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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Burton R, Fryers PT, Sharpe C, Clarke Z, Henn C, Hydes T, Marsden J, Pearce-Smith N, Sheron N. The independent and joint risks of alcohol consumption, smoking, and excess weight on morbidity and mortality: a systematic review and meta-analysis exploring synergistic associations. Public Health 2024; 226:39-52. [PMID: 38000113 DOI: 10.1016/j.puhe.2023.10.035] [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: 05/19/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVE Alcohol consumption, smoking, and excess weight independently increase the risk of morbidity/mortality. Less is known about how they interact. This research aims to quantify the independent and joint associations of these exposures across health outcomes and identify whether these associations are synergistic. STUDY DESIGN The protocol for this systematic review and meta-analysis was pre-registered (PROSPERO CRD42021231443). METHODS Medline and Embase were searched between 1 January 2010 and 9 February 2022. Eligible peer-reviewed observational studies had to include adult participants from Organisation for Co-Operation and Development countries and report independent and joint associations between at least two eligible exposures (alcohol, smoking, and excess weight) and an ICD-10 outcome (or equivalent). For all estimates, we calculated the synergy index (SI) to identify whether joint associations were synergistic. Meta-analyses were conducted for outcomes with sufficiently homogenous data. RESULTS The search returned 26,290 studies, of which 98 were included. Based on 138,130 participants, the combined effect (SI) of alcohol and smoking on head and neck cancer death/disease was 3.78 times greater than the additive effect of each exposure (95% confidence interval [CI] = 2.61, 5.48). Based on 2,603,939 participants, the combined effect of alcohol and excess weight on liver disease/death was 1.55 times greater than the additive effect of each exposure (95% CI = 1.33, 1.82). CONCLUSION Synergistic associations suggest the true population-level risk may be underestimated. In the absence of bias, individuals with multiple risks would experience a greater absolute risk reduction from an intervention that targets a single exposure than individuals with a single risk.
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Affiliation(s)
- R Burton
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom; Institute of Psychiatry, Psychology, and Neuroscience, Kings College London, London, England, United Kingdom.
| | - P T Fryers
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom
| | - C Sharpe
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom
| | - Z Clarke
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom
| | - C Henn
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom
| | - T Hydes
- Department of Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University Hospital Aintree NHS Foundation Trust, University of Liverpool, Liverpool, England, United Kingdom
| | - J Marsden
- Institute of Psychiatry, Psychology, and Neuroscience, Kings College London, London, England, United Kingdom
| | - N Pearce-Smith
- Knowledge and Library Services, UK Health Security Agency, London, England, United Kingdom
| | - N Sheron
- Office for Health Improvement and Disparities (OHID), London, England, United Kingdom; Institute of Liver Studies, Kings College London School of Medicine at King's College Hospital, London, England, United Kingdom
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B, Gillham S, Girakossyan I, Girndt M, Giuffrida A, Glenwright M, Glider T, Gloria R, Glowski D, Goh BL, Goh CB, Gohda T, Goldenberg R, Goldfaden R, Goldsmith C, Golson B, Gonce V, Gong Q, Goodenough B, Goodwin N, Goonasekera M, Gordon A, Gordon J, Gore A, Goto H, Goto S, Goto S, Gowen D, Grace A, Graham J, Grandaliano G, Gray M, Green JB, Greene T, Greenwood G, Grewal B, Grifa R, Griffin D, Griffin S, Grimmer P, Grobovaite E, Grotjahn S, Guerini A, Guest C, Gunda S, Guo B, Guo Q, Haack S, Haase M, Haaser K, Habuki K, Hadley A, Hagan S, Hagge S, Haller H, Ham S, Hamal S, Hamamoto Y, Hamano N, Hamm M, Hanburry A, Haneda M, Hanf C, Hanif W, Hansen J, Hanson L, Hantel S, Haraguchi T, Harding E, Harding T, Hardy C, Hartner C, Harun Z, Harvill L, Hasan A, Hase H, Hasegawa F, Hasegawa T, Hashimoto A, Hashimoto C, Hashimoto M, Hashimoto S, Haskett S, Hauske SJ, Hawfield A, Hayami T, Hayashi M, Hayashi S, Haynes R, Hazara A, Healy C, Hecktman J, Heine G, Henderson H, Henschel R, Hepditch A, 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Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Multiorgan MRI findings after hospitalisation with COVID-19 in the UK (C-MORE): a prospective, multicentre, observational cohort study. Lancet Respir Med 2023; 11:1003-1019. [PMID: 37748493 PMCID: PMC7615263 DOI: 10.1016/s2213-2600(23)00262-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/16/2023] [Accepted: 06/30/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION The multiorgan impact of moderate to severe coronavirus infections in the post-acute phase is still poorly understood. We aimed to evaluate the excess burden of multiorgan abnormalities after hospitalisation with COVID-19, evaluate their determinants, and explore associations with patient-related outcome measures. METHODS In a prospective, UK-wide, multicentre MRI follow-up study (C-MORE), adults (aged ≥18 years) discharged from hospital following COVID-19 who were included in Tier 2 of the Post-hospitalisation COVID-19 study (PHOSP-COVID) and contemporary controls with no evidence of previous COVID-19 (SARS-CoV-2 nucleocapsid antibody negative) underwent multiorgan MRI (lungs, heart, brain, liver, and kidneys) with quantitative and qualitative assessment of images and clinical adjudication when relevant. Individuals with end-stage renal failure or contraindications to MRI were excluded. Participants also underwent detailed recording of symptoms, and physiological and biochemical tests. The primary outcome was the excess burden of multiorgan abnormalities (two or more organs) relative to controls, with further adjustments for potential confounders. The C-MORE study is ongoing and is registered with ClinicalTrials.gov, NCT04510025. FINDINGS Of 2710 participants in Tier 2 of PHOSP-COVID, 531 were recruited across 13 UK-wide C-MORE sites. After exclusions, 259 C-MORE patients (mean age 57 years [SD 12]; 158 [61%] male and 101 [39%] female) who were discharged from hospital with PCR-confirmed or clinically diagnosed COVID-19 between March 1, 2020, and Nov 1, 2021, and 52 non-COVID-19 controls from the community (mean age 49 years [SD 14]; 30 [58%] male and 22 [42%] female) were included in the analysis. Patients were assessed at a median of 5·0 months (IQR 4·2-6·3) after hospital discharge. Compared with non-COVID-19 controls, patients were older, living with more obesity, and had more comorbidities. Multiorgan abnormalities on MRI were more frequent in patients than in controls (157 [61%] of 259 vs 14 [27%] of 52; p<0·0001) and independently associated with COVID-19 status (odds ratio [OR] 2·9 [95% CI 1·5-5·8]; padjusted=0·0023) after adjusting for relevant confounders. Compared with controls, patients were more likely to have MRI evidence of lung abnormalities (p=0·0001; parenchymal abnormalities), brain abnormalities (p<0·0001; more white matter hyperintensities and regional brain volume reduction), and kidney abnormalities (p=0·014; lower medullary T1 and loss of corticomedullary differentiation), whereas cardiac and liver MRI abnormalities were similar between patients and controls. Patients with multiorgan abnormalities were older (difference in mean age 7 years [95% CI 4-10]; mean age of 59·8 years [SD 11·7] with multiorgan abnormalities vs mean age of 52·8 years [11·9] without multiorgan abnormalities; p<0·0001), more likely to have three or more comorbidities (OR 2·47 [1·32-4·82]; padjusted=0·0059), and more likely to have a more severe acute infection (acute CRP >5mg/L, OR 3·55 [1·23-11·88]; padjusted=0·025) than those without multiorgan abnormalities. Presence of lung MRI abnormalities was associated with a two-fold higher risk of chest tightness, and multiorgan MRI abnormalities were associated with severe and very severe persistent physical and mental health impairment (PHOSP-COVID symptom clusters) after hospitalisation. INTERPRETATION After hospitalisation for COVID-19, people are at risk of multiorgan abnormalities in the medium term. Our findings emphasise the need for proactive multidisciplinary care pathways, with the potential for imaging to guide surveillance frequency and therapeutic stratification. FUNDING UK Research and Innovation and National Institute for Health Research.
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D. Can repeat TURBT in patients presenting with High Grade Ta Urothelial Carcinoma be more nuanced? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00752-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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McGrane E, Wardle H, Clowes M, Blank L, Pryce R, Field M, Sharpe C, Goyder E. What is the evidence that advertising policies could have an impact on gambling-related harms? A systematic umbrella review of the literature. Public Health 2023; 215:124-130. [PMID: 36725155 DOI: 10.1016/j.puhe.2022.11.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 09/27/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 01/27/2023]
Abstract
OBJECTIVE To summarise the evidence on the impacts of gambling-related advertising that could lead to gambling-related harm, including impacts on vulnerable individuals and inequalities in the distribution of harms. STUDY DESIGN An umbrella review of studies investigating the impact of gambling advertising. METHODS A review was undertaken of systematic reviews of qualitative, quantitative and mixed method studies reporting outcomes associated with gambling advertising and marketing. The search strategy included database searches (Web of Science, PsycInfo) and website searches. The quality of the included reviews was determined using A MeaSurement Tool to Assess systematic Reviews 2. RESULTS 1024 papers were identified by database searches. Eight systematic reviews, including 74 unique studies, met inclusion criteria. Included studies, using quantitative and qualitative methods, consistently support the existence of a causal relationship between exposure to advertising of gambling products/brands and more positive attitudes to gambling, greater intentions to gamble and increased gambling activity at both individual and population level. There is evidence of a 'dose-response' effect; greater advertising exposure increases participation which leads to a greater risk of harm. There was more evidence for the impact on children and young people and for those already at risk from current gambling activity with those most vulnerable more likely to be influenced. CONCLUSION Gambling advertising restrictions could reduce overall harm and mitigate the impact of advertising on gambling-related inequalities. Public health harm prevention strategies should include policies which limit exposure to advertising, particularly among children and vulnerable groups.
