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Coelho C, Fagundes da Silva J, Stilwell G. Suspected intoxication by Kikuyu grass ( Cenchrus clandestinus) of dairy cattle in the Azores, Portugal. N Z Vet J 2024; 72:155-161. [PMID: 38438184 DOI: 10.1080/00480169.2024.2319101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 02/01/2024] [Indexed: 03/06/2024]
Abstract
CASE HISTORY An outbreak of suspected Kikuyu grass (Cenchrus clandestinus) intoxication among dairy cattle occurred on the island of Terceira in the Azores (Portugal), in October 2022. The animals affected were non-lactating dairy cows and heifers from five small farms grazing (free or tethered) a Kikuyu-dominant pasture. Of the 29 animals exposed, 17 were affected, and eight (five heifers and three adult cows) died, resulting in a morbidity rate of 58%, a mortality rate of 28% and a case mortality rate of 47%. CLINICAL FINDINGS AND TREATMENT The clinical signs were non-specific and inconsistent, and included dry faeces, some with dark red blood; apathy and prostration; abdominal dilatation; tachycardia; tachypnoea; pale or jaundiced mucous membranes; sham drinking; sialorrhoea; and moderate to severe dehydration. Symptomatic treatment was provided but was ineffective. Haematology and serum biochemistry revealed an acute inflammatory leukogram, increased alkaline phosphatase (ALP) activity, decreased gamma-glutamyl transferase (GGT) activity, and azotaemia.The most consistent necropsy findings were haemorrhages in the epicardium and endocardium, an enlarged liver with rounded edges, non-perforated abomasal ulcers, and haemorrhagic lesions in the small and large intestines. Histopathology indicated myocarditis, hepatitis, interstitial nephritis, enteritis and colitis.Several fungal species were isolated from grass samples taken from affected pastures including several Fusarium spp., the genus implicated in Kikuyu toxicosis. Immediate removal of the animals from the pasture with Kikuyu was the only measure that prevented new cases and resulted in the recovery of some of the less affected animals. DIAGNOSIS The epidemiological features of this outbreak and the clinical signs and micro- and macroscopic lesions observed were highly suggestive of Kikuyu grass poisoning. CLINICAL RELEVANCE Although the weather conditions varied from other published cases, the grazing conditions (almost exclusive Kikuyu grass) and the post-mortem findings were very similar to those described in the literature, particularly the haemorrhages in the epicardium and endocardium. Kikuyu grass is very invasive and presents many desirable characteristics as cattle feed. Thus, an increase in cases of intoxication may be expected. Practitioners and farmers in areas where Kikuyu grass is abundant should be aware of the potential risks of grazing cattle exclusively on these pastures. They should also be aware of the early and subtle signs of Kikuyu intoxication to allow for timely removal of the animals from pasture.
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Affiliation(s)
- C Coelho
- Animal Behaviour and Welfare Laboratory, Centre of Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Secção de Assistência Veterinária, Unicol - Cooperativa Agrícola, CRL, Angra do Heroísmo, Portugal
| | - J Fagundes da Silva
- Secção de Assistência Veterinária, Unicol - Cooperativa Agrícola, CRL, Angra do Heroísmo, Portugal
| | - G Stilwell
- Animal Behaviour and Welfare Laboratory, Centre of Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Faculty of Veterinary Medicine Faculty, University of Lisbon, Lisbon, Portugal
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Sousa Nunes F, Coelho C, Vilela E, Fontes-Carvalho R, Neves F. A Starr-Edwards Prothesis can Last Forever (but its sutures may not). Hellenic J Cardiol 2024:S1109-9666(24)00072-1. [PMID: 38554833 DOI: 10.1016/j.hjc.2024.03.011] [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] [Received: 02/14/2024] [Revised: 03/13/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024] Open
Affiliation(s)
- F Sousa Nunes
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia / Espinho, Portugal.
| | - C Coelho
- Cardiology Department, Hospital Distrital de Santarém, Portugal
| | - E Vilela
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia / Espinho, Portugal
| | - R Fontes-Carvalho
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia / Espinho, Portugal
| | - F Neves
- Cardiac Surgery Department, Centro Hospitalar de Vila Nova de Gaia / Espinho, Portugal
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V, Al Mahmeed WAR, Kzhdryan H, Dumont C, Geppert A, Bajramovic NS, Cader FA, Beauloye C, Quesada D, Hlinomaz O, Liebetrau C, Marandi T, Shokry K, Bueno H, Kovacevic M, Crnomarkovic B, Cankovic M, Dabovic D, Jarakovic M, Pantic T, Trajkovic M, Pupic L, Ruzicic D, Cvetanovic D, Mansourati J, Obradovic I, Stankovic M, Loh PH, Kong W, Poh KK, Sia CH, Saw K, Liška D, Brozmannová D, Gbur M, Gale CP, Maxian R, Kovacic D, Poznic NG, Keric T, Kotnik G, Cercek M, Steblovnik K, Sustersic M, Cercek AC, Djokic I, Maisuradze D, Drnovsek B, Lipar L, Mocilnik M, Pleskovic A, Lainscak M, Crncic D, Nikojajevic I, Tibaut M, Cigut M, Leskovar B, Sinanis T, Furlan T, Grilj V, Rezun M, Mateo VM, Anguita MJF, Bustinza ICM, Quintana RB, Cimadevilla OCF, Fuertes J, Lopez F, Dharma S, Martin MD, Martinez L, Barrabes JA, Bañeras J, Belahnech Y, Ferreira-Gonzalez I, Jordan P, Lidon RM, Mila L, Sambola A, Orvin K, Sionis A, Bragagnini W, Cambra AD, Simon C, Burdeus MV, Ariza-Solé A, Alegre O, Alsina M, Ferrando 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Silinskiene D, Simbelyte T, Staigyte J, Philippe F, Degrell P, Camus E, Ahmad WAW, Kassim ZA, Xuereb RG, Buttigieg LL, Camilleri W, Pllaha E, Xuereb S, Popovici M, Ivanov V, Plugaru A, Moscalu V, Popovici I, Abras M, Ciobanu L, Litvinenco N, Fuior S, Dumanschi C, Ivanov M, Danila T, Grib L, Filimon S, Cardaniuc L, Batrinac A, Tasnic M, Cozma C, Revenco V, Sorici G, Dagva M, Choijiljav G, Dandar E, Khurelbaatar MU, Tsognemekh B, Appelman Y, Den Hartog A, Kolste HJT, Van Den Buijs D, Van'T Hof A, Pustjens T, Houben V, Kasperski I, Ten Berg J, Azzahhafi J, Bor W, Yin DCP, Mbakwem A, Amadi C, Kushimo O, Kilasho M, Oronsaye E, Bakracheski N, Bashuroska EK, Mojsovska V, Tupare S, Dejan M, Jovanoska J, Razmoski D, Marinoski T, Antovski A, Jovanovski Z, Kocho S, Markovski R, Ristovski V, Samir AB, Biserka S, Kalpak O, Peovska IM, Taleska BZ, Pejkov H, Busljetik O, Zimbakov Z, Grueva E, Bojovski I, Tutic M, Poposka L, Vavlukis M, Al-Riyami A, Nadar SK, Abdelmottaleb W, Ahmed S, Mujtaba MS, Al-Mashari S, Al-Riyami H, Laghari AH, Faheem O, Ahmed SW, Qamar N, Furnaz S, Kazmi K, Saghir T, Aneel A, Asim A, Madiha F, Sobkowicz B, Tycinska A, Kazimierczyk E, Szyszkowska A, Mizia-Stec K, Wybraniec M, Bednarek A, Glowacki K, Prokopczuk J, Babinski W, Blachut A, Kosiak M, Kusinska A, Samborski S, Stachura J, Szastok H, Wester A, Bartoszewska D, Sosnowska-Pasiarska B, Krzysiek M, Legutko J, Nawrotek B, Kasprzak JD, Klosinska M, Wiklo K, Kurpesa M, Rechcinski T, Cieslik-Guerra U, Gierlotka M, Bugajski J, Feusette P, Sacha J, Przybylo P, Krzesinski P, Ryczek R, Karasek A, Kazmierczak-Dziuk A, Mielniczuk M, Betkier-Lipinska K, Roik M, Labyk A, Krakowian M, Machowski M, Paczynska M, Potepa M, Pruszczyk P, Budaj A, Ambroziak M, Omelanczuk-Wiech E, Torun A, Opolski G, Glowczynska R, Fojt A, Kowalik R, Huczek Z, Jedrzejczyk S, Roleder T, Brust K, Gasior M, Desperak P, Hawranek M, Farto-Abreu P, Santos M, Baptista S, Brizida L, Faria D, Loureiro J, Magno P, Monteiro C, Nédio M, Tavares J, Sousa C, Almeida I, Almeida S, Miranda H, Santos H, Santos AP, Goncalves L, Monteiro S, Baptista R, Ferreira C, Ferreira J, Goncalves F, Lourenço C, Monteiro P, Picarra B, Santos AR, Guerreiro RA, Carias M, Carrington M, Pais J, de Figueiredo MP, Rocha AR, Mimoso J, De Jesus I, Fernandes R, Guedes J, Mota T, Mendes M, Ferreira J, Tralhão A, Aguiar CT, Strong C, Da Gama FF, Pais G, Timóteo AT, Rosa SAO, Mano T, Reis J, Selas M, Mendes DE, Satendra M, Pinto P, Queirós C, Oliveira I, Reis L, Cruz I, Fernandes R, Torres S, Luz A, Campinas A, Costa R, Frias A, Oliveira M, Martins V, Castilho B, Coelho C, Moura AR, Cotrim N, Dos Santos RC, Custodio P, Duarte R, Gomes R, Matias F, Mendonca C, Neiva J, Rabacal C, Almeida AR, Caeiro D, Queiroz P, Silva G, Pop-Moldovan AL, Darabantiu D, Mercea S, Dan GA, Dan AR, Dobranici M, Popescu RA, Adam C, Sinescu CJ, Andrei CL, Brezeanu R, Samoila N, Baluta MM, Pop D, Tomoaia R, Istratoaie O, Donoiu I, Cojocaru A, Oprita OC, Rocsoreanu A, Grecu M, Ailoaei S, Popescu MI, Cozma A, Babes EE, Rus M, Ardelean A, Larisa R, Moisi M, Ban E, Buzle A, Filimon G, Dobreanu D, Lupu S, Mitre A, Rudzik R, Sus I, Opris D, Somkereki C, Mornos C, Petrescu L, Betiu A, Volcescu A, Ioan O, Luca C, Maximov D, Mosteoru S, Pascalau L, Roman C, Brie D, Crisan S, Erimescu C, Falnita L, Gaita D, Gheorghiu M, Levashov S, Redkina M, Novitskii N, Dementiev E, Baglikov A, Zateyshchikov D, Zubova E, Rogozhina A, Salikov A, Nikitin I, Reznik EV, Komissarova MS, Shebzukhova M, Shitaya K, Stolbova S, Larina V, Akhmatova F, Chuvarayan G, Arefyev MN, Averkov OV, Volkova AL, Sepkhanyan MS, Vecherko VI, Meray I, Babaeva L, Goreva L, Pisaryuk A, Potapov P, Teterina M, Ageev F, Silvestrova G, Fedulaev Y, Pinchuk T, Staroverov I, Kalimullin D, Sukhinina T, Zhukova N, Ryabov V, Kruchinkina E, Vorobeva D, Shevchenko I, Budyak V, Elistratova O, Fetisova E, Islamov R, Ponomareva E, Khalaf H, Shaimaa AA, Kamal W, Alrahimi J, Elshiekh A, Balghith M, Ahmed A, Attia N, Jamiel AA, Potpara T, Marinkovic M, Mihajlovic M, Mujovic N, Kocijancic A, Mijatovic Z, Radovanovic M, Matic D, Milosevic A, Savic L, Subotic I, Uscumlic A, Zlatic N, Antonijevic J, Vesic O, Vucic R, Martinovic SS, Kostic T, Atanaskovic V, Mitic V, Stanojevic D, Petrovic M. Cohort profile: the ESC EURObservational Research Programme Non-ST-segment elevation myocardial infraction (NSTEMI) Registry. Eur Heart J Qual Care Clin Outcomes 2022; 9:8-15. [PMID: 36259751 DOI: 10.1093/ehjqcco/qcac067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/12/2022]
