What does Brain-Derived Neurotrophic Factor (BDNF) support?

Brain-Derived Neurotrophic Factor (BDNF) plays a significant role in the growth, development, and survival of neurons in the brain. This neurotrophic factor is essential for the maintenance of existing neurons and the formation of new ones, which is crucial for neuroplasticity—the brain's ability to adapt and reorganize itself in response to learning and experience. BDNF influences various aspects of neuronal health, including promoting the survival of neurons during development, enhancing synaptic plasticity, and stimulating the growth of dendrites and axons.

While the other options mention important functions related to neuronal activity, they do not precisely describe the primary role of BDNF. The production of neurotransmitters, the movement of signals through synapses, and the regulation of blood flow in neurons are all vital processes, but they are not the direct responsibilities of BDNF. Instead, BDNF is mainly associated with supporting neuronal growth and survival, which is foundational for overall brain function and health.