Table 2.
5HTR distribution in animal and human brains specific to symptom group.
| 5-HTR family |
Symptom group(s) |
Distribution and Changes | |
|---|---|---|---|
| Animal | Human | ||
| 5-HTR1 | Cognition | Hippocampus[139], prefrontal cortex[18] | Hippocampus[139], rostral raphe nuclei [12][80], temporal cortex[40] |
| BPSD | Frontal, temporal [104][26], amygdala[80] | Unknown | |
| 5-HTR2 | Cognition | Hippocampus [139], prefrontal cortex [18][80], amygdala[80] | Hippocampus[139], prefrontal cortex[48] |
| BPSD | Frontal[105], temporal[80], cingulate, hippocampus, amygdala[80] | Prefrontal[79][102], bed nucleus of stria termalis[78], amygdala[78], hippocampus[78], nucleus accumbens[102][105] |
|
| 5-HTR3 | Cognition | Prefrontal cortex[18], limbic system[139] | Hippocampus[57][139] |
| BPSD | Amygdala, hippocampus[57] | Hippocampus[86], amygdala[86] | |
| 5-HTR4 | Cognition | Hippocampus[43][140], prefrontal cortex[12] | Hippocampus [42], nucleus accumbens[87] |
| BPSD | Frontal[44], amygdala[80], hippocampus[43] | Hippocampus[42], cerebrum[99] | |
| 5-HTR5 | Cognition | Hippocampus [139], prefrontal cortex[12], amygdala[12] | Prefrontal cortex[12], amygdala[12], hypothalamus[12] |
| BPSD | Unknown | Hippocampus[12], prefrontal cortex[12] | |
| 5-HTR6 | Cognition | Hippocampus[139] | Prefrontal cortex[48], temporal cortex[40] |
| BPSD | Hippocampus[49], dorsal raphe nucleus[49] | Neocortex[85] | |
| 5-HTR7 | Cognition | Hippocampus[59], thalamus[12], raphe nuclei[141], cerebral cortex[141] | Hippocampus[12][60], raphe nuclei[141], cerebral cortex[141] |
| BPSD | Hippocampus[80] | Prefrontal cortex[12], hippocampus[12] | |