3 ms·
I thought it was difficult for many things to pass through the blood brain barrier. How are these particles making it through?
by giantg2 2y ago
I thought it was difficult for many things to pass through the blood brain barrier. How are these particles making it through?
- MrVandemar 2y agoMy uninformed guess is the blood brain barrier is an evolved barrier that's very good at not letting things found in nature through, like various compounds, viruses, bacteria etc. We have no evolved defence against compounds and materials developed in the last century.
- notamy 2y agohttps://news.ycombinator.com/item?id=41316195 https://news.ycombinator.com/item?id=41316195
- giantg2 2y agoIs it just that any nanometer size particles make ot through, or is it just for select particles like plastic? Like if nanometer particles make it through, why do many drugs get blocked - are they just larger than a few nanometers (seems unlikely, but I don't know)?