Abstract
AIMS The European Society of Cardiology (ESC) EURObservational Research Programme (EORP) Non-ST-segment elevation myocardial infarction (NSTEMI) Registry aims to identify international patterns in NSTEMI management in clinical practice and outcomes against the 2015 ESC Guidelines for the management of acute coronary syndromes in patients presenting without ST-segment-elevation. METHODS AND RESULTS Consecutively hospitalised adult NSTEMI patients (n = 3620) were enrolled between 11 March 2019 and 6 March 2021, and individual patient data prospectively collected at 287 centres in 59 participating countries during a two-week enrolment period per centre. The registry collected data relating to baseline characteristics, major outcomes (in-hospital death, acute heart failure, cardiogenic shock, bleeding, stroke/transient ischaemic attack, and 30-day mortality) and guideline-recommended NSTEMI care interventions: electrocardiogram pre- or in-hospital, pre-hospitalization receipt of aspirin, echocardiography, coronary angiography, referral to cardiac rehabilitation, smoking cessation advice, dietary advice, and prescription on discharge of aspirin, P2Y12 inhibition, angiotensin converting enzyme inhibitor (ACEi)/angiotensin receptor blocker (ARB), beta-blocker, and statin. CONCLUSION The EORP NSTEMI Registry is an international, prospective registry of care and outcomes of patients treated for NSTEMI, which will provide unique insights into the contemporary management of hospitalised NSTEMI patients, compliance with ESC 2015 NSTEMI Guidelines, and identify potential barriers to optimal management of this common clinical presentation associated with significant morbidity and mortality.
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Affiliation(s)
- Ramesh Nadarajah
- Leeds Institute for Cardiovascular and Metabolic Medicine, University of Leeds, LS2 9JT Leeds, UK.,Leeds Institute of Data Analytics, University of Leeds, LS2 9JT Leeds, UK.,Department of Cardiology, Leeds Teaching Hospitals NHS Trust, LS1 3EX Leeds, UK
| | - Peter Ludman
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Yolande Appelman
- Department of Cardiology, Amsterdam UMC-Vrije Universiteit, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Salvatore Brugaletta
- Hospital Clinic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Andrzej Budaj
- Department of Cardiology, Center of Postgraduate Medical Education, Grochowski Hospital, Warsaw, Poland
| | - Hector Bueno
- Cardiology Department, Hospital Universitario 12 de Octubre and Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain.,Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Kurt Huber
- 3rd Medical Department, Cardiology and Intensive Care Medicine, Clinic Ottakring (Wilhelminenhospital), Vienna, Austria.,Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Vijay Kunadian
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Cardiothoracic Centre, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Sergio Leonardi
- University of Pavia, Pavia, Italy.,Fondazione IRCCS Policlinico S.Matteo, Pavia, Italy
| | - Maddalena Lettino
- Cardio-Thoracic and Vascular Department, San Gerardo Hospital, ASST-Monza, Monza, Italy
| | - Dejan Milasinovic
- Department of Cardiology, University Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Chris P Gale
- Leeds Institute for Cardiovascular and Metabolic Medicine, University of Leeds, LS2 9JT Leeds, UK.,Leeds Institute of Data Analytics, University of Leeds, LS2 9JT Leeds, UK.,Department of Cardiology, Leeds Teaching Hospitals NHS Trust, LS1 3EX Leeds, UK
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de Marsillac PF, Cortez de Almeida RF, Machado CJ, Piraccini BM, Starace M, Tosti A, Vincenzi C, Kobzei K, Iorizzo M, Alves LD, Blanco A, Coelho C, Saceda-Corralo D, D'Atri G, Benez M, Ramos PM, Baja S, Tortelly VD, Frattini S, Melo DF. Clinical, epidemiological, trichoscopic and histopathological features of linear morphea on the scalp. J Eur Acad Dermatol Venereol 2022; 36:e892-e895. [PMID: 35694874 DOI: 10.1111/jdv.18323] [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] [Received: 03/30/2022] [Accepted: 06/03/2022] [Indexed: 11/29/2022]
Affiliation(s)
- P F de Marsillac
- Department of Dermatology, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - R F Cortez de Almeida
- Department of Dermatology, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - C J Machado
- Preventive and Social Medicine Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - B M Piraccini
- Dermatology - IRCCS Policlinico di Sant'Orsola - Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - M Starace
- Dermatology - IRCCS Policlinico di Sant'Orsola - Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - A Tosti
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, Miami, Florida, USA
| | - C Vincenzi
- Department of Dermatology, Private Hospital Nigrisoli, Bologna, Italy
| | - K Kobzei
- Kyiv Medical University, Kyiv, Ukraine
| | - M Iorizzo
- Private Dermatology Practice, Bellinzona, Lugano, Switzerland
| | - L D Alves
- Department of Tropical Medicine and Dermatology, Federal University of Goiás, Goiânia, GO, Brazil
| | - A Blanco
- Department of Dermatology, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - C Coelho
- Department of Dermatology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - D Saceda-Corralo
- Dermatology Department, Trichology Unit, Ramón y Cajal University Hospital, Instituto Ramón y Cajal de Investigación Sanitaria, University of Alcalá, Madrid, Spain
| | - G D'Atri
- GrupoMCI (Integral Hair Medicine), Private Dermatology Practice, Buenos Aires, Argentina
| | - M Benez
- Department of Dermatology, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - P M Ramos
- Department of Dermatology and Radiotherapy, São Paulo State University, Botucatu, SP, Brazil
| | - S Baja
- Private Dermatology Practice, Resende, RJ, Brazil
| | - V D Tortelly
- Department of Dermatology, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - S Frattini
- Mental Health Department, Guelph General Hospital, Guelph, Ontario, Canada
| | - D F Melo
- Department of Dermatology, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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5
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du Fay de Lavallaz J, Badertscher P, Zimmermann T, Nestelberger T, Walter J, Strebel I, Coelho C, Miró Ò, Salgado E, Christ M, Geigy N, Cullen L, Than M, Javier Martin-Sanchez F, Di Somma S, Frank Peacock W, Morawiec B, Wussler D, Keller DI, Gualandro D, Michou E, Kühne M, Lohrmann J, Reichlin T, Mueller C. Early standardized clinical judgement for syncope diagnosis in the emergency department. J Intern Med 2021; 290:728-739. [PMID: 33755279 DOI: 10.1111/joim.13269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/16/2020] [Accepted: 01/08/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND The diagnosis of cardiac syncope remains a challenge in the emergency department (ED). OBJECTIVE Assessing the diagnostic accuracy of the early standardized clinical judgement (ESCJ) including a standardized syncope-specific case report form (CRF) in comparison with a recommended multivariable diagnostic score. METHODS In a prospective international observational multicentre study, diagnostic accuracy for cardiac syncope of ESCJ by the ED physician amongst patients ≥ 40 years presenting with syncope to the ED was directly compared with that of the Evaluation of Guidelines in Syncope Study (EGSYS) diagnostic score. Cardiac syncope was centrally adjudicated independently of the ESCJ or conducted workup by two ED specialists based on all information available up to 1-year follow-up. Secondary aims included direct comparison with high-sensitivity cardiac troponin I (hs-cTnI) and B-type natriuretic peptide (BNP) concentrations and a Lasso regression to identify variables contributing most to ESCJ. RESULTS Cardiac syncope was adjudicated in 252/1494 patients (15.2%). The diagnostic accuracy of ESCJ for cardiac syncope as quantified by the area under the curve (AUC) was 0.87 (95% CI: 0.84-0.89), and higher compared with the EGSYS diagnostic score (0.73 (95% CI: 0.70-0.76)), hs-cTnI (0.77 (95% CI: 0.73-0.80)) and BNP (0.77 (95% CI: 0.74-0.80)), all P < 0.001. Both biomarkers (alone or in combination) on top of the ESCJ significantly improved diagnostic accuracy. CONCLUSION ESCJ including a standardized syncope-specific CRF has very high diagnostic accuracy and outperforms the EGSYS score, hs-cTnI and BNP.
