Effects of the Mindfulness-Based Blood Pressure Reduction (MB-BP) program on depression and neural structural...

Area of Science:

• Neuroscience
• Cardiovascular Health
• Psychology

Background:

• Hypertension affects 46% of US adults, with poor control rates, necessitating alternative treatments.
• Pharmacological interventions for hypertension face challenges in long-term efficacy and side effects.
• The Mindfulness-Based Blood Pressure Reduction (MB-BP) program shows promise but its neural underpinnings are unclear.

Purpose of the Study:

• To identify structural neural correlates of the MB-BP intervention using diffusion tensor magnetic resonance imaging (DTI).
• To assess the relationship between neural changes and clinical outcomes like interoception and depression.

Main Methods:

• Diffusion tensor magnetic resonance imaging (DTI) was used to analyze white matter tracts.
• A subset of participants from a randomized controlled trial (14 MB-BP, 22 controls) were included.
• Analyses focused on group differences in neural structural connectivity.

Main Results:

• MB-BP participants showed increased interoception and decreased depressive symptoms compared to controls.
• Significant differences in white matter tracts within the limbic system were observed.
• Neural structural connectivity changes correlated with interoception and depression scores.

Conclusions:

• MB-BP intervention leads to alterations in brain structural connectivity.
• These neural changes may mediate improvements in interoceptive awareness and depression.
• MB-BP represents a potential complementary approach for hypertension management.