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1.
Front Psychol ; 15: 1345117, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39100568

RESUMO

Background: People with multimorbidity are increasingly engaged, enabled, and empowered to take responsibility for managing their health status. The purpose of the study was to systematically review and appraise the psychometric properties of tools measuring patient engagement in adults with multimorbidity and their applicability for use within engagement programs. Methods: PubMed, Scopus, Web of Science, and PsycInfo were searched from inception to 1 July 2021. Gray literature was searched using EBSCO host-database "Open dissertation". The reference lists of studies meeting the inclusion criteria were searched to identify additional eligible studies. The screening of the search results and the data extraction were performed independently by two reviewers. The methodological quality of the included studies was evaluated with the COSMIN checklist. Relevant data from all included articles were extracted and summarized in evidence synthesis tables. Results: Twenty articles on eight tools were included. We included tools that measure all four dimensions of patient engagement (i.e., engagement, empowerment, activation, and participation). Their psychometric properties were analyzed separately. Most tools were developed in the last 10 years in Europe or the USA. The comparison of the estimated psychometric properties of the retrieved tools highlighted a significant lack of reliable patient engagement measures for people with multimorbidity. Available measures capture a diversity of constructs and have very limited evidence of psychometric properties that are vital for patient-reported measures, such as invariance, reliability, and responsiveness. Conclusion: This review clarifies how patient engagement, as operationalized in measures purporting to capture this concept, overlaps with, and differs from other related constructs in adults with multimorbidity. The methodological quality of psychometric tools measuring patient engagement in adults with multimorbidity could be improved. Systematic review registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=259968, identifier CRD42021259968.

2.
Bone Joint J ; 106-B(7): 735-743, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38945546

RESUMO

Aims: There is a lack of high-quality research investigating outcomes of Ponseti-treated idiopathic clubfeet and correlation with relapse. This study assessed clinical and quality of life (QoL) outcomes using a standardized core outcome set (COS), comparing children with and without relapse. Methods: A total of 11 international centres participated in this institutional review board-approved observational study. Data including demographics, information regarding presentation, treatment, and details of subsequent relapse and management were collected between 1 June 2022 and 30 June 2023 from consecutive clinic patients who had a minimum five-year follow-up. The clubfoot COS incorporating 31 parameters was used. A regression model assessed relationships between baseline variables and outcomes (clinical/QoL). Results: Overall, 293 patients (432 feet) with a median age of 89 months (interquartile range 72 to 113) were included. The relapse rate was 37%, with repeated relapse in 14%. Treatment considered a standard part of the Ponseti journey (recasting, repeat tenotomy, and tibialis anterior tendon transfer) was performed in 35% of cases, with soft-tissue release and osteotomies in 5% and 2% of cases, respectively. Predictors of relapse included duration of follow-up, higher initial Pirani score, and poor Evertor muscle activity. Relapse was associated with poorer outcomes. Conclusion: This is the first multicentre study using a standardized COS following clubfoot treatment. It distinguishes patients with and without relapse in terms of clinical outcomes and QoL, with poorer outcomes in the relapse group. This tool allows comparison of treatment methods and outcomes, facilitates information sharing, and sets family expectations. Predictors of relapse encourage us to create appropriate treatment pathways to reduce relapse and improve outcome.


Assuntos
Pé Torto Equinovaro , Qualidade de Vida , Recidiva , Humanos , Pé Torto Equinovaro/terapia , Masculino , Feminino , Criança , Pré-Escolar , Resultado do Tratamento , Moldes Cirúrgicos , Lactente , Tenotomia/métodos , Seguimentos
3.
Bone Joint J ; 106-B(3): 277-285, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38423096

