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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Ginkgo biloba extract increases ocular blood flow velocity.

Abstract Source:

J Ocul Pharmacol Ther. 1999 Jun;15(3):233-40. PMID: 10385132

Abstract Author(s):

H S Chung, A Harris, J K Kristinsson, T A Ciulla, C Kagemann, R Ritch

Abstract:

We evaluated a possible therapeutic effect of Ginkgo biloba extract (GBE) on glaucoma patients that may benefit from improvements in ocular blood flow. A Phase I cross-over trial of GBE with placebo control in 11 healthy volunteers (8 women, 3 men: Age; 34 +/- 3 years, mean +/- SE) was performed. Patients were treated with either GBE 40 mg or placebo three times daily orally, for 2 days. Color Doppler imaging (Siemens Quantum 2000) was used to measure ocular blood flow before and after treatment. There was a two week washout period between GBE and placebo treatment. Ginkgo biloba extract significantly increased end diastolic velocity (EDV) in the ophthalmic artery (OA) (baseline vs GBE-treatment; 6.5 +/- 0.5 vs 7.7 +/- 0.5 cm/sec, 23% change, p=0.023), with no change seen in placebo (baseline vs GBE-treatment; 7.2 +/- 0.6 vs 7.1 +/- 0.5 cm/sec, 3% change, p=0.892). No side effects related to GBE were found. Ginkgo biloba extract did not alter arterial blood pressure, heart rate, or IOP. Ginkgo biloba extract significantly increased EDV in the OA and deserves further investigation in ocular blood flow and neuroprotection for possible application to the treatment of glaucomatous optic neuropathy as well as other ischemic ocular diseases.

Study Type : Human Study
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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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