Garcinia atroviridis (Clusiaceae) has been used as a postpartum medication agent in folkloric medicine. However, its biological potential has not been fully evaluated. The present study was aimed to evaluate the antioxidant efficacies, cholinesterase enzyme inhibitory and antimicrobial activity of the stem bark extracts of G. atroviridis. Successive extraction was done using solvents of varied ...

The genus Sarcococca is widely distributed in South-East Asia and it comprises 14 species. The genus is traditionally used for gastrointestinal ulcers, infections, pain and in rheumatic fevers. Recently, our group has derived a comprehensive SAR relationship picture for a new series of natural cholinesterase inhibitors isolated from Sarcococca saligna (syn. S. pruniformis, Buxaceae). The fracti...

The genus Sarcococca is widely distributed in South-East Asia and it comprises 14 species. The genus is traditionally used for gastrointestinal ulcers, infections, pain and in rheumatic fevers. Recently, our group has derived a comprehensive SAR relationship picture for a new series of natural cholinesterase inhibitors isolated from Sarcococca saligna (syn. S. pruniformis, Buxaceae). The fracti...

Alzheimer’s disease (AD) causes dementia and continuous damage to brain cells. Cholinesterase inhibitors can alleviate the condition by increasing communication between nerve cells reducing risk of dementia. In an effort treat disease, we synthesized flurbiprofen-based diamines (1,2 diaminoethane 1,3 diaminopropane) Zn(II), Cu(II) metal complexes characterized them single-crystal X-ray analysis...

Cholinesterase inhibitors are the class of compounds which inhibit cholinesterase enzyme. These are used as drugs for symptomatic treatment of Alzheimer’s disease (AD). The present study, evaluate anti-cholinesterase property of an aqueous extract of Mentha longifolia leaves, which is an aromatic plant traditionally used for several medicinal properties. Ellman’s method was used to determine th...

An enzyme purified from squid nerve that hydrolyzes the cholinesterase inhibitor diisopropyl phosphorofluoridate (DFP) has now been coupled to agarose beads. A column of this agarose-DFPase hydrolyzes the nerve gas 1,2,2-trimethylpropyl methylphosphonofluoridate (Soman). Although the more inhibitory of the four diastereoisomers of Soman are hydrolyzed least rapidly, a column of sufficient lengt...

The influence of ketamine upon human plasma cholinesterase (E.C. 3.1.1.8) was determined by means of a colorimetric assay technique at 25 degrees C, pH 7.7 with butyrylthiocholine as substrate. Ketamine caused a reversible inhibition of cholinesterase (pI50= 2.75; apparent Ki=4.94X10(-4) M). The kinetic analysis of the inhibitory action revealed a mixed competitive/non-competitive type of mecha...

In search of potent inhibitors cholinesterase enzymes and antioxidant agents, synthetic derivatives dihydroquinazolin-4(1H)-one 1-38 were evaluated as potential anti-Alzheimer agents through in vitro acetylcholinesterase (AChE) butyrylcholinesterase (BChE) inhibitions radical (DPPH ABTS) scavenging activities. The (SAR) was mainly based on the different substituents at aryl part which showed a ...

Diisopropyl fluorophosphate (DFP) has been shown to be a remarkably potent inhibitor of the enzymatic hydrolysis of acetylcholine (1). As a result of a wide survey (2), inhibition by dialkyl fluorophosphates appears to be specific for certain esterases and lipases (kidney acid phosphatase was found to be inhibited by relatively high concentrations). Since the cholinesterase of mammalian brain a...