RESUMO

Aims: Children with spinal dysraphism can develop various musculoskeletal deformities, necessitating a range of orthopaedic interventions, causing significant morbidity, and making considerable demands on resources. This systematic review aimed to identify what outcome measures have been reported in the literature for children with spinal dysraphism who undergo orthopaedic interventions involving the lower limbs. Methods: A PROSPERO-registered systematic literature review was performed following PRISMA guidelines. All relevant studies published until January 2023 were identified. Individual outcomes and outcome measurement tools were extracted verbatim. The measurement tools were assessed for reliability and validity, and all outcomes were grouped according to the Outcome Measures Recommended for use in Randomized Clinical Trials (OMERACT) filters. Results: From 91 eligible studies, 27 individual outcomes were identified, including those related to clinical assessment (n = 12), mobility (n = 4), adverse events (n = 6), investigations (n = 4), and miscellaneous (n = 1). Ten outcome measurement tools were identified, of which Hoffer's Functional Ambulation Scale was the most commonly used. Several studies used unvalidated measurement tools originally developed for other conditions, and 26 studies developed new measurement tools. On the OMERACT filter, most outcomes reported pathophysiology and/or the impact on life. There were only six patient- or parent-reported outcomes, and none assessed the quality of life. Conclusion: The outcomes that were reported were heterogenous, lack validation and failed to incorporate patient or family perceptions. Until outcomes can be reported unequivocally, research in this area will remain limited. Our findings should guide the development of a core outcome set, which will allow consistency in the reporting of outcomes for this condition.


Assuntos
Ortopedia , Disrafismo Espinal , Criança , Humanos , Qualidade de Vida , Reprodutibilidade dos Testes , Avaliação de Resultados em Cuidados de Saúde , Disrafismo Espinal/complicações , Disrafismo Espinal/cirurgia
4.
Int J Immunopathol Pharmacol ; 37: 3946320231154997, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36716496

RESUMO

Encephalitis lethargica developed in epidemic from 1919 to 1926 in Europe and throughout the world. From the clinical point of view, the disturbances of consciousness and alertness and the possible outcomes of a postencephalitic Parkinsonism has attracted much attention. For a long time, it was thought that such a disease may still occur sporadically. In this review, the authors examined historical and current pictures of epidemics that may be related to Encephalitis lethargica. The previous Nona and Russian Influenza exhibited frequent neurological symptoms. The Spanish flu, formerly related to Encephalitis lethargica, would appear an epidemic that had its development in a partially overlapping period. The current pandemic linked to COVID-19 sometimes has aspects that can resemble Encephalitis lethargica. Based on historical analysis and the more recent immunological data, it could be suggested that Encephalitis lethargica was an autoimmune encephalitis that arose in a secondary form to the action of a viral agent. It cannot be ruled out that this agent was a coronavirus. From the nosological point of view, the term Encephalitis lethargica should be abolished in designating autoimmune encephalitis pictures that run sporadically.


Assuntos
Doenças Autoimunes do Sistema Nervoso , COVID-19 , Influenza Pandêmica, 1918-1919 , Influenza Humana , Doença de Parkinson Pós-Encefalítica , História do Século XX , Humanos , Doença de Parkinson Pós-Encefalítica/complicações , Doença de Parkinson Pós-Encefalítica/epidemiologia , COVID-19/complicações , Doenças Autoimunes do Sistema Nervoso/complicações
5.
Bone Jt Open ; 3(1): 54-60, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35043675

RESUMO

AIMS: The aim of this study is to define a core outcome set (COS) to allow consistency in outcome reporting amongst studies investigating the management of orthopaedic treatment in children with spinal dysraphism (SD). METHODS: Relevant outcomes will be identified in a four-stage process from both the literature and key stakeholders (patients, their families, and clinical professionals). Previous outcomes used in clinical studies will be identified through a systematic review of the literature, and each outcome will be assigned to one of the five core areas, defined by the Outcome Measures in Rheumatoid Arthritis Clinical Trials (OMERACT). Additional possible outcomes will be identified through consultation with patients affected by SD and their families. RESULTS: Outcomes identified in these stages will be included in a two-round Delphi process that will involve key stakeholders in the management of SD. A final list including the identified outcomes will then be summarized in a consensus meeting attended by representatives of the key stakeholders groups. CONCLUSION: The best approach to provision of orthopaedic care in patients with SD is yet to be decided. The reporting of different outcomes to define success among studies, often based on personal preferences and local culture, has made it difficult to compare the effect of treatments for this condition. The development of a COS for orthopaedic management in SD will enable meaningful reporting and facilitate comparisons in future clinical trials, thereby assisting complex decision-making in the clinical management of these children. Cite this article: Bone Jt Open 2022;3(1):54-60.

