https://www.selleckchem.com/pr....oducts/epz015666.htm
The objective of this study was to investigate the significance of the blood levels of free amino acids (AAs) in infertile men. Ninety-three men who underwent examinations for infertility were included. The concentrations of 20 AAs were measured and compared in four groups (normospermia, obstructive azoospermia, oligozoospermia, non-obstructive azoospermia) based on semen analysis and clinical parameters. When the 93 men were divided into normospermia, obstructive azoospermia, oligozoospermia, and non-obstructive azoospermia groups, n