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Affiliation(s)
- E McGrane
- School of Health & Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - H Wardle
- School of Social and Political Sciences, University of Glasgow, Glasgow, UK
| | - M Clowes
- School of Health & Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - L Blank
- School of Health & Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - R Pryce
- School of Health & Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - M Field
- Department of Psychology, University of Sheffield, Sheffield, UK
| | - C Sharpe
- School of Public Health, Imperial College London, UK
| | - E Goyder
- School of Health & Related Research (ScHARR), University of Sheffield, Sheffield, UK.
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Evans RA, Leavy OC, Richardson M, Elneima O, McAuley HJC, Shikotra A, Singapuri A, Sereno M, Saunders RM, Harris VC, Houchen-Wolloff L, Aul R, Beirne P, Bolton CE, Brown JS, Choudhury G, Diar-Bakerly N, Easom N, Echevarria C, Fuld J, Hart N, Hurst J, Jones MG, Parekh D, Pfeffer P, Rahman NM, Rowland-Jones SL, Shah AM, Wootton DG, Chalder T, Davies MJ, De Soyza A, Geddes JR, Greenhalf W, Greening NJ, Heaney LG, Heller S, Howard LS, Jacob J, Jenkins RG, Lord JM, Man WDC, McCann GP, Neubauer S, Openshaw PJM, Porter JC, Rowland MJ, Scott JT, Semple MG, Singh SJ, Thomas DC, Toshner M, Lewis KE, Thwaites RS, Briggs A, Docherty AB, Kerr S, Lone NI, Quint J, Sheikh A, Thorpe M, Zheng B, Chalmers JD, Ho LP, Horsley A, Marks M, Poinasamy K, Raman B, Harrison EM, Wain LV, Brightling CE, Abel K, Adamali H, Adeloye D, Adeyemi O, Adrego R, Aguilar Jimenez LA, Ahmad S, Ahmad Haider N, Ahmed R, Ahwireng N, Ainsworth M, Al-Sheklly B, Alamoudi A, Ali M, Aljaroof M, All AM, Allan L, Allen RJ, Allerton L, Allsop L, Almeida P, Altmann D, Alvarez Corral M, Amoils S, Anderson D, Antoniades C, Arbane G, Arias A, Armour C, Armstrong L, Armstrong N, Arnold D, Arnold H, Ashish A, Ashworth A, Ashworth M, Aslani S, Assefa-Kebede H, Atkin C, Atkin P, Aung H, Austin L, Avram C, Ayoub A, Babores M, Baggott R, Bagshaw J, Baguley D, Bailey L, Baillie JK, Bain S, Bakali M, Bakau M, Baldry E, Baldwin D, Ballard C, Banerjee A, Bang B, Barker RE, Barman L, Barratt S, Barrett F, Basire D, Basu N, Bates M, Bates A, Batterham R, Baxendale H, Bayes H, Beadsworth M, Beckett P, Beggs M, Begum M, Bell D, Bell R, Bennett K, Beranova E, Bermperi A, Berridge A, Berry C, Betts S, Bevan E, Bhui K, Bingham M, Birchall K, Bishop L, Bisnauthsing K, Blaikely J, Bloss A, Bolger A, Bonnington J, Botkai A, Bourne C, Bourne M, Bramham K, Brear L, Breen G, Breeze J, Bright E, Brill S, Brindle K, Broad L, Broadley A, Brookes C, Broome M, Brown A, Brown A, Brown J, Brown J, Brown M, Brown M, Brown V, Brugha T, Brunskill N, Buch M, Buckley P, Bularga A, Bullmore E, Burden L, Burdett T, Burn D, Burns G, Burns A, Busby J, Butcher R, Butt A, Byrne S, Cairns P, Calder PC, Calvelo E, Carborn H, Card B, Carr C, Carr L, Carson G, Carter P, Casey A, Cassar M, Cavanagh J, Chablani M, Chambers RC, Chan F, Channon KM, Chapman K, Charalambou A, Chaudhuri N, Checkley A, Chen J, Cheng Y, Chetham L, Childs C, Chilvers ER, Chinoy H, Chiribiri A, Chong-James K, Choudhury N, Chowienczyk P, Christie C, Chrystal M, Clark D, Clark C, Clarke J, Clohisey S, Coakley G, Coburn Z, Coetzee S, Cole J, Coleman C, Conneh F, Connell D, Connolly B, Connor L, Cook A, Cooper B, Cooper J, Cooper S, Copeland D, Cosier T, Coulding M, Coupland C, Cox E, Craig T, Crisp P, Cristiano D, Crooks MG, Cross A, Cruz I, Cullinan P, Cuthbertson D, Daines L, Dalton M, Daly P, Daniels A, Dark P, Dasgin J, David A, David C, Davies E, Davies F, Davies G, Davies GA, Davies K, Dawson J, Daynes E, Deakin B, Deans A, Deas C, Deery J, Defres S, Dell A, Dempsey K, Denneny E, Dennis J, Dewar A, Dharmagunawardena R, Dickens C, Dipper A, Diver S, Diwanji SN, Dixon M, Djukanovic R, Dobson H, Dobson SL, Donaldson A, Dong T, Dormand N, Dougherty A, Dowling R, Drain S, Draxlbauer K, Drury K, Dulawan P, Dunleavy A, Dunn S, Earley J, Edwards S, Edwardson C, El-Taweel H, Elliott A, Elliott K, Ellis Y, Elmer A, Evans D, Evans H, Evans J, Evans R, Evans RI, Evans T, Evenden C, Evison L, Fabbri L, Fairbairn S, Fairman A, Fallon K, Faluyi D, Favager C, Fayzan T, Featherstone J, Felton T, Finch J, Finney S, Finnigan J, Finnigan L, Fisher H, Fletcher S, Flockton R, Flynn M, Foot H, Foote D, Ford A, Forton D, Fraile E, Francis C, Francis R, Francis S, Frankel A, Fraser E, Free R, French N, Fu X, Furniss J, Garner L, Gautam N, George J, George P, Gibbons M, Gill M, Gilmour L, Gleeson F, Glossop J, Glover S, Goodman N, Goodwin C, Gooptu B, Gordon H, Gorsuch T, Greatorex M, Greenhaff PL, Greenhalgh A, Greenwood J, Gregory H, Gregory R, Grieve D, Griffin D, Griffiths L, Guerdette AM, Guillen Guio B, Gummadi M, Gupta A, Gurram S, Guthrie E, Guy Z, H Henson H, Hadley K, Haggar A, Hainey K, Hairsine B, Haldar P, Hall I, Hall L, Halling-Brown M, Hamil R, Hancock A, Hancock K, Hanley NA, Haq S, Hardwick HE, Hardy E, Hardy T, Hargadon B, Harrington K, Harris E, Harrison P, Harvey A, Harvey M, Harvie M, Haslam L, Havinden-Williams M, Hawkes J, Hawkings N, Haworth J, Hayday A, Haynes M, Hazeldine J, Hazelton T, Heeley C, Heeney JL, Heightman M, Henderson M, Hesselden L, Hewitt M, Highett V, Hillman T, Hiwot T, Hoare A, Hoare M, Hockridge J, Hogarth P, Holbourn A, Holden S, Holdsworth L, Holgate D, Holland M, Holloway L, Holmes K, Holmes M, Holroyd-Hind B, Holt L, Hormis A, Hosseini A, Hotopf M, Howard K, Howell A, Hufton E, Hughes AD, Hughes J, Hughes R, Humphries A, Huneke N, Hurditch E, Husain M, Hussell T, Hutchinson J, Ibrahim W, Ilyas F, Ingham J, Ingram L, Ionita D, Isaacs K, Ismail K, Jackson T, James WY, Jarman C, Jarrold I, Jarvis H, Jastrub R, Jayaraman B, Jezzard P, Jiwa K, Johnson C, Johnson S, Johnston D, Jolley CJ, Jones D, Jones G, Jones H, Jones H, Jones I, Jones L, Jones S, Jose S, Kabir T, Kaltsakas G, Kamwa V, Kanellakis N, Kaprowska S, Kausar Z, Keenan N, Kelly S, Kemp G, Kerslake H, Key AL, Khan F, Khunti K, Kilroy S, King B, King C, Kingham L, Kirk J, Kitterick P, Klenerman P, Knibbs L, Knight S, Knighton A, Kon O, Kon S, Kon SS, Koprowska S, Korszun A, Koychev I, Kurasz C, Kurupati P, Laing C, Lamlum H, Landers G, Langenberg C, Lasserson D, Lavelle-Langham L, Lawrie A, Lawson C, Lawson C, Layton A, Lea A, Lee D, Lee JH, Lee E, Leitch K, Lenagh R, Lewis D, Lewis J, Lewis V, Lewis-Burke N, Li X, Light T, Lightstone L, Lilaonitkul W, Lim L, Linford S, Lingford-Hughes A, Lipman M, Liyanage K, Lloyd A, Logan S, Lomas D, Loosley R, Lota H, Lovegrove W, Lucey A, Lukaschuk E, Lye A, Lynch C, MacDonald S, MacGowan G, Macharia I, Mackie J, Macliver L, Madathil S, Madzamba G, Magee N, Magtoto MM, Mairs N, Majeed N, Major E, Malein F, Malim M, Mallison G, Mandal S, Mangion K, Manisty C, Manley R, March K, Marciniak S, Marino P, Mariveles M, Marouzet E, Marsh S, Marshall B, Marshall M, Martin J, Martineau A, Martinez LM, Maskell N, Matila D, Matimba-Mupaya W, Matthews L, Mbuyisa A, McAdoo S, Weir McCall J, McAllister-Williams H, McArdle A, McArdle P, McAulay D, McCormick J, McCormick W, McCourt P, McGarvey L, McGee C, Mcgee K, McGinness J, McGlynn K, McGovern A, McGuinness H, McInnes IB, McIntosh J, McIvor E, McIvor K, McLeavey L, McMahon A, McMahon MJ, McMorrow L, Mcnally T, McNarry M, McNeill J, McQueen A, McShane H, Mears C, Megson C, Megson S, Mehta P, Meiring J, Melling L, Mencias M, Menzies D, Merida Morillas M, Michael A, Milligan L, Miller C, Mills C, Mills NL, Milner L, Misra S, Mitchell J, Mohamed A, Mohamed N, Mohammed S, Molyneaux PL, Monteiro