Table 2.

Coexistence of NOS and ChAT in Colonic Myenteric Neurons

	Whole Colon (n = 12)	Ascending Colon (n = 6)	Descending Colon (n = 6)
NOS+/ChAT+	8.8% (228)	9.8% (128)	7.7% (100)
NOS+/ChAT–	41.7% (1083)	42.8% (558)	40.6% (525)
NOS–/ChAT+	47.7% (1237)	45.7% (595)	49.7% (642)
NOS–/ChAT–	1.8% (48)	1.7% (22)	2.0% (26)

Values are % (n). Combinations of the 2 functionally important markers, ChAT and NOS, defined 4 populations of neurons that did not differ in proportion between ascending colon (n = 6) and descending colon (n = 6).

ChAT, choline acetyltransferase; NOS, neuronal nitric oxide synthase.