{"url":"https://whatshealthyandwhy.com/danshen/cardiovascular-and-liver-protection","path":"/danshen/cardiovascular-and-liver-protection","alternates":{"json":"https://whatshealthyandwhy.com/api/articles/danshen/cardiovascular-and-liver-protection.json","markdown":"https://whatshealthyandwhy.com/danshen/cardiovascular-and-liver-protection.md"},"topic":{"slug":"danshen","name":"Danshen","url":"https://whatshealthyandwhy.com/danshen"},"slug":"cardiovascular-and-liver-protection","order":1,"title":"Cardiovascular Protection and Liver Support","question":"Does danshen (red sage) really protect the heart and liver?","answer":"Danshen may help with angina, heart failure symptoms and fatty liver, but most human trials used combination formulas in Chinese clinics.","description":"How Danshen (Salvia miltiorrhiza, Red Sage) protects the heart and blood vessels through tanshinones and salvianolic acids, with evidence from clinical trials and mechanistic research","confidence":2,"confidenceNote":"Human evidence is second-hand, from a review of mostly Chinese combination-formula trials; liver data are small human studies plus animal and cell work.","evidenceSummary":{"newestStudyYear":2022},"category":{"categoryTitle":"What's Good For You","categorySlug":"good-for-you","subcategoryName":"Herbs & Spices","subcategorySlug":"herbs","url":"https://whatshealthyandwhy.com/explore/good-for-you/herbs"},"actions":["Use it only as an add-on to prescribed heart treatment, as in the heart failure trials, and clear it with your doctor first [1].","Choose a standardized extract that states whether it concentrates tanshinones or salvianolic acids; water extracts favor salvianolic acids, alcohol extracts tanshinones.","The traditional dried-root decoction is 9–15 g a day in water, usually combined with other herbs."],"cautions":["Warfarin: danshen strongly increases its blood-thinning effect and bleeding risk; do not combine without medical supervision.","It may also raise digoxin levels, add to aspirin and clopidogrel, and alter drugs processed by CYP2C9 or CYP3A4; check with a pharmacist.","Safety in pregnancy is not established."],"simpleText":"Danshen (Salvia miltiorrhiza, also called Red Sage or Dan Shen in traditional Chinese medicine) is one of the most extensively researched herbs in East Asian medicine, with a history stretching back over 2,000 years for treating heart and blood disorders. Modern pharmacology has confirmed what traditional physicians observed: Danshen contains a uniquely potent combination of active compounds — tanshinones and salvianolic acids — that protect the heart, blood vessels, and liver through multiple complementary mechanisms. [1] It is one of the most commonly prescribed herbs in Chinese cardiology clinics, and its compounds have attracted serious interest as leads for cardiovascular drug development.","mediumText":"How Danshen Works\n\nDanshen's biological activity comes from two chemically distinct families of compounds that work through different but overlapping pathways.\n\nTanshinones: Fat-Soluble Heart Protectors\n\nTanshinones are fat-soluble diterpenoids concentrated in the root. Tanshinone IIA and cryptotanshinone are the most studied. Their primary actions include:\n\n- Antioxidant protection in cardiac tissue, reducing reactive oxygen species (ROS) during ischemia (oxygen deprivation) and reperfusion (when blood flow returns, triggering a burst of oxidative damage)\n- Anti-apoptotic signaling: tanshinones inhibit the caspase cascade that triggers cardiomyocyte (heart cell) death, activating the survival kinases Akt and ERK1/2 [2]\n- Anti-inflammatory: tanshinones suppress NF-κB signaling, reducing downstream inflammatory cytokines including TNF-α, IL-1β, and IL-6\n- Anti-fibrotic: they inhibit TGF-β1, the key driver of pathological cardiac and hepatic scarring\n- Cholesterol: tanshinone IIA reduces LDL oxidation and macrophage foam cell formation — the cellular events that drive plaque buildup in arteries [3]\n\nSalvianolic Acids: Water-Soluble Vascular Protectors\n\nSalvianolic acids — particularly salvianolic acid B (Sal B) and danshensu — are among the most potent naturally occurring antioxidants identified. They act primarily in the vasculature:\n\n- Endothelial protection: Sal B shields the inner lining of blood vessels from oxidative damage and restores nitric oxide (NO) bioavailability, which is essential for blood vessel relaxation and blood pressure regulation [4]\n- Anti-platelet aggregation: danshensu inhibits thromboxane synthesis and platelet clumping, reducing clot risk without the bleeding side effects of aspirin\n- Anti-atherosclerosis: salvianolic acids reduce foam cell formation, inhibit smooth muscle cell migration into the arterial wall, and suppress the inflammatory signals that drive plaque progression [4]\n- Liver protection: salvianolic acids chelate iron and copper (reducing Fenton-reaction-driven oxidative damage), inhibit hepatic stellate cell activation (the cells that produce liver fibrosis), and support bile acid metabolism [5]\n\nLiver and Metabolic Benefits\n\nBeyond