| The abnormal activation and division of astroglial cells in neurodegenerative states like Alzheimer's disease may trigger their abnormal production of neuroactive substance that ultimately result in cholinergic cell atrophy. |
| Neuroactive peptides are sequences of amino acids, usually longer than amino acid neurotransmitters yet shorter than hormones or proteins. |
| Some are neuroactive and, unlike classic steroid hormones, act within the nervous system through paracrine or autocrine mechanisms. |
| Unlike natural progesterone, synthetic progestogens are not metabolized into GABA-ergic neuroactive steroids. |
| This may mean that different areas of a single neuron synthesize different neuroactive substances. |
| The USA advocates an interpretation of the CWC that would allow the use of tear gas, opium-like substances and other neuroactive compounds in combat. |
