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Platelets. 2003 Mar;14(2):103-8.

A study of whole blood platelet and white cell aggregation using a laser flow aggregometer.

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Medical Engineering Research Institute, University of Dundee, Dundee DD1 4HN, UK.


Both platelet aggregation and white blood cell aggregation are involved in pathological processes such as thrombosis, atherosclerosis and chronic inflammation. People in older age groups are likely to suffer from cardiovascular diseases and may have increased white cell and platelet aggregation which could contribute to this increased risk. This study aimed to compare white cell and platelet aggregation between different age and gender groups. Whole blood white cell aggregation and platelet aggregation were carried out on healthy volunteers using cytometric techniques. It was found that both white cell and platelet aggregation in the elderly group (white cell aggregation median value, 0.08; range, 0.02-0.14; platelet aggregation median value, 0.32; range, 0.1-0.39) were significantly higher (P = 0.017 for white cell aggregation, P = 0.007 for platelet aggregation) than in the younger group (white cell aggregation median value, 0.05; range, 0.01-0.14; platelet aggregation median value, 0.18; range, 0.07-0.36). No significant differences were found between the gender groups.

[Indexed for MEDLINE]

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