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2013

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Full-Text Articles in Medicine and Health Sciences

Molecular Modeling And Sar Studies Of Cdk5/P25 Selective Inhibitors, Arindam Chatterjee Jan 2013

Molecular Modeling And Sar Studies Of Cdk5/P25 Selective Inhibitors, Arindam Chatterjee

Electronic Theses and Dissertations

Alzheimer's disease (AD) is one of the most dreaded forms of progressive neurodegenerative diseases. The two main hallmarks of AD are the formation of amyloid senile plaques and neurofibrillary tangles. Cyclin dependent kinase 5 (CDK5) is a proline directed serine/threonine kinase, which expressed primarily in the central nervous system. In the biochemical process the CDK5-natural activator, p35 is cleaved by calpain to a shorter protein p25, which in turn hyperphosphorylates Tau, forms neurofibrillary tangles and causes AD. CDK5 deregulation is also indicated in other neurodegenerative diseases, such as Huntington's chorea, stroke, Parkinson's disease, amyotrophic lateral sclerosis, major depression and substance …


Scaffold Perception, Compharmacophore Model Development, And Quantitative Structure-Affinity Relationships Of Sigma Site Ligands, David Enos Watson Jan 2013

Scaffold Perception, Compharmacophore Model Development, And Quantitative Structure-Affinity Relationships Of Sigma Site Ligands, David Enos Watson

Electronic Theses and Dissertations

Sigma receptors are endogenous proteins with potential utility in treating psychological disorders, ischemia, the psychological and convulsive effects of drugs of abuse, and as an imaging agent for cancerous tissues, among others. Drug design efforts targeting these receptors have been hindered by a lack of structural information of the receptors themselves. Traditional ligand-based approaches have succeeded in generating many compounds with high affinity, and quite a few with selectivity for σ-1 receptors. There are few selective ligands for use as pharmacological probes for the σ-2 receptor. Much effort has gone into exploring the structure activity relationships of ligands targeting these …