The objective of this clinical trial is to compare the effect of two different lipid emulsion formulations versus no emulsion on platelet aggregation in individuals without a history of ischemic disease. The hypothesis of this study is: Platelet aggregation is inversely associated with higher plasma lipid concentrations. The researchers will compare platelet aggregation in the presence and absence of lipid nanoemulsions in vitro through three pathways using the agonists collagen, adenosine diphosphate, and arachidonic acid. The tests will be performed using light-transmission aggregometry. Various participant parameters, such as lipid profile, will be evaluated to analyze possible correlations with the observed results. Participants must: Meet the study's inclusion criteria; Sign the informed consent form; Report to the blood draw laboratory at InCor's AB on the scheduled date and time after fasting for at least 8 hours.
A prospective case-control study in which the selected volunteers will serve as their own controls. Participant Selection: Volunteers with no known atherosclerotic disease will be selected from among employees of InCor/HCFMUSP and, if necessary, from the donor waiting list of the HCFMUSP blood bank.
Study Type
OBSERVATIONAL
Enrollment
45
Heart Institute, University of São Paulo Medical School (InCor/HCFMUSP)
São Paulo, São Paulo, Brazil
RECRUITINGEffect of Lipid Emulsions on Platelet Aggregation Assessed by Optical Aggregometry
Comparison of the effect of different lipid emulsion formulations versus no emulsion (control) on platelet aggregation in blood samples from individuals without a history of ischemic disease.
Time frame: Day 1 (single blood sample collection)
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