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Affiliation(s)
- J du Fay de Lavallaz
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - P Badertscher
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Department of Cardiology, Medical University of South Carolina, Charleston, SC, USA
| | - T Zimmermann
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - T Nestelberger
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - J Walter
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - I Strebel
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - C Coelho
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - Ò Miró
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Hospital Clinic, Barcelona, Catalonia, Spain
| | - E Salgado
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Hospital Clinic, Barcelona, Catalonia, Spain
| | - M Christ
- Department of Emergency Medicine, Kantonsspital, Luzern, Switzerland
| | - N Geigy
- Department of Emergency Medicine, Hospital of Liestal, Liestal, Switzerland
| | - L Cullen
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Royal Brisbane & Women's Hospital, Herston, Australia
| | - M Than
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Christchurch Hospital, Christchurch, New Zealand
| | - F Javier Martin-Sanchez
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, Spain
| | - S Di Somma
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant'Andrea Hospital, Rome, Italy
| | - W Frank Peacock
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,Department of Emergency Medicine, Baylor College of Medicine, Houston, TX, USA
| | - B Morawiec
- GREAT - Global Research on Acute Conditions Team, Roma, Italy.,2nd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
| | - D Wussler
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - D I Keller
- Emergency Department, University Hospital Zurich, Zurich, Switzerland
| | - D Gualandro
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - E Michou
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - M Kühne
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - J Lohrmann
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
| | - T Reichlin
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,Department of Cardiology, Inselspital University Hospital Bern, University of Bern, Bern, Switzerland
| | - C Mueller
- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT - Global Research on Acute Conditions Team, Roma, Italy
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- From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
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Maia BR, Coelho C, Marques M, Carvalho F. Associations between social anxiety and avoidance, attachment styles and parental marital status, in late adolescence. Eur Psychiatry 2021. [PMCID: PMC9471513 DOI: 10.1192/j.eurpsy.2021.484] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionThe relation between insecure general attachment and social anxiety has long been established.ObjectivesTo explore the associations between social interaction and performance anxiety and avoidance, attachment styles, and parental marital status.Methods146 Portuguese adolescents, with a mean age of 18.99 years old (SD = .848; range: 18-20), filled in the Social Interaction and Performance Anxiety and Avoidance Scale and the Experiences in Close Relationships-Relationship Structures Questionnaire.ResultsDistress/Anxiety was correlated with avoidance attachment to mother and father (rs = .17*, p = .04; rs = .18*, p = .03), to anxious attachment to romantic partner (rs = .21*, p = .01), and to anxious and avoidance attachment to best friend (rs = .25**, p = .00; (rs = .17*, p = .035). Avoidance was significantly correlated with avoidance to father and to romantic partner (rs = .18*, p = .03), and to anxious and avoidance attachment to best friend (rs = .21**, p = .009; rs = .18*, p = .03). A significant difference was found in avoidance attachment to father X2 = 10.246 (4, n = 146), p = .036, by parental marital status, with the adolescents with single/divorced parents presenting a higher mean score (Md = 111.10; Md = 82.93) than the other groups.ConclusionsDistress/anxiety seems to be associated with more close relationships, and a single/divorced status with Avoidance. Longitudinal studies are needed to explore if insecure attachment to parents predicts insecure extra-familiar attachment, and to explore the long-term effects of parental marital status.
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Ali K, McColl E, Tredwin C, Hanks S, Coelho C, Witton R. Addressing racial inequalities in dental education: decolonising the dental curricula. Br Dent J 2021; 230:165-169. [PMID: 33574542 PMCID: PMC7877507 DOI: 10.1038/s41415-020-2598-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/16/2020] [Indexed: 11/08/2022]
Abstract
The aim of this paper is to highlight the impact of racial disparities on the educational experiences of Black and minority ethnic students in healthcare education. Attainment gaps and barriers to career progression for minority ethnic home students in the United Kingdom have been recognised for decades, but little progress has been made to address these issues. Students and staff in higher education have been campaigning for 'decolonisation of the curriculum' to improve inclusivity and representation. These trends are being mirrored in medical education and there is growing recognition to decolonise the medical curricula. This would improve the educational experience and attainment of minority ethnic students and doctors, and would also help to address disparities in healthcare provision for minority ethnic patients. The context for decolonisation of the dental curricula is provided, followed by a discussion on the benefits, challenges and strategies for such decolonisation.
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Affiliation(s)
- Kamran Ali
- University of Plymouth, Peninsula Dental School, C504 Portland Square, Plymouth, PL4 8AA, Devon, UK.
| | | | - Christopher Tredwin
- University of Plymouth, Peninsula Dental School, The John Bull Building, Plymouth Science Park, Plymouth, PL6 8BU, Devon, UK
| | - Sally Hanks
- University of Plymouth, Peninsula Dental School, The John Bull Building, Plymouth Science Park, Plymouth, PL6 8BU, Devon, UK
| | - Catherine Coelho
- University of Plymouth, Peninsula Dental School, C504 Portland Square, Plymouth, PL4 8AA, Devon, UK
| | - Robert Witton
- Plymouth University Schools of Medicine and Dentistry, Social Engagement and Community-Based Dentistry, The John Bull Building, Plymouth Science Park, Plymouth, PL6 8BU, Devon, UK
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8
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Zahra D, Bennett J, Belfield L, Ali K, Mcilwaine C, Bruce M, Jones G, Brookes ZL, Coelho C, Zaric S. Effect of constant versus variable small-group facilitators on students' basic science knowledge in an enquiry-based dental curriculum. Eur J Dent Educ 2019; 23:448-454. [PMID: 31250948 DOI: 10.1111/eje.12451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 06/24/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION The role of small-group facilitators is of pivotal importance for the success of curricula based on active learning. Disorganised tutorial processes and superficial study of the problem have been identified as main hindering factors for students' learning. The aim of this study was to evaluate the influence of consistency of facilitation on students' performance in knowledge-based basic science assessments in a hybrid, enquiry-based (EBL) undergraduate dental curriculum. MATERIALS AND METHODS This was a retrospective study of 519 first- and second-year undergraduate dental students, enrolled at Peninsula Dental School between 2013 and 2018. Twice in each academic year, students sat a 60-item single-best-answer, multiple-choice examination. Percentage and Z-scores were compared between students whose EBL groups had the same facilitator throughout the academic year, and those whose EBL group was facilitated by different members of staff. All EBL facilitators were dentally qualified but with different levels of expertise in basic dental sciences, prior EBL facilitation, involvement in the curriculum design and university affiliation. RESULTS No statistically significant difference was observed in the percentage or Z-scores of students whose EBL sessions were supported by consistent or variable facilitators in any of the 18 MCQ tests. Z-scores of first-year students were more variable than for second-year students. In addition, pairwise comparisons revealed no statistically significant differences in students' Z-scores between any of the permanent facilitators' groups. CONCLUSIONS The results of our study may influence the design and delivery of enquiry-based curricula as well as human resources management by shifting the focus from maintaining facilitator consistency to ensuring comparable training and approaches across facilitators.
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Affiliation(s)
- Daniel Zahra
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Jon Bennett
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Louise Belfield
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Kamran Ali
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Clare Mcilwaine
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Malcolm Bruce
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Gill Jones
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Zoe L Brookes
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Catherine Coelho
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Svetislav Zaric
- Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
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9
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Abstract
Introduction: Academic remediation offered after failure in a knowledge-based progress-test assessment is voluntary and involves student-centered individualized support that helps students to learn most effectively for themselves. This paper explores whether accepting or declining the offer of academic remediation given to struggling students impacts their outcomes both short-term and longitudinally. Method: Data was collated from 2015-16, 2016-17, and 2017-18 and included all students offered academic remediation in the third, fourth, and fifth years of a five-year Dentistry program. Z-scores for each stage and test were calculated and centered on a triggering point; the point at which the offer of remediation was made. These students' average performance post-trigger test and longitudinal performance were analyzed. Results: While performance for both groups significantly improved for the immediate post-trigger test after academic remediation, those that accepted remediation sustained longitudinal improvements across subsequent tests compared to those that declined remediation. Discussion: Through the academic remediation support process students appear to increase their mastery of "learning to learn" and are able to implement sustainable effective learning strategies to carry with them throughout their program. Conclusion: Students who accept academic remediation maintain a more successful academic profile compared to those that do not take advantage of this.
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Affiliation(s)
- Catherine Coelho
- a Peninsula Dental School , University of Plymouth , Plymouth , UK
| | - Daniel Zahra
- a Peninsula Dental School , University of Plymouth , Plymouth , UK
| | - Kamran Ali
- a Peninsula Dental School , University of Plymouth , Plymouth , UK
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10
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Ferreira P, Cerqueira NMFSA, Coelho C, Fernandes PA, Romão MJ, Ramos MJ. New insights about the monomer and homodimer structures of the human AOX1. Phys Chem Chem Phys 2019; 21:13545-13554. [DOI: 10.1039/c9cp01040h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We conducted MD simulations to provide a comprehensive study on the human aldehyde oxidase and on the impact that the allosteric inhibitor thioridazine and malonate ions have on its structure, particularly on the catalytic tunnel.
