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Mohamed N, Mattessich SP, Gelblum D, Lee NY, Barker CA. Radiotherapy (RT) for Cutaneous Adnexal Carcinoma (CAC): 49 Patients Treated at a Single Institution Over 2 Decades. Int J Radiat Oncol Biol Phys 2023; 117:e607-e608. [PMID: 37785828 DOI: 10.1016/j.ijrobp.2023.06.1978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Cutaneous adnexal carcinomas (CACs) are a heterogenous group of rare skin cancers. Management strategies are extrapolated from the treatment of more common skin cancers, and case series describing patients treated with radiotherapy (RT) for CAC are limited to <15 patients. We reviewed our institutional experience to better understand the characteristics and outcomes of patients with CAC treated with RT. MATERIALS/METHODS Patients diagnosed with CAC and treated RT from 2000-2020 were identified using the following keywords: adnexal, microcystic, apocrine, eccrine, sebaceous, sweat gland, syringoma, mucinous, tubular, porocarcinoma, hidradenocarcinoma, and cylindrocarcinoma. Patient, cancer, and treatment characteristics were assessed by retrospective record review. Time to overall survival (OS), locoregional recurrence (LRR), distant metastasis (DM), and progression free survival (PFS) were evaluated using Kaplan-Meier methods. RESULTS Forty-nine patients with a median age of 65 years (IQR 53-82) were identified. Most were white (90%) men (59%) harboring tumors on the head and neck (80%). The most common subtypes of CAC were adnexal adenocarcinoma (39%), sebaceous carcinoma (35%) and microcystic adnexal carcinoma (10%). Patients were treated for de novo cancer (n = 35) or after recurrence (n = 14). Among de novo cases, 9 (26%) were treated with definitive RT, 22 (63%) were treated with surgery and adjuvant RT, and 4 (11%) with palliative RT. Per UICC system, de novo stage at time of RT was I in 2 (6%), II in 9 (26%), III in 12 (34%), IVA in 10 (29%), and IVB in 2 (6%). Median OS was 44 months and median follow-up of surviving patients was 41 months (IQR 17-75). De novo patients treated with definitive RT received a median dose of 70 Gy (IQR 60-73 Gy) and experienced 2-year rates of PFS, LRR, and DM of 30%, 55%, and 40%, respectively. All LRR events occurred within the irradiated volume. De novo patients treated with surgery and adjuvant RT received a median dose of 60 Gy (IQR 60-64 Gy) and experienced 2-year rates of PFS, LRR, and DM of 77%, 13%, and 10%, respectively. All LRR events occurred outside the irradiated volume. Among patients treated at recurrence, most (93%) underwent surgery and adjuvant RT. Per UICC system, their stage at time of RT was II in 2 (15.4%), III in 4 (30.8%), and IVA in 7 (53.8%). Recurrent patients treated with surgery and adjuvant RT received a median dose of 60 Gy (IQR 60-66 Gy) and experienced 2-year rates of PFS, LRR, and DM of 30%, 58%, and 29%, respectively. Three of 4 evaluable patients treated with palliative RT exhibited stable disease or tumor response. CONCLUSION In the largest single institution analysis to date, RT was primarily used for CAC patients as an adjuvant treatment. LRR was less frequent and less likely to occur within irradiated volume in patients selected for surgery and adjuvant RT than those selected for definitive RT or at time of recurrence.
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Affiliation(s)
- N Mohamed
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - D Gelblum
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - N Y Lee
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - C A Barker
- Memorial Sloan Kettering Cancer Center, New York, NY
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Wahab AA, Mohamed N, Ding CH, Muttaqillah NAS, Rosli N, Mohammed F. Salmonella enteritidis abdominal aorta mycotic aneurysm presented with acute cholestatic jaundice: A case report and literature review. Trop Biomed 2023; 40:23-28. [PMID: 37356000 DOI: 10.47665/tb.40.1.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Mycotic aneurysm is one of the extra-intestinal manifestations of Salmonella Enteritidis infection. The diagnosis of this condition is challenging owed to its variation in clinical presentations. We presented a case of a 54-year-old man with underlying diabetes mellitus and chronic smokers presented with acute right flank pain and fever associated with mild jaundice. The initial laboratory investigations suggested features of obstructive jaundice and urinary tract infection. The contrast enhancing computed tomography of the abdomen revealed the presence of saccular mycotic aneurysm located at the infrarenal abdominal aorta. The blood culture grew Salmonella Enteritidis which was susceptible to ceftriaxone, trimethoprim-sulfamethoxazole, ciprofloxacin, ampicillin, and amoxicillin-clavulanic acid. Intravenous ceftriaxone was initiated, and he underwent open surgery and artery repair at day 8 of admission. He responded well to the treatment given and subsequently discharged home after completed three weeks of intravenous ceftriaxone.
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Affiliation(s)
- A A Wahab
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - N Mohamed
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - C H Ding
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - N A S Muttaqillah
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - N Rosli
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - F Mohammed
- Department of Pathology, Faculty of Medicine, Hospital Canselor Taunku Muhriz, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
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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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Rotimi O, Mohamed N, Steele K, Bowles P. Impact of endoscopic sinus surgery on Eustachian tube dysfunction in patients with chronic rhinosinusitis: systematic review and meta-analysis. RHINOL 2022. [DOI: 10.4193/rhinol/22.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background: Eustachian tube dysfunction (ETD) has been associated with inflammatory conditions (1). Many studies have identified a high prevalence of ETD in patients with chronic rhinosinusitis (CRS) (2). However, there is a paucity of higher-level evidence assessing the impact of endoscopic sinus surgery (ESS) on patients with ETD concurrent disease. Methods: Systematic review and meta-analysis of non-randomised studies on the impact of ESS on ETD in patients with CRS, based on the eustachian tube dysfunction questionnaire (ETDQ-7) scores. PRISMA guidelines were followed according to a priori study protocol (PROSPERO Registration number: CRD42021245677). A random-effects model was employed. Results: 21 results were obtained using our search strategy. Four studies met our inclusion criteria. 501 patients were identified in the included studies. The prevalence of ETD in CRS patients in our review was 55.1%. Pooled estimates showed a statistically significant reduction in ETDQ-7 scores. Conclusions: The evidence to date suggests there is a high prevalence of concurrent ETD in CRS patients, the symptoms of which improved following ESS for CRS in this patient group. However, the current evidence base is comprised of uncontrolled case series. High-quality, randomised controlled studies with long-term follow-up are lacking.
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Ibrahim A, Elhassan A, Salman M, Mohammed O, Bashir S, Mohamed N, Ali M, Awad K, Abdelkarem A. 259 Effect of Telegram Videos on Anatomy Education Among 2nd Year Medical Students, University of Khartoum, 2021. Br J Surg 2022. [PMCID: PMC9383538 DOI: 10.1093/bjs/znac039.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Aim
COVID-19 had major effect on the health and medical education. In order to oblige with the social distancing and quarantine, universities shifted to online learning. This study aimed to assess the effect of online education on anatomy DR (dissection room) teaching by the use of telegram software.
Method
This was a cross-sectional, prospective interventional study, which was carried out among 2nd year medical students in University of Khartoum. Students undertook initial tests on the heart and anterior abdominal wall modules. Telegram videos, prepared by the author, on the anatomy of the heart and the anterior abdominal wall were distributed to students. Students took a second test after watching the videos. A total number of 41 students attended heart sessions and 40 students attended the anterior abdominal wall sessions were included.
Results
The pre-test mean score for the heart and abdomen modules were 4.56 ± 2.335 and 6.15 ± 2.94, respectively. The post-tests means were 9.98 ± 2.877 and 8.95 ± 3.14, respectively. 90% and 75% of the students were satisfied with these videos, respectively.
