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Cappellano A, Gorostegui M, Gonzalez-Ramella O, Filho NPC, Valencia D, Chantada L, Sampor C, Serrano MJ, Macedo C, Ramirez O, Sardinas S, Lezcano E, Calderón P, Gamboa Y, Fu L, Gómez W, Schelotto M, Ugaz C, Lobos P, Aguiar SDS, Moreno K, Palma J, Sánchez G, Moschella F, Gassant PYH, Velasquez T, Quintero K, Moreno F, Villarroel M, Fuentes Alabi S, Vasquez L, Challinor J, Chantada GL. International Society of Paediatric Oncology (SIOP) Global Mapping Programme: Latin American Society of Pediatric Oncology (SLAOP) country-level report. Pediatr Blood Cancer 2024; 71:e30973. [PMID: 38556746 DOI: 10.1002/pbc.30973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Latin American countries are improving childhood cancer care, showing strong commitment to implement the Global Initiative for Childhood Cancer, but there are scant publications of the situation at a continental level. METHODS As part of the International Society of Paediatric Oncology Global Mapping project, delegates of each country participating in the Latin American Society of Pediatric Oncology (SLAOP) and chairs of national pediatric oncology societies and cooperative groups were invited to provide information regarding availability of national pediatric cancer control programs (NPCCP), pediatric oncology laws, pediatric oncology tumor registries, and training programs and support to diagnosis and treatment. RESULTS Nineteen of the 20 countries participating in SLAOP responded. National delegates reported nine countries with NPCCP and four of them were launched in the past 5 years. National pediatric tumor registries are available in eight countries, and three provided published survival results. Fellowship programs for training pediatric oncologists are available in 12 countries. National delegates reported that eight countries provide support to most essential diagnosis and treatments and 11 provide partial or minimal support that is supplemented by civil society organizations. Seven countries have a pediatric oncology law. There are three international cooperative groups and four national societies for pediatric oncology. CONCLUSION Despite many challenges, there were dramatic advances in survivorship, access to treatment, and availability of NPCCP in Latin America. Countries with highest social development scores in general provide more complete support and are more likely to have NPCCP, training programs, and reported survival results.
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Affiliation(s)
| | - Maite Gorostegui
- Hospital Sant Joan de Déu, Pediatric Cancer Center Barcelona (PCCB), Barcelona, Spain
| | | | | | - Diana Valencia
- Department of Pediatric Oncology, IMAT Oncomedica AUNA, Monteria, Hospital Universitario de Santander, Bucaramanga, Colombia
| | | | | | | | - Carla Macedo
- Institute of Pediatric Oncology (IOP/GRAACC), São Paulo, Brazil
| | | | - Susan Sardinas
- Hospital del Niño Dr Ovidio Aliaga Uria, La Paz, Bolivia
| | - Eva Lezcano
- Hospital Central Del Instituto de Previsión Social (IPS), Asunción, Paraguay
| | | | - Yessika Gamboa
- Oncology Unit, National Children's Hospital, San José, Costa Rica
| | - Ligia Fu
- Hospital Escuela, Tegucigalpa, Honduras
| | - Wendy Gómez
- National Cancer Institute-INCART, Santo Domingo, Dominican Republic
| | | | - Cecilia Ugaz
- Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
| | | | | | | | - Julia Palma
- Hospital Dr Luis Calvo Mackenna, Santiago, Chile
| | | | - Filomena Moschella
- Hospital Universitario Dr Luis Razetti, Barcelona Edo Anzoategui, Barcelona, Venezuela
| | | | - Thelma Velasquez
- Unidad Nacional de Oncologia Pediátrica (UNOP), Guatemala City, Guatemala
| | - Karina Quintero
- Children's Hospital Dr Jose Renan Esquivel, Panama City, Panama
| | | | | | - Soad Fuentes Alabi
- Hospital Nacional de Ninos Benjamin Bloom y Centro Medico Ayudame a Vivir, San Salvador, El Salvador
| | - Liliana Vasquez
- Department of Noncommunicable Diseases and Mental Health, Unit of Noncommunicable Diseases, Pan American Health Organization/World Health Organization, Washington, District of Columbia, USA
| | - Julia Challinor
- University of California San Francisco, San Francisco, California, USA
| | - Guillermo L Chantada
- Hospital Sant Joan de Déu, Pediatric Cancer Center Barcelona (PCCB), Barcelona, Spain
- Hospital Pereira Rosell Fundación Perez-Scremini, Montevideo, Uruguay
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Garin JPL, Sampor C, Grigorovski N, Ceciliano A, Fandiño A, Ossandon D, Perez V, Caixeta R, Neto JCA, Alarcón S, Silva S, Teixeira L, Antoneli CG, Mattosinho C, Leal-Leal C, Castela G, Requejo F, Catala J, Macedo C, Chantada GL. How we approach conservative treatment of retinoblastoma in South America in the era of local ocular treatments: A consensus of the Grupo America Latina de Oncologia Pediatrica (GALOP). Pediatr Blood Cancer 2023; 70:e30352. [PMID: 37057832 DOI: 10.1002/pbc.30352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 03/01/2023] [Accepted: 03/20/2023] [Indexed: 04/15/2023]
Abstract
Local therapies are increasingly used for ocular preservation in retinoblastoma. In middle-income countries, these techniques pose specific challenges mostly related to more advanced disease at diagnosis. The Grupo de America Latina de Oncología Pediátrica (GALOP) developed a consensus document for the management of conservative therapy for retinoblastoma. Intra-arterial chemotherapy (OAC) is the preferred therapy, except for those with less advanced disease or age younger than 6 months. OAC allowed for a reduction in the use of external beam radiotherapy in our setting. Intravitreal chemotherapy is the preferred treatment for vitreous seeding. Enucleation is the treatment of choice for eyes with advanced disease.
