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Dive into the research topics where J. A. P. Da Silva is active.

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Featured researches published by J. A. P. Da Silva.


Annals of the Rheumatic Diseases | 2007

EULAR evidence-based recommendations for the management of fibromyalgia syndrome

Serena Carville; S Arendt-Nielsen; Henning Bliddal; F. Blotman; Jaime Branco; D. Buskila; J. A. P. Da Silva; Bente Danneskiold-Samsøe; Fitnat Dinçer; Chris Henriksson; Karl-Gösta Henriksson; Eva Kosek; K Longley; Geraldine M. McCarthy; Serge Perrot; M. Puszczewicz; P. Sarzi-Puttini; A. Silman; M. Späth; Ernest Choy

Objective: To develop evidence-based recommendations for the management of fibromyalgia syndrome. Methods: A multidisciplinary task force was formed representing 11 European countries. The design of the study, including search strategy, participants, interventions, outcome measures, data collection and analytical method, was defined at the outset. A systematic review was undertaken with the keywords “fibromyalgia”, “treatment or management” and “trial”. Studies were excluded if they did not utilise the American College of Rheumatology classification criteria, were not clinical trials, or included patients with chronic fatigue syndrome or myalgic encephalomyelitis. Primary outcome measures were change in pain assessed by visual analogue scale and fibromyalgia impact questionnaire. The quality of the studies was categorised based on randomisation, blinding and allocation concealment. Only the highest quality studies were used to base recommendations on. When there was insufficient evidence from the literature, a Delphi process was used to provide basis for recommendation. Results: 146 studies were eligible for the review. 39 pharmacological intervention studies and 59 non-pharmacological were included in the final recommendation summary tables once those of a lower quality or with insufficient data were separated. The categories of treatment identified were antidepressants, analgesics, and “other pharmacological” and exercise, cognitive behavioural therapy, education, dietary interventions and “other non-pharmacological”. In many studies sample size was small and the quality of the study was insufficient for strong recommendations to be made. Conclusions: Nine recommendations for the management of fibromyalgia syndrome were developed using a systematic review and expert consensus.


Annals of the Rheumatic Diseases | 2007

EULAR evidence-based recommendations on the management of systemic glucocorticoid therapy in rheumatic diseases

J. N. Hoes; J. W. G. Jacobs; Maarten Boers; D. Boumpas; Frank Buttgereit; N. Caeyers; Ernest Choy; Maurizio Cutolo; J. A. P. Da Silva; G. Esselens; L. Guillevin; Ingiäld Hafström; John R. Kirwan; J. Rovensky; A. Russell; Kenneth G. Saag; Björn Svensson; Rene Westhovens; H. Zeidler; J. W. J. Bijlsma

Objective: To develop evidence-based recommendations for the management of systemic glucocorticoid (GC) therapy in rheumatic diseases. Methods: The multidisciplinary guideline development group from 11 European countries, Canada and the USA consisted of 15 rheumatologists, 1 internist, 1 rheumatologist–epidemiologist, 1 health professional, 1 patient and 1 research fellow. The Delphi method was used to agree on 10 key propositions related to the safe use of GCs. A systematic literature search of PUBMED, EMBASE, CINAHL, and Cochrane Library was then used to identify the best available research evidence to support each of the 10 propositions. The strength of recommendation was given according to research evidence, clinical expertise and perceived patient preference. Results: The 10 propositions were generated through three Delphi rounds and included patient education, risk factors, adverse effects, concomitant therapy (ie, non-steroidal anti-inflammatory drugs, gastroprotection and cyclo-oxygenase-2 selective inhibitors, calcium and vitamin D, bisphosphonates) and special safety advice (ie, adrenal insufficiency, pregnancy, growth impairment). Conclusion: Ten key recommendations for the management of systemic GC-therapy were formulated using a combination of systematically retrieved research evidence and expert consensus. There are areas of importance that have little evidence (ie, dosing and tapering strategies, timing, risk factors and monitoring for adverse effects, perioperative GC-replacement) and need further research; therefore also a research agenda was composed.


