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Barton E, Verduri A, Carter B, Hughes J, Hewitt J, Maskell NA. The association between frailty and survival in patients with pleural disease: a retrospective cohort study. BMC Pulm Med 2024; 24:180. [PMID: 38627673 PMCID: PMC11020337 DOI: 10.1186/s12890-024-02981-3] [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: 12/06/2023] [Accepted: 03/25/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND There are currently no data on the relationship between frailty and mortality in pleural disease. Understanding the relationship between frailty and outcomes is increasingly important for clinicians to guide decisions regarding investigation and management. This study aims to explore the relationship between all-cause mortality and frailty status in patients with pleural disease. METHODS In this retrospective analysis of a prospectively collected observational cohort study, outpatients presenting to the pleural service at a tertiary centre in Bristol, UK with a radiologically confirmed, undiagnosed pleural effusion underwent comprehensive assessment and were assigned a final diagnosis at 12 months. The modified frailty index (mFI) was calculated and participants classified as frail (mFI ≥ 0.4) or not frail (mFI ≤ 0.2). RESULTS 676 participants were included from 3rd March 2008 to 29th December 2020. The median time to mortality was 490 days (IQR 161-1595). A positive association was found between 12-month mortality and frailty (aHR = 1.72, 95% CI 1.02-2.76, p = 0.025) and age ≥ 80 (aHR = 1.80, 95% CI 1.24-2.62, p = 0.002). Subgroup analyses found a stronger association between 12-month mortality and frailty in benign disease (aHR = 4.36, 95% CI 2.17-8.77, p < 0.0001) than in all pleural disease. Malignancy irrespective of frailty status was associated with an increase in all-cause mortality (aHR = 10.40, 95% CI 6.01-18.01, p < 0.0001). CONCLUSION This is the first study evaluating the relationship between frailty and outcomes in pleural disease. Our data demonstrates a strong association between frailty and 12-month mortality in this cohort. A malignant diagnosis is an independent predictor of 12-month mortality, irrespective of frailty status. Frailty was also strongly associated with 12-month mortality in patients with a benign underlying cause for their pleural disease. This has clinical relevance for pleural physicians; evaluating patients' frailty status and its impact on mortality can guide clinicians in assessing suitability for invasive investigation and management. TRIAL REGISTRATION This study is registered with the Health Research Authority (REC reference 08/H0102/11) and the NIHR Portfolio (Study ID 8960).
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Affiliation(s)
- Eleanor Barton
- Academic Respiratory Unit, School of Clinical Sciences, University of Bristol, Bristol, UK.
| | - A Verduri
- Respiratory Unit, Department of Surgical and Medical Sciences, University of Modena and Reggio Emilia, Policlinico Modena, Italy
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
- Department of Population Medicine, Cardiff University, Cardiff, UK
| | - J Hughes
- Academic Respiratory Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - J Hewitt
- Academic Respiratory Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - N A Maskell
- Academic Respiratory Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
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Rachmadi AT, Gyawali P, Summers G, Jabed A, Fletcher GC, Hewitt J. PMAxx-RT-qPCR to Determine Human Norovirus Inactivation Following High-Pressure Processing of Oysters. Food Environ Virol 2024:10.1007/s12560-024-09585-4. [PMID: 38457095 DOI: 10.1007/s12560-024-09585-4] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/24/2024] [Indexed: 03/09/2024]
Abstract
Norovirus is the leading cause of viral gastroenteritis globally. While person-to-person transmission is most commonly reported route of infection, human norovirus is frequently associated with foodborne transmission, including through consumption of contaminated bivalve molluscan shellfish. Reverse transcription (RT)-qPCR is most commonly used method for detecting human norovirus detection in foods, but does not inform on its infectivity, posing challenges for assessing intervention strategies aimed at risk elimination. In this study, RT-qPCR was used in conjunction with a derivative of the photoreactive DNA binding dye propidium monoazide (PMAxx™) (PMAxx-RT-qPCR) to evaluate the viral capsid integrity of norovirus genogroup I and II (GI and GII) in shellfish following high pressure processing (HPP). Norovirus GI.3 and GII.4 bioaccumulated oysters were subjected to HPP at pressures of 300 and 450 MPa at 15 °C, and 300, 450 and 600 MPa at 20 °C. Samples were analysed using both RT-qPCR and PMAxx-RT-qPCR. For each sample, norovirus concentration (genome copies/g digestive tissue) determined by RT-qPCR was divided by the PMAxx-RT-qPCR concentration, giving the relative non-intact (RNI) ratio. The RNI ratio values relate to the amount of non-intact (non-infectious) viruses compared to fully intact (possible infectious) viruses. Our findings revealed an increasing RNI ratio value, indicating decreasing virus integrity, with increasing pressure and decreasing pressure. At 300 MPa, for norovirus GI, the median [95% confidence interval, CI] RNI ratio values were 2.6 [1.9, 3.0] at 15 °C compared to 1.1 [0.9, 1.8] at 20 °C. At 450 MPa, the RNI ratio values were 5.5 [2.9, 7.0] at 15 °C compared to 1.3 [1.0, 1.6] at 20 °C. At 600 MPa, the RNI ratio value was 5.1 [2.9, 13.4] at 20 °C. For norovirus GII, RT-qPCR and PMAxx-RT-qPCR detections were significantly reduced at 450 and 600 MPa at both 15 °C and 20 °C, with the median [95% CI] RNI ratio value at 300 MPa being 1.1 [0.8, 1.6]. Following HPP treatment, the use of PMAxx-RT-qPCR enables the selective detection of intact and potential infectious norovirus, enhancing our understanding of the inactivation profiles and supporting the development of more effective risk assessment strategies.
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Affiliation(s)
- Andri Taruna Rachmadi
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand
| | - Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand
| | - Graeme Summers
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Anower Jabed
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand
| | - Graham C Fletcher
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand.
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Rexin D, Rachmadi AT, Hewitt J. Persistence of Infectious Human Norovirus in Estuarine Water. Food Environ Virol 2024; 16:58-64. [PMID: 38165609 DOI: 10.1007/s12560-023-09577-w] [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] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/28/2023] [Indexed: 01/04/2024]
Abstract
Norovirus is the predominant cause of viral acute gastroenteritis globally. While person-to-person is the most reported transmission route, norovirus is also associated with waterborne and foodborne illness, including from the consumption of contaminated bivalve molluscan shellfish. The main cause of shellfish contamination is via the bioaccumulation of norovirus from growing waters impacted by human wastewater. However, data on the persistence of infectious norovirus in the environment are limited due to a lack of a human norovirus culture method in the past. In this study, we applied the recently established method of norovirus replication in human intestinal enteroids to determine the persistence of norovirus in artificial estuarine water at 25 ppt for up to 21 days at 4 °C and 16 °C in the dark. Infectious norovirus was detected for up to 21 days. The relative infectivity declined from 100 to 3% at day 21, with decay rate constants of 0.07 day-1 at 4 °C and 0.17 day-1 at 16 °C. There was no decrease in norovirus titres as measured by reverse transcription-droplet digital PCR (RT-ddPCR), confirming the lack of the relationship between norovirus infectivity and direct detection by PCR. The results confirm that norovirus can remain infectious for at least 3 weeks in an estuarine water environment, presenting associated health risks.
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Affiliation(s)
- Daniel Rexin
- Institute of Environmental Science and Research Ltd. (ESR), Porirua, 5240, New Zealand.
| | - Andri T Rachmadi
- Institute of Environmental Science and Research Ltd. (ESR), Porirua, 5240, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd. (ESR), Porirua, 5240, New Zealand
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Campos CJA, Gyawali P, Hewitt J. Study of Shellfish Growing Area During Normal Harvesting Periods and Following Wastewater Overflows in an Urban Estuary With Complex Hydrography. Food Environ Virol 2024; 16:79-96. [PMID: 38329699 DOI: 10.1007/s12560-023-09579-8] [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: 09/11/2023] [Accepted: 12/27/2023] [Indexed: 02/09/2024]
Abstract
Viral testing combined with hydrographic studies is considered standard good practice in determining microbiological impacts on shellfish growing areas following wastewater overflows. In this study, norovirus genogroup I and II, indicators of viral contamination (F-RNA bacteriophage genogroup II (F-RNA GII), crAssphage, pepper mild mottle virus) and Escherichia coli were monitored during periods of normal harvesting and following overflows in two commercial shellfish growing areas in Otago Harbour (Aotearoa New Zealand). Dye tracing, drogue tracking and analysis of particle tracking modelling were also undertaken to assess the dispersion, dilution and time of travel of wastewater discharged from a pump station discharge that impacts the growing areas. Norovirus was not detected in any of the 218 shellfish samples tested. PMMoV and crAssphage were more prevalent than F-RNA GII as determined by RT-qPCR. The dye study indicated long residence time of the waters (≥5 days) in the embayment impacted by the discharge. No relationships were found between the concentrations of viral indicators or E. coli and wastewater dilution, distance between the discharge and the growing areas or time since the last overflow. For the three spills studied (≤327 m3), there was little evidence of microbiological impact on the growing areas. This was likely associated with a deep shipping channel that enhances water flushing in the harbour and reduces contaminant transport to the growing areas. We recommend flexibility in the approach for closure/reopening growing areas impacted by spills, particularly for small duration/volume spills and when norovirus is not present in the community.
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Affiliation(s)
- Carlos J A Campos
- Cawthron Institute, 98 Halifax Street East, Nelson, 7042, New Zealand.
- Jacobs, 47 Hereford Street Level 2, Wynn Williams Building, Christchurch, 8013, New Zealand.
| | - Pradip Gyawali
- Institute of Environmental Science and Research Limited (ESR), Kenepuru Science Centre, 34 Kenepuru Drive, Kenepuru, Porirua, 5240, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Limited (ESR), Kenepuru Science Centre, 34 Kenepuru Drive, Kenepuru, Porirua, 5240, New Zealand
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Bierlich KC, Kane A, Hildebrand L, Bird CN, Fernandez Ajo A, Stewart JD, Hewitt J, Hildebrand I, Sumich J, Torres LG. Downsized: gray whales using an alternative foraging ground have smaller morphology. Biol Lett 2023; 19:20230043. [PMID: 37554011 PMCID: PMC10410206 DOI: 10.1098/rsbl.2023.0043] [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: 01/31/2023] [Accepted: 07/20/2023] [Indexed: 08/10/2023] Open
Abstract
Describing individual morphology and growth is key for identifying ecological niches and monitoring the health and fitness of populations. Eastern North Pacific ((ENP), approximately 16 650 individuals) gray whales primarily feed in the Arctic/sub-Arctic regions, while a small subgroup called the Pacific Coast Feeding Group (PCFG, approximately 212 individuals) instead feeds between northern California, USA and British Columbia, Canada. Evidence suggests PCFG whales have lower body condition than ENP whales. Here we investigate morphological differences (length, skull, and fluke span) and compare length-at-age growth curves between ENP and PCFG whales. We use ENP gray whale length-at-age data comprised of strandings, whaling, and aerial photogrammetry (1926-1997) for comparison to data from PCFG whales collected through non-invasive techniques (2016-2022) to estimate age (photo identification) and length (drone-based photogrammetry). We use Bayesian methods to incorporate uncertainty associated with morphological measurements (manual and photogrammetric) and age estimates. We find that while PCFG and ENP whales have similar growth rates, PCFG whales reach smaller asymptotic lengths. Additionally, PCFG whales have relatively smaller skulls and flukes than ENP whales. These findings represent a striking example of morphological adaptation that may facilitate PCFG whales accessing a foraging niche distinct from the Arctic foraging grounds of the broader ENP population.
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Affiliation(s)
- K. C. Bierlich
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - A. Kane
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - L. Hildebrand
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - C. N. Bird
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - A. Fernandez Ajo
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - J. D. Stewart
- Ocean Ecology Lab, Marine Mammal Institute, Department of Fisheries, Wildlife and Conservation Sciences, Oregon State University, Corvallis, Oregon, USA
| | - J. Hewitt
- Department of Statistical Science, Duke University, Durham, NC, USA
| | - I. Hildebrand
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
| | - J. Sumich
- Marine Mammal Institute, Department of Fisheries, Wildlife and Conservation Sciences, Oregon State University, Corvallis, Oregon, USA
| | - L. G. Torres
- Geospatial Ecology of Marine Megafauna Lab, Oregon State University, Corvallis, Oregon, USA
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Noll D, Green L, Asokan G, Barbaro A, Hewitt J, Ovenden C, Kanhere H, Trochsler M. Is YouTube™ a good source of information for patients to understand laparoscopic fundoplication? Ann R Coll Surg Engl 2023; 105:365-371. [PMID: 36374324 PMCID: PMC10066653 DOI: 10.1308/rcsann.2022.0039] [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] [Accepted: 02/28/2022] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Gastro-oesophageal reflux disease affects 10-20% of the population, and laparoscopic fundoplication is one management option. As the most frequently accessed video-sharing website, YouTube has become a popular source of information for patients. This study conducted a cross-sectional analysis of the quality and demographics of patient education videos available on YouTube for laparoscopic fundoplication. METHODS Three searches were performed on YouTube using the phrases 'laparoscopic fundoplication', 'heartburn surgery' and 'reflux operation'. The Health on The Net (HON) code, DISCERN and Journal of the American Medical Association (JAMA) systems were used to score the first 75 results from each query. Information about each video was collected, including number of views, time since posting, number of comments and the author of the video. Relationships between these variables and video quality were investigated. RESULTS The median number of views was 3,793. The most common author category was videos produced by surgeons. Overall the quality was poor, mean HON score was 2.5/8, mean DISCERN score was 29.3/80 and mean JAMA score was 1.5/4. Surgeon-authored videos scored higher when scored using the HON and JAMA systems. Videos of longer duration scored higher using all three scoring systems. No other factors were found to be associated with video quality. CONCLUSION The quality of information in YouTube videos on laparoscopic fundoplication is unreliable. Doctors should be aware of this and caution their patients of YouTube's limitations. Further research is needed to develop validated scoring systems for evaluating the quality of patient education videos.
