During neurogenesis and in early brain development, ectonucleotidases often downregulate purinergic signalling.

在神经发生和早期大脑发育过程中，外切核苷酸酶通常下调嘌呤能信号传导。

But the effects of neurogenesis on mood are murkier.

但神经发生对情绪的影响则不明确。

This also decreased neurogenesis in the hippocampus.

这样之后，海马体的神经形成也减少了。

More and more subjects pay attention to neurogenesis.

神经元再生已受到越来越多学科的重视。

Perhaps, much neurogenesis has occurred in their hippocampi.

也许，在他们的海马区存在大量的神经发生。