[Solid-phase immunoenzyme analysis of apoprotein A-1].

Area of Science:

• Biochemistry
• Immunology

Context:

• Apolipoprotein A-1 (apoA-1) is a key component of high-density lipoprotein (HDL) and plays a crucial role in reverse cholesterol transport.
• Accurate measurement of apoA-1 levels is important for assessing cardiovascular disease risk.

Purpose:

• To optimize an indirect solid-phase enzyme immunoassay for the quantitative measurement of human blood serum apoA-1.
• To establish reliable working conditions for assay components and conjugates.
• To investigate the impact of serum pretreatment on the detection of apoA-1 antigenic determinants.

Summary:

• An indirect solid-phase enzyme immunoassay was optimized for human serum apoA-1 measurement.
• Immunochemical identification and selection of optimal working regimens for apoA-1, antibodies, and conjugates were performed.
• The relationship between serum pretreatment methods and the detection of apoA-1 antigenic determinants was established.
• Normal serum apoA-1 levels were determined as 1.06 +/- 0.1 g/l for females and 1.05 +/- 0.1 g/l for males.

Impact:

• Provides a validated and optimized immunoassay for routine clinical assessment of apoA-1 levels.
• Contributes to a better understanding of apoA-1 quantification and its relationship with serum processing.
• Establishes reference ranges for apoA-1, aiding in the diagnosis and management of dyslipidemias and cardiovascular health.