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Affiliation(s)
- D Noll
- The University of Adelaide, Australia
| | - L Green
- The University of Adelaide, Australia
| | - G Asokan
- The University of Adelaide, Australia
| | - A Barbaro
- The University of Adelaide, Australia
| | - J Hewitt
- The University of Adelaide, Australia
| | - C Ovenden
- The University of Adelaide, Australia
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Mohan C, Entezami P, John S, Hewitt J, Sylevych V, Psirides A. Comparison of the Aotearoa New Zealand Early Warning Score and National Early Warning Score to predict adverse inpatient events in a vital sign dataset. Anaesthesia 2023. [PMID: 36991498 DOI: 10.1111/anae.16007] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2023] [Indexed: 03/31/2023]
Abstract
Aotearoa New Zealand uses a single early warning score (EWS) across all public and private hospitals to detect adult inpatient physiological deterioration. This combines the aggregate weighted scoring of the UK National Early Warning Score with single parameter activation from Australian medical emergency team systems. We conducted a retrospective analysis of a large vital sign dataset to validate the predictive performance of the New Zealand EWS in discriminating between patients at risk of serious adverse events and compared this with the UK EWS. We also compared predictive performance for patients admitted under medical vs. surgical specialties. A total of 1,738,787 aggregate scores (13,910,296 individual vital signs) were obtained from 102,394 hospital admissions to six hospitals within the Canterbury District Health Board of New Zealand's South Island. Predictive performance of each scoring system was determined using area under the receiver operating characteristic curve. Analysis showed that the New Zealand EWS is equivalent to the UK EWS in predicting patients at risk of serious adverse events (cardiac arrest, death and/or unanticipated ICU admission). Area under the receiver operating characteristic curve for both EWSs for any adverse outcome was 0.874 (95%CI 0.871-0.878) and 0.874 (95%CI 0.870-0.877), respectively. Both EWSs showed superior predictive value for cardiac arrest and/or death in patients admitted under surgical rather than medical specialties. Our study is the first validation of the New Zealand EWS in predicting serious adverse events in a broad dataset and supports previous work showing the UK EWS has superior predictive performance in surgical rather than medical patients.
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Affiliation(s)
- C Mohan
- Department of Neurosurgery, Christchurch Hospital, Christchurch, New Zealand
| | - P Entezami
- Department of Neurosurgery, Albany Medical Center, Albany, NY, USA
| | - S John
- Department of Neurosurgery, Christchurch Hospital, Christchurch, New Zealand
| | - J Hewitt
- Quality and Patient Safety, Christchurch Hospital, Christchurch, New Zealand
| | - V Sylevych
- Decision Support Unit, Christchurch Hospital, Christchurch, New Zealand
| | - A Psirides
- Department of Intensive Care, Wellington Regional Hospital, Wellington, New Zealand
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Humphry N, Jones M, Goodison S, Carter B, Hewitt J. The Effect of Sarcopenia on Postoperative Outcomes Following Emergency Laparotomy: A Systematic Review and Meta-Analysis. J Frailty Aging 2023; 12:305-310. [PMID: 38008981 DOI: 10.14283/jfa.2023.30] [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] [Indexed: 11/28/2023]
Abstract
Emergency laparotomy procedures have high rates of postoperative mortality and morbidity in older patient. Sarcopenia is associated with poor postoperative outcomes in elective surgeries and there is growing evidence for its use as a risk predictor in the emergency setting. The study aimed to evaluate the effect of sarcopenia on postoperative mortality and morbidity following emergency laparotomy. Five electronic databases were systematically searched (MEDLINE, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials, and Web of Science) from conception until the 14th February 2022. All prospective cohort studies were included. Risk of bias was assessed with the Newcastle-Ottawa score. Pooled meta-analyses were estimated using the Mantel-Haenszel and inverse-generic variance method for mortality and morbidity outcomes. Eleven retrospective cohort studies were included, of which ten were included in the meta-analysis comprising of 3492 patients (1027 sarcopenic, 2465 non-sarcopenic). The study level incidence of sarcopenia ranged from 24.6 to 50.3% with a median rate of 25.1%. Sarcopenia was associated with increased 30-day mortality (OR 2.36, 95% CI, 1.66, 3.37, I2 = 43%), 90-day mortality (OR 2.51, 95% CI, 1.79, 3.52, I2 = 0%), and length of hospital stay (in days) (MD 1.18, 95% CI, 0.42, 1.94, I2 = 0%, P=0.002), but not incidence of postoperative major complications (OR 1.49, 95% CI, 0.86, 2.56, I2 = 70%, P = 0.15). Sarcopenia predicts poor outcomes following emergency laparotomy. We suggest assessment of sarcopenia should be incorporated into acute surgical assessment to identify high risk patients and inform clinical decision-making prior to an emergency laparotomy.
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Affiliation(s)
- N Humphry
- Dr Nia Humphry, School of Medicine, Cardiff University, United Kingdom, , Telephone number: +447815913222
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McKenzie F, Gazzé G, Hewitt J, Kolm K, Pollock D, Rowland S, Crosbie T. Canadian perspectives in multiple myeloma on the use of steroids in clinical practice based on patient and healthcare provider interviews. Front Oncol 2022; 12:1061417. [PMID: 36568227 PMCID: PMC9772426 DOI: 10.3389/fonc.2022.1061417] [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] [Received: 10/04/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Corticosteroid (steroid) medications are associated with challenging adverse effects that can negatively impact patient quality of life. However, owing to a long legacy of effective use in treatment protocols, they remain a cornerstone of multiple myeloma (MM) care. We conducted a roundtable with Canadian healthcare providers (HCPs) with diverse healthcare backgrounds and involvement in MM care as well as with patients with MM. Our goal was to develop clear guidance for steroid management aimed at improving patient quality of life, taking into account patient perspective and experiences with managing the disease. Our recommendations, which are based on the insights acquired from this discussion, can be categorized to the following areas: steroid prescribing, dosing, and modifications; managing adverse effects; and patient-HCP communication. These recommendations can be used by the entire multi-disciplinary hematology team to improve patient quality of life while being treated with steroid medication for multiple myeloma.
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Affiliation(s)
- Farah McKenzie
- BC Cancer – Prince George Centre, Prince George, BC, Canada,*Correspondence: Farah McKenzie,
| | - Gabriel Gazzé
- Royal Victoria Hospital, McGill University Health Centre, Montreal, QC, Canada
| | - Joanne Hewitt
- Hematology and Oncology Department, Cross Cancer Institute, Edmonton, AB, Canada
| | - Kari Kolm
- Malignant Hematology Department, Hamilton Health Sciences, Hamilton, ON, Canada
| | - Debra Pollock
- Pharmacy Department, Moncton Hospital, Moncton, NB, Canada
| | - Suzanne Rowland
- Pharmacy Department, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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Eaton CJ, Coxon S, Pattis I, Chappell A, Hewitt J, Gilpin BJ. A Framework for Public Health Authorities to Evaluate Health Determinants for Wastewater-Based Epidemiology. Environ Health Perspect 2022; 130:125001. [PMID: 36520537 PMCID: PMC9754092 DOI: 10.1289/ehp11115] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 10/24/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Wastewater-based epidemiology (WBE) is rapidly developing as a powerful public health tool. It can provide information about a wide range of health determinants (HDs), including community exposure to environmental hazards, trends in consumption of licit and illicit substances, spread of infectious diseases, and general community health. As such, the list of possible candidate HDs for WBE is almost limitless. Consequently, a means to evaluate and prioritize suitable candidates for WBE is useful, particularly for public health authorities, who often face resource constraints. OBJECTIVES We have developed a framework to assist public health authorities to decide what HDs may be appropriate for WBE and what biomarkers could be used. This commentary reflects the experience of the authors, who work at the interface of research and public health implementation. DISCUSSION To be suitable for WBE, a candidate HD should address a public health or scientific issue that would benefit from better understanding at the population level. For HDs where information on individual exposures or stratification by population subgroups is required, WBE is less suitable. Where other methodologies are already used to monitor the candidate HD, consideration must be given to whether WBE could provide better or complementary information to the current approach. An essential requirement of WBE is a biomarker specific for the candidate HD. A biomarker in this context refers to any human-excreted chemical or biological that could act as an indicator of consumption or exposure to an environmental hazard or of the human health state. Suitable biomarkers should meet several criteria outlined in this commentary, which requires background knowledge for both the biomarker and the HD. An evaluation tree summarizing key considerations for public health authorities when assessing the suitability of candidate HDs for WBE and an example evaluation are presented. https://doi.org/10.1289/EHP11115.
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Affiliation(s)
- Carla J. Eaton
- Institute of Environmental Science and Research Ltd., Christchurch, New Zealand
| | - Sarah Coxon
- Institute of Environmental Science and Research Ltd., Christchurch, New Zealand
| | - Isabelle Pattis
- Institute of Environmental Science and Research Ltd., Christchurch, New Zealand
| | - Andrew Chappell
- Institute of Environmental Science and Research Ltd., Christchurch, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd., Porirua, New Zealand
| | - Brent J. Gilpin
- Institute of Environmental Science and Research Ltd., Christchurch, New Zealand
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Verduri A, Hewitt J, Carter B, Tonelli R, Clini E, Beghè B. Prevalence of asthma and COPD in a cohort of patients at the follow up after COVID-19 pneumonia. Pulmonology 2022; 29:247-249. [PMID: 35798643 PMCID: PMC9186410 DOI: 10.1016/j.pulmoe.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 12/01/2022] Open
Affiliation(s)
- A Verduri
- Department of Surgical and Medical Sciences (SMECHIMAI), University of Modena and Reggio Emilia, and Respiratory Unit, University Hospital of Modena Policlinico, Modena, I
| | - J Hewitt
- Division of Population Medicine, Cardiff University, Wales, UK
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, England, UK
| | - R Tonelli
- Clinical and Experimental Medicine PhD School, University of Modena and Reggio, Modena, I
| | - E Clini
- Department of Surgical and Medical Sciences (SMECHIMAI), University of Modena and Reggio Emilia, and Respiratory Unit, University Hospital of Modena Policlinico, Modena, I.
| | - B Beghè
- Department of Surgical and Medical Sciences (SMECHIMAI), University of Modena and Reggio Emilia, and Respiratory Unit, University Hospital of Modena Policlinico, Modena, I
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12
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Pang L, Lin S, McGill E, Tham A, Hewitt J, Nokes C, Ward V. Reductions of human enteric viruses in 10 commonly used activated carbon, polypropylene and polyester household drinking-water filters. Water Res 2022; 213:118174. [PMID: 35183016 DOI: 10.1016/j.watres.2022.118174] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Drinking-water treatment in non-networked rural communities relies on the use of point-of-use (PoU) household filters. Source waters treated by PoU filters are often microbially contaminated, but information about human enteric virus reductions in these filters is limited. This study evaluated human rotavirus, adenovirus and norovirus reductions in 10 commonly used, new PoU carbon, polypropylene and polyester microfilters. The viruses were spiked into chlorine-free tap water (pH 8.0, ionic strength 1.22 mM), and 3 sequential challenge tests were conducted in each filter under a constant flow rate of 1 L/min. In most of the filters investigated, the norovirus and adenovirus reductions were similar (P > 0.49). Compared with the norovirus and adenovirus reductions, the rotavirus reductions were significantly lower in the carbon filters (P ≤ 0.009), which may relate to rotavirus's higher zeta potential and lower hydrophobicity. Virus reductions appeared to be dictated by the filter media type through electrostatic and hydrophobic interactions; the effects of filter media pore sizes on virus reductions via physical size-exclusion were very limited. The virus reductions in the carbon filters were significantly greater than those in the polypropylene and polyester filters (P ≤ 0.0001), and they did not differ significantly between the polypropylene and polyester filters (P > 0.24). None of the filters met the "protective" rotavirus reduction level (≥3 log10) required for household drinking-water treatment. Our study's findings highlight a critical need for additional water treatment when using PoU microfilters, for example, water boiling or ultraviolet radiation, or the use of effective surface-modified filter media to prevent drinking-waterborne infections from enteric viruses.
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Affiliation(s)
- Liping Pang
- Institute of Environmental Science and Research Ltd, PO Box 29181, Christchurch 8540, New Zealand.
| | - Susan Lin
- Institute of Environmental Science and Research Ltd, PO Box 29181, Christchurch 8540, New Zealand
| | - Erin McGill
- Institute of Environmental Science and Research Ltd, PO Box 29181, Christchurch 8540, New Zealand
| | - Annabelle Tham
- Institute of Environmental Science and Research Ltd, PO Box 29181, Christchurch 8540, New Zealand; Department of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science & Research Ltd, Kenepuru Science Centre, PO Box 50348, Porirua 5240, New Zealand
| | - Chris Nokes
- Institute of Environmental Science and Research Ltd, PO Box 29181, Christchurch 8540, New Zealand
| | - Vernon Ward
- Department of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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13
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Hewitt J, Trowsdale S, Armstrong BA, Chapman JR, Carter KM, Croucher DM, Trent CR, Sim RE, Gilpin BJ. Sensitivity of wastewater-based epidemiology for detection of SARS-CoV-2 RNA in a low prevalence setting. Water Res 2022; 211:118032. [PMID: 35042077 PMCID: PMC8720482 DOI: 10.1016/j.watres.2021.118032] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [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: 08/21/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 05/04/2023]
Abstract
To assist public health responses to COVID-19, wastewater-based epidemiology (WBE) is being utilised internationally to monitor SARS-CoV-2 infections at the community level. However, questions remain regarding the sensitivity of WBE and its use in low prevalence settings. In this study, we estimated the total number of COVID-19 cases required for detection of SARS-CoV-2 RNA in wastewater. To do this, we leveraged a unique situation where, over a 4-month period, all symptomatic and asymptomatic cases, in a population of approximately 120,000, were precisely known and mainly located in a single managed isolation and quarantine facility (MIQF) building. From 9 July to 6 November 2020, 24-hr composite wastewater samples (n = 113) were collected daily from the sewer outside the MIQF, and from the municipal wastewater treatment plant (WWTP) located 5 km downstream. New daily COVID-19 cases at the MIQF ranged from 0 to 17, and for most of the study period there were no cases outside the MIQF identified. SARS-CoV-2 RNA was detected in 54.0% (61/113) at the WWTP, compared to 95.6% (108/113) at the MIQF. We used logistic regression to estimate the shedding of SARS-CoV-2 RNA into wastewater based on four infectious shedding models. With a total of 5 and 10 COVID-19 infectious cases per 100,000 population (0.005% and 0.01% prevalence) the predicated probability of SARS-CoV-2 RNA detection at the WWTP was estimated to be 28 and 41%, respectively. When a proportional shedding model was used, this increased to 58% and 87% for 5 and 10 cases, respectively. In other words, when 10 individuals were actively shedding SARS-CoV-2 RNA in a catchment of 100,000 individuals, there was a high likelihood of detecting viral RNA in wastewater. SARS-CoV-2 RNA detections at the WWTP were associated with increasing COVID-19 cases. Our results show that WBE provides a reliable and sensitive platform for detecting infections at the community scale, even when case prevalence is low, and can be of use as an early warning system for community outbreaks.
