profile leading to modified serum metabolite levels in the offspring. These alterations corresponded with mitochondrial dysfunction, impaired cardiomyocyte metabolic flux and contractility, in concert with LV hypertrophy and diastolic dysfunction in the rat offspring. Our findings identify several mechanisms that link early-life GDM exposure to the development of cardiovascular disease later in life.
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Affiliation(s)
| | | | | | | | - Bo Xiang
- Univ of Manitoba, Winnipeg, Canada
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Zewdie E, Ciechanski P, Kuo HC, Giuffre A, Kahl C, King R, Cole L, Godfrey H, Seeger T, Swansburg R, Damji O, Rajapakse T, Hodge J, Nelson S, Selby B, Gan L, Jadavji Z, Larson JR, MacMaster F, Yang JF, Barlow K, Gorassini M, Brunton K, Kirton A. Safety and tolerability of transcranial magnetic and direct current stimulation in children: Prospective single center evidence from 3.5 million stimulations. Brain Stimul 2019; 13:565-575. [PMID: 32289678 DOI: 10.1016/j.brs.2019.12.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [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: 08/07/2019] [Revised: 11/20/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Non-invasive brain stimulation is being increasingly used to interrogate neurophysiology and modulate brain function. Despite the high scientific and therapeutic potential of non-invasive brain stimulation, experience in the developing brain has been limited. OBJECTIVE To determine the safety and tolerability of non-invasive neurostimulation in children across diverse modalities of stimulation and pediatric populations. METHODS A non-invasive brain stimulation program was established in 2008 at our pediatric, academic institution. Multi-disciplinary neurophysiological studies included single- and paired-pulse Transcranial Magnetic Stimulation (TMS) methods. Motor mapping employed robotic TMS. Interventional trials included repetitive TMS (rTMS) and transcranial direct current stimulation (tDCS). Standardized safety and tolerability measures were completed prospectively by all participants. RESULTS Over 10 years, 384 children underwent brain stimulation (median 13 years, range 0.8-18.0). Populations included typical development (n = 118), perinatal stroke/cerebral palsy (n = 101), mild traumatic brain injury (n = 121) neuropsychiatric disorders (n = 37), and other (n = 7). No serious adverse events occurred. Drop-outs were rare (<1%). No seizures were reported despite >100 participants having brain injuries and/or epilepsy. Tolerability between single and paired-pulse TMS (542340 stimulations) and rTMS (3.0 million stimulations) was comparable and favourable. TMS-related headache was more common in perinatal stroke (40%) than healthy participants (13%) but was mild and self-limiting. Tolerability improved over time with side-effect frequency decreasing by >50%. Robotic TMS motor mapping was well-tolerated though neck pain was more common than with manual TMS (33% vs 3%). Across 612 tDCS sessions including 92 children, tolerability was favourable with mild itching/tingling reported in 37%. CONCLUSIONS Standard non-invasive brain stimulation paradigms are safe and well-tolerated in children and should be considered minimal risk. Advancement of applications in the developing brain are warranted. A new and improved pediatric NIBS safety and tolerability form is included.
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Affiliation(s)
- E Zewdie
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - P Ciechanski
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H C Kuo
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - A Giuffre
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - C Kahl
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R King
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - L Cole
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H Godfrey
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - T Seeger
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R Swansburg
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - O Damji
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - T Rajapakse
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J Hodge
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - S Nelson
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - B Selby
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - L Gan
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Z Jadavji
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J R Larson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - F MacMaster
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - J F Yang
- Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - K Barlow
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - M Gorassini
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - K Brunton
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - A Kirton
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Neurosciences, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Samsi K, Cole L, Manthorpe J. MULTIPLE PERSPECTIVES ON WHAT (IF ANY) IS AN OPTIMAL TIME FOR PEOPLE WITH DEMENTIA TO MOVE TO A CARE HOME. Innov Aging 2019. [PMCID: PMC6846142 DOI: 10.1093/geroni/igz038.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Deciding an ‘optimal’ time for a person with dementia to move to a care home may be difficult for people with dementia, family carers, and professionals who support them; but there is currently limited evidence to help make this decision. Using phenomenology, we carried out qualitative interviews with 20 family carers, 5 people with dementia, 20 care home managers and 20 social workers, about their experiences, views and attitudes regarding timing of a move to a care home. Social workers indicated that managing risks and safety of person with dementia living in their own home were paramount when considering where person with dementia should live. These concerns included mishandling gas and electrical equipment at home, wandering and getting lost outside, and breakdown of family care. They and care home managers valued wishes of the person with dementia, and minimising any emotional distress to them when a move did come about. Family carers reported feeling stressed, and guilty around decision-making and ultimate move of their relative to a care home. Many described weighing up various risks when reaching ‘tipping point’ and making trade-offs between available options or uncertain future choices. Participants with dementia recognised they had struggled to cope at home and needed more support; however, many found the move difficult as they relocated nearer to family, away from their home and friends, and resigned themselves to less independence. Most people with dementia reported that their carers initiated discussions about timing of move, and that family discussions about this were common.
