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Raman B, McCracken C, Cassar MP, Moss AJ, Finnigan L, Samat AHA, Ogbole G, Tunnicliffe EM, Alfaro-Almagro F, Menke R, Xie C, Gleeson F, Lukaschuk E, Lamlum H, McGlynn K, Popescu IA, Sanders ZB, Saunders LC, Piechnik SK, Ferreira VM, Nikolaidou C, Rahman NM, Ho LP, Harris VC, Shikotra A, Singapuri A, Pfeffer P, Manisty C, Kon OM, Beggs M, O'Regan DP, Fuld J, Weir-McCall JR, Parekh D, Steeds R, Poinasamy K, Cuthbertson DJ, Kemp GJ, Semple MG, Horsley A, Miller CA, O'Brien C, Shah AM, Chiribiri A, Leavy OC, Richardson M, Elneima O, McAuley HJC, Sereno M, Saunders RM, Houchen-Wolloff L, Greening NJ, Bolton CE, Brown JS, Choudhury G, Diar Bakerly N, Easom N, Echevarria C, Marks M, Hurst JR, Jones MG, Wootton DG, Chalder T, Davies MJ, De Soyza A, Geddes JR, Greenhalf W, Howard LS, Jacob J, Man WDC, Openshaw PJM, Porter JC, Rowland MJ, Scott JT, Singh SJ, Thomas DC, Toshner M, Lewis KE, Heaney LG, Harrison EM, Kerr S, Docherty AB, Lone NI, Quint J, Sheikh A, Zheng B, Jenkins RG, Cox E, Francis S, Halling-Brown M, Chalmers JD, Greenwood JP, Plein S, Hughes PJC, Thompson AAR, Rowland-Jones SL, Wild JM, Kelly M, Treibel TA, Bandula S, Aul R, Miller K, Jezzard P, Smith S, Nichols TE, McCann GP, Evans RA, Wain LV, Brightling CE, Neubauer S, Baillie JK, Shaw A, Hairsine B, Kurasz C, Henson H, Armstrong L, Shenton L, Dobson H, Dell A, Lucey A, Price A, Storrie A, Pennington C, Price C, Mallison G, Willis G, Nassa H, Haworth J, Hoare M, Hawkings N, Fairbairn S, Young S, Walker S, Jarrold I, Sanderson A, David C, Chong-James K, Zongo O, James WY, Martineau A, King B, Armour C, McAulay D, Major E, McGinness J, McGarvey L, Magee N, Stone R, Drain S, Craig T, Bolger A, Haggar A, Lloyd A, Subbe C, Menzies D, Southern D, McIvor E, Roberts K, Manley R, Whitehead V, Saxon W, Bularga A, Mills NL, El-Taweel H, Dawson J, Robinson L, Saralaya D, Regan K, Storton K, Brear L, Amoils S, Bermperi A, Elmer A, Ribeiro C, Cruz I, Taylor J, Worsley J, Dempsey K, Watson L, Jose S, Marciniak S, Parkes M, McQueen A, Oliver C, Williams J, Paradowski K, Broad L, Knibbs L, Haynes M, Sabit R, Milligan L, Sampson C, Hancock A, Evenden C, Lynch C, Hancock K, Roche L, Rees M, Stroud N, Thomas-Woods T, Heller S, Robertson E, Young B, Wassall H, Babores M, Holland M, Keenan N, Shashaa S, Price C, Beranova E, Ramos H, Weston H, Deery J, Austin L, Solly R, Turney S, Cosier T, Hazelton T, Ralser M, Wilson A, Pearce L, Pugmire S, Stoker W, McCormick W, Dewar A, Arbane G, Kaltsakas G, Kerslake H, Rossdale J, Bisnauthsing K, Aguilar Jimenez LA, Martinez LM, Ostermann M, Magtoto MM, Hart N, Marino P, Betts S, Solano TS, Arias AM, Prabhu A, Reed A, Wrey Brown C, Griffin D, Bevan E, Martin J, Owen J, Alvarez Corral M, Williams N, Payne S, Storrar W, Layton A, Lawson C, Mills C, Featherstone J, Stephenson L, Burdett T, Ellis Y, Richards A, Wright C, Sykes DL, Brindle K, Drury K, Holdsworth L, Crooks MG, Atkin P, Flockton R, Thackray-Nocera S, Mohamed A, Taylor A, Perkins E, Ross G, McGuinness H, Tench H, Phipps J, Loosley R, Wolf-Roberts R, Coetzee S, Omar Z, Ross A, Card B, Carr C, King C, Wood C, Copeland D, Calvelo E, Chilvers ER, Russell E, Gordon H, Nunag JL, Schronce J, March K, Samuel K, Burden L, Evison L, McLeavey L, Orriss-Dib L, Tarusan L, Mariveles M, Roy M, Mohamed N, Simpson N, Yasmin N, Cullinan P, Daly P, Haq S, Moriera S, Fayzan T, Munawar U, Nwanguma U, Lingford-Hughes A, Altmann D, Johnston D, Mitchell J, Valabhji J, Price L, Molyneaux PL, Thwaites RS, Walsh S, Frankel A, Lightstone L, Wilkins M, Willicombe M, McAdoo S, Touyz R, Guerdette AM, Warwick K, Hewitt M, Reddy R, White S, McMahon A, Hoare A, Knighton A, Ramos A, Te A, Jolley CJ, Speranza F, Assefa-Kebede H, Peralta I, Breeze J, Shevket K, Powell N, Adeyemi O, Dulawan P, Adrego R, Byrne S, Patale S, Hayday A, Malim M, Pariante C, Sharpe C, Whitney J, Bramham K, Ismail K, Wessely S, Nicholson T, Ashworth A, Humphries A, Tan AL, Whittam B, Coupland C, Favager C, Peckham D, Wade E, Saalmink G, Clarke J, Glossop J, Murira J, Rangeley J, Woods J, Hall L, Dalton M, Window N, Beirne P, Hardy T, Coakley G, Turtle L, Berridge A, Cross A, Key AL, Rowe A, Allt AM, Mears C, Malein F, Madzamba G, Hardwick HE, Earley J, Hawkes J, Pratt J, Wyles J, Tripp KA, Hainey K, Allerton L, Lavelle-Langham L, Melling L, Wajero LO, Poll L, Noonan MJ, French N, Lewis-Burke N, Williams-Howard SA, Cooper S, Kaprowska S, Dobson SL, Marsh S, Highett V, Shaw V, Beadsworth M, Defres S, Watson E, Tiongson GF, Papineni P, Gurram S, Diwanji SN, Quaid S, Briggs A, Hastie C, Rogers N, Stensel D, Bishop L, McIvor K, Rivera-Ortega P, Al-Sheklly B, Avram C, Faluyi D, Blaikely J, Piper Hanley K, Radhakrishnan K, Buch M, Hanley NA, Odell N, Osbourne R, Stockdale S, Felton T, Gorsuch T, Hussell T, Kausar Z, Kabir T, McAllister-Williams H, Paddick S, Burn D, Ayoub A, Greenhalgh A, Sayer A, Young A, Price D, Burns G, MacGowan G, Fisher H, Tedd H, Simpson J, Jiwa K, Witham M, Hogarth P, West S, Wright S, McMahon MJ, Neill P, Dougherty A, Morrow A, Anderson D, Grieve D, Bayes H, Fallon K, Mangion K, Gilmour L, Basu N, Sykes R, Berry C, McInnes IB, Donaldson A, Sage EK, Barrett F, Welsh B, Bell M, Quigley J, Leitch K, Macliver L, Patel M, Hamil R, Deans A, Furniss J, Clohisey S, Elliott A, Solstice AR, Deas C, Tee C, Connell D, Sutherland D, George J, Mohammed S, Bunker J, Holmes K, Dipper A, Morley A, Arnold D, Adamali H, Welch H, Morrison L, Stadon L, Maskell N, Barratt S, Dunn S, Waterson S, Jayaraman B, Light T, Selby N, Hosseini A, Shaw K, Almeida P, Needham R, Thomas AK, Matthews L, Gupta A, Nikolaidis A, Dupont C, Bonnington J, Chrystal M, Greenhaff PL, Linford S, Prosper S, Jang W, Alamoudi A, Bloss A, Megson C, Nicoll D, Fraser E, Pacpaco E, Conneh F, Ogg G, McShane H, Koychev I, Chen J, Pimm J, Ainsworth M, Pavlides M, Sharpe M, Havinden-Williams M, Petousi N, Talbot N, Carter P, Kurupati P, Dong T, Peng Y, Burns A, Kanellakis N, Korszun A, Connolly B, Busby J, Peto T, Patel B, Nolan CM, Cristiano D, Walsh JA, Liyanage K, Gummadi M, Dormand N, Polgar O, George P, Barker RE, Patel S, Price L, Gibbons M, Matila D, Jarvis H, Lim L, Olaosebikan O, Ahmad S, Brill S, Mandal S, Laing C, Michael A, Reddy A, Johnson C, Baxendale H, Parfrey H, Mackie J, Newman J, Pack J, Parmar J, Paques K, Garner L, Harvey A, Summersgill C, Holgate D, Hardy E, Oxton J, Pendlebury J, McMorrow L, Mairs N, Majeed N, Dark P, Ugwuoke R, Knight S, Whittaker S, Strong-Sheldrake S, Matimba-Mupaya W, Chowienczyk P, Pattenadk D, Hurditch E, Chan F, Carborn H, Foot H, Bagshaw J, Hockridge J, Sidebottom J, Lee JH, Birchall K, Turner K, Haslam L, Holt L, Milner L, Begum M, Marshall M, Steele N, Tinker N, Ravencroft P, Butcher R, Misra S, Walker S, Coburn Z, Fairman A, Ford A, Holbourn A, Howell A, Lawrie A, Lye A, Mbuyisa A, Zawia A, Holroyd-Hind B, Thamu B, Clark C, Jarman C, Norman C, Roddis C, Foote D, Lee E, Ilyas F, Stephens G, Newell H, Turton H, Macharia I, Wilson I, Cole J, McNeill J, Meiring J, Rodger J, Watson J, Chapman K, Harrington K, Chetham L, Hesselden L, Nwafor L, Dixon M, Plowright M, Wade P, Gregory R, Lenagh R, Stimpson R, Megson S, Newman T, Cheng Y, Goodwin C, Heeley C, Sissons D, Sowter D, Gregory H, Wynter I, Hutchinson J, Kirk J, Bennett K, Slack K, Allsop L, Holloway L, Flynn M, Gill M, Greatorex M, Holmes M, Buckley P, Shelton S, Turner S, Sewell TA, Whitworth V, Lovegrove W, Tomlinson J, Warburton L, Painter S, Vickers C, Redwood D, Tilley J, Palmer S, Wainwright T, Breen G, Hotopf M, Dunleavy A, Teixeira J, Ali M, Mencias M, Msimanga N, Siddique S, Samakomva T, Tavoukjian V, Forton D, Ahmed