Degeneration of spinal motor neurons in adults may be due to a lack of ____________ factor.
A)brain-derived neurotrophic
B)neurotrophin-3
C)nerve growth
D)glial-derived neurotrophic

Question

Quizplus · Accepted Answer

The degeneration of spinal motor neurons in adults is commonly associated with a deficiency of glial-derived neurotrophic factor (GDNF). GDNF is a protein that promotes the survival and regeneration of neurons in the nervous system, including spinal motor neurons. Research has shown that delivering GDNF to motor neurons can prevent their degeneration and even promote their regeneration in some cases. Brain-derived neurotrophic factor (BDNF), neurotrophin-3, and nerve growth factor are also involved in the survival and growth of neurons, but they are not specifically associated with the degeneration of spinal motor neurons in adults.

Degeneration of Spinal Motor Neurons in Adults May Be Due