Endocrine Abstracts

The adrenal gland is composed of the medulla and the cortex, which is further subdivided into three zones: zona glomerulosa (zG), zona fasciculata (zF) and zona reticularis (zR). The zones of the cortex are functionally characterised by their ability to synthesise different steroids and consequently they express different steroidogenic enzymes. These and other markers of the zones have been described but so far no good candidate for a determining factor of zonal establishment ...