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  • Title: The detergent fraction is effective in the detection of IgG anti-Strongyloides stercoralis in serum samples from immunocompromised individuals.
    Author: da Silva H, de Carvalho CJ, Levenhagen MA, Costa-Cruz JM.
    Journal: Parasitol Int; 2014 Dec; 63(6):790-3. PubMed ID: 25091831.
    Abstract:
    Human strongyloidiasis is an intestinal helminthiasis that can be fatal particularly in cases of immunosuppression. The aim of this study is to assess the diagnostic accuracy of the detergent fraction (D), purified from total saline extract (SE) of Strongyloides venezuelensis, in the detection of anti-Strongyloides stercoralis IgG antibodies in serum samples from individuals coming from endemic areas for strongyloidiasis and presenting immunocompromised conditions: human immunodeficiency virus (HIV(+)), diabetes mellitus type 2, cancer, tuberculosis and alcoholism. Serum samples from 93 individuals were analyzed by ELISA, as follows: Group 1: 30 immunocompromised individuals with strongyloidiasis; Group 2: 33 immunocompromised individuals without strongyloidiasis and Group 3: 30 healthy individuals. The total saline extract (SE) and detergent fraction (D) showed a sensitivity of 73.33 and 83.33%, and specificity of 82.15 and 86.36%, respectively. The detergent fraction was effective to detect anti-S. stercoralis IgG antibodies in immunocompromised individuals with strongyloidiasis and may be applied as an important tool in the immunodiagnosis of human strongyloidiasis related to immunosuppression.
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