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Biomedical subjects

M Vilardell

Publications and source records attributed to M Vilardell.

At least 127 records · Page 7Linked to original sources
PubMed1981

[Essential mixed cryoglobulinaemia and hepatitis B virus (author's transl)].

Essential mixed cryoglobulinaemia is a nosological entity described by Meltzer and Franklin in 1966 and characterized by asthenia, arthralgias, purpura, glomerulonephritis and mixed IgM-IgG cryoglobulinaemia. Hepatitis B virus (HBV) markers were studied in the sera and cryoprecipitates of 6 patients with the syndrome. Five (83,3%) had at least one HBV marker and three (50%) had HBsAg either in the serum or in the cryoprecipitate. HBV therefore seems to be involved in the pathogenesis of essential mixed cryoglobulinaemia in a large number of cases.

Cryoglobulinemia↗
PubMed1980

[Absence of antiDNA antibodies in the cryoglobulins of a case with sicca syndrome (author's transl)].

Cryoglobulins are serum immunoglobulins (immunocomplexes) that precipitate in the cold and redissolve on warming. Cryoglobulins from patients with several diseases showed the presence of antiDNA antibodies when previously underwent incubation in acid buffer. The possibility that antiDNA antibodies might constitute the immunocomplexes found in patients with systemic lupus erythematosus and with other connective tissue diseases is suggested. Negative findings in relation to the presence of antiDNA antibodies in cryoglobulins of a case with sicca syndrome are reported.

Antibodies↗
PubMed1980

[Mixed essential cryoglobulinemia. Report of five cases (author's transl)].

Cryoglobulins are serum immunoglobulins which precipitate in the cold and redissolve on warming at 37 degrees C. According to its immunochemical composition three different types have been described. Cryoglobulins have been reported associated with hematologic disorders, systemic diseases, infectious conditions, and diseases of the liver and kidneys. There is also an idiopathic variant called essential cryoglobulinemia. Five patients (four males) with mixed essential cryoglobulinemia are reported. Common clinical manifestations included fever, articular symptoms, purpura, glomerulonephritis, Raynaud's phenomenon, erythematomacular cutaneous eruption, polyneuritis and abdominal pain. Serum activity of rheumatoid factor has been detected in three cases; in other three decreased levels of serum complement have been found. Serum HBsAg was negative in four cases (passive hemagglutination technique). It is possible that all cases of mixed essential cryoglobulinemia may correspond to bacterial, viral or fungal occult infections.

Adult↗
PubMed1980

[Cryoglobulins and liver disease. Study of 34 cases (author's transl)].

Cryoglobulins are immunoglobulins characterized by precipitating when serum is cooled and redissolving when serum is heated. There is strong evidence to consider mixed cryoglobulins as circulating immunocomplexes, and various investigators have applied the precipitating physical property as a method to isolate immunocomplexes. In the recent years some authors have reported the presence of cryoglobulins in acute and chronic liver diseases of diverse etiology. This study investigates the presence of cryoglobulins in 34 patients with different liver diseases. Mixed cryoglobulins were detected in eight patients (23.5 percent), but only three of them had clinical symptoms attributable to the existence of cryoglobulins. In relation to the etiology of the liver disease, the highest frequency has been found among patients with hepatopathies of undetermined origin.

Aged↗
PubMed1980

[Cryoglobulins in systemic and rheumatological diseases. Report of 70 cases (author's transl)].

Cryoglobulins are immunoglobulins characterized by precipitating when serum is cooled and redissolving when serum is heated. There is strong evidence to consider mixed cryoglobulins as circulating immunocomplexes. Cryoglobulins have been demonstrated in association to hematologic, hepatic, lymphoproliferative, autoimmune and infectious conditions. There is also an essential or idiopathic variant. The present report studies a series of 70 patients with several rheumatic and systemic diseases, and a group of ten patients with cutaneous vasculitis. Significant levels of cryoglobulins have been detected in nine cases (overall incidence 12.8 percent). The diagnoses corresponding to these patients were as follows: systemic lupus erythematosus in three cases, dermatopolymyositis in three cases, Sjögren's syndrome in two cases, and Wegener's granulomatosis in one case. Cryoglobulins could not be demonstrated in patients with rheumatoid artritis, sclerodermia, periarteritis nodosa, cutaneous vasculitis, Reiter's syndrome, ankylosing spondilitis and acute articular rheumatism. Among patients with systemic lupus erythematosus a good correlation has been observed between the presence of serum cryoglobulins, the activity and severity of the diseases and the decrease of serum complement levels.

Blood Protein Electrophoresis↗