Arquivos brasileiros de cardiologia · 2013
[Lipid Tetrad Index (LTI) and Lipid Pentad Index (LPI) in healthy subjects].
Аннотация на английскомСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Morais Charles Augusto Dos Santos, Oliveira Samuel Henrique Vieira, Lima Luciana Moreira
Аннотация
BACKGROUND: The prevalence of cardiovascular disease (CVD) has increased steadily in recent years. Literature data show that about 35% of atherosclerotic events occur in the absence of classic risk factors, requiring a broader assessment of the individual to better characterize the risk. Lipid Tetrad Index (LTI) and Lipid Pentad Index (LPI) constitute a new and efficient evaluation of the lipid profile and CVD risk.
OBJECTIVE: This study assessed LTI and LPI in undergraduate students, seeking to establish the parameters of these indices in healthy subjects and correlate them with the conventional lipid profile.
METHODS: The study included 110 students, 48 (44%) males and 62 (56%) females, mean age 20.9 ± 1.7. Apolipoprotein-AI, apolipoprotein B, total cholesterol, lipoprotein(a), triglycerides, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) were assessed, using specific diagnostic methods. LTI and LPI indices were calculated using the equations LTI = [total cholesterol x triglycerides x lipoprotein(a) / HDL] and LPI = [total cholesterol x triglycerides x lipoprotein(a) x apolipoprotein B/apolipoprotein-AI], respectively.
RESULTS: LTI and LPI values were significantly higher in females compared to males. As for the other parameters, there were significant differences between males and females only regarding total cholesterol, HDL and apolipoprotein-AI. There were significant and positive correlations between LDL and LTI and between LDL and LPI.
CONCLUSIONS: Findings indicate that both LTI and LPI were associated with LDL, a parameter not used to calculate lipid indices and widely used in clinical practice for cardiovascular risk assessment.
OBJECTIVE: This study assessed LTI and LPI in undergraduate students, seeking to establish the parameters of these indices in healthy subjects and correlate them with the conventional lipid profile.
METHODS: The study included 110 students, 48 (44%) males and 62 (56%) females, mean age 20.9 ± 1.7. Apolipoprotein-AI, apolipoprotein B, total cholesterol, lipoprotein(a), triglycerides, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) were assessed, using specific diagnostic methods. LTI and LPI indices were calculated using the equations LTI = [total cholesterol x triglycerides x lipoprotein(a) / HDL] and LPI = [total cholesterol x triglycerides x lipoprotein(a) x apolipoprotein B/apolipoprotein-AI], respectively.
RESULTS: LTI and LPI values were significantly higher in females compared to males. As for the other parameters, there were significant differences between males and females only regarding total cholesterol, HDL and apolipoprotein-AI. There were significant and positive correlations between LDL and LTI and between LDL and LPI.
CONCLUSIONS: Findings indicate that both LTI and LPI were associated with LDL, a parameter not used to calculate lipid indices and widely used in clinical practice for cardiovascular risk assessment.