Low levels of vitamin-D are associated with neuropathy and lymphoma among patients with Sjögren's syndrome.

International audienceBACKGROUND/PURPOSE: Primary Sjögren's syndrome (SS) is a chronic autoimmune disease primarily involving the exocrine glands. The clinical picture of SS ranges from exocrinopathy to systemic disease affecting the lung, kidney, liver, skin, musculockeletal and nervous systems. The morbidity of SS is mainly determined by extraglandular disease and increased prevalence of lymphoma. Environmental and hormonal factors, such as vitamin-D may play a role in the pathogenic process and disease expression. Thus, we aimed to evaluate levels of vitamin-D and their association with manifestations of SS. METHODS: Vitamin-D levels were determined in 176 primary SS patients and 163 matched healthy volunteers utilizing the LIAISON chemiluminescent immunoassays (DiaSorin-Italy). A correlation between vitamin-D levels and clinical and serological manifestations of SS was performed. RESULTS: Mean vitamin-D levels were comparable between SS patients and control 21.2 ± 9.4 ng/ml and 22.4 ± 10 ng/ml, respectively. Peripheral neuropathy was diagnosed in 23% of SS patients and associated with lower vitamin-D levels (18.6 ± 5.5 ng/ml vs. 22.6±8 ng/ml (p = 0.04)). Lymphoma was diagnosed in 4.3% of SS patients, who had lower levels of vitamin-D (13.2 ± 6.25 ng/ml), compared to SS patients without lymphoma (22 ± 8 ng/ml), (p = 0.03). Other clinical and serological manifestations did not correlate with vitamin-D status. CONCLUSIONS: In this study, low levels of vitamin-D correlated with the presence of peripheral neuropathy and lymphoma among SS patients. The link between vitamin-D and neuropathy or lymphoma was reported in other conditions, and may support a role for vitamin-D in the pathogenesis of these processes. Plausible beneficial effect for vitamin-D supplementation may thus be suggested

Low levels of vitamin-D are associated with neuropathy and lymphoma among patients with Sjogren's syndrome

Background/purpose: Primary Sjogren’s syndrome (SS) is a chronic autoimmune disease primarily involving the exocrine glands. The clinical picture of SS ranges from exocrinopathy to systemic disease affecting the lung, kidney, liver, skin, musculockeletal and nervous systems. The morbidity of SS is mainly determined by extraglandular disease and increased prevalence of lymphoma. Environmental and hormonal factors, such as vitamin-D may play a role in the pathogenic process and disease expression. Thus, we aimed to evaluate levels of vitamin-D and their association with manifestations of SS. Methods: Vitamin-D levels were determined in 176 primary SS patients and 163 matched healthy volunteers utilizing the LIAISON chemiluminescent immunoassays (DiaSorin-Italy). A correlation between vitamin-D levels and clinical and serological manifestations of SS was performed. Results: Mean vitamin-D levels were comparable between SS patients and control 21.2 +/- 9.4 ng/ml and 22.4 +/- 10 ng/ml, respectively. Peripheral neuropathy was diagnosed in 23% of SS patients and associated with lower vitamin-D levels (18.6 +/- 5.5 ng/ml vs. 22.6 +/- 8 ng/ml (p = 0.04)). Lymphoma was diagnosed in 4.3% of SS patients, who had lower levels of vitamin-D (13.2 +/- 6.25 ng/ml), compared to SS patients without lymphoma (22 +/- 8 ng/ml), (p = 0.03). Other clinical and serological manifestations did not correlate with vitamin-D status. Conclusions: In this study, low levels of vitamin-D correlated with the presence of peripheral neuropathy and lymphoma among SS patients. The link between vitamin-D and neuropathy or lymphoma was reported in other conditions, and may support a role for vitamin-D in the pathogenesis of these processes. Plausible beneficial effect for vitamin-D supplementation may thus be suggested. (C) 2012 Elsevier Ltd. All rights reserved

