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Table 3 Effect of hydroalcholic extract of N. sativa on the number of islets and the number of islet cells and islets diameter (μm) in pancreatic tissues in rats

From: RETRACTED ARTICLE: Protective and antidiabetic effects of extract from Nigella sativa on blood glucose concentrations against streptozotocin (STZ)-induced diabetic in rats: an experimental study with histopathological evaluation

Groups Treatment groups* Islets Cells Islets diameter (μm)
 1 Control 19.2 ± 4.9 d 120.4 ± 24.6 d 102.8 ± 11.8 d
 2 STZ 5 ± 1.4 a 42 ± 7.3 a 51.8 ± 16.3 a
 3 STZ+ NS 5 mg/kg b.w 13.6 ± 4.5 g e 85.6 ± 19.4 c e 84.4 ± 21.5 g f
 4 STZ+ NS 10 mg/kg b.w 6 ± 1.5 a h 47.6 ± 14.1 a h 63.4 ± 13.5 b h
 5 STZ+ NS 20 mg/kg b.w 5.4 ± 1.1 a h 49.2 ± 14.1 a h 57.2 ± 12 b h
  1. * Values are means ± SD (n5). a p 0.001 comparison to control; b p 0.01 comparison to control; c p 0.05 comparison to control; d p 0.001 comparison to STZ; e p 0.01 comparison to STZ; f p 0.05 comparison to STZ; g not significant comparison to control; h not significant comparison to STZ. The data were analyzed using One-way-ANOVA analysis and Tukey’s post hoc test.