A novel chalcone derivative as Nrf2 activator attenuates learning and memory impairment in a scopolamine-induced mouse model
摘要:
Alzheimer's disease is a common neurodegenerative disease characterized by progressive degeneration and neuronal cell death, resulting in neural network dysfunction. As the underlying mechanisms, oxidative damage and neuroinflammation have been reported to contribute to the onset and deterioration of Alzheimer's disease. The nuclear factor E2-related factor 2-antioxidant responsive element signaling pathway is a pivotal cellular defense mechanism against oxidative stress. Nrf2, a transcription factor, regulates the cellular redox balance and is primarily involved in anti-inflammatory responses. In this study, we synthesized novel chalcone derivatives and found a highly potent Nrt2 activator, compound 20a. Compound 20a confirmed to activate Nrf2 and induce expression of the Nrf2-dependent enzymes HO-1 and GCLC at both mRNA and protein levels. It also suppressed the production of nitric oxide and downregulated inflammatory mediators in BV-2 microglial cells. We found that compound 20a effectively increased the expression level and the activity of superoxide dismutase in both BV-2 microglial cells and brain hippocampus region of the scopolamine-induced mouse model. In addition, compound 20a effectively recovered the learning and memory impairment in a scopolamine-induced mouse model. (C) 2019 Elsevier Masson SAS. All rights reserved.
Discovery and Characterization of 6-{4-[3-(<i>R</i>)-2-Methylpyrrolidin-1-yl)propoxy]phenyl}-2<i>H</i>-pyridazin-3-one (CEP-26401, Irdabisant): A Potent, Selective Histamine H<sub>3</sub> Receptor Inverse Agonist
作者:Robert L. Hudkins、Rita Raddatz、Ming Tao、Joanne R. Mathiasen、Lisa D. Aimone、Nadine C. Becknell、Catherine P. Prouty、Lars J. S. Knutsen、Mehran Yazdanian、Gilbert Moachon、Mark A. Ator、John P. Mallamo、Michael J. Marino、Edward R. Bacon、Michael Williams
DOI:10.1021/jm200401v
日期:2011.7.14
pyridazin-3-one histamineH3receptor (H3R) antagonists/inverse agonists identified 6-4-[3-(R)-2-methylpyrrolidin-1-yl)propoxy]phenyl}-2H-pyridazin-3-one (8a, CEP-26401; irdabisant) as a lead candidate for potential use in the treatment of attentional and cognitive disorders. 8a had high affinity for both human (Ki = 2.0 nM) and rat (Ki = 7.2 nM) H3Rs with greater than 1000-fold selectivity over the hH1R
PHENYL-THIAZOLYL INHIBITORS OF PRO-MATRIX METALLOPROTEINASE ACTIVATION
申请人:JACKSON Paul Francis
公开号:US20120302569A1
公开(公告)日:2012-11-29
This invention relates to phenyl thiazole I and its therapeutic and prophylactic uses, wherein the variables R
z
, Q, J, R
1
, R
3
, R
5
, R
6
, and R
7
are defined in the specification. Disorders treated and/or prevented include rheumatoid arthritis.
1,3,5-trithian derivatives and pharmaceutical compositions
申请人:Nihon Nohyaku Co. Ltd.
公开号:US04816475A1
公开(公告)日:1989-03-28
An anti-arteriosclerotic or anti-hyperlipemic 1,3,5-trithiane derivative according to the formula (I): ##STR1## a pharmaceutical composition containing the same, and a process for producing the same.