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M Savi

Publications and source records attributed to M Savi.

54 records · Page 3Linked to original sources
PubMedDate not supplied

Hypergammaglobulinemic purpura of Waldenström. (A report of serologic and immunogenetic studies and long-term follow-up in 18 patients).

Data from a study carried out on a group of 18 patients with hypergammaglobulinemic purpura of Waldenström (HPW) followed-up for 3-14 years are reported in this paper. In 11 patients the syndrome was considered to be idiopathic, while in the remaining 7 it was associated with Sjögren's syndrome (SS). A marked (17/1) female prevalence was observed. Purpura was the presenting clinical manifestation in 9 patients, but it occurred at different points during the course of the disease; Raynaud's phenomenon was present in one third of patients. Serum gammaglobulin levels were higher than 2.2 g/dl in all the cases and higher than 3 g/dl in 9 cases. Immune complexes were detected in all patients. A significant serologic finding in our case series was represented by the frequency of anti-Ro (16/16) and anti-La (14/15) antibodies, clearly higher than that reported in SS patients. HLA typing showed a marked increase of B8 and DR3 antigens as well as A1,B8,DR3 haplotype, never reported in other autoimmune diseases. On the basis of serologic and immunogenetic features, HPW seems a clearly distinguishable entity among autoimmune vasculitis.

Adult↗
PubMedDate not supplied

Tiopronin-nephropathy: clinical, pathological, immunological and immunogenetic characteristics.

Nine patients who developed proteinuria while on Tiopronin (a D-Penicillamine-like drug) have been studied. Nephrotic syndrome was observed in six cases. Immunologic analysis revealed a high frequency of ANA positivity and RF seronegativity by the time nephropathy appeared. Six patients were biopsied. Immunofluorescence, electron and light microscopy studies showed: glomerulonephritis with segmental deposits in the mesangium and along the capillary walls in one patient, mesangioprolipherative glomerulonephritis in one case and stage 1 membranous glomerulonephritis in four cases. Immunogenetic typing disclosed a strong association with B35-Cw4 class I antigens.

Adult↗
PubMedDate not supplied

Association between DR3 and thrombocytopenia due to gold or tiopronin. Case reports and review of the literature.

Two patients who developed thrombocytopenia while on Tiopronin and gold salts respectively were HLA typed. Their common haplotype was A25(10), B8, DR3. A survey of the literature showed that the association between DR3 and the sudden onset form of thrombocytopenia is striking. A genetic predisposition, besides other unknown factors, seems to play a crucial role.

Amino Acids, Sulfur↗