(n.) A glucoside obtained from woad (indigo plant) and other plants, as a yellow or light brown sirup. It has a nauseous bitter taste, a decomposes or drying. By the action of acids, ferments, etc., it breaks down into sugar and indigo. It is the source of natural indigo.
(n.) An indigo-forming substance, found in urine, and other animal fluids, and convertible into red and blue indigo (urrhodin and uroglaucin). Chemically, it is indoxyl sulphate of potash, C8H6NSO4K, and is derived from the indol formed in the alimentary canal. Called also uroxanthin.
Example Sentences:
(1) When applied as diagnostic tests for the stagnant loop syndrome, the phenol excretion showed 2 false negative results, the p-cresol excretion 3 false negative and 2 false positive results, and the indican excretion 6 false positive results.
(2) p-Cresol may therefore prove more sensitive than indican as an indicator of altered microbial metabolism due to saccharin.
(3) Intestinal protein metabolism and bile acid deconjugation (measured by urinary indican excretion and 14C-glycocholic acid breath test) was significantly enhanced in bypass patients.
(4) This diagnostic procedure was applied to the identification of patients with steatorrhoea due to the stagnant loop syndrome, and was compared with other tests for this condition, viz, study of the small intestinal bacterial flora, urinary indican excretion, and the Schilling test with added intrinsic factor.
(5) When Id and NaS were ingested together, the bladder mass increase was additive, but the epithelial hyperplasia was not exacerbated over that observed with each alone, and the urinary indican was equivalent to that produced by Id alone.
(6) Most indican excreted in the urine comes from the degradation of tryptophan through the action of microorganisms dwelling within the intestinal lumen.
(7) The colors are formed from the substrate indoxyl sulfate (indican) and all 7 patients had bacteria in the urine that would produce blue colonies on agar enriched with the urine (filter sterilized) of the patients involved.
(8) Determination of phenol and indican in a 24-hour urine sample is likely to provide a simple method for selecting patients with signs of abnormal bacterial colonization in the small intestine for more detailed investigations.
(9) A simple analytical procedure has been developed for the determination of indican and tryptophan in biological fluids by reversed-phase liquid chromatography using a new electrochemical detector consisting of a tubular anode obtained by moulding graphitized carbon black and polyethylene.
(10) The microbial catabolism of tryptophan to indole has been studied in 15 human subjects by analysis of the daily urinary excretion of indican (potassium indoxylsulphate) before, during and after chronic saccharin ingestion.
(11) Indican excretion was higher in patients with purple urinary catheter bags than in controls.
(12) By shortening the reaction time with the 2,4-DCPD reagent to 1.7 min, we find that the indican interference can be eliminated, without affecting quantification of total bilirubin in either normal or uremic sera.
(13) The excretion of indican (formed from indole, a microbial metabolite of tryptophan) was increased by saccharin in a dose-related fashion at all time points, but showed only a 3-fold increase at 7.5% compared with the 0% group.
(14) Increased excretion of indican has been noted, suggesting deficient intestinal absorption of L-tryptophan.
(15) The Jendrassik Bilirubin Reagent System (American Monitor) and a modified Jendrassik-Grof procedure (Hoffmann-LaRoche) adapted to the Cobas Bio analyzer were unaffected by the presence of indican.
(16) Treatment with pancreatic extract resulted in an immediate increase in indican excretion to above the normal range in patients with steatorrhoea due to pancreatic insufficiency.
(17) Saccharin-treated animals in both generations showed increased urinary excretion of indican.
(18) The urinary excretion of indican was increased in the fistula-operated rats, but further studies are needed to establish the significance of this observation.
(19) Indican also interfered with the Micro Bilirubin Reagent Set (Harleco) Malloy-Evelyn procedure, but to a much lesser extent.
(20) Concentrations of indican were about 1.5 those of tryptophan and considerably greater than those of indole-3-acetic acid in hemodialysate samples from 12 renal patients.
Indigo
Definition:
(n.) A kind of deep blue, one of the seven prismatic colors.
(n.) A blue dyestuff obtained from several plants belonging to very different genera and orders; as, the woad, Isatis tinctoria, Indigofera tinctoria, I. Anil, Nereum tinctorium, etc. It is a dark blue earthy substance, tasteless and odorless, with a copper-violet luster when rubbed. Indigo does not exist in the plants as such, but is obtained by decomposition of the glycoside indican.
(a.) Having the color of, pertaining to, or derived from, indigo.
Example Sentences:
(1) Mood Indigo (18 July) Arguably the most French movie ever made, Romain Duris and Audrey Tautou are quite adorable as fairy tale lovers in Michel Gondry's adaptation of Boris Vian's Froth on the Daydream.
(2) Among the latter, there were sensitizations, to our knowledge hitherto unreported in the literature: to indigo carmine (2 cases), monensin sodium (1 case), thiabendazole (1 case), methylchlorpindol (1 case) and amprolium hydrochloride (1 case).
(3) Over a crest in the road was the cause of the electronic silence: the National Radio Astronomy Observatory (NRAO), an array of radio telescopes set against the indigo vastness of the Blue Ridge Mountains.
(4) The enzymatic activity was revealed by reddish-brown, purple red, and indigo-blue cytoplasmic precipitate, using the substrates alpha-naphthyl-acetate, naphthol-AS acetate and 5-bromo-4-chloro-indoxyl acetate respectively.
(5) We conclude that avoiding of xylene, and mounting of the preparates in Histoclear (a xylene substitute) and Canada balsam (instead of synthetic resin mountants) yields a sharp and stable indigo precipitate.
(6) The plantations of the Carolina Low Country produced rice, indigo and cotton.
(7) Synthetic indigo, indirubin and isatin were tested for TCDD receptor affinity in competition experiments in vitro.
(8) When injected with indigo carmine, the vessels localized by the hydrogen-induced current impulses filled the entire anterior spinal artery from the low thoracic to the sacral region, whereas injection of the other vessels did not show filling.
(9) beta-galactosidase, revealed by an indigo blue reaction product, represents a valid tracer in immunohistochemistry.
(10) Chromosomal aberrations induced by indigo carmine (secondary amine-containing dye), fast green FCF (tertiary amine-containing dye) and sodium nitrite, singly and in combination, were studied in mice after prolonged feeding in the diet.
(11) Following aspirate cytology, the lesion was localized with indigo carmine and Kopans' wire and every patient underwent a standard open excisional biopsy.
(12) Observations on the instability of the indigo precipitate led us to investigate this phenomenon.
(13) Synthetic indigo of technical grade or 98% pure showed mutagenic effects, especially on TA98 + S9.
(14) A trichrome staining technique using safranin-indigo-picrocarmine (SIPC) can be used to distinguish the various stages of the cell cycle in onion root tip.
(15) He was hooked the moment he heard Mood Indigo on his grandparents' wireless set at the age of five: "Something about it made my ears tingle."
(16) A central region of 2.9 kbp complemented an xylA (for xylene oxygenase) mutant of Pseudomonas putida mt-2 and was also capable of conferring the ability to convert indole to indigo on strains of Escherichia coli and P. putida.
(17) No hemodynamic instability occurred during the operation until the patient was administered intravenous (IV) indigo carmine 5 ml.
(18) Until further studies defining the mechanism for its hypertensive side effect are performed, indigo carmine should be used with caution in patients with severe cardiac dysfunction.
(19) Later, at Burberry , models walked the catwalk in buttoned-up indigo jackets and matching jeans.
(20) However, indigo showed a high (Kd = 1.9 nM) affinity for the Ah or TCDD receptor.