Phasic and Tonic Smooth Muscle Function of the Partially Obstructed Guinea Pig Intestine

Table 1

Layer thickness related to duration of obstruction (μm).

Groups	Mucosa	Submucosa	Circumferential muscle	Longitudinal muscle
Normal	861.1±134.3	42.9±11.2	79.3±24.1	36.2±7.5
Sham-obstructed	816.2±118.3	35.5±12.6	90.4±15.1	37.8±8.8
Obstructed for 2 days	905.3±109.9	45.3±11.8	107.3±31.4	37.4±9.5
Obstructed for 4 days	1001.1±135.9	34.5±8.5	116.5±42.3 *	42.3±15.3 *
Obstructed for 7 days	992.7±91.6	55.7±9.9 *	145.5±57.9 *	57.9±10.6 *
Obstructed for 14 days	1028.1±167.2	71.8±18.7 **	240.2±80.7 **	80.7±28.9 **

* 𝑃<0.05; **𝑃<0.01 (compared with normal and sham-obstructed groups).