PMID- 28241130 OWN - NLM STAT- MEDLINE DCOM- 20170426 LR - 20210913 IS - 1423-0224 (Electronic) IS - 0302-282X (Linking) VI - 74 IP - 2 DP - 2016 TI - Nardostachys jatamansi Targets BDNF-TrkB to Alleviate Ketamine-Induced Schizophrenia-Like Symptoms in Rats. PG - 104-114 LID - 10.1159/000454985 [doi] AB - OBJECTIVE: Schizophrenia, a common neurological disorder appearing in the late teens or early adulthood, is characterized by disorganized thinking, behaviour, and perception of emotions. Aberrant N-methyl-D-aspartate (NMDA) receptor-mediated synaptic plasticity is a major pathological event here due to dysfunction of dopamine and glutamate transmission at NMDA receptors. De-regulated brain-derived neurotrophic factor (BDNF), i.e., its signalling through the tropomyosin receptor kinase B (TrkB) receptor, is a major feature of schizophrenia. With recent global awareness of traditional plant medicines in reducing side effects, the aim of our study was to evaluate the efficacy of the ethanolic root extract of a herb belonging to the Valerianacea family, Nardostachys jatamansi, against ketamine-induced schizophrenia-like model in rats. METHODS: The effect of the N. jatamansi drug (oral dosage of 500 mg/kg body weight for 14 days) in ketamine-administered male Wistar albino rats (30 mg/kg body weight for 5 days) on modulating behaviour and the level of neurotransmitters like dopamine and glutamate was studied in whole-brain homogenates, and its influence on BDNF and TrkB levels in 2 relevant brain regions, the hippocampus and prefrontal cortex, was assessed. RESULTS: We observed that N. jatamansi treatment exhibited encouraging results in the modulation of ketamine-induced schizophrenia-like behaviours, principally the positive symptoms. Our drug both significantly upregulated the glutamate level and downregulated the dopamine level in whole-brain homogenates and retained the normal levels of BDNF (in the hippocampus but not in the prefrontal cortex) and TrkB (in both hippocampus and prefrontal cortex) induced by ketamine in rats. CONCLUSION: These findings suggest a neuroprotective effect of the ethanolic root extract of N. jatamansi against ketamine-induced schizophrenia-like symptoms in rats; possibly, regarding its effect on TrkB signalling. Further research is warranted in the treatment of schizophrenic symptoms. CI - (c) 2017 S. Karger AG, Basel. FAU - Janardhanan, Anjali AU - Janardhanan A AD - Department of Biochemistry, University of Madras, Chennai, India. FAU - Sadanand, Anjana AU - Sadanand A FAU - Vanisree, Arambakkam Janardhanam AU - Vanisree AJ LA - eng PT - Journal Article PT - Retracted Publication DEP - 20170228 PL - Switzerland TA - Neuropsychobiology JT - Neuropsychobiology JID - 7512895 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Plant Extracts) RN - 3KX376GY7L (Glutamic Acid) RN - 690G0D6V8H (Ketamine) RN - EC 2.7.10.1 (Receptor, trkB) RN - VTD58H1Z2X (Dopamine) SB - IM RIN - Neuropsychobiology. 2022;81(1):83. PMID: 34517371 MH - Animals MH - Behavior, Animal/drug effects MH - Brain/metabolism MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Disease Models, Animal MH - Dopamine/metabolism MH - Glutamic Acid/metabolism MH - Ketamine MH - Male MH - Nardostachys/*chemistry MH - Phytotherapy/*methods MH - Plant Extracts/chemistry/*therapeutic use MH - Plant Roots/chemistry MH - Rats MH - Receptor, trkB/*metabolism MH - Schizophrenia/chemically induced/*drug therapy/*metabolism EDAT- 2017/02/28 06:00 MHDA- 2017/04/27 06:00 CRDT- 2017/02/28 06:00 PHST- 2016/01/23 00:00 [received] PHST- 2016/12/07 00:00 [accepted] PHST- 2017/02/28 06:00 [pubmed] PHST- 2017/04/27 06:00 [medline] PHST- 2017/02/28 06:00 [entrez] AID - 000454985 [pii] AID - 10.1159/000454985 [doi] PST - ppublish SO - Neuropsychobiology. 2016;74(2):104-114. doi: 10.1159/000454985. Epub 2017 Feb 28.