Correlation between human sperm hypo-osmotic swelling test and other semen parameters

Area of Science:

• Reproductive biology
• Andrology
• Semen analysis

Background:

• Semen analysis is crucial for evaluating male infertility.
• The hypo-osmotic swelling test (HOST) assesses sperm membrane integrity and function.
• Understanding factors influencing HOST results is vital for accurate diagnosis.

Purpose of the Study:

• To investigate the correlation between sperm swelling in the hypo-osmotic swelling test and various semen parameters.
• To determine the influence of sperm physico-chemical properties on hypo-osmotic swelling.
• To establish the role of sperm quality versus quantity in the hypo-osmotic swelling test.

Main Methods:

• Ninety semen samples were analyzed, categorized into normospermic, oligospermic, asthenospermic, and oligoasthenospermic groups.
• Routine semen analysis was performed alongside the hypo-osmotic swelling test.
• Total protein and specific gravity of semen samples were measured.

Main Results:

• A significant positive correlation was found between percent sperm swelling and sperm motility, total protein, and specific gravity.
• A significant negative correlation was observed between percent sperm swelling and sperm count.
• Distinct correlations were noted between percent sperm swelling and different patient groups, despite overlapping ranges.

Conclusions:

• Sperm quality, particularly motility and physico-chemical properties, is the primary determinant of the hypo-osmotic swelling test outcome.
• The hypo-osmotic swelling test is a valuable indicator of sperm functional status, reflecting membrane integrity and potential fertilizing capacity.
• Sperm physico-chemical properties play a significant role in influencing sperm swelling response.