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

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Showing 1521 - 1530 of 4227 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

LY-334370 is a selective agonist at the serotonin 1F receptor. Lilly had been conducting phase II clinical testing of this compound in Europe as a potential therapy for migraine headaches. Lilly has now announced that it has discontinued commercial development of LY 334370 as a result of a review of data from an ongoing animal toxicology study. It was reported that the compound causes G-protein activation that is mediated by 5-HT1A receptors.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Epilactose (4-O-beta-galactopyranosyl-D-mannnose) is a rare disaccharide in cow milk that can be synthesized from lactose by the cellobiose 2-epimerase of Ruminococcus albus. Epilactose is a promising prebiotic. Dietary supplementation with epilactose (4.5%) increased cecal wall weight and cecal contents and decreased the pH of the cecal contents in Wistar-ST rats. The number of total anaerobes tended to be greater in rats fed epilactose than in those fed the control diet. Epilactose inhibited the conversion of primary bile acids to secondary bile acids. Epilactose also increased the calcium absorption in everted small intestinal sacs. In addition, the levels of plasma total cholesterol and nonhigh-density lipoprotein cholesterol were lower in epilactose-fed rats. These results indicate that epilactose promotes calcium absorption in the small intestine and possibly lowers the risk of arteriosclerosis.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Picolinic acid is an organic compound, is a derivative of pyridine with a carboxylic acid substituent at the 2-position. Picolinic acid is a bidentate chelating agent of elements such as chromium, zinc, manganese, copper, iron, and molybdenum in the human body. Many of its complexes are charge-neutral and thus lipophilic. After its role in absorption was discovered, zinc dipicolinate dietary supplements became popular as they were shown to be an effective means of introducing zinc into the body. Picolinic Acid is an endogenous metabolite of L-tryptophan (TRP) that has been reported to possess a wide range of neuroprotective, immunological, and anti-proliferative effects within the body. However, the salient physiological function of this molecule is yet to be established. The synthesis of picolinic acid as a product of the kynurenine pathway (KP) suggests that, similar to other KP metabolites, picolinic acid may play a role in the pathogenesis of inflammatory disorders within the CNS and possibly other organs.
Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Nioxime (1,2-Cyclohexanedione dioxime) is used as a reagent in metal analysis, especially gravimetric determinations of bismuth, nickel and palladium.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

Fluorescein isothiocyanate (FITC) is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins. Isomer I (Fluorescein 5-isothiocyanate) has the thiocyanate group on the 4 carbon of the benzene ring, whereas isomer II (Fluorescein 6-isothiocyanate) has the thiocyanate on the 5 carbon. The two isomers are indistinguishable spectrally, either by wavelength or intensity. Isomer I is more easily isolated in pure form, so is less expensive. This may explain why isomer I is more commonly used for labeling. For many purposes, however, the mixed isomers of FITC will be perfectly suitable. Some FITC conjugates are being investigated for diagnostic purposes. Folate-fluorescein isothiocyanate, or folate-FITC, also identified as EC-17, targets folate receptors over expressed in certain cancers and could help in better identifying the margins of the cancer thereby achieving negative margins.

Showing 1521 - 1530 of 4227 results