Results: NGF-IR neurons were presented in the intracardiac ganglia of these groups, and the bodies of most ganglion cells were round or oval, including large, middle, and small type cells.

• 结果：各组大鼠心内神经节均存在NGF阳性神经元，该类神经细胞胞体多数呈圆形或椭圆形，大、中、小型细胞均有发现。