Figure 2From: The correlation between urinary 5-hydroxyindoleacetic acid and sperm quality in infertile men and rotating shift workersInfertile night shift workers exhibit elevated 5- hydroxyindoleacetic acid (5-HIIA) levels. Histograms display urinary 5-HIIA levels found in urines (19:00 h) from both fertile (recent fathers) and infertile night shift workers. Data are presented as mean ± SEM of 10 different volunteers. * statistically significant regarding controls.Back to article page