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Affiliation(s)
- Joanne Hewitt
- Institute of Environmental Science and Research Ltd, 34 Kenepuru Drive, Porirua, 5240, New Zealand.
| | - Sam Trowsdale
- School of Environment, University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
| | - Bridget A Armstrong
- Institute of Environmental Science and Research Ltd, 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
| | - Joanne R Chapman
- Institute of Environmental Science and Research Ltd, 34 Kenepuru Drive, Porirua, 5240, New Zealand
| | - Kirsten M Carter
- Institute of Environmental Science and Research Ltd, 34 Kenepuru Drive, Porirua, 5240, New Zealand
| | - Dawn M Croucher
- Institute of Environmental Science and Research Ltd, 34 Kenepuru Drive, Porirua, 5240, New Zealand
| | - Cassandra R Trent
- Watercare Services Limited, 52 Aintree Ave, Airport Oaks, Auckland, New Zealand
| | - Rosemary E Sim
- Watercare Services Limited, 52 Aintree Ave, Airport Oaks, Auckland, New Zealand
| | - Brent J Gilpin
- Institute of Environmental Science and Research Ltd, 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
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14
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Brem J, Panduwawala T, Hansen JU, Hewitt J, Liepins E, Donets P, Espina L, Farley AJM, Shubin K, Campillos GG, Kiuru P, Shishodia S, Krahn D, Leśniak RK, Schmidt Adrian J, Calvopiña K, Turrientes MC, Kavanagh ME, Lubriks D, Hinchliffe P, Langley GW, Aboklaish AF, Eneroth A, Backlund M, Baran AG, Nielsen EI, Speake M, Kuka J, Robinson J, Grinberga S, Robinson L, McDonough MA, Rydzik AM, Leissing TM, Jimenez-Castellanos JC, Avison MB, Da Silva Pinto S, Pannifer AD, Martjuga M, Widlake E, Priede M, Hopkins Navratilova I, Gniadkowski M, Belfrage AK, Brandt P, Yli-Kauhaluoma J, Bacque E, Page MGP, Björkling F, Tyrrell JM, Spencer J, Lang PA, Baranczewski P, Cantón R, McElroy SP, Jones PS, Baquero F, Suna E, Morrison A, Walsh TR, Schofield CJ. Imitation of β-lactam binding enables broad-spectrum metallo-β-lactamase inhibitors. Nat Chem 2022; 14:15-24. [PMID: 34903857 DOI: 10.1038/s41557-021-00831-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [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: 12/12/2020] [Accepted: 09/30/2021] [Indexed: 11/08/2022]
Abstract
Carbapenems are vital antibiotics, but their efficacy is increasingly compromised by metallo-β-lactamases (MBLs). Here we report the discovery and optimization of potent broad-spectrum MBL inhibitors. A high-throughput screen for NDM-1 inhibitors identified indole-2-carboxylates (InCs) as potential β-lactamase stable β-lactam mimics. Subsequent structure-activity relationship studies revealed InCs as a new class of potent MBL inhibitor, active against all MBL classes of major clinical relevance. Crystallographic studies revealed a binding mode of the InCs to MBLs that, in some regards, mimics that predicted for intact carbapenems, including with respect to maintenance of the Zn(II)-bound hydroxyl, and in other regards mimics binding observed in MBL-carbapenem product complexes. InCs restore carbapenem activity against multiple drug-resistant Gram-negative bacteria and have a low frequency of resistance. InCs also have a good in vivo safety profile, and when combined with meropenem show a strong in vivo efficacy in peritonitis and thigh mouse infection models.
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Affiliation(s)
- Jürgen Brem
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK.
| | - Tharindi Panduwawala
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | | | - Joanne Hewitt
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
| | | | - Pawel Donets
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Laura Espina
- Department of Medical Microbiology, Institute of infection & Immunity, Cardiff University, Cardiff, UK
| | - Alistair J M Farley
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Kirill Shubin
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Gonzalo Gomez Campillos
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Paula Kiuru
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Shifali Shishodia
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Daniel Krahn
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Robert K Leśniak
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Juliane Schmidt Adrian
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Karina Calvopiña
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - María-Carmen Turrientes
- Department of Microbiology, Ramón y Cajal University Hospital and Ramón y Cajal Institute for Health Research (IRYCIS), Madrid, Spain
| | - Madeline E Kavanagh
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | | | - Philip Hinchliffe
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Gareth W Langley
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
- Charles River Laboratories, Saffron Walden, UK
| | - Ali F Aboklaish
- Department of Medical Microbiology, Institute of infection & Immunity, Cardiff University, Cardiff, UK
| | - Anders Eneroth
- Department of Pharmacy, Uppsala Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Uppsala University, Uppsala, Sweden
| | - Maria Backlund
- Department of Pharmacy, Uppsala Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Uppsala University, Uppsala, Sweden
| | | | | | - Michael Speake
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | - Janis Kuka
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - John Robinson
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | | | - Lindsay Robinson
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | - Michael A McDonough
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Anna M Rydzik
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
- Research and Early Development, Respiratory & Immunology, AstraZeneca, Mölndal, Sweden
| | - Thomas M Leissing
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Juan Carlos Jimenez-Castellanos
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
- Chemical Biology of Antibiotics, Centre for Infection & Immunity (CIIL), Pasteur Institute, INSERM U1019 - CNRS UMR 9017, Lille, France
| | - Matthew B Avison
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Solange Da Silva Pinto
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Andrew D Pannifer
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
| | | | - Emma Widlake
- Department of Medical Microbiology, Institute of infection & Immunity, Cardiff University, Cardiff, UK
| | | | | | - Marek Gniadkowski
- Department of Molecular Microbiology, National Medicines Institute, Warsaw, Poland
| | - Anna Karin Belfrage
- Department of Medicinal Chemistry, Drug Design and Discovery, Uppsala University, Uppsala, Sweden
| | - Peter Brandt
- Department of Medicinal Chemistry, Drug Design and Discovery, Uppsala University, Uppsala, Sweden
- Beactica Therapeutics AB, Uppsala, Sweden
| | - Jari Yli-Kauhaluoma
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Eric Bacque
- Evotec Infectious Diseases Lyon, Marcy l'Etoile, France
| | | | - Fredrik Björkling
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Jonathan M Tyrrell
- Department of Medical Microbiology, Institute of infection & Immunity, Cardiff University, Cardiff, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - James Spencer
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Pauline A Lang
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK
| | - Pawel Baranczewski
- Department of Pharmacy, SciLifeLab Drug Discovery and Development Platform, ADME of Therapeutics Facility, Uppsala University, Uppsala, Sweden
| | - Rafael Cantón
- Department of Microbiology, Ramón y Cajal University Hospital and Ramón y Cajal Institute for Health Research (IRYCIS), Madrid, Spain
| | - Stuart P McElroy
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | - Philip S Jones
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | - Fernando Baquero
- Department of Microbiology, Ramón y Cajal University Hospital and Ramón y Cajal Institute for Health Research (IRYCIS), Madrid, Spain
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Angus Morrison
- University of Dundee, European Screening Centre, BioCity Scotland, Newhouse, UK
- BioAscent Discovery Ltd, Newhouse, UK
| | - Timothy R Walsh
- Department of Medical Microbiology, Institute of infection & Immunity, Cardiff University, Cardiff, UK
| | - Christopher J Schofield
- Department of Chemistry, Chemistry Research Laboratory and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, UK.
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15
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Gyawali P, Devane M, Scholes P, Hewitt J. Application of crAssphage, F-RNA phage and pepper mild mottle virus as indicators of human faecal and norovirus contamination in shellfish. Sci Total Environ 2021; 783:146848. [PMID: 33865125 DOI: 10.1016/j.scitotenv.2021.146848] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Shellfish growing waters contaminated with inadequately treated human wastewater is a major source of norovirus in shellfish and poses a significant human health risk to consumers. Microbial source tracking (MST) markers have been widely used to identify the source (s) of faecal contamination in water but data are limited on their use for shellfish safety. This study evaluated the source specificity, sensitivity, occurrence and concentration of three viral MST markers i.e. cross-assembly phage (crAssphage), F-specific RNA bacteriophage genogroup II (F-RNA phage GII) and pepper mild mottle virus (PMMoV) using animal faeces (n = 119; 16 animal groups), influent wastewater (n = 12), effluent wastewater (n = 16) and shellfish (n = 33). CrAssphage, F-RNA phage GII and PMMoV had source specific values of 0.97, 0.99 and 0.91, respectively. The sensitivity of MST markers was confirmed by their 100% detection frequency in influent wastewaters. The frequency of detection in effluent wastewater ranged from 81.3% (F-RNA phage GII) to 100% (PMMoV). Concentration of F-RNA phage GII was one log10 (influent wastewater) and 2-3 log10 (effluent wastewater) lower than crAssphage and PMMoV, respectively. Despite lower prevalence of F-RNA phage GII in oysters and mussels compared to crAssphage and PMMoV, concentrations of the three MST markers were similar in mussels. As an indicator of norovirus contamination in shellfish, crAssphage and PMMoV had greater predictive sensitivity (100%; [95% CI; 81.5%-100%)]) and F-RNA phage GII had greater predictive specificity (93.3%; [95% CI; 68.1%-99.8%]). In contrast, crAssphage and F-RNA phage GII have similar accuracy for predicting norovirus in shellfish, however, PMMoV significantly overestimated its presence. Therefore, a combination of crAssphage and F-RNA phage GII analysis of shellfish could provide a robust estimation of the presence of human faecal and norovirus contamination.
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Affiliation(s)
- Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Porirua 5240, New Zealand.
| | - Megan Devane
- Institute of Environmental Science and Research Ltd (ESR), Christchurch 8041, New Zealand
| | - Paula Scholes
- Institute of Environmental Science and Research Ltd (ESR), Christchurch 8041, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Porirua 5240, New Zealand.
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16
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Cannon JL, Bonifacio J, Bucardo F, Buesa J, Bruggink L, Chan MCW, Fumian TM, Giri S, Gonzalez MD, Hewitt J, Lin JH, Mans J, Muñoz C, Pan CY, Pang XL, Pietsch C, Rahman M, Sakon N, Selvarangan R, Browne H, Barclay L, Vinjé J. Global Trends in Norovirus Genotype Distribution among Children with Acute Gastroenteritis. Emerg Infect Dis 2021; 27:1438-1445. [PMID: 33900173 PMCID: PMC8084493 DOI: 10.3201/eid2705.204756] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Noroviruses are a leading cause of acute gastroenteritis (AGE) among adults and children worldwide. NoroSurv is a global network for norovirus strain surveillance among children <5 years of age with AGE. Participants in 16 countries across 6 continents used standardized protocols for dual typing (genotype and polymerase type) and uploaded 1,325 dual-typed sequences to the NoroSurv web portal during 2016-2020. More than 50% of submitted sequences were GII.4 Sydney[P16] or GII.4 Sydney[P31] strains. Other common strains included GII.2[P16], GII.3[P12], GII.6[P7], and GI.3[P3] viruses. In total, 22 genotypes and 36 dual types, including GII.3 and GII.20 viruses with rarely reported polymerase types, were detected, reflecting high strain diversity. Surveillance data captured in NoroSurv enables the monitoring of trends in norovirus strains associated childhood AGE throughout the world on a near real-time basis.
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17
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Gyawali P, Karpe AV, Hillyer KE, Nguyen TV, Hewitt J, Beale DJ. A multi-platform metabolomics approach to identify possible biomarkers for human faecal contamination in Greenshell™ mussels (Perna canaliculus). Sci Total Environ 2021; 771:145363. [PMID: 33736167 DOI: 10.1016/j.scitotenv.2021.145363] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 11/13/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Bivalve molluscs have the potential to bioaccumulate microbial pathogens including noroviruses from aquatic environments and as such, there is a need for a rapid and cheap in-situ method for their detection. Here, we characterise the tissue-specific response of New Zealand Greenshell™ mussels (Perna canaliculus) to faecal contamination from two different sources (municipal sewage and human faeces). This is done with the view to identify potential biomarkers that could be further developed into low cost, rapid and sensitive in-situ biosensors for human faecal contamination detection of mussels in growing areas. Tissue-specific metabolic profiles from gills, haemolymph and digestive glands were analysed using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). Clear differentiation of metabolic profiles was observed among treatments in each tissue type. Overall, energy pathways such as glycolysis, citrate cycle and oxidative phosphorylation were downregulated across the three mussel tissues studied following simulated contamination events. Conversely, considerable sterol upregulation in the gills was observed after exposure to contamination. Additionally, free pools of nucleotide phosphates and the antioxidant glutathione declined considerably post-exposure to contamination in gills. These results provide important insights into the tissue-specific metabolic effects of human faecal contamination in mussels. This study demonstrates the utility of metabolomics as a tool for identifying potential biomarkers in mussels.
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Affiliation(s)
- Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Porirua 5240, New Zealand.
| | - Avinash V Karpe
- Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Ecosciences Precinct, 41 Boggo Road, Qld 4102, Australia
| | - Katie E Hillyer
- Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Ecosciences Precinct, 41 Boggo Road, Qld 4102, Australia
| | - Thao V Nguyen
- Aquaculture Biotechnology Research Group, School of Science, Auckland University of Technology, Auckland, New Zealand; Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Ecosciences Precinct, 41 Boggo Road, Qld 4102, Australia
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Porirua 5240, New Zealand
| | - David J Beale
- Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Ecosciences Precinct, 41 Boggo Road, Qld 4102, Australia.
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18
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Pang L, Farkas K, Lin S, Hewitt J, Premaratne A, Close M. Attenuation and transport of human enteric viruses and bacteriophage MS2 in alluvial sand and gravel aquifer media-laboratory studies. Water Res 2021; 196:117051. [PMID: 33774351 DOI: 10.1016/j.watres.2021.117051] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Potable groundwater contamination by human enteric viruses poses serious health risks. Our understanding of virus subsurface transport has largely depended on studying bacteriophages as surrogates. Few studies have compared the transport behaviour of enteric viruses, especially norovirus, with phage surrogates. We conducted laboratory column experiments to investigate norovirus and bacteriophage MS2 (MS2) filtration in alluvial sand, and rotavirus, adenovirus and MS2 filtration in alluvial gravel aquifer media in 2 mM NaCl (pH 6.6-6.9) with pore velocities of 4.6-5.4 m/day. The data were analysed using colloid filtration theory and HYDRUS-1D 2-site attachment-detachment modelling. Norovirus removal was somewhat lower than MS2 removal in alluvial sand. The removal of rotavirus and adenovirus was markedly greater than MS2 removal in alluvial gravel. These findings concurred with the log10 reduction values, mass recoveries, attachment efficiencies and irreversible deposition rate constants. The modelling results suggested that the MS2 detachment rates were in the same order of magnitude as norovirus, but they were 1 order of magnitude faster than those of rotavirus and adenovirus. The attachment of viruses and MS2 was largely reversible with faster detachment than attachment rates, favouring free virus transport. These findings highlight the risk associated with continual virus transport through subsurface media if viruses are not inactivated and remobilising previously attached viruses could trigger contamination events. Thus, virus attachment reversibility should be considered in virus transport predictions in subsurface media. Further research is needed to compare surrogates with enteric viruses, especially norovirus, regarding their transport behaviours under different experimental conditions.
