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Monteagudo J, Pereira A, Reverter JC, Pijoan J, Tusell J, Puig L, Ordinas A, Castillo R. Thrombin Generation and Fibrinolysis in the Thrombotic Thrombocytopenic Purpura and the Hemolytic-Uremic Syndrome. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1646451] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryProthrombin fragment 1+2 (F1+2) and thrombin-antithrombin complexes (TAT), as well as other coagulation and fibrinolysis parameters, were studied in a series of 13 patients affected by thrombotic thrombocytopenic purpura (TTP) or hemolytic-uremic syndrome (HUS). Fragment F1+2 was found to be increased in all patients at diagnosis (patients' range, 1.21-19.03 nmol/1; normal limits, 0.28-1.08 nmol/1), and remained also higher than normal after treatment with plasma exchange (patients' range, 1.5-4.01 nmol/1). Even though the analysis of fibrinolysis markers did not show a definite state of hypo or hyperfibrinolysis in the systemic circulation, enhanced circulating D-dimer levels (0.53-12.6 ug/ml, normal levels of 0.03-0.29 εg/ml) indicated that a certain grade of fibrin lysis was present at previously formed thrombi. Plasma PAI-1 activities either on admission (9.2-38.2 U/ml) and after plasma exchange therapy (2.6-38.6 U/ml) showed a behavior irrespective of t-PA: Ag changes, and post-plasmapheresis values remained high only in patients with fatal neurological outcome. Nevertheless, no correlations between clinical and laboratory data could be established useful for the TTP/HUS prognosis. We conclude that increased thrombin generation occurring in damaged areas is appropriately inhibited by antithrombin III in the systemic circulation, avoiding consumption coagulopathy to develop in uncomplicated patients. In addition, fibrinolysis data suggest that elevated PAI-1 may decisively favor the development of microvascular thrombi.
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Kelly S, Jahanshad N, Zalesky A, Kochunov P, Agartz I, Alloza C, Andreassen OA, Arango C, Banaj N, Bouix S, Bousman CA, Brouwer RM, Bruggemann J, Bustillo J, Cahn W, Calhoun V, Cannon D, Carr V, Catts S, Chen J, Chen JX, Chen X, Chiapponi C, Cho KK, Ciullo V, Corvin AS, Crespo-Facorro B, Cropley V, De Rossi P, Diaz-Caneja CM, Dickie EW, Ehrlich S, Fan FM, Faskowitz J, Fatouros-Bergman H, Flyckt L, Ford JM, Fouche JP, Fukunaga M, Gill M, Glahn DC, Gollub R, Goudzwaard ED, Guo H, Gur RE, Gur RC, Gurholt TP, Hashimoto R, Hatton SN, Henskens FA, Hibar DP, Hickie IB, Hong LE, Horacek J, Howells FM, Hulshoff Pol HE, Hyde CL, Isaev D, Jablensky A, Jansen PR, Janssen J, Jönsson EG, Jung LA, Kahn RS, Kikinis Z, Liu K, Klauser P, Knöchel C, Kubicki M, Lagopoulos J, Langen C, Lawrie S, Lenroot RK, Lim KO, Lopez-Jaramillo C, Lyall A, Magnotta V, Mandl RCW, Mathalon DH, McCarley RW, McCarthy-Jones S, McDonald C, McEwen S, McIntosh A, Melicher T, Mesholam-Gately RI, Michie PT, Mowry B, Mueller BA, Newell DT, O'Donnell P, Oertel-Knöchel V, Oestreich L, Paciga SA, Pantelis C, Pasternak O, Pearlson G, Pellicano GR, Pereira A, Pineda Zapata J, Piras F, Potkin SG, Preda A, Rasser PE, Roalf DR, Roiz R, Roos A, Rotenberg D, Satterthwaite TD, Savadjiev P, Schall U, Scott RJ, Seal ML, Seidman LJ, Shannon Weickert C, Whelan CD, Shenton ME, Kwon JS, Spalletta G, Spaniel F, Sprooten E, Stäblein M, Stein DJ, Sundram S, Tan Y, Tan S, Tang S, Temmingh HS, Westlye LT, Tønnesen S, Tordesillas-Gutierrez D, Doan NT, Vaidya J, van Haren NEM, Vargas CD, Vecchio D, Velakoulis D, Voineskos A, Voyvodic JQ, Wang Z, Wan P, Wei D, Weickert TW, Whalley H, White T, Whitford TJ, Wojcik JD, Xiang H, Xie Z, Yamamori H, Yang F, Yao N, Zhang G, Zhao J, van Erp TGM, Turner J, Thompson PM, Donohoe G. Widespread white matter microstructural differences in schizophrenia across 4322 individuals: results from the ENIGMA Schizophrenia DTI Working Group. Mol Psychiatry 2018; 23:1261-1269. [PMID: 29038599 PMCID: PMC5984078 DOI: 10.1038/mp.2017.170] [Citation(s) in RCA: 439] [Impact Index Per Article: 73.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 05/02/2017] [Accepted: 06/07/2017] [Indexed: 12/15/2022]
Abstract
