Ultrastructure and molecular biological changes of chronic gastritis, gastric cancer and gastric precancerous lesions: a comparative study

Table 5 Gastric mucosa Zn, Cu, DNA, cAMP and SOD in CG and GC (x^-± s)

Group	n	Zn (WT%)	Cu (WT%)	DNA (IOD)	cAMP (pmol/g)	SOD (u/g)
NC	15	4.1 ± 1.0	5.2 ± 0.8	12.6 ± 2.7	15.9 ± 1.5	170.5 ± 6.1
CSG	68	2.8 ± 1.9b	4.0 ± 1.5a	15.2 ± 3.1b	14.6 ± 1.8b	163.3 ± 5.6b
CAG	64	2.0 ± 1.8bc	3.4 ± 1.5bd	16.5 ± 3.1bc	13.4 ± 1.8bc	161.2 ± 4.3bc
CA	36	1.5 ± 1.2bde	2.8 ± 0.9bde	30.7 ± 8.2bdf	10.2 ± 3.9bdf	152.2 ± 3.8bdf
IMIIb	8	1.7 ± 0.9b	3.5 ± 0.9b	27.3 ± 10.3b	11.9 ± 1.9b	150.0 ± 2.8b
TP++	13	2.7 ± 1.3bhi	4.4 ± 0.9ahi	23.5 ± 8.9bg	12.4 ± 1.8bg	161.5 ± 3.8aj
IM++ + ATP++	9	2.3 ± 1.5b	4.1 ± 0.9bh	25.1 ± 7.2b	12.0 ± 2.3b	152.2 ± 2.5bl
IM+++ + ATP++	8	1.5 ± 0.8bkm	2.9 ± 0.8bhin	28.5 ± 9.1b	10.4 ± 0.8bil	147.4 ± 2.6bhln