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Affiliation(s)
- Liping Pang
- Institute of Environmental Science & Research, Christchurch Science Centre, PO Box 29181, Christchurch 8540, New Zealand.
| | - Kata Farkas
- Institute of Environmental Science & Research, Christchurch Science Centre, PO Box 29181, Christchurch 8540, New Zealand; School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand; School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, LL59 5AB, UK
| | - Susan Lin
- Institute of Environmental Science & Research, Christchurch Science Centre, PO Box 29181, Christchurch 8540, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science & Research, Kenepuru Science Centre, PO Box 50348, Porirua, New Zealand
| | - Aruni Premaratne
- Institute of Environmental Science & Research, Christchurch Science Centre, PO Box 29181, Christchurch 8540, New Zealand
| | - Murray Close
- Institute of Environmental Science & Research, Christchurch Science Centre, PO Box 29181, Christchurch 8540, New Zealand
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19
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Ahmed W, Bibby K, D'Aoust PM, Delatolla R, Gerba CP, Haas CN, Hamilton KA, Hewitt J, Julian TR, Kaya D, Monis P, Moulin L, Naughton C, Noble RT, Shrestha A, Tiwari A, Simpson SL, Wurtzer S, Bivins A. Differentiating between the possibility and probability of SARS-CoV-2 transmission associated with wastewater: empirical evidence is needed to substantiate risk. FEMS Microbes 2021; 2:xtab007. [PMID: 38626275 PMCID: PMC8135732 DOI: 10.1093/femsmc/xtab007] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/30/2021] [Indexed: 12/23/2022] Open
Affiliation(s)
- Warish Ahmed
- CSIRO Land and Water, Ecosciences Precinct, 41 Boggo Road, QLD 4102, Australia
| | - Kyle Bibby
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, IN 46556, USA
| | - Patrick M D'Aoust
- Department of Civil Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Robert Delatolla
- Department of Civil Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Charles P Gerba
- Department of Environmental Science, Water and Energy Sustainable Technology Center, University of Arizona, 2959 W. Calle Agua Nueva, Tucson, AZ 85745, USA
| | | | - Kerry A Hamilton
- School of Sustainable Engineering and the Built Environment and the Biodesign Institute Center for Environmental Health Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand
| | - Timothy R Julian
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf CH-8600, Switzerland
| | - Devrim Kaya
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, 105 SW 26th St #116, Corvallis, OR 97331, USA
| | - Paul Monis
- South Australian Water Corporation, Adelaide, Australia
| | - Laurent Moulin
- Eau de Paris R&D Laboratory. 33 Av. Jean Jaures 94200 Ivry/seine, France
| | - Colleen Naughton
- University of California Merced Department of Civil and Environmental Engineering, 5200 N, Lake Rd. Merced, CA 95343, USA
| | - Rachel T Noble
- University of North Carolina Institute of Marine Sciences, Morehead City, NC, USA
| | - Abhilasha Shrestha
- Division of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Ananda Tiwari
- Finnish Institute for Health and Welfare, Expert Microbiology Unit, Kuopio, Finland
| | | | - Sebastien Wurtzer
- Eau de Paris R&D Laboratory. 33 Av. Jean Jaures 94200 Ivry/seine, France
| | - Aaron Bivins
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, IN 46556, USA
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20
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Smith A, Hewitt J, Quinn TJ, Robling M. Patient-reported outcome measures (PROMs) use in post-stroke patient care and clinical practice: a realist synthesis protocol. Syst Rev 2021; 10:128. [PMID: 33910631 PMCID: PMC8082773 DOI: 10.1186/s13643-021-01682-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/12/2020] [Accepted: 04/20/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND There is growing interest in the use of routine patient-reported outcome measures (PROMs) to influence the care of individual patients with stroke. However, there are significant gaps in our understanding as to how PROMs influence post-stroke patient care and clinical practice. This is due to factors including the number of purported uses for PROMs and that PROMs are complex interventions, which attempt to stimulate varied actions or behaviours. Therefore, the objective of this realist synthesis is to offer theory-based explanations as to how PROMs influence post-stroke clinical practice and patient care. METHODS This is a protocol for a realist synthesis, which involves three distinct phases: theory building (phase 1), theory testing and refinement (phase 2) and synthesis (phase 3). Phase 1 will develop initial rough programme theories (IRPTs), through literature searches (from January 2000 onwards) of MEDLINE, EMBASE, PsycINFO, CINAHL, Cochrane Library and the grey literature. Only secondary sources will be included that contribute to the development of IRPTs. Only two IRPTs, prioritised by the stakeholder group, will be taken forward to be tested and refined during phase 2. Further novel searches will be employed in phase 2, utilising the same criteria as phase 1; however, phase 2 searches will not utilise grey literature searches, and only primary research studies that contribute to the refinement of programme theories under investigation will be included. Two independent reviewers will screen and select all returned results. The reviewers will code and annotate relevant sources, resulting in 'fragments' to be extracted and graded based on the richness of their contribution to explanation and causal insight. Further, these fragments will be organised into 'Context-Mechanism-Outcome' configurations. Phase 3 of the review will involve the synthesis of context-mechanism-outcome configurations to form middle-range theory-based explanations and developed logic models for stakeholders to understand how PROMs in post-stroke clinical practice and patient care work for whom, how and under what circumstances. DISCUSSION The resulting realist synthesis will provide guidance on the implementation of PROMs within routine post-stroke clinical practice and patient care and act as a touchstone for further testing and refinement of PROMs programmes. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020138649 .
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Affiliation(s)
- A Smith
- Division of Population Medicine, Cardiff University, Cardiff, UK.
| | - J Hewitt
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - T J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - M Robling
- Centre for Trials Research, Cardiff University, Cardiff, UK
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21
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Zhang H, Liu D, Zhang Z, Hewitt J, Li X, Hou P, Wang D, Wu Q. Surveillance of human norovirus in oysters collected from production area in Shandong Province, China during 2017–2018. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107649] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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22
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Vilches-Moraga A, Price A, Braude P, Pearce L, Short R, Verduri A, Stechman M, Collins JT, Mitchell E, Einarsson AG, Moug SJ, Quinn TJ, Stubbs B, McCarthy K, Myint PK, Hewitt J, Carter B. Increased care at discharge from COVID-19: The association between pre-admission frailty and increased care needs after hospital discharge; a multicentre European observational cohort study. BMC Med 2020; 18:408. [PMID: 33334341 PMCID: PMC7746415 DOI: 10.1186/s12916-020-01856-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has placed significant pressure on health and social care. Survivors of COVID-19 may be left with substantial functional deficits requiring ongoing care. We aimed to determine whether pre-admission frailty was associated with increased care needs at discharge for patients admitted to hospital with COVID-19. METHODS Patients were included if aged over 18 years old and admitted to hospital with COVID-19 between 27 February and 10 June 2020. The Clinical Frailty Scale (CFS) was used to assess pre-admission frailty status. Admission and discharge care levels were recorded. Data were analysed using a mixed-effects logistic regression adjusted for age, sex, smoking status, comorbidities, and admission CRP as a marker of severity of disease. RESULTS Thirteen hospitals included patients: 1671 patients were screened, and 840 were excluded including, 521 patients who died before discharge (31.1%). Of the 831 patients who were discharged, the median age was 71 years (IQR, 58-81 years) and 369 (44.4%) were women. The median length of hospital stay was 12 days (IQR 6-24). Using the CFS, 438 (47.0%) were living with frailty (≥ CFS 5), and 193 (23.2%) required an increase in the level of care provided. Multivariable analysis showed that frailty was associated with an increase in care needs compared to patients without frailty (CFS 1-3). The adjusted odds ratios (aOR) were as follows: CFS 4, 1.99 (0.97-4.11); CFS 5, 3.77 (1.94-7.32); CFS 6, 4.04 (2.09-7.82); CFS 7, 2.16 (1.12-4.20); and CFS 8, 3.19 (1.06-9.56). CONCLUSIONS Around a quarter of patients admitted with COVID-19 had increased care needs at discharge. Pre-admission frailty was strongly associated with the need for an increased level of care at discharge. Our results have implications for service planning and public health policy as well as a person's functional outcome, suggesting that frailty screening should be utilised for predictive modelling and early individualised discharge planning.
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Affiliation(s)
- A Vilches-Moraga
- Faculty of Medical and Human Services, University of Manchester, Manchester, England
- Salford Royal Hospital Foundation Trust, Salford, England
| | - A Price
- Salford Royal Hospital Foundation Trust, Salford, England
| | - P Braude
- North Bristol NHS Trust, Bristol, England
| | - L Pearce
- Faculty of Medical and Human Services, University of Manchester, Manchester, England
- Salford Royal Hospital Foundation Trust, Salford, England
| | - R Short
- Department of Biostatistics and Health Informatics, King's College London, London, England
| | - A Verduri
- University Hospital of Modena Policlinico, University of Modena and Reggio Emilia, Modena, Italy
| | - M Stechman
- University Hospital of Wales, Cardiff University, Cardiff, Wales
| | - J T Collins
- Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Newport, Wales
| | - E Mitchell
- North Bristol NHS Trust, Bristol, England
| | | | - S J Moug
- Royal Alexandra Hospital, Paisley, Scotland
| | - T J Quinn
- Glasgow Royal Infirmary, Glasgow, Scotland
| | - B Stubbs
- Physiotherapy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill, London, UK
| | - K McCarthy
- North Bristol NHS Trust, Bristol, England
| | - P K Myint
- University of Aberdeen, Aberdeen, Scotland
| | - J Hewitt
- Aneurin Bevan Health Board, Cardiff University, Cardiff, Wales
| | - B Carter
- Department of Biostatistics and Health Informatics, King's College London, London, England.
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23
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Ahmed W, Bertsch PM, Bibby K, Haramoto E, Hewitt J, Huygens F, Gyawali P, Korajkic A, Riddell S, Sherchan SP, Simpson SL, Sirikanchana K, Symonds EM, Verhagen R, Vasan SS, Kitajima M, Bivins A. Decay of SARS-CoV-2 and surrogate murine hepatitis virus RNA in untreated wastewater to inform application in wastewater-based epidemiology. Environ Res 2020; 191:110092. [PMID: 32861728 PMCID: PMC7451058 DOI: 10.1016/j.envres.2020.110092] [Citation(s) in RCA: 229] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/15/2020] [Accepted: 08/16/2020] [Indexed: 05/17/2023]
Abstract
Wastewater-based epidemiology (WBE) demonstrates potential for COVID-19 community transmission monitoring; however, data on the stability of SARS-CoV-2 RNA in wastewater are needed to interpret WBE results. The decay rates of RNA from SARS-CoV-2 and a potential surrogate, murine hepatitis virus (MHV), were investigated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in untreated wastewater, autoclaved wastewater, and dechlorinated tap water stored at 4, 15, 25, and 37 °C. Temperature, followed by matrix type, most greatly influenced SARS-CoV-2 RNA first-order decay rates (k). The average T90 (time required for 1-log10 reduction) of SARS-CoV-2 RNA ranged from 8.04 to 27.8 days in untreated wastewater, 5.71 to 43.2 days in autoclaved wastewater, and 9.40 to 58.6 days in tap water. The average T90 for RNA of MHV at 4 to 37 °C ranged from 7.44 to 56.6 days in untreated wastewater, 5.58-43.1 days in autoclaved wastewater, and 10.9 to 43.9 days in tap water. There was no statistically significant difference between RNA decay of SARS-CoV-2 and MHV; thus, MHV is suggested as a suitable persistence surrogate. Decay rate constants for all temperatures were comparable across all matrices for both viral RNAs, except in untreated wastewater for SARS-CoV-2, which showed less sensitivity to elevated temperatures. Therefore, SARS-CoV-2 RNA is likely to persist long enough in untreated wastewater to permit reliable detection for WBE application.
