PMID- 25547373 OWN - NLM STAT- MEDLINE DCOM- 20151204 LR - 20181113 IS - 1432-1912 (Electronic) IS - 0028-1298 (Linking) VI - 388 IP - 3 DP - 2015 Mar TI - Synergistic effects of GSK-3beta and HDAC inhibitors in intracerebroventricular streptozotocin-induced cognitive deficits in rats. PG - 337-49 LID - 10.1007/s00210-014-1081-2 [doi] AB - Recent studies suggest the importance of combined treatment of glycogen synthase kinase-3beta (GSK-3beta) and histone deacetylase (HDAC) inhibition in various in vitro and in vivo models of neurological diseases. Lithium chloride (LiCl) and valproate (VPA), two well-known mood stabilizers, have been reported to act through GSK-3beta and HDAC inhibition, respectively. The present study was designed to investigate the potential of low-dose combination of LiCl and VPA in intracerebroventricular streptozotocin (ICV-STZ)-induced cognitive deficits in rats. STZ was injected twice (3 mg/kg ICV) on alternate days (day 1 and day 3) in rats. The ICV-STZ-treated rats received LiCl (60 mg/kg, i.p.), VPA (200 mg/kg, i.p.), and combination of both LiCl (60 mg/kg, i.p.) and VPA (200 mg/kg, i.p.) drugs for a period of 3 weeks. The ICV-STZ administration results in significant memory impairment, elevated oxidative-nitrosative stress, and reduced brain-derived neurotrophic factor (BDNF) levels. Using a battery of behavioral and biochemical tests, we observed that co-treatment of both drugs showed synergistic effect in improving the spatial learning and memory impairment as well as significantly attenuated the oxidative stress markers in STZ-treated rats as compared to either drug alone. Moreover, the combination of both drugs reversed the hyperinsulinemic brain condition and improved the BDNF levels in STZ-treated rats. Based upon these results, it could be suggested that a low-dose combination of LiCl and VPA produces synergistic and more consistent neuroprotective effects in ICV-STZ-induced cognitive deficits in rats. FAU - Sharma, Sorabh AU - Sharma S AD - Department of Pharmacy, Birla Institute of Technology and Science, Pilani, 333031, Rajasthan, India. FAU - Taliyan, Rajeev AU - Taliyan R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141231 PL - Germany TA - Naunyn Schmiedebergs Arch Pharmacol JT - Naunyn-Schmiedeberg's archives of pharmacology JID - 0326264 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Histone Deacetylase Inhibitors) RN - 0 (Insulin) RN - 0 (Neuroprotective Agents) RN - 0 (Nitrates) RN - 0 (Nitrites) RN - 4Y8F71G49Q (Malondialdehyde) RN - 5W494URQ81 (Streptozocin) RN - 614OI1Z5WI (Valproic Acid) RN - EC 2.7.11.26 (Glycogen Synthase Kinase 3) RN - EC 3.1.1.7 (Acetylcholinesterase) RN - G4962QA067 (Lithium Chloride) RN - GAN16C9B8O (Glutathione) SB - IM MH - Acetylcholinesterase/metabolism MH - Animals MH - Avoidance Learning/drug effects MH - Brain/drug effects/metabolism/pathology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cognition Disorders/chemically induced/*drug therapy/metabolism/pathology MH - Drug Synergism MH - Drug Therapy, Combination MH - Glutathione/metabolism MH - Glycogen Synthase Kinase 3/*antagonists & inhibitors/metabolism MH - Histone Deacetylase Inhibitors/*therapeutic use MH - Insulin/metabolism MH - Lithium Chloride/*therapeutic use MH - Malondialdehyde/metabolism MH - Memory/drug effects MH - Memory Disorders/chemically induced/*drug therapy/metabolism/pathology MH - Neuroprotective Agents/*therapeutic use MH - Nitrates/metabolism MH - Nitrites/metabolism MH - Rats, Wistar MH - Spatial Learning/drug effects MH - Streptozocin MH - Valproic Acid/*therapeutic use EDAT- 2014/12/31 06:00 MHDA- 2015/12/15 06:00 CRDT- 2014/12/31 06:00 PHST- 2014/08/07 00:00 [received] PHST- 2014/12/12 00:00 [accepted] PHST- 2014/12/31 06:00 [entrez] PHST- 2014/12/31 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] AID - 10.1007/s00210-014-1081-2 [doi] PST - ppublish SO - Naunyn Schmiedebergs Arch Pharmacol. 2015 Mar;388(3):337-49. doi: 10.1007/s00210-014-1081-2. Epub 2014 Dec 31.