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  • Title: Urinary albumin excretion in patients with familial Mediterranean fever: a pilot study.
    Author: Oren S, Viskoper JR, Ilan S, Schlesinger M.
    Journal: Am J Med Sci; 1991 Jun; 301(6):375-8. PubMed ID: 2039023.
    Abstract:
    Amyloidosis of the kidney is the most threatening complication in familial Mediterranean fever (FMF), and colchicine has been shown to reduce its occurrence. In the preclinical stage of kidney amyloidosis, no proteinuria is observed by the standard Albustix method. However, whether these patients have normal or increased urinary albumin excretion is not known. The purpose of this study was to evaluate albumin excretion in FMF patients treated with colchicine and to compare these values to those of a normal control group. Twenty-two subjects with FMF were compared with 16 normal subjects matched with regard to age and body surface area. The two groups did not differ with regard to female/male ratio and arterial pressure. Urine samples were collected overnight while patients were recumbent and in the daytime while they were ambulant. After measuring albumin concentration (Ua) by radio-immunoassay and creatinine concentration through the standard method, the urinary albumin excretion rate (UaV) and urinary albumin creatinine ratio (Ua/c) were calculated. In the FMF group, three patients had microalbuminuria--defined as an albumin excretion rate higher than 20 micrograms/min. Two of them had this condition only in the early morning collection. These three patients were characterized by a longer duration of symptoms (18 vs. 9 years). No patient in the control group had microalbuminuria. The mean UaV in the FMF group did not differ significantly from that of the control group.(ABSTRACT TRUNCATED AT 250 WORDS)
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