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Affiliation(s)
- P. Ferreira
- UCIBIO@REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade do Porto
- 4169-007 Porto
| | - N. M. F. S. A. Cerqueira
- UCIBIO@REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade do Porto
- 4169-007 Porto
| | - C. Coelho
- UCIBIO@REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica
| | - P. A. Fernandes
- UCIBIO@REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade do Porto
- 4169-007 Porto
| | - M. J. Romão
- UCIBIO@REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica
| | - M. J. Ramos
- UCIBIO@REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade do Porto
- 4169-007 Porto
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11
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Coelho C, Foret C, Bazin C, Leduc L, Hammada M, Inácio M, Bedell JP. Bioavailability and bioaccumulation of heavy metals of several soils and sediments (from industrialized urban areas) for Eisenia fetida. Sci Total Environ 2018; 635:1317-1330. [PMID: 29710585 DOI: 10.1016/j.scitotenv.2018.04.213] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 04/13/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
Soils and sediments are susceptible to anthropogenic contamination with Metallic Trace Elements (MTEs) and it can present some risks to ecosystems and human health. The levels of Cd, Cu, Fe, Ni, Pb and Zn were assessed in soils (C, G, K, L) from Estarreja (Portugal) and sediments from a stormwater basin in Lyon (DJG), a harbour (LDB) and a Rhône river site (TRS) (France). An ecotoxicological study was performed with Eisenia fetida (E. fetida) to infer about potential transfer risks to the soil invertebrates. To assess risks associated with MTEs contamination, it is important to know their total concentrations, fractionation and the potential available fractions. CaCl2, DTPA and NaOAc extractions were performed to assess the extractable and available MTEs fractions. The studied sediments were much more contaminated than the soils for all the MTEs analysed. The trace elements fraction linked with DTPA extraction shows higher values when compared with the NaOAc and the CaCl2 pools. Low mortality effects were recorded in the tests with E. fetida. The MTEs levels in soils and sediments and the concentrations bioaccumulated in adult earthworms contributed to a reduction in the number of juveniles produced. E. fetida adults and juveniles accumulated ETMs as follows: Cd > Cu = Zn > Ni > Pb > Fe. Determined BAFs were mostly lower than 1 with some higher values for Cd, Cu and Zn. Calculated SET and ERITME indexes allowed to classify the samples from the most to the less toxic for E. fetida as: LDB > DJG > L > G > C > K > TRS. Despite this order of toxicity, the earthworms exposed to the sediment TRS presented the lowest reproduction rate. The combination of "chemical" measurements with the calculation of BAFs, but especially SET and ERITME indexes can be a useful tool in risk assessment.
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Affiliation(s)
- C Coelho
- Université de Lyon, CNRS, UMR 5023 LEHNA, Université Lyon 1, ENTPE, 2 rue Maurice Audin, Vaulx-en-Velin F-69518, France.
| | - C Foret
- Université de Lyon, CNRS, UMR 5023 LEHNA, Université Lyon 1, ENTPE, 2 rue Maurice Audin, Vaulx-en-Velin F-69518, France
| | - C Bazin
- INSAVALOR - PROVADEMSE, 20 Avenue Albert Einstein, F-69621 Villeurbanne, France
| | - L Leduc
- Université de Lyon, CNRS, UMR 5023 LEHNA, Université Lyon 1, ENTPE, 2 rue Maurice Audin, Vaulx-en-Velin F-69518, France; INSAVALOR - PROVADEMSE, 20 Avenue Albert Einstein, F-69621 Villeurbanne, France
| | - M Hammada
- Université de Lyon, CNRS, UMR 5023 LEHNA, Université Lyon 1, ENTPE, 2 rue Maurice Audin, Vaulx-en-Velin F-69518, France
| | - M Inácio
- GEOBIOTEC Research Centre, Department of Geosciences, University of Aveiro, Portugal.
| | - J P Bedell
- Université de Lyon, CNRS, UMR 5023 LEHNA, Université Lyon 1, ENTPE, 2 rue Maurice Audin, Vaulx-en-Velin F-69518, France
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12
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Coelho C, Pooler J, Lloyd H. Using patients as educators for communication skills: Exploring dental students' and patients' views. Eur J Dent Educ 2018; 22:e291-e299. [PMID: 28714531 DOI: 10.1111/eje.12282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/13/2017] [Indexed: 06/07/2023]
Abstract
TITLE A qualitative study to explore the issues for patients and students when giving feedback on the communication of dental students. OBJECTIVES The Department of Health and National Institute for Health Research are committed to involving patients in improving clinical education, research and service delivery. Yet, there is a limited body of evidence on the perceptions of patients when asked to be involved in this way, and specifically when asked to provide feedback on the communication skills of dental students. This study seeks to address this gap and heighten the understanding of the issues faced by patients when asked to be involved in clinical education. METHODS Data were collected using focus groups with dental students (n=10) and patients (n=8) being treated by these students. Both groups were asked about their thoughts, feelings and beliefs about patients being asked to provide feedback on the communication skills of dental students. Data analysis involved inductive thematic analysis of transcribed audio recordings. RESULTS Four themes emerged from the data: "legitimacy," "co-educators," "maintaining the equilibrium of the patient-student relationship" and the "timing of patient feedback." Support for involving patients in giving feedback on students' communication skills was established, with patients considering they were best placed to comment on the communication skills of dental students. Patients and students do not want to provide feedback alone and want support to assist them, especially if feedback was negative. Issues of anonymity, confidentiality and ownership of the feedback process were worrisome, and the positioning of patient feedback in the programme was seen as critical. CONCLUSIONS Patients and students are willing to engage in patient feedback on students' communication skills, and with support and training, the concerns around this are not insurmountable and the benefits could potentially profit both groups. These findings have resonance with other healthcare educators when using patients as educators in the development of communication skills.
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Affiliation(s)
- C Coelho
- Clinical Dental Education, Peninsula Dental School, University of Plymouth, Plymouth, UK
| | - J Pooler
- Plymouth University Peninsula Schools of Medicine & Dentistry, Plymouth, UK
| | - H Lloyd
- Clinical Psychology, Peninsula Dental School, University of Plymouth, Plymouth, UK
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13
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Cachada A, Coelho C, Gavina A, Dias AC, Patinha C, Reis AP, da Silva EF, Duarte AC, Pereira R. Availability of polycyclic aromatic hydrocarbons to earthworms in urban soils and its implications for risk assessment. Chemosphere 2018; 191:196-203. [PMID: 29035791 DOI: 10.1016/j.chemosphere.2017.10.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/22/2017] [Accepted: 10/02/2017] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a global problem, and in urban soils they can be found at potentially hazard levels. Nevertheless, the real risks that these contaminants pose to the environment are not well known, since the bioavailability of PAHs in urban soils has been poorly studied. Therefore, the bioavailability of PAHs in some selected urban soils from Lisbon (Portugal) was evaluated. Moreover, the applicability of a first screening phase based on total contents of PAHs was assessed. Results show that bioavailability of PAHs is reduced (low levels in earthworms, low accumulation percentages, and low biota-to-soil accumulation factors values), especially in more contaminated soils. The aging of these compounds explains this low availability, and confirms the generally accepted assumption that accumulation of PAHs in urban areas is mostly related with a long-term deposition of contaminated particles. The comparison of measured PAHs concentrations in earthworm tissues with the ones predicted based on theoretical models, reinforce that risks based on total levels are overestimated, but it can be a good initial approach for urban soils. This study also highlights the need of more reliable ecotoxicological data.
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Affiliation(s)
- A Cachada
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - C Coelho
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A Gavina
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - A C Dias
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - C Patinha
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A P Reis
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - E Ferreira da Silva
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A C Duarte
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - R Pereira
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
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14
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Mesquita JR, Esteves F, Santos C, Mega C, Coelho C, Cruz R, Vala H, Vasconcelos-Nóbrega C. ABC series on diagnostic parasitology part 1: the Willis method. ACTA ACUST UNITED AC 2017. [DOI: 10.12968/vetn.2017.8.7.398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- JR Mesquita
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Investigação em Biodiversidade e Recursos Genéticos/Universidade do Porto (CIBIO), Campus Agrário de Vairão, Vairão, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - F Esteves
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - C Santos
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - C Mega
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - C Coelho
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - R Cruz
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
| | - H Vala
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
- Centro de Investigação e Tecnologias Agroambientais e Biológica (CITAB), Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - C Vasconcelos-Nóbrega
- Escola Superior Agrária de Viseu (ESAV), Instituto Politécnico de Viseu, Viseu, Portugal
- Centro de Estudos em Educação, Tecnologias e Saúde (CI&DETS), Instituto Politécnico de Viseu, Portugal
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15
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Ali K, Zahra D, Coelho C, Jones G, Tredwin C. Academic performance of undergraduate dental students with learning disabilities. Br Dent J 2017; 222:205-208. [PMID: 28184079 DOI: 10.1038/sj.bdj.2017.125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2017] [Indexed: 11/09/2022]
Abstract
Aims To compare the academic performance of undergraduate dental students with known learning disabilities (LDs) to their peers.Methods This study analysed the results of students in applied dental knowledge (ADK) progress tests across four cohorts of dental students. A mixed model analysis of variance (ANOVA) was conducted to compare the performance of students with known disability to their peers. ADK test sitting was treated as a repeated measures variable, and the outcome variable of interest was percentage score on the ADK.Results Students' performance data on five ADK test sittings (ADK15, ADK16, ADK17, ADK18, and ADK19) by disability showed a significant main effect of test but no significant effect of disability or any interaction between disability and test.Conclusions This is the first study that explores the academic performance of dental students with a diagnosis of disability. The findings give reassurance to all stakeholders that, within the study population, students with LDs are not disadvantaged in knowledge-based assessments, demonstrating compliance with the legal obligations. Further research is required to explore how generalisable these findings are, as well as assess academic, clinical, and behavioural attributes of students with learning disabilities.