The regional distribution of white matter (WM) abnormalities in schizophrenia remains poorly understood, and reported disease effects on the brain vary widely between studies. In an effort to identify commonalities across studies, we perform what we believe is the first ever large-scale coordinated study of WM microstructural differences in schizophrenia. Our analysis consisted of 2359 healthy controls and 1963 schizophrenia patients from 29 independent international studies; we harmonized the processing and statistical analyses of diffusion tensor imaging (DTI) data across sites and meta-analyzed effects across studies. Significant reductions in fractional anisotropy (FA) in schizophrenia patients were widespread, and detected in 20 of 25 regions of interest within a WM skeleton representing all major WM fasciculi. Effect sizes varied by region, peaking at (d=0.42) for the entire WM skeleton, driven more by peripheral areas as opposed to the core WM where regions of interest were defined. The anterior corona radiata (d=0.40) and corpus callosum (d=0.39), specifically its body (d=0.39) and genu (d=0.37), showed greatest effects. Significant decreases, to lesser degrees, were observed in almost all regions analyzed. Larger effect sizes were observed for FA than diffusivity measures; significantly higher mean and radial diffusivity was observed for schizophrenia patients compared with controls. No significant effects of age at onset of schizophrenia or medication dosage were detected. As the largest coordinated analysis of WM differences in a psychiatric disorder to date, the present study provides a robust profile of widespread WM abnormalities in schizophrenia patients worldwide. Interactive three-dimensional visualization of the results is available at www.enigma-viewer.org.
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Pinto S, Pereira A, Santos J, Moutinho L, Castro I, Freitas H, Melo J, Torres M, Costa M, Veloso J. EP-2247: In vivo dosimetry in APBI brachytherapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32556-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Bousman CA, Cropley V, Klauser P, Hess JL, Pereira A, Idrizi R, Bruggemann J, Mostaid MS, Lenroot R, Weickert TW, Glatt SJ, Everall IP, Sundram S, Zalesky A, Weickert CS, Pantelis C. Neuregulin-1 (NRG1) polymorphisms linked with psychosis transition are associated with enlarged lateral ventricles and white matter disruption in schizophrenia. Psychol Med 2018; 48:801-809. [PMID: 28826413 DOI: 10.1017/s0033291717002173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Two single-nucleotide polymorphisms (SNPs) (rs4281084 and rs12155594) within the neuregulin-1 (NRG1) gene have been associated with psychosis transition. However, the neurobiological changes associated with these SNPs remain unclear. We aimed to determine what relationship these two SNPs have on lateral ventricular volume and white matter integrity, as abnormalities in these brain structures are some of the most consistent in schizophrenia. METHODS Structural (n = 370) and diffusion (n = 465) magnetic resonance imaging data were obtained from affected and unaffected individuals predominantly of European descent. The SNPs rs4281084, rs12155594, and their combined allelic load were examined for their effects on lateral ventricular volume, fractional anisotropy (FA) as well as axial (AD) and radial (RD) diffusivity. Additional exploratory analyses assessed NRG1 effects on gray matter volume, cortical thickness, and surface area throughout the brain. RESULTS Individuals with a schizophrenia age of onset ⩽25 and a combined allelic load ⩾3 NRG1 risk alleles had significantly larger right (up to 50%, p adj = 0.01) and left (up to 45%, p adj = 0.05) lateral ventricle volumes compared with those with allelic loads of less than three. Furthermore, carriers of three or more risk alleles, regardless of age of onset and case status, had significantly reduced FA and elevated RD but stable AD in the frontal cortex compared with those carrying fewer than three risk alleles. CONCLUSIONS Our findings build on a growing body of research supporting the functional importance of genetic variation within the NRG1 gene and complement previous findings implicating the rs4281084 and rs12155594 SNPs as markers for psychosis transition.