R, Cook A, Thaivalappil F, Connor L, Rees T, McNarry M, Williams N, McCormick J, McIntosh J, Vere J, Coulding M, Kilroy S, Turner V, Butt AT, Savill H, Fraile E, Ugoji J, Landers G, Lota H, Portukhay S, Nasseri M, Daniels A, Hormis A, Ingham J, Zeidan L, Osborne L, Chablani M, Banerjee A, David A, Pakzad A, Rangelov B, Williams B, Denneny E, Willoughby J, Xu M, Mehta P, Batterham R, Bell R, Aslani S, Lilaonitkul W, Checkley A, Bang D, Basire D, Lomas D, Wall E, Plant H, Roy K, Heightman M, Lipman M, Merida Morillas M, Ahwireng N, Chambers RC, Jastrub R, Logan S, Hillman T, Botkai A, Casey A, Neal A, Newton-Cox A, Cooper B, Atkin C, McGee C, Welch C, Wilson D, Sapey E, Qureshi H, Hazeldine J, Lord JM, Nyaboko J, Short J, Stockley J, Dasgin J, Draxlbauer K, Isaacs K, Mcgee K, Yip KP, Ratcliffe L, Bates M, Ventura M, Ahmad Haider N, Gautam N, Baggott R, Holden S, Madathil S, Walder S, Yasmin S, Hiwot T, Jackson T, Soulsby T, Kamwa V, Peterkin Z, Suleiman Z, Chaudhuri N, Wheeler H, Djukanovic R, Samuel R, Sass T, Wallis T, Marshall B, Childs C, Marouzet E, Harvey M, Fletcher S, Dickens C, Beckett P, Nanda U, Daynes E, Charalambou A, Yousuf AJ, Lea A, Prickett A, Gooptu B, Hargadon B, Bourne C, Christie C, Edwardson C, Lee D, Baldry E, Stringer E, Woodhead F, Mills G, Arnold H, Aung H, Qureshi IN, Finch J, Skeemer J, Hadley K, Khunti K, Carr L, Ingram L, Aljaroof M, Bakali M, Bakau M, Baldwin M, Bourne M, Pareek M, Soares M, Tobin M, Armstrong N, Brunskill N, Goodman N, Cairns P, Haldar P, McCourt P, Dowling R, Russell R, Diver S, Edwards S, Glover S, Parker S, Siddiqui S, Ward TJC, Mcnally T, Thornton T, Yates T, Ibrahim W, Monteiro W, Thickett D, Wilkinson D, Broome M, McArdle P, Upthegrove R, Wraith D, Langenberg C, Summers C, Bullmore E, Heeney JL, Schwaeble W, Sudlow CL, Adeloye D, Newby DE, Rudan I, Shankar-Hari M, Thorpe M, Pius R, Walmsley S, McGovern A, Ballard C, Allan L, Dennis J, Cavanagh J, Petrie J, O'Donnell K, Spears M, Sattar N, MacDonald S, Guthrie E, Henderson M, Guillen Guio B, Zhao B, Lawson C, Overton C, Taylor C, Tong C, Mukaetova-Ladinska E, Turner E, Pearl JE, Sargant J, Wormleighton J, Bingham M, Sharma M, Steiner M, Samani N, Novotny P, Free R, Allen RJ, Finney S, Terry S, Brugha T, Plekhanova T, McArdle A, Vinson B, Spencer LG, Reynolds W, Ashworth M, Deakin B, Chinoy H, Abel K, Harvie M, Stanel S, Rostron A, Coleman C, Baguley D, Hufton E, Khan F, Hall I, Stewart I, Fabbri L, Wright L, Kitterick P, Morriss R, Johnson S, Bates A, Antoniades C, Clark D, Bhui K, Channon KM, Motohashi K, Sigfrid L, Husain M, Webster M, Fu X, Li X, Kingham L, Klenerman P, Miiler K, Carson G, Simons G, Huneke N, Calder PC, Baldwin D, Bain S, Lasserson D, Daines L, Bright E, Stern M, Crisp P, Dharmagunawardena R, Reddington A, Wight A, Bailey L, Ashish A, Robinson E, Cooper J, Broadley A, Turnbull A, Brookes C, Sarginson C, Ionita D, Redfearn H, Elliott K, Barman L, Griffiths L, Guy Z, Gill R, Nathu R, Harris E, Moss P, Finnigan J, Saunders K, Saunders P, Kon S, Kon SS, O'Brien L, Shah K, Shah P, Richardson E, Brown V, Brown M, Brown J, Brown J, Brown A, Brown A, Brown M, Choudhury N, Jones S, Jones H, Jones L, Jones I, Jones G, Jones H, Jones D, Davies F, Davies E, Davies K, Davies G, Davies GA, Howard K, Porter J, Rowland J, Rowland A, Scott K, Singh S, Singh C, Thomas S, Thomas C, Lewis V, Lewis J, Lewis D, Harrison P, Francis C, Francis R, Hughes RA, Hughes J, Hughes AD, Thompson T, Kelly S, Smith D, Smith N, Smith A, Smith J, Smith L, Smith S, Evans T, Evans RI, Evans D, Evans R, Evans H, Evans J. 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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Martin CA, Nazareth J, Jarkhi A, Pan D, Das M, Logan N, Scott S, Bryant L, Abeywickrama N, Adeoye O, Ahmed A, Asif A, Bandi S, George N, Gohar M, Gray LJ, Kaszuba R, Mangwani J, Martin M, Moorthy A, Renals V, Teece L, Vail D, Khunti K, Moss P, Tattersall A, Hallis B, Otter AD, Rowe C, Willett BJ, Haldar P, Cooper A, Pareek M. Ethnic differences in cellular and humoral immune responses to SARS-CoV-2 vaccination in UK healthcare workers: a cross-sectional analysis. EClinicalMedicine 2023; 58:101926. [PMID: 37034357 PMCID: PMC10071048 DOI: 10.1016/j.eclinm.2023.101926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 04/07/2023] Open
Abstract
Background Few studies have compared SARS-CoV-2 vaccine immunogenicity by ethnic group. We sought to establish whether cellular and humoral immune responses to SARS-CoV-2 vaccination differ according to ethnicity in UK Healthcare workers (HCWs). Methods In this cross-sectional analysis, we used baseline data from two immunological cohort studies conducted in HCWs in Leicester, UK. Blood samples were collected between March 3, and September 16, 2021. We excluded HCW who had not received two doses of SARS-CoV-2 vaccine at the time of sampling and those who had serological evidence of previous SARS-CoV-2 infection. Outcome measures were SARS-CoV-2 spike-specific total antibody titre, neutralising antibody titre and ELISpot count. We compared our outcome measures by ethnic group using univariable (t tests and rank-sum tests depending on distribution) and multivariable (linear regression for antibody titres and negative binomial regression for ELISpot counts) tests. Multivariable analyses were adjusted for age, sex, vaccine type, length of interval between vaccine doses and time between vaccine administration and sample collection and expressed as adjusted geometric mean ratios (aGMRs) or adjusted incidence rate ratios (aIRRs). To assess differences in the early immune response to vaccination we also conducted analyses in a subcohort who provided samples between 14 and 50 days after their second dose of vaccine. Findings The total number of HCWs in each analysis were 401 for anti-spike antibody titres, 345 for neutralising antibody titres and 191 for ELISpot. Overall, 25.4% (19.7% South Asian and 5.7% Black/Mixed/Other) were from ethnic minority groups. In analyses including the whole cohort, neutralising antibody titres were higher in South Asian HCWs than White HCWs (aGMR 1.47, 95% CI [1.06-2.06], P = 0.02) as were T cell responses to SARS-CoV-2 S1 peptides (aIRR 1.75, 95% CI [1.05-2.89], P = 0.03). In a subcohort sampled between 14 and 50 days after second vaccine dose, SARS-CoV-2 spike-specific antibody and neutralising antibody geometric mean titre (GMT) was higher in South Asian HCWs compared to White HCWs (9616 binding antibody units (BAU)/ml, 95% CI [7178-12,852] vs 5888 BAU/ml [5023-6902], P = 0.008 and 2851 95% CI [1811-4487] vs 1199 [984-1462], P < 0.001 respectively), increments which persisted after adjustment (aGMR 1.26, 95% CI [1.01-1.58], P = 0.04 and aGMR 2.01, 95% CI [1.34-3.01], P = 0.001). SARS-CoV-2 ELISpot responses to S1 and whole spike peptides (S1 + S2 response) were higher in HCWs from South Asian ethnic groups than those from White groups (S1: aIRR 2.33, 95% CI [1.09-4.94], P = 0.03; spike: aIRR, 2.04, 95% CI [1.02-4.08]). Interpretation This study provides evidence that, in an infection naïve cohort, humoral and cellular immune responses to SARS-CoV-2 vaccination are stronger in South Asian HCWs than White HCWs. These differences are most clearly seen in the early period following vaccination. Further research is required to understand the underlying mechanisms, whether differences persist with further exposure to vaccine or virus, and the potential impact on vaccine effectiveness. Funding DIRECT and BELIEVE have received funding from UK Research and Innovation (UKRI) through the COVID-19 National Core Studies Immunity (NCSi) programme (MC_PC_20060).
