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Seminal Fluid Peptides

Meaning

Seminal fluid peptides are a diverse collection of small protein fragments and signaling molecules found within the seminal plasma, the fluid component of semen that is distinct from the spermatozoa. These bioactive peptides serve multiple critical functions beyond simply acting as a transport medium for sperm, playing roles in sperm motility, capacitation, and the modulation of the female reproductive tract’s immune response. They include a wide range of factors, such as growth factors, cytokines, and antimicrobial peptides, which are essential for successful fertilization and the maintenance of male reproductive tract health. Analyzing these peptides offers potential biomarkers for male fertility and urogenital pathology.