RESUMO
Brucellosis is a common worldwide zoonotic disease. Cutaneous manifestations are not specific and affect 1-14% of patients with brucellosis. Here, we describe 49-year-old female with fever and a diffuse maculopapular rash due to Brucella melitensis infection. Histopathology of skin biopsy revealed leukocytoclastic vasculitis; positive blood cultures for B. melitensis established the diagnosis of brucellosis. We provide a review of the relevant literature.
RESUMO
Tumor necrosis factor-alpha (TNF-α) and interleukin 1 beta (IL-1ß) genetic variants which resulting in TNF-α and IL-1 overproduction may increase susceptibility to autoimmune diseases such as atherosclerosis. We have studied the association of TNF-α G308A and IL-1ß (+3953) C/T polymorphism with myocardial infarction in Turkish population. 143 patients with myocardial infarction and 213 age-matched healthy controls were included in the study. In univariant analysis, the frequencies of IL-1ß, TNF-α genotype or allele, and haplotype of C:A and T:A were significantly elevated in patients when compared with those of controls. GA genotype of TNF-α, T allele of IL-1ß and A of TNF-α allele seem to be risk factors for myocardial infarction. In contrast, CC genotype of IL-1ß and GG genotype of TNF-α have protective effect against myocardial infarction. In multivariate logistic regression analysis, TNF-α A allele, gender and smoking were associated with myocardial infarction. In conclusion, we can state that TNF-α A allele might be associated with myocardial infarction.
Assuntos
Predisposição Genética para Doença , Interleucina-1beta/genética , Infarto do Miocárdio/genética , Polimorfismo de Nucleotídeo Único/genética , Fator de Necrose Tumoral alfa/genética , Estudos de Casos e Controles , Feminino , Genética Populacional , Haplótipos/genética , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Reação em Cadeia da Polimerase , Polimorfismo de Fragmento de Restrição , TurquiaRESUMO
Paroxysmal nocturnal hemoglobinuria (PNH) is a clonal disorder of bone marrow. It is characterized by blood cells lacking membrane proteins that are normally attached by the glycosylphosphatidylinositol (GPI) anchor. The cellular defect arises in a hematopoetic stem cell and is due to somatic mutation of the Phosphatidylinositol-glycan protein-A gene (PIG-A gene), encoding a protein needed for the biosynthesis of the anchor GPI. Paroxysmal nocturnal hemoglobinuria is presented by intravascular hemolysis, cytopenias, frequent infections, bone marrow hypoplasia, and a high incidence of life threatening venous thrombosis. Kidney involvement is usually benign and secondary to chronic tubular deposition of hemosiderin. Acute renal failure may occur in association with a hemolytic crisis. Here we report a case of 40-year-old woman with hematuria, pancytopenia, and acute renal failure due to PNH.