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Affiliation(s)
| | - Claudia Sampor
- Hematology-Oncology Service, Hospital de Pediatría SAMIC Juan P Garrahan, Buenos Aires, Argentina
| | - Nathalia Grigorovski
- Pediatric Oncology Service, Instituto Nacional do Cancer, INCA, Rio de Janeiro, Brazil
| | - Alejandro Ceciliano
- Interventional Neuroradiology, Hospital Universitario Austral, Pilar, Argentina
| | | | - Diego Ossandon
- Ophthalmology Service, Clínica Alemana de, Santiago, Chile
- Ophthalmology Service, Hospital San Juan de Dios, Santiago, Chile
| | - Verónica Perez
- Pediatric Oncology Service, Hospital Santa Casa, Belo Horizonte, Brazil
| | - Rafaela Caixeta
- Ophthalmology Service, Hospital San Juan de Dios, Santiago, Chile
| | | | - Sandra Alarcón
- Pediatric Oncology Service, Instituto Nacional de Enfermedades Neoplasicas, INEN, Lima, Peru
| | - Sonia Silva
- Pediatric Oncology Service, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - Luiz Teixeira
- Ophthalmology Service, Universidade Federal de Sao Paulo Escola Paulista de Medicina, Sao Paulo, Brazil
| | | | - Clarissa Mattosinho
- Pediatric Oncology Service, Instituto Nacional do Cancer, INCA, Rio de Janeiro, Brazil
| | - Carlos Leal-Leal
- Pediatric Oncology Service, Hospital Infantil Privado, Mexico City, Mexico
| | - Guilherme Castela
- Pediatric Oncology Service, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - Flavio Requejo
- Hematology-Oncology Service, Hospital de Pediatría SAMIC Juan P Garrahan, Buenos Aires, Argentina
| | - Jaume Catala
- Ophthalmology Service, Hospital Sant Joan de Deu, Barcelona, Spain
| | - Carla Macedo
- Pediatric Oncology, Universidade Nove de Julho, Sao Paulo, Brazil
| | - Guillermo L Chantada
- Interventional Neuroradiology, Hospital Universitario Austral, Pilar, Argentina
- Ophthalmology Service, Hospital Sant Joan de Deu, Barcelona, Spain
- Instituto de Investigacion en Medicina Traslacional, IIMT, Universidad Austral-CONICET, Pilar, Argentina
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Henniger M, Sisson S, Wetherill M, Hoffman L, Macedo C, Williams B. Staff Reported Highest Rate of Food Insecurity at an Academic Health Campus in Oklahoma City, OK. J Acad Nutr Diet 2020. [DOI: 10.1016/j.jand.2020.06.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nicholson P, Macedo C, Fuller C, Thomas L. Patient satisfaction with a new skin cancer teledermatology service. Clin Exp Dermatol 2020; 45:691-698. [DOI: 10.1111/ced.14191] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/18/2020] [Accepted: 02/04/2020] [Indexed: 12/24/2022]
Affiliation(s)
- P. Nicholson
- Dermatology Department Chelsea and Westminster Hospital NHS Foundation Trust London UK
| | - C. Macedo
- Dermatology Department Chelsea and Westminster Hospital NHS Foundation Trust London UK
| | - C. Fuller
- Dermatology Department Chelsea and Westminster Hospital NHS Foundation Trust London UK
| | - L. Thomas
- Dermatology Department Chelsea and Westminster Hospital NHS Foundation Trust London UK
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Peixoto B, Machado M, Rocha P, Macedo C, Machado A, Baeta É, Gonçalves G, Pimentel P, Lopes E, Monteiro L. Validation of the Portuguese version of Addenbrooke's Cognitive Examination III in mild cognitive impairment and dementia. ADV CLIN EXP MED 2018; 27:781-786. [PMID: 29790690 DOI: 10.17219/acem/68975] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Cognitive assessment is central to the diagnosis of cognitive impairment and dementia, and it should be performed in all patients in the early stages of the disease. Recently, the 3rd version of Addenbrooke's Cognitive Examination (ACE-III) has been developed in order to improve the previous versions. OBJECTIVES The aim of this study was to determine the psychometric properties of the Portuguese version of ACE-III, namely: reliability and discriminative validity (sensitivity and specificity) in the identification of mild cognitive impairment (MCI) and dementia, in comparison to other neuropsychological screening tests, as well as to establish its concurrent and divergent validity. MATERIAL AND METHODS The study encompassed a sample of 90 participants distributed into 3 groups: Control (n = 30), MCI (n = 30) and Dementia (n = 30). In addition to ACE-III, Clinical Dementia Rating (CDR) and Montreal Cognitive Assessment (MoCA) were also used. RESULTS The reliability of ACE-III was very good (α = 0.914). ACE-III significantly differentiated the 3 groups. The receiver operating characteristic (ROC) curves significantly favored ACE-III in comparison to another screening test - MoCA. ACE-III presented higher levels of sensitivity and specificity. Its total score correlated positively with the results on MoCA (ρ = 0.912; p < 0.001) and negatively with a depression scale (ρ = -0.505; p < 0.001). CONCLUSIONS The Portuguese version of ACE-III has very good reliability and high diagnostic capacity in the context of MCI and dementia. ACE-III also holds concurrent and divergent validity.
