نتایج جستجو برای: cox 2
تعداد نتایج: 2552374 فیلتر نتایج به سال:
چکیده: تمایز سلول های بنیادی به رده سلولی ویژه در حضور محرکهای ویژه ای با آسیب های سلولی و مولکولی همراه می شود. تمایز سلول های بنیادی مزانشیمی نیز به هپاتوسیتهای فعال به فاکتورهای تنظیمی ویژه ای وابسته می باشد. هدف از مطالعه حاضر بررسی نقش p53 و cox-2 در تنظیم بیان هم و تولید محصولات حاصل از اکسیداسیون لیپید و پروتئین در طی تمایز سلول های بنیادی مزانشیمی مشتق از خون بند ناف به هپاتوسیتها می ب...
non-steroidal anti-inflammatory drugs (nsaids) are the competitive inhibitors of cyclooxygenase (cox), the enzyme which mediates the bioconversion of arachidonic acid to inflammatory prostaglandins (pgs). their use is associated with the side effects such as gastrointestinal and renal toxicity. the therapeutic anti-inflammatory action of nsaids is produced by the inhibition of cox-2, while the ...
a new group of 4-(imidazolylmethyl) quinoline derivatives possessing a methylsulfonyl cox-2 pharmacophore at the para position of the c-2 phenyl ring were designed and synthesized as selective cox-2 inhibitors and in-vitro anti breast cancer agents. in-vitro cox-1 and cox-2 inhibition studies showed that all the compounds were potent and selective inhibitors of the cox-2 isozyme with ic50 value...
Design of selective cyclooxygenase-2 (COX-2) inhibitors is still a challenging task because of active site similarities between COX isoenzymes. To help with this issue, we tried to generate a 3D-QSAR (3 dimensional quantitative structure activity relationship) model that might reflect the essential features of COX-2 active sites. Compounds in a series of resveratrol derivatives inhibitors with ...
Colorectal cancer is one of the most common cancers in the world. Various factors are involved in the development and progression of this disease. One of these agents is cyclooxygenase-2 (COX-2). COX-2 is a product of the PTGS2 gene and converts free arachidonic acid to prostaglandins. COX-2 is not naturally expressed in most normal cells. Noticeably, the increased expression of COX-2 has been ...
A group of regioisomeric 5-oxo-1,4,5,6,7,8 hexahydroquinoline derivatives possessing a COX-2 SO2Me pharmacophore at the para position of the C-2 or C-4 phenyl ring, in conjunction with a C-4 or C-2 phenyl (4-H) or substituted-phenyl ring (4-F,4-Cl,4-Br,4-OMe,4-Me, 4-NO2), were designed for evaluation as selective cyclooxygenase-2 (COX-2) inhibitors. These target 5-oxo-1,4,5,6,7,8 hexahydroquino...
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