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Affiliation(s)
- K Ali
- Peninsula Dental School, Plymouth University
| | - D Zahra
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | | | | | - C Tredwin
- Head of Peninsula Dental School, Plymouth University
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Coelho C, de Lencastre H, Aires-de-Sousa M. Frequent occurrence of trimethoprim-sulfamethoxazole hetero-resistant Staphylococcus aureus isolates in different African countries. Eur J Clin Microbiol Infect Dis 2017; 36:1243-1252. [PMID: 28160148 DOI: 10.1007/s10096-017-2915-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 01/24/2017] [Indexed: 12/19/2022]
Abstract
High rates of trimethoprim/sulfamethoxazole (SXT) resistance, a combination of two antifolate antibiotics trimethoprim (TMP) and sulfamethoxazole (SMZ), have been reported among Staphylococcus aureus isolates in Portuguese-speaking African countries. Our study aimed to evaluate the occurrence of TMP resistance markers in major SXTR methicillin-resistant S. aureus (MRSA) clones from these countries. We accessed also different fitness traits that could explain the success of these isolates over the Brazilian MRSA (the most successful SXTR MRSA clone worldwide but never identified in these countries). Minimum inhibitory concentrations for SXT, TMP and SMZ were determined, and genes encoding TMP resistance (dfrG, dfrA, dfrK and dfrB) were searched. Representatives of the Brazilian clone and of the major MRSA African clones were evaluated for their fitness by individual growth curves, competition assays, survival under desiccation, autolytic activity, resistance to oxidative stress, and also growth at high osmolarity and in acid and alkaline environments. Although all African isolates showed high-level resistance to TMP, the majority presented hetero-resistance to SXT. TMP resistance was linked to the presence of dfrG (78%), dfrA (19%) or both (3%) genes. Compared to the Brazilian clone, the African isolates showed higher growth rates and autolytic activity, and better survival to desiccation and alkaline conditions. Since isolates exhibiting SXT hetero-resistance are frequent in Africa, the implementation of standardized guidelines to detect this phenomenon is of major interest. The predominant MRSA clones in Portuguese-speaking African countries likely possess significant advantages over other clones, such as the Brazilian MRSA, that may explain their epidemiological success.
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Affiliation(s)
- C Coelho
- Laboratory of Molecular Genetics, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - H de Lencastre
- Laboratory of Molecular Genetics, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Laboratory of Microbiology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - M Aires-de-Sousa
- Escola Superior de Saúde da Cruz Vermelha Portuguesa, Avenida de Ceuta, n°1, Edifício UrbiCeuta, 1300-125, Lisbon, Portugal.
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Medeiros Pinto J, Prates Canelas J, Rosa R, Coelho C, Vaz-Pereira S. Tomographic analysis of the retinal layers in diabetic macular edema treated with dexamethasone intravitreal implant. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Akers J, Coelho C, Gloeckner J, Wenos D. Predictive Equations Overestimate Energy Requirements in Overweight and Obese, Chronically Ill, Adult Nursing Home Residents. J Acad Nutr Diet 2016. [DOI: 10.1016/j.jand.2016.06.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Foti A, Hartmann T, Coelho C, Santos-Silva T, Romao MJ, Leimkuhler S. Optimization of the Expression of Human Aldehyde Oxidase for Investigations of Single-Nucleotide Polymorphisms. Drug Metab Dispos 2016; 44:1277-85. [DOI: 10.1124/dmd.115.068395] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/01/2016] [Indexed: 01/02/2023] Open
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20
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Lopes M, Nolasco P, Coelho C, Coelho P, Pereira M, Alves de Matos A, Carvalho P, Oliveira M. Salivary calculi morphology: SEM and mCT correlative observation. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.268] [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: 10/22/2022]
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21
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Conceição T, Coelho C, Silva IS, de Lencastre H, Aires-de-Sousa M. Staphylococcus aureus in former Portuguese colonies from Africa and the Far East: missing data to help fill the world map. Clin Microbiol Infect 2015; 21:842.e1-842.e10. [PMID: 26003281 DOI: 10.1016/j.cmi.2015.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 04/30/2015] [Accepted: 05/11/2015] [Indexed: 10/23/2022]
Abstract
The aim of the present study was to determine the prevalence and risk factors for methicillin-resistant Staphylococcus aureus (MRSA) nasal carriage among patients and healthcare workers in Angola (ANG), São Tomé and Príncipe (STP), Cape Verde (CV) and East Timor (ET), and to characterize the antimicrobial susceptibility, virulence content and population structure of all S. aureus. Despite the importance of MRSA as a major human pathogen, data from these former Portuguese colonies in Africa and Asia are scarce. A total of 2065 nasal swabs recovered between 2010-14 were included in the study. Antimicrobial susceptibility testing and molecular characterization of S. aureus showed: (i) a very high MRSA prevalence in ANG (61.6%), moderate in STP (25.5%), low in CV (5.6%) and null in ET; (ii) a high prevalence of Panton-Valentine leukocidin in STP (36.8%), ET (29.2%) and CV (28.3%) contrasting with ANG (7.9%); (iii) ST5-SCCmecIVa, ST8-IV/V and ST5-VI were the major MRSA clones in ANG (65.2%), STP (44.8%) and CV (50%), respectively; (iv) a high resistance to trimethoprim-sulfamethoxazole in ANG (66.5%) and STP (50.9%), to rifampin in ANG (77.3%), and to tetracycline in STP (26.3%) and ET (20.8%); (v) three major methicillin-susceptible S. aureus clones (ST15, ST508, ST152) were present in all four countries. Age <18 years (OR 2.03, 95% CI 1.24-3.31), previous surgery (OR 2.45, 95% CI 1.24-4.83), no smoking (OR 4.04, 95% CI 1.05-15.50), and longer hospitalization (OR 2.53, 95% CI 1.49-4.28) were risk factors for MRSA carriage. This study provided the first comprehensive overview on MRSA in former Portuguese colonies in Africa and Asia, missing data in the world map.
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Affiliation(s)
- T Conceição
- Laboratory of Molecular Genetics, Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa (UNL), Oeiras, Portugal
| | - C Coelho
- Laboratory of Molecular Genetics, Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa (UNL), Oeiras, Portugal
| | - I Santos Silva
- Escola Superior de Saúde da Cruz Vermelha Portuguesa (ESSCVP), Lisbon, Portugal
| | - H de Lencastre
- Laboratory of Molecular Genetics, Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa (UNL), Oeiras, Portugal; Laboratory of Microbiology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - M Aires-de-Sousa
- Escola Superior de Saúde da Cruz Vermelha Portuguesa (ESSCVP), Lisbon, Portugal.
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22
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Mesquita JR, Oliveira RMS, Coelho C, Vieira-Pinto M, Nascimento MSJ. Hepatitis E Virus in Sylvatic and Captive Wild Boar from Portugal. Transbound Emerg Dis 2014; 63:574-8. [PMID: 25405272 DOI: 10.1111/tbed.12297] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Indexed: 12/26/2022]
Abstract
Hepatitis E virus (HEV) is a zoonotic agent today considered a major Public Health issue in industrialized countries. HEV strains belonging to zoonotic genotype 3 are widely present in swine, being today considered important reservoirs for human disease. Unlike in swine, only scarce data are available on the circulation of HEV in wild boar. This study describes the detection and molecular characterization of HEV in livers from sylvatic wild boar hunted in Portugal and destined for consumption. Additionally, the detection of HEV in stools of a confined wild boar population also destined for consumption is also described. A total of 80 liver samples collected during the hunting season of 2011/2012 and 40 stools collected in February 2012 from a wild boar breeding farm in Portugal were tested by a nested broad-spectrum RT-PCR assay targeting open reading frame (ORF) 1. Twenty livers (25.0%) and 4 stools (10%) were positive for HEV. Phylogenetic analysis showed that all strains clustered with sequences classified as HEV genotype 3 subgenotype e. To our knowledge, this is the first report documenting the occurrence and molecular analysis of HEV in sylvatic and captive wild boar destined for human consumption in Portugal. This report demonstrates for the first time the circulation of HEV in wildlife reservoirs of Portugal adding knowledge to the epidemiology of HEV in wild boar populations.