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Affiliation(s)
| | - Laura Cole
- King’s College London, London, United Kingdom
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Gruber B, Cole L, Xiang B, Hatch G, Dolinsky VERNONW. 29 - Does Gestational Diabetes Result From Hepatic Steatosis in Adiponectin-Deficient Mice? Can J Diabetes 2019. [DOI: 10.1016/j.jcjd.2019.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kereliuk STEPHANIEM, Agarwal P, Cole L, Xiang B, Fonseca M, Hatch G, Mcgavock JONATHANM, Dolinsky VERNONW. 30 - Multiomics Profiling of Rat Offspring Exposed to Gestational Diabetes Reveals Cardiometabolic Disease Development With Age. Can J Diabetes 2019. [DOI: 10.1016/j.jcjd.2019.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cole L, MacQuillan E. Barriers to Administering Enteral Feeding in Critically Ill Patients: A Case Report. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.06.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kereliuk S, Agarwal P, Cole L, Cheung K, Xiang B, Fonseca M, Hatch G, McGavock J, Dolinsky V. Abstract 547: Metabolomic and Transcriptomic Profiling of Rat Offspring Exposed to Gestational Diabetes Reveals Altered Cardiac Gene Expression and Metabolism. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Gestational diabetes mellitus (GDM) is the most common complication of pregnancy. Children exposed to GDM are at an increased risk of developing cardiometabolic diseases later in life, though the mechanisms responsible are unknown. We hypothesize that fetal exposure to GDM induces alterations in cardiomyocyte metabolism and concomitant left ventricular (LV) dysfunction with age. GDM was induced in female rats with a high fat (45% kcal) and sucrose diet prior to mating, throughout pregnancy and lactation. Lean control females received a low fat (10% kcal) diet. Fetal rat ventricular cardiomyocytes (FRVC) were isolated from e20.5 offspring for U-13C glucose metabolic flux analysis and mitochondrial respiration. Serum metabolites and cardiac transcriptome profiles were measured in 3-month old offspring. LV morphology and function was assessed through the life course of the offspring (e18 to 12-months of age) by transthoracic ultrasound. Offspring exposed to GDM exhibited increased LV posterior wall thickness across their life course (fetal to 12-months of age; p<0.05) and impaired LV filling beginning at 6-months of age (p<0.05). U-13C glucose metabolic flux through glycolysis and the citric acid cycle was reduced in FRVC from GDM offspring when treated with isoproterenol, and compared to Lean FRVC. Basal and maximal mitochondrial oxygen consumption was reduced for glucose (35% and 68%) and fatty acid (49% and 52%) substrates in FRVC isolated from GDM offspring (p<0.05). In 3-month old GDM offspring, serum metabolomics revealed elevated levels of beta-hydroxybutyrate (2.4-fold, p<0.05) and reduced levels of several citric acid cycle intermediates, which also corresponded to alterations in gene expression patterns identified by RNASeq transcript analysis. Large-scale profiling revealed GDM induced alterations in the cardiac gene expression profile leading to modified serum metabolite levels in the offspring. These alterations corresponded with mitochondrial dysfunction, impaired cardiomyocyte metabolic flux and contractility, in concert with LV hypertrophy and diastolic dysfunction in the rat offspring. Our findings identify several mechanisms that link early-life GDM exposure to the development of cardiovascular disease later in life.
