Comparison study of microfluidic sperm selection chips with density gradient centrifugation and upstream methods in...

Area of Science:

• Reproductive biology
• Andrology
• Biotechnology

Background:

• Sperm preparation is crucial for assisted reproductive technologies.
• Traditional methods like density gradient centrifugation and swim-up have limitations.
• Novel sperm selection techniques are needed to improve outcomes.

Purpose of the Study:

• To compare the efficacy of microfluidic sperm selection chips against traditional methods.
• To evaluate sperm parameters including motility, morphology, DNA fragmentation, and leukocyte levels.
• To assess the recovery rate and concentration of sperm obtained by each method.

Main Methods:

• Sixty semen samples were analyzed.
• Sperm were processed using microfluidic chips, density gradient centrifugation, and swim-up.
• Key sperm parameters were assessed post-processing.

Main Results:

• All methods improved sperm motility and reduced abnormal morphology, DNA fragmentation, and leukocytes.
• Microfluidic chips yielded sperm with superior motility, morphology, and DNA integrity.
• Progressive motility recovery rates were comparable across all techniques.
• Microfluidic chips resulted in lower sperm recovery rates and concentration.

Conclusions:

• Microfluidic sperm selection chips are effective in isolating high-quality sperm.
• Despite lower yield, microfluidic technology shows promise for fertility treatments.
• Further optimization may enhance sperm recovery rates for microfluidic devices.