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Affiliation(s)
- J R Mesquita
- Escola Superior Agrária de Viseu, Instituto Politécnico de Viseu, Viseu, Portugal.,CIBIO/UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - R M S Oliveira
- Laboratório de Microbiologia, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - C Coelho
- Escola Superior Agrária de Viseu, Instituto Politécnico de Viseu, Viseu, Portugal.,CIBIO/UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - M Vieira-Pinto
- Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal.,Departamento de Ciências Veterinárias, Escola de Ciências Agrárias e Veterinárias Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - M S J Nascimento
- CIBIO/UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal.,Laboratório de Microbiologia, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
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Kairis O, Kosmas C, Karavitis C, Ritsema C, Salvati L, Acikalin S, Alcalá M, Alfama P, Atlhopheng J, Barrera J, Belgacem A, Solé-Benet A, Brito J, Chaker M, Chanda R, Coelho C, Darkoh M, Diamantis I, Ermolaeva O, Fassouli V, Fei W, Feng J, Fernandez F, Ferreira A, Gokceoglu C, Gonzalez D, Gungor H, Hessel R, Juying J, Khatteli H, Khitrov N, Kounalaki A, Laouina A, Lollino P, Lopes M, Magole L, Medina L, Mendoza M, Morais P, Mulale K, Ocakoglu F, Ouessar M, Ovalle C, Perez C, Perkins J, Pliakas F, Polemio M, Pozo A, Prat C, Qinke Y, Ramos A, Ramos J, Riquelme J, Romanenkov V, Rui L, Santaloia F, Sebego R, Sghaier M, Silva N, Sizemskaya M, Soares J, Sonmez H, Taamallah H, Tezcan L, Torri D, Ungaro F, Valente S, de Vente J, Zagal E, Zeiliguer A, Zhonging W, Ziogas A. Evaluation and selection of indicators for land degradation and desertification monitoring: types of degradation, causes, and implications for management. Environ Manage 2014; 54:971-82. [PMID: 23811772 DOI: 10.1007/s00267-013-0110-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 06/07/2013] [Indexed: 05/25/2023]
Abstract
Indicator-based approaches are often used to monitor land degradation and desertification from the global to the very local scale. However, there is still little agreement on which indicators may best reflect both status and trends of these phenomena. In this study, various processes of land degradation and desertification have been analyzed in 17 study sites around the world using a wide set of biophysical and socioeconomic indicators. The database described earlier in this issue by Kosmas and others (Environ Manage, 2013) for defining desertification risk was further analyzed to define the most important indicators related to the following degradation processes: water erosion in various land uses, tillage erosion, soil salinization, water stress, forest fires, and overgrazing. A correlation analysis was applied to the selected indicators in order to identify the most important variables contributing to each land degradation process. The analysis indicates that the most important indicators are: (i) rain seasonality affecting water erosion, water stress, and forest fires, (ii) slope gradient affecting water erosion, tillage erosion and water stress, and (iii) water scarcity soil salinization, water stress, and forest fires. Implementation of existing regulations or policies concerned with resources development and environmental sustainability was identified as the most important indicator of land protection.
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Affiliation(s)
- Or Kairis
- Laboratory of Soils, Agricultural University of Athens, Iera Odos 75, Athens, 11855, Greece
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24
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Kosmas C, Kairis O, Karavitis C, Ritsema C, Salvati L, Acikalin S, Alcala M, Alfama P, Atlhopheng J, Barrera J, Belgacem A, Solé-Benet A, Brito J, Chaker M, Chanda R, Coelho C, Darkoh M, Diamantis I, Ermolaeva O, Fassouli V, Fei W, Feng J, Fernandez F, Ferreira A, Gokceoglu C, Gonzalez D, Gungor H, Hessel R, Juying J, Khatteli H, Khitrov N, Kounalaki A, Laouina A, Lollino P, Lopes M, Magole L, Medina L, Mendoza M, Morais P, Mulale K, Ocakoglu F, Ouessar M, Ovalle C, Perez C, Perkins J, Pliakas F, Polemio M, Pozo A, Prat C, Qinke Y, Ramos A, Ramos J, Riquelme J, Romanenkov V, Rui L, Santaloia F, Sebego R, Sghaier M, Silva N, Sizemskaya M, Soares J, Sonmez H, Taamallah H, Tezcan L, Torri D, Ungaro F, Valente S, de Vente J, Zagal E, Zeiliguer A, Zhonging W, Ziogas A. Evaluation and selection of indicators for land degradation and desertification monitoring: methodological approach. Environ Manage 2014; 54:951-970. [PMID: 23797485 DOI: 10.1007/s00267-013-0109-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 06/07/2013] [Indexed: 06/02/2023]
Abstract
An approach to derive relationships for defining land degradation and desertification risk and developing appropriate tools for assessing the effectiveness of the various land management practices using indicators is presented in the present paper. In order to investigate which indicators are most effective in assessing the level of desertification risk, a total of 70 candidate indicators was selected providing information for the biophysical environment, socio-economic conditions, and land management characteristics. The indicators were defined in 1,672 field sites located in 17 study areas in the Mediterranean region, Eastern Europe, Latin America, Africa, and Asia. Based on an existing geo-referenced database, classes were designated for each indicator and a sensitivity score to desertification was assigned to each class based on existing research. The obtained data were analyzed for the various processes of land degradation at farm level. The derived methodology was assessed using independent indicators, such as the measured soil erosion rate, and the organic matter content of the soil. Based on regression analyses, the collected indicator set can be reduced to a number of effective indicators ranging from 8 to 17 in the various processes of land degradation. Among the most important indicators identified as affecting land degradation and desertification risk were rain seasonality, slope gradient, plant cover, rate of land abandonment, land-use intensity, and the level of policy implementation.
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Rodrigues SM, Coelho C, Cruz N, Monteiro RJR, Henriques B, Duarte AC, Römkens PFAM, Pereira E. Oral bioaccessibility and human exposure to anthropogenic and geogenic mercury in urban, industrial and mining areas. Sci Total Environ 2014; 496:649-661. [PMID: 25034206 DOI: 10.1016/j.scitotenv.2014.06.115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 06/25/2014] [Accepted: 06/25/2014] [Indexed: 06/03/2023]
Abstract
The objective of this study was to characterize the link between bioaccessibility and fractionation of mercury (Hg) in soils and to provide insight into human exposure to Hg due to inhalation of airborne soil particles and hand-to-mouth ingestion of Hg-bearing soil. Mercury in soils from mining, urban and industrial areas was fractionated in organometallic forms; mobile; semi-mobile; and non-mobile forms as well as HCl-extractable Hg. The in vitro bioaccessibility of Hg was obtained by extracting soils with (1) a simulated human gastric fluid (pH1.5), and (2) a simulated human lung fluid (pH7.4). Total soil Hg concentrations ranged from 0.72 to 1.8 mg kg(-1) (urban areas), 0.28 to 94 mg kg(-1) (industrial area) and 0.92 to 37 mg kg(-1) (mining areas). Both organometallic Hg as well as 0.1M HCl extractable Hg were lower (<0.5% of total Hg) than Hg extracted by gastric fluid (up to 1.8% of total Hg) and lung fluid (up to 12% of total Hg). In addition, Hg extracted by lung fluid was significantly higher in urban and industrial soils (average 5.0-6.6% of total Hg) compared to mining soils. Such differences were related to levels of mobile Hg species in urban and industrial soils compared to mining soils. These results strengthen the need to measure site-specific Hg fractionation when determining Hg bioaccessibility. Results also show that ingestion and/or inhalation of Hg from soil particles can contribute up to 8% of adult total Hg intake when compared to total Hg intake via consumption of contaminated fish and animal products from contaminated areas.
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Affiliation(s)
- S M Rodrigues
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - C Coelho
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - N Cruz
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - R J R Monteiro
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - B Henriques
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - A C Duarte
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - P F A M Römkens
- Alterra - Wageningen University and Research Center, PO Box 47, Wageningen, 6700 AA, The Netherlands
| | - E Pereira
- Centre for Environmental and Marine Studies (CESAM)/Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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Relvas M, Coelho C, Velazco Henriques C, Ramos E. Cariogenic bacteria and dental health status in adolescents: the role of oral health behaviours. Eur J Paediatr Dent 2014; 15:281-287. [PMID: 25306145] [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: 06/04/2023]
Abstract
AIM To evaluate the association between dental health status and levels of cariogenic bacteria in teenagers and the influence of behaviours and socio-demographic background on levels of bacteria. MATERIALS AND METHODS Study design: A cross-sectional population-based sample of 13-year-old adolescents (112 females and 78 males, total 190) was examined. The number of decayed, missing and filled surfaces (DMFS), plaque and hygiene index were recorded according to the WHO criteria. The saliva samples were collected in a sterile container and then analysed by culture on Mitis Salivarius Bacitracin (MSB) agar for mutans Streptococci and on Man Rogosa Sharp (MRS) agar for Lactobacilli. The levels of bacteria were expressed as the number of colonies forming units per millilitre of saliva (CFU/ml). Associations between levels of mutans Streptococci and Lactobacilli and dental health were estimated by odds ratio (OR) and 95% confidence interval (95% CI) using unconditional logistic regression. RESULTS No mutans Streptococci were detected in 53.2% of the adolescents but 22.6% presented ≥ 10³ CFU/ml. For Lactobacilli, these values were, respectively 43.7% and 34.7%. After adjustment for gender and social class, the OR (95% CI) for DMFS >5 was 8.66 (3.57-21.02) if mutans Streptococci ≥ 10³ CFU and 2.11 (0.96-4.64) if Lactobacilli ≥ 10³ CFU. CONCLUSION This data allow us to conclude that hygiene habits and dental visits are not associated with high levels of cariogenic bacteria, but high scores of DMFS were found in adolescents with high levels of mutans Streptococci and lower parents' education.
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Affiliation(s)
- M Relvas
- Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal - Department of Science, Oral Microbiology Laboratory, Instituto Superior de Ciências da Saúde-Norte, Gandra, Portugal
| | - C Coelho
- Department of Science, Oral Microbiology Laboratory, Instituto Politécnico de Ciências da Saúde-Norte, Gandra, Portugal
| | - C Velazco Henriques
- Department of Science, Oral Microbiology Laboratory, Instituto Superior de Ciências da Saúde-Norte, Gandra, Portugal
| | - E Ramos
- Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal - Institute of Public Health, University of Porto, Portugal
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Affiliation(s)
- C Coelho
- Universidade Vila Velha; Vila Velha Espírito Santo Brazil
| | - B Drumond
- Universidade Vila Velha; Vila Velha Espírito Santo Brazil
| | - G Silva
- Universidade Vila Velha; Vila Velha Espírito Santo Brazil
| | - V Fardin
- Universidade Vila Velha; Vila Velha Espírito Santo Brazil
| | - CR Giuberti
- Universidade Vila Velha; Vila Velha Espírito Santo Brazil
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Mesquita B, Gonçalves MJ, Pacheco P, Lopes J, Salazar F, Relvas M, Coelho C, Pacheco JJ, Velazco C. Helicobacter pylori identification: a diagnostic/confirmatory method for evaluation. Curr Microbiol 2014; 69:245-51. [PMID: 24715050 DOI: 10.1007/s00284-014-0578-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/08/2014] [Indexed: 12/16/2022]
Abstract
The Helicobacter pylori extra gastric reservoir is probably the oral cavity. In order to evaluate the presence of this bacterium in patients with periodontitis and suspicious microbial cultures, saliva was collected from these and non-periodontitis subjects. PCRs targeting 16S rRNA gene and a 860 bp specific region were performed, and digested with the restriction enzyme DdeI. We observed that the PCR-RFLP approach augments the accuracy from 26.2 % (16/61), found in the PCR-based results, to 42.6 % (26/61), which is an excellent indicator for the establishment of this low-cost procedure as a diagnostic/confirmatory method for H. pylori evaluation.