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Affiliation(s)
- Christopher A. Martin
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Joshua Nazareth
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Amar Jarkhi
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Daniel Pan
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, UK
- Li Ka Shing Centre for Health Information and Discovery, Oxford Big Data Institute, University of Oxford, UK
| | - Mrinal Das
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Nicola Logan
- University of Glasgow Centre for Virus Research, University of Glasgow, Bearsden Road, Glasgow, UK
| | - Sam Scott
- University of Glasgow Centre for Virus Research, University of Glasgow, Bearsden Road, Glasgow, UK
| | - Luke Bryant
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, UK
| | | | - Oluwatobi Adeoye
- Leicester Medical School, University of Leicester, Leicester, UK
| | - Aleem Ahmed
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Aqua Asif
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Srini Bandi
- Department of Paediatrics, Leicester Royal Infirmary, Leicester, UK
| | - Nisha George
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Marjan Gohar
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Laura J. Gray
- Biostatistics Research Group, Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Ross Kaszuba
- Leicester Medical School, University of Leicester, Leicester, UK
| | - Jitendra Mangwani
- Academic Team of Musculoskeletal Surgery, University Hospitals of Leicester NHS Trust, Leicester General Hospital, Leicester, UK
| | - Marianne Martin
- Children's Intensive Care Unit, Leicester Children's Hospital, Leicester, UK
| | - Arumugam Moorthy
- Department of Rheumatology, University Hospitals of Leicester NHS Trust, Leicester, UK
- College of Life Sciences, University of Leicester, Leicester, UK
| | - Valerie Renals
- Research Space, University Hospitals of Leicester NHS Trust, UK
| | - Lucy Teece
- Biostatistics Research Group, Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Denny Vail
- Research Space, University Hospitals of Leicester NHS Trust, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, University of Leicester, Leicester, UK
| | - Paul Moss
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | | | - Bassam Hallis
- UK Health Security Agency, Porton Down, Salisbury, UK
| | | | - Cathy Rowe
- UK Health Security Agency, Porton Down, Salisbury, UK
| | - Brian J. Willett
- University of Glasgow Centre for Virus Research, University of Glasgow, Bearsden Road, Glasgow, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, UK
| | - Andrea Cooper
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Leicester, 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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Kim JW, Vella C, Parvez W, Verma R, Majid M, Woltmann G, Pareek M, Bennett J, Agrawal S, Sudhir R, Ahyow L, Tufail M, Haldar P. Impact of COVID-19 on the diagnosis and management of lung cancer and TB. Int J Tuberc Lung Dis 2022; 26:372-374. [PMID: 35351244 DOI: 10.5588/ijtld.22.0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- J W Kim
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - C Vella
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - W Parvez
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - R Verma
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - M Majid
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - G Woltmann
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - M Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester
| | - J Bennett
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - S Agrawal
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - R Sudhir
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - L Ahyow
- UK Health Security Agency, London, UK
| | - M Tufail
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - P Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
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Martin CA, Pan D, Hills G, Modha D, Patel P, Gray LJ, Jenkins DR, Barton L, Jones W, Brunskill NJ, Haldar P, Khunti K, Pareek M. Predictors of adverse outcome in the first and second waves of the COVID-19 pandemic: results from a UK centre. Ther Adv Infect Dis 2022; 9:20499361221074569. [PMID: 35127082 PMCID: PMC8808029 DOI: 10.1177/20499361221074569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/31/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND/AIMS Data concerning differences in demographics/disease severity between the first and second waves of COVID-19 are limited. We aimed to examine prognosis in patients presenting to hospital with COVID-19 amongst different ethnic groups between the first and second waves in the UK. METHODS In this retrospective cohort study, we included 1763 patients presenting to a regional hospital centre in Leicester (UK) and compared those in the first (n = 956) and second (n = 807) waves. Admission National Early Warning Scores, mechanical ventilation and mortality rate were lower in the second wave compared with the first. RESULTS Thirty-day mortality risk in second wave patients was approximately half that of first wave patients [adjusted hazard ratio (aHR) 0.55, 95% confidence interval (CI) 0.40-0.75]. In the second wave, Black patients were at higher risk of 30-day mortality than White patients (4.73, 1.56-14.3). CONCLUSION We found that disporportionately higher risks of death in patients from ethnic minority groups were not equivalent across consecutive waves of the pandemic. This suggests that risk factors for death in those from ethnic minority groups are malleable and potentially reversible. Our findings need urgent investigation in larger studies.
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Affiliation(s)
- Christopher A. Martin
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Daniel Pan
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - George Hills
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Deborah Modha
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Prashanth Patel
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- Department of Chemical Pathology and Metabolic Diseases, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Laura J. Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - David R. Jenkins
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Linda Barton
- Department of Haematology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - William Jones
- Business Intelligence Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Nigel J. Brunskill
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- Department of Nephrology, Leicester General Hospital, Leicester, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Kamlesh Khunti
- NIHR Leicester Biomedical Research Centre, Leicester, East Midlands, LE5 4PW, UK
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Applied Research Collaboration-East Midlands, Leicester, UK
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Applied Research Collaboration-East Midlands, Leicester, UK
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Koshal SS, Ray A, Mehra R, Kaur A, Quadri SF, Agarwal P, Kapur S, Debroy A, Haldar P. Partnering for rotavirus vaccine introduction in India: A retrospective analysis. Vaccine 2021; 39:6470-6476. [PMID: 34538521 DOI: 10.1016/j.vaccine.2021.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND The pre-existing partner network created in India for the delivery of polio vaccines was initially used to eradicate polio and later on embedded in the health systems network to promote routine immunization and other health interventions efficiently. The experience from this network offered lessons for strengthening the health care systems and provided a well-established network that could be utilized for other vaccine initiatives. It has also been established that successful partnerships between a broad range of stakeholders provide support, strengthen the health system, and accelerate vaccine innovation, introduction, access, logistics, and communication support. However, beyond polio eradication, there have not been too many documented success stories of vaccine introduction, which could be replicated in other new vaccine introductions and allied health initiatives. The authors have reviewed the successful and time-bound introduction of rotavirus vaccine (RVV) in India in the present article. METHODS The review was conducted based on a partnership framework which analysed multiple factors-partnership prerequisites, partnership model, partnership process, and partnership performance, thereby providing a comprehensive insight into the successful utilization of partnership networks for rotavirus vaccine introduction under the Universal Immunization Program in India. RESULTS & CONCLUSION The review also highlights the role of a lead agency in creating a fertile ground for lush, efficient, and effective partnerships amongst different stakeholders. The already existing RVV partnership framework reviewed by the authors can be successfully utilized for future new vaccine introductions.
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Affiliation(s)
| | - A Ray
- Bill and Melinda Gates Foundation, New Delhi, India
| | - R Mehra
- John Snow India, New Delhi, India
| | - A Kaur
- John Snow India, New Delhi, India
| | | | | | - S Kapur
- John Snow India, New Delhi, India
| | - A Debroy
- John Snow India, New Delhi, India
| | - P Haldar
- Ministry of Health and Family Welfare, New Delhi, India
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Martin CA, Jenkins DR, Patel P, Goss C, Price A, Barton L, Gupta P, Zaccardi F, Brunskill NJ, Haldar P, Khunti K, Pareek M. No cases of asymptomatic SARS-CoV-2 infection among healthcare staff in a city under lockdown restrictions: lessons to inform 'Operation Moonshot'. J Public Health (Oxf) 2020; 44:255-258. [PMID: 33367759 PMCID: PMC7798961 DOI: 10.1093/pubmed/fdaa237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/11/2020] [Accepted: 11/22/2020] [Indexed: 12/15/2022] Open
Abstract
Background Leicester was the first city in the UK to have ‘local lockdown’ measures imposed in response to high community rates of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission. As part of this response, a directive was issued by NHS England to offer testing of asymptomatic healthcare workers (HCWs) at University Hospitals of Leicester NHS Trust (UHL) for SARS-CoV-2 infection. Methods Between 20 July and 14 August 2020, we invited all HCWs at UHL to attend for SARS-CoV-2 testing by nucleic acid amplification (NAAT). We combined the result of this assay with demographic information from the electronic staff record. Results A total of 1150 staff (~8% of the workforce) volunteered. The median age was 46 years (IQR 34–55), 972 (84.5%) were female; 234 (20.4%) were of South Asian and 58 (5.0%) of Black ethnicity; 564 (49.0%) were nurses/healthcare assistants. We found no cases of asymptomatic infection. In comparison, average community test positivity rate in Leicester city was 2.6%. Conclusions Within the context of local lockdowns due to high community transmission rates, voluntary testing of asymptomatic staff has low uptake and low yield and thus its premise and cost-effectiveness should be re-considered.