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Affiliation(s)
- Warish Ahmed
- CSIRO Land and Water, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD, 4102, Australia.
| | - Paul M Bertsch
- CSIRO Land and Water, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD, 4102, Australia
| | - Kyle Bibby
- Department of Civil & Environmental Engineering & Earth Sciences, 156 Fitzpatrick Hall, University of Notre Dame, Notre Dame, IN, 46656, USA
| | - Eiji Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, 4 - 3 -11 Takeda, Kofu, Yamanashi, 400 -8511, Japan
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand
| | - Flavia Huygens
- Centre for Immunology and Infection Control, Queensland University of Technology, 300 Herston Road, Herston, QLD, 4006, Australia
| | - Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand
| | - Asja Korajkic
- United States Environmental Protection Agency, Office of Research and Development, 26W Martin Luther King Jr. Drive, Cincinnati, OH, 45268, USA
| | - Shane Riddell
- CSIRO Australian Centre for Disease Preparedness, Geelong, VIC, 3220, Australia
| | - Samendra P Sherchan
- Department of Environmental Health Sciences, Tulane University, 1440 Canal Street, New Orleans, LA, 70112, USA
| | | | | | - Erin M Symonds
- College of Marine Science, University of South Florida, 140 Seventh Avenue South, St. Petersburg, FL, 33701, USA
| | - Rory Verhagen
- Queensland Alliance for Environmental Health Sciences (QAEHS), University of Queensland, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia
| | - Seshadri S Vasan
- CSIRO Australian Centre for Disease Preparedness, Geelong, VIC, 3220, Australia; Department of Health Sciences, University of York, York, YO10 5DD, UK
| | - Masaaki Kitajima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North West 8, Kita-ku, Sapporo, Hokkaido, 060-0032, Japan
| | - Aaron Bivins
- Department of Civil & Environmental Engineering & Earth Sciences, 156 Fitzpatrick Hall, University of Notre Dame, Notre Dame, IN, 46656, USA
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24
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Sanyaolu L, Scholz AFM, Mayo I, Coode-Bate J, Oldroyd C, Carter B, Quinn T, Hewitt J. Risk factors for incident delirium among urological patients: a systematic review and meta-analysis with GRADE summary of findings. BMC Urol 2020; 20:169. [PMID: 33109133 PMCID: PMC7590461 DOI: 10.1186/s12894-020-00743-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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] [Received: 04/17/2020] [Accepted: 10/14/2020] [Indexed: 12/02/2022] Open
Abstract
Background Post-operative delirium is an important, yet under-researched complication of surgery. Patients undergoing urological surgery may be at especially high risk of POD, as they are often older, and interventions can be associated with conditions that trigger delirium. The main aim of this systematic review was to evaluate the available evidence for risk factors in this patient group. Methods Five databases were searched (MEDLINE, Web of Science, EMBASE, CINAHL and PsychInfo) between January 1987 and June 2019. The Newcastle–Ottawa Scale was used to assess for risk of bias. Pooled odds ratio or mean difference (MD) for individual risk factors were estimated using the Mantel–Haenzel and inverse variance methods. Results Seven articles met the inclusion criteria, giving a total population of 1937. The incidence of POD ranged from 5 to 29%. Three studies were deemed low risk of bias and four at a high risk of bias. Nine risk factors were suitable for meta-analysis, with age (MD 4.314 95% CI 1.597, 7.032 p = 0.002) and the clock drawing test (MD − 2.443 95% CI − 3.029, − 1.857 p < 0.001) having a statistically significant association with POD in pooled analyses. Conclusion Delirium is common in urological patients. This review has identified a lack of studies in this surgical population, with wide heterogeneity and high risk of bias. It also highlights a number of potential risk factors for post-operative delirium, of which some are modifiable. However, the strength of evidence is weak at present and so future research should focus on assessing comparable risk factors in this patient group in order to inform future clinical practice. Review registration The review protocol was prospectively registered with the PROSPERO database (reference CRD42017054613)
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Affiliation(s)
- L Sanyaolu
- Division of Population Medicine, Cardiff University, Cardiff, UK.
| | - A F M Scholz
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - I Mayo
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | | | - C Oldroyd
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,Cochrane Skin Group, School of Medicine, The University of Nottingham, Nottingham, UK
| | - T Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - J Hewitt
- Division of Population Medicine, Cardiff University, Cardiff, UK
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25
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McCarthy K, Myint PK, Moug S, Pearce L, Braude P, Vilches-Moraga A, Hewitt J, Carter B. Resumption of elective colorectal surgery during COVID-19 and risk of death. Colorectal Dis 2020; 22:1026-1027. [PMID: 32726872 DOI: 10.1111/codi.15282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 02/08/2023]
Affiliation(s)
- K McCarthy
- Department of General Surgery, North Bristol NHS Trust, Bristol, UK
| | - P K Myint
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - S Moug
- General Surgery, Royal Alexandra Hospital, Paisley, UK
| | - L Pearce
- General Surgery, Salford Royal NHS Foundation Trust, Salford, UK
| | - P Braude
- Geriatric Medicine, North Bristol NHS Trust, Bristol, UK
| | - A Vilches-Moraga
- Ageing and Complex Medicine Department, Salford Royal NHS Foundation Trust, Salford, UK
| | - J Hewitt
- Geriatric Medicine, Cardiff University, Cardiff, UK
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, King's College London, London, UK
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26
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Carter B, Collins JT, Barlow-Pay F, Rickard F, Bruce E, Verduri A, Quinn TJ, Mitchell E, Price A, Vilches-Moraga A, Stechman MJ, Short R, Einarsson A, Braude P, Moug S, Myint PK, Hewitt J, Pearce L, McCarthy K. Nosocomial COVID-19 infection: examining the risk of mortality. The COPE-Nosocomial Study (COVID in Older PEople). J Hosp Infect 2020; 106:376-384. [PMID: 32702463 PMCID: PMC7372282 DOI: 10.1016/j.jhin.2020.07.013] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [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: 06/10/2020] [Accepted: 07/13/2020] [Indexed: 01/08/2023]
Abstract
Background Hospital admissions for non-coronavirus disease 2019 (COVID-19) pathology have decreased significantly. It is believed that this may be due to public anxiety about acquiring COVID-19 infection in hospital and the subsequent risk of mortality. Aim To identify patients who acquire COVID-19 in hospital (nosocomial COVID-19 infection (NC)) and their risk of mortality compared to those with community-acquired COVID-19 (CAC) infection. Methods The COPE-Nosocomial Study was an observational cohort study. The primary outcome was the time to all-cause mortality (estimated with an adjusted hazard ratio (aHR)), and secondary outcomes were day 7 mortality and the time-to-discharge. A mixed-effects multivariable Cox's proportional hazards model was used, adjusted for demographics and comorbidities. Findings The study included 1564 patients from 10 hospital sites throughout the UK, and one in Italy, and collected outcomes on patients admitted up to April 28th, 2020. In all, 12.5% of COVID-19 infections were acquired in hospital; 425 (27.2%) patients with COVID died. The median survival time in NC patients was 14 days compared with 10 days in CAC patients. In the primary analysis, NC infection was associated with lower mortality rate (aHR: 0.71; 95% confidence interval (CI): 0.51–0.98). Secondary outcomes found no difference in day 7 mortality (adjusted odds ratio: 0.79; 95% CI: 0.47–1.31), but NC patients required longer time in hospital during convalescence (aHR: 0.49, 95% CI: 0.37–0.66). Conclusion The minority of COVID-19 cases were the result of NC transmission. No COVID-19 infection comes without risk, but patients with NC had a lower risk of mortality compared to CAC infection; however, caution should be taken when interpreting this finding.
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Affiliation(s)
- B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - J T Collins
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Cardiff, UK
| | | | - F Rickard
- North Bristol NHS Trust, Bristol, UK
| | - E Bruce
- Institute of Applied Health Sciences, University of Aberdeen, UK
| | - A Verduri
- Hospital of Modena Policlinico, Modena, Italy
| | - T J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - E Mitchell
- Department of Geriatric Medicine, North Bristol NHS Trust, Bristol, UK
| | - A Price
- Salford Royal NHS Trust, Salford, UK
| | - A Vilches-Moraga
- Department of Ageing and Complex Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - M J Stechman
- Department of Surgery, University Hospital of Wales, Cardiff, UK
| | - R Short
- Forensic & Neurodevelopmental Sciences, King's College London, London, UK
| | | | - P Braude
- Department of Geriatric Medicine, North Bristol NHS Trust, Bristol, UK
| | - S Moug
- Department of Surgery, Royal Alexandra Hospital, Paisley, UK
| | - P K Myint
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - J Hewitt
- Aneurin Bevan University Health Board, Cardiff, UK; Cardiff University, Cardiff, UK.
| | - L Pearce
- Department of Colorectal Surgery, Salford Royal NHS Foundation Trust, Manchester, UK
| | - K McCarthy
- Department of Surgery, North Bristol NHS Trust, Bristol, UK
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27
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Winiger E, Hewitt J. 0930 Prenatal Cannabis Use and Sleep Outcomes in Children 9-10 Years of Age in the Adolescence Brain Cognitive Development Study. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.926] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
The fetal brain is densely populated with CB1 receptors that increase in number throughout gestation and might be involved in sleep processes since they are found in many brain areas related to the regulation of the sleep-wake cycle. THC binds to CB1 receptors, possibly altering neurodevelopment and fetal cortical circuitry in the womb. Studies have found prenatal cannabis use is associated with early sleep factors from as early as few days after birth to 3 years of age, yet no studies have examined associations in later childhood.
Methods
We used data from the Adolescent Brain Cognitive Development (ABCD) study to determine whether maternal reports of cannabis use while pregnant were associated with child sleep outcomes (The Sleep Disturbance Scale for Children) among 11,875 children ages 9-10. Regression analyses accounted for the nested nature of families (twin and non-twin sibling) and were estimated controlling for potential covariates including daily tobacco and weekly alcohol use during pregnancy, mother’s education, combined household income, parental marital status, child sex, and child age.
Results
Amongst mothers in our sample, 6% endorsed using cannabis while pregnant. Prenatal cannabis use was associated with lower sleep duration, disorders of initiating and maintaining sleep, disorders of arousal, sleep wake disorders, disorders of excessive somnolence, and a summed sleep score (all b >0.09 and p < 0.04) but not with sleep latency, sleep breathing disorders, and sleep hyperhidrosis (all b <0.08 and p >0.09).
Conclusion
Prenatal cannabis use was associated with increased childhood sleep deficits including shorter sleep duration and higher endorsements of sleep disorder symptoms. This is the first report of prenatal cannabis use being associated with sleep in childhood as late as 9-10 years of age. Although causality is not established, the results suggest potential long-term effects of prenatal cannabis use on sleep and the need for abstinence from cannabis use while pregnant.
Support
T32 DA017637. The ABCD Study is supported by the National Institutes of Health and additional federal partners under award numbers U01DA041022, U01DA041028, U01DA041048, U01DA041089, U01DA041106, U01DA041117, U01DA041120, U01DA041134, U01DA041148, U01DA041156, U01DA041174, U24DA041123, U24DA041147, U01DA041093, and U01DA041025 (https:// abcdstudy.org/federal-partners.html).
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Affiliation(s)
- E Winiger
- Institute for Behavioral Genetics, Boulder, CO
| | - J Hewitt
- Institute for Behavioral Genetics, Boulder, CO
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Carter B, Law J, Hewitt J, Parmar KL, Boyle JM, Casey P, Maitra I, Pearce L, Moug SJ, Ross B, Oleksiewicz J, Fearnhead N, Jump C, Boyle J, Shaw A, Barker J, Hughes J, Randall J, Tonga I, Kynaston J, Boal M, Eardley N, Kane E, Reader H, Mahapatra SR, Garner-Jones M, Tan JJ, Mohamed S, George R, Whiteman E, Malik K, Smart CJ, Bogdan M, Chaudhury MP, Sharma V, Subar D, Patel P, Chok SM, Lim E, Adhiyaman V, Davies G, Ross E, Maitra R, Steele CW, Roxburgh C, Griffiths S, Blencowe NS, Kirkham EN, Abraham JS, Griffiths K, Abdulaal Y, Iqbal MR, Tarazi M, Hill J, Khan A, Farrell I, Conn G, Patel J, Reddy H, Sarveswaran J, Arunachalam L, Malik A, Ponchietti L, Pawelec K, Goh YM, Vitish-Sharma P, Saad A, Smyth E, Crees A, Merker L, Bashir N, Williams G, Hayes J, Walters K, Harries R, Singh R, Henderson NA, Polignano FM, Knight B, Alder L, Kenchington A, Goh YL, Dicurzio I, Griffiths E, Alani A, Knight K, MacGoey P, Ng GS, Mackenzie N, Maitra I, Moug S, Ong K, McGrath D, Gammeri E, Lafaurie G, Faulkner G, Di Benedetto G, McGovern J, Subramanian B, Narang SK, Nowers J, Smart NJ, Daniels IR, Varcada M, Gala T, Cornish J, Barber Z, O'Neill S, McGregor R, Robertson AG, Paterson-Brown S, Raymond T, Thaha MA, English WJ, Forde CT, Paine H, Morawala A, Date R, Casey P, Bolton T, Gleaves X, Fasuyi J, Durakovic S, Dunstan M, Allen S, Riga A, Epstein J, Pearce L, Gaines E, Howe A, Choonara H, Dewi F, Bennett J, King E, McCarthy K, Taylor G, Harris D, Nageswaran H, Stimpson A, Siddiqui K, Lim LI, Ray C, Smith L, McColl G, Rahman M, Kler A, Sharma A, Parmar K, Patel N, Crofts P, Baldari C, Thomas R, Stechman M, Aldridge R, O'Kelly J, Wilson G, Gallegos N, Kalaiselvan R, Rajaganeshan R, Mackenzie A, Naik P, Singh K, Gandraspulli H, Wilson J, Hancorn K, Khawaja A, Nicholas F, Marks T, Abbott C, Chandler S. Association between preadmission frailty and care level at discharge in older adults undergoing emergency laparotomy. Br J Surg 2020; 107:218-226. [DOI: 10.1002/bjs.11392] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/20/2019] [Accepted: 09/12/2019] [Indexed: 12/14/2022]
Abstract
Abstract
Background
Older adults undergoing emergency abdominal surgery have significantly poorer outcomes than younger adults. For those who survive, the level of care required on discharge from hospital is unknown and such information could guide decision-making. The ELF (Emergency Laparotomy and Frailty) study aimed to determine whether preoperative frailty in older adults was associated with increased dependence at the time of discharge.
Methods
The ELF study was a UK-wide multicentre prospective cohort study of older patients (65 years or more) undergoing emergency laparotomy during March and June 2017. The objective was to establish whether preoperative frailty was associated with increased care level at discharge compared with preoperative care level. The analysis used a multilevel logistic regression adjusted for preadmission frailty, patient age, sex and care level.
Results
A total of 934 patients were included from 49 hospitals. Mean(s.d.) age was 76·2(6·8) years, with 57·6 per cent women; 20·2 per cent were frail. Some 37·4 per cent of older adults had an increased care level at discharge. Increasing frailty was associated with increased discharge care level, with greater predictive power than age. The adjusted odds ratio for an increase in care level was 4·48 (95 per cent c.i. 2·03 to 9·91) for apparently vulnerable patients (Clinical Frailty Score (CFS) 4), 5·94 (2·54 to 13·90) for those mildly frail (CFS 5) and 7·88 (2·97 to 20·79) for those moderately or severely frail (CFS 6 or 7), compared with patients who were fit.
Conclusion
Over 37 per cent of older adults undergoing emergency laparotomy required increased care at discharge. Frailty scoring was a significant predictor, and should be integrated into all acute surgical units to aid shared decision-making and discharge planning.