6.
Bone Jt Open ; 3(1): 98-106, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35084212

RESUMO

AIMS: To identify the minimum set of outcomes that should be collected in clinical practice and reported in research related to the care of children with idiopathic congenital talipes equinovarus (CTEV). METHODS: A list of outcome measurement tools (OMTs) was obtained from the literature through a systematic review. Further outcomes were collected from patients and families through a questionnaire and interview process. The combined list, as well as the appropriate follow-up timepoint, was rated for importance in a two-round Delphi process that included an international group of orthopaedic surgeons, physiotherapists, nurse practitioners, patients, and families. Outcomes that reached no consensus during the Delphi process were further discussed and scored for inclusion/exclusion in a final consensus meeting involving international stakeholder representatives of practitioners, families, and patient charities. RESULTS: In total, 39 OMTs were included from the systematic review. Two additional OMTs were identified from the interviews and questionnaires, and four were added after round one Delphi. Overall, 22 OMTs reached 'consensus in' during the Delphi and two reached 'consensus out'; 21 OMTs reached 'no consensus' and were included in the final consensus meeting. In all, 21 participants attended the consensus meeting, including a wide diversity of clubfoot practitioners, parent/patient representative, and an independent chair. A total of 21 outcomes were discussed and voted upon; six were voted 'in' and 15 were voted 'out'. The final COS document includes nine OMTs and two existing outcome scores with a total of 31 outcome parameters to be collected after a minimum follow-up of five years. It incorporates static and dynamic clinical findings, patient-reported outcome measures, and a definition of CTEV relapse. CONCLUSION: We have defined a minimum set of outcomes to draw comparisons between centres and studies in the treatment of CTEV. With the use of these outcomes, we hope to allow more meaningful research and a better clinical management of CTEV. Cite this article: Bone Jt Open 2022;3(1):98-106.

7.
Cell Stress Chaperones ; 26(3): 515-525, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33629254

RESUMO

Hyperinflammation distinguishes COVID-19 patients who develop a slight disease or none, from those progressing to severe and critical conditions. CIGB-258 is a therapeutic option for the latter group of patients. This drug is an altered peptide ligand (APL) derived from the cellular stress protein 60 (HSP60). In preclinical models, this peptide developed anti-inflammatory effects and increased regulatory T cell (Treg) activity. Results from a phase I clinical trial with rheumatoid arthritis (RA) patients indicated that CIGB-258 was safe and reduced inflammation. The aim of this study was to examine specific biomarkers associated with hyperinflammation, some cytokines linked to the cytokine storm granzyme B and perforin in a cohort of COVID-19 patients treated with this peptide. All critically ill patients were under invasive mechanical ventilation and received the intravenous administration of 1 or 2 mg of CIGB-258 every 12 h. Seriously ill patients were treated with oxygen therapy receiving 1 mg of CIGB-258 every 12 h and all patients recovered from their severe condition. Biomarker levels associated with hyperinflammation, such as interleukin (IL)-6, IL-10, tumor necrosis factor (TNF-α), granzyme B, and perforin, significantly decreased during treatment. Furthermore, we studied the ability of CIGB-258 to induce Tregs in COVID-19 patients and found that Tregs were induced in all patients studied. Altogether, these results support the therapeutic potential of CIGB-258 for diseases associated with hyperinflammation. Clinical trial registry: RPCEC00000313.