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Affiliation(s)
- Bruno Peixoto
- University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
- NeuroGen - Center for Health Technology and Services Research (CINTESIS), Porto, Portugal
| | - Milene Machado
- Institute of Research and Advanced Training in Health Sciences and Technologies, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Patricia Rocha
- Institute of Research and Advanced Training in Health Sciences and Technologies, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Carla Macedo
- Institute of Research and Advanced Training in Health Sciences and Technologies, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - António Machado
- Institute of Research and Advanced Training in Health Sciences and Technologies, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Élia Baeta
- The Alto Minho Hospital Center, Viana do Castelo, Portugal
| | | | - Paulo Pimentel
- The Trás-os-Montes and Alto Duoro Hospital Center, Vila Real, Portugal
| | | | - Luis Monteiro
- University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
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Macedo C, Escobar C, Crespo-Félez I, Manjarin R, Kirkwood RN, de Tejerina JCD, Gonzalez-Montaña R, Martinez-Pastor F. 478 Effect of Melatonin Implants on Semen Quality of Assaf Rams during Long-Day Photoperiod. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Macedo
- California Polytechnic State University, San Luis Obispo, CA
| | - C Escobar
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, Leon, Spain
- INDEGSAL, University of León, Leon, Spain
| | - I Crespo-Félez
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, Leon, Spain
- Molecular Biology Department, University of León, Leon, Spain
| | - R Manjarin
- California Polytechnic State University, San Luis Obispo, CA
| | - R N Kirkwood
- School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy, Australia
| | - J C D de Tejerina
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, Leon, Spain
- INDEGSAL, University of León, Leon, Spain
| | - R Gonzalez-Montaña
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, Leon, Spain
- INDEGSAL, University of León, Leon, Spain
| | - F Martinez-Pastor
- INDEGSAL, University of León, Leon, Spain
- Molecular Biology Department, University of León, Leon, Spain
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Macedo C, Turnquist HR, Castillo-Rama M, Zahorchak AF, Shapiro R, Thomson AW, Metes D. Rapamycin augments human DC IL-12p70 and IL-27 secretion to promote allogeneic Type 1 polarization modulated by NK cells. Am J Transplant 2013; 13:2322-33. [PMID: 24034707 PMCID: PMC3842119 DOI: 10.1111/ajt.12351] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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: 01/07/2013] [Revised: 04/29/2013] [Accepted: 05/18/2013] [Indexed: 01/25/2023]
Abstract
Mammalian target of rapamycin kinase inhibitor (mTORi) rapamycin (RAPA) use in transplantation can lead to inflammatory complications in some patients. Our goal was to better understand how mTORi-exposed human monocyte-derived dendritic cells (DC) stimulated with pro-inflammatory cytokines shape T cell allo-immunity. RAPA-conditioned-DC (RAPA-DC) displayed a more immature phenotype than untreated, control (CTRL)-DC. However, subsequent exposure of RAPA-DC to an inflammatory cytokine cocktail (ICC) plus IFN-γ induced a mature Type-1 promoting phenotype, consisting of elevated HLA-DR and co-stimulatory molecules, augmented IL-12p70 and IL-27 production, but decreased IL-10 secretion compared to CTRL-DC. Co-culture of mature (m)RAPA-DC with allogeneic peripheral blood mononuclear cells resulted in significantly increased Type-1 (IFN-γ) responses by T cells. Moreover, NK cells acted as innate modulators that conveyed activating cell-to-cell contact signals in addition to helper (IFN-γ) and/or regulatory (IL-10) soluble cytokines. We conclude that production of IL12-p70, IL-27 and low IL-10 by RAPA-DC allowed us to elucidate how these cytokines as well as NK-DC interaction shapes T cell allo-immunity. Thus, lack of inhibitory NK cell function during allo-specific T cell activation by human ICC + IFN-γ-stimulated RAPA-DC may represent an unwanted effector mechanism that may underlie RAPA-induced inflammatory events in transplant patients undergoing microbial infection or allograft rejection.
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Affiliation(s)
- C. Macedo
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - H. R. Turnquist
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - M. Castillo-Rama
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - A. F. Zahorchak
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - R. Shapiro
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - A. W. Thomson
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - D. Metes
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Correspondence: Diana Metes, MD, Thomas E. Starzl Transplantation Institute, E 1549 Thomas E. Starzl Biomedical Science Tower, 200 Lothrop Street, Pittsburgh PA 15213 USA, Tel: + 1 (412) 648-3291; Fax: +1 (412) 624-6666,
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8
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Sinha R, Macedo C. A cyclical cyst of the umbilicus. Clin Exp Dermatol 2013; 38:686-8. [PMID: 23758487 DOI: 10.1111/ced.12041] [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] [Accepted: 08/18/2012] [Indexed: 11/30/2022]
Affiliation(s)
- R Sinha
- Department of Dermatology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.
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Collares CVA, Evangelista AF, Xavier DJ, Takahashi P, Almeida R, Macedo C, Manoel-Caetano F, Foss MC, Foss-Freitas MC, Rassi DM, Sakamoto-Hojo ET, Passos GA, Donadi EA. Transcriptome meta-analysis of peripheral lymphomononuclear cells indicates that gestational diabetes is closer to type 1 diabetes than to type 2 diabetes mellitus. Mol Biol Rep 2013; 40:5351-8. [DOI: 10.1007/s11033-013-2635-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 04/30/2013] [Indexed: 01/10/2023]
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Bicho MDP, Matos A, Silva AP, Macedo C, Afonso C, Areias MJ, Rebelo I. PP159. In women with previous pregnancy hypertension, cardiovascular risk biomarkers may be modulated by haptoglobin genotype. Pregnancy Hypertens 2012; 2:325. [PMID: 26105480 DOI: 10.1016/j.preghy.2012.04.270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Preeclampsia may affect the risk for future cardiovascular disease. Haptoglobin (Hp), an acute phase protein with genetic polymorphism (Hp1.1, 2.1 and 2.2) synthesized in the hepatocyte and in many tissues, may modulate the risk through the antioxidant and anti-inflammatory differential effects of their genotypes. OBJECTIVES Evaluate some parameters of cardiovascular risk in association with genetic polymorphism of Hp in women with previous preeclampsia (HBP) compared to healthy women during gestation (NBP). METHODS We studied 352 women aged 35±5.48 current year, taking these, 165 presented previous preeclampsia, 2-14 (±6.6) years ago. Genetic polymorphism of Hp was determined from plasma by electrophoresis. The different circulating biomarkers, myeloperoxidase ng/mL (MPO) and nitrates and nitrites (nmol/ml) by ELISA, transaminases - AST and ALT (U/L) and apolipoprotein A and B (mg/dL), uric acid (mg/dl) hs-CRP (mg/L) were determined by conventional methods as well as blood pressure (BP) and anthropometric parameters BMI and hip and waist circumference (WC).Statistical methods were Chi-square, ANOVA (Bonferroni) and t-Student. RESULTS There were no differences in the distribution of phenotypes of Hp between NBP and those with previous hypertension in pregnancy. There were differences between NBP and HBP in the following parameters: Systolic BP (118.9±13.4 vs 135.0±16.5, p<0.001); Diastolic BP (72.2±10.1 vs 85.9±12.0 p<0.001); MPO (62.3±30.9 vs 85.7±39.4, p=0.020); Nitrite (10.1±3.8 vs 19.1±7.0, p<0.001); ALT (18.0±8.0 vs 22.5±12.9, p=0.016); BMI (25.4±4.1 vs 27.1±4.8, p=0.031); WC (82.8±9.9 vs 89.5±15.6, p=0.002); Apo B (0.6±0.1 vs 0.6±0.1, p=0.023). Those values vary with the genotypes of Hp and were observed Hp 1.1 and 2.1 in NBP and HBP respectively: [Systolic BP 119.2±13.7 vs 134.7±18.3 (p<0.001); Diastolic BP (72.8±11.9 vs 86.2±19.4 p<0.001); MPO (57.9±32.5 vs 94.2±42.1, p=0.008); Nitrites (9.6±3.2 vs 20.0±8.5, p<0.001); ALT(17.0±7.2 vs 20.4±8.0, p=0.033); WC (82.4±10.0 vs 90.8±17.6, p=0.004); Apo A (0.9±0.2 vs 1.0±0.2, p=0.011)] and Hp 2.2 in NBP and HBP respectively: [Systolic BP 118.2±13.1 vs 135.6±12.8 (p<0.001); Diastolic BP (70.9±7.2 vs 85.5±16.3 p<0.001); Nitrites (11.5±5.1 vs 18.0±4.4, p<0.001)]. CONCLUSION Women with previous hypertension during pregnancy, presented significant differences in some classic cardiovascular risk biomarkers as well as in some others, associated with the inflammatory process, whose variation may be modulated by haptoglobin functional genetic polymorphism. The history of hypertensive disease in pregnancy may be relevant, in association with these biomarkers to the prevention of cardiovascular disease in particular of postmenopausal women.