Prevalência de anticorpos séricos contra rubéola em doenças autoimunes

Introducción: La asociación entre infecciones y enfermedades autoinmunes (AID) ha sido bien descrita en la literatura médica. Varios agentes infecciosos han sido implicados como inductores de respuestas autoinmunes, como el parvovirus B19, el virus de Epstein-Barr, el citomegalovirus y los virus de la hepatitis. Pacientes y métodos: Examinamos 1.173 sueros de pacientes con 14 AID diferentes y 238 sueros de controles sanos geográficamente coincidentes, en busca de evidencia de infección previa con rubéola. Todas las muestras se analizaron para detectar la presencia de anticuerpos séricos contra la rubéola utilizando el sistema Bio-Rad BioPlex 2200. Resultados: Como grupo, los pacientes con AID tuvieron una mayor prevalencia de anticuerpos IgM anti-rubéola en comparación con los controles sanos (11.7% versus 5.4%; P = 0.001). La prevalencia de anticuerpos IgM anti-rubéola fue significativamente mayor en la AID 5/14, es decir, en pacientes con arteritis de células gigantes (33.3%), cirrosis biliar primaria (24%), síndrome antifosfolípido (20.6%), polimiositis (16%) y enfermedad inflamatoria intestinal (16%). Se detectó una prevalencia similar de anticuerpos IgM anti-rubéola entre los controles de diferentes países. Se detectó una alta prevalencia de anticuerpos IgG anti-rubéola entre pacientes con AID (89,9%) y controles. Conclusión: La mayor prevalencia de anticuerpos IgM anti-rubéola en AID sugiere un posible papel para la rubéola en la etiopatogenia de varios AID.Introduction: The association between infections and autoimmune diseases (AID) has been well described in the medical literature. Several infectious agents have been implicated as inducers of autoimmune responses, such as Parvovirus B19, Epstein-Barr virus, cytomegalovirus, and hepatitis viruses. Patients and methods: We examined 1, 173 sera from patients with 14 different AID and 238 sera from geographically matched healthy controls, for evidence of prior infection with rubella. All samples were tested for the presence of serum antibodies against rubella using the Bio-Rad BioPlex 2200 system. Results: As a group, patients with AID had a higher prevalence of IgM anti-rubella antibodies as compared to healthy controls (11. 7% versus 5. 4%; P = 0. 001). The prevalence of IgM anti-rubella antibodies was signifi cantly higher in 5/14 AID, namely in patients with giant cell arteritis (33. 3%), primary biliary cirrhosis (24%), antiphospholipid syndrome (20. 6%), polymyositis (16%), and infl ammatory bowel disease (16%). A similar prevalence of IgM anti-rubella antibodies was detected among controls from different countries. A high prevalence of IgG anti-rubella antibodies was detected among patients with AID (89. 9%) and controls. Conclusion: The increased prevalence of IgM anti-rubella antibodies in AID suggests a possible role for rubella in the etiopathogenesis of several AID.INTRODUÇÃO: A associação entre infecções e doenças autoimunes (DAIs) está bem descrita na literatura médica. Vários agentes infecciosos foram implicados como indutores de respostas autoimunes, tais como o parvovírus B19, o vírus Epstein-Barr, o citomegalovírus e os vírus da hepatite. PACIENTES E MÉTODOS: Foram examinamos 1.173 soros de pacientes com 14 doenças autoimunes diferentes e 238 soros de controles saudáveis pareados geograficamente na busca por evidência de infecção rubeólica prévia. Todas as amostras foram testadas para a presença de anticorpos séricos contra rubéola usando-se o sistema Bio-Rad BioPlex 2200. RESULTADOS: Como um grupo, os pacientes com DAIs apresentaram maior prevalência de anticorpos IgM antirrubéola em comparação aos controles saudáveis (11,7% versus 5,4%; P = 0,001). A prevalência de anticorpos IgM antirrubéola foi significativamente maior em 5/14 DAIs, a saber: arterite de células gigantes (33,3%), cirrose biliar primária (24%), síndrome antifosfolipídica (20,6%), polimiosite (16%) e doença intestinal inflamatória (16%). Detectou-se prevalência semelhante de anticorpos IgM antirrubéola nos controles de diferentes países. Detectou-se alta prevalência de anticorpos IgG antirrubéola em pacientes com DAIs (89,9%) e controles. CONCLUSÃO: A prevalência aumentada de anticorpos IgM antirrubéola em DAIs sugere que a rubéola possa desempenhar um papel na etiopatogênese de várias DAIs.