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Affiliation(s)
| | | | | | | | - Bo Xiang
- Univ of Manitoba, Winnipeg, Canada
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Zewdie E, Ciechanski P, Kuo H, Giuffre A, Kahl C, King R, Cole L, Grant H, Seeger T, Damji O, Hodge J, Selby B, Gan L, Barlow K, MacMaster F, Kirton A. Safety and tolerability of non-invasive neurostimulation in children. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Naka T, Egi M, Bellomo R, Cole L, French C, Botha J, Wan L, Fealy N, Baldwin I. Commercial Low-citrate Anticoagulation Haemofiltration in High Risk Patients with Frequent Filter Clotting. Anaesth Intensive Care 2019; 33:601-8. [PMID: 16235478 DOI: 10.1177/0310057x0503300509] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 11/15/2022]
Abstract
This study assessed the safety and efficacy of a commercial low-citrate concentration-based pre-filter replacement fluid during continuous veno-venous haemofiltration (CVVH) in patients with frequent filter clotting and high risk of bleeding. We used a commercial low-citrate fluid as pre-dilution replacement fluid during CVVH (citrate: 11 mmol/l (33 meq/l), sodium: 140 mmol/l, chloride: 108 mmol/l and potassium: 1 mmol/l). A calcium and magnesium infusion was delivered separately by central line for the maintenance of serum ionized calcium (Cai) and total magnesium (Mg). In this prospective observational study, 30 patients, 124 filters and 1,515 treatment-hours were observed. Median filter life of citrate CVVH was 9.5 hours. Filter life in the 48 hours prior to citrate CVVH was also observed. In the patients on prior non-anticoagulant CVVH (n=14) filter life increased significantly with citrate (9.5 hours vs 5 hours; P<0.0001). In patients on prior heparin CVVH (n=15), filter life was similar with citrate (10 hours vs 8 hours; P=0.68). However, in patients with prior early/frequent filter clotting despite heparin (n=11) filter life increased significantly (10 hours vs 7 hours; P=0.038). Of 411 serum Cai measurements, none showed a Cai<0.85 mmol/l and, of 84 observations, none showed a serum Mg<0.6mmol/l. One patient with sepsis and shock needed to cease citrate CVVH because of progressive ionized hypocalcaemia and increasing anion gap. No other adverse effects were observed. In selected patients, CVVH with a commercial low-citrate concentration solution as pre-filter replacement fluid and a simultaneous calcium and magnesium infusion protocol appears generally safe. Filter life was acceptable and superior to that achieved with previous treatment.
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Affiliation(s)
- T Naka
- Department of Intensive Care and Medicine (University of Melbourne), Austin Hospital, Austin Health, Victoria
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Ameis SH, Kassee C, Corbett-Dick P, Cole L, Dadhwal S, Lai MC, Veenstra-VanderWeele J, Correll CU. Systematic review and guide to management of core and psychiatric symptoms in youth with autism. Acta Psychiatr Scand 2018; 138:379-400. [PMID: 29904907 DOI: 10.1111/acps.12918] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/21/2018] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Evidence-based guidance of clinical decision-making for the management of Autism Spectrum Disorder (ASD) is lacking, particularly for co-occurring psychiatric symptoms. This review evaluates treatment evidence for six common symptom targets in children/adolescents with ASD and provides a resource to facilitate application of the evidence to clinical practice. METHOD A systematic search identified randomized controlled trials (RCTs) and high-quality systematic reviews published between 2007 and 2016, focused on: social interaction/communication impairment, stereotypic/repetitive behaviours, irritability/agitation, attention-deficit/hyperactivity disorder symptoms, mood or anxiety symptoms, and sleep difficulties. We then completed qualitative evaluation of high-quality systematic reviews/meta-analyses and quantitative evaluation of recently published RCTs not covered by prior comprehensive systematic reviews. RESULTS Recently published RCTs focused on social interaction and communication impairment (trials = 32) using psychosocial interventions. Interventions for irritability/agitation (trials = 16) were mainly pharmacological. Few RCTs focused on other symptom targets (trials = 2-5/target). Integration of these results with our qualitative review indicated that few established treatment modalities exist, and available evidence is limited by small studies with high risk of bias. CONCLUSION Given the current evidence-base, treatment targets must be clearly defined, and a systematic approach to intervention trials in children/adolescents with ASD must be undertaken with careful consideration of the limitations of safety/efficacy data.