Conclusions
This study revealed that Telegram videos as a method of online teaching had a positive effect on the students' performance, which was evidenced by the significant improvement in student's scores after watching the videos. Additionally, most of the students were satisfied with the videos and give positive feedback.
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Affiliation(s)
| | | | - M. Salman
- University of Khartoum, Khartoum, Sudan
| | | | - S. Bashir
- University of Khartoum, Khartoum, Sudan
| | | | - M. Ali
- Omdurman Islamic University, Khartoum, Sudan
| | - K. Awad
- University of Khartoum, Khartoum, Sudan
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Mohamed N, Rampisela D, Lopez LM. Expression of Estrogen and Progesterone Receptors in a Tailgut Cyst with Carcinoid Tumor. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Tailgut cysts (TC) are congenital lesions that arise in the presacral space. They originate from the embryonic hindgut and usually present between the ages of 30-60, with female predominance. TCs are usually asymptomatic or can present with lower back, perianal or pelvic pain. Malignant transformation of a TC is a rare complication, with adenocarcinoma being the most common, followed by carcinoid tumor. About thirty cases of carcinoid tumors arising in a TC have been reported in the literature so far with a slight female predominance (1.5:1).
Methods/Case Report
We describe a 40-year-old Hispanic woman with a 9-year history of cyclic pelvic pain related to her menstrual cycles. She was diagnosed with adenomyosis and underwent hysterectomy that did not completely resolve her symptoms. Follow-up serial imaging showed a growing complex-cystic presacral mass, which was eventually excised. Grossly, there was a 3.6×3.1×2.5 cm multiloculated cystic mass filled with mucoid material. Microscopically, there were multiple cystic spaces lined by benign squamous and mucinous columnar epithelium and surrounded by smooth muscle cells. A 6-mm carcinoid tumor was found within a cyst wall and confirmed by positive synaptophysin and chromogranin staining with a Ki-67 proliferation index of <2%. Estrogen and progesterone receptor immunostains were positive in the epithelial cyst linings and the stromal cells but not in the carcinoid tumor cells.
Results (if a Case Study enter NA)
NA
Conclusion
We conclude that the diagnosis of TC should be considered in the differential of gynecologic patients with unresolved cyclic pelvic pain and that estrogen and progesterone could have an important role in the pathogenesis of TCs. Furthermore, estrogen receptors can be a therapeutic target in patients with this entity.
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Affiliation(s)
- N Mohamed
- Pathology, Baylor Scott & White Health, Temple, Texas, UNITED STATES
| | - D Rampisela
- Pathology, Baylor Scott & White Health, Temple, Texas, UNITED STATES
| | - L M Lopez
- Pathology, Baylor Scott & White Health, Temple, Texas, UNITED STATES
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Mohamed N, Sinclair K. 893 Consenting for Appendicectomy. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Appendicitis denotes to the inflammation of the appendix with over 50,000 cases in the UK per year. The treatment of choice is appendicectomy and this is one of the most common operations in the UK.
There are nil NICE or King’s College Hospital (KCH) guidance available on consenting for appendicectomy. Thus, guidance from Guy’s and St Thomas’ and Whittingham Health was used as reference and the consent forms at KCH were analysed for all appendicectomies over 2 months. A retrospective observational audit (Cycle 1) was conducted between Dec 2018 – Jan 2019 consisting of 34 patients. It assessed whether common complications were documented clearly and any possible complications.
This audit identified that consenting for diagnostic laparoscopy/appendicectomy did not cover many serious complications and was overall inadequate. One of the most common and serious complications was ileus/SBO (occurred in 9%) and was not consented for in 88% of patients. 12% of patients had a normal appendix and this was not consented in 100% of these patients.
Later, posters and teaching sessions were created to optimise the consent process for appendicectomy.
This was re-audited (Cycle 2) again between June 2019 – July 2019 with 49 patients to identify whether a positive change was identified. It identified that an 12% increase in consenting for ileus/SBO, 10% increase in conversion to open and 47% of individuals started consenting for hernia repair.
This work is vital as inadequate consenting can destroy doctor-patient relationship and result in litigation and we encourage clear consenting guideline for appendicectomies across trusts.
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Affiliation(s)
- N Mohamed
- King's College Hospital, London, United Kingdom
| | - K Sinclair
- King's College Hospital, London, United Kingdom
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Mohamed N, Makaranka S, Cheema K, Harnett P. 890 Bilateral Acetabular Fractures Induced by An Epilepticseizure In a Paediatric Patient: A Unique Case Andits Management. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Bilateral acetabular fractures following epileptic seizures are a rare but known occurrence in adults, with an 18.5% mortality rate. These fractures occurring post epileptic seizures have not been previously documented in children. We report a case of a 13-year-old boy who presented to hospital via ambulance following two violent generalised tonic–clonic seizures in a postictal state, metabolically acidotic and a low haemoglobin. Acute abdomen was suspected, and the patient underwent a CT scan which showed bilateral acetabular fractures with central dislocations of both femoral heads and free fluid in the abdomen. The patient underwent initial damage control intervention with insertion of bilateral distal femur skeletal traction. Definitive fixation of the acetabular fractures occurred 1 week later with an open reduction internal fixation with novel supra- pectineal plates using a Pfannenstiel incision. We use this report to increase awareness of significant pelvic injuries in paediatric patients post epileptic seizures.
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Affiliation(s)
- N Mohamed
- Royal Sussex County Hospital, Brighton, United Kingdom
| | - S Makaranka
- King's College Hospital, London, United Kingdom
| | - K Cheema
- King's College Hospital, London, United Kingdom
| | - P Harnett
- King's College Hospital, London, United Kingdom
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Archer M, Dogra N, Dovey Z, Ganta T, Jang HS, Khusid JA, Lantz A, Mihalopoulos M, Stockert JA, Zahalka A, Björnebo L, Gaglani S, Noh MR, Kaplan SA, Mehrazin R, Badani KK, Wiklund P, Tsao K, Lundon DJ, Mohamed N, Lucien F, Padanilam B, Gupta M, Tewari AK, Kyprianou N. Role of α- and β-adrenergic signaling in phenotypic targeting: significance in benign and malignant urologic disease. Cell Commun Signal 2021; 19:78. [PMID: 34284799 PMCID: PMC8290582 DOI: 10.1186/s12964-021-00755-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 05/28/2021] [Indexed: 01/17/2023] Open
Abstract
The urinary tract is highly innervated by autonomic nerves which are essential in urinary tract development, the production of growth factors, and the control of homeostasis. These neural signals may become dysregulated in several genitourinary (GU) disease states, both benign and malignant. Accordingly, the autonomic nervous system is a therapeutic target for several genitourinary pathologies including cancer, voiding dysfunction, and obstructing nephrolithiasis. Adrenergic receptors (adrenoceptors) are G-Protein coupled-receptors that are distributed throughout the body. The major function of α1-adrenoceptors is signaling smooth muscle contractions through GPCR and intracellular calcium influx. Pharmacologic intervention of α-and β-adrenoceptors is routinely and successfully implemented in the treatment of benign urologic illnesses, through the use of α-adrenoceptor antagonists. Furthermore, cell-based evidence recently established the antitumor effect of α1-adrenoceptor antagonists in prostate, bladder and renal tumors by reducing neovascularity and impairing growth within the tumor microenvironment via regulation of the phenotypic epithelial-mesenchymal transition (EMT). There has been a significant focus on repurposing the routinely used, Food and Drug Administration-approved α1-adrenoceptor antagonists to inhibit GU tumor growth and angiogenesis in patients with advanced prostate, bladder, and renal cancer. In this review we discuss the current evidence on (a) the signaling events of the autonomic nervous system mediated by its cognate α- and β-adrenoceptors in regulating the phenotypic landscape (EMT) of genitourinary organs; and (b) the therapeutic significance of targeting this signaling pathway in benign and malignant urologic disease. Video abstract.
