Abstract

Objectives: To determine the relationship of antibodies to extractable nucleus antigens and connective tissue diseases identified by Immunoblot in a hospital in Lima, Peru. Material and methods: Study of the observational type, basic sciences, analytical and trans-versal, carried out in the Immunology service of the national Hospital Archbishop Loayza between January 2018 and June 2018. We analyzed 291 clinical histories of patients with connective tissue disease and for the detection of antibodies to the extractable antigens of the nucleus the method of Immunoblot was employed. Results: The frequency of the antibodies against extractable nuclear antigens in patients with connective tissue disease identified by Immunoblot was 789 (100%). It was demonstrated that there is significant relationship p < 0.05 of Anti-histones (X2 = 64.19; p = 0,000), an-ti-nucleosomas (X2 = 71,16; p = 0,000), anti-dsDNA (X2 = 71,44; p = 0,000), anti-SM (X2 = 10,08; p = 0,003) and Lupus Systemic erythematosus with Pearson Chi-square test. It was demons-trated that there is significant relationship p < 0.05 of the Anti-SSA (X2 = 61,33; p = 0.001), anti-SSB (x2 = 51,00; p = 0.001), anti-Ro 52 (X2 = 62,60; p = 0,000) and Sjogren’s syndrome with Pearson Chi-square test. It was demonstrated that there is significant relationship p < 0.05 of Anti-CENP B (p = 0.001) and calcinosis, Raynaud’s phenomenon, esophageal dysmotility, sclerodactyly and Telangiectasia (CREST) with exact Fisher statistician. Conclusions: There is a relationship of antibodies to extractable nucleus antigens and systemic lupus erythematosus, Sjogren’s syndrome, mixed connective tissue disease, calcinosis, Raynaud’s phenomenon, esophageal dysmotility, sclerodactyly and Telangiectasias (CREST), Scleroderma and Polymyositis.

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