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

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Showing 4431 - 4440 of 4705 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

ML-9 is a selective inhibitor of MYLK and CaMK that acts by delaying MYLK phosphorylation through binding at or near the ATP binding site. This naphthalenesulfonamide derivative has been shown to inhibit insulin-stimulated 2-deoxyglucose transport (IC50 = 27 μM), PP-1 activation in adipocytes, PKA, Akt1 (PKB) and Rsk (S6 kinase). ML-9 was also observed to disrupt microfilament bundles with accompanying decrease in P32 incorporation in rat astrocytes. Carbachol illicited cationic currents were inhibitied with ML-9 (IC50 = 7.8 uM) in HEK293 cells. ML-9 has also demonstrated to inhibit natural killer cell lytic acitivity by regulating microfilament contraction as well as catecholamine secretion in intact and permeabilized chromaffin cells. In addition, agonist-induced Ca2+ entry into endothelial cells was completely abolished in the presence of ML-9. ML-9 was found to be a new type of vascular relaxant. ML-9 produced the relaxation of vascular strips contracted by high K+. The relaxation induced by this compound was not affected by treatment with adrenergic and cholinergic blocking agents. Thus, the ML-9-induced relaxation is not due to a block of membrane receptor-associated mechanisms; rather it has an effect on more basic and common events in smooth muscle contraction. Moreover, ML-9 inhibited the Ca2+-induced contraction in chemically skinned vascular smooth muscle cells, suggesting that ML-9 is not a “calcium channel blocker.”
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Conditions:

Narceine methyl ester and narceine are potent alkaloids which were isolated from Corydalis longipes were found effective in vitro at very low concentration, i.e., 100~500 ppm against spore germination of some test plant pathogenic fungi (Alternaria solani, A. tagetica, Cercospora abelmoschi, Curvularia maculans, Erysiphe cichoracearum, E. pisi, Fusarium udum, Helminthosporium oryzae, H. penniseti, Ustilago cynodontis). George Bell Frankforter was the first person to isolate narceine (in 1893) during his Ph.D. research for August Hofmann at the University of Berlin. Narceine has a weak morphine-like action, but is not much used in medicine. It may be administered in a pill, as a mild hypnotic and to allay cough; it is less depressant than morphine and does not constipate. Ethylnarceine is a narcotic, analgesic, and antitussive.

Showing 4431 - 4440 of 4705 results