Reishi is known to down regulate nf-kappa b.
From the studies below... looks like the narrowing of the aorta could be caused by up regulation of nf-kappa b. So the mushroom reishi could help.
Studies I found:
Perinatal inhibition of NF-kappaB has long-term antihypertensive effects in spontaneously hypertensive rats
http://journals.lww.com/jhypertension/Abstract/2011/06000/Perinatal_inhibition_of_NF_kappaB_has_long_term.20.aspx
The association between Type A behavior pattern and TLR4/NF-κB/pro-inflammatory cytokines signaling in young persons
http://www.internationaljournalofcardiology.com/article/S0167-5273(11)01696-2/abstract
Angiotensin II is associated with activation of NF-κB-mediated genes and downregulation of PPARs
http://physiolgenomics.physiology.org/content/11/1/21
Hypertension Induced by Aortic Coarctation Above the Renal Arteries Is Associated With Immune Cell Infiltration of the Kidneys
http://ajh.oxfordjournals.org/content/18/11/1449.full.pdf
Simvastatin prevents hypertrophy and keeps cardiac function in myocardium of rabbit with overlord by promoting PPAR gamma and inhibiting NF-kappa B
http://en.cnki.com.cn/Article_en/CJFDTOTAL-YAOL201001033.htm
Mechanisms of Disease: oxidative stress and inflammation in the pathogenesis of hypertension
http://www.nature.com/nrneph/journal/v2/n10/full/ncpneph0283.html
Involvement of Rab28 in NF-κB Nuclear Transport in Endothelial Cells
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0056076
HMG-CoA Reductase Inhibitors Regulate Inflammatory Transcription Factors in Human Endothelial and Vascular Smooth Muscle Cells
http://atvb.ahajournals.org/content/23/1/58.figures-only?cited-by=yes&legid=atvbaha;23/1/58
Do Multiple Nuclear Factor Kappa B Activation Mechanisms Explain Its Varied Effects in the Heart?
http://www.ochsnerjournal.org/doi/abs/10.1043/1524-5012-13.1.157