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- Titel:
Influence of High Polyphenol Beverage on Stress-Induced Platelet Activation.
- Dokumenttyp:
- Journal Article
- Autor(en):
- Nickel, T; Lackermair, K; Scherr, J; Calatzis, A; Vogeser, M; Hanssen, H; Waidhauser, G; Schönermark, U; Methe, H; Horster, S; Wilbert-Lampen, U; Halle, M
- Abstract:
- Platelets are playing a crucial role in acute cardiovascular events. We investigated if physical stress activates platelets and whether this activation can be inhibited by a polyphenol-enriched diet.Blood samples were taken from a total of 103 athletes three weeks before, one day before, immediately as well as 24 hours and 72 hours after a marathon run. Participants were randomized, double-blinded and divided into two groups. One group received a polyphenol-rich beverage the other the same beverage without polyphenols. Besides analysis of platelet counts and impedance-aggregometric-measurement of platelet activity, soluble P-selectin and Endothelin-A measurements were performed.In the control group, runners showed a 2.2-fold increased platelet aggregation directly after completing a marathon and within the following three days when compared with baseline values (p<0.01). In accordance, significant increases in sP-selectin (57.52ng/ml vs. 94.86ng/ml; p<0.01) were detectable. In contrast, for the group consuming a beverage with increased polyphenol content (upper quartile of study beverage intake) we did not find any increase of platelet aggregation.Physical stress causes a significant increase in platelet activity. Our results demonstrate that a diet enriched in polyphenols is capable of preventing platelet activation. These findings might indicate a diminished cardiovascular stress-reaction following pre-exposition to polyphenol-enriched diet.
- Zeitschriftentitel:
- J Nutr Health Aging
- Jahr:
- 2016
- Band / Volume:
- 20
- Heft / Issue:
- 6
- Seitenangaben Beitrag:
- 586-93
- Sprache:
- eng
- Volltext / DOI:
- doi:10.1007/s12603-016-0697-y
- PubMed:
- http://view.ncbi.nlm.nih.gov/pubmed/27273347
- Print-ISSN:
- 1279-7707
- TUM Einrichtung:
- Poliklinik für Präventive und Rehabilitative Sportmedizin
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