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Affiliation(s)
- M D P Bicho
- Genetics Laboratory, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - A Matos
- Genetics Laboratory, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - A P Silva
- Genetics Laboratory, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - C Macedo
- Genetics Laboratory, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - C Afonso
- Genetics Laboratory, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - M J Areias
- Maternidade Júlio Diniz, University of Porto, Oporto, Portugal
| | - I Rebelo
- Institute of Molecular and Cellular Biology, Faculty of Pharmacy, University of Porto, Oporto, Portugal
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Montero J, Macedo C, López-Valverde A, Bravo M. Validation of the oral health impact profile (OHIP-20sp) for Spanish edentulous patients. Med Oral Patol Oral Cir Bucal 2012; 17:e469-76. [PMID: 22143713 PMCID: PMC3476106 DOI: 10.4317/medoral.17498] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 03/21/2011] [Indexed: 11/20/2022] Open
Abstract
Objectives: The purposes of this study are to validate the indicator of Oral Health Impact Profile for edentulous patients (OHIP-20sp) in the Spanish population and to analyze the factorial construct of the prosthetic well-being.
Study Design: A total of twenty-one (n=21) edentulous patients wearing mandibular implant-over dentures on Locator® (LO) and twenty (n=20) with complete dentures (CD) were retrospectively evaluated in this study. All participants were recruited consecutively and were treated in the previous academic year 2009-2010 by professors of the University of Salamanca. Reliability analyses and validity tests were performed in order to evaluate the psychometric properties of OHIP-20sp employing two different total score methods (additional and simple count). A retrospective evaluation of the impact of the prosthetic treatment was captured with an evaluative instrument derived from OHIP-20, and named POST-OHIP-13.
Results: The reliability coefficient (Cronbach’s alpha = 0.91) has shown a high internal consistency. Item-total correlations coefficients ranged from 0.46 and 0.81. Five factors, named as disability, functional comfort, psychosocial impact, pain-discomfort and functional limitations were identified as principal components of the construct, explaining almost 85% of the variance. The 48% of the sample felt at least one impact in an occasional or more frequently manner (generally food packing). The global transition judgment of the prosthetic treatment using the POST-OHIP-13 was significantly higher in group LO than in the CD group.
Conclusions: OHIP-20 seems to be a reliable and valid indicator to measure oral impact and satisfaction in the Spanish edentulous population. The underlying construct is comprised by 5 factors named as disability, functional comfort, psychosocial impact, pain-discomfort and functional limitations.
Key words:Oral health-related quality of life, edentulous, satisfaction, validation.
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Affiliation(s)
- Javier Montero
- Department of Surgery, Faculty of Medicine, University of Salamanca, Spain.
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Meys R, Macedo C, Jones R, Day S, Weir J, Gotch F, Bunker C. Cutaneous human papillomavirus-related immune reconstitution-associated disease in human immunodeficiency virus: an under-recognized phenomenon. Br J Dermatol 2011; 164:458-9. [DOI: 10.1111/j.1365-2133.2010.10109.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Montero J, Macedo C, Rodriguez M, Lopez-Valverde A, Gomez de Diego R, Albaladejo A, Del Castillo R, Maroto J. Prosthetic rehabilitation of an edentulous cleft palate using a denture with a palatal obturator: a clinical report. J Clin Exp Dent 2011. [DOI: 10.4317/jced.3.e365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Van Der Windt DJ, Smetanka C, Macedo C, He J, Lakomy R, Bottino R, Ekser B, Echeverri GJ, Metes D, Ijzermans JNM, Trucco M, Cooper DKC, Lakkis FG. Investigation of lymphocyte depletion and repopulation using alemtuzumab (Campath-1H) in cynomolgus monkeys. Am J Transplant 2010; 10:773-783. [PMID: 20420638 DOI: 10.1111/j.1600-6143.2010.03050.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
As the target CD52 molecule is expressed on erythrocytes of most nonhuman primate strains, using alemtuzumab in these species would cause massive hemolysis. Six cynomolgus monkeys of Indonesian origin, screened by agglutination assay for absence of CD52 on erythrocytes, were administered alemtuzumab in a cumulative dose to a maximum of 60 mg/kg. In two monkeys, mycophenolate mofetil (MMF) was added as maintenance therapy. Complete depletion of T and B lymphocytes (>99.5%) was achieved with 20 mg/kg alemtuzumab and was more profound than in monkeys treated with antithymocyte globulin (n = 5), as quantified by flow cytometry. Repopulation was suppressed by weekly injections of 10 mg/kg. Without MMF, repopulation of CD20(+)B cells and CD8(+)T cells was complete within 2 and 3 months, respectively, and repopulation of CD4(+)T cells was 67% after 1 year. MMF significantly delayed CD4(+)T-cell repopulation. Among repopulating CD4(+) and CD8(+) T cells, a phenotypic shift was observed from CD45RA(hi)CD62L(hi) naïve cells toward CD45RA(lo)CD62L(lo) effector memory cells. In lymph nodes, the depletion of naïve cells was more profound than of memory cells, which may have initiated a proliferation of memory cells. This model offers opportunities to investigate lymphocyte depletion/repopulation phenomena, as well as the efficacy of alemtuzumab in preclinical transplantation models.