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Affiliation(s)
- S H Ameis
- Child, Youth and Emerging Adult Program, Centre for Addiction and Mental Health (CAMH), Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Department of Psychiatry, Hospital for Sick Children, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - C Kassee
- Child, Youth and Emerging Adult Program, Centre for Addiction and Mental Health (CAMH), Campbell Family Mental Health Research Institute, Toronto, ON, Canada
| | - P Corbett-Dick
- Division of Developmental and Behavioural Pediatrics, University of Rochester School of Nursing, University of Rochester Medical Centre, Rochester, NY, USA
| | - L Cole
- Division of Developmental and Behavioural Pediatrics, University of Rochester School of Nursing, University of Rochester Medical Centre, Rochester, NY, USA
| | - S Dadhwal
- Child, Youth and Emerging Adult Program, Centre for Addiction and Mental Health (CAMH), Campbell Family Mental Health Research Institute, Toronto, ON, Canada
| | - M-C Lai
- Child, Youth and Emerging Adult Program, Centre for Addiction and Mental Health (CAMH), Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Department of Psychiatry, Hospital for Sick Children, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - J Veenstra-VanderWeele
- New York Presbyterian Hospital Center for Autism and the Developing Brain, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - C U Correll
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA.,Hofstra Northwell School of Medicine, Hempstead, NY, USA.,Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany
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Thandi G, Harden L, Cole L, Greenberg N, Fear NT. Systematic review of caregiver burden in spouses and partners providing informal care to wounded, injured or sick (WIS) military personnel. J ROY ARMY MED CORPS 2018; 164:365-369. [PMID: 29440468 DOI: 10.1136/jramc-2017-000821] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/20/2017] [Accepted: 10/29/2017] [Indexed: 11/04/2022]
Abstract
INTRODUCTION For the purposes of this review, caregivers are individuals who provide care that is typically unpaid and usually takes place at home. This systematic review aims to identify burden among spouses/partners caring for wounded, injured or sick military personnel and the factors associated with caregiver burden. METHODS A systematic review was undertaken using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses reporting guidelines. Five electronic databases and relevant websites were searched. Two reviewers appraised the quality of the studies and carried out data extraction. RESULTS Ten original papers were identified, of which eight were quantitative studies and two were qualitative. These papers highlighted the potential negative impact caregiving can have on spouses/partners and also some of the positive aspects of caring that can strengthen intimate relationships. CONCLUSIONS Caring for an injured or ill military spouse or partner is a difficult task, compounded by the complexity of dealing with potentially both their physical and mental health problems. However, research has also identified some positive aspects of caring that can strengthen intimate relationships.
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Affiliation(s)
- Gursimran Thandi
- Academic Department of Military Mental Health, King's College London, London, UK
| | - L Harden
- Academic Department of Military Mental Health, King's College London, London, UK
| | - L Cole
- Social Science and Public Policy, King's College London, London, UK
| | - N Greenberg
- Academic Department of Military Mental Health, King's College London, London, UK
| | - N T Fear
- Academic Department of Military Mental Health, King's College London, London, UK
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Abstract
Dementia has been identified as one of the major challenges in the 21st Century. The detrimental effects of dementia can jeopardise personhood, thus person-centred interventions including reminiscence and arts practice have been recommended as tools to promote social inclusion and improve the quality of life. This study aimed to evaluate the effectiveness of group reminiscence arts sessions for people living with dementia in care homes (residential and nursing homes) using a comparative and time series design to collect data on quality of life. The intervention was conducted in six care homes in London over a period of 24 weeks and compared with six care homes not receiving the intervention (control). Dementia Care Mapping was used as the primary data collection instrument to measure positive behaviours and rate quality of life before, during and after group reminiscence arts sessions. The evaluation team observed the sessions at three-weekly intervals. Statistical modelling found that positive behaviours and quality of life of care home residents participating in group reminiscence arts sessions increased over the 24-week period. Well-being increased sharply during each session and plateaued at 50 minutes with a sustained positive effect after the sessions. On a longer timescale, well-being and quality of life increased slowly and steadily from one session to the next. The findings were statistically significant ( p < 0.001). The study concludes that group reminiscence arts sessions can have a positive and sustained impact on the quality of life of people with dementia. However, the evidence on the sustainability of the effect over time remains unknown. More research is needed to assess in much greater depth the association between quality of life and group reminiscence arts sessions.
