https://pubmed.ncbi.nlm.nih.gov/17474862/ (Paywalled, abstract only)

https://zero.sci-hub.se/3428/d8f5b3d4ccd98f680daab1f55150cdc1/kwak2006.pdf (full document)

EDIT:

The extract mentioned is from the following species:

https://en.m.wikipedia.org/wiki/Pinus_densiflora

[known as: Japanese red pine, the Japanese pine, or Korean red pine]

EDIT 2:

The bark of the same species contains neuroprotective compounds:

https://www.jmb.or.kr/journal/view.html?doi=10.4014/jmb.1801.01053

“Taken together, these results suggest that [Korean red pine bark extract] and its constituent antioxidative phenolics are potent neuroprotective agents that can maintain cell viability under oxidative stress and inhibit cholinesterase activity.”