Annals of the Rheumatic Diseases | 2002

Standardised nomenclature for glucocorticoid dosages and glucocorticoid treatment regimens : current questions and tentative answers in rheumatology

Frank Buttgereit; J. A. P. Da Silva; Maarten Boers; G.-R. Burmester; Maurizio Cutolo; J. W. G. Jacobs; John R. Kirwan; L. Kohler; P.L.C.M. van Riel; T. Vischer; J. W. J. Bijlsma

In rheumatology and other medical specialties there is a discrepancy between the widespread use and the imprecise designation of glucocorticoid treatment regimens. Verbal descriptions of glucocorticoid treatment regimens used in various phases of diseases vary between countries and institutions. Given this background, a workshop under the auspices of the EULAR Standing Committee on International Clinical Studies including Therapeutic Trials was held to discuss this issue and to seek a consensus on nomenclature for glucocorticoid treatment. This report summarises the panels discussion and recognises that answers derived from consensus conferences are not definitive. Nevertheless, recommendations on glucocorticoid treatment are presented that (1) reflect current and best knowledge available and (2) take into account current clinical practice. A question-answer rationale presentation style has been chosen to convey the messages, to summarise the meeting in a readable format, and to avoid dogmatism.


Annals of the New York Academy of Sciences | 1999

Sex Hormones and Glucocorticoids: Interactions with the Immune System

J. A. P. Da Silva

Gender and sex hormones exert powerful effects in the susceptibility and progression of numerous human and experimental autoimmune diseases. This has been attributed to direct immunological effects of sex hormones that impact a clear gender dimorphism on the immune system. Globally, estrogens depress T cell‐dependent immune function and diseases, but enhance antibody production and aggravate B cell‐dependent diseases. Androgens suppress both T‐cell and B‐cell immune responses and virtually always result in the suppression of disease expression. Defects in the hypothalamic‐pituitary‐adrenal (HPA) axis have been proposed to play an important role in the pathogenesis of autoimmune diseases. Glucocorticoid response to stress, including immune challenge, is strongly inhibited by androgens and enhanced by estrogens. Complex three‐way interactions between these systems appear to be involved in gender dimorphism of the immune system. This paper reviews the mechanisms involved in interactions between sex steroids and the HPA axis, addresses the possibility of similar interactions on immunocompetent cells, and explores an integrated perspective of the impact of these interplays on the immune system.


Clinical Rheumatology | 1992

The role of pregnancy in the course and aetiology of rheumatoid arthritis.

J. A. P. Da Silva; Tim D. Spector

SummaryThe aetiology of rheumatoid arthritis (RA) is unknown, although being female is generally recognized as the most important independent risk factor, the disease being 2 to 3 times more frequent in females than in males. The dramatic effect of pregnancy in rheumatoid arthritis has been documented for over 50 years. This review examines the evidence and possible mechanisms by which pregnancy modifies the disease process and may alter predisposition to the development of RA in later life.


Annals of the Rheumatic Diseases | 1995

Sex hormones, glucocorticoids and autoimmunity: facts and hypotheses.

J. A. P. Da Silva

Increasing knowledge on the regulation of immune responses over the past decade has made it clear that the immune system is involved in complex interactions with most, if not all, of the biological systems responsible for normal homeostasis. The evidence for important interplays between the immune and endocrine systems has launched the whole new field of neuroimmunoendocrinology which has attracted the interest of scientists and clinicians alike. The mechanisms involved in the interactions between adrenal and gonadal steroids and the immune system are poorly understood, however, and further clarification could have important implications in the understanding of the pathogenesis and treatment of autoimmune diseases.


