[The concept of protein profile]

Area of Science:

• Clinical Chemistry
• Immunology
• Laboratory Medicine

Background:

• Simultaneous immunonephelometry allows for the measurement of multiple serum proteins concurrently.
• Interpreting individual protein levels can be challenging and probabilistic.
• A standardized approach to protein profiling is needed for improved diagnostic accuracy.

Purpose of the Study:

• To define a practical and interpretable protein profile based on laboratory technique and diagnostic application.
• To establish a method for visualizing relative protein variations for easier clinical assessment.
• To develop a diagnostic model based on inter-protein correlations and syndrome classification.

Main Methods:

• Simultaneous immunonephelometry assay for eight serum proteins.
• Expression of results in normalized values for diagrammatic representation.
• Analysis of inter-protein correlations to identify physiopathological patterns.

Main Results:

• A protein profile should include a minimum set of proteins selected based on physiopathology and suspected abnormalities.
• Inter-protein correlations provide a more robust basis for interpretation than isolated protein values.
• Syndromes can be effectively classified into elementary or complex groups based on protein profile analysis.

Conclusions:

• The proposed protein profiling method enhances diagnostic interpretation by focusing on relative variations and correlations.
• This approach facilitates the distinction between elementary and complex syndromes.
• The study offers a model for interpreting protein profiles, improving clinical decision-making.