Results 131 to 140 of about 730 (160)

Marine Pharmacology in 2019-2021: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis and Antiviral Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. [PDF]

Mar Drugs
Mayer AMS, Mayer VA, Swanson-Mungerson M, Pierce ML, Rodríguez AD, Nakamura F, Taglialatela-Scafati O.   +6 more
europepmc   +1 more source

A molecular basis for spine color morphs in the sea urchin Lytechinus variegatus. [PDF]

Sci Rep
Wise M, Silvia M, Reyes G, Dunn R, Onorato TM, Pieplow C, Furze A, Hebert E, Oulhen N, Ritschoff D, McClay DR, Wessel G.   +11 more
europepmc   +1 more source

Physiological responses of sea urchin, Arbacia punctulata, exposed to temperature and lipopolysaccharides (LPS). [PDF]

PLoS One
Fahim NF, Parajuli K, Mishu I, Mumu SK, Aung Win EH, Mustafa A.   +5 more
europepmc   +1 more source

Sea Urchin Food Waste into Bioactives: Collagen and Polyhydroxynaphtoquinones from P. lividus and S. granularis. [PDF]

Mar Drugs
Roncoroni M, Martinelli G, Farris S, Marzorati S, Sugni M.   +4 more
europepmc   +1 more source

Myocardial Ischemia/Reperfusion Injury: Mechanism and Targeted Treatment for Ferroptosis. [PDF]

Anatol J Cardiol
Deng Y, Chen Q, Wang T, Wang S, Li R, Wang Y, Zhang J, Gan J, Guo M.   +8 more
europepmc   +1 more source

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Isolation of Echinochrome A from the Spines of the Sea Urchin, Stomopneustes variolaris (Lamarck)

Nature, 1961
I HAVE reported the presence of echinochrome A (7-ethyl-2,3,5,6,8-pentahydroxy-1,4-naphthaquinone) in the spines of the sea urchin, Echinarachnius (Scaphechinus) mirabilis1 and Diadema setosum2. Recently it was found that the principal naphthaquinone pigment in the almost black spines of the sea urchin, Stomopneustes variolaris (Lamarck) (Japanese name,
V. P. Glazunov, D. V. Berdyshev, V. L. Novikov   +2 more
exaly   +6 more sources

Redox properties of echinochrome A

Journal of Electroanalytical Chemistry, 1995
Abstract The electrochemical properties of polyhydroxynaphthoquinone from the shells of sea-urchins Strongylocentrotus intermedius (echinochrome A) and related compounds were investigated using thin layer voltammetry on pyrolytic graphite electrodes.
S.A. Petrova, O.S. Ksenzhek, M.V. Kolodyazhny   +2 more
openaire   +3 more sources

Echinochrome, a naturally occurring iron chelator and free radical scavenger in artificial and natural membrane systems

Life Sciences, 2005
Echinochrome, or 6-ethyl-2,3,5,7,8-pentahydroxy-1,4-naphthoquinone, possesses cardioprotective activity, and diminishes the myocardial ischemia/reperfusion injury that is known to be accompanied by free-radical oxidative damage and calcium overload. In this study, we investigated the lipophilicity of echinochrome, its ability to inhibit free-radical ...
Alexander V, Lebedev, Marina V, Ivanova, Dmitri O, Levitsky   +2 more
openaire   +4 more sources

Squaric Acid Ester-Based Total Synthesis of Echinochrome A

The Journal of Organic Chemistry, 2002
The total synthesis of echinochrome A is described. Both key intermediates 5 and 8 were efficiently prepared from diisopropyl squarate 7. Nucleophilic addition of aryllithium 8 to 5, followed by thermal ring-expansion/cyclization of the 1,2-adduct 4, furnished hydroquinone 3. Oxidation and full deprotection of 3 gave the title compound.
Eduardo, Peña-Cabrera, Lanny S, Liebeskind   +1 more
openaire   +2 more sources