Objectives We studied the involvement of serum-complement (C') and oxidative stress in the hemolytic anemias Paroxysmal Nocturnal Hemoglobinuria (PNH) and Auto-Immune Hemolytic Anemia (AIHA), and the effect of Fermented Papaya Preparation (FPP), an antioxidant-containing yeast fermentation product of Carica papaya Linn. Methodology Normal human red blood cells (RBC) treated with the sulphydryl ...

BACKGROUND In autoimmune haemolytic anaemia (AIHA), autoreactive antibodies directed against red blood cells are up-regulated, leading to erythrocyte death. Mycoplasma suis infections in pigs induce AIHA of both the warm and cold types. The aim of this study was to identify the target autoantigens of warm autoreactive IgG antibodies. Sera from experimentally M. suis-infected pigs were screened ...

BACKGROUND Transfusion is a cornerstone of the management of sickle cell disease but carries a high risk of hemolytic transfusion reaction, probably because of differences in erythrocyte antigens between blood donors of European descent and patients of African descent. Patients may experience hemolytic transfusion reactions that are delayed by from a few days to two weeks and manifest as acute ...

OBJECTIVE To report a case of Hodgkin's disease presenting with immune hemolytic anemia. CLINICAL PRESENTATION AND INTERVENTION A 47-year-old man was admitted to hospital because of weight loss, fever, and inguinal lymph node adenopathy. Biopsy of the inguinal lymph node revealed mixed-cellularity Hodgkin's disease. Three days after starting combined chemotherapy, the patient showed evidence ...

Molecular mimicry is considered as a mechanism by which infectious pathogens may break immunological tolerance and cause autoimmune disease. It implicates that peptides shared between pathogen and host may induce cross-reactive immune reactions. According to this hypothesis, the resulting autoimmune response actually represents a secondary immune response. It is mediated by cross-reactive T cel...

Background: Splenic infarction (SI) is a rare clinical entity seldom encountered in veterinary medicine. Its most frequent causes include thromboembolic status, splenomegaly, and cardiac disease. Although thrombotic elements from the circulation provide the most common context for thromboembolic SIs, immune-mediated hemolytic anemia (IMHA) has not been reported as an underlying...

Complement is a complex innate immune surveillance system, playing a key role in defense against pathogens and in host homeostasis. The complement system is initiated by conformational changes in recognition molecular complexes upon sensing danger signals. The subsequent cascade of enzymatic reactions is tightly regulated to assure that complement is activated only at specific locations requiri...