title: Effect of poly herbal formulation, EuMil, on neurochemical perturbations induced by chronic stress.
abstract: EuMil, a polyherbal formulation consisting of standardised extracts of Withania somnifera (L) Dunal, Ocimum sanctum L, Asparagus racemosus Wilid and Emblica officinalis Gaertn., is used as an anti-stress agent to attenuate the various aspects of stress related disorders. In the present study, the neurochemical mechanisms underlying the anti-stress activity of EuMil were evaluated by measuring the rat brain monoamine neurotransmitter levels and tribulin activity. Chronic electroshock stress (14 days) significantly decreased the nor-adrenaline (NA) and dopamine (DA) levels in frontal Cortex, pons-medulla, hypothalamus, hippocampus and striatal, hypothalamal region, respectively, and increased the 5-hydroxytryptamine (5HT) level in frontal cortex, pons medulla, hypothalamus and hippocampus. Chronic stress, also increased the rat brain tribulin activity. EuMil (100 mg/kg, p.o., 14 days) treatment normalized the perturbed regional NA, DA, 5HT concentrations, induced by chronic stress. EuMil also significantly attenuated the stress-induced increase in the rat brain tribulin activity. The amelioration of chronic stress-induced neurochemical perturbations by EuMil explains the neurochemical mechanisms underlying the observed putative anti-stress activity of the product.
authors.affiliation: Neuropharmacology Laboratory, Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221 005, India.
authors.forename: A
authors.initials: A
authors.lastname: Bhattacharya
authors.forename: A V
authors.initials: AV
authors.lastname: Muruganandam
authors.forename: Vikas
authors.initials: V
authors.lastname: Kumar
authors.forename: S K
authors.initials: SK
authors.lastname: Bhattacharya
mesh_terms: D000818:Animals; D002908:Chronic Disease; D029001:Herbal Medicine; D008297:Male; D018377:Neurotransmitter Agents / Q000378:metabolism*; D051381:Rats; D017208:Rats, Wistar; D013312:Stress, Physiological / Q000378:metabolism* / Q000503:physiopathology
chemical_list: D018377:Neurotransmitter Agents