Vascular Function Is Improved After an Environmental Enrichment Program: The Train the Brain-Mind the Vessel Study.

Area of Science:

• Neuroscience
• Cardiovascular Medicine
• Gerontology

Background:

• Mild cognitive impairment (MCI) is associated with cognitive decay and potential vascular dysfunction.
• Environmental enrichment strategies may mitigate cognitive decline by improving vascular health.

Purpose of the Study:

• To evaluate the impact of a 7-month multidomain training program (cognitive, social, physical) on cognitive and vascular functions in patients with MCI.
• To assess changes in endothelial function, progenitor cells, and arterial stiffness.

Main Methods:

• A single-center, randomized trial involving 113 MCI patients (65-89 years) assigned to multidomain training or usual care.
• Vascular assessments included flow-mediated dilation, pulse wave velocity, carotid distensibility, and CD34+ cell counts.
• Neuropsychological tests were administered at baseline and study completion.

Main Results:

• The training group showed significant improvements in cognitive function (Alzheimer's Disease Assessment Scale cognitive score) and flow-mediated dilation.
• Multidomain training preserved carotid distensibility and increased circulating hematopoietic CD34+ cells.
• Hypertension was identified as a predictor of cognitive improvement following training.

Conclusions:

• A multidomain training program effectively slows cognitive decline in MCI patients, especially those with hypertension.
• The observed cognitive benefits are associated with improvements in endothelial function and progenitor cell mobilization.
• This intervention offers a promising strategy for managing MCI by targeting both cognitive and vascular health.