2.9. Biopsy of normal and diabetic rats pancreas tissue
For the study and comparison of pancreas Langerhans islet betacells in streptozotocin-induced diabetic rats, and normal rats, pan-creatic biopsy of normal and diabetic rats were done and tissuesamples were fixed in 10% formalin, then were stained by Hema-toxylin & Eosin and finally were evaluated by Leitz microscope with400 times enlargement