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

Control

19.2 ± 4.9 ^d

120.4 ± 24.6 ^d

102.8 ± 11.8 ^d

STZ

5 ± 1.4 ^a

42 ± 7.3 ^a

51.8 ± 16.3 ^a

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}

STZ+ NS 10 mg/kg b.w

6 ± 1.5 ^{a h}

47.6 ± 14.1 ^{a h}

63.4 ± 13.5 ^{b h}

STZ+ NS 20 mg/kg b.w

5.4 ± 1.1 ^{a h}

49.2 ± 14.1 ^{a h}

57.2 ± 12 ^{b h}