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A Study of the Normal Pattern of Platelet Aggregation in Healthy Saudis: A Population-based Study
A M Gader1, H M Bahakim, S S Malaika
1Department of Physiology, College of Medicine and King Khalid University Hospital, Riyadh, 11461, Saudi Arabia.
Platelets
|November 4, 2010
Summary
This study found that healthy Saudi females show enhanced platelet aggregation compared to males. Factors like blood type, smoking, and body weight did not significantly impact platelet aggregability in this population.
Area of Science:
- Hematology
- Clinical Physiology
Background:
- Platelet aggregation is crucial for hemostasis.
- Understanding normal platelet function in diverse populations is essential for interpreting clinical data.
Purpose of the Study:
- To establish reference ranges for platelet aggregation in a large Saudi population.
- To investigate the influence of sex, age, blood group, smoking, and body weight on platelet aggregability.
Main Methods:
- Platelet aggregation was measured using various agonists: adenosine diphosphate (ADP), adrenaline, collagen, arachidonic acid, and ristocetin.
- A large cohort of healthy Saudi males (n=393) and females (n=221) aged 11-60 years was studied.
- Data analysis considered multiple doses of agonists and varying observation numbers.
Main Results:
- Females demonstrated significantly enhanced platelet aggregation responses compared to males.
- Blood groups, smoking status, and body weight showed no significant effect on platelet aggregability.
- No significant diurnal variations (morning vs. afternoon) in platelet aggregation were observed.
Conclusions:
- This study provides normative data for platelet aggregation in healthy Saudis.
- Sex is a significant determinant of platelet aggregation, with females exhibiting higher responses.
- Established reference values can aid in diagnosing and managing hemostatic disorders in this demographic.
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