W, Moriera S, Morley A, Morrison L, Morriss R, Morrow A, Moss AJ, Moss P, Motohashi K, Msimanga N, Mukaetova-Ladinska E, Munawar U, Murira J, Nanda U, Nassa H, Nasseri M, Neal A, Needham R, Neill P, Newell H, Newman T, Newton-Cox A, Nicholson T, Nicoll D, Nolan CM, Noonan MJ, Norman C, Novotny P, Nunag J, Nwafor L, Nwanguma U, Nyaboko J, O'Donnell K, O'Brien C, O'Brien L, O'Regan D, Odell N, Ogg G, Olaosebikan O, Oliver C, Omar Z, Orriss-Dib L, Osborne L, Osbourne R, Ostermann M, Overton C, Owen J, Oxton J, Pack J, Pacpaco E, Paddick S, Painter S, Pakzad A, Palmer S, Papineni P, Paques K, Paradowski K, Pareek M, Parfrey H, Pariante C, Parker S, Parkes M, Parmar J, Patale S, Patel B, Patel M, Patel S, Pattenadk D, Pavlides M, Payne S, Pearce L, Pearl JE, Peckham D, Pendlebury J, Peng Y, Pennington C, Peralta I, Perkins E, Peterkin Z, Peto T, Petousi N, Petrie J, Phipps J, Pimm J, Piper Hanley K, Pius R, Plant H, Plein S, Plekhanova T, Plowright M, Polgar O, Poll L, Porter J, Portukhay S, Powell N, Prabhu A, Pratt J, Price A, Price C, Price C, Price D, Price L, Price L, Prickett A, Propescu J, Pugmire S, Quaid S, Quigley J, Qureshi H, Qureshi IN, Radhakrishnan K, Ralser M, Ramos A, Ramos H, Rangeley J, Rangelov B, Ratcliffe L, Ravencroft P, Reddington A, Reddy R, Redfearn H, Redwood D, Reed A, Rees M, Rees T, Regan K, Reynolds W, Ribeiro C, Richards A, Richardson E, Rivera-Ortega P, Roberts K, Robertson E, Robinson E, Robinson L, Roche L, Roddis C, Rodger J, Ross A, Ross G, Rossdale J, Rostron A, Rowe A, Rowland A, Rowland J, Roy K, Roy M, Rudan I, Russell R, Russell E, Saalmink G, Sabit R, Sage EK, Samakomva T, Samani N, Sampson C, Samuel K, Samuel R, Sanderson A, Sapey E, Saralaya D, Sargant J, Sarginson C, Sass T, Sattar N, Saunders K, Saunders P, Saunders LC, Savill H, Saxon W, Sayer A, Schronce J, Schwaeble W, Scott K, Selby N, Sewell TA, Shah K, Shah P, Shankar-Hari M, Sharma M, Sharpe C, Sharpe M, Shashaa S, Shaw A, Shaw K, Shaw V, Shelton S, Shenton L, Shevket K, Short J, Siddique S, Siddiqui S, Sidebottom J, Sigfrid L, Simons G, Simpson J, Simpson N, Singh C, Singh S, Sissons D, Skeemer J, Slack K, Smith A, Smith D, Smith S, Smith J, Smith L, Soares M, Solano TS, Solly R, Solstice AR, Soulsby T, Southern D, Sowter D, Spears M, Spencer LG, Speranza F, Stadon L, Stanel S, Steele N, Steiner M, Stensel D, Stephens G, Stephenson L, Stern M, Stewart I, Stimpson R, Stockdale S, Stockley J, Stoker W, Stone R, Storrar W, Storrie A, Storton K, Stringer E, Strong-Sheldrake S, Stroud N, Subbe C, Sudlow CL, Suleiman Z, Summers C, Summersgill C, Sutherland D, Sykes DL, Sykes R, Talbot N, Tan AL, Tarusan L, Tavoukjian V, Taylor A, Taylor C, Taylor J, Te A, Tedd H, Tee CJ, Teixeira J, Tench H, Terry S, Thackray-Nocera S, Thaivalappil F, Thamu B, Thickett D, Thomas C, Thomas S, Thomas AK, Thomas-Woods T, Thompson T, Thompson AAR, Thornton T, Tilley J, Tinker N, Tiongson GF, Tobin M, Tomlinson J, Tong C, Touyz R, Tripp KA, Tunnicliffe E, Turnbull A, Turner E, Turner S, Turner V, Turner K, Turney S, Turtle L, Turton H, Ugoji J, Ugwuoke R, Upthegrove R, Valabhji J, Ventura M, Vere J, Vickers C, Vinson B, Wade E, Wade P, Wainwright T, Wajero LO, Walder S, Walker S, Walker S, Wall E, Wallis T, Walmsley S, Walsh JA, Walsh S, Warburton L, Ward TJC, Warwick K, Wassall H, Waterson S, Watson E, Watson L, Watson J, Welch C, Welch H, Welsh B, Wessely S, West S, Weston H, Wheeler H, White S, Whitehead V, Whitney J, Whittaker S, Whittam B, Whitworth V, Wight A, Wild J, Wilkins M, Wilkinson D, Williams N, Williams N, Williams J, Williams-Howard SA, Willicombe M, Willis G, Willoughby J, Wilson A, Wilson D, Wilson I, Window N, Witham M, Wolf-Roberts R, Wood C, Woodhead F, Woods J, Wormleighton J, Worsley J, Wraith D, Wrey Brown C, Wright C, Wright L, Wright S, Wyles J, Wynter I, Xu M, Yasmin N, Yasmin S, Yates T, Yip KP, Young B, Young S, Young A, Yousuf AJ, Zawia A, Zeidan L, Zhao B, Zongo O. Clinical characteristics with inflammation profiling of long COVID and association with 1-year recovery following hospitalisation in the UK: a prospective observational study. Lancet Respir Med 2022; 10:761-775. [PMID: 35472304 PMCID: PMC9034855 DOI: 10.1016/s2213-2600(22)00127-8] [Citation(s) in RCA: 144] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND No effective pharmacological or non-pharmacological interventions exist for patients with long COVID. We aimed to describe recovery 1 year after hospital discharge for COVID-19, identify factors associated with patient-perceived recovery, and identify potential therapeutic targets by describing the underlying inflammatory profiles of the previously described recovery clusters at 5 months after hospital discharge. METHODS The Post-hospitalisation COVID-19 study (PHOSP-COVID) is a prospective, longitudinal cohort study recruiting adults (aged ≥18 years) discharged from hospital with COVID-19 across the UK. Recovery was assessed using patient-reported outcome measures, physical performance, and organ function at 5 months and 1 year after hospital discharge, and stratified by both patient-perceived recovery and recovery cluster. Hierarchical logistic regression modelling was performed for patient-perceived recovery at 1 year. Cluster analysis was done using the clustering large applications k-medoids approach using clinical outcomes at 5 months. Inflammatory protein profiling was analysed from plasma at the 5-month visit. This study is registered on the ISRCTN Registry, ISRCTN10980107, and recruitment is ongoing. FINDINGS 2320 participants discharged from hospital between March 7, 2020, and April 18, 2021, were assessed at 5 months after discharge and 807 (32·7%) participants completed both the 5-month and 1-year visits. 279 (35·6%) of these 807 patients were women and 505 (64·4%) were men, with a mean age of 58·7 (SD 12·5) years, and 224 (27·8%) had received invasive mechanical ventilation (WHO class 7-9). The proportion of patients reporting full recovery was unchanged between 5 months (501 [25·5%] of 1965) and 1 year (232 [28·9%] of 804). Factors associated with being less likely to report full recovery at 1 year were female sex (odds ratio 0·68 [95% CI 0·46-0·99]), obesity (0·50 [0·34-0·74]) and invasive mechanical ventilation (0·42 [0·23-0·76]). Cluster analysis (n=1636) corroborated the previously reported four clusters: very severe, severe, moderate with cognitive impairment, and mild, relating to the severity of physical health, mental health, and cognitive impairment at 5 months. We found increased inflammatory mediators of tissue damage and repair in both the very severe and the moderate with cognitive impairment clusters compared with the mild cluster, including IL-6 concentration, which was increased in both comparisons (n=626 participants). We found a substantial deficit in median EQ-5D-5L utility index from before COVID-19 (retrospective assessment; 0·88 [IQR 0·74-1·00]), at 5 months (0·74 [0·64-0·88]) to 1 year (0·75 [0·62-0·88]), with minimal improvements across all outcome measures at 1 year after discharge in the whole cohort and within each of the four clusters. INTERPRETATION The sequelae of a hospital admission with COVID-19 were substantial 1 year after discharge across a range of health domains, with the minority in our cohort feeling fully recovered. Patient-perceived health-related quality of life was reduced at 1 year compared with before hospital admission. Systematic inflammation and obesity are potential treatable traits that warrant further investigation in clinical trials. FUNDING UK Research and Innovation and National Institute for Health Research.
