Skip to main content

Pregnenolone Sulfate

Meaning

Pregnenolone sulfate (PregS) is a sulfated derivative of the pro-hormone pregnenolone, which is the initial product in the steroidogenesis cascade derived from cholesterol. PregS is a potent neurosteroid found in high concentrations in the brain, where it acts as a positive allosteric modulator of the NMDA receptor and a negative allosteric modulator of the GABAA receptor. It is crucial for neuroendocrine function, memory, and mood regulation, distinct from its role as a precursor to other adrenal and sex steroids.