Results 21 to 30 of about 77,595 (352)
BMC Genomics, 2021 Polygonum cuspidatum Sieb. et Zucc. is a well-known medicinal plant whose pharmacological effects derive mainly from its stilbenes, anthraquinones, and flavonoids.
Xiaowei Wang +6 more
semanticscholar +1 more source
6,7-Dimethoxy-1,4-anthraquinone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The molecule of the title compound, C16H12O4, is almost planar; the two methoxy groups are slightly out of the plane of the anthraquinone ring system, with C—C—O—C torsion angles of −6.25 (19) and −10.22 (19)°. In the crystal structure, the molecules adopt a herringbone arrangement and form face-to-face slipped antiparallel π–π stacking interactions ...
Takeshi Kawase +3 more
openaire +3 more sources
Back-electron transfer suppresses the periodic length dependence of DNA-mediated charge transport across adenine tracts [PDF]
, 2008 DNA-mediated charge transport (CT) is exquisitely sensitive to the integrity of the bridging π-stack and is characterized by a shallow distance dependence. These properties are obscured by poor coupling between the donor/acceptor pair and the DNA bridge,
Augustyn, Katherine E. +4 more
core +2 more sources
An Update of Anthraquinone Derivatives Emodin, Diacerein, and Catenarin in Diabetes
Evidence-Based Complementary and Alternative Medicine, 2021 Diabetes is part of metabolic diseases and is characterized by high blood sugar levels over a prolonged period as result of an insulin-deficient production or an inappropriate response to insulin by our cells. This chronic disease was the direct cause of
M. Martorell +7 more
semanticscholar +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2020 The title compound, C17H12O4, was synthesized from the dye alizarin. The dihedral angle between the mean plane of the anthraquinone ring system (r.m.s. deviation = 0.039 Å) and the dioxepine ring is 16.29 (8)°. In the crystal, the molecules are linked by
Sofia Zazouli +4 more
doaj +1 more source
Quinones as Promising Compounds against Respiratory Viruses: A Review
Molecules, 2023 Respiratory viruses represent a world public health problem, giving rise to annual seasonal epidemics and several pandemics caused by some of these viruses, including the COVID-19 pandemic caused by the novel SARS-CoV-2, which continues to date.
Ivan Chan-Zapata +2 more
doaj +1 more source
DNA intercalation and cleavage of an antitumor antibiotic dynemicin that contains anthracycline and enediyne cores [PDF]
, 1990 Dynemicin is a hybrid containing anthraquinone and enediyne cores, which contribute to binding and cleavage of DNA, respectively. DNA strand scission by the antitumor antibiotic is significantly enhanced by the addition of NADPH or thiol compounds.
Konishi, Masataka +3 more
core +1 more source
Electrochemical control of quantum interference in anthraquinone-based molecular switches [PDF]
, 2010 Using first-principles calculations we analyze the electronic transport properties of a recently proposed anthraquinone based electrochemical switch. Robust conductance on/off ratios of several orders of magnitude are observed due to destructive quantum ...
Jakob Schiötz +3 more
core +2 more sources
Genome-enabled discovery of anthraquinone biosynthesis in Senna tora
Nature Communications, 2020 Senna tora is a widely used medicinal plant. Its health benefits have been attributed to the large quantity of anthraquinones, but how they are made in plants remains a mystery.
Sang-Ho Kang +23 more
semanticscholar +1 more source
International Journal of Zoology, 2014 The plant allelochemical, quinizarin (1,4-dihydroxy-9,10-anthraquinone), and five anthraquinones that were synthesized from quinizarin, namely, 1,4-anthraquinone; 2-hydroxy-1,4-anthraquinone; 2-methoxy-1,4-anthraquinone; 9-hydroxy-1,4-anthraquinone; and ...
Christopher A. Drummond +4 more
doaj +1 more source