Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases · 2019
ASCA (Anti-Saccharomyces cerevisiae Antibody) in Patients With Scleroderma.
СтатьяНазвание и аннотация: Перевод в очереди
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Fedrigo Aiessa, Skare Thelma L, Bortoluzzi André Luiz, Nisihara Renato
Аннотация
OBJECTIVES: The majority of scleroderma (SSc) patients present gastrointestinal involvement. Motility is usually compromised but few studies address permeability changes in the intestinal wall. ASCA (anti-Saccharomyces cerevisiae antibodies) positivity is associated with increased intestinal permeability. In this study we aimed to investigate ASCA positivity in SSc patients and its association with clinical, serological and epidemiological data.
METHODS: Seventy-four SSc patients and 57 healthy controls were studied for ASCA (IgG and IgA) positivity by ELISA. ASCA positivity was associated with demographic, clinical severity index (by Medsger score) and serological data in SSc patients.
RESULTS: ASCA-IgG was positive in 32/74 (43.2%) patients of the SSc group and 1/57 (1.7%) of controls (p < 0.0001); ASCA-IgA was positive in 12/74 (16.2%) of the SSc group and 3/57 (5.2%) of controls (p = 0.05). In univariate analysis, ASCA-IgG presence was associated positively with African ethnic background (p < 0.001) and negatively associated with anticentromere antibodies (p = 0.013); ASCA-IgA had a negative association with Medsger score (p = 0.05). In multivariate analysis ASCA-IgG associated independently only with African ethnic background.
CONCLUSION: Positivity for ASCA-IgG and ASCA-IgA is higher among scleroderma patients than controls. African descendants have more positivity for ASCA-IgG. ASCA-IgA is less frequent in patients with a more severe disease.
METHODS: Seventy-four SSc patients and 57 healthy controls were studied for ASCA (IgG and IgA) positivity by ELISA. ASCA positivity was associated with demographic, clinical severity index (by Medsger score) and serological data in SSc patients.
RESULTS: ASCA-IgG was positive in 32/74 (43.2%) patients of the SSc group and 1/57 (1.7%) of controls (p < 0.0001); ASCA-IgA was positive in 12/74 (16.2%) of the SSc group and 3/57 (5.2%) of controls (p = 0.05). In univariate analysis, ASCA-IgG presence was associated positively with African ethnic background (p < 0.001) and negatively associated with anticentromere antibodies (p = 0.013); ASCA-IgA had a negative association with Medsger score (p = 0.05). In multivariate analysis ASCA-IgG associated independently only with African ethnic background.
CONCLUSION: Positivity for ASCA-IgG and ASCA-IgA is higher among scleroderma patients than controls. African descendants have more positivity for ASCA-IgG. ASCA-IgA is less frequent in patients with a more severe disease.