32 research outputs found

    Mapping Pilgrims’ Experience of Walking the Saint James Way Through the Lens of Self-regulation

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    The Way of St. James is a very well-known and ancient pilgrimage, with various routes leading pilgrims to the Cathedral of Santiago de Compostela in Spain, where the remains of Saint James are buried. Over the last few years, the experience of the pilgrimage and the growing number of pilgrims walking the Saint James Way have been attracting researchers’ attention. However, studies attempting to understand the pilgrims’ experience using a self-regulation lens are limited. Self-regulation may be defined as efforts made to manage individuals’ thoughts, emotions, and behaviours in the pursuit of long-term goals. Therefore, rooted in the self-regulation framework, this research aims to further understand the Saint James Way with a focus on the pilgrims’ experience, while stressing the three components of the model: planning, execution, and evaluation. The interviews of 32 Portuguese pilgrims aged between 16 and 52 were analysed using thematic analysis through Zimmerman’s model. Pilgrims made important considerations on the three phases of the self-regulation framework. Importantly, participants’ discourses stressed relevant elements of the process of doing a pilgrimage, placing a particular emphasis on the interest and value of the pilgrimage, strategic planning, strategy usage, metacognitive monitoring, self-assessment and, finally, self-satisfaction. Interestingly, some participants revealed superficial planning and a lack of self-monitoring strategies on the journey. The study provides new avenues for research and practical implications likely to enhance the quality of the pilgrimage by helping pilgrims and pilgrim organisers

    Specific IgG3/IgG1 isotyping may further inform diagnosis of acute disease

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    The laborious microscopic agglutination test (MAT) is the gold standard serologic test for laboratory diagnosis of leptospirosis. We developed EIA based serologic assays using recombinant proteins (rLigA, rLigB, rLipL32) and whole-cell extracts from eight Leptospira serovars as antigen and assessed the diagnostic performance of the new assay within each class, against MAT positive (MAT+) human sera panels from Portugal/PT (n = 143) and Angola/AO (n = 100). We found that a combination of recombinant proteins rLigA, rLigB and rLipL32 correctly identified antigen-specific IgG from patients with clinical and laboratory confirmed leptospirosis (MAT+) with 92% sensitivity and ~ 97% specificity (AUC 0.974) in serum from the provinces of Luanda (LDA) and Huambo (HBO) in Angola. A combination of whole cell extracts of L. interrogans sv Copenhageni (LiC), L. kirschneri Mozdok (LkM), L. borgpetersenii Arborea (LbA) and L. biflexa Patoc (LbP) accurately identified patients with clinical and laboratory confirmed leptospirosis (MAT+) with 100% sensitivity and ~ 98% specificity for all provinces of Angola and Portugal (AUC: 0.997 for AO/LDA/HBO, 1.000 for AO/HLA, 0.999 for PT/AZ and 1.000 for PT/LIS). Interestingly, we found that MAT+ IgG+ serum from Angola had a significantly higher presence of IgD and that IgG3/IgG1 isotypes were significantly increased in the MAT+ IgG+ serum from Portugal. Given that IgM/IgD class and IgG3/IgG1 specific isotypes are produced in the earliest course of infection, immunoglobulin G isotyping may be used to inform diagnosis of acute leptospirosis. The speed, ease of use and accuracy of EIA tests make them excellent alternatives to the laborious and expensive MAT for screening acute infection in areas where circulating serovars of pathogenic Leptospira are well defined.publishersversionepub_ahead_of_prin

    First isolation of human Leptospira strains, Azores, Portugal.

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    OBJECTIVES The aim of this study was the first identification of Leptospira isolates from Azorean inpatients. METHODS Whole blood samples from 68 inpatients attending the São Miguel Hospital between 2006 and 2008, with a clinical and epidemiological suspicion of leptospirosis, were inoculated in a transport medium broth at the patient's bedside and further processed using a serial dilution technique prior to culture. At admission, 62 (91%) patients were also analyzed for the presence of leptospiral DNA by a nested PCR and 40 (59%) for specific agglutinins by microscopic agglutination test (MAT). The isolates obtained were first assigned at the serogroup level by both MAT reactivity with hyperimmune rabbit antisera and a PCR-based assay with the single primer iRep1. The species identification was performed by DNA sequencing. The use of monoclonal antibodies allowed intraspecific discrimination at the serovar level. RESULTS Of the 10 (14.7%) human Leptospira isolates, seven were identified as Leptospira interrogans serovar Copenhageni and three as Leptospira borgpetersenii serovar Arborea, which is in agreement with previous data from the Azorean rodent population. CONCLUSIONS This study represents a great step towards the definitive identification of the pathogenic leptospires in Azorean patients and confirms the bacteriological human-rodent connection for the first time.publishersversionpublishe