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Affiliation(s)
- D J Van Der Windt
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA.,Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Pittsburgh, PA.,Department of Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - C Smetanka
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA
| | - C Macedo
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA
| | - J He
- Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - R Lakomy
- Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - R Bottino
- Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - B Ekser
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA
| | - G J Echeverri
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA.,Transplantation Unit, Fundacion Valle del Lili, Cali, Colombia
| | - D Metes
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA
| | - J N M Ijzermans
- Department of Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - M Trucco
- Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - D K C Cooper
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA
| | - F G Lakkis
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA
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Macedo C, Orkis EA, Popescu I, Elinoff BD, Zeevi A, Shapiro R, Lakkis FG, Metes D. Contribution of naïve and memory T-cell populations to the human alloimmune response. Am J Transplant 2009; 9:2057-66. [PMID: 19624567 DOI: 10.1111/j.1600-6143.2009.02742.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
T-cell alloimmunity plays a dominant role in allograft rejection. The precise contribution of naïve and memory T cells to this response however remains unclear. To address this question, we established an ex vivo flow-cytometric assay that simultaneously measures proliferation, precursor frequency and effector molecule (IFNgamma, granzyme B/perforin) production of alloreactive T cells. By applying this assay to peripheral blood mononuclear cells from healthy volunteers, we demonstrate that the CD4+ and CD8+ populations mount similar proliferative responses and contain comparable frequencies of alloreactive precursors. Effector molecule expression, however, was significantly higher among CD8+ T cells. Analysis of sorted naïve and memory T cells showed that alloreactive precursors were equally present in both populations. The CD8+ effector and terminally differentiated effector memory subsets contained the highest proportion of granzyme B/perforin after allostimulation, suggesting that these cells present a significant threat to transplanted organs. Finally, we demonstrate that virus-specific lymphocytes contribute significantly to the alloresponse in certain responder-stimulator HLA combinations, underscoring the importance of T-cell cross-reactivity in alloimmunity. These results provide a quantitative assessment of the roles of naïve and memory T-cell subsets in the normal human alloimmune response and establish a platform for measuring T-cell alloreactivity pre- and posttransplantation.
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Affiliation(s)
- C Macedo
- Human Immunology Program, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
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Fonseca A, Osswald W, Macedo C. Die Behandlung der Tinea capitis mit hohen Griseofulvindosen. Mycoses 2009. [DOI: 10.1111/j.1439-0507.1968.tb03679.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: 11/29/2022]
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17
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Wiesmayr S, Webber S, Smith L, Popescu I, Macedo C, Metes D. 534: Mechanisms of Tumor Evasion from NK Cell-Mediated Immunity in Pediatric HTx Patients with PTLD. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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18
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Capela JP, Macedo C, Branco PS, Ferreira LM, Lobo AM, Fernanades E, Remião F, Bastos ML, Dirnagl U, Meisel A, Carvalho F. Neurotoxicity mechanisms of ecstasy metabolites. Toxicol Lett 2007. [DOI: 10.1016/j.toxlet.2007.05.132] [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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Resende D, Santo E, Macedo C, Marin J. Prevalence of virulence factors in Escherichia coli strains isolated from the genital tract of healthy cows. ARQ BRAS MED VET ZOO 2007. [DOI: 10.1590/s0102-09352007000300003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The prevalence of virulence genes expressing fimbriae, production of hemolysin, colicin and aerobactin, was determined in Escherichia coli isolates from healthy cow’s genital tract not showing clinical signs of infection. The presence of fimbriae expression genes (pap, sfa, afa) was assayed using specific primers in a polymerase chain reaction; none were detected in any of the isolates. Yet, a prevalence of 90.4%, 69.8%, and 28.5% of virulence factors for colicin, hemolysin and aerobactin respectively, was detected in the isolates. Analysis of the bacterial pathogenicity of isolates from the bovine genital tract may contribute towards the understanding of E. coli behavior.
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Popescu I, Macedo C, Abu-Elmagd K, Shapiro R, Hua Y, Thomson AW, Morelli AE, Storkus WJ, Metes D. EBV-specific CD8+ T cell reactivation in transplant patients results in expansion of CD8+ type-1 regulatory T cells. Am J Transplant 2007; 7:1215-23. [PMID: 17331111 DOI: 10.1111/j.1600-6143.2007.01740.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Posttransplantation lymphoproliferative disorders (PTLD) are life-threatening complications of solid organ transplantation, triggered by EBV infection in chronically immunosuppressed (IS) patients. Our goal is to establish DC-based protocols for adoptive immunotherapy of refractory PTLD, while understanding how the immunosuppressive drug environment may subvert DC-EBV-specific T cell interactions. Type-1 CD8(+) T cells are critical for efficient immune surveillance and control of EBV infection, whereas type-2 or Treg/type-3 responses may provide an environment conductive to disease progression. We have recently reported that chronic IS inhibits DC function in transplant patients. Here, we have analyzed the comparative ability of mature, type-1 polarized DCs (i.e. DC1) generated from quiescent transplant patients or healthy controls, to boost type-1 EBV-specific CD8(+) T cells in vitro. Our results show that unlike healthy controls, where DC1 loaded with MHC class I EBV peptides preferentially reactivate specific type-1 CD8(+) T cells, DC1 generated from transplant patients reactivate EBV-specific CD8(+) T cells that produce both IFN-gamma and IL-10, up-regulate FOXP3 mRNA, and suppress noncognate CD4(+) T-cell proliferation via cell-cell contact. These data support a novel regulatory pathway for anti-EBV T-cell-mediated responses in IS transplant patients, with implications for the design of adoptive immunotherapies in this setting.