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Garau R, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D. Multicentre real world long-term outcomes in 2773 primary Non-Muscle Invasive Bladder Cancer (NMIBC) patients managed within the Scottish Bladder Cancer Quality Performance Indicator programme. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00243-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Garau R, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D, Paramananthan S, Loy G, Baker S, Grigor K, Smith G. Ceasing surveillance in low risk non-muscle invasive bladder cancer after only 12 months of being recurrence free is un-safe: A validation study from the Scottish bladder cancer Quality Performance Indicator (QPI) programme. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00244-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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JEWELL P, Bramham K, Smith P, Kibble H, Norton S, Mudhaffer A, Akter M, Zuckerman B, Palmer K, Murphy C, Iatropoulou D, Sharpe C, Lioudaki E. POS-029 PATTERNS OF AKI IN PATIENTS HOSPITALISED WITH COVID-19 DURING THE FIRST WAVE OF THE COVID-19 PANDEMIC IN A LARGE UK TERTIARY CENTRE. Kidney Int Rep 2021. [PMCID: PMC8049682 DOI: 10.1016/j.ekir.2021.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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GAMA R, Clery A, Griffiths K, Heraghty N, Peters A, Palmer K, Kibble H, Vincent R, Sharpe C, Cairns H, Bramham K. POS-225 ESTIMATED GLOMERULAR FILTRATION RATE EQUATIONS: DO WE NEED TO USE THE ETHNICITY CORRECTION FACTOR IN PEOPLE OF AFRICAN ANCESTRY OUTSIDE OF THE USA? Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Lerebours A, Robson S, Sharpe C, Nagorskaya L, Gudkov D, Haynes-Lovatt C, Smith JT. Transcriptional Changes in the Ovaries of Perch from Chernobyl. Environ Sci Technol 2020; 54:10078-10087. [PMID: 32686935 DOI: 10.1021/acs.est.0c02575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fish have been highly exposed to radiation in freshwater systems after the Chernobyl Nuclear Power Plant (NPP) accident in 1986 and in freshwater and marine systems after the more recent Fukushima NPP accident in 2011. In the years after the accident, the radioactivity levels rapidly declined due to radioactive decay and environmental processes, but chronic lower dose exposures persisted. To gain insights into the long-term effects of environmental low dose radiation on fish ovaries development, a high-throughput transcriptomic approach including a de novo assembly was applied to different gonad phenotypes of female perch: developed gonads from reference lakes, developed/irradiated from medium contaminated lake, and both developed/irradiated and undeveloped from more highly contaminated lakes. This is the most comprehensive analysis to date of the gene responses in wildlife reproductive system to radiation. Some gene responses that were modulated in irradiated gonads were found to be involved in biological processes including cell differentiation and proliferation (ggnb2, mod5, rergl), cytoskeleton organization (k1C18, mtpn), gonad development (nell2, tcp4), lipid metabolism (ldah, at11b, nltp), reproduction (cyb5, cyp17A, ovos), DNA damage repair (wdhd1, rad51, hus1), and epigenetic mechanisms (dmap1). Identification of these genes provides a better understanding of the underlying molecular mechanisms underpinning the development of the gonad phenotypes of wild perch and how fish may respond to chronic exposure to radiation in their natural environment, though causal attribution of gene responses remains unclear in the undeveloped gonads.
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Affiliation(s)
- Adélaïde Lerebours
- School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth PO1 3QL, United Kingdom
- School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, United Kingdom
| | - Samuel Robson
- Centre for Enzyme Innovation, University of Portsmouth, Portsmouth PO1 2DT, United Kingdom
| | - Colin Sharpe
- School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, United Kingdom
| | - Liubov Nagorskaya
- Applied Science Center for Bioresources of the National Academy of Sciences of Belarus, Minsk 220072, Belarus
| | - Dmitri Gudkov
- Institute of Hydrobiology of the National Academy of Sciences of Ukraine, Kiev UA-04210, Ukraine
| | | | - Jim T Smith
- School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth PO1 3QL, United Kingdom
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13
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Lerebours A, Robson S, Sharpe C, Smith JT. Subtle effects of radiation on embryo development of the 3-spined stickleback. Chemosphere 2020; 248:126005. [PMID: 32032873 DOI: 10.1016/j.chemosphere.2020.126005] [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: 08/01/2019] [Revised: 12/20/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
The Chernobyl and Fukushima nuclear power plant (NPP) accidents that occurred in 1986 and 2011 respectively have led to many years of chronic radiation exposure of wildlife. However, controversies remain on the dose threshold above which an impact on animal health occurs. Fish have been highly exposed immediately after both accidents in freshwater systems around Chernobyl and in freshwater and marine systems around Fukushima. The dose levels decreased during the years after the accidents, however, little is known about the effects of environmental low doses of radiation on fish health. The present laboratory study assesses the effects of an environmentally relevant dose range of radiation (0.1, 1 and 10 mGy/day) on early life stages of the 3-spined stickleback, Gasterosteus aculeatus. The cardiac physiology and developmental features (head width, diameter, area) of high exposed embryos (10 mGy/day) showed no significant change when compared to controls. Embryos exposed to the medium and high dose were slower to hatch than the controls (between 166 and 195 h post-fertilization). After 10 days of exposure (at 240 h post-fertilization), larvae exposed to the high dose displayed comparable growth to controls. High-throughput sequence analysis of transcriptional changes at this time point revealed no significant changes in gene regulation compared to controls regardless of exposure conditions. Our results suggest that exposure of fish embryos to environmental radiation elicits subtle delays in hatching times, but does not impair the overall growth and physiology, nor the gene expression patterns in the recently hatched larvae.
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Affiliation(s)
- Adélaïde Lerebours
- School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, PO1 3QL, United Kingdom; School of Biological Sciences, University of Portsmouth, Portsmouth, PO1 2DY, United Kingdom.
| | - Samuel Robson
- Centre for Enzyme Innovation, University of Portsmouth, Portsmouth, PO1 2DT, United Kingdom
| | - Colin Sharpe
- School of Biological Sciences, University of Portsmouth, Portsmouth, PO1 2DY, United Kingdom
| | - Jim T Smith
- School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, PO1 3QL, United Kingdom
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14
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Piccinni M, Sharpe C, Guille M. Using HDR and a template to introduce an in-frame HA tag on the 3' end of the Xenopus laevis gata2.L open reading frame. MicroPubl Biol 2019; 2019:10.17912/micropub.biology.000170. [PMID: 32550411 PMCID: PMC7252262 DOI: 10.17912/micropub.biology.000170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Matt Guille
- University of Portsmouth, UK,
Correspondence to: Matt Guille ()
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15
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Willis J, Awogbade M, Howard J, Breen C, Abbas A, Harber M, Shendi M A, Andrews P, Galliford J, Shah S, Sharpe C. SUN-053 OUTCOMES FOLLOWING KIDNEY TRANSPLANTATION IN PATIENTS WITH SICKLE CELL DISEASE WITH AND WITHOUT EXCHANGE BLOOD TRANSFUSION. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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16
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Sewell A, Sharpe C, Bloomer J, Fagan C. P401 “Pop-up hospital” - an interactive approach to education and raising awareness of cystic fibrosis for children. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30693-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Fagan C, Sharpe C, Sewell A, Bloomer J. P404 Implementing a pathway for the investigation of Cystic Fibrosis-Related Diabetes in a paediatric cystic fibrosis clinic. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30696-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Sharpe C, Brown H, Bloomer J, Harnett N. P424 Hospital or home: a review of the intravenous antibiotic service within the paediatric cystic fibrosis unit at the Great North Children's Hospital. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30716-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Sharpe C, Thornton DJ, Grencis RK. A sticky end for gastrointestinal helminths; the role of the mucus barrier. Parasite Immunol 2018; 40:e12517. [PMID: 29355990 PMCID: PMC5900928 DOI: 10.1111/pim.12517] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/15/2018] [Indexed: 12/20/2022]
Abstract
Gastrointestinal (GI) nematodes are a group of successful multicellular parasites that have evolved to coexist within the intestinal niche of multiple species. It is estimated that over 10% of the world's population are chronically infected by GI nematodes, making this group of parasitic nematodes a major burden to global health. Despite the large number of affected individuals, there are few effective treatments to eradicate these infections. Research into GI nematode infections has primarily focused on defining the immunological and pathological consequences on host protection. One important but neglected aspect of host protection is mucus, and the concept that mucus is just a simple barrier is no longer tenable. In fact, mucus is a highly regulated and dynamic-secreted matrix, underpinned by a physical hydrated network of highly glycosylated mucins, which is increasingly recognized to have a key protective role against GI nematode infections. Unravelling the complex interplay between mucins, the underlying epithelium and immune cells during infection are a major challenge and are required to fully define the protective role of the mucus barrier. This review summarizes the current state of knowledge on mucins and the mucus barrier during GI nematode infections, with particular focus on murine models of infection.