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Affiliation(s)
- B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - J Law
- Department of Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
- Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, UK
| | - J Hewitt
- Department of Population Medicine, Cardiff University, Cardiff, UK
| | - K L Parmar
- Manchester Cancer Research Centre, Manchester, NorthWest Deanery, UK
| | - J M Boyle
- Royal College of Surgeons of England, London, UK
| | - P Casey
- Health Education North West, Manchester, NorthWest Deanery, UK
| | - I Maitra
- Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - L Pearce
- Department of Surgery, Salford Royal NHS Foundation Trust, Salford, UK
| | - S J Moug
- Department of Surgery, Royal Alexandra Hospital, Paisley, UK
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De Vita E, Smits N, van den Hurk H, Beck EM, Hewitt J, Baillie G, Russell E, Pannifer A, Hamon V, Morrison A, McElroy SP, Jones P, Ignatenko NA, Gunkel N, Miller AK. Synthesis and Structure-Activity Relationships of N-(4-Benzamidino)-Oxazolidinones: Potent and Selective Inhibitors of Kallikrein-Related Peptidase 6. ChemMedChem 2020; 15:79-95. [PMID: 31675166 PMCID: PMC7004151 DOI: 10.1002/cmdc.201900536] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/23/2019] [Indexed: 12/16/2022]
Abstract
Kallikrein-related peptidase 6 (KLK6) is a secreted serine protease that belongs to the family of tissue kallikreins. Aberrant expression of KLK6 has been found in different cancers and neurodegenerative diseases, and KLK6 is currently studied as a potential target in these pathologies. We report a novel series of KLK6 inhibitors discovered in a high-throughput screen within the European Lead Factory program. Structure-guided design based on docking studies enabled rapid progression of a hit cluster to inhibitors with improved potency, selectivity and pharmacokinetic properties. In particular, inhibitors 32 ((5R)-3-(4-carbamimidoylphenyl)-N-((S)-1-(naphthalen-1-yl)propyl)-2-oxooxazolidine-5-carboxamide) and 34 ((5R)-3-(6-carbamimidoylpyridin-3-yl)-N-((1S)-1-(naphthalen-1-yl)propyl)-2-oxooxazolidine-5-carboxamide) have single-digit nanomolar potency against KLK6, with over 25-fold and 100-fold selectivities against the closely related enzyme trypsin, respectively. The most potent compound, 32, effectively reduces KLK6-dependent invasion of HCT116 cells. The high potency in combination with good solubility and low clearance of 32 make it a good chemical probe for KLK6 target validation in vitro and potentially in vivo.
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Affiliation(s)
- Elena De Vita
- Cancer Drug Development GroupGerman Cancer Research Center (DKFZ)Im Neuenheimer Feld 28069120HeidelbergGermany
- Faculty of BiosciencesUniversity of Heidelberg69120HeidelbergGermany
| | - Niels Smits
- Pivot Park Screening CentreKloosterstraat 95349 ABOss (TheNetherlands
| | | | - Elizabeth M. Beck
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Joanne Hewitt
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Gemma Baillie
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Emily Russell
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Andrew Pannifer
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Véronique Hamon
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Angus Morrison
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Stuart P. McElroy
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Philip Jones
- European Screening Centre Newhouse (ESC) Biocity ScotlandBo'ness RoadML15UHNewhouseScotland
| | - Natalia A. Ignatenko
- University of Arizona Cancer CenterUniversity of ArizonaTucsonAZ 85721USA
- Department of Cellular and Molecular MedicineUniversity of ArizonaTucsonAZ 85721USA
| | - Nikolas Gunkel
- Cancer Drug Development GroupGerman Cancer Research Center (DKFZ)Im Neuenheimer Feld 28069120HeidelbergGermany
- German Cancer Consortium (DKTK)69120HeidelbergGermany
| | - Aubry K. Miller
- Cancer Drug Development GroupGerman Cancer Research Center (DKFZ)Im Neuenheimer Feld 28069120HeidelbergGermany
- German Cancer Consortium (DKTK)69120HeidelbergGermany
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Humphry N, Wilson T, Cox M, Hewitt J. 96SARCOPENIA, FRAILTY AND NUTRITIONAL STATUS OF COLORECTAL CANCER SURGICAL PATIENTS AND URINARY BIOMARKERS: STUDY PROTOCOL. Age Ageing 2019. [DOI: 10.1093/ageing/afz063.05] [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: 11/12/2022] Open
Affiliation(s)
- N Humphry
- Cardiff and Vale University Health Board
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31
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Gilpin R, Foreman T, Hewitt J. 107PATIENT RELATED OUTCOME MEASURES IN STROKE. Age Ageing 2019. [DOI: 10.1093/ageing/afz065.01] [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: 11/14/2022] Open
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Parmar KL, Law J, Carter B, Hewitt J, Boyle JM, Casey P, Maitra I, Farrell I, Pearce L, Moug SJ. 98FRAILTY IN OLDER PATIENTS UNDERGOING EMERGENCY LAPAROTOMY: FURTHER RESULTS FROM THE ELF STUDY (EMERGENCY LAPAROTOMY AND FRAILTY). Age Ageing 2019. [DOI: 10.1093/ageing/afz063.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - S J Moug
- Royal Alexandra Hospital, Paisley
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Gyawali P, Kc S, Beale DJ, Hewitt J. Current and Emerging Technologies for the Detection of Norovirus from Shellfish. Foods 2019; 8:foods8060187. [PMID: 31159220 PMCID: PMC6617275 DOI: 10.3390/foods8060187] [Citation(s) in RCA: 15] [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: 04/29/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 12/14/2022] Open
Abstract
Reports of norovirus infections associated with the consumption of contaminated bivalve molluscan shellfish negatively impact both consumers and commercial shellfish operators. Current virus recovery and PCR detection methods can be expensive and time consuming. Due to the lack of rapid, user-friendly and onsite/infield methods, it has been difficult to establish an effective virus monitoring regime that is able to identify contamination points across the production line (i.e., farm-to-plate) to ensure shellfish quality. The focus of this review is to evaluate current norovirus detection methods and discuss emerging approaches. Recent advances in omics-based detection approaches have the potential to identify novel biomarkers that can be incorporated into rapid detection kits for onsite use. Furthermore, some omics techniques have the potential to simultaneously detect multiple enteric viruses that cause human disease. Other emerging technologies discussed include microfluidic, aptamer and biosensor-based detection methods developed to detect norovirus with high sensitivity from a simple matrix. Many of these approaches have the potential to be developed as user-friendly onsite detection kits with minimal costs. However, more collaborative efforts on research and development will be required to commercialize such products. Once developed, these emerging technologies could provide a way forward that minimizes public health risks associated with shellfish consumption.
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Affiliation(s)
- Pradip Gyawali
- Institute of Environmental Science and Research Ltd. (ESR), Porirua 5240, New Zealand.
| | - Sanjaya Kc
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - David J Beale
- Commonwealth Scientific and Industrial Research Organization, Ecoscience Precinct, Dutton Park, QLD 4102, Australia.
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd. (ESR), Porirua 5240, New Zealand.
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Gyawali P, Croucher D, Ahmed W, Devane M, Hewitt J. Evaluation of pepper mild mottle virus as an indicator of human faecal pollution in shellfish and growing waters. Water Res 2019; 154:370-376. [PMID: 30822597 DOI: 10.1016/j.watres.2019.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 08/28/2018] [Revised: 01/08/2019] [Accepted: 02/02/2019] [Indexed: 05/21/2023]
Abstract
Bivalve molluscan shellfish grown in areas impacted by human faecal pollution are at risk of being contaminated with multiple enteric viruses. To minimise the public health risks associated with shellfish consumption, determining the presence of faecal contamination in shellfish and their growing waters is crucial. In this study, we evaluated the use of pepper mild mottle virus (PMMoV) as an indicator of human faecal contamination in oysters, mussels, cockles and shellfish growing waters in New Zealand. Using reverse transcription quantitative polymerase chain reaction (RT-qPCR) the presence, and where applicable, the concentration of PMMoV was determined in faeces from 11 different animal species, influent (untreated) wastewater, shellfish and shellfish growing waters. Non-human faecal samples (from seagull, Canada goose, black swan and dog) were RT-qPCR positive for PMMoV. The faecal source specificity of PMMoV was 0.83 (maximum value of 1) when 'detected but not quantifiable' (DNQ) values were used. However, when 'lower limit of quantification' (LLOQ) values were used, the specificity increased to 0.92. The PMMoV concentration in influent wastewater (n = 10) ranged from 6.3 to 7.7 log10 genome copies (GC)/L with a mean (±standard deviation) of 7.1 ± 0.5 log10 GC/L. The overall occurrence of PMMoV in shellfish and shellfish growing waters from four different areas was 46/51 (90%) and 29/52 (56%), respectively. Of the cockles collected from an area known to be impacted by effluent wastewater, 14/14 (100%) contained PMMoV concentrations above the LLOQ. In contrast, only 13/37 (35%) shellfish and 6/52 (11.5%) growing water samples collected from three areas with low anthropogenic impact contained PMMoV concentrations above the LLOQ. The high concentration of PMMoV in influent wastewater indicates that PMMoV may be a promising indicator of human faecal contamination. The presence of PMMoV in shellfish and growing waters with a low anthropogenic impact may be of avian origin, and this needs to be considered if using PMMoV for monitoring shellfish and shellfish growing water quality in New Zealand.
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Affiliation(s)
- Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand.
| | - Dawn Croucher
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand
| | - Warish Ahmed
- CSIRO Land and Water, Ecosciences Precinct, Queensland, 4102, Australia
| | - Megan Devane
- Institute of Environmental Science and Research Ltd (ESR), Christchurch, 8041, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Porirua, 5240, New Zealand
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Hewitt J, Carter B, McCarthy K, Pearce L, Law J, Wilson FV, Tay HS, McCormack C, Stechman MJ, Moug SJ, Myint PK. Frailty predicts mortality in all emergency surgical admissions regardless of age. An observational study. Age Ageing 2019; 48:388-394. [PMID: 30778528 DOI: 10.1093/ageing/afy217] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [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: 07/01/2018] [Revised: 10/09/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND frail patients in any age group are more likely to die than those that are not frail. We aimed to evaluate the impact of frailty on clinical mortality, readmission rate and length of stay for emergency surgical patients of all ages. METHODS a multi-centre prospective cohort study was conducted on adult admissions to acute surgical units. Every patient presenting as a surgical emergency to secondary care, regardless of whether they ultimately underwent a surgical procedure was included. The study was carried out during 2015 and 2016.Frailty was defined using the 7-point Clinical Frailty Scale. The primary outcome was mortality at Day 90. Secondary outcomes included: mortality at Day 30, length of stay and readmission within a Day 30 period. RESULTS the cohort included 2,279 patients (median age 54 years [IQR 36-72]; 56% female). Frailty was documented in patients of all ages: 1% in the under 40's to 45% of those aged 80+. We found that each incremental step of worsening frailty was associated with an 80% increase in mortality at Day 90 (OR 1.80, 95% CI: 1.61-2.01) supporting a linear dose-response relationship. In addition, the most frail patients were increasingly likely to stay in hospital longer, be readmitted within 30 days, and die within 30 days. CONCLUSIONS worsening frailty at any age is associated with significantly poorer patient outcomes, including mortality in unselected acute surgical admissions. Assessment of frailty should be integrated into emergency surgical practice to allow prognostication and implementation of strategies to improve outcomes.
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Affiliation(s)
- J Hewitt
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - K McCarthy
- Department of General Surgery, North Bristol NHS Trust, Bristol, UK
| | - L Pearce
- Department of General Surgery, Manchester Royal Infirmary, Manchester, UK
| | - J Law
- Department of General Surgery, Blackpool Victoria Infirmary, Blackpool, UK
| | - F V Wilson
- Department of Geriatric Medicine, Sunderland Royal Hospital, Sunderland, UK
| | - H S Tay
- Department of Geriatric Medicine Aberdeen Royal Infirmary, Aberdeen, UK
| | - C McCormack
- Department of Geriatric Medicine Aberdeen Royal Infirmary, Aberdeen, UK
| | - M J Stechman
- Department of General Surgery, University Hospital of Wales, Cardiff, UK
| | - S J Moug
- Department of General Surgery, Royal Alexandra Hospital, Paisley, Greater Glasgow, UK
| | - P K Myint
- Ageing Clinical & Experimental Research (ACER) Team, Institute of Applied Health Research, University of Aberdeen, Aberdeen, UK
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Tay HS, Ablett A, Evans LA, Browning A, Goeteyn J, Owen S, Myint PK, Hewitt J. 77OLDER PEOPLE SURGICAL OUTCOMES COLLABORATION: ACADEMIC TRAINING AND DEVELOPMENT. Age Ageing 2019. [DOI: 10.1093/ageing/afy198.02] [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: 11/13/2022] Open
Affiliation(s)
- H S Tay
- Nottingham University Hospital NHS Trust
| | | | | | | | | | - S Owen
- University Hospital of Wales
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38
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Ablett AD, McCarthy K, Carter B, Pearce L, Stechman M, Moug S, Ceelen W, Hewitt J, Myint PK. A practical risk scale for predicting morbidity and mortality in the emergency general surgical setting: A prospective multi-center study. Int J Surg 2018; 60:236-244. [PMID: 30481611 DOI: 10.1016/j.ijsu.2018.11.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/30/2018] [Accepted: 11/19/2018] [Indexed: 11/18/2022]
Abstract
BACKGROUND Low albumin is a prognostic factor associated with poor surgical outcomes. We aimed to examine the predicative ability of easily obtainable point-of-care variables in combination, to derive a practical risk scale for predicting older adults at risk of poor outcomes on admission to the emergency general surgical setting. METHODS This is an international multi-center prospective cohort study conducted as part of the Older Persons Surgical Outcomes Collaboration (www.OPSOC.eu). The effect of having hypoalbuminemia (defined as albumin ≤3.5 g/dL) on selected outcomes was examined using fully adjusted multivariable models. In a subgroup of patients with hypoalbuminemia, we observed four risk characteristics (Male, Anemia, Low albumin, Eighty-five and over [MALE]). Subsequently, the impact of incremental increase in MALE score (each characteristic scoring 1 point (maximum score 4) on measured outcomes was assessed. RESULTS The cohort consisted of 1406 older patients with median (IQR) age of 76 (70-83) years. In fully adjusted models, hypoalbuminemia was significantly associated with undergoing emergency surgery (1.32 (95%CI 1.03-1.70); p = 0.03), 30-day mortality (4.23 (2.22-8.08); p < 0.001), 90-day mortality (3.36 (2.14-5.28); p < 0.001) (primary outcome), and increased hospital length of stay, irrespective of whether a patient received emergency surgical intervention. Every point increase in MALE score was associated with higher odds of mortality, with a MALE score of 4 being associated with 30-day mortality (adjusted OR(95% CI) = 33.38 (3.86-288.7); p = 0.001) and 90-day mortality (11.37 (3.85-33.59); p < 0.001) compared to the reference category of those with MALE score 0. CONCLUSIONS The easy to use and practical MALE risk score calculated at point of care identifies older adults at a greater risk of poor outcomes, thereby allowing clinicians to prioritize patients who may benefit from early comprehensive geriatric assessment in the emergency general surgical setting.
