📇 Rhumatologue · PARIS · (75) · Hospitalier
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2 raisons identifiées
Praticien-chercheur
16 articles scientifiques publiés — formation continue solide
Délais de RDV courts dans la région
336.2 rhumatos / 100 000 hab. — département bien doté
✨ Génération du profil synthétique IA en cours…
CABINET DU DR CHRISTOPHE ARNAL
4 AVENUE D EYLAU, 75116 PARIS
Secteur de conventionnement non disponible (médecin hospitalier ou non présent dans l'Annuaire santé CNAM des libéraux conventionnés).
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Lien Doctolib = recherche Google site:doctolib.fr (le 1er résultat est presque toujours le profil correct s'il existe).
Arthritis and rheumatism · 2007
AbstractObjectiveBlau syndrome and early‐onset sarcoidosis are NOD2 gene–associated chronic autoinflammatory diseases characterized by skin rash, arthritis, and/or eye involvement, with noncaseating granulomata as their pathologic hallmark. This study was undertaken to describe the expanded clinical phenotype, treatment outcomes, and NOD2 gene mutation analysis in a Spanish cohort with pediatric granulomatous arthritis, a chronic disease resembling Blau syndrome/early‐onset sarcoidosis.MethodsClinical, laboratory, and treatment data on the 12 patients in the cohort were obtained through direct interviews. NOD2 gene analysis was performed in a central laboratory, by bidirectional sequencing. Cytokine levels were measured using the human Flex‐Set cytokine bead array.ResultsThe classic Blau syndrome/early‐onset sarcoidosis triad of skin rash, arthritis, and recurrent uveitis was identified in 5 patients (41.7%), whereas 7 patients (58.3%) presented with fewer than 3 of the classic features. Novel atypical manifestations such as persistent fever and myocardiopathy were also observed. NOD2 analysis revealed 1 heterozygous mutation in each patient, and familial studies confirmed its full penetrance. Of the 12 cases, 58.3% were sporadic, due to de novo mutations. Four different missense mutations on exon 4 were detected. Two of them (R334W and R334Q) were recurrent mutations and were found in 77.8% of the Spanish families, whereas the other 2 (C495Y and R587C) were novel. In the patient who received anakinra treatment, all clinical inflammatory symptoms improved and plasma cytokine levels normalized.ConclusionThese findings indicate that the expanding clinical heterogeneity of the disease (that is, the presentation of incomplete forms of the classic triad and atypical manifestations) and the high prevalence of sporadic cases should alert clinicians to the possible genetic basis of the condition and support the inclusion of DNA analysis as a diagnostic test. The positive response to anakinra observed in 1 patient suggests a new potential therapeutic approach that merits further investigation, and suggests that the pathogenesis of pediatric granulomatous arthritis may involve interleukin‐1–mediated events.
The Journal of rheumatology · 2002
Scandinavian journal of rheumatology · 2010
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