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Affiliation(s)
- M. Archer
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - N. Dogra
- Department of Pathology and Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY USA
- Department of Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Z. Dovey
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - T. Ganta
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
- Division of Hematology and Medical Oncology, Mount Sinai Hospital, New York, NY USA
| | - H.-S. Jang
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - J. A. Khusid
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - A. Lantz
- Department of Molecular Medicine and Surgery, Section of Urology, Karolinska Institute, Stockholm, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - M. Mihalopoulos
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - J. A. Stockert
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - A. Zahalka
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - L. Björnebo
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - S. Gaglani
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - M. R. Noh
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - S. A. Kaplan
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - R. Mehrazin
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - K. K. Badani
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - P. Wiklund
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - K. Tsao
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
- Division of Hematology and Medical Oncology, Mount Sinai Hospital, New York, NY USA
| | - D. J. Lundon
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - N. Mohamed
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - F. Lucien
- Department of Urology, Mayo Clinic, Rochester, MN USA
| | - B. Padanilam
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - M. Gupta
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
| | - A. K. Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - N. Kyprianou
- Department of Urology, Icahn School of Medicine at Mount Sinai, 6th Floor, 1425 Madison Avenue, New York, NY 10029 USA
- Department of Pathology and Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY USA
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Choueiri T, Albiges L, Powles T, Geng A, Mohamed N, Wang F, Motzer R. A phase 3 study (COSMIC-313) of cabozantinib in combination with nivolumab and ipilimumab in patients with previously untreated advanced renal cell carcinoma of intermediate or poor risk. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36235-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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11
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Kang J, Tchekmedyian V, Fan M, Wang H, Kitpanit S, Mohamed N, Rybkin A, Lee A, Chen L, Yu Y, Riaz N, McBride S, Tsai C, Ho A, Dunn L, Fetten J, Pfister D, Zhang Z, Lee N, Sherman E. Split High-Dose Cisplatin: An Alternate High-Dose Cisplatin Administration Schedule for Definitive Chemoradiation in Oropharyngeal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ansari W, Quintana A, Mohamed N, Patino N, Irani P, Coyle K, Chang H, Uyei J. PIN43 IMPACT of CRE Infections on Hospital LOS and Mortality in ASIA. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.290] [Citation(s) in RCA: 1] [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: 10/23/2022]
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Kitpanit S, Lee A, Fan D, Fan M, Wang H, Mohamed N, Spielsinger D, Gelblum D, Sherman E, Dunn L, Boyle J, Wong R, Cohen M, Kang J, Tsai C, McBride S, Zakeri K, Chen L, Yu Y, Riaz N, Lee N. Clinical Outcomes and Toxicities in Oropharyngeal Cancer (OPC) Patients Treated with Proton Therapy: A Single Institutional Experience. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bruce-Brand C, Mohamed N, Botes S, Bates WD. Concurrent Diffuse Large B-Cell Lymphoma and Epstein-Barr Virus-Associated Smooth Muscle Tumour in the Small Bowel of an HIV-Positive Adult-a Case Report and Review of the Literature. J Gastrointest Cancer 2020; 50:572-577. [PMID: 29297137 DOI: 10.1007/s12029-017-0046-3] [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: 11/28/2022]
Affiliation(s)
- C Bruce-Brand
- Tygerberg Hospital, University of Stellenbosch, Cape Town, South Africa.
| | - N Mohamed
- Tygerberg Hospital, University of Stellenbosch, Cape Town, South Africa
| | - S Botes
- Tygerberg Hospital, University of Stellenbosch, Cape Town, South Africa
| | - W D Bates
- Tygerberg Hospital, University of Stellenbosch, Cape Town, South Africa
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Dufresne J, Bowden P, Thavarajah T, Florentinus-Mefailoski A, Chen ZZ, Tucholska M, Norzin T, Ho MT, Phan M, Mohamed N, Ravandi A, Stanton E, Slutsky AS, Dos Santos CC, Romaschin A, Marshall JC, Addison C, Malone S, Heyland D, Scheltens P, Killestein J, Teunissen C, Diamandis EP, Siu KWM, Marshall JG. The plasma peptides of breast versus ovarian cancer. Clin Proteomics 2019; 16:43. [PMID: 31889940 PMCID: PMC6927194 DOI: 10.1186/s12014-019-9262-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 08/02/2019] [Accepted: 12/05/2019] [Indexed: 02/07/2023] Open
Abstract
Background There is a need to demonstrate a proof of principle that proteomics has the capacity to analyze plasma from breast cancer versus other diseases and controls in a multisite clinical trial design. The peptides or proteins that show a high observation frequency, and/or precursor intensity, specific to breast cancer plasma might be discovered by comparison to other diseases and matched controls. The endogenous tryptic peptides of breast cancer plasma were compared to ovarian cancer, female normal, sepsis, heart attack, Alzheimer's and multiple sclerosis along with the institution-matched normal and control samples collected directly onto ice. Methods Endogenous tryptic peptides were extracted from individual breast cancer and control EDTA plasma samples in a step gradient of acetonitrile, and collected over preparative C18 for LC-ESI-MS/MS with a set of LTQ XL linear quadrupole ion traps working together in parallel to randomly and independently sample clinical populations. The MS/MS spectra were fit to fully tryptic peptides or phosphopeptides within proteins using the X!TANDEM algorithm. The protein observation frequency was counted using the SEQUEST algorithm after selecting the single best charge state and peptide sequence for each MS/MS spectra. The observation frequency was subsequently tested by Chi Square analysis. The log10 precursor intensity was compared by ANOVA in the R statistical system. Results Peptides and/or phosphopeptides of common plasma proteins such as APOE, C4A, C4B, C3, APOA1, APOC2, APOC4, ITIH3 and ITIH4 showed increased observation frequency and/or precursor intensity in breast cancer. Many cellular proteins also showed large changes in frequency by Chi Square (χ2 > 100, p < 0.0001) in the breast cancer samples such as CPEB1, LTBP4, HIF-1A, IGHE, RAB44, NEFM, C19orf82, SLC35B1, 1D12A, C8orf34, HIF1A, OCLN, EYA1, HLA-DRB1, LARS, PTPDC1, WWC1, ZNF562, PTMA, MGAT1, NDUFA1, NOGOC, OR1E1, OR1E2, CFI, HSA12, GCSH, ELTD1, TBX15, NR2C2, FLJ00045, PDLIM1, GALNT9, ASH2L, PPFIBP1, LRRC4B, SLCO3A1, BHMT2, CS, FAM188B2, LGALS7, SAT2, SFRS8, SLC22A12, WNT9B, SLC2A4, ZNF101, WT1, CCDC47, ERLIN1, SPFH1, EID2, THOC1, DDX47, MREG, PTPRE, EMILIN1, DKFZp779G1236 and MAP3K8 among others. The protein gene symbols with large Chi Square values were significantly enriched in proteins that showed a complex set of previously established functional and structural relationships by STRING analysis. An increase in mean precursor intensity of peptides was observed for QSER1 as well as SLC35B1, IQCJ-SCHIP1, MREG, BHMT2, LGALS7, THOC1, ANXA4, DHDDS, SAT2, PTMA and FYCO1 among others. In contrast, the QSER1 peptide QPKVKAEPPPK was apparently specific to ovarian cancer. Conclusion There was striking agreement between the breast cancer plasma peptides and proteins discovered by LC-ESI-MS/MS with previous biomarkers from tumors, cells lines or body fluids by genetic or biochemical methods. The results indicate that variation in plasma peptides from breast cancer versus ovarian cancer may be directly discovered by LC-ESI-MS/MS that will be a powerful tool for clinical research. It may be possible to use a battery of sensitive and robust linear quadrupole ion traps for random and independent sampling of plasma from a multisite clinical trial.
