鉴于这些不足，研究者们已经在研究一种小型分子产物，其具有神经营养因子的功能，但是没有它的缺点。

In light of those disadvantages, researchers have been investigating a group of small molecular products that can act as neurotrophins without most of the negative aspects.

youdao

神经营养因子是一种蛋白质，能够促进神经元生长，但是它也有缺点，包括低稳定性和穿透水平不足。

Neurotrophins are a type of protein that promote the development of neurons, but which come with some drawbacks, including low stability and low penetration levels.

youdao