Assuntos
Anti-Inflamatórios/uso terapêutico , Tratamento Farmacológico da COVID-19 , Chaperonina 60/uso terapêutico , Síndrome da Liberação de Citocina/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Anti-Inflamatórios/química , COVID-19/sangue , COVID-19/complicações , Chaperonina 60/química , Síndrome da Liberação de Citocina/sangue , Síndrome da Liberação de Citocina/complicações , Feminino , Humanos , Inflamação/sangue , Inflamação/complicações , Inflamação/tratamento farmacológico , Interleucina-10/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , SARS-CoV-2/efeitos dos fármacos , Linfócitos T Reguladores/efeitos dos fármacos , Fator de Necrose Tumoral alfa/sangue , Adulto Jovem
8.
Am J Med Genet A ; 182(10): 2359-2368, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32808748

RESUMO

Rare loss of function variants in DSP, which codes for the desmosomal protein desmoplakin, have been implicated in dilated and arrhythmogenic right ventricular cardiomyopathies. We present a family with arrhythmogenic cardiomyopathy associated with a novel missense variant in DSP (NM_004415.4): c.877G>A, p.(Glu293Lys). The phenotype is characterized by predominant involvement of the left ventricle with systolic dysfunction, fibrosis, and life-threatening arrhythmias. We performed a systematic review of literature collecting all cardiomyopathy cases with rare missense variants in DSP. We demonstrate that the distribution of missense variants across the protein domains in cardiomyopathy cases differs from that in gnomAD (p = .04), with a case enrichment of rare missense variants in the spectrin repeat domain (36/78 [46%] in cases vs. 449/1495 [30%] in gnomAD; p = .004). Our findings highlight the predominance of cardiac arrhythmia and left ventricular involvement in desmoplakin cardiomyopathy and pinpoint to a potential mutation hotspot in DSP thereby facilitating missense variant interpretation in the diagnostic setting.


Assuntos
Arritmias Cardíacas/genética , Displasia Arritmogênica Ventricular Direita/genética , Desmoplaquinas/genética , Predisposição Genética para Doença , Arritmias Cardíacas/patologia , Displasia Arritmogênica Ventricular Direita/patologia , Feminino , Variação Genética , Ventrículos do Coração/patologia , Humanos , Masculino , Mutação de Sentido Incorreto/genética , Fenótipo
9.
Bone Joint J ; 102-B(5): 611-617, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32349599

RESUMO

AIMS: To identify a suite of the key physical, emotional, and social outcomes to be employed in clinical practice and research concerning Perthes' disease in children. METHODS: The study follows the guidelines of the COMET-Initiative (Core Outcome Measures in Effectiveness Trials). A systematic review of the literature was performed to identify a list of outcomes reported in previous studies, which was supplemented by a qualitative study exploring the experiences of families affected by Perthes' disease. Collectively, these outcomes formed the basis of a Delphi survey (two rounds), where 18 patients with Perthes' disease, 46 parents, and 36 orthopaedic surgeons rated each outcome for importance. The International Perthes Study Group (IPSG) (Dallas, Texas, USA (October 2018)) discussed outcomes that failed to reach any consensus (either 'in' or 'out') before a final consensus meeting with representatives of surgeons, patients, and parents. RESULTS: In total, 23 different outcome domains were identified from the systematic review, and a further ten from qualitative interviews. After round one of the Delphi survey, participants suggested five further outcome domains. A total of 38 outcomes were scored in round two of the Delphi. Among these, 16 outcomes were scored over the prespecified 70% threshold for importance (divided into six main categories: adverse events; life impact; resource use; pathophysiological manifestations; death; and technical considerations). Following the final consensus meeting, 14 outcomes were included in the final Core Outcome Set (COS). CONCLUSION: Core Outcome Sets (COSs) are important to improve standardization of outcomes in clinical research and to aid communication between patients, clinicians, and funding bodies. The results of this study should be a catalyst to develop high-quality clinical research in order to determine the optimal treatments for children with Perthes' disease. Cite this article: Bone Joint J 2020;102-B(5):611-617.


Assuntos
Doença de Legg-Calve-Perthes/psicologia , Doença de Legg-Calve-Perthes/cirurgia , Medidas de Resultados Relatados pelo Paciente , Perfil de Impacto da Doença , Adolescente , Criança , Pré-Escolar , Técnica Delphi , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pais/psicologia , Pesquisa Qualitativa , Revisões Sistemáticas como Assunto
11.
Transl Med UniSa ; 21: 7-9, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32123673

RESUMO

Foot ulcers associated with Diabetes mellitus require immediate attention due to risk of amputation if left untreated. Herein we focus on the mitigating risk factors and physiopathology of the diabetic foot, recounting our own surgical approach and revascularization procedures.

