Sperm function in different human sperm subpopulations

Abstract

Human semen contains a heterogenous population of spermatozoa of which only a certain fraction is physiologically suitable for fertilization. Functional characteristics of these subpopulations and sperm separation techniques are not well understood. Furthermore, the questionable reliability of basic semen analyses has led to more emphasis being placed upon the assessment of detailed sperm functional parameters in determining male factor infertility as well as media supplements that could possibly enhance male fertility.