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Affiliation(s)
- Christopher A Martin
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK.,Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - David R Jenkins
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - Prashanth Patel
- Department of Chemical Pathology and Metabolic Diseases, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK.,Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, UK
| | - Charles Goss
- Department of Occupational Health, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - Arthur Price
- Department of Immunology, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - Linda Barton
- Department of Haematology, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - Pankaj Gupta
- Department of Chemical Pathology and Metabolic Diseases, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK.,Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, UK
| | - Francesco Zaccardi
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester LE5 4PW, UK.,Leicester Real World Evidence Unit, Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester LE5 4PW, UK
| | - Nigel J Brunskill
- Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, UK.,Department of Nephrology, Leicester General Hospital, Leicester LE5 4PW, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK.,Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester LE3 9QP, UK.,NIHR Leicester Biomedical Research Centre, Leicester LE3 9QP, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester LE5 4PW, UK.,NIHR Leicester Biomedical Research Centre, Leicester LE3 9QP, UK.,NIHR Applied Research Collaboration-East Midlands, Leicester LE5 4PW, UK
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK.,Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK.,NIHR Leicester Biomedical Research Centre, Leicester LE3 9QP, UK.,NIHR Applied Research Collaboration-East Midlands, Leicester LE5 4PW, UK
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8
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Martin CA, Jenkins DR, Minhas JS, Gray LJ, Tang J, Williams C, Sze S, Pan D, Jones W, Verma R, Knapp S, Major R, Davies M, Brunskill N, Wiselka M, Brightling C, Khunti K, Haldar P, Pareek M. Socio-demographic heterogeneity in the prevalence of COVID-19 during lockdown is associated with ethnicity and household size: Results from an observational cohort study. EClinicalMedicine 2020; 25:100466. [PMID: 32840492 DOI: 10.1016/j.eclinm.2020.10046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Accumulating evidence indicates that COVID-19 causes adverse outcomes in ethnic minority groups. However, little is known about the impact of ethnicity and household size on acquiring infection with SARS-CoV-2. METHODS We undertook a retrospective cohort study, in Leicester (UK), of all individuals assessed for COVID-19 with polymerase chain reaction (PCR) testing at University Hospitals of Leicester NHS Trust between 1st March and 28th April 2020. We used logistic regression to identify sociodemographic, clinical and temporal factors associated with SARS-CoV-2 PCR positivity before/after lockdown. FINDINGS 971/4051 (24.0%) patients with suspected COVID-19 were found to be PCR positive for SARS-CoV-2. PCR positivity was more common amongst individuals from ethnic minortiy backgrounds than their White counterparts (White 20.0%, South Asian 37.5%, Black 36.1%, Other 32.2%; p<0.001 for all ethnic minority groups vs White). After adjustment, compared to White ethnicity, South Asian (aOR 2.44 95%CI 2.01, 2.97), Black (aOR 2.56 95%CI 1.71, 3.84) and Other (aOR 2.53 95%CI 1.74, 3.70) ethnicities were more likely to test positive, as were those with a larger estimated household size (aOR 1.06 95%CI 1.02, 1.11). We saw increasing proportions of positive tests in the three weeks post-lockdown amongst the ethnic minority , but not the White, cohort. Estimated household size was associated with PCR positivity after, but not before, lockdown (aOR 1.10 95%CI 1.03, 1.16). INTERPRETATION In individuals presenting with suspected COVID-19, those from ethnic minority communities and larger households had an increased likelihood of SARS-CoV-2 PCR positivity. Pandemic control measures may have more rapid impact on slowing viral transmission amongst those of White ethnicity compared to ethnic minority groups, Research is urgently required to understand the mechanisms underlying these disparities and whether public health interventions have differential effects on individuals from ethnic minority groups. FUNDING 10.13039/100006662 NIHR.
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Affiliation(s)
- Christopher A Martin
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - David R Jenkins
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Laura J Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Julian Tang
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Caroline Williams
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Shirley Sze
- Department of Cardiovascular Sciences, University of Leicester, UK
| | - Daniel Pan
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - William Jones
- Business Intelligence Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Raman Verma
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Scott Knapp
- Department of Emergency Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Rupert Major
- Department of Health Sciences, University of Leicester, Leicester, UK
- John Walls Renal Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Melanie Davies
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Nigel Brunskill
- Department of Cardiovascular Sciences, University of Leicester, UK
- John Walls Renal Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Martin Wiselka
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Chris Brightling
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
- NIHR Applied Research Collaboration-East Midlands, Leicester, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
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9
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Martin CA, Jenkins DR, Minhas JS, Gray LJ, Tang J, Williams C, Sze S, Pan D, Jones W, Verma R, Knapp S, Major R, Davies M, Brunskill N, Wiselka M, Brightling C, Khunti K, Haldar P, Pareek M. Socio-demographic heterogeneity in the prevalence of COVID-19 during lockdown is associated with ethnicity and household size: Results from an observational cohort study. EClinicalMedicine 2020; 25:100466. [PMID: 32840492 PMCID: PMC7366113 DOI: 10.1016/j.eclinm.2020.100466] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Accumulating evidence indicates that COVID-19 causes adverse outcomes in ethnic minority groups. However, little is known about the impact of ethnicity and household size on acquiring infection with SARS-CoV-2. METHODS We undertook a retrospective cohort study, in Leicester (UK), of all individuals assessed for COVID-19 with polymerase chain reaction (PCR) testing at University Hospitals of Leicester NHS Trust between 1st March and 28th April 2020. We used logistic regression to identify sociodemographic, clinical and temporal factors associated with SARS-CoV-2 PCR positivity before/after lockdown. FINDINGS 971/4051 (24.0%) patients with suspected COVID-19 were found to be PCR positive for SARS-CoV-2. PCR positivity was more common amongst individuals from ethnic minortiy backgrounds than their White counterparts (White 20.0%, South Asian 37.5%, Black 36.1%, Other 32.2%; p<0.001 for all ethnic minority groups vs White). After adjustment, compared to White ethnicity, South Asian (aOR 2.44 95%CI 2.01, 2.97), Black (aOR 2.56 95%CI 1.71, 3.84) and Other (aOR 2.53 95%CI 1.74, 3.70) ethnicities were more likely to test positive, as were those with a larger estimated household size (aOR 1.06 95%CI 1.02, 1.11). We saw increasing proportions of positive tests in the three weeks post-lockdown amongst the ethnic minority , but not the White, cohort. Estimated household size was associated with PCR positivity after, but not before, lockdown (aOR 1.10 95%CI 1.03, 1.16). INTERPRETATION In individuals presenting with suspected COVID-19, those from ethnic minority communities and larger households had an increased likelihood of SARS-CoV-2 PCR positivity. Pandemic control measures may have more rapid impact on slowing viral transmission amongst those of White ethnicity compared to ethnic minority groups, Research is urgently required to understand the mechanisms underlying these disparities and whether public health interventions have differential effects on individuals from ethnic minority groups. FUNDING 10.13039/100006662 NIHR.
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Affiliation(s)
- Christopher A. Martin
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - David R. Jenkins
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Laura J. Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Julian Tang
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Caroline Williams
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Shirley Sze
- Department of Cardiovascular Sciences, University of Leicester, UK
| | - Daniel Pan
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - William Jones
- Business Intelligence Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Raman Verma
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Scott Knapp
- Department of Emergency Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Rupert Major
- Department of Health Sciences, University of Leicester, Leicester, UK
- John Walls Renal Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Melanie Davies
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Nigel Brunskill
- Department of Cardiovascular Sciences, University of Leicester, UK
- John Walls Renal Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Martin Wiselka
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Chris Brightling
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
- NIHR Applied Research Collaboration-East Midlands, Leicester, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Leicester COVID-19 consortium
- Department of Respiratory Sciences, University of Leicester, UK
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
- Department of Cardiovascular Sciences, University of Leicester, UK
- Department of Health Sciences, University of Leicester, Leicester, UK
- Business Intelligence Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- Department of Emergency Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
- John Walls Renal Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
- NIHR Applied Research Collaboration-East Midlands, Leicester, UK
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10
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Nazareth J, Minhas JS, Jenkins DR, Sahota A, Khunti K, Haldar P, Pareek M. Early lessons from a second COVID-19 lockdown in Leicester, UK. Lancet 2020; 396:e4-e5. [PMID: 32622374 PMCID: PMC7330565 DOI: 10.1016/s0140-6736(20)31490-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 12/03/2022]
Affiliation(s)
- Joshua Nazareth
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK; Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Jatinder S Minhas
- Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, UK
| | - David R Jenkins
- Department of Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Amandip Sahota
- Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester LE1 7RH, UK; NIHR Leicester Biomedical Research Centre, Leicester, UK; NIHR Applied Research Collaboration-East Midlands, Leicester, UK
| | - Pranab Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK; Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK; NIHR Leicester Biomedical Research Centre, Leicester, UK.
| | - Manish Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester LE1 7RH, UK; Department of Infection and HIV Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK; Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK.