    Low frequency of CD4+CD25+ Treg in SLE patients: a heritable trait associated with CTLA4 and TGFβ gene variants

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    <p>Abstract</p> <p>Background</p> <p>CD4<sup>+</sup>CD25<sup>+ </sup>regulatory T cells play an essential role in maintaining immune homeostasis and preventing autoimmunity. Therefore, defects in Treg development, maintenance or function have been associated with several human autoimmune diseases including Systemic Lupus Erythematosus (SLE), a systemic autoimmune disease characterized by loss of tolerance to nuclear components and significantly more frequent in females.</p> <p>Results</p> <p>To investigate the involvement of Treg in SLE pathogenesis, we determined the frequency of CD4<sup>+</sup>CD25<sup>+</sup>CD45RO<sup>+ </sup>T cells, which encompass the majority of Treg activity, in the PBMC of 148 SLE patients (76 patients were part of 54 families), 166 relatives and 117 controls. SLE patients and their relatives were recruited in several Portuguese hospitals and through the Portuguese Lupus Association. Control individuals were blood donors recruited from several regional blood donor centers. Treg frequency was significantly lower in SLE patients than healthy controls (z = -6.161, <it>P </it>< 0.00001) and intermediate in the relatives' group. Remarkably, this T cell subset was also lower in females, most strikingly in the control population (z = 4.121, <it>P </it>< 0.001). We further ascertained that the decreased frequency of Treg in SLE patients resulted from the specific reduction of <it>bona fide </it>FOXP3<sup>+</sup>CD4<sup>+</sup>CD25<sup>+ </sup>Treg. Treg frequency was negatively correlated with SLE activity index (SLEDAI) and titers of serum anti-dsDNA antibodies. Both Treg frequency and disease activity were modulated by IVIg treatment in a documented SLE case. The segregation of Treg frequency within the SLE families was indicative of a genetic trait. Candidate gene analysis revealed that specific variants of <it>CTLA4 </it>and <it>TGFβ </it>were associated with the decreased frequency of Treg in PBMC, while <it>FOXP3 </it>gene variants were associated with affection status, but not with Treg frequency.</p> <p>Conclusion</p> <p>SLE patients have impaired Treg production or maintenance, a trait strongly associated with SLE disease activity and autoantibody titers, and possibly resulting from the inability to convert FOXP3<sup>+</sup>CD25<sup>- </sup>into FOXP3<sup>+</sup>CD25<sup>+ </sup>T cells. Treg frequency is highly heritable within SLE families, with specific variants of the <it>CTLA4 </it>and <it>TGFβ </it>genes contributing to this trait, while <it>FOXP3 </it>contributes to SLE through mechanisms not involving a modulation of Treg frequency. These findings establish that the genetic components in SLE pathogenesis include genes related to Treg generation or maintenance.</p

    Influenza virus type/subtype and different infection profiles by age group during 2017/2018 season

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    DDI-INSA em colaboração com a Rede Portuguesa de Laboratórios para o Diagnóstico da GripeBackground: Influenza has a major impact in hospitalization during each influenza season. We analysed the influenza type/subtype distribution by age group and medical care wards (ambulatory, hospital, intensive care unit). Material and Methods: During 2017/2018 season, 14 hospitals from Portugal mainland and Atlantic Island (Azores and Madeira) reported to the National Influenza Centre 13747 cases of respiratory infection, all tested for influenza type and/or subtype. Epidemiological data: age, sample collection, hospital dwelling service and patient outcome were reported. Results: From the 13747 reported cases, 3717(27%) were influenza positive of which 2033 (55%) were influenza B, 722 (19%) A unsubtyped, 505 (14%) AH3, 442 (12%) AH1pdm09 and 15(0,1%) mixed infections. Influenza A was detected in 71% (204/208) of toddlers(<5 years) although in the remaining age groups influenza B was detected in more than 50% of the confirmed flu cases. Influenza B was the predominant virus in hospitalized and ICU influenza cases between 5-14 years (69% and 75%, respectively) and played a major role in elderly (65+ years) hospitalized and ICU cases(57% and 67%, respectively). AH1pdm09 virus was detected in 30% of the influenza confirmed ICU patients, 2.1 times more than in hospitalized cases in other wards and 3.3 times more than influenza AH1pdm09 cases in ambulatory care. Influenza mixed infection were detected sporadically,mainly in hospitalized and ICU patients. From 2080 known outcomes, 40(1.9%) patients deceased, influenza was confirmed in 11(28%) of these cases. Conclusions: Cocirculation of different influenza virus type/subtype may indicate different infection profiles by age groups and should guide influenza preventive/treatment measures.N/

