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Microbiota and oxidant-antioxidant balance in systemic lupus erythematosus.
Nutrición Hospitalaria : Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral 2017 July 29
BACKGROUND: Systemic lupus erythematosus (SLE) is a chronic infl ammatory disease of autoimmune nature, in which oxidative stress is implicated.
AIM: Compare the concentrations of dietary and blood antioxidants, as well as gut microbiota, with serum malondialdehyde (MDA) and C reactive protein (CRP) in 21 subjects suffering from non-active systemic lupus erythematosus (SLE) and 21 age and gender-matched controls.
METHODS: General biochemical parameters and CRP were determined by enzymatic methods: copper, zinc and selenium by inductively coupled plasma mass spectrometry (ICP-MS), MDA and total antioxidant capacity (TAC) by spectrophotometric methods, gut microbiota by metagenomic analyses and dietary intake by means of food frequency questionnaire.
RESULTS: No significant differences were found in diet between lupus patients and the control group, with the exception of trans fatty acids intake, which was higher in patients. In addition, higher concentration of serum copper and lower of zinc in SLE were found. Serum copper was positively associated with CRP and also, this protein with the proportion of Lentisphaerae, ProteobacteriaandVerrucomicrobiain feces. Moreover, MDA levels displayed inverse correlations with the Cyanobacteriaand Firmicutesgroups, while Actinobacteria showed a positive association. The lupus subjects with presence of anti-SSA/Ro were related to higher levels of serum zinc.
CONCLUSION: These results could be useful in the future to go deeper into the understanding of this complex disease.
AIM: Compare the concentrations of dietary and blood antioxidants, as well as gut microbiota, with serum malondialdehyde (MDA) and C reactive protein (CRP) in 21 subjects suffering from non-active systemic lupus erythematosus (SLE) and 21 age and gender-matched controls.
METHODS: General biochemical parameters and CRP were determined by enzymatic methods: copper, zinc and selenium by inductively coupled plasma mass spectrometry (ICP-MS), MDA and total antioxidant capacity (TAC) by spectrophotometric methods, gut microbiota by metagenomic analyses and dietary intake by means of food frequency questionnaire.
RESULTS: No significant differences were found in diet between lupus patients and the control group, with the exception of trans fatty acids intake, which was higher in patients. In addition, higher concentration of serum copper and lower of zinc in SLE were found. Serum copper was positively associated with CRP and also, this protein with the proportion of Lentisphaerae, ProteobacteriaandVerrucomicrobiain feces. Moreover, MDA levels displayed inverse correlations with the Cyanobacteriaand Firmicutesgroups, while Actinobacteria showed a positive association. The lupus subjects with presence of anti-SSA/Ro were related to higher levels of serum zinc.
CONCLUSION: These results could be useful in the future to go deeper into the understanding of this complex disease.
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