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Affiliation(s)
- A D Ablett
- Institute of Applied Health Sciences, University of Aberdeen & Aberdeen Royal Infirmary, NHS Grampian, United Kingdom
| | - K McCarthy
- Department of General Surgery, King's College London, United Kingdom
| | - B Carter
- Department of Biostatistics and Health Informatics, Institute of Psychology Psychiatry and Neuroscience, King's College London, United Kingdom
| | - L Pearce
- Department of General Surgery, Manchester Royal Infirmary, United Kingdom
| | - M Stechman
- Department of General Surgery, University Hospital of Wales, United Kingdom
| | - S Moug
- Department of General Surgery, Royal Alexandra Hospital, Paisley, United Kingdom
| | - W Ceelen
- Department of GI Surgery, University Hospital, Ghent, Belgium
| | - J Hewitt
- Department of Population Medicine, Cardiff University, United Kingdom
| | - P K Myint
- Institute of Applied Health Sciences, University of Aberdeen & Aberdeen Royal Infirmary, NHS Grampian, United Kingdom.
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McAuliffe GN, Taylor SL, Moore S, Hewitt J, Upton A, Howe AS, Best EJ. Suboptimal performance of rotavirus testing in a vaccinated community population should prompt laboratories to review their rotavirus testing algorithms in response to changes in disease prevalence. Diagn Microbiol Infect Dis 2018; 93:203-207. [PMID: 30385202 DOI: 10.1016/j.diagmicrobio.2018.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 10/01/2018] [Accepted: 10/01/2018] [Indexed: 10/28/2022]
Abstract
Rotavirus vaccine has reduced disease prevalence in many countries. Consequently, we aimed to assess the reliability of a rotavirus immunoassay in the community population of Auckland and Northland, New Zealand. Between 22 October 2015 and 31 December 2016, 2873 fecal samples were tested by enzyme immunoassay (EIA, Rotascreen II, Microgen, UK) from 2748 patients (median age 8 years, range 0-101 years). Eighty-nine (3.1%) samples were reactive; 86 samples were tested by a second method. Rotavirus was confirmed in 49/86 (57%). Positive rotavirus EIAs were more likely to be confirmed in samples from cases ≥1 year of age (positive predictive value [PPV] 61%, 95% confidence interval [CI] 50-72%, P = 0.049) and in spring/summer (PPV 67%, 95% CI 55-78%, P = 0.003). Reactive rotavirus tests required confirmatory testing regardless of demographic, vaccine, or seasonal factors; a review of rotavirus testing algorithms may be necessary in other vaccinated community populations.
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Affiliation(s)
- Gary N McAuliffe
- Microbiology Department, Labtests and Northland Pathology Laboratories, Auckland, New Zealand.
| | - Susan L Taylor
- Microbiology Department, Middlemore Hospital, Auckland, New Zealand
| | - Sharon Moore
- Microbiology Department, Labtests and Northland Pathology Laboratories, Auckland, New Zealand
| | - Joanne Hewitt
- Enteric, Environmental and Food Virology Laboratory, Institute of Environmental Science and Research Limited, Porirua, New Zealand
| | - Arlo Upton
- Microbiology Department, Labtests and Northland Pathology Laboratories, Auckland, New Zealand
| | - Anna S Howe
- Department of General Practice and Primary Health Care, School of Population Health, University of Auckland, Auckland, New Zealand
| | - Emma J Best
- Department of Paediatrics, Child and Youth Health, University of Auckland, Auckland, New Zealand
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Ablett AD, Browning A, Quan V, Tay HS, McCormack C, Carter B, Hewitt J, Myint PK. 67ANTI-CHOLINERGIC BURDEN AND PATIENT RELATED CLINICAL OUTCOMES IN AN EMERGENCY GENERAL SURGICAL SETTING. Age Ageing 2018. [DOI: 10.1093/ageing/afy120.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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King NJ, Hewitt J, Perchec-Merien AM. Hiding in Plain Sight? It's Time to Investigate Other Possible Transmission Routes for Hepatitis E Virus (HEV) in Developed Countries. Food Environ Virol 2018; 10:225-252. [PMID: 29623595 DOI: 10.1007/s12560-018-9342-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 12/17/2017] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Historically in developed countries, reported hepatitis E cases were typically travellers returning from countries where hepatitis E virus (HEV) is endemic, but now there are increasing numbers of non-travel-related ("autochthonous") cases being reported. Data for HEV in New Zealand remain limited and the transmission routes unproven. We critically reviewed the scientific evidence supporting HEV transmission routes in other developed countries to inform how people in New Zealand may be exposed to this virus. A substantial body of indirect evidence shows domesticated pigs are a source of zoonotic human HEV infection, but there is an information bias towards this established reservoir. The increasing range of animals in which HEV has been detected makes it important to consider other possible animal reservoirs of HEV genotypes that can or could infect humans. Foodborne transmission of HEV from swine and deer products has been proven, and a large body of indirect evidence (e.g. food surveys, epidemiological studies and phylogenetic analyses) support pig products as vehicles of HEV infection. Scarce data from other foods suggest we are neglecting other potential sources of foodborne HEV infection. Moreover, other transmission routes are scarcely investigated in developed countries; the role of infected food handlers, person-to-person transmission via the faecal-oral route, and waterborne transmission from recreational contact or drinking untreated or inadequately treated water. People have become symptomatic after receiving transfusions of HEV-contaminated blood, but it is unclear how important this is in the overall hepatitis E disease burden. There is need for broader research efforts to support establishing risk-based controls.
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Affiliation(s)
- Nicola J King
- Institute of Environmental Science and Research, 34 Kenepuru Drive, Kenepuru, Porirua, 5022, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research, 34 Kenepuru Drive, Kenepuru, Porirua, 5022, New Zealand.
| | - Anne-Marie Perchec-Merien
- New Zealand Ministry for Primary Industries, Pastoral House, 25 The Terrace, Wellington, New Zealand
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Gyawali P, Croucher D, Hewitt J. Preliminary evaluation of BioFire FilmArray ® Gastrointestinal Panel for the detection of noroviruses and other enteric viruses from wastewater and shellfish. Environ Sci Pollut Res Int 2018; 25:27657-27661. [PMID: 30083906 DOI: 10.1007/s11356-018-2869-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 06/12/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
The BioFire FilmArray® Gastrointestinal Panel was evaluated for the rapid detection of adenovirus, astrovirus, norovirus, rotavirus and sapovirus from influent and effluent wastewater and shellfish. The multiplex BioFire FilmArray® Gastrointestinal Panel compared well to singleplex qPCR/RT-qPCR methods for the detection of adenovirus, astrovirus, rotavirus and sapovirus from influent and effluent wastewater samples. However, the BioFire FilmArray® Gastrointestinal Panel showed poor performance for the detection of norovirus, significantly underestimating its presence in wastewater and shellfish samples when compared with the singleplex norovirus GI and GII RT-qPCR assays. Therefore, improvement on detection efficiency for norovirus from environmental and food samples is necessary before using results from the FilmArray® Gastrointestinal Panel to assess associated public health risks.
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Affiliation(s)
- Pradip Gyawali
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand.
| | - Dawn Croucher
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand
| | - Joanne Hewitt
- Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO Box 50348, Porirua, 5240, New Zealand
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Langlet J, Kaas L, Croucher D, Hewitt J. Effect of the Shellfish Proteinase K Digestion Method on Norovirus Capsid Integrity. Food Environ Virol 2018; 10:151-158. [PMID: 29417429 DOI: 10.1007/s12560-018-9336-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 01/19/2018] [Indexed: 06/08/2023]
Abstract
Norovirus outbreaks are associated with the consumption of contaminated shellfish, and so efficient methods to recover and detect infectious norovirus in shellfish are important. The Proteinase K digestion method used to recover norovirus from shellfish, as described in the ISO 15216, would be a good candidate but its impact on the virus capsid integrity and thus infectivity was never examined. The aim of this study was to assess the impact of the Proteinase K digestion method, and of the heat treatment component of the method alone, on norovirus (genogroups I and II) and MS2 bacteriophage capsid integrity. A slightly modified version of the ISO method was used. RT-qPCR was used for virus detection following digestion of accessible viral RNA using RNases. MS2 phage infectivity was measured using a plaque assay. The effect of shellfish digestive glands (DG) on recovery was evaluated. In the presence of shellfish DG, a reduction in MS2 phage infectivity of about 1 log10 was observed after the Proteinase K digestion method and after heat treatment component alone. For norovirus GII and MS2 phage, there was no significant loss of genome following the Proteinase K digestion method but there was a significant 0.24 log10 loss of norovirus GI. In the absence of shellfish DG, the reduction in MS2 phage infectivity was about 2 log10, with the addition of RNases resulting in a significant loss of genome for all tested viruses following complete Proteinase K digestion method and the heat treatment alone. While some protective effect from the shellfish DG on viruses was observed, the impact on capsid integrity and infectivity suggests that this method, while suitable for norovirus genome detection, may not completely preserve virus infectivity.
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Affiliation(s)
- Jérémie Langlet
- Enteric, Environmental and Food Virology Laboratory, Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO BOX 50-348, Porirua, 5240, New Zealand.
| | - Laetitia Kaas
- Enteric, Environmental and Food Virology Laboratory, Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO BOX 50-348, Porirua, 5240, New Zealand
| | - Dawn Croucher
- Enteric, Environmental and Food Virology Laboratory, Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO BOX 50-348, Porirua, 5240, New Zealand
| | - Joanne Hewitt
- Enteric, Environmental and Food Virology Laboratory, Institute of Environmental Science and Research Ltd (ESR), Kenepuru Science Centre, PO BOX 50-348, Porirua, 5240, New Zealand
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Chan MCW, Hu Y, Chen H, Podkolzin AT, Zaytseva EV, Komano J, Sakon N, Poovorawan Y, Vongpunsawad S, Thanusuwannasak T, Hewitt J, Croucher D, Collins N, Vinjé J, Pang XL, Lee BE, de Graaf M, van Beek J, Vennema H, Koopmans MPG, Niendorf S, Poljsak-Prijatelj M, Steyer A, White PA, Lun JH, Mans J, Hung TN, Kwok K, Cheung K, Lee N, Chan PKS. Global Spread of Norovirus GII.17 Kawasaki 308, 2014-2016. Emerg Infect Dis 2018; 23:1359-1354. [PMID: 28726618 PMCID: PMC5547775 DOI: 10.3201/eid2308.161138] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Analysis of complete capsid sequences of the emerging norovirus GII.17 Kawasaki 308 from 13 countries demonstrated that they originated from a single haplotype since the initial emergence in China in late 2014. Global spread of a sublineage SL2 was identified. A new sublineage SL3 emerged in China in 2016.
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45
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Smart R, Carter B, McGovern J, Luckman S, Connelly A, Hewitt J, Quasim T, Moug S. Frailty Exists in Younger Adults Admitted as Surgical Emergency Leading to Adverse Outcomes. J Frailty Aging 2018; 6:219-223. [PMID: 29165541 DOI: 10.14283/jfa.2017.28] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Frailty is prevalent in the older adult population (≥65 years of age) and results in adverse outcomes in the emergency general surgical population. OBJECTIVE To determine whether frailty exists in the younger adult emergency surgical population (<65 years) and what influence frailty may have on patient related outcomes. DESIGN Prospective observational cohort study. SETTING Emergency general surgical admissions. PARTICIPANTS All patients ≥40 years divided into 2 groups: younger adults (40-64.9 years) and older adult comparative group (≥65). MEASUREMENTS Over a 6-month time frame the following data was collected: demographics; Scottish Index of Multiple Deprivation (SIMD); blood markers; multi-morbidities, polypharmacy and cognition. Frailty was assessed by completion of the Canadian Study of Health and Ageing (CSHA). Each patient was followed up for 90 days to allow determination of length of stay, re-admission and mortality. RESULTS 82 young adults were included and the prevalence of frailty was 16% (versus older adults 38%; p=0.001) and associated with: multi-morbidity; poly-pharmacy; cognitive impairment; and deprivation. Frailty in older adults was only significantly associated with increasing age. CONCLUSIONS This novel study has found that frailty exists in 16% of younger adults admitted to emergency general surgical units, potentially leading to adverse short and long-term outcomes. Strategies need to be developed that identify and treat frailty in this vulnerable younger adult population.
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Affiliation(s)
- R Smart
- Susan J Moug,Consultant Surgeon and Honorary Senior Clinical Lecturer; Department of Surgery, Royal Alexandra Hospital; Paisley, United Kingdom, PA2 9PN, +441413146965.
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46
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Lun JH, Hewitt J, Sitabkhan A, Eden JS, Enosi Tuipulotu D, Netzler NE, Morrell L, Merif J, Jones R, Huang B, Warrilow D, Ressler KA, Ferson MJ, Dwyer DE, Kok J, Rawlinson WD, Deere D, Crosbie ND, White PA. Emerging recombinant noroviruses identified by clinical and waste water screening. Emerg Microbes Infect 2018; 7:50. [PMID: 29593246 PMCID: PMC5874246 DOI: 10.1038/s41426-018-0047-8] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/24/2018] [Accepted: 01/31/2018] [Indexed: 12/03/2022]
Abstract
Norovirus is estimated to cause 677 million annual cases of gastroenteritis worldwide, resulting in 210,000 deaths. As viral gastroenteritis is generally self-limiting, clinical samples for epidemiological studies only partially represent circulating noroviruses in the population and is biased towards severe symptomatic cases. As infected individuals from both symptomatic and asymptomatic cases shed viruses into the sewerage system at a high concentration, waste water samples are useful for the molecular epidemiological analysis of norovirus genotypes at a population level. Using Illumina MiSeq and Sanger sequencing, we surveyed circulating norovirus within Australia and New Zealand, from July 2014 to December 2016. Importantly, norovirus genomic diversity during 2016 was compared between clinical and waste water samples to identify potential pandemic variants, novel recombinant viruses and the timing of their emergence. Although the GII.4 Sydney 2012 variant was prominent in 2014 and 2015, its prevalence significantly decreased in both clinical and waste water samples over 2016. This was concomitant with the emergence of multiple norovirus strains, including two GII.4 Sydney 2012 recombinant viruses, GII.P4 New Orleans 2009/GII.4 Sydney 2012 and GII.P16/GII.4 Sydney 2012, along with three other emerging strains GII.17, GII.P12/GII.3 and GII.P16/GII.2. This is unusual, as a single GII.4 pandemic variant is generally responsible for 65–80% of all human norovirus infections at any one time and predominates until it is replaced by a new pandemic variant. In sumary, this study demonstrates the combined use of clinical and wastewater samples provides a more complete picture of norovirus circulating within the population.