Annals of the Rheumatic Diseases | 2010

Monitoring adverse events of low-dose glucocorticoid therapy: EULAR recommendations for clinical trials and daily practice

M.C. van der Goes; J. W. G. Jacobs; Maarten Boers; Talley Andrews; M. A. M. Blom-Bakkers; Frank Buttgereit; N. Caeyers; Maurizio Cutolo; J. A. P. Da Silva; L. Guillevin; John R. Kirwan; J. Rovensky; G. Severijns; S. Webber; Rene Westhovens; J. W. J. Bijlsma

Objective To develop recommendations on monitoring for adverse events (AEs) of low-dose glucocorticoid (GC) therapy (≤7.5 mg prednisone or equivalent daily) in clinical trials and daily practice. Methods Literature was searched for articles containing information on incidence and monitoring of GC-related AEs using PubMed, EMBASE and Cochrane databases. Second, the authors searched for broad accepted guidelines on the monitoring of certain AEs (eg, WHO guidelines on screening for diabetes). Available data were summarised and discussed among experts (rheumatologists and patients) of the EULAR Task Force to decide which potential AEs should be monitored, how and at which interval. Results Data on monitoring proved to be scarce; most articles were focused on therapeutic effects of GCs, not on occurrence and monitoring of AEs. Most recommendations had to be based on consensus. Those for clinical trials aimed at getting insights into incidence, prevalence and clinical relevance of AEs to create a comprehensive and valid AE-profile of GC therapy. The set of AEs to monitor is therefore more extensive, and often consists of assessments at baseline and at end of trials. Recommendations for daily practice are meant to protect patients from real dangers, which can be prevented or treated. Standard care monitoring needs NOT be extended for patients on low-dose GC therapy, except for osteoporosis (follow national guidelines), and baseline assessments of ankle edema, fasting blood glucose and risk factors for glaucoma. Conclusion Given the incompleteness of literature data, consensus-based recommendations on monitoring for GC-related AEs were created, separately for daily practice and clinical trials.


Annals of the Rheumatic Diseases | 2011

European League Against Rheumatism recommendations for the inclusion of patient representatives in scientific projects

M. de Wit; S. Berlo; G J Aanerud; Daniel Aletaha; J. W. J. Bijlsma; L. Croucher; J. A. P. Da Silva; B. Glüsing; Laure Gossec; Sarah Hewlett; Merryn Jongkees; D. Magnusson; Marieke Scholte-Voshaar; Pamela Richards; C. Ziegler; Tineke A. Abma

Objective To develop recommendations to enable successful inclusion of the patient perspective in European League Against Rheumatism (EULAR)-funded scientific research projects. Methods The EULAR standardised operational procedures for guideline development were followed. A systematic literature review was presented during a first task force meeting, including 3 rheumatologists, 1 rheumatologist/epidemiologist, 2 allied health professionals, 2 representatives of arthritis research organisations and 7 patient representatives, resulting in 38 statements. A Delphi method was carried out to reduce and refine the statements and agree on a set of eight. Next, a survey among a wider group of experts, professionals and patient representatives (n=42), was completed. Feedback from this wider group was discussed at the second meeting and integrated in the final wording of the recommendations. Subsequently, the level of agreement of the group of experts (n=81) was re-evaluated. Results The project resulted in a definition of patient research partner and agreement on a set of eight recommendations for their involvement in research projects. These recommendations provide practical guidance for organising patient participation, capturing (1) the role of patient research partners, (2) phase of involvement, (3) the recommended number, (4) recruitment, (5) selection, (6) support, (7) training and (8) acknowledgement. Conclusion Collaboration between patients and professionals in research is relatively new. Trials or effectiveness studies are not yet available. Nevertheless, it is possible to define recommendations for the inclusion of patients in research following a solid expert opinion based consensus process.


