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Sharma A.,Rayat Bahra Institute of Pharmacy | Piplani P.,University Institute of Pharmaceutical science
Central Nervous System Agents in Medicinal Chemistry

In view of the large libraries of acetylcholinesterase inhibitors (AChEIs) that are now being handled in organic synthesis, the identification of drug biological activity is advisable prior to synthesis and this can be achieved by employing predictive biological property methods. In this sense, Quantitative Structure-Activity Relationships (QSAR) or docking approaches have emerged as promising tools. The intention of this review is to summarize the present knowledge concerning computational predictions of AChEIs and AChE. © 2013 Bentham Science Publishers. Source

Prakash A.,Jawaharlal Institute of Postgraduate Medical Education & Research | Chopra K.,University Institute of Pharmaceutical science | Medhi B.,Jawaharlal Institute of Postgraduate Medical Education & Research
Indian Journal of Pharmacology

Introduction: The present study was designed to evaluate the effect of granulocyte-colony stimulating factor (G-CSF) in the treatment of Parkinson′s disease (PD), the second most common neurodegenerative disease characterized by muscle and movement disorder, often associated with depression. PD is very difficult to treat. Hence, the present study was aimed to evaluate the effect of G-CSF in PD associated with depression. Materials and Methods: Adult Wistar male rats weighing about 180-250 g were selected and divided into five groups in parallel designed method namely; control group (n = 5); sham operated group (n = 5); Vehicle group (n = 5); G-CSF group (70 μg/kg, s.c.) (n = 5) and L-DOPA group (n = 5). The rats were treated with 6-hydroxydopamine (6-OHDA) on day 0 and then treatment was continued for 14 day of L-DOPA/carbidopa, whereas G-CSF (70 μg/kg, s.c.) was given from day 1 to 6. Thereafter, adhesive removal and forced swim tests were conducted to evaluate the behavioral outcome of G-CSF treatment. The finding was correlated and analyzed with Nissl staining findings for the final conclusion. Results: The behavioral parameters were assessed and found to be ameliorate the symptoms of Parkinson′s and reduced the depression like behavior in PD. The histological findings were supported the behavioral findings and showed pathological improvement. Conclusion: As a preliminary work, the present study first time suggested that G-CSF have a potential role in PD and associated depression. Source

University Institute Of Pharmaceutical Science | Date: 2013-01-09

The present invention relates to a simple and convenient process for preparing solid lipid sustained release nanoparticles for delivery of drugs/vitamins, preferably fat soluble vitamins and more specifically Vitamin D

Gaur V.,University Institute of Pharmaceutical science | Kumar A.,University Institute of Pharmaceutical science
Brain Research

The present study has been designed to explore the nitric oxide mechanism in the protective effect of desipramine, venlafaxine and trazodone against I/R induced oxidative stress and mitochondrial dysfunction in mice. Vitamin E was taken as standard antioxidant. Laca mice (25-30 g) were subjected to twice BCCAO occlusion (5 min) at the interval of 10 min, followed by 96 h reperfusion. The drug treatments were started from the day of surgery and continued for the next four days. After 96 h the animals were sacrificed for biochemical (malondialdehyde, nitrite concentration, superoxidedismutase, catalase, redox ratio and GST) and mitochondrial enzyme complex (NADH dehydrogenase, succinate dehydrogenase, MTT assay and cytochrome c oxidase) estimations. Ischemia caused significant oxidative damage and mitochondrial enzyme dysfunction after 96 h of reperfusion as compared to sham operated animals. Antidepressant (desipramine, venlafaxine and trazodone) treatment significantly attenuated oxidative damage and restored mitochondrial enzyme complex activities as compared to control (I/R) group. Further, protective effects of desipramine (15 mg/kg) and/or venlafaxine (5 mg/kg) were attenuated by l-arginine (100 mg/kg) or sildenafil (5 mg/kg) pretreatment. Further, L-NAME (10 mg/kg) or 7-NI (10 mg/kg) pretreatment with desipramine (15 mg/kg) and/or venlafaxine (5 mg/kg) significantly potentiated their protective effect which was significant as compared to their effect alone. The present study highlights the involvement of nitric oxide mechanism in the protective effects of desipramine and venlafaxine against I/R induced oxidative stress and mitochondrial dysfunction in mice. © 2010 Elsevier B.V. All rights reserved. Source

Dhingra M.S.,University Institute of Pharmaceutical science | Dhingra S.,University of the West Indies | Chadha R.,University Institute of Pharmaceutical science | Singh T.,Panjab University | Karan M.,University Institute of Pharmaceutical science
Medicinal Chemistry Research

In our effort to identify the effective gastric sparing and protective anti-inflammatory agents, a series of gallic acid esters were synthesized, characterized, and studied to assess their physicochemical properties. Subsequently, the esters were evaluated for their anti-inflammatory activity and effect on gastric mucosa by most active compounds. All the compounds exhibited promising antiinflammatory activity in carrageenan-induced rat paw edema model. In particular, 7a, 7c, 7f, and 7h emerged as the most active compounds in the series. The findings of gastric ulcer and antioxidant studies suggested these compounds as non-ulcerogenic and gastroprotective. Further, the predicted ADME properties of all the tested compounds were found to be in the ranges as predicted by QikProp for 95 % of known oral drugs and also satisfy the Lipinski's rule of five. © Springer Science+Business Media New York 2014. Source

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