its cardiovascular actions, Danshen shows meaningful hepatoprotective activity. In non-alcoholic fatty liver disease (NAFLD) models and early clinical evidence, Danshen preparations:\n\n- Reduced liver steatosis (fat accumulation) and improved liver enzyme levels (ALT, AST)\n- Suppressed hepatic fibrosis progression through TGF-β inhibition\n- Improved lipid profiles and insulin sensitivity through PPAR-α and AMPK activation\n- Reduced oxidative stress markers in liver tissue [5]\n\nForms and Dosage\n\nDanshen is used in several forms:\n\n- Dried root decoction: 9–15 g/day in water, traditional TCM preparation, often combined with other herbs\n- Standardized extracts: capsules or tablets standardized to tanshinone IIA content or total salvianolic acid content\n- Sodium danshenate injection: an intravenous form used in Chinese hospitals for acute cardiovascular events — not available outside specialized clinical settings\n- Danshen dripping pills (Compound Danshen Dropping Pills): a pharmaceutical-grade standardized combination used in clinical trials for angina\n\nBecause the two active fractions (tanshinones and salvianolic acids) have different solubilities, water extracts deliver more salvianolic acids while ethanol/alcohol extracts capture more tanshinones. Quality supplements specify which fraction has been concentrated.\n\nCautions and Interactions\n\nDanshen has meaningful interactions that require attention:\n\n- Warfarin (Coumadin): Danshen significantly potentiates warfarin's blood-thinning effect, increasing bleeding risk. This is a clinically significant, well-documented interaction — do not combine without medical supervision.\n- Digoxin: may increase blood levels of digoxin\n- Anti-platelet drugs: additive effect with aspirin and clopidogrel\n- Liver metabolism (CYP2C9, CYP3A4): some Danshen compounds affect drug-metabolizing enzymes, potentially altering levels of various medications\n\nFor healthy individuals without these medication concerns, Danshen appears well tolerated at normal supplemental doses. Pregnancy use is not established.\n\nSee our Hawthorn Berry page for a complementary cardiovascular herb, our Astragalus page for another major TCM herb with robust evidence, and our Milk Thistle page for additional liver-protective herbs.","deepText":"Evidence Review\n\nRen et al. 2019 — Comprehensive Cardiovascular Review\n\nThis review in Frontiers in Pharmacology [1] synthesized the clinical and pharmacological evidence for Danshen across cardiovascular disease, drawing from human trials, meta-analyses, and mechanistic studies.\n\nKey cardiovascular findings:\n\nAngina: Compound Danshen Dropping Pills (CDDP), a standardized pharmaceutical formulation, has been tested against nitroglycerin and conventional cardiac therapy in multiple Chinese RCTs. Meta-analysis of these trials showed CDDP produced comparable anti-anginal efficacy with fewer adverse events (headache, flushing) than nitroglycerin. Effect size for angina episode reduction: CDDP groups typically showed 70–90% responder rates vs 60–75% in control groups.\n\nHeart failure: In adjunct trials adding Danshen to conventional heart failure treatment, the Danshen groups showed significant improvements in left ventricular ejection fraction (LVEF), reduced brain natriuretic peptide (BNP — a biomarker of cardiac stress), and better exercise tolerance scores. These trials generally ran 4–12 weeks and showed consistent benefit signals.\n\nAtherosclerosis biomarkers: In human trials, Danshen supplementation consistently reduced LDL oxidation, decreased carotid intima-media thickness (a structural marker of atherosclerosis), and lowered inflammatory markers including CRP and fibrinogen compared to control groups.\n\nThe authors note that most large trials are from Chinese clinical settings and use combination formulas, making it difficult to attribute all effects specifically to Danshen alone. The underlying mechanistic evidence is, however, robust and consistent with clinical observations.\n\nYin et al. 2013 — Cardioprotection Against Ischemia-Reperfusion Injury\n\nThis study in the European Journal of Pharmacology [2] investigated the mechanism by which danshensu (a salvianolic acid-family compound) protects heart cells during ischemia-reperfusion (I/R) injury — the sequence of events during a heart attack when blood flow stops then resumes, paradoxically causing additional damage through oxidative burst.\n\nIn H9c2 cardiomyocytes subjected to I/R injury:\n- Danshensu pretreatment significantly increased cell viability (approximately 40% improvement vs. untreated I/R cells at tested concentrations)\n- Akt phosphorylation increased significantly, activating pro-survival cellular signaling\n- ERK1/2 phosphorylation was enhanced, further suppressing apoptosis\n- When Akt inhibitors were added alongside danshensu, the protective effect was largely abolished — confirming Akt is the primary survival pathway involved\n- Cytochrome c release from mitochondria (a key apoptosis trigger) was reduced in danshensu-treated cells\n\nThe study establishes a clear cellular mechanism: danshensu activates Akt and ERK1/2 survival kinases, suppressing the apoptotic cascade in cardiac cells deprived of oxygen. This mechanism is relevant to heart attack injury prevention and post-infarction recovery.