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11
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Gupta RK, Lipman M, Jackson C, Sitch AJ, Southern J, Drobniewski F, Deeks JJ, Tsou CY, Griffiths C, Davidson J, Campbell C, Stirrup O, Noursadeghi M, Kunst H, Haldar P, Lalvani A, Abubakar I. Quantitative IFN-γ Release Assay and Tuberculin Skin Test Results to Predict Incident Tuberculosis. A Prospective Cohort Study. Am J Respir Crit Care Med 2020; 201:984-991. [PMID: 31825645 DOI: 10.1164/rccm.201905-0969oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Rationale: Development of diagnostic tools with improved predictive value for tuberculosis (TB) is a global research priority.Objectives: We evaluated whether implementing higher diagnostic thresholds than currently recommended for QuantiFERON Gold-in-Tube (QFT-GIT), T-SPOT.TB, and the tuberculin skin test (TST) might improve prediction of incident TB.Methods: Follow-up of a UK cohort of 9,610 adult TB contacts and recent migrants was extended by relinkage to national TB surveillance records (median follow-up 4.7 yr). Incidence rates and rate ratios, sensitivities, specificities, and predictive values for incident TB were calculated according to ordinal strata for quantitative results of QFT-GIT, T-SPOT.TB, and TST (with adjustment for prior bacillus Calmette-Guérin [BCG] vaccination).Measurements and Main Results: For all tests, incidence rates and rate ratios increased with the magnitude of the test result (P < 0.0001). Over 3 years' follow-up, there was a modest increase in positive predictive value with the higher thresholds (3.0% for QFT-GIT ≥0.35 IU/ml vs. 3.6% for ≥4.00 IU/ml; 3.4% for T-SPOT.TB ≥5 spots vs. 5.0% for ≥50 spots; and 3.1% for BCG-adjusted TST ≥5 mm vs. 4.3% for ≥15 mm). As thresholds increased, sensitivity to detect incident TB waned for all tests (61.0% for QFT-GIT ≥0.35 IU/ml vs. 23.2% for ≥4.00 IU/ml; 65.4% for T-SPOT.TB ≥5 spots vs. 27.2% for ≥50 spots; 69.7% for BCG-adjusted TST ≥5 mm vs. 28.1% for ≥15 mm).Conclusions: Implementation of higher thresholds for QFT-GIT, T-SPOT.TB, and TST modestly increases positive predictive value for incident TB, but markedly reduces sensitivity. Novel biomarkers or validated multivariable risk algorithms are required to improve prediction of incident TB.
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Affiliation(s)
| | - Marc Lipman
- UCL-TB.,UCL Respiratory, and.,Royal Free London National Health Service (NHS) Foundation Trust, London, United Kingdom
| | | | - Alice J Sitch
- National Institute for Health Research Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, United Kingdom.,Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
| | - Jo Southern
- Tuberculosis Unit, Public Health England, Colindale, London, United Kingdom
| | | | - Jonathan J Deeks
- National Institute for Health Research Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, United Kingdom.,Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
| | - Chuen-Yan Tsou
- Tuberculosis Unit, Public Health England, Colindale, London, United Kingdom
| | | | - Jennifer Davidson
- Tuberculosis Unit, Public Health England, Colindale, London, United Kingdom
| | - Colin Campbell
- Tuberculosis Unit, Public Health England, Colindale, London, United Kingdom
| | | | - Mahdad Noursadeghi
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Heinke Kunst
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Department of Respiratory Medicine, Barts Health NHS Trust, London, United Kingdom; and
| | - Pranab Haldar
- Respiratory Biomedical Research Centre, Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Ajit Lalvani
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College, London, United Kingdom
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12
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Gupta R, Lipman M, Jackson C, Sitch A, Southern J, Drobniewski F, Deeks J, Tsou CY, Griffiths C, Davidson J, Campbell C, Stirrup O, Noursadeghi M, Kunst H, Haldar P, Lalvani A, Abubakar I. Do higher quantitative interferon gamma release assay or tuberculin skin test results help to predict incident tuberculosis? Data from the UK PREDICT study. Tuberculosis (Edinb) 2019. [DOI: 10.1183/13993003.congress-2019.oa3822] [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: 11/05/2022]
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13
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Abubakar I, Drobniewski F, Southern J, Sitch AJ, Jackson C, Lipman M, Deeks JJ, Griffiths C, Bothamley G, Lynn W, Burgess H, Mann B, Imran A, Sridhar S, Tsou CY, Nikolayevskyy V, Rees-Roberts M, Whitworth H, Kon OM, Haldar P, Kunst H, Anderson S, Hayward A, Watson JM, Milburn H, Lalvani A. Prognostic value of interferon-γ release assays and tuberculin skin test in predicting the development of active tuberculosis (UK PREDICT TB): a prospective cohort study. Lancet Infect Dis 2018; 18:1077-1087. [PMID: 30174209 PMCID: PMC6192014 DOI: 10.1016/s1473-3099(18)30355-4] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/27/2018] [Accepted: 05/25/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Tackling tuberculosis requires testing and treatment of latent tuberculosis in high-risk groups. The aim of this study was to estimate the predictive values of the tuberculin skin test (TST) and two interferon-γ release assays (IGRAs) for the development of active tuberculosis in high-risk groups-ie, people in recent contact with active tuberculosis cases and from high-burden countries. METHOD In this prospective cohort study, we recruited participants from 54 centres (eg, clinics, community settings) in London, Birmingham, and Leicester in the UK. Participants were eligible if they were aged 16 years or older and at high risk for latent tuberculosis infection (ie, recent contact with someone with active tuberculosis [contacts] or a migrant who had arrived in the UK in the past 5 years from-or who frequently travelled to-a country with a high burden of tuberculosis [migrants]). Exclusion criteria included prevalent cases of tuberculosis, and participants who were treated for latent tuberculosis after a positive test result in this study. Each participant received three tests (QuantiFERON-TB Gold-In Tube, T-SPOT.TB, and a Mantoux TST). A positive TST result was reported using three thresholds: 5 mm (TST-5), 10 mm (TST-10), and greater than 5 mm in BCG-naive or 15 mm in BCG-vaccinated (TST-15) participants. Participants were followed up from recruitment to development of tuberculosis or censoring. Incident tuberculosis cases were identified by national tuberculosis databases, telephone interview, and review of medical notes. Our primary objective was to estimate the prognostic value of IGRAs compared with TST, assessed by the ratio of incidence rate ratios and predictive values for tuberculosis development. The study was registered with ClinicalTrials.gov, NCT01162265, and is now complete. FINDINGS Between May 4, 2010, and June 1, 2015, 10 045 people were recruited, of whom 9610 were eligible for inclusion. Of this cohort, 4861 (50·6%) were contacts and 4749 (49·4%) were migrants. Participants were followed up for a median of 2·9 years (range 21 days to 5·9 years). 97 (1·0%) of 9610 participants developed active tuberculosis (77 [1·2%] of 6380 with results for all three tests). In all tests, annual incidence of tuberculosis was very low in those who tested negatively (ranging from 1·2 per 1000 person-years, 95% CI 0·6-2·0 for TST-5 to 1·9 per 1000 person-years, 95% CI 1·3-2·7, for QuantiFERON-TB Gold In-Tube). Annual incidence in participants who tested positively were highest for T-SPOT.TB (13·2 per 1000 person-years, 95% CI 9·9-17·4), TST-15 (11·1 per 1000 person-years, 8·3-14·6), and QuantiFERON-TB Gold In-Tube (10·1 per 1000 person-years, 7·4-13·4). Positive results for these tests were significantly better predictors of progression than TST-10 and TST-5 (eg, ratio of test positivity rates in those progressing to tuberculosis compared with those not progressing T-SPOT.TB vs TST-5: 1·99, 95% CI 1·68-2·34; p<0·0001). However, TST-5 identified a higher proportion of participants who progressed to active tuberculosis (64 [83%] of 77 tested) than all other tests and TST thresholds (≤75%). INTERPRETATION IGRA-based or BCG-stratified TST strategies appear most suited to screening for potential disease progression among high-risk groups. Further work will be needed to assess country-specific cost-effectiveness of each screening test, and in the absence of highly specific diagnostic tests, cheap non-toxic treatments need to be developed that could be given to larger groups of people at potential risk. FUNDING National Institute for Health Research Health Technology Assessment Programme 08-68-01.
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Affiliation(s)
- Ibrahim Abubakar
- UCL Institute for Global Health, University College London, London, UK.