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Affiliation(s)
- Jaimie Dufresne
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Pete Bowden
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Thanusi Thavarajah
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Angelique Florentinus-Mefailoski
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Zhuo Zhen Chen
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Monika Tucholska
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Tenzin Norzin
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Margaret Truc Ho
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Morla Phan
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Nargiz Mohamed
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
| | - Amir Ravandi
- 2Institute of Cardiovascular Sciences, St. Boniface Hospital Research Center, University of Manitoba, Winnipeg, Canada
| | - Eric Stanton
- 3Division of Cardiology, Department of Medicine, McMaster University, Hamilton, Canada
| | - Arthur S Slutsky
- 4St. Michael's Hospital, Keenan Chair in Medicine, Professor of Medicine, Surgery & Biomedical Engineering, University of Toronto, Toronto, Canada
| | - Claudia C Dos Santos
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - Alexander Romaschin
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - John C Marshall
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - Christina Addison
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Shawn Malone
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Daren Heyland
- 7Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Canada
| | - Philip Scheltens
- 8Alzheimer Center, Dept of Neurology, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Joep Killestein
- 9MS Center, Dept of Neurology, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Charlotte Teunissen
- 10Neurochemistry Lab and Biobank, Dept of Clinical Chemsitry, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | | | - K W M Siu
- 12University of Windsor, Windsor, Canada
| | - John G Marshall
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada.,13International Biobank of Luxembourg (IBBL), Luxembourg Institute of Health (formerly CRP Sante Luxembourg), Strassen, Luxembourg
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Dufresne J, Bowden P, Thavarajah T, Florentinus-Mefailoski A, Chen ZZ, Tucholska M, Norzin T, Ho MT, Phan M, Mohamed N, Ravandi A, Stanton E, Slutsky AS, Dos Santos CC, Romaschin A, Marshall JC, Addison C, Malone S, Heyland D, Scheltens P, Killestein J, Teunissen CE, Diamandis EP, Michael Siu KW, Marshall JG. The plasma peptides of ovarian cancer. Clin Proteomics 2018; 15:41. [PMID: 30598658 PMCID: PMC6302491 DOI: 10.1186/s12014-018-9215-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [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: 08/29/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022] Open
Abstract
Background It may be possible to discover new diagnostic or therapeutic peptides or proteins from blood plasma by using liquid chromatography and tandem mass spectrometry to identify, quantify and compare the peptides cleaved ex vivo from different clinical populations. The endogenous tryptic peptides of ovarian cancer plasma were compared to breast cancer and female cancer normal controls, other diseases with their matched or normal controls, plus ice cold plasma to control for pre-analytical variation. Methods The endogenous tryptic peptides or tryptic phospho peptides (i.e. without exogenous digestion) were analyzed from 200 μl of EDTA plasma. The plasma peptides were extracted by a step gradient of organic/water with differential centrifugation, dried, and collected over C18 for analytical HPLC nano electrospray ionization and tandem mass spectrometry (LC–ESI–MS/MS) with a linear quadrupole ion trap. The endogenous peptides of ovarian cancer were compared to multiple disease and normal samples from different institutions alongside ice cold controls. Peptides were randomly and independently sampled by LC–ESI–MS/MS. Precursor ions from peptides > E4 counts were identified by the SEQUEST and X!TANDEM algorithms, filtered in SQL Server, before testing of frequency counts by Chi Square (χ2), for analysis with the STRING algorithm, and comparison of precursor intensity by ANOVA in the R statistical system with the Tukey-Kramer Honestly Significant Difference (HSD) test. Results Peptides and/or phosphopeptides of common plasma proteins such as HPR, HP, HPX, and SERPINA1 showed increased observation frequency and/or precursor intensity in ovarian cancer. Many cellular proteins showed large changes in frequency by Chi Square (χ2 > 60, p < 0.0001) in the ovarian cancer samples such as ZNF91, ZNF254, F13A1, LOC102723511, ZNF253, QSER1, P4HA1, GPC6, LMNB2, PYGB, NBR1, CCNI2, LOC101930455, TRPM5, IGSF1, ITGB1, CHD6, SIRT1, NEFM, SKOR2, SUPT20HL1, PLCE1, CCDC148, CPSF3, MORN3, NMI, XTP11, LOC101927572, SMC5, SEMA6B, LOXL3, SEZ6L2, and DHCR24. The protein gene symbols with large Chi Square values were significantly enriched in proteins that showed a complex set of previously established functional and structural relationships by STRING analysis. Analysis of the frequently observed proteins by ANOVA confirmed increases in mean precursor intensity in ZFN91, TRPM5, SIRT1, CHD6, RIMS1, LOC101930455 (XP_005275896), CCDC37 and GIMAP4 between ovarian cancer versus normal female and other diseases or controls by the Tukey–Kramer HSD test. Conclusion Here we show that separation of endogenous peptides with a step gradient of organic/water and differential centrifugation followed by random and independent sampling by LC–ESI–MS/MS with analysis of peptide frequency and intensity by SQL Server and R revealed significant difference in the ex vivo cleavage of peptides between ovarian cancer and other clinical treatments. There was striking agreement between the proteins discovered from cancer plasma versus previous biomarkers discovered in tumors by genetic or biochemical methods. The results indicate that variation in plasma proteins from ovarian cancer may be directly discovered by LC–ESI–MS/MS that will be a powerful tool for clinical research. Electronic supplementary material The online version of this article (10.1186/s12014-018-9215-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jaimie Dufresne
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Pete Bowden
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Thanusi Thavarajah
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | | | - Zhuo Zhen Chen
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Monika Tucholska
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Tenzin Norzin
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Margaret Truc Ho
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Morla Phan
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Nargiz Mohamed
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada
| | - Amir Ravandi
- 2Institute of Cardiovascular Sciences, St Boniface Hospital Research Center, University of Manitoba, Winnipeg, Canada
| | - Eric Stanton
- 3Division of Cardiology, Department of Medicine, McMaster University, Hamilton, Canada
| | - Arthur S Slutsky
- 4Keenan Chair in Medicine, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Claudia C Dos Santos
- 5Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Alexander Romaschin
- 5Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - John C Marshall
- 5Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Christina Addison
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Shawn Malone
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Daren Heyland
- 7Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Canada
| | - Philip Scheltens
- 8Alzheimer Center, Department of Neurology, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | - Joep Killestein
- 9MS Center, Department of Neurology, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | - Charlotte E Teunissen
- 10Neurochemistry Lab and Biobank, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | | | | | - John G Marshall
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Ryerson University, Toronto, Canada.,13International Biobank of Luxembourg (IBBL), Luxembourg Institute of Health (formerly CRP Sante Luxembourg), Strassen, Luxembourg.,14Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St., Toronto, ON Canada
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Dufresne J, Bowden P, Thavarajah T, Florentinus-Mefailoski A, Chen ZZ, Tucholska M, Norzin T, Ho MT, Phan M, Mohamed N, Ravandi A, Stanton E, Slutsky AS, Dos Santos CC, Romaschin A, Marshall JC, Addison C, Malone S, Heyland D, Scheltens P, Killestein J, Teunissen C, Diamandis EP, Siu KWM, Marshall JG. The plasma peptidome. Clin Proteomics 2018; 15:39. [PMID: 30519149 PMCID: PMC6271647 DOI: 10.1186/s12014-018-9211-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/23/2018] [Indexed: 02/07/2023] Open
Abstract
