Table 4. Comparison of neurobiological parameters between patients with anxiety disorder and mouse models of enhanced anxiety-related behavior.
Patients† | Mouse models | |||
---|---|---|---|---|
Neuroanatomical (volume) alterations | ||||
Anterior cingulate cortex | ↓ | [492–498] | – | – |
Orbitofrontal cortex | ↓ | [497,499,500] | – | – |
Hippocampus | ↓ | [497,501–503] | ↓ | [198,504] |
Amygdala | ↓ | [494,498,505] | ↓ | [506] |
Activity processing | ||||
Amygdala | ↑(↓)‡ | [22] | ↑(↓)§ | [54,119,224,305,309,362,363,364] |
Prefrontal cortex | ↑ dACC | [22] | – | – |
↑↓‡ rACC | [22] | ↑↓ Cg | [77,183,259,261,507] | |
Neurochemistry | ||||
GABA system | ↓ | [21] | ↓ | [87,508,509] |
NA system | ↑ | [21] | ↑ | [136,510] |
5-HT system | Not clear | – | – | |
DA system | Not clear | – | – | |
Neuropeptides | ↑ CRH | [21] | ↑ CRH | [511–514] |
↑↓ NPY | [21] | ↓ NPY | [209] | |
↑ SP | [515,516] | ↑ SP | [328] | |
Physiological parameters including autonomic arousal | ||||
Autonomic arousal | ↑ | [517–518] | ↑ | [80,385,519] |
Sleep disturbance/insomnia | Yes | [17,520,599] | Yes | [362,521,522] |
Neuroendocrinology | ||||
CORT | ↑ ↓ | [21] | ↑ ↓ | [136,140,511,512,514,523] |
Mainly post-traumatic stress disorder or panic disorder.
Based on a very small number of studies.
Increased activation mainly in the central amygdala (see. Table 5).
↑: Increased; ↓: Decreased; 5-HT: Serotonin; Cg: Cingulate cortex; CORT: Cortisol/corticosterone; CRH: Corticotropin-releasing hormone; DA: Dopamine; dACC: Dorsal anterior cingulate cortex; NA: Noradrenaline; NPY: Neuropeptide Y; rACC: Rostral anterior cingulate cortex; SP: Substance P.