[Vegetarianism, a new lifestyle in Québec].
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Adolescent↗
Biomedical subjects
A Beaulieu
Publications and source records attributed to A Beaulieu.
IgG antibodies to double-stranded DNA in systemic lupus erythematosus sera. Independent variation of complement fixing activity and total antibody content.
Antibodies to double-stranded deoxyribonucleic acid were studied using the kinetoplast of Crithidia luciliae. Titers were determined separately by conventional immunofluorescence and the complement fluorescent technique, and results by the two methods were compared. Complement fixing activity varied independently of antibody content in whole serum and in IgG fractions. The well established correlation of complement fixing activity of this antibody with activity of lupus nephritis appears related, therefore, to qualitative rather than solely quantitative differences. This finding has important implications for the clinical assessment of patients with lupus, and investigations on the relationship of anti-DNA antibodies to lupus nephritis.
Antibodies↗
Operationally defined single- and double-stranded DNA antigens in the Farr assay: diagnostic value.
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Antibodies↗
The confused patient: psychological responses in critical care units.
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Alcohol Withdrawal Delirium↗
[Scleroderma: what is it].
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Fibroblasts↗
Complement fixing antibodies to DS-DNA in systemic lupus erythematosus: a study using the immunofluorescent Crithidia luciliae method.
Crithidia luciliae, a hemoflagellate, was used in an immunofluorescent procedure to assay for antibodies to ds-DNA and their capacity to fix complement. Positive reactions with this method were limited to systemic lupus erythematosus patients, and sensitivity was comparable to the DNA binding assay. Complement fixing activity of antibodies to ds-DNA in 45 sera was determined using kinetoplast ds-DNA of Crithidia luciliae and an antiserum to C3. Complement fixing antibodies to ds-DNA were found in nearly all patients with documented active renal involvement and absent in nearly all patients with no, or inactive renal involvement.
Antibodies↗