Publications by authors named "Asmita Gajbhiye"

A very common reaction, -benzylation of isatoic anhydride in the presence of sodium hydride base, produces byproducts. The yield of one of the byproducts was greater than that of the desired product; therefore, we identified the anonymous undisclosed structure of the byproduct using sequential spectroscopy methods and SC-XRD. This byproduct was found to be effective as a wound-healing and anti-inflammatory agent.

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Purpose Of The Study: Heme is the cardinal porphyrin in systemic physiology, apart from hemoglobin it forms structural skeleton of physiological antioxidants such as catalase and peroxidases.

Aim: The current study presents evidence that iron chelated pheophytin (Fe-Ph-I) created in resemblance to heme can exert significant heme-mimetic efficacy in mitigating oxidative stress-induced cellular and vascular damage.

Materials And Methods: Fe-Ph-I was synthesized by incorporating ferrous ion into the porphyrin core of Ph-I moiety.

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Conventional anti-diabetes agents exhibit some undesirable side effects. Recently, lactic acidosis and/or bladder cancer were also reported with the use of these agents. Hence, there is an urgent need for alternative anti-diabetes in order to reduce/avoid the unwanted effects.

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Sodium hydride, potassium carbonate, and other bases are commonly used for -alkylation of heterocyclic compounds. This report reveals the problems associated with -benzylation of isatoic anhydride and identifies the plausible byproduct structures formed during the reaction. Subsequently, a novel breakthrough methodology has been developed using diisopropylamine and tetra butyl ammonium bromide.

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Objective: In the current study, the synthesis, characterization, and neuropharmacology of quinazolinone tethered with aromatic (3a-3i) and heteroaromatic substitution (3j, 3k, and 3l) as effective anxiolytic agents are reported.

Background: Anxiety and depression are often comorbid with neurological as well as other medical maladies. Clinically known anxiolytics (Benzodiazepines) are accompanied by untoward sedation and other CNS depressive actions.

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Aim: Inflammatory algesia and pyresia are common pathological consequences of physiological defense. Phenacetin introduced as effective analgesic anti-pyretic agent, was proscribed from therapeutic use because of associated systemic toxicity. The aim of the study was to evaluate the potency of 1,2,3-triazole conjugation in reducing toxicity and increasing efficacy of the phenacetin nucleus.

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Present study focused on the evaluation of aqueous extract of Sida cordifolia (AESC), and its different fractions; hexane (HFSC), chloroform (CFSC) and aqueous (AFSC), against rotenone induced biochemical, neurochemical, histopathological and behavioral alterations in a rat model of Parkinson's disease (PD). An estimation of the level of thiobarbituric acid reactive substances (TBARS), glutathione (GSH) and catalase (CAT) along with superoxide anion generation (SAG) in different brain regions (cortex, midbrain and cerebellum) was carried out to assess biochemical changes. Behavioral evaluation tests (catalepsy, rearing behavior and posture instability) and neurochemical estimations (norepinephrine, dopamine and serotonin level) along with histopathological evaluations of different brain regions were also performed.

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Andrographis paniculata is a medicinal herb used extensively for various ailments and contains therapeutically active phytoconstituent, andrographolide (AN). Although hepatoprotective activity of AN is established, but their bioavailability is restricted due to its rapid clearance. The aim of this study, therefore, was to formulate AN herbosomes (ANH) through complexation with naturally occurring soya-phosphatidylcholine (SPC), in order to enhance absorption.

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Context: Fatty liver is the first stage of alcoholic damage which is reversible with abstinence from alcohol. Mangiferin (MF) showed potent scavenging activity on diphenyl-1-picrylhydrazyl radicals which stimulate liver regeneration in various liver injuries.

Objective: Although, MF shows hepatoprotection against various liver disorders but due to rapid clearance and limited solubility in lipoid environment, there is problem of its poor absorption from intestine hence poor bioavailability.

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The aim of present study is to predict the probable nootropic activity of novel nicotine analogues with the help of computer program, PASS (prediction of activity spectra for substances) and evaluate the same. Two compounds from differently substituted pyridines were selected for synthesis and evaluation of nootropic activity based on their high probable activity (Pa) value predicted by PASS computer program. Evaluation of nootropic activity of compounds after acute and chronic treatment was done with transfer latency (TL) and step down latency (SDL) methods which showed significant nootropic activity.

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The mesophasic microreservoir comprises lyotrophic liquid crystals. The liquid crystals were prepared of Brij-35, cetosteryl alcohol and propranolol and evaluated for parameters viz. anisotropy, size and size distribution and drug entrapment efficiency.

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A series of the title compounds were synthesized and characterized by spectral data. All the compounds were evaluated for in vitro antihistaminic activity by inhibition of isotonic contractions induced by histamine on isolated guinea pig ileum and the compound 6-k showed significant activity. A few compounds have also been screened for in vivo bronchodilatory activity.

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