Hawthorn Berry & Flower (Crataegus monogyna): European Cardiac Tonic, Oligomeric Procyanidins, and Coronary Blood Flow

The Sacred May-Tree of European Cardiology

Forming dense thorny hedgerows across the European countryside, Hawthorn (Crataegus monogyna / Crataegus laevigata) produces fragrant white spring blossoms and deep red autumn berries (Haws) that have formed Europe\'s premier natural cardiovascular tonic since the 1st century CE.

1. Oligomeric Procyanidins ($OPCs$) & Vitexin Flavonoids

• Positive Inotropic & Lusitropic Action: Standardized Hawthorn leaf/flower extracts (such as $WS\text{ 1442}$) enhance myocardial contractile efficiency without increasing heart rate.
• Coronary Vasodilation: Relaxes smooth vascular muscle in coronary arteries, improving oxygen delivery to heart muscle cells.

2. References & Clinical Citations

• Pittler, M. H., et al. (2008). Hawthorn extract for treating chronic heart failure. Cochrane Database of Systematic Reviews, (1), CD005312. [PubMed: 18254076]
• Holubarsch, C. J., et al. (2008). The efficacy and safety of Crataegus extract WS 1442 in patients with heart failure. European Journal of Heart Failure, 10(12), 1255-1263. [PubMed: 18987483]

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