Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:1.11.1.7 (peroxidase)
 65,474 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report a case of anti-neutrophil cytoplasmic antibody(ANCA)-associated rapid progressive glomerulonephritis (RPGN) that was treated with intravenous immunoglobulin (IVIg) therapy. A 37-year-old woman was admitted to our hospital because of a low-grade fever, general malaise, and a poor appetite. At the time of admission, her renal function had severely deteriorated (serum creatinine level 9.5 mg/dl; mean Ccr 3.3 ml/min) and she had severe anemia (Hb 6.6 g/dl). An immunological examination revealed the presence of ANCA-associated RPGN. A biopsy confirmed a diagnosis of pauci-immune-type necrotizing crescentic glomerulonephritis. After initial treatment with steroid pulse therapy (methylprednisolone, 1,000 mg/day x 3 days), her general condition deteriorated and two sessions of hemodialysis were required. On the 10th hospital day, a high dose of immunoglobulin was administered intravenously (IVIg 400 mg/kg/day x 5 days). This therapy immediately improved her general condition and lowered her serum titer of MPO-ANCA and her serum creatinine level. After two IVIg treatments, her MPO-ANCA titer returned to a normal level and her serum creatinine level improved from 9.5 mg/dl to 3.3 mg/dl. A second biopsy confirmed clinical improvement. These findings suggest that IVIg therapy is effective for cases of ANCA-associated glomerulonephritis that are difficult to treat using conventional immunosuppressive therapy.
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PMID:[Successful treatment of severe ANCA-associated RPGN with high-dose IVIg therapy]. 1505 8

Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a life-threatening condition that causes renal failure. Multiple myeloma (MM) is a malignant proliferation of monoclonal plasma cells in the blood that can also cause renal failure. The two diseases have high morbidity and mortality rates in the elderly, with a poor prognosis. A 64-year-old female presented to Xinqiao Hospital (Chonqing, China) with fatigue and a poor appetite that had been apparent for 6 weeks. Laboratory tests revealed a serum creatinine level of 10.31 mg/dl, a cytoplasmic ANCA titer of 1:10, a positive result for myeloperoxidase and a serum globulin level of 3.96 g/dl. A renal biopsy revealed crescent glomerulonephritis, combined with the rapid progression of renal function. Based on these observations (ANCA titer, crescent glomerulonephritis and rapid progression of renal function) a diagnosis of AAV was established. MM was confirmed by serum immunofixation electrophoresis combined with bone marrow aspiration. The present study discusses what is, to the best of our knowledge, the first case of AAV coexisting with MM in order to highlight it as a clinical concern.
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PMID:Possible intrinsic association of anti-neutrophil cytoplasmic antibody-associated vasculitis coexisting with multiple myeloma. 2760 44