Images of comets of DNA damage categories in pancreatic tissue of dogs in (A) Negative contro group (non diabetic, not treated). (B) Positive control group (diabetic, saline treated) induced by alloxan–nicotinamide. (C) Ginger ethanolic extract (EE) group (diabetic, treated with 81.7 mg/kg BW GEE for 6 weeks). (D) GEE-chitosan nanoparticles (GEE-CNPs) group (diabetic, treated with 81.7 mg/kg BW GEE-CNPs) for 6 weeks) group. (E) CNPs group (diabetic, treated with 81.7 mg/kg BW CNPs).