LSH-X and HBDH/LDH ratio in human semen.
The enzymatic activities of lactate dehydrogenase (LDH) and alpha-hydroxybutyrate dehdyrogenase (HBDH) were measured in 87 semen samples. The highest values of these enzymes correspond to the specimens with greatest sperm density and motility. There was a positive correlation between the enzymatic parameters and sperm density and motility. There was a positive correlation between the HBDH/LDH ratio and the percent LDH-X. The estimation of the HBDH/LDH ratio, easily and rapidly done, can be a substitute for direct LDH-X estimations. The HBDH/LDH ratio greater than 1.0 that was noted in men with good sperm motility and normal sperm counts, could represent a reliable index of semen quality.
D000328:Adult; D006801:Humans; D006884:Hydroxybutyrate Dehydrogenase / Q000032:analysis*; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000032:analysis*; D008297:Male; D012661:Semen / Q000201:enzymology*; D013076:Sperm Count; D013081:Sperm Motility
D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase; D006884:Hydroxybutyrate Dehydrogenase