Skip to main content
. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Pharm Res. 2013 Jun 21;30(11):2843–2854. doi: 10.1007/s11095-013-1112-6

Table V.

Blinded examination of the insulin-stained section of pancreas (mean number of islets with Insulin per sectiona), Group (Gr) descriptions are in Table I. Groups that received EGFRA have significantly less insulin compared to the diabetic control.

Group Gr 1 Gr 2 Gr 4 Gr 5 Gr 6 Gr 7
Insulin Islet Score a; 0–4, mean 4.0 3.0 2.50 3.73 3.70 3.6
SEM 0.0 0.24 0.19 0.12 0.24 0.21
p value versus Gr 2 0.0003 ----- 0.1136 0.0111 b 0.0486 b 0.0703 c
a

Three sections per animal of at least 200um apart and 5 animals/group (15 sections) were stained with H&E and adjacent sections were stained for insulin. Insulin Scoring System: 0=no staining, 1=<50% β-cells staining in an individual islet, 2=50–75% β-cells staining, 3=75–90% β-cells staining, 4=>90% β-cells staining.

b

Omeprazole treatment and Omeprazole+PGC-HBEGF have significantly higher insulin scores compared to the Gr 2 control.

c

Power analysis of the difference between Gr 2 and Gr 7 of 0.6 (with average standard deviation of 0.8 (0.21SEM*151/2)) indicates that we need at least 30 sections to rule out lack of significance with power of 80% and we only analyzed 15 sections. In other words, treatment with additional gastrin may have reduced the insulin content of the islet β-cells contributing to loss of analytical resolution.