Background It may be possible to discover new diagnostic or therapeutic peptides or proteins from blood plasma using LC–ESI–MS/MS to identify, with a linear quadrupole ion trap to identify, quantify and compare the statistical distributions of peptides cleaved ex vivo from plasma samples from different clinical populations. Methods A systematic method for the organic fractionation of plasma peptides was applied to identify and quantify the endogenous tryptic peptides from human plasma from multiple institutions by C18 HPLC followed nano electrospray ionization and tandem mass spectrometry (LC–ESI–MS/MS) with a linear quadrupole ion trap. The endogenous tryptic peptides, or tryptic phospho peptides (i.e. without exogenous digestion), were extracted in a mixture of organic solvent and water, dried and collected by preparative C18. The tryptic peptides from 6 institutions with 12 different disease and normal EDTA plasma populations, alongside ice cold controls for pre-analytical variation, were characterized by mass spectrometry. Each patient plasma was precipitated in 90% acetonitrile and the endogenous tryptic peptides extracted by a stepwise gradient of increasing water and then formic acid resulting in 10 sub-fractions. The fractionated peptides were manually collected over preparative C18 and injected for 1508 LC–ESI–MS/MS experiments analyzed in SQL Server R. Results Peptides that were cleaved in human plasma by a tryptic activity ex vivo provided convenient and sensitive access to most human proteins in plasma that show differences in the frequency or intensity of proteins observed across populations that may have clinical significance. Combination of step wise organic extraction of 200 μL of plasma with nano electrospray resulted in the confident identification and quantification ~ 14,000 gene symbols by X!TANDEM that is the largest number of blood proteins identified to date and shows that you can monitor the ex vivo proteolysis of most human proteins, including interleukins, from blood. A total of 15,968,550 MS/MS spectra ≥ E4 intensity counts were correlated by the SEQUEST and X!TANDEM algorithms to a federated library of 157,478 protein sequences that were filtered for best charge state (2+ or 3+) and peptide sequence in SQL Server resulting in 1,916,672 distinct best-fit peptide correlations for analysis with the R statistical system. SEQUEST identified some 140,054 protein accessions, or some ~ 26,000 gene symbols, proteins or loci, with at least 5 independent correlations. The X!TANDEM algorithm made at least 5 best fit correlations to more than 14,000 protein gene symbols with p-values and FDR corrected q-values of ~ 0.001 or less. Log10 peptide intensity values showed a Gaussian distribution from E8 to E4 arbitrary counts by quantile plot, and significant variation in average precursor intensity across the disease and controls treatments by ANOVA with means compared by the Tukey–Kramer test. STRING analysis of the top 2000 gene symbols showed a tight association of cellular proteins that were apparently present in the plasma as protein complexes with related cellular components, molecular functions and biological processes. Conclusions The random and independent sampling of pre-fractionated blood peptides by LC-ESI-MS/MS with SQL Server-R analysis revealed the largest plasma proteome to date and was a practical method to quantify and compare the frequency or log10 intensity of individual proteins cleaved ex vivo across populations of plasma samples from multiple clinical locations to discover treatment-specific variation using classical statistics suitable for clinical science. It was possible to identify and quantify nearly all human proteins from EDTA plasma and compare the results of thousands of LC–ESI–MS/MS experiments from multiple clinical populations using standard database methods in SQL Server and classical statistical strategies in the R data analysis system. Electronic supplementary material The online version of this article (10.1186/s12014-018-9211-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jaimie Dufresne
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Pete Bowden
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Thanusi Thavarajah
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Angelique Florentinus-Mefailoski
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Zhuo Zhen Chen
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Monika Tucholska
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Tenzin Norzin
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Margaret Truc Ho
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Morla Phan
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Nargiz Mohamed
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada
| | - Amir Ravandi
- 2Institute of Cardiovascular Sciences, St Boniface Hospital Research Center, University of Manitoba, Winnipeg, Canada
| | - Eric Stanton
- 3Division of Cardiology, Department of Medicine, McMaster University, Hamilton, Canada
| | - Arthur S Slutsky
- 4St. Michael's Hospital, Keenan Chair in Medicine, University of Toronto, Toronto, Canada
| | - Claudia C Dos Santos
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - Alexander Romaschin
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - John C Marshall
- 5St. Michael's Hospital, Keenan Research Centre for Biomedical Science, Toronto, Canada
| | - Christina Addison
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Shawn Malone
- 6Program for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Daren Heyland
- 7Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Canada
| | - Philip Scheltens
- 8Alzheimer Center, Department of Neurology, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Joep Killestein
- 9MS Center, Department of Neurology, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Charlotte Teunissen
- 10Neurochemistry Lab and Biobank, Department of Clinical Chemistry, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | | | - K W M Siu
- 12University of Windsor, Windsor, Canada
| | - John G Marshall
- 1Ryerson Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Faculty of Science, Ryerson University, 350 Victoria St, Toronto, ON Canada.,13International Biobank of Luxembourg (IBBL), Luxembourg Institute of Health (formerly CRP Sante Luxembourg), Strassen, Luxembourg
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Elemam R, Uthman I, Yahya A, Mohamed N, Shaltout A. Efficacy of multimodality treatment in survival patterns among patients with endometrial carcinoma stage III. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy436.014] [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: 11/13/2022] Open
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Abobkr A, Shaltout A, Elghareeb R, Mohamed N, Uthman I. Surgery versus combined radiotherapy and chemotherapy: Survival patterns among patients with laryngeal squamous cell carcinoma stage III and IV. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy438.028] [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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Gurtman A, Begier E, Mohamed N, Baber J, Sabharwal C, Haupt RM, Edwards H, Cooper D, Jansen KU, Anderson AS. The development of a staphylococcus aureus four antigen vaccine for use prior to elective orthopedic surgery. Hum Vaccin Immunother 2018; 15:358-370. [PMID: 30215582 DOI: 10.1080/21645515.2018.1523093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Staphylococcus aureus (S. aureus) is a challenging bacterial pathogen which can cause a range of diseases, from mild skin infections, to more serious and invasive disease including deep or organ space surgical site infections, life-threatening bacteremia, and sepsis. S. aureus rapidly develops resistance to antibiotic treatments. Despite current infection control measures, the burden of disease remains high. The most advanced vaccine in clinical development is a 4 antigen S. aureus vaccine (SA4Ag) candidate that is being evaluated in a phase 2b/3 efficacy study in patients undergoing elective spinal fusion surgery (STaphylococcus aureus suRgical Inpatient Vaccine Efficacy [STRIVE]). SA4Ag has been shown in early phase clinical trials to be generally safe and well tolerated, and to induce high levels of bactericidal antibodies in healthy adults. In this review we discuss the design of SA4Ag, as well as the proposed clinical development plan supporting licensure of SA4Ag for the prevention of invasive disease caused by S. aureus in elective orthopedic surgical populations. We also explore the rationale for the generalizability of the results of the STRIVE efficacy study (patients undergoing elective open posterior multilevel instrumented spinal fusion surgery) to a broad elective orthopedic surgery population due to the common pathophysiology of invasive S. aureus disease and commonalties of patient and procedural risk factors for developing postoperative S. aureus surgical site infections.