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Affiliation(s)
- I Popescu
- Thomas E. Starzl Transplantation Institute and Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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21
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Capela JP, Macedo C, Branco PS, Ferreira LM, Lobo AM, Fernandes E, Remião F, Bastos ML, Dirnagl U, Meisel A, Carvalho F. Neurotoxicity mechanisms of thioether ecstasy metabolites. Neuroscience 2007; 146:1743-57. [PMID: 17467183 DOI: 10.1016/j.neuroscience.2007.03.028] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2007] [Revised: 03/20/2007] [Accepted: 03/22/2007] [Indexed: 10/23/2022]
Abstract
3,4-Methylenedioxymethamphetamine (MDMA or "ecstasy"), is a widely abused, psychoactive recreational drug that is known to induce neurotoxic effects. Human and rat hepatic metabolism of MDMA involves N-demethylation to 3,4-methylenedioxyamphetamine (MDA), which is also a drug of abuse. MDMA and MDA are O-demethylenated to N-methyl-alpha-methyldopamine (N-Me-alpha-MeDA) and alpha-methyldopamine (alpha-MeDA), respectively, which are both catechols that can undergo oxidation to the corresponding ortho-quinones. Ortho-quinones may be conjugated with glutathione (GSH) to form glutathionyl adducts, which can be transported into the brain and metabolized to the correspondent N-acetylcysteine (NAC) adducts. In this study we evaluated the neurotoxicity of nine MDMA metabolites, obtained by synthesis: N-Me-alpha-MeDA, alpha-MeDA and their correspondent GSH and NAC adducts. The studies were conducted in rat cortical neuronal cultures, for a 6 h of exposure period, under normal (36.5 degrees C) and hyperthermic (40 degrees C) conditions. Our findings show that thioether MDMA metabolites are strong neurotoxins, significantly more than their correspondent parent catechols. On the other hand, N-Me-alpha-MeDA and alpha-MeDA are more neurotoxic than MDMA. GSH and NAC conjugates of N-Me-alpha-MeDA and alpha-MeDA induced a concentration dependent delayed neuronal death, accompanied by activation of caspase 3, which occurred earlier in hyperthermic conditions. Furthermore, thioether MDMA metabolites time-dependently increased the production of reactive species, concentration-dependently depleted intracellular GSH and increased protein bound quinones. Finally, thioether MDMA metabolites induced neuronal death and oxidative stress was prevented by NAC, an antioxidant and GSH precursor. This study provides new insights into the neurotoxicity mechanisms of thioether MDMA metabolites and highlights their importance in "ecstasy" neurotoxicity.
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Affiliation(s)
- J P Capela
- REQUIMTE (Rede de Química e Tecnologia), Toxicology Department, Faculty of Pharmacy, University of Porto, Rua Aníbal Cunha, 164, 4099-030 Porto, Portugal.
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Abstract
The occurrence of toxigenic Escherichia coli in raw milk cheese was surveyed in Middle Western Brazil. Fifty samples of cheese from different supermarkets were analyzed for E.coli. The isolates were serotyped and screened for the presence of verotoxigenic E. coli (VTEC) and enterotoxigenic E. coli (ETEC) by Polymerase Chain Reaction (PCR). The susceptibility to thirteen antimicrobial agents was evaluated by the disk diffusion method. E.coli were recovered from 48 (96.0%) of the samples. The serogroups identified were O125 (6.0%), O111 (4.0%), O55 (2.0%) and O119 (2.0%). Three (6.0%) and 1(2.0%) of the E.coli isolates were VTEC and ETEC, respectively. Most frequent resistance was observed to the following antimicrobials: cephalothin (60.0%), nalidixic acid (40.0%), doxycyclin (33.0%), tetracycline (31.0%) and ampicillin (29.0%).
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Suchak R, Macedo C, Glover M, Lawlor F. Intravenous immunoglobulin is effective as a sole immunomodulatory agent in pyoderma gangrenosum unresponsive to systemic corticosteroids. Clin Exp Dermatol 2007; 32:205-7. [PMID: 17342799 DOI: 10.1111/j.1365-2230.2006.02275.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Macedo C, Branco PS, Ferreira LM, Lobo AM, Capela JP, Fernandes E, Bastos MDL, Carvalho F. Synthesis and Cyclic Voltammetry Studies of 3,4-Methylenedioxymethamphetamine (MDMA) Human Metabolites. ACTA ACUST UNITED AC 2007. [DOI: 10.1248/jhs.53.31] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Carla Macedo
- REQUIMTE/CQFB, Departamento de Química, FCT, Universidade Nova de Lisboa
| | - Paula Sério Branco
- REQUIMTE/CQFB, Departamento de Química, FCT, Universidade Nova de Lisboa
| | | | - Ana Maria Lobo
- REQUIMTE/CQFB, Departamento de Química, FCT, Universidade Nova de Lisboa
| | - João Paulo Capela
- REQUIMTE, Departamento de Toxicologia, Faculdade de Farmácia da Universidade do Porto
| | - Eduarda Fernandes
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia da Universidade do Porto
| | | | - Felix Carvalho
- REQUIMTE, Departamento de Toxicologia, Faculdade de Farmácia da Universidade do Porto
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Abstract
BACKGROUND Modifications in social habits together with the increase of emigration have contributed not only to increased dermatophytoses but also to an altered etiology. During the last few years, Braga has suffered a radical change from a rural to a cosmopolitan life-style. METHODS A statistical study of dermatophytoses and the etiology of their causative agents was performed by a retrospective survey carried out among patients of Hospital de São Marcos, Braga, Portugal, from 1983-2002. In this study, a total of 10,003 patients were analyzed. RESULTS Over this period the frequency of dermatophytoses, as defined by the recovery of a dermatophyte in culture, was found to be 23.6%, whereas nondermatophytic infections accounted for 7.0%. Analysis of the clinical forms and the isolated fungi supports that the dermatophyte species have a predilection for certain body areas (P <or= 0.01). Age is a very important factor regarding the occurrence of dermatophytoses (P <or= 0.0001), with a correlation between increasing age and infection, positive for Trichophyton rubrum and negative for Microsporum canis. Overall the gender of the patients is not an association factor for the development of dermatophytoses; however, significant differences were detected in the distribution of some etiologic agents (P <or= 0.05). CONCLUSIONS The results showed the main etiologic agent of dermatophytoses to be Trichophyton rubrum (37.4%). Moreover, dermatophytoses are both decreasing and showing a new profile in Braga, and a pronounced decrease of Trichophyton megninii was observed throughout the study.