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Affiliation(s)
- C Sharpe
- Manchester Immunology Group, Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - D J Thornton
- Manchester Immunology Group, Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - R K Grencis
- Manchester Immunology Group, Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
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20
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Mason K, Sharpe C, Davis J, Koldej R, Tam C, Ritchie D. COMPARISON OF INNATE IMMUNITY CHANGES FOLLOWING IBRUTINIB AND VENETOCLAX TREATMENT OF RELAPSED CHRONIC LYMPHOCYTIC LEUKAEMIA. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K. Mason
- Department of Haematology and Bone Marrow Transplantation; The Royal Melbourne Hospital; Parkville Australia
| | - C. Sharpe
- Medicine, Dentistry and Health Sciences; The University of Melbourne; Parkville Australia
| | - J. Davis
- ACRF Translational research laboratory; The Royal Melbourne Hospital; Parkville Australia
| | - R. Koldej
- ACRF Translational research laboratory; The Royal Melbourne Hospital; Parkville Australia
| | - C. Tam
- Haematology; Peter MacCallum Cancer Centre; Parkville Australia
| | - D. Ritchie
- ACRF Translational research laboratory; The Royal Melbourne Hospital; Parkville Australia
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21
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Short S, Peterkin T, Guille M, Patient R, Sharpe C. Short linear motif acquisition, exon formation and alternative splicing determine a pathway to diversity for NCoR-family co-repressors. Open Biol 2016; 5:rsob.150063. [PMID: 26289800 PMCID: PMC4554918 DOI: 10.1098/rsob.150063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Vertebrate NCoR-family co-repressors play central roles in the timing of embryo and stem cell differentiation by repressing the activity of a range of transcription factors. They interact with nuclear receptors using short linear motifs (SLiMs) termed co-repressor for nuclear receptor (CoRNR) boxes. Here, we identify the pathway leading to increasing co-repressor diversity across the deuterostomes. The final complement of CoRNR boxes arose in an ancestral cephalochordate, and was encoded in one large exon; the urochordates and vertebrates then split this region between 10 and 12 exons. In Xenopus, alternative splicing is prevalent in NCoR2, but absent in NCoR1. We show for one NCoR1 exon that alternative splicing can be recovered by a single point mutation, suggesting NCoR1 lost the capacity for alternative splicing. Analyses in Xenopus and zebrafish identify that cellular context, rather than gene sequence, predominantly determines species differences in alternative splicing. We identify a pathway to diversity for the NCoR family beginning with the addition of a SLiM, followed by gene duplication, the generation of alternatively spliced isoforms and their differential deployment.
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Affiliation(s)
- Stephen Short
- Institute of Marine Sciences, School of Biological Science, University of Portsmouth, Portsmouth PO1 2DY, UK
| | - Tessa Peterkin
- The Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK
| | - Matthew Guille
- Institute of Biomolecular and Biomedical Science, School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, UK European Xenopus Resource Centre, University of Portsmouth, St Michael's Building, Portsmouth PO1 2DT, UK
| | - Roger Patient
- The Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK
| | - Colin Sharpe
- Institute of Biomolecular and Biomedical Science, School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, UK European Xenopus Resource Centre, University of Portsmouth, St Michael's Building, Portsmouth PO1 2DT, UK
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22
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Nogueira JM, Hawrot K, Sharpe C, Noble A, Wood WM, Jorge EC, Goldhamer DJ, Kardon G, Dietrich S. The emergence of Pax7-expressing muscle stem cells during vertebrate head muscle development. Front Aging Neurosci 2015; 7:62. [PMID: 26042028 PMCID: PMC4436886 DOI: 10.3389/fnagi.2015.00062] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 01/12/2015] [Accepted: 04/10/2015] [Indexed: 12/13/2022] Open
Abstract
Pax7 expressing muscle stem cells accompany all skeletal muscles in the body and in healthy individuals, efficiently repair muscle after injury. Currently, the in vitro manipulation and culture of these cells is still in its infancy, yet muscle stem cells may be the most promising route toward the therapy of muscle diseases such as muscular dystrophies. It is often overlooked that muscular dystrophies affect head and body skeletal muscle differently. Moreover, these muscles develop differently. Specifically, head muscle and its stem cells develop from the non-somitic head mesoderm which also has cardiac competence. To which extent head muscle stem cells retain properties of the early head mesoderm and might even be able to switch between a skeletal muscle and cardiac fate is not known. This is due to the fact that the timing and mechanisms underlying head muscle stem cell development are still obscure. Consequently, it is not clear at which time point one should compare the properties of head mesodermal cells and head muscle stem cells. To shed light on this, we traced the emergence of head muscle stem cells in the key vertebrate models for myogenesis, chicken, mouse, frog and zebrafish, using Pax7 as key marker. Our study reveals a common theme of head muscle stem cell development that is quite different from the trunk. Unlike trunk muscle stem cells, head muscle stem cells do not have a previous history of Pax7 expression, instead Pax7 expression emerges de-novo. The cells develop late, and well after the head mesoderm has committed to myogenesis. We propose that this unique mechanism of muscle stem cell development is a legacy of the evolutionary history of the chordate head mesoderm.
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Affiliation(s)
- Julia Meireles Nogueira
- School of Pharmacy and Biomedical Sciences, Institute for Biomedical and Biomolecular Science, University of Portsmouth Portsmouth, UK ; Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais Belo Horizonte, Brazil
| | - Katarzyna Hawrot
- School of Pharmacy and Biomedical Sciences, Institute for Biomedical and Biomolecular Science, University of Portsmouth Portsmouth, UK
| | - Colin Sharpe
- School of Biological Sciences, Institute for Biomedical and Biomolecular Science, University of Portsmouth Portsmouth, UK
| | - Anna Noble
- European Xenopus Resource Centre, School of Biological Sciences, University of Portsmouth Portsmouth, UK
| | - William M Wood
- Department of Molecular and Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut Storrs, CT, USA
| | - Erika C Jorge
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais Belo Horizonte, Brazil
| | - David J Goldhamer
- Department of Molecular and Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut Storrs, CT, USA
| | - Gabrielle Kardon
- Department of Human Genetics, University of Utah Salt Lake City, UT, USA
| | - Susanne Dietrich
- School of Pharmacy and Biomedical Sciences, Institute for Biomedical and Biomolecular Science, University of Portsmouth Portsmouth, UK
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Lours-Calet C, Alvares LE, El-Hanfy AS, Gandesha S, Walters EH, Sobreira DR, Wotton KR, Jorge EC, Lawson JA, Kelsey Lewis A, Tada M, Sharpe C, Kardon G, Dietrich S. Evolutionarily conserved morphogenetic movements at the vertebrate head-trunk interface coordinate the transport and assembly of hypopharyngeal structures. Dev Biol 2014; 390:231-46. [PMID: 24662046 PMCID: PMC4010675 DOI: 10.1016/j.ydbio.2014.03.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 12/13/2022]
Abstract
The vertebrate head–trunk interface (occipital region) has been heavily remodelled during evolution, and its development is still poorly understood. In extant jawed vertebrates, this region provides muscle precursors for the throat and tongue (hypopharyngeal/hypobranchial/hypoglossal muscle precursors, HMP) that take a stereotype path rostrally along the pharynx and are thought to reach their target sites via active migration. Yet, this projection pattern emerged in jawless vertebrates before the evolution of migratory muscle precursors. This suggests that a so far elusive, more basic transport mechanism must have existed and may still be traceable today. Here we show for the first time that all occipital tissues participate in well-conserved cell movements. These cell movements are spearheaded by the occipital lateral mesoderm and ectoderm that split into two streams. The rostrally directed stream projects along the floor of the pharynx and reaches as far rostrally as the floor of the mandibular arch and outflow tract of the heart. Notably, this stream leads and engulfs the later emerging HMP, neural crest cells and hypoglossal nerve. When we (i) attempted to redirect hypobranchial/hypoglossal muscle precursors towards various attractants, (ii) placed non-migratory muscle precursors into the occipital environment or (iii) molecularly or (iv) genetically rendered muscle precursors non-migratory, they still followed the trajectory set by the occipital lateral mesoderm and ectoderm. Thus, we have discovered evolutionarily conserved morphogenetic movements, driven by the occipital lateral mesoderm and ectoderm, that ensure cell transport and organ assembly at the head–trunk interface. At the vertebrate head–trunk interface, all tissues engage in stereotype cell movements. A ventrally–rostrally directed stream of cells leads along the floor of the pharynx to the developing jaw and outflow tract of the heart. The cell movements are spearheaded by the lateral mesoderm and surface ectoderm; muscle precursors for throat and tongue muscles (hypopharyngeal muscles); neural crest cells and outgrowing axons of the hypoglossal nerve follow. Hypopharyngeal muscle precursors follow the trajectory set by the lateral mesoderm and ectoderm, even when challenged with ectopic attractants or when rendered non-migratory. The newly discovered cell movements are the likely ground state for cell transport and organ assembly at the head–trunk interface before actively migrating muscle precursors evolved in “bony” (osteichthyan) vertebrates.
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Affiliation(s)
- Corinne Lours-Calet
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; GReD - Génétique Reproduction et Développement, UMR CNRS 6247, INSERM U931, Clermont Université, 24, Avenue des Landais, BP 80026, 63171 Aubiere Cedex, France
| | - Lucia E Alvares
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; Department of Histology and Embryology, University of Campinas (UNICAMP), Rua Charles Darwin s/n, Cx. Postal 6109, CEP 13083-863 Campinas, São Paulo, Brazil
| | - Amira S El-Hanfy
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK
| | - Saniel Gandesha
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; College Road Dental Practice, 2 College Road, Bromsgrove, B60 2NE
| | - Esther H Walters
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK
| | - Débora Rodrigues Sobreira
- Department of Histology and Embryology, University of Campinas (UNICAMP), Rua Charles Darwin s/n, Cx. Postal 6109, CEP 13083-863 Campinas, São Paulo, Brazil; Institute for Biomedical and Biomolecular Science (IBBS), School of Pharmacy and Biomedical Sciences, University of Portsmouth, St. Michael׳s Building, White Swan Road, Portsmouth PO1 2DT, UK
| | - Karl R Wotton
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG) and UPF, Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Erika C Jorge
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Jennifer A Lawson
- Department of Human Genetics, University of Utah, 15 North 2030 East, Salt Lake City, UT 84112, USA
| | - A Kelsey Lewis
- Department of Human Genetics, University of Utah, 15 North 2030 East, Salt Lake City, UT 84112, USA
| | - Masazumi Tada
- Department of Cell & Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Colin Sharpe
- Institute for Biomedical and Biomolecular Science (IBBS), School of Biology, University of Portsmouth, St. Michael׳s Building, White Swan Road, Portsmouth PO1 2DT, UK
| | - Gabrielle Kardon
- Department of Human Genetics, University of Utah, 15 North 2030 East, Salt Lake City, UT 84112, USA
| | - Susanne Dietrich
- School of Biomedical & Health Sciences, King׳s College London, Hodgkin Building G43S/44S, Guy׳s Campus, London SE1 1UL, UK; Institute for Biomedical and Biomolecular Science (IBBS), School of Pharmacy and Biomedical Sciences, University of Portsmouth, St. Michael׳s Building, White Swan Road, Portsmouth PO1 2DT, UK.
