Molecular target
Thromboxane A2 Pathway
Pro-aggregatory and vasoconstrictive prostanoid produced by COX-1 in platelets. Aspirin's antiplatelet effect operates via TXA2 suppression. Garlic, ginkgo, and several other plants modulate TXA2 — relevant to bleeding interaction profiles.
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Pharmaceutical agents
Drugs that act on Thromboxane A2 Pathway
These medications have Thromboxane A2 Pathway among their molecular targets. Sharing a target is a mechanistic relationship — it does not make any plant below an alternative to, or substitute for, these drugs.
Botanical connections
Plants whose compounds act on Thromboxane A2 Pathway
Each plant below contains a named compound documented to act on Thromboxane A2 Pathway. The compound and the reason for the connection are shown on every edge — a shared mechanism, not a therapeutic equivalence.
- AllicinOrganosulfur
Primary fresh-garlic compound; antiplatelet via thromboxane suppression. Unstable — degrades quickly into other organosulfurs.
- Diallyl sulfidesOrganosulfur
Lipid-soluble organosulfurs; CYP modulation relevant to antiretroviral interactions.
- AjoeneOrganosulfur
Crushed-garlic compound with strong antiplatelet activity.
- Gamma-linolenic acid (GLA)Omega-6 polyunsaturated fatty acid
GLA is a precursor to dihomo-GLA (DGLA) and subsequently to prostaglandin E1 (PGE1); studies propose this downstream pathway may modulate prostaglandin and leukotriene synthesis. In vitro studies report DGLA-derived metabolites may competitively inhibit arachidonic-acid-derived pro-inflammatory eicosanoids via COX and 5-LOX pathways. Platelet-activating factor and thromboxane A2 pathway modulation has also been proposed mechanistically.
- α-Linolenic acidomega-3 fatty acid
Partially converts to EPA and DHA; substrate for anti-inflammatory eicosanoid production (decreased PGE2 and TXA2 production), explaining cardiovascular and anti-inflammatory benefits.
- Panax notoginseng saponins (PNS) — notoginsenoside R1, ginsenoside Rb1, ginsenoside Rg1Triterpenoid saponins
Studies report multi-target activity: inhibition of NF-κB–mediated neuroinflammation, modulation of thromboxane A2 and arachidonic acid pathways to attenuate platelet aggregation, nitric oxide/cGMP pathway modulation, NMDA receptor involvement in neuroprotection, and L-type calcium channel effects relevant to cardiovascular research contexts.
- Procyanidins / Flavanols (epicatechin, catechin)Polyphenols
Studies report inhibition of platelet activation, modulation of eicosanoid pathways, and upregulation of nitric oxide bioavailability. Murphy et al. (2003) reported inhibition of platelet function in healthy volunteers following cocoa flavanol supplementation.
- RutaecarpineIndoloquinazolinone alkaloid
Chiou et al. (1996) reported nitric oxide-dependent vasodilatation (full, 100% endothelium-dependent) in isolated rat aorta. Sheu et al. (2000) reported antithrombotic activity in a murine model, with prolongation of platelet plug occlusion time compared with aspirin on a molar basis.
- Quercetinflavonoid
Inhibits platelet aggregation via TXA2 pathway, mild ACE inhibition, and stabilizes mast cells (reducing histamine release).
- Hydroxysafflor yellow A (HSYA)Quinochalcone C-glycoside
Preclinical studies report inhibition of platelet aggregation via TXA2 and PAF pathways, modulation of NF-κB signalling, and influences on nitric oxide production; investigated in cardiovascular and cerebrovascular contexts.