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• W1723083722 abstract "Immune regulation is among the noncalcemic effects of vitamin D. So, this vitamin may play a role in autoimmune diseases such as systemic lupus erythematosus (SLE). To study the prevalence of vitamin D deficiency in SLE and its association with clinical, serological and treatment profile as well as with disease activity. Serum OH vitamin D3 levels were measured in 153 SLE patients and 85 controls. Data on clinical, serological and treatment profile of lupus patients were obtained through chart review. Blood cell count and SLEDAI (SLE disease activity index) were measured simultaneously with vitamin D determination. SLE patients have lower levels of vitamin D than controls (p = 0.03). In univariate analysis serum vitamin D was associated with leukopenia (p = 0.02), use of cyclophosphamide (p = 0.007) and methotrexate (p = 0.03). A negative correlation was verified with prednisone dose (p = 0.003). No association was found with disease activity measured by SLEDAI (p = 0.88). In a multiple regression study only leukopenia remained as an independent association (B = 4.04; p = 0.02). A negative correlation of serum vitamin level with granulocyte (p = 0.01) was also found, but not with lymphocyte count (p = 0.33). SLE patients have more deficiency of vitamin D than controls. This deficiency is not associated with disease activity but with leucopenia (granulocytopenia). A regulação imune está entre os efeitos não calcêmicos da vitamina D. Assim, essa vitamina pode influenciar em doenças autoimunes, como o lúpus eritematoso sistêmico (LES). Estudar a prevalência da deficiência de vitamina D no LES e sua associação com o perfil clínico, sorológico e de tratamento, bem como com a atividade da doença. Mensuraram-se os níveis séricos de OH-vitamina D3 em 153 pacientes com LES e 85 controles. Os dados sobre o perfil clínico, sorológico e de tratamento de pacientes com lúpus foram obtidos por meio da revisão de prontuários. Simultaneamente à determinação da vitamina D, foi feito um hemograma e foi aplicado o Sledai (SLE disease activity índex [índice de atividade da doença no LES]). Os pacientes com LES tinham níveis mais baixos de vitamina D do que os controles (p = 0,03). Na análise univariada, a vitamina D sérica esteve associada à leucopenia (p = 0,02) e ao uso de ciclofosfamida (p = 0,007) e metotrexato (p = 0,03). Foi verificada uma correlação negativa com a dose de prednisona (p = 0,003). Não foi encontrada associação com a atividade da doença medida pelo Sledai (p = 0,88). Em um estudo de regressão múltipla, somente a leucopenia permaneceu como uma associação independente (B = 4,04; p = 0,02). Também foi encontrada correlação negativa do nível sérico de vitamina D com os granulócitos (p = 0,01), mas não com a contagem de linfócitos (p = 0,33). Os pacientes com LES têm mais deficiência de vitamina D do que os controles. Essa deficiência não está associada com a atividade da doença, mas com a leucopenia (granulocitopenia)." @default.
• W1723083722 created "2016-06-24" @default.
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• W1723083722 date "2016-05-01" @default.
• W1723083722 modified "2023-09-27" @default.
• W1723083722 title "On lupus, vitamin D and leukopenia" @default.
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• W1723083722 doi "https://doi.org/10.1016/j.rbre.2015.08.008" @default.
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