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González-Pérez M, Ooi SY, Martins S, Prates Ramalho JP, Pereira A, Caldeira AT. Gaining insight into the photophysical properties of a coumarin STP ester with potential for bioconjugation. NEW J CHEM 2018. [DOI: 10.1039/c8nj03548b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The photophysical properties of a coumarin 392 4-sulfotetrafluorophenyl ester, C392STP (sodium (E/Z)-4-(4-(2-(6,7-dimethoxycoumarin-3-yl)vinyl)-benzoyl)-2,3,5,6-tetrafluoro-benzenesulfonate), an amine reactive coumarine with potential for bioconjungation, have been studied in different solvents.
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Sridharan S, Pereira A, Hay K, Dey A, Chandurkar D, Veldhuizen S, Nakaima A. Heterogeneities in utilization of antenatal care in Uttar Pradesh, India: the need to contextualize interventions to individual contexts. Glob Health Action 2018; 11:1517929. [PMID: 30422101 PMCID: PMC6237162 DOI: 10.1080/16549716.2018.1517929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 08/21/2018] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND This paper explores the heterogeneities in antenatal care (ANC) utilization in India's most populated state, Uttar Pradesh. Taking an intersectionality lens, multiple individual- and district-level factors are used to identify segments of any antenatal care usage in Uttar Pradesh Objective: This paper seeks to understand the multilevel contexts of ANC utilization. The planning and programming challenge is that such knowledge of contextual specificity is rarely known upfront at the initial stages of planning or implementing an intervention. Exploratory data analysis might be needed to identify such contextual specificity. METHODS Tree-structured regression methods are used to identify segments and interactions between factors. The results from the tree-structured regression were complemented with multilevel models that controlled for the clustering of individuals within districts. RESULTS Heterogeneities in utilization of any ANC were observed. The multiple segments of ANC utilization that were developed went from a low utilization of 23.7% for respondents who were not literate and did not have home ownership to a high of 82.4% for respondents who were literate and at the highest level of wealth. Key variables that helped define the segments of ANC utilization include: woman's literacy, ownership of home, wealth index, and district-level sex ratio. Based on the multilevel model of any ANC utilization, cross-level interactions also were obtained between sex ratio and ownership of home as well as between sex ratio and literacy. Increases in sex ratio increased the influence of ownership of home on any ANC, while increases in sex ratio reduced the impact of woman's literacy on receiving any ANC. CONCLUSION We argue that a focus on heterogeneous segments of utilization can help build knowledge of the mechanisms that underlie inequities in maternal health utilization. Such knowledge of heterogeneity needs to be incorporated in contextualizing interventions to meet a variety of recipients' needs.
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Cônsolo N, Gandra J, Gardinal R, Freitas Júnior J, Takiya C, Rennó F, Pereira A. Effect of different dietary inclusion levels of whole raw soyabean
on ruminal fermentation and nutrient utilization in Nelore steers. JOURNAL OF ANIMAL AND FEED SCIENCES 2017. [DOI: 10.22358/jafs/80904/2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Trinka E, Kowacs P, Ben-Menachem E, Elger C, Moreira J, Pinto R, Ikedo F, Pereira A, Rocha JF, Soares-da-Silva P. PO046 Safety and tolerability of eslicarbazepine acetate as monotherapy in patients with newly diagnosed partial-onset seizures. Journal of Neurology, Neurosurgery and Psychiatry 2017. [DOI: 10.1136/jnnp-2017-abn.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hachul H, Polesel D, Tock L, Carneiro G, Pereira A, Zanella M, Tufik S, Togeiro S. Sleep disorders in women with polycystic ovary syndrome: the influence of obesity and hyperandrogenism. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ben-Menachem E, Trinka E, Kowacs P, Elger C, Moreira J, Pinto R, Ikedo F, Pereira A, Rocha JF, Soares-da-Silva P. PO043 Efficacy of eslicarbazepine acetate versus controlled-release carbamazepine as monotherapy in patients with newly diagnosed partial-onset seizures. J Neurol Psychiatry 2017. [DOI: 10.1136/jnnp-2017-abn.76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Santos C, Pereira A, Pinto R, Trigueiros M, Lemos R, Silva C. Cirurgia paliativa do ombro em paralisia obstétrica do plexo braquial. REVISTA IBEROAMERICANA DE CIRUGÍA DE LA MANO 2017. [DOI: 10.1055/s-0037-1606764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
A paralisia obstétrica do plexo braquial é rara originando disfunção grave e défice marcado da rotação externa e da abdução do ombro. Reviram-se retrospectivamente 11 casos de paralisia obstétrica do plexo braquial (sete com paralisia alta e quatro com paralisia completa) tratados cirurgicamente pela técnica de L’Épiscopo modificada por Hoffer. Estes resultados foram padronizados segundo o tipo de lesão (grupo A – lesão alta; grupo B – lesão completa) e a idade (grupo I ≤ 4 anos; grupo II > 4 anos). O seguimento médio foi de 35 meses. A idade média aquando da cirurgia era de 6,5 anos (r= 2–11). Todos, excepto um, apresentaram melhoria funcional, com aumento da pontuação média de Mallet de 4,6 pontos. Os dois subtipos de paralisia tiveram pontuação média de Mallet sobreponível (grupo A – 4.6; grupo B – 4.7); a idade aquando da cirurgia não influenciou o resultado clínico (pontuação média (grupo I) – 4.8; (grupo II) – 4.4). Não foram registadas complicações. A técnica de L’Épiscopo modificada por Hoffer é eficaz no tratamento paliativo do ombro em paralisia obstétrica do plexo braquial, permitindo recuperação da abdução e rotação externa do ombro. Está indicada em paralisias altas e completas, quando associada a outras cirurgias de recuperação da função do cotovelo, punho e/ou mão. Idade superior a 4 anos não contra-indica a cirurgia desde que sejam excluídas alterações da articulação glenoumeral.
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Sanz C, Pereira A, Faúndez A, Ordinas A. Prolonged Holding of Whole Blood at 22 °C Does Not Increase Activation in Platelet Concentrates. Vox Sang 2017. [DOI: 10.1159/000461998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sousa J, Monteiro J, Neto M, Correia A, Rodrigues R, Pereira E, Gomes S, Pereira A, Faria A, Silva B, Caires G, Freitas D, Santos N, Serrao M, Pereira D. P6488Diabetes mellitus and acute coronary syndrome: prognostic impact at 5-year follow-up. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Pereira A, Neto M, Rodrigues R, Monteiro J, Sousa A, Freitas S, Henriques E, Borges S, Freitas A, Ornelas I, Pereira D, Palma Dos Reis R, Mendonca M. 959Coronary artery disease risk according to genetic risk score deciles, Age and cardiovascular risk factors. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Taveira RZ, Moraes J, Silva RMD, Amaral A, Mendonça F, Ponte F, Carvalho F, Pereira A. 026 Evaluation of heat tolerance of Tabapuã bovines in the central region of Brazil. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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116
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Olivetti N, Sacilotto L, Darrieux F, Wulkan F, Pessente G, Oliveira T, Pinheiro M, Wu T, Hachul D, Hardy C, Pereira A, Scanavacca M. P1698Electrocardiographic correlation and clinical aspects in Andersen-Tawil Syndrome: a case series description. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sousa J, Monteiro J, Neto M, Correia A, Rodrigues R, Pereira E, Pereira A, Gomes S, Faria A, Santos N, Serrao M, Silva B, Caires G, Freitas D, Pereira D. P6450Haemorrhagic risk in patients presenting with acute coronary syndrome and renal dysfunction: which score is a better predictor of bleeding risk on a daily-basis? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rodrigues Neto M, Correia A, Sousa J, Ponte Monteiro J, Rodrigues R, Serrao M, Santos N, Pereira A, Silva G, Gomes S, Drumond Freitas A, Pereira D. P6439Acute coronary syndromes and high bleeding risk: impact on clinical and invasive management and on long term prognosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Pereira A, Palma Dos Reis R, Neto M, Rodrigues R, Monteiro J, Henriques E, Rodrigues M, Freitas A, Ornelas I, Borges S, Pereira D, Mendonca M. P6214Genetic risk score, family history of coronary artery disease and cardiovascular risk factors. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mir E, Palomo M, Rovira M, Pereira A, Escolar G, Penack O, Holler E, Carreras E, Diaz-Ricart M. Endothelial damage is aggravated in acute GvHD and could predict its development. Bone Marrow Transplant 2017. [PMID: 28650450 DOI: 10.1038/bmt.2017.121] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of the present study was to explore whether there is enhanced endothelial dysfunction in patients developing acute GvHD (aGvHD) after allogeneic hematopoietic cell transplantation (allo-HCT) and to identify biomarkers with predictive and/or diagnostic value. In in vitro experiments, endothelial cells (ECs) were exposed to serum from patients with (aGvHD, n=31) and without (NoGvHD, n=13) aGvHD, to evaluate changes in surface adhesion receptors, the reactivity of the extracellular matrix by measuring the presence of Von Willebrand factor (VWF) and platelet adhesion, and the activation of intracellular signaling proteins. Plasma levels of VWF, ADAMTS-13, TNF receptor 1 (TNFR1), soluble vascular cell adhesion molecule 1 and soluble intercellular adhesion molecule 1 were also measured. In vitro results showed a more marked proinflammatory and prothrombotic phenotype in ECs in association with aGvHD. Regarding circulating biomarkers, levels of VWF and TNFR1 above an optimal cutoff score, taken independently or combined, at day 7 after allo-HCT, would be able to positively predict that around 90% of patients will develop aGvHD. Our results demonstrate that endothelial damage is aggravated in those allo-HCT recipients developing aGvHD, and that VWF and TNFR1 are promising predictive aGvHD biomarkers. These findings could contribute to improve the understanding of the pathophysiology of aGvHD.
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Sanz CC, Pereira A. Age of blood and survival after massive transfusion. Transfus Clin Biol 2017; 24:449-453. [PMID: 28529005 DOI: 10.1016/j.tracli.2017.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/06/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND Massive transfusion is the clinical scenario where the presumed adverse effects of stored blood are expected to be more evident because the whole patient's blood volume is replaced by stored blood. OBJECTIVE To analyse the association between age of transfused red blood cells (RBC) and survival in massively transfused patients. METHODS In this retrospective study, clinical and transfusion data of all consecutive patients massively transfused between 2008 and 2014 in a large, tertiary-care hospital were electronically extracted from the Transfusion Service database and the patients' electronic medical records. Prognostic factors for in-hospital mortality were investigated by multivariate logistic regression. RESULTS A total of 689 consecutive patients were analysed (median age: 61 years; 65% males) and 272 died in-hospital. Projected mortality at 2, 30, and 90 days was 21%, 35% and 45%, respectively. The odds ratio (OR) for in-hospital mortality among patients who survived after the 2nd day increased with patient age (OR: 1.037, 95% CI: 1.021-1.054; per year P<0.001), with the number of RBC unit transfused in the first 48hours (OR: 1.060; 95% CI: 1.038-1.020 per unit; P<0.001), and the percentage of such RBC stored for more than 28 days (1.010, 95% CI: 1.005-1.018 per percent point; P=0.01). CONCLUSION Mortality after massive transfusion was associated with a higher proportion of old RBCs transfused in the first 48hours. Other factors associated with poor prognosis were older patient's age and larger volumes of transfused RBCs.
