U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 2631 - 2640 of 4716 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone or nicotine-derived nitrosamine ketone (NNK) is a tobacco-specific nitrosamine. NNK is considered to be a carcinogen. NNK induces deleterious mutations in oncogenes and tumor suppression genes by forming DNA adducts, which could be considered as tumor initiation. Meanwhile, the binding of NNK to the nicotinic acetylcholine receptor promotes tumor growth by enhancing and deregulating cell proliferation, survival, migration, and invasion, thereby creating a microenvironment for tumor growth.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Theaflavin is a black tea polyphenol, which possesses a wide variety of pharmacological properties including potent antioxidative, anti-apoptotic, anti-cancer and anti-inflammatory effects. Theaflavin (TF-1) can bind to, and inhibit the purified 20S proteasome, accompanied by suppression of tumour cell proliferation, suggesting that the tumour proteasome is an important target whose inhibition is at least partially responsible for the anticancer effects of black tea. Theaflavin is a potent inhibitor of interleukin-8 gene expression in vitro. The proximal mechanism of this effect involves, in part, inhibition of IkappaB kinase activation and activator protein-1 pathway. Theaflavin has been known to possess neuroprotective effects against ischemia, Alzheimer's disease and other neurodegenerative disorders.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Showing 2631 - 2640 of 4716 results