(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.
Potash
Definition:
(n.) The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.
(n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).
Example Sentences:
(1) The purpose of this study was to determine the clinical, epidemiological and evolutive characteristics of interdigital and plantar intertrigo of the feet among people working in a coking plant, a potash mine and a motorcar factory.
(2) Fast "inactivation" of the potassium current is seen with patch pipettes fabricated from soft glass (soda glass or potash lead glass), and is probably caused by block of the potassium channels by di- or multivalent cations released from the glass.
(3) The prevalence of pleural calcification and pneumoconiosis in talc workers with 15 or more years of employment was higher than in potash miners.
(4) When rotary (drum) filters are used for phase splitting and rotary driers for drying the moist potash fertilizers the emission rate of chlorohydrogen lies between 300 and 1,000 mg m-3.
(5) The Palestinian economy could earn $918m (£571m), 9% of 2011 GDP, if minerals such as potash and bromine were harvested from the Dead Sea.
(6) The GCA RDM 101-1 has been evaluated using aerosols of coal, Arizona road dust, silica, potash, and rock (copper ore) particles.
(7) Symptoms were only slightly more prevalent in talc workers when compared to potash miners.
(8) From January 1986 through 1990, 70 children (42 boys, 28 girls) with esophageal stricture resulting from ingestion of caustic potash underwent simultaneous esophagectomy and colonic interposition utilizing the transhiatal esophageal approach.
(9) Danakali’s managing director Paul Donaldson said , “The Danakil region of East Africa is recognised as an emerging potash [potassium salts] province, and to date over 10bn tonnes of potassium bearing salts have been identified.” Online intelligence magazine Geeska Afrika explained : “Eritrea has many benefits it can offer potential investors.
(10) The mine, which sits on protected moorland overlooking Whitby and Robin Hood’s Bay, aims to produce up to 20m tonnes a year of a potassium-rich mineral called polyhalite, a type of potash fertiliser described by Sirius as a “fertiliser of the future”.
(11) On the basis of investigations in the potash mining industry of GDR were formulated the starting conditions for experiments in a simulation chamber.
(12) Three commonly used fertilizers, urea, single superphosphate and muriate of potash, induced chromosome and chromatid breaks in the metaphase chromosomes of bone marrow cells of fertilizer-fed Swiss albino mice, Mus musculus.
(13) A small corner of one of Britain’s most stunning national parks will be dug up to make way for a £1.7bn potash mine after locals were wooed with promises of more than 1,000 jobs – and the idea of restoring the proud mining heritage of the north-east of England.
(14) Cells from hardened formalin-fixed human hearts were isolated with potash lye.
(15) Two examples are a potash mine in the North York Moors National Park, which is expected to create up to 2,000 jobs, and the new Hitachi plant in Newton Aycliffe constructing superfast trains, which aims to bring in 730 workers.
(16) The dispute followed the collapse this month of a Russia-Belarus sales cartel that controlled two-fifths of the $20bn global market for potash, an ingredient used in mineral fertilisers.
(17) The method was compared with Beohringer's method (n = 50) using hydrolysis of alcoholic potash.
(18) Derek Quinn, who has just retired after 34 years at North Yorkshire’s existing potash mine, in nearby Boulby, said: “From what I understand, I think it will be excellent for the area.
(19) After a four-year planning wrangle, members of the North York Moors National Park Authority were cheered on Tuesday when they narrowly gave the green light to UK firm Sirius Minerals – via its subsidiary York Potash – to dig a mile-deep shaft under heavily protected moorland overlooking Whitby and Robin Hood’s Bay.
(20) The cutaneous sensitivity to benzalkonium chloride, sodium lauryl sulphate and potash soap was determined in 54 monozygotic and 46 dizygotic twin pairs.