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Affiliation(s)
- Frank Keating
- Department of Social Work, Royal Holloway University of London, UK.,Faculty of Health, Social Care and Education, Kingston and St George's University, UK
| | - Laura Cole
- Social Care Workforce Research Unit, King's College London, UK.,Faculty of Health, Social Care and Education, Kingston and St George's University, UK
| | - Robert Grant
- Faculty of Health, Social Care and Education, Kingston and St George's University, UK
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Samsi K, Cole L, Manthorpe J. P3‐531: WHEN IS THE TIME RIGHT TO MOVE INTO A CARE HOME? Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.06.1896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Laura Cole
- King's College LondonLondonUnited Kingdom
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Moore S, Hostnik E, Cole L. Mechanical Quantitative Sensory Testing in A Canine Translational Model of Neuropathic Pain: A Pilot Investigation. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1660886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- S. Moore
- Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, Ohio, United States
| | - E. Hostnik
- Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, Ohio, United States
| | - L. Cole
- Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, Ohio, United States
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Cole L, Barfield D, Chan DL, Cortellini S. Use of a modified thromboelastography assay for the detection of hyperfibrinolysis in a dog infected with
Angiostrongylus vasorum. Vet rec case rep 2018. [DOI: 10.1136/vetreccr-2017-000554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Laura Cole
- Department of Clinical Science and ServicesRoyal Veterinary CollegeLondonUK
| | - Dominic Barfield
- Department of Clinical Science and ServicesRoyal Veterinary CollegeLondonUK
| | - Daniel L Chan
- Department of Clinical Science and ServicesRoyal Veterinary CollegeLondonUK
| | - Stefano Cortellini
- Department of Clinical Science and ServicesRoyal Veterinary CollegeLondonUK
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Kramer C, Martin K, Cole L, Welch R, Williams EJ, Butcher C, Chhabra S, Williams Y, Hudspeth M, Jaroscak JJ, Judd L, Littleton A, Hess B, Varela JC, Cone M, Stuart RK. Designing Electronic Health Record Tools for Efficient CIBMTR Data Management. Biol Blood Marrow Transplant 2018. [DOI: 10.1016/j.bbmt.2017.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Naka T, Egi M, Bellomo R, Cole L, French C, Wan L, Fealy N, Baldwin I. Low-dose Citrate Continuous Veno-venous Hemofiltration (CVVH) and Acid-base Balance. Int J Artif Organs 2018; 28:222-8. [PMID: 15818544 DOI: 10.1177/039139880502800306] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 11/16/2022]
Abstract
Objective To evaluate the acid-base effect of low-dose regional citrate anticoagulation (RCA) during continuous veno-venous hemofiltration (CVVH). Design Prospective observational study. Setting ICUs of tertiary public and private hospitals. Subjects Thirty critically ill patients with acute renal failure at risk of bleeding or with a major contraindication to heparin-CVVH and/or short filter life. Methods We used a commercial citrate-based fluid (11 mmol/L, sodium: 140 mmol/L, chloride: 108 mmol/L and 1 mol/L of potassium) as pre-dilution replacement fluid during CVVH. Further potassium was added according to serum potassium levels. We measured all relevant variables for acid-base analysis according to the Stewart-Figge methodology. Results Before treatment, study patients had a slight metabolic acidosis, which worsened over 6 hours of RCA-CVVH (pH from 7.39 to 7.38, p<0.005; bicarbonate from 23.2 to 21.6 mmol/L, p<0.0001 and base excess from −2.0 to −3.0 mEq/L, p<0.0001) due to a significant increase in SIG (from 5.8 to 6.6 mEq/L, p<0.05) and a decrease in SIDa (from 37.5 to 36.6 mEq/L, p<0.05). These acidifying effects were attenuated by hypoalbuminemia and a decrease in lactate (from 1.48 to 1.34 mmol/L, p<0.005) and did not lead to progressive acidosis. On cessation of treatment, this acidifying effect rapidly self-corrected within six hours. Conclusions Low dose RCA-CVVH induces a mild acidosis secondary to an increased strong ion gap and decreased SIDa which fully self-corrects at cessation of therapy. Clinicians need to be aware of these effects to correctly interpret changes in acid-base status in such patients.