12.
Transl Med UniSa ; 21: 38-46, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32123681

RESUMO

Nowadays patients affected by deep vein thrombosis (DVT) and pulmonary embolism (PE) are studied widely but the challenge for physicians is when and how they are to be treated. Most patients present serious comorbidities that can potentially make treatment difficult. An increasing cohort of patients cannot be treated with systemic fibrinolysis but fortunately today, physicians can utilize a number of different instruments to resolve acute DVT and PE.

13.
Tech Coloproctol ; 24(6): 553-562, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32112244

RESUMO

BACKGROUND: Celiac disease (CD) is a systemic inflammatory disease, which primarily affects the gastrointestinal tract. It has been recently demonstrated that adipose-tissue infiltration by proinflammatory immune cells causes a chronic low-grade inflammation in obese patients. Magnetic resonance imaging (MRI) has already proved to be useful in evaluation of inflammatory states. The aim of the present study was to determine whether alterations of visceral and subcutaneous adipose tissue, identified with MRI, could serve as markers of local and systemic inflammation in patients with CD. METHODS: A pilot study was conducted comparing alterations in visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) in CD patients vs obese patients and healthy controls. Fifty patients were enrolled and assigned to one of the following groups: Group A: 11 active CD patients; Group B: 11 CD patients in remission; Group C: 16 obese patients; Group D: 12 healthy controls. A 3-T MRI unit was used and T2-weighted TSE images of VAT and SAT were obtained in specific regions of interest. Serum cytokine concentrations (TNF-α, IL-6, adiponectin, leptin, IL-2, IFN-γ) were determined. RESULTS: There was a significant difference in VAT T2 relaxation time between Group A and B (p < 0.001), A and D (p < 0.01), B and C (p < 0.001). There was a statistically significant difference in SAT T2 relaxation time between Group A and B (p < 0.001), A and C (p < 0.05), A and D (p < 0.001), B and C (p < 0.01). In addition, VAT/SAT T2 relaxation time ratio showed a statistically significant difference between Group A and C (p < 0.05) and between Group B and C (p < 0.01). Only TNF-α and IL-6 significantly correlated with both VAT and VAT/SAT ratio in active CD. CONCLUSIONS: MRI showed similar increased visceral inflammatory signals in patients with active CD and obese patients. However, subcutaneous inflammatory signals were higher in active CD than in all the other groups. These data show that there is a systemic inflammatory state in active CD, whereas chronic inflammation appears confined to VAT in obesity. These data were only partially confirmed by serological cytokine profiles, which showed less specificity than MRI.


Assuntos
Obesidade , Gordura Subcutânea , Tecido Adiposo , Humanos , Inflamação/diagnóstico por imagem , Inflamação/etiologia , Imageamento por Ressonância Magnética , Obesidade/complicações , Obesidade/diagnóstico por imagem , Projetos Piloto , Gordura Subcutânea/diagnóstico por imagem
14.
NPJ Precis Oncol ; 2: 26, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30480095

RESUMO

Secretome of primary cultures is an accessible source of biological markers compared to more complex and less decipherable mixtures such as serum or plasma. The protonation state (PS) of secretome reflects the metabolism of cells and can be used for cancer early detection. Here, we demonstrate a superhydrophobic organic electrochemical device that measures PS in a drop of secretome derived from liquid biopsies. Using data from the sensor and principal component analysis (PCA), we developed algorithms able to efficiently discriminate tumour patients from non-tumour patients. We then validated the results using mass spectrometry and biochemical analysis of samples. For the 36 patients across three independent cohorts, the method identified tumour patients with high sensitivity and identification as high as 100% (no false positives) with declared subjects at-risk, for sporadic cancer onset, by intermediate values of PS. This assay could impact on cancer risk management, individual's diagnosis and/or help clarify risk in healthy populations.