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Affiliation(s)
- G L Valdigem
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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27
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Abstract
One hundred seventy-three Escherichia coli strains isolated from calves from northwestern São Paulo State, having diarrhea were examined for the production of thermolabile (LT) and thermostable (ST) enterotoxins and for the presence of virulence factors associated with bovine colibacillosis. Eighty-five (49.1%) of the E.coli strains produced toxins; 53 isolates were detected as producing STa toxin, and 9 also produced LT toxin. By PCR, 23 isolates were shown to harbor only the LT-II gene. Nine (5.2%) isolates harbored Shiga toxin genes: four carried the stx2 gene, four the stx1 gene and one carried both. Three of the isolates showing stx1 also carried the eae gene. Among the E. coli isolates examined for susceptibility to 10 antimicrobial agents, resistance to cephalothin (46.1%), was most commonly observed, followed by resistances to tetracycline (45.7%), trimethoprim-sulfadiazine (43.3%) and ampicilin (41.0%). All isolates showed resistance to at least two antimicrobial agents; multidrug resistance was quite frequently encountered. Results showed that bovine E. coli produces some toxins and virulence factors, some of which may be involved in human disease. The isolates showed a high level of resistance to antimicrobial agents constituting a public health concern.
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Rigobelo EC, Stella AE, Avila FA, Macedo C, Marin JM. Characterization of Escherichia coli isolated from carcasses of beef cattle during their processing at an abattoir in Brazil. Int J Food Microbiol 2006; 110:194-8. [PMID: 16720056 DOI: 10.1016/j.ijfoodmicro.2006.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 03/25/2006] [Indexed: 10/24/2022]
Abstract
Beef carcass sponge samples collected between March 2003 and August 2005 at an abattoir in Brazil were surveyed for the presence of Shiga toxin-producing Escherichia coli (STEC). Only one carcass among the 80 tested showed a STEC, stx2-encoding gene by PCR amplification. The frequency of carcass contamination by E. coli during processing was tested at three situations, respectively: preevisceration, postevisceration and postprocessing, during the rain and dry seasons. The prevalence of E. coli at the three points was of 30.0%, 70.0%, 27.5% in the rain season and of 22.5%, 55.0%, 17.5% during the dry season, respectively. The E. coli isolates exhibited a high level (45.0%) of multidrug resistance to two or more antimicrobial agents.
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Affiliation(s)
- E C Rigobelo
- Faculdade de Zootecnia de Dracena, Universidade Estadual Paulista, SP, Brazil
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Marinho LC, Patrício FRDS, Jesus-Garcia Filho R, Petrilli AS, Odashiro LN, Macedo C, Alves MTS. Clinicopathologic study and Ki-67 proliferative marker evaluation in human osteosarcomas. J Bras Patol Med Lab 2005. [DOI: 10.1590/s1676-24442005000600008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Abstract
AIMS To determine the prevalence and molecular characteristics of Shiga toxin-producing Escherichia coli (STEC) isolates from bovine mastitic milk in Brazil. METHODS AND RESULTS A total of 2144 milk samples from dairy cattle showing mastitis were screened for the presence of E. coli. A total of 182 E. coli isolates were selected and examined. All were subjected to dot blot analysis using the CVD419 probe for the detection of the enterohaemolysin (hly) gene, and to a multiplex PCR for the detection of stx1, stx2 and eaeA genes. STEC were isolated from 22 (12.08%) milk samples. All the STEC isolates were tested for sensibility to 10 antimicrobials; the resistances most commonly observed were to cephalothin (86.3%), tetracycline (63.6%) and doxycycline (63.6%). CONCLUSION STEC isolates were found in bovine mastitic milk in Brazil. SIGNIFICANCE AND IMPACT OF THE STUDY STEC isolates from mastitic milk were potentially pathogenic for human in that they belonged to serogroups associated with diarrhoea and haemolytic-uraemic syndrome, some of them were stx2, eaeA and hly positive.
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Affiliation(s)
- W M Lira
- Departamento de Microbiologia, Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, Universidade Paulista, São Paulo, Brazil
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Sandrin-Garcia P, Macedo C, Martelli LR, Ramos ES, Guion-Almeida ML, Richieri-Costa A, Passos GAS. Recurrent 22q11.2 deletion in a sibship suggestive of parental germline mosaicism in velocardiofacial syndrome. Clin Genet 2002; 61:380-3. [PMID: 12081724 DOI: 10.1034/j.1399-0004.2002.610511.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [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: 11/23/2022]
Abstract
Deletions of chromosome 22q11.2 are recognized as the main cause of a number of clinical phenotypes, including velocardiofacial syndrome (VCFS) and DiGeorge syndrome (DGS). Velocardiofacial syndrome is a relatively common developmental disorder that is characterized by craniofacial anomalies and conotruncal heart defects. Most 22q11.2 deletions occur sporadically, although the deletion may be transmitted in some cases. The present performed a molecular analysis in one family including a patient with clinical diagnosis of VCFS and his sister with a suggestive phenotype. Six polymorphic 22q11.2 markers (i.e. D22S420, D22S264, D22S941, D22S306, D22S425 and D22S257) were used for genotype analysis of the DNA from the patients and unaffected relatives. The results revealed a 22q11.2 deletion in the patient and his sister from one of six markers (i.e. D22S941). Genotype analysis demonstrated that the deletion in this sib was of maternal origin. The results suggest that the mother probably has gonadal mosaicism. The other relatives present normal DNA profiles for all markers. These results have implications for genetic counseling because of a risk of transmission by germ cells carrying the deletion, even when parents present with a normal DNA profile in their blood cells.