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Affiliation(s)
- A Gurtman
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - E Begier
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - N Mohamed
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - J Baber
- b Pfizer Vaccine Research and Development , Sydney , NSW , Australia
| | - C Sabharwal
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - R M Haupt
- c Medical Development, Scientific and Clinical Affairs , Pfizer, Inc ., Collegeville , PA , USA
| | - H Edwards
- d World Wide Regulatory Affairs , Pfizer Inc ., Walton Oaks , UK
| | - D Cooper
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - K U Jansen
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - A S Anderson
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
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Erman F, Ismail A, Abdullah R, Alhawari A, Shabaneh A, Mohamed N. UHR RFID ring resonator-based tag antenna with photonic bandgap structure for metallic objects. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i3s.49] [Citation(s) in RCA: 2] [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: 11/17/2022] Open
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Mohamed N, Wang MY, Le Huec JC, Liljenqvist U, Scully IL, Baber J, Begier E, Jansen KU, Gurtman A, Anderson AS. Vaccine development to prevent Staphylococcus aureus surgical-site infections. Br J Surg 2017; 104:e41-e54. [PMID: 28121039 DOI: 10.1002/bjs.10454] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/27/2016] [Accepted: 11/06/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Staphylococcus aureus surgical-site infections (SSIs) are a major cause of poor health outcomes, including mortality, across surgical specialties. Despite current advances as a result of preventive interventions, the disease burden of S. aureus SSI remains high, and increasing antibiotic resistance continues to be a concern. Prophylactic S. aureus vaccines may represent an opportunity to prevent SSI. METHODS A review of SSI pathophysiology was undertaken in the context of evaluating new approaches to developing a prophylactic vaccine to prevent S. aureus SSI. RESULTS A prophylactic vaccine ideally would provide protective immunity at the time of the surgical incision to prevent initiation and progression of infection. Although the pathogenicity of S. aureus is attributed to many virulence factors, previous attempts to develop S. aureus vaccines targeted only a single virulence mechanism. The field has now moved towards multiple-antigen vaccine strategies, and promising results have been observed in early-phase clinical studies that supported the recent initiation of an efficacy trial to prevent SSI. CONCLUSION There is an unmet medical need for novel S. aureus SSI prevention measures. Advances in understanding of S. aureus SSI pathophysiology could lead to the development of effective and safe prophylactic multiple-antigen vaccines to prevent S. aureus SSI.
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Affiliation(s)
- N Mohamed
- Pfizer Vaccine Research and Development, Pearl River, New York, USA
| | - M Y Wang
- Departments of Neurological Surgery and Rehabilitation Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - J-C Le Huec
- Spine Unit 2, Surgical Research Laboratory, Bordeaux University Hospital, Bordeaux, France
| | - U Liljenqvist
- Department of Spine Surgery, St Franziskus Hospital Muenster, Münster, Germany
| | - I L Scully
- Pfizer Vaccine Research and Development, Pearl River, New York, USA
| | - J Baber
- Pfizer Vaccine Clinical Research and Development, Sydney, New South Wales, Australia
| | - E Begier
- Pfizer Vaccine Clinical Research and Development, Pearl River, New York, USA
| | - K U Jansen
- Pfizer Vaccine Research and Development, Pearl River, New York, USA
| | - A Gurtman
- Pfizer Vaccine Clinical Research and Development, Pearl River, New York, USA
| | - A S Anderson
- Pfizer Vaccine Research and Development, Pearl River, New York, USA
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Harth M, Burck I, Eichler K, Leberer L, Gruber T, Mohamed N, Vogl T. Retrospektiver Vergleich der CT-gesteuerten Knochenbiopsie mit einem Handbohrer und einem elektrischen Bohrer. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - I Burck
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt a.M
| | - K Eichler
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt
| | - L Leberer
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt
| | - T Gruber
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt
| | - N Mohamed
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt
| | - T Vogl
- Institut für interventionelle und diagnostische Radiologie, Radiologie Universität Frankfurt a. M., Frankfurt
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Moreau P, Joshua D, Chng WJ, Palumbo A, Goldschmidt H, Hájek R, Facon T, Ludwig H, Pour L, Niesvizky R, Oriol A, Rosiñol L, Suvorov A, Gaidano G, Pika T, Weisel K, Goranova-Marinova V, Gillenwater HH, Mohamed N, Aggarwal S, Feng S, Dimopoulos MA. Impact of prior treatment on patients with relapsed multiple myeloma treated with carfilzomib and dexamethasone vs bortezomib and dexamethasone in the phase 3 ENDEAVOR study. Leukemia 2017; 31:115-122. [PMID: 27491641 PMCID: PMC5220137 DOI: 10.1038/leu.2016.186] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 06/22/2016] [Indexed: 01/15/2023]
Abstract
The randomized phase 3 ENDEAVOR study (N=929) compared carfilzomib and dexamethasone (Kd) with bortezomib and dexamethasone (Vd) in relapsed multiple myeloma (RMM). We performed a subgroup analysis from ENDEAVOR in patients categorized by number of prior lines of therapy or by prior treatment. Median progression-free survival (PFS) for patients with one prior line was 22.2 months for Kd vs 10.1 months for Vd, and median PFS for patients with ⩾2 prior lines was 14.9 months for Kd vs 8.4 months for Vd. For patients with prior bortezomib exposure, the median PFS was 15.6 months for Kd vs 8.1 months for Vd, and for patients with prior lenalidomide exposure the median PFS was 12.9 months for Kd vs 7.3 months for Vd. Overall response rates (Kd vs Vd) were 81.9 vs 65.5% (one prior line), 72.0 vs 59.7% (⩾2 prior lines), 71.2 vs 60.3% (prior bortezomib) and 70.1 vs 59.3% (prior lenalidomide). The safety profile in the prior lines subgroups was qualitatively similar to that in the broader ENDEAVOR population. In RMM, outcomes are improved when receiving treatment with carfilzomib compared with bortezomib, regardless of the number of prior therapy lines or prior exposure to bortezomib or lenalidomide.
