The ratio of angiotensinogen/6-sulfatoxymelatonin was calculated as (angiotensinogen/creatinine ratio, ug/g)/(6-sulfatoxymelatonin, ug/h) significantly increased in the first morning void urine samples of patients with gestational diabetes and preeclampsia–Figure 4 and Table 1. This evidence concerns the gene AGT and preeclampsia.