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Fibrinogen, Hematocrit, Platelets in Mild Kidney Dysfunction and the Role of Uric Acid: An Italian Male Population Study

^* To whom correspondence should be addressed. E-mail: lea.correa{at}itb.cnr.it.

	Abstract

Aim: To examine the relationship between some blood parameters and mild kidney dysfunction. < b>Participants and Methods: A total of 719 Italian men aged 42 to 74 years from a population-based survey carried out in the town of Bollate (Milan). General linear models were used to examine the variations in plasma fibrinogen, hematocrit, platelet counts, mean platelet volume, and uric acid across levels of kidney function (estimated on the basis of glomerular filtration rate [GFR]), adjusting for age, education, smoking, alcohol consumption, physical activity (evaluated as TV watching, engaging in sport practice, and walking/cycling), waist circumference, arm muscle area, high-density lipoprotein (HDL)-cholesterol, triglycerides, hypertension, diabetes, cardiovascular disease history, and nonsteroid anti-inflammatory, diuretic, and antihypertensive drug use. Results: Plasma fibrinogen and hematocrit levels increased, and platelet counts and mean platelet volume significantly decreased as GFR fell to <80 or <70 mL/min per 1.73 m²; stratified analysis revealed an association with serum uric acid levels. Alterations compatible with an increased cardiovascular risk were particularly evident among the participants with higher uric acid levels, whereas those indicative of platelet dysfunction were found among participants with lower levels. Conclusions: Parameters affecting hemostasis and blood viscosity are altered when kidney function is only slightly reduced, and the patterns of these relationships seem to be influenced by the levels of serum uric acid, whose easy and inexpensive measurement could have prognostic value.

First published on October 13, 2009
Clinical and Applied Thrombosis/Hemostasis 2009, doi:10.1177/1076029609347901


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