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  • 1
    ISSN: 1437-7799
    Keywords: Key words IgA nephropathy ; Interstitial nephritis ; Behçet's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 46-year-old man presenting with pharyngodynia and fever was treated with non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics, without initial improvement. Conjunctival injection in the left eye appeared soon thereafter, followed by an ulcer on the glans penis 2 weeks later. On admission to our hospital, his urine was positive for protein and occult blood. Multiple folliculitis-like eruptions were noted over the lumbar region to the abdomen. Based on these mucocutaneous symptoms and a positive reaction for HLA-B51 antigen, a diagnosis of Behçet's disease was made. Renal biopsy revealed IgA nephropathy and interstitial nephritis. Urinary and other symptoms were alleviated with continued anti-inflammatory therapy. A lymphocyte stimulation test was performed to determine whether there was any relationship of the interstitial nephritis to drugs used in his treatment (ciprofloxacin, cefazolin sodium, or the NSAIDs), but results were not conclusive. Behçet's disease complicated by nephropathy, notably interstitial nephritis, is rare; this valuable experience is now reported.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1437-7799
    Keywords: Key words IgA nephropathy ; Factor XI deficiency ; Cross reactive material-positive ; Coagulation nephropathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 20-year-old man presented with proteinuria of increasing intensity, and persistent microhematuria. His renal biopsy findings were compatible with the diagnosis of IgA nephropathy, with diffusely increased mesangial matrix in the glomeruli shown on light microscopy and granular IgA deposition in the mesangium shown on immunofluorescence microscopy. Although his bleeding time and platelet counts were normal, he had a prolonged activated partial thromboplastin time (APTT). Coagulation studies showed that factor XI activity was decreased, to 39%. We immunoblotted plasma samples obtained from the patient and from one normal individual with polyclonal anti-human factor XI, and demonstrated that the factor XI antigen level of the patient was comparable to that of the normal control. A family study showed that the father of the patient had a similar coagulation abnormality, with normal factor XI antigen level. These findings suggest that the patient has a congenital factor XI abnormality with cross-reactive material positivity complicating IgA nephropathy. The findings imply the possible importance of clotting disorders in the pathogenesis and/or development of IgA nephropathy.
    Type of Medium: Electronic Resource
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