Correct option is D
Emerging lipid risk factors help identify cardiovascular risk more accurately than conventional lipid markers like LDL, HDL, and total cholesterol alone. Modern research shows that certain lipid-related markers offer a better understanding of a person's atherosclerotic and heart disease risk, especially in those with normal LDL/HDL levels but unexplained cardiovascular events.
1. Elevated Lipoprotein (a) [Lp(a)] (A):
· A unique lipoprotein formed by LDL particles attached to a protein called apolipoprotein (a).
· High Lp(a) levels increase plaque formation in arteries, contributing to atherosclerosis.
· It is hereditary and not significantly influenced by diet or lifestyle.
2. Low Apolipoprotein A-1 (B):
· Apo A-1 is the major protein component of HDL cholesterol, which helps remove LDL (bad cholesterol) from arteries.
· Lower Apo A-1 levels indicate reduced protective effect of HDL, hence a greater risk for cardiovascular disease.
3. High Total Cholesterol / HDL Cholesterol Ratio (D):
· This ratio indicates the balance between harmful and protective cholesterol.
· A higher ratio implies more total cholesterol relative to good HDL, showing higher atherogenic risk.
· It is a better predictor of heart disease than total cholesterol or LDL alone.
Information Booster:
· According to American Heart Association (AHA) and European Society of Cardiology (ESC), emerging lipid markers are now part of advanced lipid profiling in assessing CVD risk in people with normal traditional lipid values.
· Lp(a) measurement is especially important in those with premature heart disease or family history of CVD.
· Apo A-1 and Apo B/Apo A-1 ratio are increasingly used as alternatives to LDL/HDL estimation.
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Additional Knowledge:
· (C) Impaired glucose level – Incorrect:
· This is a metabolic risk factor, not a lipid-related factor. While diabetes and pre-diabetes increase CVD risk, they are categorized under glycemic control markers, not lipid markers.
· (E) Inflammatory markers – Incorrect:
· These include C-reactive protein (CRP), interleukins, fibrinogen, etc.
· Though important non-lipid risk factors, they are part of inflammatory and immune response markers, not lipid risk factors.