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The Effect of Mindfulness-Based Stress Reduction (MBSR) on Depression, Cognition, and Immunity in Mild Cognitive Impairment: A Pilot Feasibility Study

Rafał Marciniak, Rastislav Sumec, M. Vyhnálek, K. Bendíčková, Petra Lázničková, G. Forte, Andrej Jeleník, Veronika Římalová, J. Frič, Jakub Hort, Katerina Sheardova

Clinical Interventions in Aging August 1, 2020 DOI: 10.2147/cia.s249196 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Peer reviewed
Sample size 28
Population People with mild cognitive impairment (MCI)
Interventions Mindfulness-based stress reduction (MBSR) Cognitive training
Duration 8-week intervention, 6-month follow-up
Topics Depression Meditation
Key findings MBSR reduced depressive symptoms at both post-intervention and 6-month follow-up and improved psychomotor speed at post-intervention but not at follow-up, with detectable immunological changes.

Abstract

Background: Mindfulness-based programs have shown a promising effect on several health factors associated with increased risk of dementia and the conversion from mild cognitive impairment (MCI) to dementia such as depression, stress, cognitive decline, immune system and brain structural and functional changes. Studies on mindfulness in MCI subjects are sparse and frequently lack control intervention groups.

Objective: To determine the feasibility and the effect of mindfulness-based stress reduction (MBSR) practice on depression, cognition and immunity in MCI compared to cognitive training.

Methods: Twenty-eight MCI subjects were randomly assigned to two groups. MBSR group underwent 8-week MBSR program. Control group underwent 8-week cognitive training. Their cognitive and immunological profiles and level of depressive symptoms were examined at baseline, after each 8-week intervention (visit 2, V2) and six months after each intervention (visit 3, V3). MBSR participants completed feasibility questionnaire at V2.

Results: Twenty MCI patients completed the study (MBSR group n=12, control group n=8). MBSR group showed significant reduction in depressive symptoms at both V2 (p=0.03) and V3 (p=0.0461) compared to the baseline. There was a minimal effect on cognition – a group comparison analysis showed better psychomotor speed in the MBSR group compared to the control group at V2 (p=0.0493) but not at V3. There was a detectable change in immunological profiles in both groups, more pronounced in the MBSR group. Participants checked only positive/neutral answers concerning the attractivity/length of MBSR intervention. More severe cognitive decline (PVLT≤36) was associated with the lower adherence to home practice.

Conclusion: MBSR is well-accepted potentially promising intervention with positive effect on cognition, depressive symptoms and immunological profile.

Comparable studies

Other randomized controlled trials on depression, most cited first.

Study Year Design Participants
A Randomized Trial of an N-methyl-D-aspartate Antagonist in Treatment-Resistant Major Depression Subjects with DSM-IV major depression (treatment resistant) 2006 Randomized, placebo-controlled, double-blind crossover study n = 18
Prevention of relapse/recurrence in major depression by mindfulness-based cognitive therapy. Recovered recurrently depressed patients 2000 Randomized controlled trial n = 145
Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial Cancer patients with life-threatening diagnoses and symptoms of depression and/or anxiety 2016 Randomized controlled trial n = 51
Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: a randomized controlled trial Patients with cancer-related anxiety and depression 2016 Double-blind, placebo-controlled, crossover trial n = 29
Mindfulness-Based Cognitive Therapy for Depression: Replication and Exploration of Differential Relapse Prevention Effects. Recovered recurrently depressed patients 2004 Randomized controlled trial n = 73

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