Increased Nociceptive Responses in Streptozotocin-Induced Diabetic Rats and the Related Expression of Spinal NR2B Subunit of -Methyl-D-Aspartate Receptors oleh Che Aishah Nazariah Ismail, Rapeah Suppian, Che Badariah Abd Aziz, Khalilah Haris, Idris Long