Table 2.

Active transforming growth factor (aTGF)-β1 values (ng/ml) in diabetes-free and diabetes progressor mice at different weeks of age

Age (weeks)	4	8	12	16	20	24	28	32	36
Diabetes-free
Mean ± s.e.m.	0·34 ± 0·04	0·54 ± 0·04	0·38 ± 0·02	0·42 ± 0·02	0·41 ± 0·03	0·57 ± 0·04	0·58 ± 0·06	0·33 ± 0·03	0·29 ± 0·04
n	9	9	9	9	9	9	9	9	9
Diabetes progressors
Mean ± s.e.m.	0·51 ± 0·05	0·52 ± 0·03	0·50 ± 0·04	0·41 ± 0·04	0·30 ± 0·03	0·45 ± 0·04	0·36 ± 0·02
n	17	17	17	16	11	7	3
P (Mann–Whitney U-test)	0·02	0·70	0·04	0·33	0·05	0·11	0·06

s.e.m.: standard error of the mean.