Purpurin triggers caspase-independent apoptosis in Candida dubliniensis biofilms. [PDF]
PLoS ONE, 2013 Candida dubliniensis is an important human fungal pathogen that causes oral infections in patients with AIDS and diabetes mellitus. However, C. Dubliniensis has been frequently reported in bloodstream infections in clinical settings.
Paul Wai-Kei Tsang +3 more
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HPLC, UV-Vis and NMR spectroscopic and DFT characterization of purpurin isolated from Rubia tinctorum L. [PDF]
Hemijska Industrija, 2013 Purpurin (1,2,4-trihidroxyanthraquinone), a naurally occuring anthraquinone pigment present in the root of Rubia tinctorum (Mull. Arg.) Zahlbr. was isolated from the plant, purified and characterized by HPLC chromatography, UV-Vis and NMR spectroscopy.
Marković Zoran S. +3 more
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A Quantum-Chemical and Correlation Study of the Ionization of Purpurin
Russian Journal of General Chemistry, 2005 Anthraquinoid tautomers participate in the ionization of purpurin. The tautomerism takes place in both ground and excited states of the molecules; the excited state is more sensitive to the tautomerism. The solvation and ionization shift the tautomeric equilibria.
Fain V.Ya., Zaitsev B.E., Ryabov M.A.
core +5 more sources
Environmental Drivers of Metabolic Plasticity in Rubia cordifolia From the Western Himalaya: Implications for Phytochemical Diversity and Antioxidant Potential. [PDF]
Chem BiodiversEnvironmental heterogeneity drives remarkable metabolic plasticity in Rubia cordifolia with significant variation in nutritional constituents, phytochemicals, bioactive compounds, and antioxidant activity among natural populations. High‐altitude populations exhibited higher accumulation of phenolics, flavonoids, alizarin, mollugin, and antioxidant ...
Tiwari D +5 more
europepmc +2 more sources
Structural and functional insights into the selective inhibition of mutant tau aggregation by purpurin and oleocanthal in frontotemporal dementia. [PDF]
Protein SciAbstract Tau aggregation driven by microtubule‐associated protein tau (MAPT) mutations is central to frontotemporal dementia pathology, yet no disease‐modifying therapies effectively target mutant tau. Here, we identify purpurin (PUR) and oleocanthal (OLC) as selective inhibitors of mutant tau aggregation using peptide models spanning the R2R3 ...
Goud AC +5 more
europepmc +2 more sources
Stressing the differences in alizarin and purpurin dyes through UV-visible light absorption and 1 H-NMR spectroscopies [PDF]
, 2022 Three anthraquinone-based chromophores (9,10-anthraquinone, alizarin, purpurin) are compared from the point of view of their experimental and computed NMR and UV-visible light absorption spectra.
Pierre, Thureau +5 more
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Copper-mediated DNA damage caused by purpurin, a natural anthraquinone
Genes and Environment, 2022 Background Purpurin (1,2,4-trihydroxy-9,10-anthraquinone), a natural red anthraquinone pigment, has historically been used as a textile dye. However, purpurin induced urinary bladder tumors in rats, and displayed a mutagenic activity in assay using ...
Hatasu Kobayashi +7 more
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Purpurin suppresses atopic dermatitis via TNF-α/IFN-γ-induced inflammation in HaCaT cells
International Journal of Immunopathology and Pharmacology, 2022 Objective We investigated whether purpurin inhibits various pathways of inflammation leading to atopic dermatitis. Introduction 1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone that is a naturally occurring red/yellow dye ...
Jae-Hoon Oh +7 more
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Multianalytical Study of Amuletic and Talismanic Islamic-African Paper Manuscripts in the Slovene Ethnographic Museum. [PDF]
ChempluschemThe image illustrates a multi‐technique analysis of Islamic‐African manuscripts from the nineteenth to twentieth centuries. It highlights methods like microscopy, hyperspectral imaging, FTIR, LIF, Raman, LIBS, and furnish analysis used to study paper fibers, inks, and dyes—revealing a blend of local and trade materials and a rich fusion of Qur’anic and
Elnaggar A +12 more
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Some anticancer agents as effective glutathione S-transferase (GST) inhibitors
Open Chemistry, 2023 The objective of this research was to investigate the impact of anthraquinone (AQ) compounds on the activity of the enzyme glutathione S-transferase (GST).
Gökçe Başak
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