| | - Francis Drobniewski
- Section of Infectious Diseases and Immunity, Imperial College London, London, UK
| | | | - Alice J Sitch
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Charlotte Jackson
- UCL Institute for Global Health, University College London, London, UK
| | - Marc Lipman
- Department of Medicine, University College London, London, UK
| | - Jonathan J Deeks
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Chris Griffiths
- Blizard Institute, Queen Mary University of London, London, UK
| | - Graham Bothamley
- Department of Respiratory Medicine, Homerton University Hospital, London, UK
| | - William Lynn
- Department of Infectious Diseases and Tropical Medicine, Ealing Hospital, London, UK
| | - Helen Burgess
- Department of Medicine, West Middlesex Hospital, London, UK
| | - Bobby Mann
- Department of Medicine, West Middlesex Hospital, London, UK
| | - Ambreen Imran
- UCL Institute for Global Health, University College London, London, UK
| | - Saranya Sridhar
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | | | | | - Melanie Rees-Roberts
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Hilary Whitworth
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Onn Min Kon
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College London, London, UK
| | - Pranab Haldar
- Respiratory Biomedical Research Centre, Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
| | - Heinke Kunst
- Blizard Institute, Queen Mary University of London, London, UK
| | | | - Andrew Hayward
- Institute of Epidemiology and Healthcare, University College London, London, UK
| | | | - Heather Milburn
- Respiratory Medicine Department, Guy's and St Thomas' Hospital, London, UK
| | - Ajit Lalvani
- Tuberculosis Research Centre, National Heart and Lung Institute, Imperial College London, London, UK
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14
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Sousa AR, Marshall RP, Warnock LC, Bolton S, Hastie A, Symon F, Hargadon B, Marshall H, Richardson M, Brightling CE, Haldar P, Milone R, Chalk P, Williamson R, Panettieri R, Knowles R, Bleecker ER, Wardlaw AJ. Responsiveness to oral prednisolone in severe asthma is related to the degree of eosinophilic airway inflammation. Clin Exp Allergy 2017; 47:890-899. [PMID: 28493293 DOI: 10.1111/cea.12954] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 03/31/2017] [Accepted: 04/27/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Patients with severe asthma appear relatively corticosteroid resistant. Corticosteroid responsiveness is closely related to the degree of eosinophilic airway inflammation. The extent to which eosinophilic airway inflammation in severe asthma responds to treatment with systemic corticosteroids is not clear. OBJECTIVE To relate the physiological and inflammatory response to systemic corticosteroids in asthma to disease severity and the baseline extent of eosinophilic inflammation. METHODS Patients with mild/moderate and severe asthma were investigated before and after 2 weeks of oral prednisolone (Clintrials.gov NCT00331058 and NCT00327197). We pooled the results from two studies with common protocols. The US study contained two independent centres and the UK one independent centre. The effect of oral corticosteroids on FEV1 , Pc20, airway inflammation and serum cytokines was investigated. Baseline measurements were compared with healthy subjects. RESULTS Thirty-two mild/moderate asthmatics, 50 severe asthmatics and 35 healthy subjects took part. At baseline, both groups of asthmatics had a lower FEV1 and Pc20 and increased eosinophilic inflammation compared to healthy subjects. The severe group had a lower FEV1 and more eosinophilic inflammation compared to mild/moderate asthmatics. Oral prednisolone caused a similar degree of suppression of eosinophilic inflammation in all compartments in both groups of asthmatics. There were small improvements in FEV1 and Pc20 for both mild/ moderate and severe asthmatics with a correlation between the baseline eosinophilic inflammation and the change in FEV1 . There was a ~50% reduction in the serum concentration of CXCL10 (IP-10), CCL22 (MDC), CCL17 (TARC), CCL-2 (MCP-1) and CCL-13 (MCP-4) in both asthma groups after oral corticosteroids. CONCLUSIONS AND CLINICAL RELEVANCE Disease severity does not influence the response to systemic corticosteroids. The study does not therefore support the concept that severe asthma is associated with corticosteroid resistance. Only baseline eosinophilic inflammation was associated with the physiological response to corticosteroids, confirming the importance of measuring eosinophilic inflammation to guide corticosteroid use.
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Affiliation(s)
- A R Sousa
- GlaxoSmithKline Stevenage, Stevenage, UK
| | | | | | - S Bolton
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - A Hastie
- Center for Genomics & Personalized Medicine, Section of Pulmonary & Critical Care Medicine, Wake Forest School of Medicine, Medical Center Blvd., Winston-Salem, NC, USA
| | - F Symon
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - B Hargadon
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - H Marshall
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - M Richardson
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - C E Brightling
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - P Haldar
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
| | - R Milone
- GlaxoSmithKline Stevenage, Stevenage, UK
| | - P Chalk
- Knowles Consulting, Stevenage, UK
| | | | - R Panettieri
- Rutgers, the State University of New Jersey, New Jersey, USA
| | | | - E R Bleecker
- Center for Genomics & Personalized Medicine, Section of Pulmonary & Critical Care Medicine, Wake Forest School of Medicine, Medical Center Blvd., Winston-Salem, NC, USA
| | - A J Wardlaw
- Institute for Lung Health, Department of Infection Immunity and Inflammation, University of Leicester, Respiratory Biomedical Research Unit University Hospitals of Leicester NHS Trust, Leicester, UK
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James BD, Greening NJ, Toms N, Woltmann G, Free RC, Haldar P, Steiner MC, Evans RA. P54 Can multi-morbid phenotypes be described in patients with advanced COPD using cluster analysis? Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.197] [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: 11/04/2022]
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Kim J, O'Connor B, Patel H, Perera N, Wiselka M, Woltmann G, Haldar P. S59 Evaluating The Clinical Utility Of Xpert(R) Mtb/rif For The Diagnosis And Management Of Tuberculosis In A High Burden Region Of The Uk. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.65] [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: 11/03/2022]
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Agbetile J, Bourne M, Fairs A, Hargadon B, Desai D, Broad C, Morley J, Bradding P, Brightling C, Green R, Haldar P, Pashley C, Pavord I, Wardlaw A. S90 Effectiveness of Voriconazole In the Treatment of Aspergillus fumigatus Associated Asthma. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.97] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Verma R, Patel H, Thuraisingam H, Woltmann G, Haldar P. S61 Serial IGRA testing to identify recently acquired LTBI in contacts of smear positive pulmonary tuberculosis. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.68] [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: 11/03/2022]
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Visweswara Rao K, Padmaja Reddy K, Haldar P. A Validated Chiral LC Method for Enantiomeric Separation of Nebivolol Stereoisomers in Bulk Drugs and Dosage Forms on Amylose-Based Stationary Phase. J Chromatogr Sci 2013; 52:1051-8. [DOI: 10.1093/chromsci/bmt158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Panchal RK, Woltmann G, Haldar P. P51 Reduced Effectiveness of the Primary-Care Registry For Targeted LTBI Screening of High Risk Immigrants with HIV Co-Infection. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.192] [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: 11/04/2022]
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Haldar P. Female sex worker typology: too complicated to be used pragmatically. Int J Epidemiol 2011; 40:1735-6; author reply 1737-8. [DOI: 10.1093/ije/dyr071] [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: 11/12/2022] Open
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Desai D, Newby CJ, Haldar P, Shah S, Gupta S, Bafadhel M, Singapuri A, Siddiqui S, Woods J, Herath A, Anderson IK, Bradding P, Green RH, Wardlaw AJ, Pavord ID, May RD, Brightling CE. S121 Mediator profiling of severe asthma phenotypes. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054b.121] [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: 11/04/2022]
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Panchal RK, Haldar P, Woltmann G. P55 TB risk after new immigrant GP registration: a retrospective cohort analysis. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054c.55] [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: 11/04/2022]
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Panchal RK, Haldar P, Woltmann G. P59 Differing patterns of new immigrant GP registration among ethnic subgroups determine the importance of additional strategies for models of new immigrant screening. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054c.59] [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: 11/04/2022]
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Panchal RK, Haldar P, Woltmann G. P58 Indices of TB risk can help stratify recent immigrants registering with a GP for targeted screening. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054c.58] [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: 11/03/2022]
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Barman G, Haldar P, Dutta N, Ray JK. NaBH4-I2 mediated chemoselective reduction of γ-lactam and thio-γ-lactam in presence of gem-dicarboxylates: An easy access to 1,3-diaryl pyrrolidines. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bafadhel M, McKenna S, Terry S, Mistry V, Reid C, Haldar P, McCormick M, Haldar K, Kebadze T, Duvoix A, Lindbald K, Rugman P, Dodson P, Jenkins M, Newbold P, Venge P, Green RH, Lomas DA, Barer MR, Johnston SL, Pavord ID, Brightling CE. T6 Acute exacerbations of chronic obstructive pulmonary disease: identification of phenotype-specific biomarkers and biological clusters. Thorax 2010. [DOI: 10.1136/thx.2010.150896.6] [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: 11/04/2022]
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Haldar P, Thuraisingam H, Patel H, Hoskyns W, Woltmann G. P166 Quantiferon testing in close contacts of smear positive pulmonary TB identifies people at low risk of secondary progression. Thorax 2010. [DOI: 10.1136/thx.2010.151043.17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gupta S, Siddiqui S, Haldar P, Entwisle JJ, Mawby D, Wardlaw AJ, Bradding P, Pavord ID, Green RH, Brightling CE. Quantitative analysis of high-resolution computed tomography scans in severe asthma subphenotypes. Thorax 2010; 65:775-81. [PMID: 20805170 PMCID: PMC2975950 DOI: 10.1136/thx.2010.136374] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Background Severe asthma is a heterogeneous condition. Airway remodelling is a feature of severe asthma and can be determined by the assessment of high-resolution computed tomography (HRCT) scans. The aim of this study was to assess whether airway remodelling is restricted to specific subphenotypes of severe asthma. Methods A retrospective analysis was performed of HRCT scans from subjects who had attended a single-centre severe asthma clinic between 2003 and 2008. The right upper lobe apical segmental bronchus (RB1) dimensions were measured and the clinical and sputum inflammatory characteristics associated with RB1 geometry were assessed by univariate and multivariate regression analyses. Longitudinal sputum data were available and were described as area under the time curve (AUC). Comparisons were made in RB1 geometry across subjects in four subphenotypes determined by cluster analysis, smokers and non-smokers, and subjects with and without persistent airflow obstruction. Results Ninety-nine subjects with severe asthma and 16 healthy controls were recruited. In the subjects with severe asthma the RB1 percentage wall area (%WA) was increased (p=0.009) and lumen area (LA)/body surface area (BSA) was decreased (p=0.008) compared with controls but was not different across the four subphenotypes. Airway geometry was not different between smokers and non-smokers and RB1 %WA was increased in those with persistent airflow obstruction. RB1 %WA in severe asthma was best associated with airflow limitation and persistent neutrophilic airway inflammation (model R2=0.27, p=0.001). Conclusions Airway remodelling of proximal airways occurs in severe asthma and is associated with impaired lung function and neutrophilic airway inflammation.