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Gibson DG, Farrenkopf BA, Pereira A, Labrique AB, Pariyo GW. The Development of an Interactive Voice Response Survey for Noncommunicable Disease Risk Factor Estimation: Technical Assessment and Cognitive Testing. J Med Internet Res 2017; 19:e112. [PMID: 28476724 PMCID: PMC5438455 DOI: 10.2196/jmir.7340] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/17/2017] [Accepted: 02/19/2017] [Indexed: 11/30/2022] Open
Abstract
Background The rise in mobile phone ownership in low- and middle-income countries (LMICs) presents an opportunity to transform existing data collection and surveillance methods. Administering surveys via interactive voice response (IVR) technology—a mobile phone survey (MPS) method—has potential to expand the current surveillance coverage and data collection, but formative work to contextualize the survey for LMIC deployment is needed. Objective The primary objectives of this study were to (1) cognitively test and identify challenging questions in a noncommunicable disease (NCD) risk factor questionnaire administered via an IVR platform and (2) assess the usability of the IVR platform. Methods We conducted two rounds of pilot testing the IVR survey in Baltimore, MD. Participants were included in the study if they identified as being from an LMIC. The first round included individual interviews to cognitively test the participant’s understanding of the questions. In the second round, participants unique from those in round 1 were placed in focus groups and were asked to comment on the usability of the IVR platform. Results A total of 12 participants from LMICs were cognitively tested in round 1 to assess their understanding and comprehension of questions in an IVR-administered survey. Overall, the participants found that the majority of the questions were easy to understand and did not have difficulty recording most answers. The most frequent recommendation was to use country-specific examples and units of measurement. In round 2, a separate set of 12 participants assessed the usability of the IVR platform. Overall, participants felt that the length of the survey was appropriate (average: 18 min and 31 s), but the majority reported fatigue in answering questions that had a similar question structure. Almost all participants commented that they thought an IVR survey would lead to more honest, accurate responses than face-to-face questionnaires, especially for sensitive topics. Conclusions Overall, the participants indicated a clear comprehension of the IVR-administered questionnaire and that the IVR platform was user-friendly. Formative research and cognitive testing of the questionnaire is needed for further adaptation before deploying in an LMIC.
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Gibson DG, Pereira A, Farrenkopf BA, Labrique AB, Pariyo GW, Hyder AA. Mobile Phone Surveys for Collecting Population-Level Estimates in Low- and Middle-Income Countries: A Literature Review. J Med Internet Res 2017; 19:e139. [PMID: 28476725 PMCID: PMC5438460 DOI: 10.2196/jmir.7428] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/11/2017] [Accepted: 03/11/2017] [Indexed: 11/29/2022] Open
Abstract
Background National and subnational level surveys are important for monitoring disease burden, prioritizing resource allocation, and evaluating public health policies. As mobile phone access and ownership become more common globally, mobile phone surveys (MPSs) offer an opportunity to supplement traditional public health household surveys. Objective The objective of this study was to systematically review the current landscape of MPSs to collect population-level estimates in low- and middle-income countries (LMICs). Methods Primary and gray literature from 7 online databases were systematically searched for studies that deployed MPSs to collect population-level estimates. Titles and abstracts were screened on primary inclusion and exclusion criteria by two research assistants. Articles that met primary screening requirements were read in full and screened for secondary eligibility criteria. Articles included in review were grouped into the following three categories by their survey modality: (1) interactive voice response (IVR), (2) short message service (SMS), and (3) human operator or computer-assisted telephone interviews (CATI). Data were abstracted by two research assistants. The conduct and reporting of the review conformed to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Results A total of 6625 articles were identified through the literature review. Overall, 11 articles were identified that contained 19 MPS (CATI, IVR, or SMS) surveys to collect population-level estimates across a range of topics. MPSs were used in Latin America (n=8), the Middle East (n=1), South Asia (n=2), and sub-Saharan Africa (n=8). Nine articles presented results for 10 CATI surveys (10/19, 53%). Two articles discussed the findings of 6 IVR surveys (6/19, 32%). Three SMS surveys were identified from 2 articles (3/19, 16%). Approximately 63% (12/19) of MPS were delivered to mobile phone numbers collected from previously administered household surveys. The majority of MPS (11/19, 58%) were panel surveys where a cohort of participants, who often were provided a mobile phone upon a face-to-face enrollment, were surveyed multiple times. Conclusions Very few reports of population-level MPS were identified. Of the MPS that were identified, the majority of surveys were conducted using CATI. Due to the limited number of identified IVR and SMS surveys, the relative advantages and disadvantages among the three survey modalities cannot be adequately assessed. The majority of MPS were sent to mobile phone numbers that were collected from a previously administered household survey. There is limited evidence on whether a random digit dialing (RDD) approach or a simple random sample of mobile network provided list of numbers can produce a population representative survey.
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Silva S, Pereira A, Kennya M, Gustavo M, Mano M. PV-0236: Impact of radiation therapy delay in patients underwent neoadjuvant chemotherapy and breast surgery. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30679-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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125
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González S, Vega J, Murari A, Pereira A, Beurskens M. Automatic ELM Location in JET Using a Universal Multi-Event Locator. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10924] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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