    Osteonecrose dos maxilares associada ao uso de medicamentos

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    A osteonecrose pode ser definida como lesão de osso exposto ou fístula em pacientes sem histórico de doença metastática ou de radioterapia, que estão sob tratamento com agentes antirreabsortivos e/ou antiangiogênicos, tendo suas lesões persistindo por mais de oito semanas. Este estudo tem por objetivo descrever a osteonecrose associada ao uso de medicamentos, relatando sua etiologia e suas formas de tratamento. Esta pesquisa é uma revisão narrativa de Literatura, feita por meio de levantamento bibliográfico nas bases de dados Biblioteca Virtual em Saúde (BVS), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Biblioteca Eletrônica Científica Online (SciELO) e no PubMed. A osteonecrose relacionada ao uso de medicamentos é uma patologia desafiadora, tendo áreas de tecido ósseo não vital que favorecem a colonização de bactérias e aumento da necrose óssea. Na literatura não há um protocolo especifico de tratamento, contudo, o uso de terapia fotodinâmica antimicrobiana vem se mostrado uma alternativa promissora no combate a essa patologia

    Influenza seroprotection correlates with predominant circulating viruses during 2014/15 and 2015/16 seasons in Portugal

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    Rede Portuguesa de Laboratórios para o Diagnóstico da GripeBACKGROUND: Population immune profile for influenza is highly affected by circulating influenza viruses, thus changing the risk of infection for influenza. This study aims to assess influenza immunity in the Portuguese population by age groups, during 2014 and 2015 and establish a relationship between seroprotection and circulating influenza viruses in 2014/15 and 2015/16 seasons. METHODS: Two cross-sectional studies were developed based on a convenience serum sample collected in June 2014 (n=626) and July 2015 (n=675) in hospitals from mainland and Azores and Madeira.Serums equally represent all age groups. Antibody titers were evaluated by HI assay for strains recommended for seasonal influenza vaccine northern hemisphere,2014/15 and 2015/2016. Seroprevalences were estimated for each strain by age group and the association with seasonal cumulative influenza-like illness (ILI) rates for influenza virus during both seasons was analised. RESULTS: In June 2014 the highest seroprotection was observed for influenza A(H3) (39.0%; 95% CI: 36.2-43.8%) and A(H1)pdm09 (29.7; 95% CI: 26.3-33.4%), with higher levels in children 5-14 years old. In 2014/2015 a dominant circulation of influenza B/Yamagata was observed with high incidence rates in individuals under 65 years old, the ones that had lower seroprotection. Although before the start of the season high protection for A(H3) was observed, the circulation of the new drift A(H3) strains had gained an immunological advantage,in accordance with A(H3) elevated incidence rates observed during 2014/15. In July 2015 the highest seroprotection was observed for influenza B/ Yamagata (55.1%; 95% CI: 51.4-58.9%), 2.4 times the estimated 2014.This increase was even more pronounced in younger (≤ 4 years old), 6.3 times increase in 2015.This fact is in agreement with the predominant influenza B virus detected and the high ILI incidence rate observed in children during 2014/2015 epidemic. Seroprotection levels for influenza A in July 2015 were not significantly different from 2014.During 2015/16 season, influenza A(H1N1)pdm09 was predominant, with high incidence rate in < 65 year old. Influenza B/Victoria lineage,although detected at low levels increased in frequency, in agreement with the lowest level of seroprotection detected in the general population before the start of 2015/2016 season (21.8%; 95% CI: 18.7-24.0%). CONCLUSIONS There was a correlation between virus circulation, incidence rates for each age group and the previous seroprotection for seasonal influenza viruses.Our study highlights the value of measuring the serological profile for influenza to establishe risk groups for infection for which an increase preventive measures, including vaccination, should be fostered.info:eu-repo/semantics/publishedVersio