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Szotowska M, Chudek J, Wiecek A, Adamczak M, Bossola M, DI Stasio E, Antocicco M, Silvestri P, Tazza L, Stec A, Koziol - Montewka M, Ksiazek A, Birnie K, Caskey F, Geeson AI, Dairaghi D, Johnson D, Leleti M, Miao S, Xiao H, Jennette JC, Powers JP, Seitz L, Wang Y, Jaen JC, Schall TJ, Bekker P, Arai H, Hayashi H, Sugiyama K, Yamamoto K, Koide S, Murakami K, Tomita M, Hasegawa M, Yuzawa Y, Karasavvidou D, Karasavvidou D, Kalaitzidis R, Spanos G, Pappas K, Tatsioni A, Siamopoulos K, Zhang YY, Tang Z, Chen DM, Zhang MC, Liu ZH, Milovanov Y, Milovanova L, Kozlovskaya L, Klein C, Noertersheuser P, Mensing S, Teuscher N, Meyer C, Dumas E, Awni W, Dezfoolian H, Samuelsson O, Svensson M, Yasuda Y, Kato S, Tsuboi N, Sato W, Maruyama S, Imai E, Yuzawa Y, Matsuo S, Sarafidis P, Blacklock R, Wood E, Rumjon A, Simmonds S, Fletcher-Rogers J, Elias R, Tucker B, Baynes D, Sharpe C, Vinen K, Hebbar S, Goldsberry A, Chin M, Meyer C, Audhya P. Clinical studies in CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Handley SA, Raja KB, Sharpe C, Flanagan RJ. Measurement of serum lanthanum in patients treated with lanthanum carbonate by inductively coupled plasma-mass spectrometry. Ann Clin Biochem 2011; 48:178-82. [DOI: 10.1258/acb.2010.010162] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background Lanthanum carbonate is used as a phosphate binder in patients with stage V chronic kidney disease (CKD). While well tolerated in clinical trials, with no toxicity reported as regards bone and liver metabolism, and cognitive function, concerns remain over possible toxicity. Published methods for the measurement of lanthanum ion in biological samples include aggressive and complicated sample preparation steps that are unsuitable for routine use. A simple method has been developed and validated for the measurement of serum lanthanum. Method A ThermoFisher Scientific XSERIES-II inductively coupled plasma-mass spectrometer was used to monitor 139La. Validation was undertaken using internal quality control solutions containing lanthanum ion (0.20, 0.70 and 4.00 μg/L). Lanthanum was measured in patients (number = 20) with CKD prescribed lanthanum carbonate (500–1500 mg/d) and patients undergoing haemodialysis not prescribed lanthanum carbonate (number = 20). Results Accuracy and imprecision were >95% and <5%, respectively. Calibration was linear (range 0.1–5 μg/L, R2 = 0.99). The lower limit of quantification (LLoQ) was 0.1 μg/L lanthanum ion. In patients with CKD not prescribed lanthanum carbonate, serum lanthanum was below the LLoQ. Out of 20 CKD patients prescribed lanthanum carbonate, serum lanthanum was measurable in only 12 (range 0.11–0.60 μg/L lanthanum ion). There was no apparent relationship between dose and serum lanthanum in these patients. Conclusions A lack of relationship between the dose of lanthanum carbonate and the serum lanthanum concentration may have been due to poor adherence to the treatment regimen. However the concentrations measured were close to the LLoQ.
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Affiliation(s)
- S A Handley
- Trace Elements and Toxicology Laboratories, Department of Clinical Biochemistry
| | - K B Raja
- Trace Elements and Toxicology Laboratories, Department of Clinical Biochemistry
| | - C Sharpe
- Department of Renal Medicine, King's College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK
| | - R J Flanagan
- Trace Elements and Toxicology Laboratories, Department of Clinical Biochemistry
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Mahmud SM, Franco EL, Turner D, Platt RW, Beck P, Skarsgard D, Tonita J, Sharpe C, Aprikian AG. Use of non-steroidal anti-inflammatory drugs and prostate cancer risk: a population-based nested case-control study. PLoS One 2011; 6:e16412. [PMID: 21297996 PMCID: PMC3030588 DOI: 10.1371/journal.pone.0016412] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Accepted: 12/14/2010] [Indexed: 11/19/2022] Open
Abstract
Background Despite strong laboratory evidence that non-steroidal anti-inflammatory drugs (NSAIDs) could prevent prostate cancer, epidemiological studies have so far reported conflicting results. Most studies were limited by lack of information on dosage and duration of use of the different classes of NSAIDs. Methods We conducted a nested case-control study using data from Saskatchewan Prescription Drug Plan (SPDP) and Cancer Registry to examine the effects of dose and duration of use of five classes of NSAIDs on prostate cancer risk. Cases (N = 9,007) were men aged ≥40 years diagnosed with prostatic carcinoma between 1985 and 2000, and were matched to four controls on age and duration of SPDP membership. Detailed histories of exposure to prescription NSAIDs and other drugs were obtained from the SPDP. Results Any use of propionates (e.g., ibuprofen, naproxen) was associated with a modest reduction in prostate cancer risk (Odds ratio = 0.90; 95%CI 0.84-0.95), whereas use of other NSAIDs was not. In particular, we did not observe the hypothesized inverse association with aspirin use (1.01; 0.95–1.07). There was no clear evidence of dose-response or duration-response relationships for any of the examined NSAID classes. Conclusions Our findings suggest modest benefits of at least some NSAIDs in reducing prostate cancer risk.
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Thomas J, Jacobson GA, Narkowicz CK, Peterson GM, Burnet H, Sharpe C. REVIEW ARTICLE: Toenail onychomycosis: an important global disease burden. J Clin Pharm Ther 2010; 35:497-519. [DOI: 10.1111/j.1365-2710.2009.01107.x] [Citation(s) in RCA: 204] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Sewell A, Sharpe C, Bloomer J, Spencer D. Newborn screening in the northern region difficulties and dilemmas. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60376-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Malartre M, Short S, Sharpe C. Xenopus embryos lacking specific isoforms of the corepressor SMRT develop abnormal heads. Dev Biol 2006; 292:333-43. [PMID: 16500640 DOI: 10.1016/j.ydbio.2006.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Revised: 12/22/2005] [Accepted: 01/07/2006] [Indexed: 11/18/2022]
Abstract
The corepressor SMRT acts on a range of transcription factors, including the retinoid and thyroid hormone nuclear receptors. The carboxy-terminal region of SMRT contains CoRNR box motifs that mediate these interactions. We have shown, in Xenopus, that SMRT can exist as isoforms containing either two or three CoRNR boxes depending on the alternative splicing of exon 37b. The number of SMRT transcript isoforms expressed increases during development until all sixteen possible isoforms are identified in the swimming tadpole. To eliminate specific SMRT isoforms, we have developed a process that uses an antisense morpholino oligonucleotide in Xenopus to dictate the outcome of alternative splicing at a defined exon and used this to inhibit the formation of transcripts containing exon 37b. These embryos are therefore limited to the expression of SMRT isoforms that contain two rather than three CoRNR boxes. Analysis of responsive genes in these embryos shows that targets of thyroid hormone, but not retinoid signaling are affected by the elimination of exon 37b. Morpholino-injected embryos have swimming abnormalities and develop altered head morphology, an expanded olfactory epithelium and disorganized peripheral axons. These experiments indicate a critical role for the alternative splicing of SMRT in development.
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Affiliation(s)
- Marianne Malartre
- School of Biological Sciences, Institute of Biomedical and Biomolecular Sciences, University of Portsmouth, PO1 2DY, UK
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Shu X, Zeng Z, Eckmiller MS, Gautier P, Vlachantoni D, Manson FDC, Tulloch B, Sharpe C, Gorecki DC, Wright AF. Developmental and Tissue Expression ofXenopus laevis RPGR. ACTA ACUST UNITED AC 2006; 47:348-56. [PMID: 16384984 DOI: 10.1167/iovs.05-0858] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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] [Indexed: 11/24/2022]
Abstract
PURPOSE The present study examined the developmental and tissue expression of the retinitis pigmentosa GTPase regulator (RPGR) gene in Xenopus laevis. METHODS The cDNA for X. laevis RPGR (XRPGR) was isolated from adult eye mRNA by reverse transcription-polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends. The deduced peptide sequence was aligned with RPGR orthologues. Gene expression was examined by whole-mount in situ hybridization and RT-PCR. The localization of XRPGR in X. laevis photoreceptor cells and XTC-2 cells was determined by immunostaining. RESULTS The XRPGR(ex1-19) isoform encodes a protein of 727 amino acids containing an RCC1 domain and a C-terminal isoprenylation anchorage motif. It shares 33% to 41% amino acid identity with human, mouse, and dog RPGR. The C-terminal exon of the alternatively spliced RPGR(ORF15) isoform is also conserved across species. XRPGR is expressed at the earliest stages of X. laevis development and persists into adulthood, where expression is highest in the eye. XRPGR is expressed in presumptive eye fields (stages 18 to 22), becoming largely restricted to the central retina (stages 28 to 40). XRPGR protein colocalizes with beta-tubulin at the X. laevis ciliary axoneme and with gamma-tubulin at centrosomes in XTC-2 cells. CONCLUSIONS XRPGR is widely expressed throughout development but shows highest expression after the appearance of the eye primordium and persists in the eye into adulthood. The data are consistent with XRPGR expression in a single microtubular organelle-the centriole or basal body and associated ciliary transitional zone found in modified sensory cilia of photoreceptors and motile cilia.
