Plasma Free Amino Acid Profile in HIV-Positive Cases

Area of Science:

• Metabolomics
• Biochemistry
• Infectious Diseases

Background:

• Liquid chromatography tandem mass spectrometry (LC-MS/MS) offers enhanced sensitivity for metabolic pathway analysis in HIV.
• Understanding metabolic changes is crucial for elucidating HIV pathophysiology.

Purpose of the Study:

• To compare amino acid levels between HIV-positive patients and healthy individuals using LC-MS/MS.
• To investigate the relationship between altered amino acid profiles and HIV infection.

Main Methods:

• Analyzed 36 amino acids and derivatives in plasma from 24 HIV-positive patients and 24 healthy controls.
• Employed the LC-MS/MS technique for precise quantification.

Main Results:

• HIV-positive subjects exhibited significantly lower levels of alanine, valine, lysine, and tryptophan, among others.
• Elevated levels of 3-methyl-L-histidine, asparagine, glutamate, and carnosine were observed in HIV-positive individuals.
• No significant differences were found for other measured amino acids.

Conclusions:

• Distinct amino acid profiles in HIV-positive patients may serve as biomarkers for cellular damage.
• Findings can inform clinical management by linking metabolic alterations to symptoms in HIV.
• Further research is warranted to explore the full metabolomic context in HIV.