RESUMEN
Hypercalcemia is a common clinical problem. The most frequent causes of hypercalcemia include primary hyperparathyroidism and malignancy; systemic lupus erythematosus (SLE) is a very rare cause of hypercalcemia. Here we describe a case of symptomatic severe hypercalcemia, which developed during a lupus flare. After treatment with intravenous fluids, diuretics, pamidronate, and hemodialysis, calcium levels normalized and were maintained on low-dose prednisolone treatment. To the best of our knowledge, this is the first case of hypercalcemia in a patient with SLE in Korea. Clinicians should consider lupus as a differential diagnosis for patients with severe hypercalcemia.
Asunto(s)
Humanos , Calcio , Diagnóstico Diferencial , Diuréticos , Hipercalcemia , Hiperparatiroidismo Primario , Corea (Geográfico) , Lupus Eritematoso Sistémico , Proteína Relacionada con la Hormona Paratiroidea , Prednisolona , Diálisis RenalRESUMEN
No abstract available.
Asunto(s)
Humanos , Aspergilosis , Coma Hiperglucémico Hiperosmolar no Cetósico , Fallo Renal Crónico , SinusitisRESUMEN
Analysis of the T-cell receptor (TCR) repertoire of innate CD4+ T cells selected by major histocompatibility complex (MHC) class II-dependent thymocyte-thymocyte (T-T) interaction (T-T CD4+ T cells) is essential for predicting the characteristics of the antigens that bind to these T cells and for distinguishing T-T CD4+ T cells from other types of innate T cells. Using the TCRmini Tg mouse model, we show that the repertoire of TCRalpha chains in T-T CD4+ T cells was extremely diverse, in contrast to the repertoires previously described for other types of innate T cells. The TCRalpha chain sequences significantly overlapped between T-T CD4+ T cells and conventional CD4+ T cells in the thymus and spleen. However, the diversity of the TCRalpha repertoire of T-T CD4+ T cells seemed to be restricted compared with that of conventional CD4+ T cells. Interestingly, the frequency of the parental OT-II TCRalpha chains was significantly reduced in the process of T-T interaction. This diverse and shifted repertoire in T-T CD4+ T cells has biological relevance in terms of defense against diverse pathogens and a possible regulatory role during peripheral T-T interaction.