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Affiliation(s)
- T Naka
- Department of Intensive Care and Department of Medicine, Austin Hospital and Melbourne University, Melbourne, Australia
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Cole L, Bellomo R, Davenport P, Tipping P, Ronco C. Cytokine Removal during Continuous Renal Replacement Therapy: An Ex Vivo Comparison of Convection and Diffusion. Int J Artif Organs 2018; 27:388-97. [PMID: 15202816 DOI: 10.1177/039139880402700507] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 11/16/2022]
Abstract
Background and objectives It is unknown whether cytokine adsorption to the membrane during continuous renal replacement therapy is affected by the technique. Such knowledge might affect the choice of technique in vivo. Accordingly, we conducted an ex vivo study to test whether continuous veno-venous hemofiltration (CVVH) or continuous veno-venous hemodialysis (CVVHD) affect cytokine adsorption differently. Setting Laboratory attached to the Intensive Care Unit of a tertiary hospital Design Six healthy human volunteers donated blood, which was incubated with endotoxin. Control blood was left at room temperature, and treatment blood was recirculated for eight hours through closed circuits using polyacrylonitrile membranes (AN69). The effect of CVVH and CVVHD on cytokine removal from the circuits was compared. Measurements The concentrations of interleukins (IL)-1ß, 6, 8, 10 and TNF were measured in the control samples, pre-and post-filter and in the effluent at baseline and hourly thereafter. The clearances by adsorption, and filtration were calculated. Results Control cytokine concentrations remained the same or increased slightly. Adsorption was the major mechanism of removal for all cytokines with the exception of IL-1ß, but the effect was short-lived. Peak adsorption generally occurred at baseline before the start of CVVH and CVVHD, with clearances ranging from 43.7ml/min (for IL-8) to 7.6ml/min (for IL-10). The time-weighted average total clearances during CVVH were 23.3, 4.3, 3.8, –2.0, and 15ml/min for IL-8, IL-1ß, TNF, IL-6, and IL-10 respectively. The corresponding clearances during CVVHD were 19.0, 10.7, 2.7, 2.4, and 0.3ml/min. IL-10 clearances were greater during CVVH than CVVHD (p=0.03). Non adsorptive CVVH clearance of IL-1ß was greater than CVVHD clearance, but this advantage was outweighed by an increased tendency of the membrane to release IL-1ß into the circuit during HF. Conclusions The technique of solute removal had only a minor effect on the magnitude of cytokine adsorption, and neither technique had the advantage for all the measured cytokines.