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Affiliation(s)
- Sumit Gupta
- Institute for Lung Health, Department of Infection, Inflammation and Immunity, University of Leicester, Leicester LE3 9QP, UK
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Thomas B, Rutman A, Hirst RA, Haldar P, Wardlaw AJ, Bankart J, Brightling CE, O'Callaghan C. Ciliary dysfunction and ultrastructural abnormalities are features of severe asthma. J Allergy Clin Immunol 2010; 126:722-729.e2. [PMID: 20673980 DOI: 10.1016/j.jaci.2010.05.046] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 04/20/2010] [Accepted: 05/21/2010] [Indexed: 11/17/2022]
Abstract
BACKGROUND Epithelial dysfunction has been implicated in asthma pathophysiology, but no studies have directly assessed ciliary function in asthma. OBJECTIVE To study the ciliary function and epithelial ultrastructure of patients with asthma and healthy controls. METHODS We studied ciliary beat frequency and beat pattern by using digital high-speed video imaging and ultrastructure by transmission electron microscopy of bronchial epithelial strips from 7 subjects with mild, 7 with moderate, and 19 with severe asthma and 9 healthy controls. RESULTS The median (interquartile range) ciliary beat frequency was decreased in moderate (6.5 [4.4-8.5] Hz) and severe asthma (6.7 [6.1-7.6] Hz) compared with controls (10.5 [9.7-11.8] Hz; P < .01). Dyskinesia and immotility indices were higher in severe asthma (65% [43%-75%]; 6.3% [1%-9.5%], respectively) compared with controls (4% [0%-6.7%; 0%, respectively; P < .01). These abnormalities were related to disease severity (ciliary beat frequency, r(s) = -0.68; dyskinesia index, r(s) = 0.86; immotility index, r(s) = 0.65; P < .0001). The ultrastructure of the epithelium was abnormal in severe asthma with a reduction in ciliated cells, an increase in dead cells, and ciliary disorientation compared with all other groups (P < .05). Compared with patients with mild asthma and healthy controls, patients with severe asthma showed increased ciliary depletion, microtubular defects, mitochondrial damage, and cytoplasmic blebbing (P < .01). All of these changes were related to disease severity. CONCLUSION Ciliary dysfunction and ultrastructural abnormalities are closely related to asthma severity. Ciliary dysfunction is a feature of moderate to severe asthma, and profound ultrastructural abnormalities are restricted to severe disease. Whether these changes contribute to the development of severe asthma phenotype remains to be determined.
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Affiliation(s)
- Biju Thomas
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
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Kulkarni NS, Hollins F, Sutcliffe A, Saunders R, Shah S, Siddiqui S, Gupta S, Haldar P, Green R, Pavord I, Wardlaw A, Brightling CE. Eosinophil protein in airway macrophages: a novel biomarker of eosinophilic inflammation in patients with asthma. J Allergy Clin Immunol 2010; 126:61-9.e3. [PMID: 20639010 DOI: 10.1016/j.jaci.2010.03.026] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 03/23/2010] [Accepted: 03/26/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND Noneosinophilic asthma is common across asthma severities. However, in patients with moderate-to-severe disease, the absence of sputum eosinophilia cannot distinguish between asthmatic subjects with eosinophilic inflammation controlled by corticosteroids versus those in whom eosinophilic inflammation is not a component of the disease. OBJECTIVES We sought to develop a method to quantify eosinophil proteins in airway macrophages as a novel biomarker of eosinophilic airway inflammation. METHODS Eosinophil proteins in airway macrophages were assessed by means of flow cytometry, immunofluorescence, and cytoplasmic hue change after ingestion of apoptotic eosinophils. Airway macrophage median percentage of red-hued area in stained sputum cytospin preparations was assessed by means of image analysis from (1) subjects with mild-to-severe asthma, subjects with nonasthmatic eosinophilic bronchitis, and healthy control subjects; (2) subjects with eosinophilic severe asthma after treatment with prednisolone; and (3) subject with noneosinophilic asthma before corticosteroid withdrawal. RESULTS Eosinophil proteins were detected in airway macrophages, and cytoplasmic red hue increased after ingestion of apoptotic eosinophils. Airway macrophage percentage redhued area was increased in subjects with moderate-to-severe asthma compared with that seen in subjects with mild asthma and healthy control subjects, was similar in those with or without a sputum eosinophilia, and was increased after corticosteroid therapy. In asthmatic subjects without sputum eosinophilia, the airway macrophage percentage red-hued area was increased in subjects who did versus those who did not have sputum eosinophilia after corticosteroid withdrawal. CONCLUSIONS Eosinophil proteins can be reliably measured in airway macrophages. In combination with sputum eosinophilia, the macrophage eosinophil protein content might further define the asthma phenotype and provide an additional tool to direct therapy.
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Affiliation(s)
- Neeta S Kulkarni
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom.,Children's Community Health Service, Leicester City NHS Primary Care Trust
| | - Fay Hollins
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Amanda Sutcliffe
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Ruth Saunders
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Sachil Shah
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Salman Siddiqui
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Sumit Gupta
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Pranab Haldar
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Ruth Green
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Ian Pavord
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Andrew Wardlaw
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
| | - Christopher E Brightling
- Institute for Lung Health, Glenfield Hospital, Leicester, and the Department of Infection, Immunity and Inflammation, University of Leicester, United Kingdom
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Ray JK, Haldar P, Canle L M, Fernández P MI, Santaballa JA. 1-(3-Chloro-4-fluoro-phen-yl)-5-(2-diazo-acet-yl)-4-phenyl-pyrrolidin-2-one. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2103. [PMID: 21588395 PMCID: PMC3007471 DOI: 10.1107/s1600536810024657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Accepted: 06/23/2010] [Indexed: 11/12/2022]
Abstract
In the title compound, C18H13ClFN3O2, the pyrrolidine ring adopts an envelope conformation and the planar part is rotated by 4.3 (6)° from the plane of the benzene ring and is almost perperdicular both to the diazoacetyl unit [dihedral angle = 78.93 (7)°] and the phenyl ring [dihedral angle = 86.07 (7)°]. In the crystal, molecules are linked into a three-dimensional framework by C—H⋯O interactions. The molecular conformation is stabilized by an intramolecular C—H⋯O hydrogen bond.
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Free C, Haldar P, Wilczynska M, Peake M, Agrawal S, Entwisle J, Bennett J. Comparison of CT and CT-PET for the pre-operative staging of non small cell lung cancer. Lung Cancer 2010. [DOI: 10.1016/s0169-5002(10)70043-x] [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]
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Free C, Haldar P, Medford A, Agrawal S, Bennett J. Histological evaluation of mediastinal pathology with EBUS-TBNA: The Leicester series. Lung Cancer 2010. [DOI: 10.1016/s0169-5002(10)70046-5] [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: 11/28/2022]
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Haldar P, Nasimudeen A, Medford A, Bennett J, Agrawal S. Endobronchial Ultrasound-guided Transbronchial Needle Aspiration (EBUS-TBNA) as a Diagnostic Tool for the Evaluation of Mediastinal Pathology: The Leicester Experience. IJUTPC 2010:49-53. [DOI: 10.5005/jp-journals-10014-1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
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Gupta S, Siddiqui S, Haldar P, Raj JV, Entwisle JJ, Wardlaw AJ, Bradding P, Pavord ID, Green RH, Brightling CE. Qualitative analysis of high-resolution CT scans in severe asthma. Chest 2009; 136:1521-1528. [PMID: 19542254 DOI: 10.1378/chest.09-0174] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND High-resolution CT (HRCT) scanning is part of the management of severe asthma, but its application varies between centers. We sought to describe the HRCT scan abnormalities of a large severe asthma cohort and to determine the utility of clinical features to direct the use of HRCT scanning in this group of patients. METHODS Subjects attending our Difficult Asthma Clinic (DAC) between February 2000 and November 2006 (n = 463) were extensively re-characterized and 185 underwent HRCT scan. The HRCT scans were analyzed qualitatively and the interobserver variability was assessed. Using logistic regression we defined clinical parameters that were associated with bronchiectasis (BE) and bronchial wall thickening (BWT) alone or in combination. RESULTS HRCT scan abnormalities were present in 80% of subjects and often coexisted with BWT (62%), BE (40%), and emphysema (8%). The interobserver agreement for BE (kappa = 0.76) and BWT (kappa = 0.63) was substantial. DAC patients who underwent HRCT scanning compared with those who did not were older, had longer disease duration, had poorer lung function, were receiving higher doses of corticosteroids, and had increased neutrophilic airway inflammation. The sensitivity and specificity of detecting BE clinically were 74% and 45%, respectively. FEV(1)/FVC ratio emerged as an important predictor for both BE and BWT but had poor discriminatory utility for subjects who did not have airway structural changes (FEV(1)/FVC ratio, >or= 75%; sensitivity, 67%; specificity, 65%). CONCLUSION HRCT scan abnormalities are common in patients with severe asthma. Nonradiologic assessments fail to reliably predict important bronchial wall changes; therefore, CT scan acquisition may be required in all patients with severe asthma.
