(n.) A plant of the Rubia (R. tinctorum). The root is much used in dyeing red, and formerly was used in medicine. It is cultivated in France and Holland. See Rubiaceous.
Example Sentences:
(1) The less than full-throated defence of the cabinet member follows similar comments by White House chief of staff Dennis McDonough on Sunday, who said the president was “madder than hell” about the scandal.
(2) Twenty compounds were isolated from the roots of Rubia tinctorum which are used as a commercial source of madder color.
(3) Tom Madders, head of campaigns at the National Autistic Society, said: "The Department for Work and Pensions is certainly guilty of helping to drive this media narrative around benefits, portraying those who receive benefits as workshy scroungers or abusing a system that's really easy to cheat."
(4) But you put them in a madness asylum they get madder and madder and completely lose their mind, whereas if you work with them, they get better."
(5) You can watch as "the Mad Hatter gets even madder", and throw pepper at the Duchess.
(6) This "scrounger rhetoric" was already having an impact on people's lives, Madders said, citing a woman who rang the charity to say a neighbour who formerly gave lifts to her autistic child had stopped doing so following press articles about disabled people receiving free cars under a government scheme .
(7) President Barack Obama is "madder than hell" about the scandal enveloping the Department of Veterans Affairs, White House chief of staff Denis McDonough said on Sunday.
(8) He's madder than Mad Jack McMad, the winner of last year's Mr Madman Competition!
(9) This will have an impact on cancer detection, as well as causing problems for the management of patients who may have benign diseases, but whose symptoms are significantly impacting on their quality of life and employment.” Labour’s Justin Madders, a shadow health minister and Cheshire MP, said: These plans are a betrayal of the founding principles of the NHS, that access to care should be available to everyone, and also that long waits shouldn’t happen.
(10) On quantitative analysis by high-performance liquid chromatography, the contents of ruberthric acid and lucidin-3-O-primeveroside in commercial madder color were determined 0.07% and 0.04%, respectively.
(11) The president is madder than hell,” McDonough told CBS's Face the Nation.
(12) The Labour MP Justin Madders, chair of the APPG, said social mobility was “shamefully low” at the top of UK society.
(13) We also investigated lucidinethylether, which is formed from lucidin by extraction of madder roots with boiling ethanol.
(14) Labour MP Justin Madders, a shadow health minister, recently outlined his concern about the lack of public attention so far on “Jeremy Hunt’s opaque and secretive reorganisation of the NHS, which is being drawn up behind closed doors at this very moment through sustainability and transformation plans”.
(15) Why do some men – Andrew Neil joked about being "madder than a box of Nadine Dorrieses" – feel able to laugh at her in so unbridled a fashion?
(16) "I don't think they're any madder than Jeremy Paxman or John Humphrys!"
(17) Camp is made in a dune's hollow and we go even madder.
(18) The differential diagnosis of the condition is discussed: especially the hydrolethalus syndrome, and the Young and Madders' syndrome reported in 1987.
(19) Obama – whom a spokesman last week described as “madder than hell” about the VA scandal – was delivering his weekly address on the first day of the long Memorial Day weekend.
(20) Two main coloring constituents in the commercial madder color were isolated and identified as ruberthric acid and lucidin-3-O-primeveroside.
Purpurin
Definition:
(n.) A dyestuff resembling alizarin, found in madder root, and extracted as an orange or red crystalline substance.
Example Sentences:
(1) A cDNA for purpurin, a secreted 20,000 dalton neural retina cell adhesion and survival protein, has been sequenced and expressed in mammalian cells.
(2) Purpurin was not retained intracellularly and did not bind to TTR coupled to Sepharose.
(3) Purpurins, which have strong absorption bands above 650 nm.
(4) The 20,000-mol-wt protein, called retinal purpurin (RP), stimulates neural retina cell-substratum adhesion and prolongs the survival of neural retina cells in culture.
(5) In 30-day tumor regrowth studies, 70% of animals treated with the metallopurpurin derivative SnET2 were free of tumors while 50% of the animals treated with the free-base purpurin ET2 were free of tumor.
(6) In spite of UV-vis and mass spectroscopic similarities, the "purpurin" 7 differs from the "purpurins" 6a,b by the loss of ring A.
(7) The synthesis of purpurins from etioporphyrin I and coproporphyrin I proceeds in high yield and with a high degree of regioselectivity.
(8) Product formation can be rationalized in terms of relief of steric strain about the periphery of the purpurin macrocycle.
(9) Purpurin mRNA is found in both embryonic and adult retina, but not the brain, heart, or liver.
(10) In contrast to RBP, purpurin was not retained in vitamin A-deficient HeLa cells.
(11) Purpurin and the serum RBP are, however, different molecules, for the serum protein is approximately 3,000 D larger than purpurin and has different silver-staining characteristics.
(12) Most interestingly, anti-purpurin and anti-HSPG bound only to one end of adhesive filaments.
(13) Purpurin derivatives, a group of synthetic photosensitizers, were tested for their photodynamic activity against transplantable N-[4-(5-nitro-2-furyl)-2-thiazolyl]formamide-induced urothelial tumors growing in male Fischer 344 rats.
(14) In contrast to RBP, expressed purpurin did not bind to transthyretin (TTR).
(15) Purpurins are a class of porphyrin derivative that have been shown to have good in vivo cytotoxicity to N-[4-(5-nitro-2-furyl)-2-thiazolyl]formamide (FANFT) induced rat bladder tumors (AY-27) implanted into Fisher 344 rats.
(16) Finally, purpurin supports the survival of dissociated ciliary ganglion cells, indicating that RBPs can act as ciliary neurotrophic factors.
(17) A 20,000-D protein called purpurin has recently been isolated from the growth-conditioned medium of cultured embryonic chick neural retina cells (Schubert, D., and M. LaCorbiere, 1985, J.
(18) Purpurin binds retinol and may play a major role in retinol transport across the interphotoreceptor cell matrix.
(19) Ferritin iron was released by a number of bipyridyl radicals including those derived from diquat and paraquat, the anthracycline radicals of adriamycin, daunorubicin and epirubicin, the semiquinones of anthraquinone-2-sulphonate, 1,5 and 2,6-dihydroxyanthraquinone, 1-hydroxyanthraquinone, purpurin, and plumbagin, and the nitroaromatic radicals of nitrofurantoin and metronidazole.
(20) In V79 cells, only HA with 2 hydroxy groups in the 1,3 positions (1,3-DHA, purpurin, emodin) or with a hydroxymethyl sidechain (lucidin and aloe-emodin) were mutagenic.