Quantitative Analysis of Total Plasma Homocysteine by LC-MS/MS.

Area of Science:

• Biochemistry
• Clinical Chemistry
• Metabolic Disorders

Background:

• Homocysteine, a sulfur-containing amino acid, is integral to one-carbon (folate) metabolism.
• Elevated homocysteine levels (homocysteinemia) are associated with inherited and acquired conditions.
• Homocysteinemia is a recognized risk factor for cardiovascular disease and recurrent thrombosis.

Purpose of the Study:

• To highlight the importance of accurate total plasma homocysteine measurement in diagnosing related disorders.
• To focus on liquid chromatography-tandem mass spectrometry as a preferred analytical technique.

Main Methods:

• Discussion of various methods for homocysteine quantification.
• Detailed examination of liquid chromatography-tandem mass spectrometry (LC-MS/MS) for total plasma homocysteine analysis.

Main Results:

• LC-MS/MS offers superior speed, sensitivity, and specificity compared to other methods.
• Accurate homocysteine quantification is essential for clinical diagnosis and risk assessment.

Conclusions:

• Liquid chromatography-tandem mass spectrometry is a highly advantageous method for measuring total plasma homocysteine.
• Precise homocysteine level determination aids in the diagnosis and management of associated health risks, particularly cardiovascular disease.