\n\nWang et al. 2011 — Salvianolic Acid vs. Tanshinone Signaling Comparison\n\nThis Journal of Ethnopharmacology study [3] addressed an important mechanistic question: Danshen's two active families (salvianolic acids and tanshinones) both protect the heart — but through the same pathways, or different ones?\n\nUsing an acute myocardial infarction model with both in vitro and in vivo components:\n\n- Salvianolic acid acted primarily through the PI3K/Akt pathway, increasing Bcl-2 (anti-apoptotic) expression and reducing Bax (pro-apoptotic) expression, while also activating the Nrf2 antioxidant defense pathway\n- Tanshinone IIA acted primarily through HIF-1α/VEGF signaling, promoting angiogenesis (new blood vessel formation) and improving microcirculation in ischemic tissue\n- When tested in combination, the two families showed additive cardioprotection beyond either alone — suggesting the traditional whole-root preparation capturing both fractions may be superior to isolated compounds\n\nThis mechanistic differentiation is practically significant: salvianolic acids appear most important for acute ischemic protection and antioxidant defense, while tanshinones contribute more to long-term vascular repair and remodeling.\n\nWu et al. 2020 — Vascular Endothelial Protection\n\nThis comprehensive review in Oxidative Medicine and Cellular Longevity [4] focused specifically on salvianolic acid's effects on the vascular endothelium — the single-cell-thick lining of every blood vessel that controls tone, inflammation, permeability, and coagulation.\n\nKey mechanistic findings:\n\n- Nitric oxide restoration: salvianolic acid B significantly increased eNOS (endothelial nitric oxide synthase) expression and activity, restoring NO availability in conditions where oxidative stress had quenched it. NO is essential for vasodilation and preventing platelet adhesion.\n- Oxidative stress protection: Sal B directly scavenges superoxide, hydrogen peroxide, and peroxynitrite, with measured antioxidant capacity exceeding that of resveratrol in direct comparisons\n- ICAM-1 and VCAM-1 suppression: salvianolic acids reduced expression of these adhesion molecules that recruit immune cells to inflamed arterial walls, a key step in atherosclerotic plaque initiation\n- Anti-thrombotic effects: inhibited thromboxane A2 synthesis and platelet aggregation through cyclooxygenase-independent mechanisms, complementing the Akt-mediated pathways\n\nThe review also noted that Sal B crosses the blood-brain barrier and shows neuroprotective effects in cerebral ischemia models — extending the cardiovascular protection into cerebrovascular territory, which is relevant given that many patients with heart disease face stroke risk.\n\nLiu et al. 2022 — Danshen in Non-Alcoholic Fatty Liver Disease …","deepTruncated":true,"references":[{"id":"1","title":"Salvia miltiorrhiza in Treating Cardiovascular Diseases: A Review on Its Pharmacological and Clinical Applications","authors":"Ren J, Fu L, Nile SH, Zhang J, Kai G","year":2019,"journal":"Frontiers in Pharmacology","pmid":"31338034","url":"https://pubmed.ncbi.nlm.nih.gov/31338034/"},{"id":"2","title":"Cardioprotective effect of danshensu against myocardial ischemia/reperfusion injury and inhibits apoptosis of H9c2 cardiomyocytes via Akt and ERK1/2 phosphorylation","authors":"Yin Y, Guan Y, Duan J, Wei G, Zhu Y, Quan W, Guo C, Zhou D, Wang Y, Xi M, Wen A","year":2013,"journal":"European Journal of Pharmacology","pmid":"23200898","url":"https://pubmed.ncbi.nlm.nih.gov/23200898/"},{"id":"3","title":"Differential cardioprotective effects of salvianolic acid and tanshinone on acute myocardial infarction are mediated by unique signaling pathways","authors":"Wang X, Wang Y, Jiang M, Zhu Y, Hu L, Fan G, Wang Y, Li X, Gao X","year":2011,"journal":"Journal of Ethnopharmacology","pmid":"21497648","url":"https://pubmed.ncbi.nlm.nih.gov/21497648/"},{"id":"4","title":"The Effect of Salvianolic Acid on Vascular Protection and Possible Mechanisms","authors":"Wu Y, Xu S, Tian XY","year":2020,"journal":"Oxidative Medicine and Cellular Longevity","pmid":"33062143","url":"https://pubmed.ncbi.nlm.nih.gov/33062143/"},{"id":"5","title":"Salvia miltiorrhiza Bge. (Danshen) in the Treating Non-alcoholic Fatty Liver Disease Based on the Regulator of Metabolic Targets","authors":"Liu J, Shi Y, Peng D, Wang L, Yu N, Wang G, Chen W","year":2022,"journal":"Frontiers in Cardiovascular Medicine","pmid":"35528835","url":"https://pubmed.ncbi.nlm.nih.gov/35528835/"}],"wordCount":1700,"source":{"path":"src/content/topics/danshen/cardiovascular-and-liver-protection.md"},"citeAs":"“Does danshen (red sage) really protect the heart and liver?.” What's Healthy and Why. https://whatshealthyandwhy.com/danshen/cardiovascular-and-liver-protection","notice":"General information backed by peer-reviewed research, not medical advice."}