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Affiliation(s)
- B Mesquita
- Instituto de Investigação e Formação Avançada em Técnicas da Saúde (IINFACTS), Instituto Superior de Ciências da Saúde-Norte/CESPU, Gandra PRD, Portugal
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Rodrigues SM, Cruz N, Coelho C, Henriques B, Carvalho L, Duarte AC, Pereira E, Römkens PFAM. Risk assessment for Cd, Cu, Pb and Zn in urban soils: chemical availability as the central concept. Environ Pollut 2013. [PMID: 23194645 DOI: 10.1016/j.envpol.2012.10.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
To assess the geochemical reactivity and oral bioaccessibility of Cd, Cu, Pb and Zn in urban soils from the Porto area, four extractions were performed including Aqua Regia (AR; pseudototal), 0.43 M HNO3 (reactive), 0.01 M CaCl2 (available), and 0.4 M glycine at pH = 1.5, SBET method (oral bioaccessible pool). Oral bioaccessibility in urban soils was higher than in samples from rural, industrial and mining areas which is most likely related to sources of metals and parent materials of corresponding soils. The availability and reactivity were described well by non-linear Freundlich-type equations when considering differences in soil properties. The resulting empirical models are able to predict availability and reactivity and can be used to improve the accuracy of risk assessment. Furthermore, a close 1:1 relationship exists between results from the 0.43 M HNO3 method and the SBET method which substantially facilitates risk assessment procedures and reduces analytical costs.
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Affiliation(s)
- S M Rodrigues
- CESAM & Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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Henriques B, Rodrigues SM, Coelho C, Cruz N, Duarte AC, Römkens PFAM, Pereira E. Risks associated with the transfer of toxic organo-metallic mercury from soils into the terrestrial feed chain. Environ Int 2013; 59:408-17. [PMID: 23917441 DOI: 10.1016/j.envint.2013.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 05/23/2023]
Abstract
Although the transfer of organo-metallic mercury (OrgHg) in aquatic food webs has long been studied, it has only been recently recognized that there is also accumulation in terrestrial systems. There is still however little information about the exposure of grazing animals to OrgHg from soils and feed as well as on risks of exposure to animal and humans. In this study we collected 78 soil samples and 40 plant samples (Lolium perenne and Brassica juncea) from agricultural fields near a contaminated industrial area and evaluated the soil-to-plant transfer of Hg as well as subsequent trophic transfer. Inorganic Hg (IHg) concentrations ranged from 0.080 to 210mgkg(-1) d.w. in soils, from 0.010 to 84mgkg(-1) d.w. in roots and from 0.020 to 6.9mgkg(-1) d.w. in shoots. OrgHg concentrations in soils varied between 0.20 and 130μgkg(-1) d.w. representing on average 0.13% of the total Hg (THg). In root and shoot samples OrgHg comprised on average 0.58% (roots) and 0.66% (shoots) of THg. Average bioaccumulation factors (BAFs) for OrgHg in relation to soil concentrations were 3.3 (for roots) and 1.5 (for shoots). The daily intake (DI) of THg in 33 sampling sites exceeded the acceptable daily intake (ADI) of THg of both cows (ADI=1.4mgd(-1)) and sheep (ADI=0.28mgd(-1)), in view of food safety associated with THg in animal kidneys. Estimated DI of OrgHg for grazing animals were up to 220μgd(-1) (for cows) and up to 33μgd(-1) (for sheep). This study suggested that solely monitoring the levels of THg in soils and feed may not allow to adequately taking into account accumulation of OrgHg in feed crops and properly address risks associated with OrgHg exposure for animals and humans. Hence, the inclusion of limits for OrgHg in feed quality and food safety legislation is advised.
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Affiliation(s)
- Bruno Henriques
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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Santos MA, Coelho C, Mendes J. In vitro susceptibility evaluation of Candida species isolated from removable prosthesis, from three antifungal agents and an essential oil. Bull Group Int Rech Sci Stomatol Odontol 2012; 51:e13. [PMID: 25460788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 11/14/2012] [Indexed: 06/04/2023]
Abstract
Short Communication selected from the Oral Presentations of the 56th Congress of the Groupèment International pour la Recherche Scientifique en Stomatologie et Odontologie, Peñafiel (Portugal) May 2012.
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Affiliation(s)
- M A Santos
- Instituto Superior de Ciências da Saúde -Norte (ISCS-N).
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Braz M, Coelho C, Jorge A. [Not Available]. Bull Group Int Rech Sci Stomatol Odontol 2012; 51:e11. [PMID: 25460787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 11/14/2012] [Indexed: 06/04/2023]
Abstract
Short Communication selected from the Oral Presentations of the 56th Congress of the Groupèment International pour la Recherche Scientifique en Stomatologie et Odontologie, Peñafiel (Portugal) May 2012.
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Affiliation(s)
- Mp Braz
- Instituto Superior de Ciências da Saúde -Norte (ISCS-N).
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Azevedo T, Tavares JP, Silva S, Coelho C. In vitro evaluation of the antimicrobial effect of a commercial tablet for prosthesis disinfection. Bull Group Int Rech Sci Stomatol Odontol 2011; 50:19-24. [PMID: 22750595] [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] [Received: 09/20/2011] [Accepted: 09/20/2011] [Indexed: 06/01/2023]
Affiliation(s)
- T Azevedo
- Instituto Superior de Ciências da Saúde - Norte, Gandra, Portugal.
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Radhouani H, Pinto L, Coelho C, Sargo R, Araújo C, López M, Torres C, Igrejas G, Poeta P. MLST and a genetic study of antibiotic resistance and virulence factors invanA-containingEnterococcus from buzzards (Buteo buteo). Lett Appl Microbiol 2010; 50:537-41. [DOI: 10.1111/j.1472-765x.2010.02807.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bastos C, Coelho C. P01-189 - Behavioral and neuropsychological evaluation in ADHD diagnosis. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70395-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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37
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Coelho C, Bastos C. P01-324 - Temporality and depression in old age. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70532-0] [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: 10/19/2022] Open
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Radhouani H, Pinto L, Coelho C, Goncalves A, Sargo R, Torres C, Igrejas G, Poeta P. Detection of Escherichia coli harbouring extended-spectrum -lactamases of the CTX-M classes in faecal samples of common buzzards (Buteo buteo). J Antimicrob Chemother 2009; 65:171-3. [DOI: 10.1093/jac/dkp403] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [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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Cardoso G, Coelho C, Caldas de Almeida J. The DEMoBinc Study in Portugal: Development and First Results. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70404-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The DEMoBinc study's main objective is to develop an instrument for assessing the living conditions, the quality of care, and the human rights of long-term mentally ill patients in psychiatric and social residential care. It started on March 2007, with 11 centres and 10 countries participating.The Portuguese centre has carried out a national literature review of mental health legislation, standards of care related with residential care for mental patients, and mandatory procedures for physical restraint and seclusion.A three-round Delphi exercise with four groups of experts - advocates, mental health professionals, service users, and carers - was also developed. In the first round the participants were asked to state the ten more important components of care helping recovery in institutional care for the long-term mentally ill. The results were sent back to be rated for their importance on a 5-point scale. Finally, the participants were asked to confirm or change their own scores in comparison with the calculated group median. Between twelve and 18 participants by group were contacted, and the overall rate of participation was 73%.A pilot study using the first draft of the DEMoBinc instrument was done, and refinement of the instrument is being carried out in twenty institutions and will be completed during the next months.The results of the Portuguese centre on the national literature review, the Delphi exercise, and the first phase refinement of the DEMoBinc instrument will be presented and discussed.
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Najmudin S, González PJ, Coelho C, Trincão J, Moura I, Moura JJG, Brondino CD, Romão MJ. New insights for the catalytic and inhibition mechanisms of periplasmic nitrate reductase (Nap) from Desulfovibrio desulfuricansfrom structural and spectroscopic analysis. Acta Crystallogr A 2007. [DOI: 10.1107/s0108767307096857] [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: 11/10/2022] Open
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Gervais C, Coelho C, Azaïs T, Maquet J, Laurent G, Pourpoint F, Bonhomme C, Florian P, Alonso B, Guerrero G, Mutin PH, Mauri F. First principles NMR calculations of phenylphosphinic acid C6H5HPO(OH): assignments, orientation of tensors by local field experiments and effect of molecular motion. J Magn Reson 2007; 187:131-40. [PMID: 17481933 DOI: 10.1016/j.jmr.2007.03.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2007] [Revised: 03/19/2007] [Accepted: 03/20/2007] [Indexed: 05/15/2023]
Abstract
The complete set of NMR parameters for (17)O enriched phenylphosphinic acid C(6)H(5)HP( *)O(*OH) is calculated from first principles by using the Gauge Including Projected Augmented Wave (GIPAW) approach [C.J. Pickard, F. Mauri, All-electron magnetic response with pseudopotentials: NMR chemical shifts, Phys. Rev. B 63 (2001) 245101/1-245101/13]. The analysis goes beyond the successful assignment of the spectra for all nuclei ((1)H, (13)C, (17)O, (31)P), as: (i) the (1)H CSA (chemical shift anisotropy) tensors (magnitude and orientation) have been interpreted in terms of H bonding and internuclear distances. (ii) CSA/dipolar local field correlation experiments have allowed the orientation of the direct P-H bond direction in the (31)P CSA tensor to be determined. Experimental and calculated data were compared. (iii) The overestimation of the calculated (31)P CSA has been explained by local molecular reorientation and confirmed by low temperature static (1)H-->(31)P CP experiments.
