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Article Publish Status: FREE
Abstract Title:

Effects of French maritime pine bark/bilberry fruit extracts on intraocular pressure for primary open-angle glaucoma.

Abstract Source:

J Clin Biochem Nutr. 2021 Jan ;68(1):67-72. Epub 2020 Jul 10. PMID: 33536714

Abstract Author(s):

Kaoru Manabe, Sachiko Kaidzu, Aika Tsutsui, Mihoko Mochiji, Yotaro Matsuoka, Yasutaka Takagi, Etsuyo Miyamoto, Masaki Tanito

Article Affiliation:

Kaoru Manabe

Abstract:

We tested oral French maritime pine bark (40 mg)/bilberry fruit extract (90 mg) supplements for intraocular pressure-lowering effects in Japanese subjects with primary open-angle glaucoma. Eighteen subjects (29 eyes) were recruited with intraocular pressure of ≥15 mmHg who used one to three bottles of antiglaucoma medications. After a 2-week observation (period 1), subjects ingested a tablet/day of SanteGlagenox for 4 weeks (period 2). The mean intraocular pressure (17.2 ± 2.3 mmHg) decreased significantly to 15.7 ± 1.9 mmHg (8.7% reduction) at week 4 ( = 0.0046). The mean morning intraocular pressure (14.1 ± 3.1 mmHg) self-measured using the iCare HOME tonometer during period 1 decreased significantly to 13.3 ± 2.9 mmHg (5.7% reduction) during period 2 ( = 0.0291). Blood redox parameters, diacron reactive oxygen metabolites, biologic antioxidant potential, and sulfhydryl tests were unchanged after 4-week supplementation. Intra-subject comparisons, compared to period 1, showed pooled, self-measured, period-2 intraocular pressures was significantlylower in nine subjects (50%), unchanged in six subjects (33%), and elevated in three subjects (17%), suggesting some non-responders. Four-week supplementation with French maritime pine bark/bilberry fruit extracts can further reduce intraocular pressure even in Japanese patients with controlled primary open-angle glaucoma. Further study should confirm the intraocular pressure-lowering effects and mechanisms of this supplement in glaucoma management. The study was registered in UMIN (ID: UMIN000033200).

Study Type : Human Study

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