15.
Clin Exp Dermatol ; 42(3): 243-250, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28052512

RESUMO

The skin immune system is composed of a vast network of immune cells, including lymphocytes, macrophages, neutrophils, dendritic cells and Langerhans cells, which not only are involved in inflammatory responses but also contribute to homeostatic function and may participate in the various steps of carcinogenesis. Many studies support the notion that innate immunity has a key role in the development, growth and prognosis of cutaneous malignant melanoma (MM), through the release of pro- and/or anti-inflammatory cytokines and tumour growth factors. The tumour environment in a major subset of cutaneous MM shows evidence of a T cell-infiltrated phenotype, but there is less known about the presence and the phenotype of other immune system cells. Response to immunotherapy is largely correlated with the presence of T cells in the tumour microenvironment, while the regulation exerted by stromal components such as macrophages and mast cells has been less investigated. In the current report, we review the recent literature, focusing our attention on the role of macrophages, dendritic cells, mast cells and natural killer cells in orchestrating MM progression, to better understand tumour immunobiology. The identification of new therapeutic targets and the application of approaches aimed at modulating crosstalk between immune and tumour cells, could have a crucial impact on immunotherapy and result in better clinical outcome. We hope this review will be helpful in cutaneous MM research.


Assuntos
Imunidade Inata , Melanoma/imunologia , Neoplasias Cutâneas/imunologia , Células Dendríticas/imunologia , Humanos , Células Matadoras Naturais/imunologia , Macrófagos/imunologia , Mastócitos/imunologia , Linfócitos T/imunologia , Microambiente Tumoral/imunologia , Melanoma Maligno Cutâneo
16.
BMC Neurol ; 16: 127, 2016 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-27502239

RESUMO

BACKGROUND: Circulating Tumor Cells (CTCs) are promising biomarkers for monitoring solid cancer and were used to monitor brain tumors. Here we report two cases in which, for the first time, CTCs were used in cytological diagnostic evaluation to discriminate a space-occupying lesion of the brain. CASE PRESENTATION: Two cases of focal intracranial lesions, unclassified for diagnosis, untreated and apparently symptomatic, were examined after high-contrast resolution Magnetic Resonance Imaging and/or Computed Tomography scans. CTCs were seeded on chamber slides and short-time expanded under the optimized conditions as we previously reported. The first case was a focal lesion localized in the parietal-occipital area in a 67-year-old woman. The second case was a 31-year-old man with an expansive intracerebral lesion localized in the left peri-trigonal area. Both patients underwent excisional biopsy. Histopathological evaluation of the biopsy confirmed the previous cytological diagnoses, and the analysis of the clinical outcomes retrospectively validated both diagnoses. CONCLUSIONS: The cases here reported illustrate the potential for using expanded CTCs as non-invasive, real-time biopsy. Moreover, non-invasive real-time biopsy can represent an alternative diagnostic tool to be used when a functional area of the brain is at risk of injury from excisional biopsy procedures.


Assuntos
Neoplasias Encefálicas/patologia , Citodiagnóstico/métodos , Células Neoplásicas Circulantes/patologia , Adulto , Idoso , Astrocitoma/diagnóstico por imagem , Astrocitoma/patologia , Biópsia/métodos , Neoplasias Encefálicas/diagnóstico por imagem , Células Cultivadas , Meios de Contraste , Feminino , Glioblastoma/diagnóstico por imagem , Glioblastoma/patologia , Humanos , Linfoma Difuso de Grandes Células B/diagnóstico por imagem , Linfoma Difuso de Grandes Células B/patologia , Imageamento por Ressonância Magnética/métodos , Masculino , Segunda Neoplasia Primária/diagnóstico por imagem , Segunda Neoplasia Primária/patologia , Tomografia por Emissão de Pósitrons/métodos , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos
17.
Clin Vaccine Immunol ; 23(4): 370-8, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26888185

