Table 1.

Summary incidence table of lesions in control and STZ-induced diabetic rat cerebellum.

	Control	2nd week	4th week	6th week	8th week	10th week	12th week
Ballooning of purkinje cell	−	++	++	++	++	++	++
Chromatolysis	−	++	++	+++	++++	++++	++++
Vacuolation	−	−	++	++	+++	+++	++++
Necrosis/Apoptosis	−	++	++	+++	+++	++++	++++
Pyknosis/Dark purkinje cell	−	++	++	+++	+++	++++	++++
Gliosis	−	+	++	++	+++	++++	++++
Neuronophagia	−	−	++	++	+++	++++	++++

−, Nil (less than 5%); +, minimal (5–10%); ++, mild (10–20%); +++, moderate (20–30%); ++++, severe (more than 30%).