Annals of the Rheumatic Diseases | 2013

EULAR evidence-based and consensus-based recommendations on the management of medium to high-dose glucocorticoid therapy in rheumatic diseases

N. Duru; M.C. van der Goes; J. W. G. Jacobs; Tara Andrews; Maarten Boers; Frank Buttgereit; N. Caeyers; Maurizio Cutolo; S. Halliday; J. A. P. Da Silva; John R. Kirwan; David Ray; J. Rovensky; G. Severijns; Rene Westhovens; J. W. J. Bijlsma

To develop recommendations for the management of medium to high-dose (ie, >7.5 mg but ≤100 mg prednisone equivalent daily) systemic glucocorticoid (GC) therapy in rheumatic diseases. A multidisciplinary EULAR task force was formed, including rheumatic patients. After discussing the results of a general initial search on risks of GC therapy, each participant contributed 10 propositions on key clinical topics concerning the safe use of medium to high-dose GCs. The final recommendations were selected via a Delphi consensus approach. A systematic literature search of PubMed, EMBASE and Cochrane Library was used to identify evidence concerning each of the propositions. The strength of recommendation was given according to research evidence, clinical expertise and patient preference. The 10 propositions regarded patient education and informing general practitioners, preventive measures for osteoporosis, optimal GC starting dosages, risk-benefit ratio of GC treatment, GC sparing therapy, screening for comorbidity, and monitoring for adverse effects. In general, evidence supporting the recommendations proved to be surprisingly weak. One of the recommendations was rejected, because of conflicting literature data. Nine final recommendations for the management of medium to high-dose systemic GC therapy in rheumatic diseases were selected and evaluated with their strengths of recommendations. Robust evidence was often lacking; a research agenda was created.


Annals of the Rheumatic Diseases | 2010

Patient and rheumatologist perspectives on glucocorticoids: an exercise to improve the implementation of the European League Against Rheumatism (EULAR) recommendations on the management of systemic glucocorticoid therapy in rheumatic diseases

M.C. van der Goes; J. W. G. Jacobs; Maarten Boers; Talley Andrews; M. A. M. Blom-Bakkers; Frank Buttgereit; N. Caeyers; Ernest Choy; Maurizio Cutolo; J. A. P. Da Silva; L. Guillevin; M. Holland; John R. Kirwan; J. Rovensky; Kenneth G. Saag; G. Severijns; S. Webber; Rene Westhovens; J. W. J. Bijlsma

Objective To explore perspectives among patients and rheumatologists on glucocorticoid (GC) therapy and European League Against Rheumatism (EULAR) recommendations on the management of systemic GC therapy in order to enhance implementation of the recommendations. Methods Rheumatologists (from eight countries) and patients (from five countries) acquainted with GCs participated in separate meetings, during which positive and negative aspects of GC therapy were discussed and possible adverse events (AEs) were ranked for importance; in addition participants were asked to evaluate the published EULAR recommendations. The reports from these meetings and themes related to implementation of the recommendations were discussed during an international forum of the experts who had formulated the recommendations and patient participants. Results In all, 140 patients (78% women; mean age 53 years; 61% patients with rheumatoid arthritis) and 110 rheumatologists (mean work experience 15 years) participated in the meetings. Osteoporosis, diabetes and cardiovascular diseases were ranked among the five most worrisome AEs by patients and rheumatologists. In both groups, there was agreement with most of the recommendations; the recommendations on GC information cards and GC use during pregnancy scored lowest. Ideas to improve implementation of the recommendations and a research agenda were generated. Conclusion The patient and rheumatologist views on GCs corresponded to a large extent, reflected by concerns in both groups about osteoporosis, diabetes and cardiovascular diseases. Specific problems with the EULAR recommendations were identified and addressed to improve their implementation. This exercise shows that patient and rheumatologist perspectives should be included early in the process of formulating recommendations.

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Cátia Duarte

Hospitais da Universidade de Coimbra

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C. Duarte

Federal University of São Carlos

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Helena Canhão

Universidade Nova de Lisboa

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J. Canas da Silva

Instituto de Medicina Molecular

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Maarten Boers

VU University Medical Center

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