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Affiliation(s)
- Jennifer H Lun
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Joanne Hewitt
- Institute of Environmental Science and Research, Kenepuru Science Centre, Porirua, 5022, New Zealand
| | - Alefiya Sitabkhan
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - John-Sebastian Eden
- Faculty of Science, School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, 2006, Australia.,Centre for Virus Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, 2145, Australia
| | - Daniel Enosi Tuipulotu
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Natalie E Netzler
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Leigh Morrell
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Juan Merif
- SAViD (Serology and Virology Division), Department of Microbiology, Prince of Wales Hospital, Sydney, NSW, 2031, Australia
| | - Richard Jones
- Douglass Hanly Moir Pathology, Macquarie Park, Sydney, NSW, 2113, Australia
| | - Bixing Huang
- Forensic and Scientific Services, Department of Health, Queensland Government, Archerfield, QLD, 4108, Australia
| | - David Warrilow
- Forensic and Scientific Services, Department of Health, Queensland Government, Archerfield, QLD, 4108, Australia
| | - Kelly-Anne Ressler
- Public Health Unit, South Eastern Sydney Local Health District, Sydney, NSW, 2217, Australia
| | - Mark J Ferson
- Public Health Unit, South Eastern Sydney Local Health District, Sydney, NSW, 2217, Australia.,School of Public Health and Community Medicine, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Dominic E Dwyer
- Institute for Clinical Pathology and Medical Research, NSW Health Pathology, Westmead Hospital and University of Sydney, Sydney, NSW, 2145, Australia
| | - Jen Kok
- Institute for Clinical Pathology and Medical Research, NSW Health Pathology, Westmead Hospital and University of Sydney, Sydney, NSW, 2145, Australia
| | - William D Rawlinson
- SAViD (Serology and Virology Division), Department of Microbiology, Prince of Wales Hospital, Sydney, NSW, 2031, Australia.,Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, NSW, 2052, Australia.,Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Daniel Deere
- Water Futures Pty Ltd, Sydney, NSW, 2073, Australia
| | | | - Peter A White
- Faculty of Science, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia.
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47
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Hewitt J, Harte D, Sutherland M, Croucher D, Fouche L, Flanagan P, Williamson D. Prevalence of hepatitis E virus antibodies and infection in New Zealand blood donors. N Z Med J 2018; 131:38-43. [PMID: 29389927] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
AIM Blood transfusion is one route of transmission of hepatitis E virus (HEV). The aim of this study was to assess both the prevalence of HEV antibodies and HEV infection in New Zealand blood donors. METHOD To determine HEV seroprevalence, donor plasma samples (n=1,013) were tested for HEV antibodies using two commercially available ELISA kits, the Wantai HEV IgG ELISA and the MP Diagnostics HEV ELISA 4.0. To assess the prevalence of HEV infection, pooled plasma samples from individual plasma donors (n=5,000) were tested for HEV RNA using RT-qPCR. Samples that tested HEV antibody positive or gave an equivocal result with either ELISA were also tested for HEV RNA. RESULTS The HEV seroprevalence in New Zealand blood donors was 9.7% using the Wantai HEV IgG ELISA and 8.1% using the MP Diagnostics HEV ELISA 4.0. The presence of HEV antibodies was significantly and positively correlated with increasing donor age. HEV RNA was not detected in any of the samples tested, indicating no evidence of current infection. CONCLUSION This study, the largest to date to assess HEV seroprevalence in New Zealand, provides valuable baseline information on HEV seroprevalence and infection in New Zealand blood donors. The seroprevalence rate in New Zealand is similar to that reported in other developed countries.
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Affiliation(s)
- Joanne Hewitt
- Institute of Environmental Science and Research Ltd, Porirua
| | - David Harte
- Institute of Environmental Science and Research Ltd, Porirua
| | | | - Dawn Croucher
- Institute of Environmental Science and Research Ltd, Porirua
| | - Lindsey Fouche
- Donation Accreditation, New Zealand Blood Service, Auckland
| | | | - Deborah Williamson
- Health Group, Institute of Environmental Science and Research Ltd, Porirua
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48
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van Beek J, de Graaf M, Al-Hello H, Allen DJ, Ambert-Balay K, Botteldoorn N, Brytting M, Buesa J, Cabrerizo M, Chan M, Cloak F, Di Bartolo I, Guix S, Hewitt J, Iritani N, Jin M, Johne R, Lederer I, Mans J, Martella V, Maunula L, McAllister G, Niendorf S, Niesters HG, Podkolzin AT, Poljsak-Prijatelj M, Rasmussen LD, Reuter G, Tuite G, Kroneman A, Vennema H, Koopmans MPG. Molecular surveillance of norovirus, 2005-16: an epidemiological analysis of data collected from the NoroNet network. Lancet Infect Dis 2018; 18:545-553. [PMID: 29396001 DOI: 10.1016/s1473-3099(18)30059-8] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 11/02/2017] [Accepted: 11/16/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND The development of a vaccine for norovirus requires a detailed understanding of global genetic diversity of noroviruses. We analysed their epidemiology and diversity using surveillance data from the NoroNet network. METHODS We included genetic sequences of norovirus specimens obtained from outbreak investigations and sporadic gastroenteritis cases between 2005 and 2016 in Europe, Asia, Oceania, and Africa. We genotyped norovirus sequences and analysed sequences that overlapped at open reading frame (ORF) 1 and ORF2. Additionally, we assessed the sampling date and country of origin of the first reported sequence to assess when and where novel drift variants originated. FINDINGS We analysed 16 635 norovirus sequences submitted between Jan 1, 2005, to Nov 17, 2016, of which 1372 (8·2%) sequences belonged to genotype GI, 15 256 (91·7%) to GII, and seven (<0·1%) to GIV.1. During this period, 26 different norovirus capsid genotypes circulated and 22 different recombinant genomes were found. GII.4 drift variants emerged with 2-3-year periodicity up to 2012, but not afterwards. Instead, the GII.4 Sydney capsid seems to persist through recombination, with a novel recombinant of GII.P16-GII.4 Sydney 2012 variant detected in 2014 in Germany (n=1) and the Netherlands (n=1), and again in 2016 in Japan (n=2), China (n=8), and the Netherlands (n=3). The novel GII.P17-GII.17, first reported in Asia in 2014, has circulated widely in Europe in 2015-16 (GII.P17 made up a highly variable proportion of all sequences in each country [median 11·3%, range 4·2-53·9], as did GII.17 [median 6·3%, range 0-44·5]). GII.4 viruses were more common in outbreaks in health-care settings (2239 [37·2%] of 6022 entries) compared with other genotypes (101 [12·5%] of 809 entries for GI and 263 [13·5%] of 1941 entries for GII non-GII.Pe-GII.4 or GII.P4-GII.4). INTERPRETATION Continuous changes in the global norovirus genetic diversity highlight the need for sustained global norovirus surveillance, including assessment of possible immune escape and evolution by recombination, to provide a full overview of norovirus epidemiology for future vaccine policy decisions. FUNDING European Union's Horizon 2020 grant COMPARE, ZonMw TOP grant, the Virgo Consortium funded by the Dutch Government, and the Hungarian Scientific Research Fund.
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Affiliation(s)
- Janko van Beek
- Department of Viroscience, Erasmus Medical Center, Rotterdam, Netherlands; Centre for Infectious Diseases Research, Diagnostics and Screening, National Institute of Public Health and the Environment, Bilthoven, Netherlands
| | - Miranda de Graaf
- Department of Viroscience, Erasmus Medical Center, Rotterdam, Netherlands
| | - Haider Al-Hello
- Department of Health Security, National Institute for Health and Welfare, Helsinki, Finland
| | - David J Allen
- Virus Reference Department, Public Health England, London, UK; Department of Pathogen Molecular Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK; Health Protection Research Unit in Gastrointestinal Infections, National Institute for Health Research, UK
| | - Katia Ambert-Balay
- National Reference Centre for Gastroenteritis Viruses, University Hospital of Dijon Bourgogne, Dijon, France; AgroSup Dijon PAM UMR A 02.102, University Bourgogne Franche-Comté, Dijon, France
| | - Nadine Botteldoorn
- Scientific Service of Foodborne Pathogens, Institute of Public Health, Brussels, Belgium
| | - Mia Brytting
- Microbial Typing Unit, The Public Health Agency of Sweden, Stockholm, Sweden
| | - Javier Buesa
- Viral Gastroenteritis Research Group, Department of Microbiology, University of Valencia, Valencia, Spain
| | - Maria Cabrerizo
- Enterovirus and Viral Gastroenteritis Unit, Instituto de Salud Carlos III, Madrid, Spain; Translational Research Network in Pediatric Infectious Diseases, Instituto de Investigación Sanitaria de la Paz, Madrid, Spain
| | - Martin Chan
- Department of Microbiology, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Fiona Cloak
- Gastroenteric, Vectorborne and Zoonotic Unit, Health Protection Surveillance Centre, Dublin, Ireland
| | - Ilaria Di Bartolo
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanita, Rome, Italy
| | - Susana Guix
- Enteric Virus Laboratory, University of Barcelona, Barcelona, Spain
| | - Joanne Hewitt
- Norovirus Reference Laboratory, Institute of Environmental Science and Research, Porirua, New Zealand
| | - Nobuhiro Iritani
- Department of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Miao Jin
- Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China, Beijing, China
| | - Reimar Johne
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Ingeborg Lederer
- Reference Centres and Reference Laboratories, Austrian Agency for Health and Food Safety, Vienna, Austria
| | - Janet Mans
- Department of Medical Virology, University of Pretoria, Pretoria, South Africa
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari, Bari, Italy
| | - Leena Maunula
- Department of Food Hygiene and Environmental Health, University of Helsinki, Helsinki, Finland
| | | | - Sandra Niendorf
- Consultant Laboratory for Noroviruses, Robert Koch Institute, Berlin, Germany
| | - Hubert G Niesters
- Department of Medical Microbiology, Division of Clinical Virology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Alexander T Podkolzin
- RussianFederal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor), Central Research Institute of Epidemiology, Moscow, Russia
| | - Mateja Poljsak-Prijatelj
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Lasse Dam Rasmussen
- Department of Virus & Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
| | - Gábor Reuter
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary
| | - Gráinne Tuite
- National Virus Reference Laboratory, University College Dublin, Dublin, Ireland
| | - Annelies Kroneman
- Centre for Infectious Diseases Research, Diagnostics and Screening, National Institute of Public Health and the Environment, Bilthoven, Netherlands
| | - Harry Vennema
- Centre for Infectious Diseases Research, Diagnostics and Screening, National Institute of Public Health and the Environment, Bilthoven, Netherlands
| | - Marion P G Koopmans
- Department of Viroscience, Erasmus Medical Center, Rotterdam, Netherlands; Centre for Infectious Diseases Research, Diagnostics and Screening, National Institute of Public Health and the Environment, Bilthoven, Netherlands.
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Weaver N, Coffey M, Hewitt J. Concepts, models and measurement of continuity of care in mental health services: A systematic appraisal of the literature. J Psychiatr Ment Health Nurs 2017; 24:431-450. [PMID: 28319308 DOI: 10.1111/jpm.12387] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 03/15/2017] [Indexed: 11/29/2022]
Abstract
UNLABELLED WHAT IS KNOWN ON THE SUBJECT?: Care continuity is considered to be a cornerstone of modern mental health care. As community mental health services have become increasingly fragmented and complex, the crucial criterion for best quality care has become the degree to which treatment delivered by separate services and professionals is continuous and well coordinated. However, clarification of the key elements of continuity has proved challenging and a consensus has not been reached. Recent research has shown significant levels of variation in the quality of care coordination across England and Wales, with potentially detrimental consequences for individuals. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: Studies on care continuity identified in this review are grouped into three categories: studies defining concepts of care continuity, studies providing models of continuity and studies describing development of questionnaires about care continuity. There are many similarities and parallels between concepts of continuity described in the studies under review. Therefore, there is potential for developing a consensus on the nature of care continuity as a multidimensional concept. The priority placed upon the patient's experience of care continuity is identified as a major focus in these studies. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: A consensus on the nature of care continuity would benefit both theory and practice in mental health nursing. It would provide a firmer foundation for new research seeking to improve continuity for people using services, and enable mental health nurses working as care coordinators to have a better understanding of the elements of their role that are most effective. ABSTRACT Introduction The increased complexity of community mental health services, and associated fragmentation of traditional dividing lines between services, has underscored the centrality of care continuity and coordination in modern mental health care. However, clarification of the key features of the care continuity concept has proved difficult and a consensus has not been reached. Aim/Question This review draws together and critically examines latest evidence concerning concepts, models and scales based on a multidimensional understanding of care continuity. Method Databases ASSIA, PubMed, MEDLINE and Cochrane were searched for papers dating from January 2005 to July 2016, of which 21 articles met the inclusion criteria. These were subjected to quality appraisal based on CASP and COSMIN checklists. Studies were grouped into three thematic categories describing concepts, models and scales of care continuity. Results/Discussion Synthesis indicated correspondence between independent, multidimensional models of care continuity, providing greater clarity regarding the essential features of the concept. Association, although not causation, between care continuity factors and health outcomes is supported by current evidence. Implications for practice Clarification of care continuity in mental health services may enable nurses working as care coordinators to develop a better understanding of key elements of their role, and provide guidance for future service development.
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Affiliation(s)
- N Weaver
- Public Health, Policy and Social Sciences, College of Human and Health Sciences, Swansea University, Swansea, UK
| | - M Coffey
- Public Health, Policy and Social Sciences, College of Human and Health Sciences, Swansea University, Swansea, UK
| | - J Hewitt
- Public Health, Policy and Social Sciences, College of Human and Health Sciences, Swansea University, Swansea, UK
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50
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Ablett A, Goeteyn J, Evans L, Law J, Owen S, Hewitt J, Myint PK. 34HYPOALBUMINAEMIA PREDICTS IMPORTANT CLINICAL OUTCOMES IN OLDER UNSELECTED ACUTE SURGICAL ADMISSIONS: AN INTERNATIONAL MULTICENTRE STUDY. Age Ageing 2017. [DOI: 10.1093/ageing/afx110.34] [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: 11/13/2022] Open
Affiliation(s)
| | | | | | - J Law
- Manchester Royal Infirmary
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