Clinical and metabolic response to probiotic administration in people with Parkinson's disease: A randomized, double-blind, placebo-controlled trial

• Published in: Clinical nutrition (Edinburgh, Scotland) Vol. 38; no. 3; pp. 1031 - 1035
• Main Authors: Tamtaji, Omid Reza, Taghizadeh, Mohsen, Daneshvar Kakhaki, Reza, Kouchaki, Ebrahim, Bahmani, Fereshteh, Borzabadi, Shokoofeh, Oryan, Shahrbanoo, Mafi, Alireza, Asemi, Zatollah
• Format: Journal Article
• Language: English
• Published: England 01.06.2019
• Subjects: Aged; Aged, 80 and over; biochemical pathways; C-reactive protein; Cholesterol - blood; clinical trials; Double-Blind Method; glutathione; Humans; insulin; insulin resistance; malondialdehyde; Middle Aged; Oxidative Stress - drug effects; Parkinson disease; Parkinson Disease - blood; Parkinson Disease - diet therapy; Parkinson Disease - metabolism; placebos; probiotics; Probiotics - administration & dosage; Probiotics - pharmacology; Probiotics - therapeutic use; Probiotic; Oxidative stress; Inflammation; Parkinson's disease; Movement disorders
• ISSN: 1532-1983; 0261-5614; 1532-1983
• DOI: 10.1016/j.clnu.2018.05.018

The investigation was done to assess the impacts of probiotic supplementation on movement and metabolic parameters in individuals with Parkinson's disease (PD). The study is randomized, double-blind, placebo-controlled clinical trial, which was done in sixty people with PD. Individuals were randomly divided into two groups in order to take either 8 × 10  CFU/day probiotic or placebo (n = 30 each group) that lasted 12 weeks. The Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) was recorded at pre- and post-intervention. Compared with the placebo, consuming probiotic decreased MDS-UPDRS (-4.8 ± 12.5 vs. +3.8 ± 13.0, P = 0.01). Probiotic supplementation also reduced high-sensitivity C-reactive protein (-1.6 ± 2.5 vs. +0.1 ± 0.3 mg/L, P < 0.001) and malondialdehyde (-0.2 ± 0.3 vs. +0.1 ± 0.3 μmol/L, P = 0.006), and enhanced glutathione levels (+40.1 ± 81.5 vs. -12.1 ± 41.7 μmol/L, P = 0.03) in comparison with the placebo. Additionally, probiotic consumption resulted in a statistically significant reduction in insulin levels (-2.1 ± 3.4 vs. +1.5 ± 5.1 μIU/mL, P = 0.002) and insulin resistance (-0.5 ± 0.9 vs. +0.4 ± 1.2, P = 0.002), and a statistically significant rise in insulin sensitivity (+0.01 ± 0.02 vs. -0.006 ± 0.02, P = 0.01) in comparison with the placebo. Probiotic intake had no any significant impact on other metabolic profiles. Our study evidenced that 12 weeks of probiotic consumption by individuals with PD had useful impacts on MDS-UPDRS and few metabolic profiles. Registered under ClinicalTrials.gov Identifier no. http://www.irct.ir: IRCT2017082434497N4.