Vascular function and brain-derived neurotrophic factor: The functional capacity factor

Area of Science:

• Neuroscience
• Cardiovascular Physiology
• Exercise Science

Background:

• Brain-derived neurotrophic factor (BDNF) is crucial for cognitive function.
• Understanding the relationship between BDNF, physical capacity, and vascular health is important for maintaining overall well-being.

Purpose of the Study:

• To investigate the association between serum BDNF levels, functional capacity (FC), and vascular function in healthy young adults.
• To determine if BDNF mediates the relationship between FC and vascular health.

Main Methods:

• 181 healthy young adults participated in the study.
• Serum BDNF levels were measured using ELISA.
• Functional capacity was assessed via the 6-minute walk distance (6MWD) test.
• Vascular function was evaluated using strain-gauge plethysmography to measure forearm blood flow and vascular resistance.

Main Results:

• The 6-minute walk distance (6MWD) showed significant correlations with BDNF levels (r=0.3), forearm blood inflow (r=0.5), and vascular resistance (r=-0.4).
• Participants with higher 6MWD exhibited greater BDNF and blood inflow, and lower vascular resistance.
• Higher serum BDNF levels were associated with improved vascular function, including greater forearm blood inflow and lower vascular resistance.

Conclusions:

• Serum BDNF levels are positively associated with functional capacity and vascular function in young adults.
• Enhanced vascular function in individuals with greater functional capacity may be partly mediated by elevated serum BDNF levels.