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Affiliation(s)
- P Sandrin-Garcia
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Genética, Ribeirão Preto, SP, Brazil
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Abstract
The assembling of T-cell receptor (TCR alpha/beta and gamma/delta) genes depends on the V(D)J recombination occurring in early thymocytes during thymus ontogeny. The V(D)J recombination reaction is directed by a recombinase complex from the RAG-1 and RAG-2 genes, and is modulated by several other gene products. Due to the essential role of the TCRbeta in thymocyte differentiation, it is important to define with precision the temporal emergence of the TCRbeta recombination in normal non-manipulated mouse strains. We analysed the onset of V(D)J recombination between TCRVbeta8.1 and Jbeta2.1 gene segments during fetal development of the thymus in three non-manipulated inbred strains of mice; BALB-c, C57BL/6 and CBA. We show that the emergence of the V(D)J recombination at the TCRbeta locus differs among strains, suggesting an in vivo role of the different genetic backgrounds in driving gene rearrangements.
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Affiliation(s)
- C Macedo
- Departamento Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Brazil
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Magalhaes AF, Macedo C, Hauck JR, Carvalhaes A, De Nucci G, Magna LA, Pedrazzoli J. Acid suppression with ranitidine plus oral triple therapy improves ulcer healing but not Helicobacter pylori eradication. Hepatogastroenterology 1998; 45:2161-4. [PMID: 9951885] [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: 04/12/2023]
Abstract
BACKGROUND/AIMS To evaluate whether the addition of 2 weeks of ranitidine to a 1-week oral triple therapy (OTT) regimen improved ulcer healing and H. pylori eradication. METHODOLOGY Two hundred and eleven consecutive patients with an endoscopic diagnosis of active duodenal ulcer (DU) and a positive antrum biopsy for H. pylori were enrolled. Those attending the Hospital Vera Cruz (Group A, n=142) received a 14-day course of ranitidine (150 mg after breakfast and dinner) plus a 1-week OTT, consisting of bismuth subcitrate, (240 mg after the 3 meals), tetracycline (500 mg, 10 min before the three meals and at bedtime), and furazolidone (200 mg after breakfast and dinner). Patients from the Hospital das Clinicas (Group B, n=69) received the same OTT as Group A but without ranitidine. Patients underwent endoscopy again on average 40 days (range: 30-60 days) after completing therapy in order to assess ulcer healing and H. pylori status. RESULTS Both schedules were equally efficient in eradicating H. pylori with 90% (128/142) eradication in group A, and 84% (58/69) in group B (p=0.2). In contrast, the addition of ranitidine to OTT improved ulcer healing when compared with OTT alone (96%, 137/142, vs. 70%, 48/69; p<0.001). CONCLUSIONS Our results demonstrate that the association of acid suppression, obtained with 2 week ranitidine administration with OTT improved ulcer healing but did not enhance H. pylori eradication.
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Affiliation(s)
- A F Magalhaes
- Gastrocentro, UNICAMP, and Hospital Vera Cruz, Braganca Paulista, Brazil
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Orloff MJ, Macedo A, Macedo C, Yamanaka N, Huang YT, Huang DG, Leng XS, Stieber A, Kreidieh I, Greenleaf G. Prevention, stabilization, and reversal of the metabolic disorders and secondary complications of diabetes by pancreas transplantation. Transplant Proc 1988; 20:868-73. [PMID: 3126583] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M J Orloff
- Department of Surgery, School of Medicine, University of California, San Diego
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Orloff MJ, Macedo C, Macedo A, Greenleaf GE. Comparison of whole pancreas and pancreatic islet transplantation in controlling nephropathy and metabolic disorders of diabetes. Ann Surg 1987; 206:324-34. [PMID: 3115206 PMCID: PMC1493186 DOI: 10.1097/00000658-198709000-00010] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To compare the long-term effectiveness of whole pancreas transplantation and pancreatic islet transplantation in controlling the metabolic disorders and preventing the kidney lesions of alloxan diabetes, metabolic and morphologic studies were performed in four groups of rats: (1) NC-116 nondiabetic controls; (2) DC-273 untreated alloxan-diabetic controls; (3) PDT-182 rats that received syngeneic pancreaticoduodenal transplants not long after induction of diabetes with alloxan; and (4) IT-92 rats that received an intraportal injection of at least 1500 and usually 2000 syngeneic pancreatic islets soon after induction of diabetes with alloxan. Each month for 24 months after diabetes was well established, body weight and plasma concentrations of glucose and insulin were measured, and five lesions were scored by light microscopy in 50 glomeruli and related tubules in each kidney by a "blind" protocol: glomerular basement membrane thickening, mesangial enlargement, Bowman's capsule thickening, Armanni-Ebstein lesions of the tubules, and tubular protein casts. There were progressive and highly significant increases in the incidence and severity of all five kidney lesions in the diabetic control rats compared with the nondiabetic control rats. No significant differences were found between the kidneys of Group PDT and those of Group NC, demonstrating that whole pancreas transplantation prevented all of the diabetic kidney lesions throughout the 2-year study period. In contrast, within 3-9 months after pancreatic islet transplantation and thereafter, the incidence and severity of the five diabetic kidney lesions were similar in Group IT and Group DC. Whole pancreas transplantation produced precise metabolic control of diabetes throughout the 24 months of study, whereas pancreatic islet transplantation did not accomplish complete metabolic control, particularly beyond the first several months after transplantation. The difference in the completeness of metabolic control achieved by the two types of transplants is the most likely explanation for their sharp difference in effectiveness in preventing diabetic nephropathy.
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Abstract
Psychiatric aspects of patients with Parkinsonism treated with L-dopa are described. These include acute psychosis in patients with or without previous psychiatric illness and worsening or improvement of pre-existing psychiatric conditions. Therapeutic management is discussed The relevance of these studies to the understanding of the psychiatric aspects of Parkinsonism in general is discussed.
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