Age-related histomorphologic changes in the canine Gastrointestinal tract: A histologic and immunohistologic study

Table 6 Proliferation in the colon

Age (yr)	Proliferative length epithelium		Proliferating cells (n)
	Absolute(μm)	Relative(%)	Intercrypt lamina propria(/intercrypt space)	Lamina propriabelow crypts	Muscularis mucosa(/mm length)	Submucosa(/mm length)	Tunica muscularis(/mm length)
0.25	147.4	28.8	2.117	1.59	32.07	5.21	1.33
0.5	179.0	32.2	0.943	1.67	9.20	2.63	0.12
0.75	90.2	20.3	0.388	0.36	0.98	0.78	0.04
0.75	217.8	39.4	2.048	0.79	1.64	1.21	0.09
2	129.8	27.8	0.194	0.28	0.00	0.39	0.00
5	192.0	32.9	2.251	0.89	3.02	1.14	0.17
5	219.5	36.9	0.657	0.71	2.63	0.37	0.11
6	189.2	56.4	0.276	0.11	1.05	0.43	0.59
6	194.4	37.4	0.563	0.33	1.35	0.62	0.10
7	118.4	29.8	0.248	0.00	0.00	0.40	0.00
7	158.0	31.8	0.226	0.18	0.00	1.12	0.05
7	215.8	33.3	0.838	0.63	2.01	0.52	0.00
8.5	150.0	37.1	0.583	0.24	1.12	0.00	0.05
10	132.8	26.1	1.059	1.60	3.18	0.21	0.04
12	151.8	32.8	1.031	1.49	6.13	0.27	0.16
12	173.4	33.9	0.6519	0.55	1.84	0.29	0.00
13	132.8	26.1	0.000	0.33	1.79	0.85	0.20
13	163.6	25.5	0.817	0.29	0.66	0.24	0.02
14	138.2	30.9	0.831	0.37	3.27	0.00	0.00
17	234.0	39.4	0.329	0.40	0.00	0.18	0.00