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Affiliation(s)
- C Gervais
- Université Pierre et Marie Curie-Paris 6, UMR 7574 Laboratoire de Chimie de la Matière Condensée de Paris, Paris F-75005, France.
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Coelho C, Azaïs T, Bonhomme-Coury L, Laurent G, Bonhomme C. Efficiency of the Refocused31P−29Si MAS-J-INEPT NMR Experiment for the Characterization of Silicophosphate Crystalline Phases and Amorphous Gels. Inorg Chem 2007; 46:1379-87. [PMID: 17291123 DOI: 10.1021/ic061964f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One- and two-dimensional refocused MAS-J-INEPT NMR experiments in the solid state (through-bond polarization transfer) involving the highly abundant 31P spin and the rare 29Si spin are described for the crystalline silicophosphate phase Si5O(PO4)6 and complex mixtures of SiP2O7 polymorphs. The evaluation of the 2JP-O-Si coupling constants for all 29Si sites is obtained by the careful analysis of the INEPT build-up curves under fast MAS. The results are in agreement with the crystallographic data, taking into account the various J coupling paths. The efficiency of the experiment is demonstrated by its application to more complex systems such as silicophosphate amorphous gels (obtained by the sol-gel process).
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Affiliation(s)
- C Coelho
- Université Pierre et Marie Curie-Paris 6, UMR 7574, Laboratoire Chimie de la Matière Condensée de Paris, Paris, F-75005 France
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Coelho C, Sacoto L, Sousa S, Manzano D, da Costa EC. P.241 Osteoblastoma of the mandibula: Report of a case. J Craniomaxillofac Surg 2006. [DOI: 10.1016/s1010-5182(06)60749-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Coelho C, Cabrita F, Sousa S, Manzano D, Gumbao V, da Costa EC. P.240 Pleomorphic adenoma of minor salivary glands: Report of two cases. J Craniomaxillofac Surg 2006. [DOI: 10.1016/s1010-5182(06)60748-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Coelho C, Azais T, Bonhomme-Coury L, Maquet J, Massiot D, Bonhomme C. Application of the MAS-J-HMQC experiment to a new pair of nuclei {29Si,31P}: Si5O(PO4)6 and SiP2O7 polymorphs. J Magn Reson 2006; 179:114-9. [PMID: 16343956 DOI: 10.1016/j.jmr.2005.11.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2005] [Revised: 11/22/2005] [Accepted: 11/22/2005] [Indexed: 05/05/2023]
Abstract
We report the results of the two-dimensional MAS-J-HMQC experiment providing scalar correlations between 29Si and 31P nuclei in solid state NMR, and we give the first evaluation of the 2JSi-O-P coupling constants (approximately 15 Hz) for a crystalline silicophosphate phase Si5O(PO4)6. The experiment is applied to the characterization of complex mixtures of SiP2O7 phases, through editing of 31P spin pairs by the heteronuclear 2JP-O-Si interaction.
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Affiliation(s)
- C Coelho
- Laboratoire de Chimie de la Matière Condensée, Université P. et M. Curie (Paris VI), UMR 7574, 4 place Jussieu, 75252 Paris Cedex 05, France
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Coelho C, Steers M, Lutzler P, Schriver-Mazzuoli L. Indoor air pollution in old people's homes related to some health problems: a survey study. Indoor Air 2005; 15:267-74. [PMID: 15982273 DOI: 10.1111/j.1600-0668.2005.00371.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
UNLABELLED The present research reports on a survey of 96 subjects between the ages of 60 and 95 years, living close to Paris in a social collective habitat. The aim was to show, using goodness-of-fit statistical tests (P < 0.1), how old people lifestyles can subject them to generated chemical or bacteriological indoor pollutants. Risk factors due to lifestyles were analyzed in relation to complaints and to health condition. There are many ways that old people are exposed to pollutants: difficulty in maintaining the residence, preference for staying in the kitchens, substantial use of cleaning chemicals. However, the principal risk for health problems is arguably inadequate ventilation (unclean screens, blocked air vents, etc.), which increases the concentration of indoor pollutants. These risks are amplified by ignorance about the hazards of inadequate ventilation. PRACTICAL IMPLICATIONS The present investigation suggests that the lifestyle and the behavior of old people could be the cause of an interior air pollution of their housing. Measures realized in representative dwellings selected in relation to results must confirm that these risks would require the installation of an automatic monitoring system of the indoor air near these people.
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Affiliation(s)
- C Coelho
- Laboratoire d'Etude des Nuisances Atmosphériques et de leurs Effets, Institut Universitaire Professionnalisé Ville et Santé, Université Paris XIII, Bobigny Cedex, France.
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Scotti G, Marcenaro L, Coelho C, Selvaggi F, Regazzoni C. Dual camera intelligent sensor for high definition 360 degrees surveillance. ACTA ACUST UNITED AC 2005. [DOI: 10.1049/ip-vis:20041302] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Coelho C, Vinatea CEB, Heinert AP, Simões CMO, Barardi CRM. Comparison between specific and multiplex reverse transcription-polymerase chain reaction for detection of hepatitis A virus, poliovirus and rotavirus in experimentally seeded oysters. Mem Inst Oswaldo Cruz 2003; 98:465-8. [PMID: 12937755 DOI: 10.1590/s0074-02762003000400006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Outbreaks of gastroenteritis have occurred among consumers of raw or undercooked shellfish harvested from faecally polluted waters. A multiplex reverse transcription-polymerase chain reaction (RT-PCR) was applied for the simultaneous detection of hepatitis A virus (HAV), poliovirus (PV) and simian rotavirus (RV-SA11) and compared with specific primers for each genome sequence. Three amplified DNA products representing HAV (192 bp), PV (394 bp) and RV (278 bp) were identified when positive controls were used. However, when tested on experimentally contaminated raw oysters, this method was not able to detect the three viruses simultaneously. This is probably due to the low concentration of viral RNAs present in oyster extract which were partially lost during the extracts preparation.
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Affiliation(s)
- C Coelho
- Departamento de Farmácia, CCS, Universidade do Vale de Itajaí, Itajaí, SC, Brasil
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Coelho C, Heinert AP, Simões CMO, Barardi CRM. Hepatitis A virus detection in oysters (Crassostrea gigas) in Santa Catarina State, Brazil, by reverse transcription-polymerase chain reaction. J Food Prot 2003; 66:507-11. [PMID: 12636311 DOI: 10.4315/0362-028x-66.3.507] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Shellfish are readily contaminated with viruses present in water containing sewage because of the concentration effect of filter feeding. Hepatitis A virus (HAV) is the main cause of acute hepatitis worldwide and may lead to severe illness or even death. It is transmitted through fecal and oral routes and causes widespread endemic and asymptomatic infections in young children. Here we describe a method for the detection of HAV RNA in shellfish involving the extraction of total RNA from oyster meat followed by reverse transcription-polymerase chain reaction (RT-PCR). Virus recovery from oyster extracts artificially seeded with HAV strain HM 175 was examined by RT-PCR. The minimum detection limit was 3.3 focus-forming units of HAV, and the recovery rate was 75.7%. This method was used to assess the viral contamination of four shellfish beds in Santa Catarina State, Brazil, over a 1-year period. Six (22%) of 27 samples collected in autumn and winter from one shellfish bed tested positive for HAV.
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Affiliation(s)
- C Coelho
- Laboratório de Virologia Aplicada, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina 88040-900, Florianópolis, Santa Catarina, Brazil
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Abstract
BACKGROUND, AIMS Conventional mechanical treatment of Papillon-Lefèvre syndrome periodontitis has a poor prognosis. This report describes an effective antimicrobial treatment of rapidly progressing periodontitis in an 11-year old girl having Papillon-Lefèvre syndrome. METHOD Clinical examination included conventional periodontal measurements and radiographic analysis. Occurrence of major suspected periodontopathic bacteria was determined by selective and non-selective culture and by polymerase chain reaction (PCR) identification. Presence of cytomegalovirus and Epstein-Barr type 1 virus was determined by a nested-PCR detection method. Therapy included scaling and root planing, oral hygiene instruction, and systemic amoxicillin-metronidazole therapy (250 mg of each/3 times daily/10 days) which, based on follow-up microbiological testing, was repeated after 4 months. Supportive periodontal therapy took place at 2 visits during a 16-month period. RESULTS At baseline, 10 of 22 available teeth demonstrated severe periodontal breakdown. At 16 months, probing and radiographic measurements revealed no teeth with additional attachment loss, and several teeth exhibited significant reduction in gingivitis and pocket depth, increase in radiographic alveolar bone height and clinical attachment level, and radiographic evidence of crestal lamina dura. Baseline subgingival microbiota included Actinobacillus actinomycetemcomitans (3.4% of total isolates), Prevotella nigrescens (16.4%), Fusobacteriumnucleatum (14.3%) and Peptostreptococcus micros (10.6%), as well as cytomegalovirus and Epstein-Barr type 1 virus. At termination of the study, culture and PCR examinations showed absence of A. actinomycetemcomitans, P. micros and herpesviruses, and P. nigrescens and F.nucleatum each comprised less than 0.1 % of subgingival isolates. CONCLUSION This study suggests that controlling the periodontopathic microbiota by appropriate antibiotic and conventional periodontal therapy can arrest Papillon-Lefèvre syndrome periodontitis.
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Affiliation(s)
- J J Pacheco
- Department of Periodontology, School of Dentistry, Instituto Superior de Ciências da Saúde-Norte, Paredes, Portugal
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