The phospholipid composition of spermatozoa in healthy subjects (n = 13) and infertile men (n = 38) was studied. The level of inorganic phosphorus of total phospholipids decreased in spermatozoa of infertile men (relative and excretory infertility). It was found that the phosphatidyl ethanolamine amount in spermatozoa of infertile men fell. The level of phosphatidyl serine had certain tendency to decrease as well. Lyso-phosphatidyl serine was detected in some samples of infertile spermatozoa. Correlation between the amount of spermatozoa, its motility, vitality etc. and content of some phospholipids was found.
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