Prospectives of the study of seminal fluid in the diagnosis of infertility

: Biochemical components usually evaluated in seminal plasma are lower than those in blood serum. In this study the concentration of different constituents in seminal plasma has been analyzed: creatinine, urea, glucose, uric acid, sodium, potassium, triglycerides, cholesterol, bilirubin, alkaline phosphatase, glutamic oxalacetic transaminase (SGOT), glutamic pyruvate transaminase (SGPT), cholinesterase, creatin phospho chinase (CPK), gamma glutamyl transpeptidase, lactic dehydrogenase (LDH), proteins, in comparison with the concentrations of the same constituents in blood. With the exception of uric acid, all the biochemical components in the seminal plasma were either significantly higher or lower than in blood serum, an index of the complexity of the mechanism regulating the presence and distribution of the single components in seminal plasma compared with blood serum. Isoelectro-focussing for proteins showed, in seminal plasma, a higher quantity of fragments and a different distribution of this in comparison with blood serum.