Bioanalytical and Mass Spectrometric Methods for Aldehyde Profiling in Biological Fluids

Area of Science:

• Biochemistry
• Analytical Chemistry
• Toxicology

Background:

• Aldehydes are electrophilic compounds implicated in various diseases, including diabetes, cardiovascular diseases, neurodegenerative disorders, and cancer.
• Aldehyde exposure can lead to DNA and protein modifications, potentially causing cellular dysfunction and disease pathogenesis.
• Accurate measurement of aldehyde exposure is crucial for understanding their role in disease.

Purpose of the Study:

• To review current methods for measuring aldehyde exposure, focusing on bioanalytical and mass spectrometry techniques.
• To highlight recent advances in mass spectrometry (MS)-based profiling for identifying aldehyde exposure biomarkers.
• To discuss the application of these methods in molecular epidemiology and cellular studies.

Main Methods:

• Overview of bioanalytical techniques for capturing and quantifying aldehydes in biological matrices.
• Focus on mass spectrometry (MS)-based methods, including high-resolution accurate mass (HR/AM) analysis.
• Discussion of derivatization reagents for small polar aldehydes and chromatographic separation techniques.

Main Results:

• Advances in MS instrumentation and bioinformatics tools enhance sensitivity for aldehyde detection.
• Emerging methods allow for real-time imaging and remote monitoring of aldehydic load.
• New techniques enable single-cell analysis for detailed profiling of aldehydes.

Conclusions:

• Improved analytical methods increase sensitivity for identifying specific aldehydes and novel biomarkers.
• The combination of advanced techniques offers potential for dissecting aldehyde roles at the cellular level.
• These advancements facilitate a deeper understanding of aldehyde involvement in disease pathogenesis.