[Determination of globin synthesis studies using high performance liquid chromatography technique]

Area of Science:

• Hematology
• Biochemistry
• Analytical Chemistry

Context:

• Thalassemia diagnosis relies on accurate globin chain synthesis ratio assessment.
• Conventional methods like carboxymethyl cellulose (CMC) chromatography are time-consuming and require large sample volumes.
• Developing rapid and efficient diagnostic tools is crucial for clinical settings.

Purpose:

• To evaluate high-performance liquid chromatography (HPLC) as a rapid and simple method for determining in vitro globin chain synthesis ratios (beta/alpha).
• To compare the efficacy of two cation exchange columns (Mono S and TSK gel) for HPLC analysis of hemolysates.
• To establish reference globin chain ratios for normal individuals and various thalassemia conditions.

Summary:

• HPLC analysis of hemolysates using a TSK gel column provided better resolution and sharper elution profiles for globin peptides compared to a Mono S column.
• The HPLC method, taking approximately two hours, is significantly faster than traditional CMC chromatography (24 hours).
• HPLC successfully determined globin chain synthesis ratios in normal controls (1.04-1.08) and patients with beta-thalassemia minor (0.23-0.89), alpha-thalassemia trait (1.22-1.62), and Hb H disease (2.05-4.29).

Impact:

• HPLC provides a simpler, faster, and more efficient alternative for diagnosing and characterizing different types of thalassemia.
• This method can improve the speed and accessibility of thalassemia screening and diagnosis, particularly in resource-limited settings.
• Accurate globin chain synthesis ratios obtained via HPLC can aid in patient management and genetic counseling.