RESUMO

Hepatitis C virus (HCV) infection is a major worldwide problem. Chronic hepatitis C is recognized as one of the major causes of cirrhosis, hepatocellular carcinoma, and liver failure. Although new, directly acting antiviral therapies are suggested to overcome the low efficacy and adverse effects observed for the current standard of treatment, an effective vaccine would be the only way to certainly eradicate HCV infection. Recently, polyhydroxybutyrate beads produced by engineered Escherichia coli showed efficacy as a vaccine delivery system. Here, an endotoxin-free E. coli strain (ClearColi) was engineered to produce polyhydroxybutyrate beads displaying the core antigen on their surface (Beads-Core) and their immunogenicity was evaluated in BALB/c mice. Immunization with Beads-Core induced gamma interferon (IFN-γ) secretion and a functional T cell immune response against the HCV Core protein. With the aim to target broad T and B cell determinants described for HCV, Beads-Core mixed with HCV E1, E2, and NS3 recombinant proteins was also evaluated in BALB/c mice. Remarkably, only three immunization with Beads-Core+CoE1E2NS3/Alum (a mixture of 0.1 µg Co.120, 16.7 µg E1.340, 16.7 µg E2.680, and 10 µg NS3 adjuvanted in aluminum hydroxide [Alum]) induced a potent antibody response against E1 and E2 and a broad IFN-γ secretion and T cell response against Core and all coadministered antigens. This immunological response mediated protective immunity to viremia as assessed in a viral surrogate challenge model. Overall, it was shown that engineered biopolyester beads displaying foreign antigens are immunogenic and might present a particulate delivery system suitable for vaccination against HCV.


Assuntos
Sistemas de Liberação de Medicamentos , Hepacivirus/imunologia , Anticorpos Anti-Hepatite C/sangue , Hidroxibutiratos/administração & dosagem , Poliésteres/administração & dosagem , Linfócitos T/imunologia , Vacinas Virais/administração & dosagem , Vacinas Virais/imunologia , Animais , Modelos Animais de Doenças , Escherichia coli/genética , Escherichia coli/metabolismo , Hepatite C/prevenção & controle , Interferon gama/metabolismo , Engenharia Metabólica , Camundongos Endogâmicos BALB C , Resultado do Tratamento , Viremia/prevenção & controle
18.
Acta Gastroenterol Belg ; 79(2): 447-453, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28209104

RESUMO

BACKGROUND AND AIM: Celiac disease (CD) is a common gluten-related disorder, whose only treatment is a gluten-free diet (GFD). Since a unique view on psychological consequences of a GFD still lacks, our aim was to assess the quality of life (QoL) and the depression state in symptomatic CD patients after GFD. Socio-demographic features were considered. PATIENTS AND METHODS: 210 adult CD patients were recruited and divided into 3 groups : 70 newly diagnosed patients (​Group A​),70 patients who have been on GFD for 6-12 months (​Group B​), and 70 patients who have been on GFD for more than 12 months (​Group C​). We recruited 210 healthy controls (​Group D). Psychological General Well-Being Index (PGWBI) and Beck Depression Inventory (BDI) questionnaires were administered. Each group was evaluated according to age, gender and school ranking. RESULTS: Groups A ​and B showed lower PGWBI scores compared with both Group C ​and D (p <0.001 for each comparison). Moreover, Groups A and B showed higher BDI scores compared with both ​Group C ​and D (p <0.001 for each comparison).Women, the elderly and the poorly educated seemed to suffer more psychological stress. CONCLUSION: GFD induces an improvement of well-being and a decrease of depression state after 12 months of strict GFD. Negative psychological implications were observed only in specific risk categories. (Acta gastroenterol. belg., 2016, 79, 447-453).


Assuntos
Doença Celíaca/dietoterapia , Dieta Livre de Glúten , Qualidade de Vida , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Psicológico , Inquéritos e Questionários
19.
Artigo em Inglês | MEDLINE | ID: mdl-26417937

RESUMO

Endovascular repair of abdominal aortic aneurysm has become a milestone in the treatment of patients with abdominal aortic aneurysm.Technological improvement allows treatment in more and more complex cases. This review summarizes all grafts available in the market. At the best of our knowledge a complete review of most important trial on this topic are provided and at least technical tips and tricks for standard cases are recapitulated.

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