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Affiliation(s)
- P Moreau
- University of Nantes, Nantes, France
| | - D Joshua
- Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - W-J Chng
- National University Cancer Institute, National University Health System; Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | | | | | - R Hájek
- University Hospital Ostrava, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - T Facon
- CHRU Lille Hôpital Claude Huriez, Lille, France
| | - H Ludwig
- Wilhelminen Cancer Research Institute, Wilhelminenspital, Vienna, Austria
| | - L Pour
- University Hospital Brno, Brno, Czech Republic
| | - R Niesvizky
- Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY, USA
| | - A Oriol
- Institut Català d'Oncologia, Institut Josep Carreras, Hospital Germans Trias i Pujol, Barcelona, Spain
| | - L Rosiñol
- Hospital Clínic de Barcelona, Barcelona, Spain
| | - A Suvorov
- Hematological Department, First Republican Clinical Hospital of Udmurtia, Izhevsk, Russia
| | - G Gaidano
- Division of Hematology, Department of Translational Medicine, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | - T Pika
- Department of Hematooncology, University Hospital Olomouc, Olomouc, Czech Republic
| | - K Weisel
- Universitätsklinikum Tübingen, Tübingen, Germany
| | - V Goranova-Marinova
- University Multiprofile Hospital for Active Treatment ‘Sv. Georgi' and Medical University, Plovdiv, Bulgaria
| | - H H Gillenwater
- Onyx Pharmaceuticals, Inc., an Amgen subsidiary, South San Francisco, CA, USA
| | - N Mohamed
- Onyx Pharmaceuticals, Inc., an Amgen subsidiary, South San Francisco, CA, USA
| | - S Aggarwal
- Onyx Pharmaceuticals, Inc., an Amgen subsidiary, South San Francisco, CA, USA
| | - S Feng
- Onyx Pharmaceuticals, Inc., an Amgen subsidiary, South San Francisco, CA, USA
| | - M A Dimopoulos
- National and Kapodistrian University of Athens, Athens, Greece
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Zaki H, Hussien A, Mohamed N, Alkhader H. A comparison between fresh euploid embryo transfer at late day 5 versus day 6. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.584] [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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Rasmuson J, Pourazar J, Mohamed N, Lejon K, Evander M, Blomberg A, Ahlm C. Cytotoxic immune responses in the lungs correlate to disease severity in patients with hantavirus infection. Eur J Clin Microbiol Infect Dis 2016; 35:713-21. [PMID: 26873376 PMCID: PMC4819462 DOI: 10.1007/s10096-016-2592-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 01/19/2016] [Indexed: 12/14/2022]
Abstract
Hantavirus infections may cause severe and sometime life-threatening lung failure. The pathogenesis is not fully known and there is an urgent need for effective treatment. We aimed to investigate the association between pulmonary viral load and immune responses, and their relation to disease severity. Bronchoscopy with sampling of bronchoalveolar lavage (BAL) fluid was performed in 17 patients with acute Puumala hantavirus infection and 16 healthy volunteers acting as controls. Lymphocyte subsets, granzyme concentrations, and viral load were determined by flow cytometry, enzyme-linked immunosorbent assay (ELISA), and quantitative reverse transcription polymerase chain reaction (RT-PCR), respectively. Analyses of BAL fluid revealed significantly higher numbers of activated CD8+ T cells and natural killer (NK) cells, as well as higher concentrations of the cytotoxins granzymes A and B in hantavirus-infected patients, compared to controls. In patients, Puumala hantavirus RNA was detected in 88 % of BAL cell samples and correlated inversely to the T cell response. The magnitude of the pulmonary cytotoxic lymphocyte response correlated to the severity of disease and systemic organ dysfunction, in terms of need for supplemental oxygen treatment, hypotension, and laboratory data indicating renal failure, cardiac dysfunction, vascular leakage, and cell damage. Regulatory T cell numbers were significantly lower in patients compared to controls, and may reflect inadequate immune regulation during hantavirus infection. Hantavirus infection elicits a pronounced cytotoxic lymphocyte response in the lungs. The magnitude of the immune response was associated with disease severity. These results give insights into the pathogenesis and possibilities for new treatments.
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Affiliation(s)
- J Rasmuson
- Department of Clinical Microbiology, Infectious Diseases, Umeå University, 90185, Umeå, Sweden.
| | - J Pourazar
- Department of Public Health and Clinical Medicine, Medicine, Umeå University, Umeå, Sweden
| | - N Mohamed
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden
| | - K Lejon
- Department of Clinical Microbiology, Immunology, Umeå University, Umeå, Sweden
| | - M Evander
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden
| | - A Blomberg
- Department of Public Health and Clinical Medicine, Medicine, Umeå University, Umeå, Sweden
| | - C Ahlm
- Department of Clinical Microbiology, Infectious Diseases, Umeå University, 90185, Umeå, Sweden
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Mohamed N, Badr YA, El-Kader KMA. PVA-Coumarin Films: Materials for Optical Applications. J Compos Biodegradable Polym 2015; 3:41-45. [DOI: 10.12974/2311-8717.2015.03.02.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Pure Poly(vinylacohol) (PVA) and PVA-coum films with different concentrations were prepared by a casting technique. Optical absorption and mechanical properties were measured. The UV–Vis absorption spectra gave the same band positions but the absorption intensity increases with increasing coumarin concentration. The dependence of the absorption coefficient on the photon energy has been determined and the energy gaps and band tails were calculated. The topography of the surface was measured by atomic force microscope (AFM). It was found that Young’s modulus, the strength at the break and the band tail increase while the optical gaps for PVA-coum films decrease. RMS roughness of the surface for prepared films decreases as the coumarin concentration is increased. The obtained results illustrated that this material has promising applications in optical industries.
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Zaky E, Fouda E, Nabih E, Youssef O, Mohamed N. Assessment of the Impact of Secondhand Smoking On Children’s Mental Health; an Egyptian Study. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31927-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Alam MM, Hasnat MA, Rashed MA, Uddin SMN, Rahman MM, Amertharaj S, Ahmed N, Mohamed N. Nitrate detection activity of Cu particles deposited on pencil graphite by fast scan cyclic voltammetry. J Anal Chem 2014. [DOI: 10.1134/s1061934815010037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Amertharaj S, Hasnat M, Mohamed N. Electroreduction of nitrate ions at a platinum-copper electrode in an alkaline medium: Influence of sodium inositol phytate. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.128] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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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Mohamed N, Naidoo S. A review of child abuse and the role of the dental team in South Africa. SADJ 2014; 69:250-256. [PMID: 26548199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Hasnat M, Rashed M, Ben Aoun S, Uddin SN, Saiful Alam M, Amertharaj S, Majumder R, Mohamed N. Dissimilar catalytic trails of nitrate reduction on Cu-modified Pt surface immobilized on H+ conducting solid polymer. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2013.12.015] [Citation(s) in RCA: 12] [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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Stander S, Mulder-Van Staden S, Cheung TY, Dreyer WP, Mohamed N, Afrogheh A. Oral medicine case book 52: pleomorphic adenoma of the upper lip. SADJ 2013; 68:328-330. [PMID: 24133952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- S Stander
- Division of Oral Medicine and Periodontics, Faculty of Denristry, University of the Western Cape
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Mohamed N, Smit DP. Anti-allergic ophthalmic drugs in general practice: which, why and when? S Afr Fam Pract (2004) 2013. [DOI: 10.1080/20786204.2013.10874367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- N Mohamed
- Division of Ophthalmology, Faculty of Health Sciences, Stellenbosch University, and Tygerberg Hospital
| | - DP Smit
- Division of Ophthalmology, Faculty of Health Sciences, Stellenbosch University, and Tygerberg Hospital
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Stander S, Holmes H, Dreyer WP, Afrogheh A, Mohamed N, Hille J, Osman N. Oral medicine case book 49: Plasmablastic lymphoma. SADJ 2013; 68:184-186. [PMID: 23971300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- S Stander
- Division of Oral Medicine and Periodontics, University of the Western Cape
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Hudson APG, Harris AMP, Mohamed N, Joubert J. Use of the passive lower lingual arch in the management of anterior mandibular crowding in the mixed dentition. SADJ 2013; 68:114-119. [PMID: 23951775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Leeway space preservation in the mixed dentition is a well-documented method of space management. In the mandibular arch it may be saved for utilisation in the correction of minor anterior crowding by the placement of a passive lower lingual arch (LLA) during the transition from the mixed dentition to the permanent dentition.
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Affiliation(s)
- A P G Hudson
- Department of Orthodontics, Faculty of Dentistry, University of the Western Cape.
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Effat S, Mohamed N, Hussein H, Azzam H, Gouda A, Hassan H. 670 – ADHD symptoms: relation to omega 3 serum levels before and after supplementation. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)75914-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mohamed N, Ameer-Batcha W, Abdullah NK, Yusoff F. ILLICIT AND BENZODIAZEPINE DRUGS USE AMONG FATALLY INJURED DRIVERS IN URBAN AREAS OF KUALA LUMPAR. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580c.31] [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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Hashim H, Jamaluddin S, Mohamed N. UNDERSTANDING ANATOMICAL INJURY SEVERITY OF FATAL ROAD CRASHES. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040590u.1] [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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Hashad D, Mohamed N, Hashad MM. Luteinising hormone β-subunit gene Gly102Ser variant and oxidative stress biomarkers in Egyptian infertile males. Andrologia 2011; 44 Suppl 1:484-9. [PMID: 21806667 DOI: 10.1111/j.1439-0272.2011.01212.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
The aim of the present study was to evaluate the association of Glycine102Serine molecular variant of luteinising hormone (LH) β-subunit gene with infertility in Egyptian males and to assess the impact of oxidative stress in association with Glycine102Serine molecular variant on male infertility. Fifty men with idiopathic oligozoospermia were enrolled in the study. The control group consisted of 39 men with normal semen parameters and proven fertility. Variable oxidative status markers were evaluated. Glycine102Serine variant was investigated using restriction fragment length polymorphism-polymerase chain reaction. The study concluded that Glycine102Serine variant of LH β-subunit gene is relatively common among infertile Egyptian males and might be implicated in some Egyptian infertility cases. In addition, the association of this variant, in some cases, with disturbed oxidative status (decreased seminal plasma antioxidants' level and increased sperm lipid peroxidation) probably have a significant role in accentuation of infertility in those particular cases.