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Affiliation(s)
- Sumit Gupta
- Institute for Lung Health, University of Leicester, Leicester, UK
| | - Salman Siddiqui
- Institute for Lung Health, University of Leicester, Leicester, UK
| | - Pranab Haldar
- Institute for Lung Health, University of Leicester, Leicester, UK
| | | | | | - Andrew J Wardlaw
- Institute for Lung Health, University of Leicester, Leicester, UK
| | - Peter Bradding
- Institute for Lung Health, University of Leicester, Leicester, UK
| | - Ian D Pavord
- Institute for Lung Health, University of Leicester, Leicester, UK
| | - Ruth H Green
- Institute for Lung Health, University of Leicester, Leicester, UK
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Siddiqui S, Gupta S, Cruse G, Haldar P, Entwisle J, Mcdonald S, Whithers PJ, Hainsworth SV, Coxson HO, Brightling C. Airway wall geometry in asthma and nonasthmatic eosinophilic bronchitis. Allergy 2009; 64:951-8. [PMID: 19210350 DOI: 10.1111/j.1398-9995.2009.01951.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [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: 11/27/2022]
Abstract
BACKGROUND Variable airflow obstruction and airway hyperresponsiveness (AHR) are features of asthma, which are absent in nonasthmatic eosinophilic bronchitis (EB). Airway remodelling is characteristic of both conditions suggesting that remodelling and airway dysfunction are disassociated, but whether the airway geometry differs between asthma and nonasthmatic EB is uncertain. METHODS We assessed airway geometry by computed tomography (CT) imaging in asthma vs EB. A total of 12 subjects with mild-moderate asthma, 14 subjects with refractory asthma, 10 subjects with EB and 11 healthy volunteers were recruited. Subjects had a narrow collimation (0.75 mm) CT scan from the aortic arch to the carina to capture the right upper lobe apical segmental bronchus (RB1). In subjects with asthma and EB, CT scans were performed before and after a 2-week course of oral prednisolone (0.5 mg/kg). RESULTS Mild-moderate and refractory asthma were associated with RB1 wall thickening in contrast to subjects with nonasthmatic EB who had maintained RB1 patency without wall thickening [mean (SD) % wall area and luminal area mild-t0-moderate asthma 67.7 (7.3)% and 6.6 (2.8) mm(2)/m(2), refractory asthma 67.3 (5.6)% and 6.7 (3.4) mm(2)/m(2), healthy control group 59.7 (6.3)% and 8.7 (3.8) mm(2)/m(2), EB 61.4 (7.8)% and 11.1 (4.6) mm(2)/m(2) respectively; P < 0.05]. Airway wall thickening of non-RB1 airways generation three to six was a feature of asthma only. There was no change in airway geometry of RB1 after prednisolone. Proximal airway wall thickening was associated with AHR in asthma (r = -0.56; P = 0.02). CONCLUSIONS Maintained airway patency in EB may protect against the development of AHR, whereas airway wall thickening may promote AHR in asthma.
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Haldar P, Pavord ID, Shaw DE, Berry MA, Thomas M, Brightling CE, Wardlaw AJ, Green RH. Cluster analysis and clinical asthma phenotypes. Am J Respir Crit Care Med 2008; 178:218-224. [PMID: 18480428 DOI: 10.1164/rccm.200711-1754oc] [Citation(s) in RCA: 1373] [Impact Index Per Article: 85.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
RATIONALE Heterogeneity in asthma expression is multidimensional, including variability in clinical, physiologic, and pathologic parameters. Classification requires consideration of these disparate domains in a unified model. OBJECTIVES To explore the application of a multivariate mathematical technique, k-means cluster analysis, for identifying distinct phenotypic groups. METHODS We performed k-means cluster analysis in three independent asthma populations. Clusters of a population managed in primary care (n = 184) with predominantly mild to moderate disease, were compared with a refractory asthma population managed in secondary care (n = 187). We then compared differences in asthma outcomes (exacerbation frequency and change in corticosteroid dose at 12 mo) between clusters in a third population of 68 subjects with predominantly refractory asthma, clustered at entry into a randomized trial comparing a strategy of minimizing eosinophilic inflammation (inflammation-guided strategy) with standard care. MEASUREMENTS AND MAIN RESULTS Two clusters (early-onset atopic and obese, noneosinophilic) were common to both asthma populations. Two clusters characterized by marked discordance between symptom expression and eosinophilic airway inflammation (early-onset symptom predominant and late-onset inflammation predominant) were specific to refractory asthma. Inflammation-guided management was superior for both discordant subgroups leading to a reduction in exacerbation frequency in the inflammation-predominant cluster (3.53 [SD, 1.18] vs. 0.38 [SD, 0.13] exacerbation/patient/yr, P = 0.002) and a dose reduction of inhaled corticosteroid in the symptom-predominant cluster (mean difference, 1,829 mug beclomethasone equivalent/d [95% confidence interval, 307-3,349 mug]; P = 0.02). CONCLUSIONS Cluster analysis offers a novel multidimensional approach for identifying asthma phenotypes that exhibit differences in clinical response to treatment algorithms.
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Affiliation(s)
- Pranab Haldar
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
| | - Ian D Pavord
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
| | - Dominic E Shaw
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
| | - Michael A Berry
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
| | - Michael Thomas
- Department of General Practice, University of Aberdeen, Aberdeen, United Kingdom
| | | | - Andrew J Wardlaw
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
| | - Ruth H Green
- Institute for Lung Health, Glenfield Hospital, Leicester, United Kingdom
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Haldar P, Ray JK. CAN mediated decarboxylative hydroxylation/alkoxylation of N-aryl-γ-lactam-carboxylic acids at room temperature: an easy access to N-aryl-α-hydroxy/alkoxy-γ-lactams. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.03.147] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Jindal V, Tripathi N, Tungare M, Paschos O, Haldar P, Shahedipour-Sandvik F. Selective area heteroepitaxy of low dimensionala -plane andc -plane InGaN nanostructures using pulsed MOCVD. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pssc.200778599] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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44
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Haldar P, Dutta B, Guin J, Ray JK. Uncatalyzed condensation between aryl-1,2-diamines and diethyl bromomalonate: a one-pot access to substituted ethyl 3-hydroxyquinoxaline-2-carboxylates. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.06.065] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Abstract
A simple glycosylation strategy employing only allyl glycosides is described. In a one-pot fashion, an allyl glycoside is first isomerized to the reactive 1-prop-en-yl glycoside intermediate, which subsequently undergoes glycosylation with a glycosyl acceptor, promoted by NIS at room temperature.
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Affiliation(s)
- Pengfei Wang
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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46
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Haldar P, Pavord ID. Noneosinophilic asthma: A distinct clinical and pathologic phenotype. J Allergy Clin Immunol 2007; 119:1043-52; quiz 1053-4. [PMID: 17472810 DOI: 10.1016/j.jaci.2007.02.042] [Citation(s) in RCA: 195] [Impact Index Per Article: 11.5] [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: 02/09/2007] [Revised: 02/26/2007] [Accepted: 02/26/2007] [Indexed: 11/18/2022]
Abstract
The use of induced sputum to assess airway inflammation in large and diverse populations with asthma has led to the recognition that significant numbers of patients do not have evidence of eosinophilic airway inflammation. The absence of a sputum eosinophilia has been noted in patients across the range of asthma severity; it has also been reported in patients presenting with an asthma exacerbation. However, whether noneosinophilic asthma represents a pathologically distinct and clinically important asthma phenotype remains unclear. In this review, we present recent evidence suggesting that noneosinophilic asthma represents a stable phenotype associated with a distinct lower airway pathology and structure. We suggest that this lower airway inflammation develops in response to etiologic factors acting through the innate immune pathway and that elements of this immune response contribute to airway dysfunction. Finally, we argue that noneosinophilic asthma is associated with clinically important differences in natural history and treatment response. We particularly highlight evidence that noneosinophilic asthma is associated with a reduced short-term and long-term response to corticosteroid therapy.
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Affiliation(s)
- Pranab Haldar
- Institute for Lung Health, Department of Respiratory Medicine, Glenfield Hospital, Leicester, UK
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47
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Haldar P, Barman G, Ray JK. Sodium borohydride–iodine mediated reduction of γ-lactam carboxylic acids followed by DDQ mediated oxidative aromatisation: a simple approach towards N-aryl-formylpyrroles and 1,3-diaryl-formylpyrroles. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.01.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Sagar KS, Abdelmalik H, Wenger J, Haldar P, Goel N, Burgess C. Routine immunisation in India. J Indian Med Assoc 2005; 103:676-8. [PMID: 16821662] [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: 05/10/2023]
Abstract
Vaccine preventable diseases have been reduced in the country since the routine immunisation programme started in 1978 as the Expanded Programme on Immunisation, then in 1985 renamed as Universal Immunisation Programme. Re-emergence of some vaccine preventable disease is a concern to all and the Government of India has launched a new multiyear plan to strengthen the routine immunisation. A number of recommendations was made to address the weaknesses in the programme. Some newer initiatives were also made under the multiyear plan and National Rural Health Mission to strengthen the routine immunisation. The general practitioners can play a positive role while immunising children as per Universal Immunisation Programme. Routine immunisation is one of the key components of polio eradication.
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Haldar P, Ray JK. NaBH4−InCl3-Mediated One-Pot Chemo- and Stereoselective Decarboxylative Reduction of α-Aza gem-Dicarboxylic Esters to Monoalcohols. Org Lett 2005; 7:4341-3. [PMID: 16178528 DOI: 10.1021/ol051453h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] The combination of NaBH4 and a catalytic amount of InCl3 provides a one-pot method for chemo- and stereoselective decarboxylative reduction of gem-dicarboxylic esters 1 to monoalcohols 2 in the presence of the lactam carbonyl in refluxing acetonitrile under inert atmosphere.
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Affiliation(s)
- Pranab Haldar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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50
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Haldar P, Guin J, Ray JK. Sodium borohydride–iodine mediated reduction of γ-lactam carboxylic acids followed by DDQ mediated oxidative aromatisation: a facile entry to N-aryl-formylpyrroles. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2004.12.107] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [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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