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1.
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo ; 58(6): 315-319, 2003. tab, graf
Article in English | LILACS | ID: lil-354165

ABSTRACT

OBJECTIVE:To examine the presence of serum antinuclear autoantibodies in a healthy population. METHODS: Serum of 500 normal blood donors between 18 and 60 years of age were tested for the presence of autoantibodies. Antinuclear antibodies were detected by indirect immunofluorescence technique using HEp-2 epithelial cells as the substrate. The presence of dnaN was detected by indirect immunofluorescence technique using Critidia lucillae as the substrate. Anti-SSA (RO), anti-SSB (LA), anti-Sm, and anti-RNP were determined by double radial immunodiffusion. RESULTS: In the evaluation of the presence of serum antibodies, antinuclear antibodies were detected in 22.6 percent of the sera. The presence of other antibodies was not significant. The majority of the titers were 1:40. CONCLUSION: The presence of autoantibodies is not necessarily pathologic and has to be related to the age group, gender, and clinical condition of the patient


Subject(s)
Humans , Antibodies, Antinuclear , Autoantibodies , Antibodies, Antinuclear/blood , Autoantibodies/blood , Blood Donors , Fluorescent Antibody Technique, Indirect , Immunodiffusion , Prevalence
2.
An. bras. dermatol ; 76(5): 551-560, set.-out. 2001. ilus
Article in Portuguese, English | LILACS | ID: lil-344174

ABSTRACT

O objetivo deste estudo é mostrar as vantagens da técnica de imunomapeamento no diagnóstico das epidermólises bolhosas distróficas. Dos 37 doentes estudados realizou-se 28 exames anatomopatológicos, 23 exames de microscopia eletrônica de transmissão e 37 imunomapeamentos. Dos exames histopatológicos 3 foram compatíveis com epidermólise bolhosa simples (EBS) e 25 com os grupos das epidermólises bolhosas juncionais (EBJ) e das epidermólises bolhosas distróficas (EBD). Dos 19 exames de microscopia eletrônica de transmissão representativos, 2 foram compatíveis com EBS, 1 com EBJ e 16 com EBD. Nos imunomapeamentos 3 foram compatíveis com EBS, 3 com EBJ, 14 com EBD dominante (EBBD) e 17 com EBD recessiva (EBDR). O imunomapeamento pôde fazer a diferenciação dos dois grupos das EBD de forma mais fácil e de custo inferior ao da MET. Sabe-se que essa diferenciação pode ser feita pela MET, no entanto exige avaliação morfológica e quantificação das fibrilas de ancoragem, tornando esta técnica difícil, demorada e sujeita e erros por trabalhar com área restrita da zona da membrana basal


Subject(s)
Humans , Epidermolysis Bullosa Dystrophica
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