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Affiliation(s)
- D Hashad
- Faculty of Medicine, Department of Clinical Pathololgy, Alexandria University, Alexandria, Egypt.
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Shuid A, Siang L, Chin T, Muhammad N, Mohamed N, Soelaiman I. Acute and Subacute Toxicity Studies of Eurycoma longifolia in Male Rats. INT J PHARMACOL 2011. [DOI: 10.3923/ijp.2011.641.646] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mohamed N, Eviston DP, Quinton AE, Benzie RJ, Kirby AC, Peek MJ, Nanan RK. Smaller fetal thymuses in pre-eclampsia: a prospective cross-sectional study. Ultrasound Obstet Gynecol 2011; 37:410-415. [PMID: 21308839 DOI: 10.1002/uog.8953] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/25/2011] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To determine whether the thymus is smaller in fetuses of pre-eclamptic mothers than in those of normal controls. METHODS This was a cross-sectional, prospective, comparative study of sonographically determined fetal thymus measurements in 39 pregnancies with pre-eclampsia and 70 healthy pregnancies. RESULTS Both the diameter and the perimeter of the fetal thymus were smaller in pregnancies with pre-eclampsia than in healthy controls. The means of the thymus diameters were 28.6 ± 5.9 and 32.9 ± 4.5 mm and of thymus perimeters 80.9 ± 16.5 and 93.1 ± 16.6 mm for pre-eclamptic and healthy pregnancies, respectively (P < 0.001). General linear models showed that smaller fetal thymuses in pre-eclampsia were independent of gestational age, estimated fetal weight, small for gestational age status and antenatal steroid use. CONCLUSIONS Pre-eclampsia is associated with smaller fetal thymuses.
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Affiliation(s)
- N Mohamed
- Discipline of Obstetrics and Gynaecology, Sydney Medical School Nepean, The University of Sydney, Sydney, Australia
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Hudson APG, Harris AMP, Mohamed N. Maxillary canine management in the pre-adolescent: a guideline for general practitioners. SADJ 2010; 65:366-370. [PMID: 21133050] [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: 05/30/2023]
Abstract
This paper focuses on the identification of ectopic eruption patterns of the maxillary canines from the dental ages of approximately 8 to 12 years. The timing and suitability of interceptive treatment in pre-adolescents are discussed.
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Affiliation(s)
- A P G Hudson
- Department of Orthodontics, Faculty of Dentistry, University of the Western Cape, Private Bag X1, Tygerberg, 7505, South Africa.
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Abd El-Hadi, A, El-Minofi H, Mohamed N, El-Beih F. CONVERSION OF LACTOSE TO CALCIUM LACTOBIONATE BY SOME BACTERIAL SPECIES. Egyptian Journal of Agricultural Sciences 2010; 61:325-331. [DOI: 10.21608/ejarc.2010.215478] [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: 09/02/2023]
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Abstract
OBJECTIVES The treatment of urethral fistulas is quite challenging. We try to evaluate the results of a simple procedure in post-hypospadias urethral fistula repair. MATERIALS AND METHODS In the period from 2003 to 2007, 35 patients with 35 fistulas, with an average age 3.5 years [range: 2-8], were classified into coronal 12, mid-penile 13 and proximal 10. Based on the size they were grouped into two--either less than 5 mm (20) or more than 5 mm (15). Midline relaxing incision was used for large fistulas and then covered with a vascularised flap dartos-based flap [flip flap] in 19 and tunica vaginalis in 16. If a patient had more than one small fistula adjacent to each other, they were joined into a large single fistula and then repaired. RESULTS We have successfully repaired all urethrocutaneous fistulas using our protocol, with success rate [97.3] 1/35. CONCLUSIONS Dorsal midline urethral incision (DUMI), with dartos flip flap or tunica vaginalis coverage is an appropriate procedure to repair midline and proximal urethral fistulas.
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Affiliation(s)
- S Mohamed
- Department of Plastic and Paediatric Surgery, Zagazig University Hospitals, Zagazig, Egypt
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Galván DE, Botto F, Parma AM, Bandieri L, Mohamed N, Iribarne OO. Food partitioning and spatial subsidy in shelter-limited fishes inhabiting patchy reefs of Patagonia. J Fish Biol 2009; 75:2585-2605. [PMID: 20738509 DOI: 10.1111/j.1095-8649.2009.02453.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The diets of the most conspicuous reef-fish species from northern Patagonia, the carnivorous species Pseudopercis semifasciata, Acanthistius patachonicus, Pinguipes brasilianus and Sebastes oculatus were studied. Pinguipes brasilianus had the narrowest diet and most specialized feeding strategy, preying mostly on reef-dwelling organisms such as sea urchins, limpets, bivalves, crabs and polychaetes. The diet of A. patachonicus was characterized by the presence of reef and soft-bottom benthic organisms, mainly polychaetes, crabs and fishes. Pseudopercis semifasciata showed the broadest spectrum of prey items, preying upon reef, soft-bottom and transient organism (mainly fishes, cephalopods and crabs). All S. oculatus guts were empty, but stable-isotope analyses suggested that this species consumed small fishes and crabs. In general, P. brasilianus depended on local prey populations and ate different reef-dwelling prey than the other species. Pseudopercis semifasciata, A. patachonicus and probably S. oculatus, however, had overlapping trophic niches and consumed resources from adjacent environments. The latter probably reduces the importance of food as a limiting resource for these reef-fish populations, facilitating their coexistence in spite of their high trophic overlap.
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Affiliation(s)
- D E Galván
- Centro Nacional Patagónico, Boulevard Brown s/n (U9120ACV), Puerto Madryn, Chubut, Argentina.
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Moustafa H, Saadallah H, Mohamed N. P1.005 Neurologic soft signs in obsessive compulsive Egyptian patients and its correlation with the severity of obsessive compulsive symptoms. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70127-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hudson APG, Harris AMP, Mohamed N. The mixed dentition pantomogram: a valuable dental development assessment tool for the dentist. SADJ 2009; 64:480-483. [PMID: 20306868] [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: 05/29/2023]
Abstract
The mixed dentition pantomogram is routinely used in paediatric patients. This paper discusses the value of the pantomogram for early identification of problems in dental development during the mixed dentition stage. Aspects regarding dental maturity, leeway space, the sequence of eruption of the permanent teeth, anomalies and the development of the canines will be reviewed.
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Affiliation(s)
- A P G Hudson
- Department of Orthodontics, Faculty of Dentistry, University of the Western Cape, Private Bag X1, Tygerberg, 7505, South Africa.
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Abd El-Azim W, Ahmed S, Mohamed N. EFFECT OF WATER AND SALT STRESS ON THE GROWTH AND CHEMICAL COMPOSITION OF Peganum harmala L. UNDER RAS SUDR CONDITIONS. Egyptian Journal of Agricultural Sciences 2009; 60:0-0. [DOI: 10.21608/ejarc.2009.215928] [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: 09/02/2023]
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