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Affiliation(s)
- Xinhua Shu
- MRC Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
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Short S, Malartre M, Sharpe C. SMRT has tissue-specific isoform profiles that include a form containing one CoRNR box. Biochem Biophys Res Commun 2005; 334:845-52. [PMID: 16026760 DOI: 10.1016/j.bbrc.2005.06.175] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2005] [Accepted: 06/30/2005] [Indexed: 11/21/2022]
Abstract
SMRT acts as a corepressor for a range of transcription factors. The amino-terminal part of the protein includes domains that mainly mediate transcriptional repression whilst the carboxy-terminal part includes domains that interact with nuclear receptors using up to three motifs called CoRNR boxes. The region of the SMRT primary transcript encoding the interaction domains is subject to alternative splicing that varies the inclusion of the third CoRNR box. The profile in mice includes an abundant, novel SMRT isoform that possesses just one CoRNR box. Mouse tissues therefore express SMRT isoforms containing one, two or three CoRNR boxes. In frogs, the SMRT isoform profile is tissue-specific. The mouse also shows distinct profiles generated by differential expression levels of the SMRT transcript isoforms. The formation of multiple SMRT isoforms and their tissue-specific regulation indicates a mechanism, whereby cells can define the repertoire of transcription factors regulated by SMRT.
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Affiliation(s)
- Stephen Short
- University of Portsmouth, School of Biological Sciences and Institute of Biomolecular and Biomedical Sciences, King Henry Building, King Henry I St, Portsmouth PO1 2DY, UK
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Malartre M, Short S, Sharpe C. Alternative splicing generates multiple SMRT transcripts encoding conserved repressor domains linked to variable transcription factor interaction domains. Nucleic Acids Res 2004; 32:4676-86. [PMID: 15342788 PMCID: PMC516058 DOI: 10.1093/nar/gkh786] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Silencing mediator for retinoid and thyroid hormone receptor (SMRT) and nuclear receptor corepressor protein (NCoR) are corepressors that interact with a range of transcription factors. They both consist of N-terminal repressor domains that associate with histone deacetylases and C-terminal interaction domains (IDs) that contain CoRNR box motifs. These motifs mediate the interaction between corepressors and nuclear receptors (NRs), such as the retinoid and thyroid hormone receptors. However, whilst NCoR produces a single transcript during Xenopus development, xSMRT is subject to alternative splicing at four sites in the 3' part of the transcript, the region encoding the C-terminal IDs. Although this provides the potential to produce 16 different transcripts, only five isoforms are found in early embryos. The sites of alternative splicing predict that the resultant isoforms will differ in their ability to interact with NRs, as one site varies the number of CoRNR boxes, the second site changes the sequence flanking CoRNR box-1 and the other sites delete amino acid residues between CoRNR boxes 1 and 2 and so alter the critical spacing between these motifs. SMRT and NCoR therefore represent paralogues in which one form, SMRT, has evolved the ability to generate multiple isoforms whereas the other, NCoR, is invariant in Xenopus development.
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Affiliation(s)
- Marianne Malartre
- Institute of Biomedical and Biomolecular Science, School of Biological Science, University of Portsmouth, King Henry I St, Portsmouth PO1 2DY, UK
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Abstract
OBJECTIVE To assess the outcomes of infants born to mothers receiving methadone for the management of pain in pregnancy. DESIGN A retrospective audit was conducted of neonatal outcomes in 19 cases in which methadone was used in the management of maternal pain (pain group). Twenty four cases in which methadone was used for maintenance of opiate addiction in pregnancy served as a comparison group (maintenance group). SETTING Regional level 3 neonatal service. RESULTS Infants in the pain group were exposed to significantly smaller methadone doses, for shorter periods, starting later in pregnancy. Only 11% of them required treatment for neonatal abstinence syndrome, whereas 58% of infants in the maintenance group required treatment. Other neonatal morbidity in the pain group was considerable, probably related to prematurity. Infants in the pain group had significantly higher z scores for birth weight and head circumference, but not length, than the infants in the maintenance group. CONCLUSIONS Methadone used for the treatment of maternal pain resulted in a low incidence of neonatal abstinence syndrome. Infants were normally grown. However, there was significant morbidity related to slight prematurity, and delivery in this group should be delayed until term if possible.
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Affiliation(s)
- C Sharpe
- Newborn Services, National Women's Hospital, Private Bag 92 189, Auckland, New Zealand
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Sharpe C, Robinson JJ. Characterization of matrix metalloprotease activities induced in the sea urchin extraembryonic matrix, the hyaline layer. Biochem Cell Biol 2002; 79:461-8. [PMID: 11527215] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
Hyaline layers, freshly prepared from one-hour-old embryos, were devoid of gelatin-cleavage activity. However, upon storage at 4 degrees C, gelatin-cleavage activities appeared; three species of apparent mol mass 94 --> 117-, 90-, and 45-kDa were seen. All three species required zinc for activity. Using gel-exclusion chromatography we separated the 94 --> 117-, and 90-kDa species from the 45-kDa activity. The two higher mol mass species were inhibited by ethylenebis (oxyethylenenitrilo) tetraacetic acid and the lost activity was restored by calcium. Reconstitution of activity occurred with an apparent dissociation constant (calcium) of 5 microM. The presence of millimolar concentrations of magnesium had a minimal inhibitory effect on activity. The thermal denaturation profile of the higher mol mass gelatin-cleavage activity was significantly different in the presence and absence of calcium. Stabilization of these activities against thermal denaturation at 60 degrees C occurred with an apparent dissociation constant (calcium) of 0.6 mM. Magnesium had no significant effect on the thermal denaturation profile. Collectively, these results suggest at least two different modes of interaction between calcium and the higher mol mass gelatinases. These conclusions are discussed in the context of the high calcium and magnesium concentrations present in the sea water environment of the sea urchin embryo.
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Affiliation(s)
- C Sharpe
- Department of Biochemistry, Memorial University of Newfoundland, St John's, Canada
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Abstract
Wnt proteins are involved in a large number of events during development and disease. The crucial element in the transduction of the signal elicited by Wnt is the state and activity of beta-catenin. There are two pools of beta-catenin, one associated with cadherins at the cell surface and a soluble one in the cytolasm, whose state and concentration are critical for Wnt signalling. In the absence of Wnt, the cytoplasmic pool is low due to targetted degradation of beta-catenin. Upon Wnt signalling, beta-catenin is stabilized. As a consequence, it can access the nucleus where it interacts with members of the Tcf family of transcription factors to modulate the expression of defined targets. Recent reports indicate that, in addition to Tcfs, beta-catenin can interact with other nuclear proteins raising the possibility that Wnt signalling has a wider modulatory effect on transcription than is mediated by its interactions with Tcfs. BioEssays 23:311-318, 2001.
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Affiliation(s)
- C Sharpe
- Division of Genes and Developmental Biology, School of Biological Sciences, Portsmouth, UK
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Sharpe C, Goldstone K. Retinoid signalling acts during the gastrula stages to promote primary neurogenesis. Int J Dev Biol 2000; 44:463-70. [PMID: 11032180] [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: 02/17/2023]
Abstract
Retinoid signalling has been manipulated at different developmental stages to identify a critical period in the gastrula embryo for retinoid-dependent primary neurone formation. The expression of retinoid receptor RARalpha2 in the posterior neuroectoderm of the gastrula embryo is therefore consistent with a role in primary neurogenesis. In addition we show that the expression of neurogenin-1 and XDelta-1, two genes that contribute to the determination of primary neurone cell-fate in the gastrula embryo, respond to retinoid signalling. These results indicate that retinoid signalling is required for an early step in the process of primary neurogenesis. When retinoid signalling is increased, the number of primary neurones increases, but the phenotype is not the same as the neurogenic phenotype that follows the overexpression of a dominant negative form of XDelta-1. Whereas increased retinoid signalling expands the width of primary neurone stripes, dominant negative XDelta-1 increases the density of primary neurones within the stripes. When retinoid signalling is increased and the primary neurone stripes expand, the expression domain of a floorplate marker contracts. Conversely, when retinoid signalling is inhibited, the expression patterns of floorplate markers widen. These results indicate that retinoid signalling acts at an early stage in primary neural development when the fates of different regions of the neuroectoderm are being determined.
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Affiliation(s)
- C Sharpe
- Department of Zoology, University of Cambridge, England.
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Abstract
In Xenopus, the primary neurons form in three domains either side of the midline in the posterior neurectoderm. At the late neurula stage there are approximately 120 primary sensory neurons on each side of the embryo. Co-injecting synthetic mRNA encoding retinoic acid receptor alpha (NR1B1) and retinoid X receptor beta (NR2B2) results in an increase in the number of primary neurons and this is further enhanced by the addition of retinoic acid indicating that elevated retinoid signalling promotes an increase in the number of cells undergoing primary neurogenesis. However, primary neurogenesis remains confined to the three domains that normally give rise to primary neurons indicating that not all regions of the neurectoderm respond equivalently to elevated retinoid signalling. The inhibition of retinoid signalling with a dominant negative retinoid receptor or treatment with citral, an inhibitor of retinoid metabolism, inhibits the formation of primary neurons. However, the lateral extent of the neurectoderm does not differ following these experimental manipulations suggesting that changes in primary neuron cell number, in response to changes in retinoid signalling, cannot be accounted for by significant gains or losses of neurectoderm. In addition, two lines of evidence are presented to suggest that retinoid signalling affects primary neurogenesis by acting directly on the neurectoderm. First, animal caps neuralized by noggin undergo primary neurogenesis in response to retinoid signalling and second primary neurogenesis is elevated in neural conjugates in which the ectodermal, but not the mesodermal, component has been co-injected with RAR/RXR mRNA.
