Recent advances in benzodiazepine receptor (BZR) binding studies

Author(s):  
S. P. Gupta
1992 ◽  
Vol 112 (11) ◽  
pp. 804-816 ◽  
Author(s):  
Yasuo SHIMOJI ◽  
Kuniyuki TOMITA ◽  
Toshio KARUBE ◽  
Toshiharu KAMIOKA

Bioanalysis ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 3369-3392 ◽  
Author(s):  
Hassan M Albishri ◽  
Sami El Deeb ◽  
Noura AlGarabli ◽  
Raghda AlAstal ◽  
Hassan A Alhazmi ◽  
...  

1991 ◽  
Vol 57 (4) ◽  
pp. 1128-1135 ◽  
Author(s):  
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Dietmar Hofmann ◽  
Hans-Jörg Födisch ◽  
Hanns Möhler ◽  
Michael Knapp ◽  
...  

2021 ◽  
Author(s):  
Rishi Kant ◽  
Suman Maji

The piperazine ring is an indispensable part of many biomolecules and can be easily modified through substitution on the ring nitrogen for desired application in pharmacology as well as metal binding studies.


2016 ◽  
Author(s):  
Xi-Ping Huang ◽  
Tao Che ◽  
Thomas J Mangano ◽  
Valerie Le Rouzic ◽  
Ying-Xian Pan ◽  
...  

ABSTRACTW-18 (1-(4-Nitrophenylethyl)piperidylidene-2-(4-chlorophenyl)sulfonamide)and W-15 (4-chloro-N-[1-(2-phenylethyl)-2-piperidinylidene]-benzenesulfonamide) represent two emerging drugs of abuse chemically related to the potent opioid agonist fentanyl (N-(1-(2-phenylethyl)-4-piperidinyl)-N-phenylpropanamide). Here we describe the comprehensive pharmacological profiles of W-18 and W-15. Although W-18 and W-15 have been described as having potent anti-nociceptive activity and are presumed to interact with opioid receptors, we found them to be without detectible opioid activity at μ, δ, κ and nociception opioid receptors in a variety of assays. We also tested W-18 and W-15 for activity as allosteric modulators at opioid receptors and found them devoid of significant positive or negative allosteric modulatory activity. Comprehensive profiling at essentially all the druggable G-protein coupled receptors in the human genome using the PRESTO-Tango platform revealed no significant activity. In silico predictions using the Similarity Ensemble Approach suggested activity for W-18 only weakly at H3-histamine receptors, which was not confirmed in radioligand binding studies. Weak activity at the sigma receptors and the peripheral benzodiazepine receptor were found for W-18 (Ki=271 nM); W-15 displayed weak antagonist activity at 5-HT2-family serotonin receptors. W-18 is extensively metabolized, but its metabolites also lack opioid activity. W-18 and W-15 did inhibit hERG binding suggesting possible cardiovascular side-effects with high doses. Thus although W-18 and W-15 have been suggested to be potent opioid agonists, our results reveal no significant activity at these or other known targets for psychoactive drugs.


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