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Pilot study on the clinical effects of dietary supplementation With Enzogenol®, a flavonoid extract of pine bark and vitamin C
Author(s) -
Shand Brett,
Strey Chris,
Scott Russell,
Morrison Zarnia,
Gieseg Steven
Publication year - 2003
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.1181
Subject(s) - flavonoid , bark (sound) , pharmacognosy , traditional medicine , vitamin c , vitamin , medicine , folk medicine , phytotherapy , biology , chemistry , botany , food science , biological activity , antioxidant , in vitro , biochemistry , alternative medicine , ecology , pathology
Flavonoids are naturally occurring plant compounds with established in vitro antioxidant properties and potential cardioprotective effects. We carried out a 12‐week pilot study on the effects of dietary supplementation with an extract of bioavonoids prepared from the bark of Pinus radiata trees [Enzogenol®] containing added vitamin C. Data was collected from 24 healthy subjects aged between 55–75 years at baseline and at 6 and 12 weeks and included, routine biochemical and haematological indices, and anthropometric, blood pressure, forearm blood ow and haemorheological measurements. Enzogenol® supplementation at a dosage of 480 mg/day of pine bark extract and 240 mg/day vitamin C did not result in changes in any biochemical or haematological indice and was associated with a signicant reduction in the means of body weight, percentage body fat, systolic blood pressure and plasma viscosity. Basal and hyperaemic blood ow in forearm resistance vessels measured by plethysmography increased signicantly during the study. The ndings of this pilot study indicate that dietary supplementation with Enzogenol® is safe and well tolerated and is associated with a number of benecial effects on a range of established cardiovascular risk factors. These changes need to be validated by a placebo‐controlled study but are consistent with other studies that have reported benecial clinical effects following supplementation with bioavonoids. Copyright © 2003 John Wiley & Sons, Ltd.