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Structure-Activity Relationships and Drug Design01:28

Structure-Activity Relationships and Drug Design

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Adrenergic Agonists: Chemistry and Structure-Activity Relationship01:16

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Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine moiety with an aromatic ring and an ethylamine side chain.
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G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
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Quantitative Aspects of Drug-Receptor Interaction01:30

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The receptor occupancy theory connects a drug's response to the number of occupied receptors. With higher drug concentrations, more receptors are occupied, leading to increased responses. The formation of drug-receptor complexes involves association and dissociation rates, which reach equilibrium when the forward and backward reactions are equal. The equilibrium association constant (Ka) and its inverse, the equilibrium dissociation constant (Kd), indicate drug affinity. Higher Ka and lower...
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Drug Discovery: Overview01:26

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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Cholinergic agonists or cholinomimetics mimic the action of acetylcholine to stimulate the parasympathetic nervous system. They are categorized into direct-acting and indirect-acting agents. The direct-acting cholinergic drugs induce the parasympathetic response by directly binding to the muscarinic or nicotine receptors. In comparison, the indirect-acting cholinergic drugs prevent acetylcholine hydrolysis, indirectly contributing to the extended parasympathetic response.
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A Comparative Study on Selective PPAR Modulators through Quantitative Structure-activity Relationship, Pharmacophore

Ashis Nandy1, Kunal Roy2, Achintya Saha1

  • 1Department of Chemical Technology, University of Calcutta, 92 A.P.C Road, Kolkata 700 009 West Bengal, India.

Current Computer-Aided Drug Design
|June 10, 2017
PubMed
Summary
This summary is machine-generated.

This study explored structural requirements for selective Peroxisome proliferated activated receptor (PPAR) modulators. Key findings reveal specific molecular features influencing PPARα, PPARδ, and PPARγ activity for improved metabolic disorder treatments.

Keywords:
MLRPPARQSARdockingpharmacophore mappingstructure-activity.

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Area of Science:

  • Medicinal Chemistry
  • Computational Biology
  • Pharmacology

Background:

  • Metabolic syndrome, a cluster of metabolic disorders, is a leading cause of mortality.
  • Peroxisome proliferated activated receptor (PPAR) is a nuclear receptor crucial for regulating fat and glucose metabolism.

Purpose of the Study:

  • To investigate the structural prerequisites for developing selective PPAR modulators.
  • To guide the design of compounds targeting lipid and carbohydrate metabolism.

Main Methods:

  • Utilized multi-cheminformatics approaches, including quantitative structure-activity relationship (QSAR) studies.
  • Performed pharmacophore mapping and molecular docking simulations.
  • Analyzed a diverse set of PPAR modulators.

Main Results:

  • An amide fragment negatively impacts PPARα modulation, while an aliphatic ether linkage is beneficial.
  • An amide fragment positively influences PPARδ modulation.
  • Aliphatic ether linkages and substituted aromatic rings are vital for potent and selective PPARγ modulation, requiring hydrophobic features.
  • PPARδ and PPARα modulators necessitate negative ionizable (polar) features.

Conclusions:

  • Identified essential structural features for selective modulation of PPAR subtypes.
  • Provides insights for designing novel PPAR modulators with enhanced activity and selectivity.