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Affiliation(s)
- C Sharpe
- Department of Zoology, University of Cambridge, Downing Street, Cambridge, UK.
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Collis N, Elliot LA, Sharpe C, Sharpe DT. Cellulite treatment: a myth or reality: a prospective randomized, controlled trial of two therapies, endermologie and aminophylline cream. Plast Reconstr Surg 1999; 104:1110-4; discussion 1115-7. [PMID: 10654755] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Cellulite is a common phenomenon that particularly affects the thighs and buttocks of women. Little scientific evidence exists to support any of the many advertised treatments for it. A total of 52 of 69 women, who were divided into three groups, completed a 12-week, randomized, controlled trial in which the effectiveness of two different treatments for cellulite was assessed. The patients acted as their own controls. The treatments investigated were twice-daily application of aminophylline cream and twice-weekly treatment with Endermologie ES1. Group 1 (double blind) received aminophylline to one thigh/buttock and a placebo cream to the other. Group 2 (singly blind) received Endermologie to one thigh/buttock. Group 3 received Endermologie to both sides and used the same cream regimen as group 1. Results were assessed subjectively by the patient and by clinical examination and photographic assessment by the surgeon (before and after the trial). Morphologic assessment included body mass index, thigh girth at two points, and thigh fat depth measurement by ultrasound. No statistical difference existed in measurements between legs for any of the treatment groups (paired t test, p > 0.4). The best subjective assessment, by the patients themselves, revealed that only 3 of 35 aminophylline-treated legs and 10 of 35 Endermologie-treated legs had their cellulite appearance improved. The authors do not believe that either of these two treatments is effective in improving the appearance of cellulite.
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Affiliation(s)
- N Collis
- Department of Plastic Surgery, Bradford Royal Infirmary, West Yorkshire, England, UK.
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Collet JP, Sharpe C, Belzile E, Boivin JF, Hanley J, Abenhaim L. Colorectal cancer prevention by non-steroidal anti-inflammatory drugs: effects of dosage and timing. Br J Cancer 1999; 81:62-8. [PMID: 10487613 PMCID: PMC2374346 DOI: 10.1038/sj.bjc.6690651] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Epidemiological studies show that non-steroidal anti-inflammatory drugs (NSAIDs) reduce colorectal cancer incidence. We measured the rate ratio for colorectal adenocarcinoma according to dosage and the timing of exposure by means of a case-control study, nested in a non-concurrent cohort linkage study, using the population of beneficiaries of the Saskatchewan Prescription Drug Plan from 1981 to 1995 with no history of cancer since 1970 as the source population. Four controls per case, matched on age and gender and alive when the case was diagnosed, were randomly selected. Dispensing rates, calculated over successive time periods, characterized NSAID exposure. We accrued 3844 cases of colon cancer and 1971 cases of rectal cancer. For colon cancer a significant trend towards a decreasing rate ratio was associated with increasing exposure during the 6 months preceding diagnosis (P-trend = 0.002). For both cancers, significant trends were associated with exposure 11-15 years before diagnosis (colon: P-trend = 0.01; rectum: P-trend = 0.0001). At the highest exposure levels the rate ratio for colon cancer was 0.57 (95% confidence interval (CI) 0.36-0.89); for rectal cancer it was 0.26 (95% CI 0.11-0.61). No protection was associated with exposure during other periods. The timing of NSAID use must be considered in planning intervention trials to prevent colorectal cancer. There may be a 10-year delay before any preventive effect will appear.
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Affiliation(s)
- J P Collet
- Centre for Clinical Epidemiology and Community Studies, Sir Mortimer B. Davis-Jewish General Hospital, Montréal, Canada
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Collet JP, Schaubel D, Hanley J, Sharpe C, Boivin JF. Controlling confounding when studying large pharmacoepidemiologic databases: a case study of the two-stage sampling design. Epidemiology 1998; 9:309-15. [PMID: 9583424 DOI: 10.1097/00001648-199805000-00011] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Large drug databases have been the source of interesting developments for pharmacoepidemiologic research, because they provide relatively accurate drug exposure histories. An important limitation of these databases is the lack of information on potential confounders. One solution, developed more than a decade ago but not widely used, is "two-stage sampling," in which stage 1 is the collection of information on drug exposure and outcomes, and stage 2 is the collection of confounder data on a subset of the stage 1 sample. The balanced design, wherein an equal number of individuals is selected from each drug exposure/disease category, is usually the most efficient strategy by which to select the stage 2 sample. We illustrate the efficiency of the balanced design in two-stage sampling using data from a provincial health organization and a simulation. We also evaluate the relative importance of factors affecting the precision of the effect estimate of the exposure of interest.
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Affiliation(s)
- J P Collet
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Quebec, Canada
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Abstract
Preexisting computerized databases are potentially valuable sources of epidemiologic data. Since such databases are infrequently created specifically for etiologic research, data may be available for the exposure of interest and, through record linkage, for the endpoint of interest, but lacking for potential confounders. Because of the size of these databases, two-stage sampling is an efficient alternative to surveying the entire study population for confounder data. At stage 1, information on exposure and disease status is obtained for the entire study population. Confounder data are collected for probability-selected subsamples at stage 2. Logistic regression is performed on the stage 2 samples, with the parameter estimates and variances appropriately corrected to account for the stage 1 data. In this paper, the authors present methods for determining the required stage 2 sample size in the case of categorical exposure and confounding variables. Sample size tables, power curves, and a computer program have been produced to accommodate a binary exposure and a single binary confounder. With the increasing availability of preexisting yet incomplete databases, the potential for use of two-stage sampling will greatly increase in the future. This investigation provides a basis for estimating the number of participants to sample for the collection of confounder data at the second stage.
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Affiliation(s)
- D Schaubel
- Department of Epidemiology and Biostatistics, Faculty of Medicine, McGill University, Montréal, Québec, Canada
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Sharpe C. Tuberculosis. a multidisciplinary challenge for midwives in Bolton. Midwives (1995) 1997; 110:60-1. [PMID: 9136434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Linn JG, Anema MG, Hodess S, Sharpe C, Cain VA. Perceived health, HIV illness, and mental distress in African-American clients of AIDS counseling centers. J Assoc Nurses AIDS Care 1996; 7:43-51. [PMID: 8679967 DOI: 10.1016/s1055-3290(96)80013-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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] [Indexed: 02/01/2023]
Abstract
The development of effective coping strategies may require that adults with HIV disease have an accurate, and to the extent possible, positive perception of their own health status. This has been found to be lacking among HIV-infected people with limited education/information, including many minority adults. The objective of this study was to test several hypotheses that predict depression and perceived health in African-American adults with HIV disease. Data were obtained from 255 HIV-infected black adults (age > 18) who sought support, counseling, and maintenance services from one of three HIV care and referral centers in the Mid-South. The results emphasized that perceived health status may fulfill a psychological distress moderating or distress-aggravating function for persons with HIV/AIDS.
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Affiliation(s)
- J G Linn
- School of Nursing, Tennessee State University, Nashville, USA
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Abstract
OBJECTIVES To study delay in diagnosis, seizure control, seizure-provoking factors, suitable medications and drug side effects in patients with juvenile myoclonic epilepsy. DESIGN Telephone and personal interview of patients and review of their clinical notes. PARTICIPANTS AND SETTING Thirty-six patients attending an epilepsy clinic at a tertiary referral hospital. RESULTS There was a substantial delay in the diagnosis of juvenile myoclonic epilepsy because the symptom of early-morning myoclonus was not specifically sought. Sodium valproate is the drug of choice, producing absolute seizure control in 63% of cases (19/30). Most patients with poor seizure control had provoked seizures only, emphasising the importance of lifestyle in management. Half of the patients taking sodium valproate experienced side effects, such as weight gain. Lamotrigine is the most suitable alternative. CONCLUSIONS Juvenile myoclonic epilepsy is a common, under-recognised form of epilepsy which is best treated with sodium valproate. If side effects occur, lamotrigine should be used.
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Affiliation(s)
- C Sharpe
- Epilepsy Unit, Westmead Hospital, Sydney, NSW
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Abstract
OBJECTIVE To assess the provision and use of action plans in children attending hospital because of asthma. METHODOLOGY An interviewer administered a structured questionnaire to the parents of 279 children attending the Casualty Department, Outpatient clinics or admitted to hospital because of asthma, at two Level 3 teaching hospitals. RESULTS Only 82 (29%) of the children attending hospital had a written action plan. The majority (57%) were devised by paediatricians and covered the salient aspects of care. However, indications for steroid use were included in only 28% of plans and only 37% of the action plans in children over 5 years incorporated the use of peak flow meters. CONCLUSIONS Action plans are still under-utilized in children with asthma. General practitioners should be encouraged to consider the use of action plans for the group of children not already covered.
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Affiliation(s)
- K P Dawson
- University Department of Paediatrics, Westmead Hospital, New South Wales, Australia
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Abstract
We report the end result of clonazepam (CZP) withdrawal in 13 patients with significant side effects felt to be due to CZP. The present observations supplement the recent report in Seizure by Chataway et al., in proposing a safe CZP withdrawal rate of 0.2 mg/day. Eight of the patients had withdrawal seizures, five had withdrawal symptoms and four patients had no withdrawal problems at all. Ultimately all the patients came off CZP, mainly quite rapidly (3-30 days) with the initial side effects regressing totally in 11 patients.
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Affiliation(s)
- N Buchanan
- Epilepsy Unit, Westmead Hospital, Australia
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Affiliation(s)
- C Sharpe
- Wellcome/CRC Institute, University of Cambridge, UK
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