ABSTRACT
El lupus eritematoso sistémico (LES) es una enfermedad multisistémica con manifestaciones proteicas. La pancreatitis lúpica es la segunda enfermedad más frecuentemente asociada con el abdomen agudo en relación con el LES. Si bien la pancreatitis aguda es rara, es clínicamente importante porque puede ser potencialmente mortal si no se trata de inmediato. En este artículo, describimos el caso de una niña de 10 años que desarrolló pancreatitis asociada a LES después del tratamiento con corticoesteroides que se complicó posteriormente debido a septicemia fúngica. Los signos y síntomas clínicos mejoraron marcadamente después de la administración de glucocorticoides y ciclofosfamida.
Systemic lupus erythematosus (SLE) is a multisystem disease with protean manifestations. Lupus pancreatitis is the second most common disease associated with SLE-related acute abdomen. Although acute pancreatitis is rare it is clinically important because this condition can be life threatening if not treated promptly. Here, we report a case of a 10-year-old girl who developed SLE-associated pancreatitis after steroids therapy that was subsequently complicated by fungal septicaemia. Her clinical symptoms and signs markedly improved after administration of glucocorticoids and cyclophosphamide.
Subject(s)
Humans , Female , Child , Pancreatitis , Child , Sepsis , Lupus Erythematosus, Systemic , MycosesABSTRACT
En este artículo, presentamos el caso de una paciente con glomerulonefritis aguda postestreptocócica (GNAPE) y anemia hemolítica autoinmunitaria (AHAI). Además de los signos típicos de la GNAPE, la paciente tuvo un resultado positivo en la prueba de antiglobulina directa y anticuerpos contra la cardiolipina sin que presentara las manifestaciones clínicas típicas del síndrome antifosfolipídico. Este caso genera dudas respecto de la relación entre el estreptococo y el desarrollo de anemia hemolítica autoinmunitaria en los niños. Este caso destaca la posibilidad de que las infecciones estreptocócicas de nuestra paciente podrían haber causado la anemia, ya sea en el contexto de anticuerpos antifosfolipídicos preexistentes o por haber desencadenado el desarrollo de anticuerpos patogénicos, que luego lleva a la presentación clínica de hemólisis. Se presume que, en la paciente, los anticuerpos contra la cardiolipina inducidos por la infección estreptocócica podrían tener una función directa en la presentación clínica de AHAI.
We present a case of acute post-streptococcal glomerulonephritis (APSGN) with autoimmune hemolytic anemia (AIHA). Along with the classic findings of APSGN, the patient had a positive direct antiglobulin test and an anticardiolipin antibody without any typical clinical manifestations of antiphospholipid syndrome (APS). This case raises questions of the relationship between Streptococcus and the development of autoimmune hemolytic anemia in children. Our case highlights the possibility that the streptococcal infections in this patient might be responsible for her anemia, either in setting of underlying antiphospholipid antibodies, or in having triggered the development of pathogenic antibodies, which subsequently leads to the clinical evolution of hemolysis. It is presumed that in our case, the anticardiolipin antibody induced by streptococcal infection may play a direct role in the clinical evolution of AIHA.
Subject(s)
Humans , Female , Child , Antibodies, Anticardiolipin/blood , Glomerulonephritis/blood , Anemia, Hemolytic, Autoimmune/blood , Streptococcal Infections/complications , Glomerulonephritis/microbiology , Anemia, Hemolytic, Autoimmune/complicationsABSTRACT
OBJECTIVE: Epstein-Barr virus (EBV) is a ubiquitous human γ-herpes virus, which can adapt and evade host immune defense. Dendritic cells (DCs) play a pivotal role in the initiation and maintenance of immune responses. This study investigated the effects of EBV on cord blood monocytes derived DCs (CBDC). METHODS: Monocytes were isolated from cord blood and cultured in medium containing recombinant IL-4 and GM-CSF to induce DCs development. B95-8 supernatant was added in monocytes culture medium for EBV infection at day 0. Phenotypic characterization of DCs, apoptotic cells, and mitochondrial membrane potential (MMP) were detected by flow cytometry. The morphology was observed by Hoechst 33258 staining and TUNEL staining, the expression of X-linked inhibitor of apoptosis protein (XIAP) was detected by Western blotting assay and caspase 3, 8 and 9 activity was measured. RESULTS: Phenotypic characterization of DCs was changed in EBV-treated group. Chromatin condensation and DNA fragmentation were observed in EBV induced CBDC apoptosis. In addition, caspase 3, caspase 8, and caspase 9 activation were enhanced in the EBV-treated group. This was accompanied by the loss of MMP. Furthermore, XIAP expression was down-regulated in the EBV-treated group and compared to mock-infected group. CONCLUSION: These results suggested that EBV could inhibit CBDC phenotypic differentiation, and induce CBDC apoptosis in caspase-dependent manner with involvement of the mitochondrial pathway. This might help EBV to evade host immune responses to establish persistent infection.