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Affiliation(s)
- L Cole
- Department of Intensive Care, Austin & Repatriation Medical Centre, Melbourne, Australia
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Iliffe S, Wright P, Law R, Rogerson A, Cole L, Manthorpe J, Khan M. Enabling Research in Care Homes. Age Ageing 2017; 46:1017. [PMID: 28985266 DOI: 10.1093/ageing/afx131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 06/28/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Steve Iliffe
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Pandora Wright
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Ruth Law
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Andrew Rogerson
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Laura Cole
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Jill Manthorpe
- Section of Geriatrics and Gerontology, Royal Society of Medicine
| | - Mashur Khan
- Section of Geriatrics and Gerontology, Royal Society of Medicine
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Abboud M, Rybchyn MS, Liu J, Ning Y, Gordon-Thomson C, Brennan-Speranza TC, Cole L, Greenfield H, Fraser DR, Mason RS. The effect of parathyroid hormone on the uptake and retention of 25-hydroxyvitamin D in skeletal muscle cells. J Steroid Biochem Mol Biol 2017; 173:173-179. [PMID: 28104493 DOI: 10.1016/j.jsbmb.2017.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/16/2016] [Accepted: 01/03/2017] [Indexed: 11/28/2022]
Abstract
Data from our studies, and those of others, support the proposal that there is a role for skeletal muscle in the maintenance of vitamin D status. We demonstrated that skeletal muscle is able to internalise extracellular vitamin D binding protein, which then binds to actin in the cytoplasm, to provide high affinity binding sites which accumulate 25-hydroxyvitamin D3 (25(OH)D3) [1]. This study investigated the concentration- and time-dependent effects of parathyroid hormone (PTH) on the capacity of muscle cells to take up and release 3H-25(OH)D3. Uptake and retention studies for 3H-25(OH)D3 were carried out with C2C12 cells differentiated into myotubes and with primary mouse muscle fibers as described [1]. The presence of PTH receptors on mouse muscle fibers was demonstrated by immunohistochemistry and PTH receptors were detected in differentiated myotubes, but not myoblasts, and on muscle fibers by Western blot. Addition of low concentrations of vitamin D binding protein to the incubation media did not alter uptake of 25(OH)D3. Pre-incubation of C2 myotubes or primary mouse muscle fibers with PTH (0.1 to 100 pM) for 3h resulted in a concentration-dependent decrease in 25(OH)D3 uptake after 4 or 16h. These effects were significant at 0.1 or 1pM PTH (p<0.001) and plateaued at 10pM, with 25(OH)D3 uptake reduced by over 60% (p<0.001) in both cell types. In C2 myotubes, retention of 25(OH)D3 was decreased after addition of PTH (0.1 to 100pM) in a concentration-dependent manner by up to 80% (p<0.001) compared to non-PTH treated-C2 myotubes. These data show that muscle uptake and retention of 25(OH)D3 are modulated by PTH, a physiological regulator of mineral homeostasis, but the cell culture model may not be a comprehensive reflection of vitamin D homeostatic mechanisms in whole animals.
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Affiliation(s)
- M Abboud
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia; College of Sustainability Sciences and Humanities- Zayed University, Abu Dhabi, United Arab Emirates
| | - M S Rybchyn
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia
| | - J Liu
- Sydney School of Veterinary Science, University of Sydney, Sydney, NSW 2006, Australia
| | - Y Ning
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia
| | - C Gordon-Thomson
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia
| | - T C Brennan-Speranza
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia
| | - L Cole
- Bosch Institute for Medical Research, Australia
| | - H Greenfield
- Sydney School of Veterinary Science, University of Sydney, Sydney, NSW 2006, Australia
| | - D R Fraser
- Sydney School of Veterinary Science, University of Sydney, Sydney, NSW 2006, Australia
| | - R S Mason
- Physiology, School of Medical Sciences, Sydney Medical School, Australia; Bosch Institute for Medical Research, Australia.
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Abstract
Dementia is a distressing condition in which individuals progressively require the support of others. Many people experience problems with incontinence and continence management. The presence of incontinence is influential in decisions for people with dementia to move into a care home. This study, in the interpretative tradition, investigates for the first time the person with dementia’s perspective on these problems and their strategies for managing them. We conducted semi-structured conversational interviews with seven people with mild-to-moderate dementia and analysed the transcripts thematically. Our participants described both a variety of problems with incontinence and continence management, and their embarrassment and humiliation. Strategies included managing their presentation of self to others to keep such problems hidden, although it was evident that for some their cognitive problems led to strategies that were potentially problematic for others. In addition, some described the ways in which they acted to protect others, such as spouses, from the stigmatising effect of the incontinence.
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Affiliation(s)
| | - Vari M Drennan
- Kingston University and St.George's University of London, UK
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