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Related Experiment Videos

Sperm fatty acid composition in subfertile men.

Yilmaz Aksoy1, Hülya Aksoy, Konca Altinkaynak

  • 1Department of Urology, School of Medicine, Atatürk University, TR-25240 Erzurum, Turkey. aksoyyilmaz@yahoo.com

Prostaglandins, Leukotrienes, and Essential Fatty Acids
|August 9, 2006
PubMed
Summary

Spermatozoa with lower docosahexaenoic acid (DHA) and polyunsaturated fatty acids (PUFA), and higher omega-6 to omega-3 (w6/w3) ratios are linked to male infertility. These fatty acid changes may contribute to reduced sperm motility, concentration, and morphology.

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Area of Science:

  • Reproductive Biology
  • Lipidomics
  • Andrology

Background:

  • Spermatozoa lipid composition is crucial for successful fertilization.
  • Fatty acid (FA) profiles influence sperm function and fertility.

Purpose of the Study:

  • To analyze and compare the fatty acid composition of spermatozoa in men with normal and abnormal sperm parameters.
  • To investigate the relationship between specific fatty acids and sperm quality metrics.

Main Methods:

  • Semen samples from normozoospermic, asthenozoospermic, oligozoospermic, and oligoasthenozoospermic men were analyzed for fatty acid composition.
  • Gas chromatography was used to quantify individual fatty acids and their ratios.

Main Results:

  • Men with asthenozoospermia, oligozoospermia, and oligoasthenozoospermia showed significantly lower levels of docosahexaenoic acid (DHA) and polyunsaturated fatty acids (PUFA).

Related Experiment Videos

  • Increased saturated fatty acids (SFA) and monounsaturated fatty acids (MFA) were observed in some patient groups.
  • A higher omega-6 to omega-3 (w6/w3) fatty acid ratio was found in asthenozoospermic men.
  • DHA and PUFA levels positively correlated with sperm motility, concentration, and morphology.
  • The w6/w3 ratio negatively correlated with sperm motility, concentration, and morphology.

    • Conclusions:

    • Decreased DHA and PUFA, along with an increased w6/w3 ratio in spermatozoa, are associated with male infertility.
    • These alterations in sperm fatty acid composition may be key factors contributing to reduced sperm function in infertile men.