Abstract
This study evaluated the effects of probiotic and selenium co-supplementation on clinical and metabolic symptoms in patients with chronic schizophrenia. A randomized, double-blind, placebo-controlled trial was conducted among 60 people with chronic schizophrenia to receive either 8 × 109 CFU/day probiotic plus 200 μg/day selenium (n = 30) or placebo (n = 30) for 12 weeks. Probiotic and selenium co-supplementation resulted in a significant improvement in the general Positive and Negative Syndrome Scale (PANSS) score (β − 1.29; 95% CI, − 2.48, − 0.10; P = 0.03) compared with the placebo. Compared with the placebo, probiotic and selenium co-supplementation resulted in a significant elevation in total antioxidant capacity (β 91.09 mmol/L; 95% CI, 35.89, 146.30; P = 0.002) and total glutathione (β 96.50 μmol/L; 95% CI, 26.13, 166.87; P = 0.008) and a significant reduction in high-sensitivity C-reactive protein levels (β − 1.44 mg/L; 95% CI, − 2.22, − 0.66; P = 0.001). Additionally, co-supplementation significantly decreased fasting glucose (β − 7.40 mg/dL; 95% CI, − 10.15, − 4.64; P < 0.001), insulin levels (β − 1.46 μIU/mL; 95% CI, − 2.35, − 0.57; P = 0.002), and homeostasis model of assessment-insulin resistance (β − 0.51; 95% CI, − 0.72, − 0.29; P < 0.001) and a significant increase in quantitative insulin sensitivity check index (β 0.01; 95% CI, 0.006, 0.01; P < 0.001) compared with the placebo. Probiotic and selenium co-supplementation for 12 weeks to patients with chronic schizophrenia had beneficial effects on the general PANSS score and some metabolic profiles. http://www.irct.ir, identifier IRCT20170513033941N41
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Data availability
The primary data for this study is available from the authors on direct request.
Abbreviations
- BPRS:
-
Brief Psychiatric Rating Scale
- FPG:
-
Fasting plasma glucose
- GSH:
-
Total glutathione
- HOMA-IR:
-
Homeostasis model of assessment-estimated insulin resistance
- hs-CRP:
-
High-sensitivity C-reactive protein
- MDA:
-
Malondialdehyde
- PANSS:
-
Positive and Negative Syndrome Scale
- QUICKI:
-
Quantitative insulin sensitivity check index
- TAC:
-
Total antioxidant capacity.
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Acknowledgments
We are thankful to all patients who participated in this project.
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Arak University of Medical Sciences (AUMS) funds this study with a role in the design of the trial and collection, analysis, and interpretation of data and in writing the manuscript.
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HJ and AG contributed in conception, design, statistical analysis, and drafting of the manuscript. HJ contributed in conception and data collection. The authors have read and approved the manuscript.
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Jamilian, H., Ghaderi, A. The Effects of Probiotic and Selenium Co-supplementation on Clinical and Metabolic Scales in Chronic Schizophrenia: a Randomized, Double-blind, Placebo-Controlled Trial. Biol Trace Elem Res 199, 4430–4438 (2021). https://doi.org/10.1007/s12011-020-02572-3
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DOI: https://doi.org/10.1007/s12011-020-02572-3