(n.) A white, crystalline substance, C8H7N, obtained from blue indigo, and almost all indigo derivatives, by a process of reduction. It is also formed from albuminous matter, together with skatol, by putrefaction, and by fusion with caustic potash, and is present in human excrement, as well as in the intestinal canal of some herbivora.
Example Sentences:
(1) The rate of indole production is increased about 4-fold when the aminoacrylate produced is converted to S-(hydroxyethyl)-L-cysteine by a coupled beta-replacement reaction with beta-mercaptoethanol.
(2) This derivative also allowed sensitive detection and measurement of indole-3-pyruvate in the picogram range using a gas chromatograph with an electron capture detector.
(3) In addition, it has excellent antibacterial activity against indole-positive Proteus strains against which conventional Cephalosporins are ineffective.
(4) These findings imply that smooth muscle replication in advanced plaques is indolent and raise the possibility of a role for proliferating leukocytes.
(5) Mitomycin C extravasation produces a painful indolent ulcer that does not have any tendency to heal.
(6) Among the indoles tested only 6-chloromelatonin, melatonin and N-acetylserotonin had significant affinities to the [125I]iodomelatonin binding site.
(7) Using thin layer chromatography on fluorescent silica gel plates, 5 indoles were identified and 6 unknown substances isolated from the pineal incubate and from both extracts.
(8) It was also found that the levels of s-dTK in the progressive stage were much higher than those in the indolent stage.
(9) Cyclobutadipyrimidines (pyrimidine dimers) undergo splitting that is photosensitized by indole derivatives.
(10) This series of compounds includes [R-(R*,R*)]-4-[[2-[[3-(1H-indol-3-yl)-2-methyl-1-oxo-2- [[(tricyclo[3.3.1.1] dec-2-yloxy)carbonyl]amino]propyl]amino]-1-phenylethyl]amino]- 4-oxobutanoic acid (CI-988, 1, Figure 1), the first rationally designed non-peptide antagonist of a neuropeptide receptor.
(11) Eight of the nine (88.9%) Proteus vulgaris isolates gave a positive spot indole test; one (11.1%) gave a negative result.
(12) 15 human tumour cell lines (lung, breast and colon) have been evaluated for their sensitivity to the quinone based anti-cancer drugs Mitomycin C, Porfiromycin, and EO9 (3-hydroxymethyl-5-aziridinyl-1-methyl-2-(IH-indole-4,7-dione)prop-beta- en-alpha-ol).
(13) The fluorogenic beta-D-Glucuronidase test, together with an Indol-capillary test for rapid identification of E. coli, were proved with 60 toxinogenic, 335 nontoxinogenic wild-type strains, and 87 other gram-negative isolates from food.
(14) Enzymatic production of L-tryptophan from DL-serine and indole by a coupled reaction of tryptophan synthase and amino acid racemase was studied.
(15) It inhibited some Enterobacter and indole-positive Proteus, but it was less active against these later species than was cefamandole, cefuroxime, or cefoxitin.
(16) An hydroxyl group in the 5 position of the indole nucleus, sterically unencumbered by hydroxyls in neighboing positions, is essential.
(17) We now report a second case with similar features of chronic recurrent indolent inflammatory skin lesions, nondiagnostic skin biopsies, and failure to respond to antibiotics.
(18) In this study, the roots of Tabernaemontana heyneana Wall were examined and the isolation and identification of additional indole alkaloids and some pharmacological properties of coronaridine are described.
(19) In an effort to understand the mechanism by which dietary indoles inhibit chemically initiated tumorigenesis in experimental animals, we have investigated the potency of 3-substituted and 1,3-disubstituted indoles on the induction of intestinal and hepatic cytochrome P-448-dependent monooxygenases in the rat.
(20) Low nanogram levels of tyrosine, norepinephrine, 5-hydroxyindole-3-acetic acid, tryptophan, serotonin and 6-hydroxymelatonin, and picogram levels of 5-hydroxytryptophan, 5-hydroxytryptophol, 5-methoxyindole-3-acetic acid, indole 3-acetic acid, 5-methoxytryptophol and melatonin were indicated in most of the samples.