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. 1996 Oct 15;16(20):6490–6503. doi: 10.1523/JNEUROSCI.16-20-06490.1996

Table 1.

Relationship among 5HT, MOR1, and FG neurons

Rat Cells counted within NRM
FG FG+MOR1 FG+5HT FG+MOR1 +5HT
AK 71 53 15 (8) 11 6 (3)
AK 72 49 16 (15) 16 9 (5)
AK 73 31 10 (7) 10 2 (7)
Total 133 41 (30) 37 17 (15)

Relationships among RVM neurons retrogradely labeled from the dorsal spinal cord and immunocytochemically labeled for 5HT and/or MOR1. Table shows the number of retrogradely labeled cells counted in three sections from each of three rats. FG, Number of cells retrogradely labeled with FG; FG+MOR1, number of cells double-labeled for FG and MOR1-ir; FG+5HT, number of cells double-labeled for FG and 5HT-ir; FG+MOR1+5HT, number of cells triple-labeled for FG, MOR1-ir, and 5HT-ir. Numbers in parentheses are the number of ambiguous cases, about which no determination could be made.