LAM action found that that Vit D protein is 2/3 lower in LAM patients.
So they also measured Vit D levels in blood and found they were lower than normal.
All that improved with Rapamycin
I must say in my case my Vegf-d ( LAM bio marker) is lower since I have started on Vit D and I am not on Rapamycin.
So they looked at other lung diseases patients and found that vit D was generally lower than the norm.
So check your Vit D levels, take your vitamin and enjoy the sunshine!
Link: lamaction.org