Agmatine, a metabolite of L-arginine, reverses scopolamine-induced learning and memory impairment in rats


UTKAN T., Gocmez S. S. , Regunathan S., ARICIOĞLU F.

PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR, cilt.102, sa.4, ss.578-584, 2012 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 102 Konu: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.pbb.2012.07.003
  • Dergi Adı: PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
  • Sayfa Sayıları: ss.578-584

Özet

Agmatine (1-amino-4-guanidino-butane), a metabolite of L-arginine through the action of arginine decarboxylase, is a novel neurotransmitter. In the present study, effects of agmatine on cognitive functions have been evaluated by using one trial step-down passive avoidance and three panel runway task. Agmatine (20, 40, 80 mg/kg i.p.) was administered either in the presence or absence of a cholinergic antagonist, scopolamine (1 mg/kg i.p.). Scopolamine significantly impaired learning and memory in both passive avoidance and three panel runway test. Agmatine did not affect emotional learning, working and reference memory but significantly improved scopolamine-induced impairment of learning and memory in a dose dependent manner. Our results indicate that agmatine, as an endogenous substance, may have an important role in modulation of learning and memory functions. (c) 2012 Elsevier Inc. All rights reserved.