    Influenza severe cases in hospitals, between 2014 and 2016 in Portugal

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    Rede Portuguesa de Laboratórios para o Diagnóstico da GripeBackground: Since 2009, the Portuguese Laboratory Network (PLNID) for Influenza Diagnosis has integrated 15 Laboratories in mainland and Atlantic Islands of Azores and Madeira. This PLNID added an important contribute to the National Influenza Surveillance Program regarding severe and hospitalized influenza cases. The present study aims to describe influenza viruses detected in influenza like illness (ILI) cases: outpatients (Outp), hospitalized (Hosp), and intensive care units (ICU), between 2014 and 2016. Methods: The PLNID performs influenza virus diagnosis by biomolecular methodologies. Weekly reports to the National Influenza Reference Laboratory ILI cases tested for influenza. Reports include data on detecting viruses, hospital assistance, antiviral therapeutics, and information on death outcome. Were reported during two winter seasons 8059 ILI cases,being 3560 cases in 2014/15 (1024 in Outp, 1750 Hosp, and 606 in ICU) and 4499 cases in 2015/2016 (1933 in Outp, 1826 Hosp, and 740 in ICU). Results: The higher percentage of influenza positive cases were detected in Outp in both seasons, 18% during 2014/15 and 20% in 2015/16. In 2014/15,influenza cases were more frequent in individuals older than 65 years old and these required more hospitalizations,even in ICU. In 2015/16,the influenza cases were mainly detected in individuals between 15-64 years old. A higher proportion of influenza positive cases with hospitalization in ICU were observed in adults between 45-64 years old.During the study period,the predominant circulating influenza viruses were different in the two seasons: influenza B and A(H3) co-circulated in 2014/15,and influenza A(H1)pdm09 was predominant during 2015/16. Even when influenza A is notthe dominant virus, A(H3) and A(H1)pdm09 subtypes correlate with higher detection rate in hospitalized cases (Hosp and UCI), with higher frequencies in adults older than 45. Influenza B,detected in higher proportion in outpatients, was frequently relatedwith influenza cases in younger age groups: 0-4 and 5-14 years old. Conclusions: This study highlights the correlation of theinfluenza virus type/subtype that circulates in each season with the possible need for hospitalization and intensive care in special groups of the population. Circulation of influenza A subtypes can cause more frequentdisease in individuals older than 45, with need of hospitalization including intensive care. On the other hand, influenza B is more frequently associated with less severe cases and with infection in children and younger adults. Influenza B circulation might predict lower number of hospitalizations.The identification of influenza type in circulation,byPLNID ineach season, could guide action planning measures in population health care.info:eu-repo/semantics/publishedVersio

    Rede Portuguesa de Laboratórios para o Diagnóstico da Gripe: inverno 2013/2014

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    A Rede Portuguesa de Laboratórios para o Diagnóstico da Gripe (RPLDG) integra, atualmente, 15 laboratórios maioritariamente hospitalares e é coordenada pelo Laboratório Nacional de Referência para o Vírus da Gripe (LNRVG) do Departamento de Doenças Infecciosas do Instituto Nacional de Saúde Doutor Ricardo Jorge, I.P. A RPLDG realiza o diagnóstico laboratorial do vírus da gripe assim como de outros vírus respiratórios, permitindo um conhecimento mais preciso da etiologia das infeções respiratórias, particularmente em casos hospitalizados de infeção respiratória aguda grave, constituindo um complemento valioso para o PNVG. Os casos de SG provenientes de emergências hospitalares e casos de Infecção Respiratória Aguda Grave, incluindo casos com internamento em unidade de cuidados intensivos, foram notificados pelos laboratórios da Rede ao LNRVG. Dos 15 laboratórios da Rede, 13 notificaram casos de doença respiratória durante a época de 2013/2014. Os dados recolhidos foram inseridos em suporte informático tendo as bases de dados sido agregadas numa base de dados comum submetida a um processo de validação de congruência de dados. Os dados analisados correspondem ao período que decorreu entre a semana 38 de 2013 e a semana 21 de 2014. Foram notificados pelos Laboratórios da Rede um total de 3790 casos de infeção respiratória. O maior número de notificações foi observado no mês de janeiro e fevereiro (semanas 2/2014 a 8/2014), com um pico de ocorrência na semana 4/2014 com a notificação de 454 casos de infeção respiratória. O vírus da gripe foi detetado em 822 casos de infeção respiratória. O vírus influenza A foi identificado em 807 (98,2%) dos casos positivos, destes 403 (49,0%) pertencem ao subtipo A(H1)pdm09, 98 (12,0%) ao subtipo A(H3) e 306 (37,0%) vírus influenza A não foram subtipados. O vírus influenza B foi detetado em 14 (2,0%) casos. Foi identificada 1 infecção mista por vírus influenza A(H1)pdm09 e A(H3) (0,1%). A maior percentagem de casos de gripe foi observada em indivíduos entre os 15 e os 64 anos sendo o vírus influenza A(H1)pdm09 o predominantemente detetado. Nas crianças com menos de 4 anos o vírus influenza foi detetado numa proporção reduzida, apenas em 8,8% dos casos analisados laboratorialmente, sendo o agente mais detetado neste grupo etário, o vírus sincicial respiratório (dados não mostrados). A Rede Portuguesa de Laboratórios para o Diagnóstico da Gripe permitiu a deteção dos vírus da gripe em meio hospitalar, incluindo doentes em internamento e UCI. Os vírus influenza A foram predominantes e detetados em maior percentagem nos jovens e adultos
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