Early diabetes screening via red blood cell mechanics using microfluidic chip integration

Area of Science:

• Biomedical Engineering
• Cellular Biology
• Diagnostic Technologies

Background:

• Early diabetes diagnosis is critical to prevent irreversible complications.
• Conventional tests like Fasting Plasma Glucose (FPG) and Hemoglobin A1c (HbA1c) have limitations in detecting early-stage diabetes.
• Changes in red blood cell (RBC) mechanical properties may indicate early diabetic pathology.

Purpose of the Study:

• To investigate the potential of RBC mechanical properties as an early diagnostic marker for diabetes.
• To develop and utilize a microfluidic chip for assessing RBC deformability under shear flow.
• To establish correlations between RBC morphology, mechanical stimuli, and potential diabetic indicators.

Main Methods:

• Development of a microfluidic chip with a symmetrical hyperbolic structure to generate reciprocating shear flow.
• Periodic alteration of valve membrane states to create controlled shear flow fields.
• Quantification of RBC morphological parameters and assessment of their resistance to mechanical stimuli in healthy volunteers.

Main Results:

• A significant correlation was observed between RBC deformability and age in healthy individuals.
• No significant correlation was found between RBC deformability and gender within the same age group.
• The study established a link between the applied shear flow field and RBC morphological changes.

Conclusions:

• RBC mechanical properties, specifically deformability, show potential as an early diagnostic indicator for diabetes.
• Microfluidic chip technology offers a promising high-throughput solution for large-scale clinical screening of diabetes.
• This approach could complement or improve upon existing diagnostic methods for diabetes management.