Prevalência de anticorpos séricos contra rubéola em doenças autoimunes

Introducción: La asociación entre infecciones y enfermedades autoinmunes (AID) ha sido bien descrita en la literatura médica. Varios agentes infecciosos han sido implicados como inductores de respuestas autoinmunes, como el parvovirus B19, el virus de Epstein-Barr, el citomegalovirus y los virus de la hepatitis. Pacientes y métodos: Examinamos 1.173 sueros de pacientes con 14 AID diferentes y 238 sueros de controles sanos geográficamente coincidentes, en busca de evidencia de infección previa con rubéola. Todas las muestras se analizaron para detectar la presencia de anticuerpos séricos contra la rubéola utilizando el sistema Bio-Rad BioPlex 2200. Resultados: Como grupo, los pacientes con AID tuvieron una mayor prevalencia de anticuerpos IgM anti-rubéola en comparación con los controles sanos (11.7% versus 5.4%; P = 0.001). La prevalencia de anticuerpos IgM anti-rubéola fue significativamente mayor en la AID 5/14, es decir, en pacientes con arteritis de células gigantes (33.3%), cirrosis biliar primaria (24%), síndrome antifosfolípido (20.6%), polimiositis (16%) y enfermedad inflamatoria intestinal (16%). Se detectó una prevalencia similar de anticuerpos IgM anti-rubéola entre los controles de diferentes países. Se detectó una alta prevalencia de anticuerpos IgG anti-rubéola entre pacientes con AID (89,9%) y controles. Conclusión: La mayor prevalencia de anticuerpos IgM anti-rubéola en AID sugiere un posible papel para la rubéola en la etiopatogenia de varios AID.Introduction: The association between infections and autoimmune diseases (AID) has been well described in the medical literature. Several infectious agents have been implicated as inducers of autoimmune responses, such as Parvovirus B19, Epstein-Barr virus, cytomegalovirus, and hepatitis viruses. Patients and methods: We examined 1, 173 sera from patients with 14 different AID and 238 sera from geographically matched healthy controls, for evidence of prior infection with rubella. All samples were tested for the presence of serum antibodies against rubella using the Bio-Rad BioPlex 2200 system. Results: As a group, patients with AID had a higher prevalence of IgM anti-rubella antibodies as compared to healthy controls (11. 7% versus 5. 4%; P = 0. 001). The prevalence of IgM anti-rubella antibodies was signifi cantly higher in 5/14 AID, namely in patients with giant cell arteritis (33. 3%), primary biliary cirrhosis (24%), antiphospholipid syndrome (20. 6%), polymyositis (16%), and infl ammatory bowel disease (16%). A similar prevalence of IgM anti-rubella antibodies was detected among controls from different countries. A high prevalence of IgG anti-rubella antibodies was detected among patients with AID (89. 9%) and controls. Conclusion: The increased prevalence of IgM anti-rubella antibodies in AID suggests a possible role for rubella in the etiopathogenesis of several AID.INTRODUÇÃO: A associação entre infecções e doenças autoimunes (DAIs) está bem descrita na literatura médica. Vários agentes infecciosos foram implicados como indutores de respostas autoimunes, tais como o parvovírus B19, o vírus Epstein-Barr, o citomegalovírus e os vírus da hepatite. PACIENTES E MÉTODOS: Foram examinamos 1.173 soros de pacientes com 14 doenças autoimunes diferentes e 238 soros de controles saudáveis pareados geograficamente na busca por evidência de infecção rubeólica prévia. Todas as amostras foram testadas para a presença de anticorpos séricos contra rubéola usando-se o sistema Bio-Rad BioPlex 2200. RESULTADOS: Como um grupo, os pacientes com DAIs apresentaram maior prevalência de anticorpos IgM antirrubéola em comparação aos controles saudáveis (11,7% versus 5,4%; P = 0,001). A prevalência de anticorpos IgM antirrubéola foi significativamente maior em 5/14 DAIs, a saber: arterite de células gigantes (33,3%), cirrose biliar primária (24%), síndrome antifosfolipídica (20,6%), polimiosite (16%) e doença intestinal inflamatória (16%). Detectou-se prevalência semelhante de anticorpos IgM antirrubéola nos controles de diferentes países. Detectou-se alta prevalência de anticorpos IgG antirrubéola em pacientes com DAIs (89,9%) e controles. CONCLUSÃO: A prevalência aumentada de anticorpos IgM antirrubéola em DAIs sugere que a rubéola possa desempenhar um papel na etiopatogênese de várias DAIs.