OHARA K, SANO I, KOIZUMI H, NISHINUMA K
Science. 1959 May 1;129(3357):1225-6. doi: 10.1126/science.129.3357.1225.
By using the methods of paper chromatography and high-potential paper electrophoresis and by comparing the pattern of prepared extracts with that of synthesized beta-hydroxy-gamma-aminobutyric acid, we found that free beta-hydroxy-gamma-aminobutyric acid exists in the brains of mice, rabbits, cattle, and human beings.