How are TRIG and CHOL analyzed?

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Multiple Choice

How are TRIG and CHOL analyzed?

The measurement relies on enzyme-based colorimetric assays that turn lipid amounts into a detectable signal. For triglycerides, a lipase-based approach is used because lipase specifically breaks down triglycerides into glycerol and free fatty acids. The glycerol is then processed through a catalytic sequence that ultimately produces a color change proportional to the triglyceride level, allowing quantification. For cholesterol, hydrolysis of cholesterol esters is needed before detection. Cholesteryl esterase (cholesterol esterase) converts esters to free cholesterol, and then a peroxidase-driven reaction in the presence of hydrogen peroxide produces a colored product. This setup links the amount of cholesterol to the intensity of the color readout. That’s why the lipase-based method for triglycerides and the cholesteryl esterase/peroxidase approach for cholesterol are the correct pair. Other enzyme choices don’t align with how triglycerides and cholesterol are specifically targeted and detected in standard enzymatic lipid assays.

The measurement relies on enzyme-based colorimetric assays that turn lipid amounts into a detectable signal. For triglycerides, a lipase-based approach is used because lipase specifically breaks down triglycerides into glycerol and free fatty acids. The glycerol is then processed through a catalytic sequence that ultimately produces a color change proportional to the triglyceride level, allowing quantification.

For cholesterol, hydrolysis of cholesterol esters is needed before detection. Cholesteryl esterase (cholesterol esterase) converts esters to free cholesterol, and then a peroxidase-driven reaction in the presence of hydrogen peroxide produces a colored product. This setup links the amount of cholesterol to the intensity of the color readout.

That’s why the lipase-based method for triglycerides and the cholesteryl esterase/peroxidase approach for cholesterol are the correct pair. Other enzyme choices don’t align with how triglycerides and cholesterol are specifically targeted and detected in standard enzymatic lipid assays.

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