This episode I dive into studies and discuss what we can do in our kitchens to reduce collagen destruction. This is helpful for everyone from natural aging, to those with connective tissue issues, but focused gems for Marfan syndrome patients. Opening: Why Collagen Protection Matters [00:00] Marfan Syndrome, Fibrillin-1, TGF-β, and MMPs [03:52] Resveratrol and Curcumin [08:24] Green Tea, Crocin, and Saffron [15:25] Food Sources, Omega-3s, and Collagen Cross-Linking [18:27] NAC, Melatonin, and Quercetin [24:18] Berberine, Vitamin D, Apigenin, and Genistein [30:00] Putting the Evidence in Perspective [32:28] Recovery, Intuition, and Living With Marfan Syndrome [36:28] Closing and Resources [37:59] Resources and references for readers The studies below are preclinical unless specifically marked as human research. Neither crocin nor resveratrol has been proven to prevent aortic enlargement or dissection in people with Marfan syndrome. Qi F, Liu Y, Zhang K, et al. Artificial Intelligence Uncovers Natural MMP Inhibitor Crocin as a Potential Treatment of Thoracic Aortic Aneurysm and Dissection. Frontiers in Cardiovascular Medicine. 2022;9:871486.Read the full study | DOI What it found: In a chemically induced mouse model, injected crocin inhibited overall MMP activity, appeared to bind directly to MMP‑2, reduced elastin degradation, slowed aortic dilation and lowered aneurysm, dissection and rupture rates. Important limitation: These were normal mice given BAPN to chemically weaken the aorta—not mice with an Fbn1 mutation. Crocin was injected intraperitoneally at 50 or 80 mg/kg, not given as oral saffron. Ren W, Liu Y, Wang X, et al. β-Aminopropionitrile monofumarate induces thoracic aortic dissection in C57BL/6 mice. Scientific Reports. 2016;6:28149.Read the full study | DOI Why it matters: This paper describes the BAPN model used to create experimental thoracic aortic disease. BAPN inhibits lysyl oxidase, interfering with the normal cross-linking and strengthening of collagen and elastin. Hibender S, Franken R, van Roomen C, et al. Resveratrol Inhibits Aortic Root Dilatation in the Fbn1 C1039G/+ Marfan Mouse Model. Arteriosclerosis, Thrombosis, and Vascular Biology. 2016;36(8):1618–1626.Read the full study | PubMed | DOI What it found: Resveratrol reduced aortic-root dilation and elastin breaks in genetically modified Marfan mice. It also improved vascular smooth-muscle-cell survival and reduced aneurysm-associated microRNA‑29b. Important clarification: In this particular Marfan study, resveratrol did not significantly reduce SMAD2 or ERK1/2 activation. Its protection appeared to involve elastin preservation, smooth-muscle-cell survival, NF‑κB-related signaling and reduced microRNA‑29b—not demonstrated suppression of TGF‑β signaling. Chaudhry SS, Cain SA, Morgan A, Dallas SL, Shuttleworth CA, Kielty CM. Fibrillin‑1 regulates the bioavailability of TGFβ1. Journal of Cell Biology. 2007;176(3):355–367.PubMed | DOI Why it matters: This foundational study explains how fibrillin‑1 microfibrils help regulate the extracellular storage and bioavailability of latent TGF‑β1. Abnormal fibrillin can disrupt this regulation. Matt P, Schoenhoff F, Habashi J, et al.; GenTAC Consortium. Circulating transforming growth factor-beta in Marfan syndrome. Circulation. 2009;120(6):526–532.PubMed | DOI Human study: Circulating TGF‑β levels were elevated in participants with Marfan syndrome and associated with clinical characteristics. However, circulating total TGF‑β is not identical to biologically active TGF‑β within the aortic wall. Linus Pauling Institute, Oregon State University. Resveratrol: Food Sources, Metabolism, Safety and Research.Read the resveratrol overview Food sources discussed: Red and purple grape skins, grape juice, peanuts, cocoa, blueberries, bilberries and cranberries. Concentrated supplements are commonly derived from Japanese knotweed root, Reynoutria japonica—also labeled Polygonum cuspidatum or Hu Zhang.
