Effect of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide on cognitive deficits and hippocampal plasticity during nicotine withdrawal in rats.
Withdrawal from chronic nicotine has damaging effects on a variety of learning and memory tasks. Various Sulfonamides that act as carbonic anhydrase inhibitors have documented role in modulation of various cognitive, learning, and memory processing. We investigated the effects of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide (4-FBS) on nicotine withdrawal impairments in rats using Morris water maze (MWM), Novel object recognition, Passive avoidance, and open field tasks. Also, Brain-derived neurotrophic factor (BDNF) profiling and in vivo field potential recording were assessed. Rats were exposed to saline or chronic nicotine 3.8 mg/kg subcutaneously for 14 days in four divided doses, spontaneous nicotine withdrawal was induced by quitting nicotine for 72 h (hrs). Animals received 4-FBS at 20, 40, and 60 mg/kg after 72 h of withdrawal in various behavioral and electrophysiological paradigms. Nicotine withdrawal causes a deficit in learning and long-term memory in the MWM task. No significant difference was found in novel object recognition tasks among all groups while in passive avoidance task nicotine withdrawal resulted in a deficit of hippocampus-dependent fear learning. Anxiety like behavior was observed during nicotine withdrawal. Plasma BDNF level was reduced during nicotine withdrawal as compared to the saline group reflecting mild cognitive impairment, stress, and depression. Withdrawal from chronic nicotine altered hippocampal plasticity, caused suppression of long-term potentiation (LTP) in the CA1 area of the hippocampus. Our results showed that 4-FBS at 40 and 60 mg/kg significantly prevented nicotine withdrawal-induced cognitive deficits in behavioral as well as electrophysiological studies. 4-FBS at 60 mg/kg upsurge nicotine withdrawal-induced decrease in plasma BDNF. We conclude that 4-FBS at 40 and 60 mg /kg effectively prevented chronic nicotine withdrawal-induced impairment in long term potentiation and cognitive performance.
['Rehman|Naeem Ur|NU|', 'Esmaeilpour|Khadijeh|K|', 'Joushi|Sara|S|', 'Abbas|Muzaffar|M|', 'Al-Rashida|Mariya|M|', 'Rauf|Khalid|K|', 'Masoumi-Ardakani|Yaser|Y|']
D000818:Animals D001007:Anxiety D001362:Avoidance Learning D001522:Behavior, Animal D019208:Brain-Derived Neurotrophic Factor D003072:Cognition Disorders D004305:Dose-Response Relationship, Drug D005239:Fear D006624:Hippocampus D017774:Long-Term Potentiation D008297:Male D018782:Maze Learning D009473:Neuronal Plasticity D009538:Nicotine D051381:Rats D017208:Rats, Wistar D013375:Substance Withdrawal Syndrome D014029:Tobacco Use Disorder
4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide Nicotine withdrawal Learning and memory Anxiety Plasma BDNF LTP