Results 41 to 50 of about 408 (132)
Natural Product Communications, 2020 In this study, valuable polyhydroxynaphthoquinone (PHNQ) pigments were recovered from sea urchin food waste and were investigated as a potential bioactive ingredient for cosmeceuticals.
Vo Mai Nhu Hieu +5 more
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Evidence-Based Complementary and Alternative Medicine, Volume 2011, Issue 1, 2011., 2011 One of the polyketide compounds, the naphthoquinone pigment echinochrome, is synthesized in sea urchin pigment cells. We analyzed polyketide synthase (pks) and sulfotransferase (sult) gene expression in embryos and larvae of the sea urchin Strongylocentrotus intermedius from various stages of development and in specific tissues of the adults.
Natalya V. Ageenko +2 more
wiley +1 more source
Synthesis of Polyhydroxylated Aminonaphthazarins Related to Natural Pigments
Natural Product Communications, 2018 Amino analogs of echinochrome and ethylmompain, metabolites of sea urchins Scaphechinus mirabilis and Echinothrix diadema , and amino analogs of cristazarin, a metabolite of lichen Cladonia cristatella , were synthesized.
Galina I. Melman +4 more
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Marine Drugs, 2019 Of late, researchers have taken interest in alternative medicines for the treatment of brain ischemic stroke, where full recovery is rarely seen despite advanced medical technologies.
Ran Kim +7 more
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Marine Drugs, 2014 Echinochrome A (EchA) is a dark-red pigment of the polyhydroxynaphthoquinone class isolated from sea urchin Scaphechinus mirabilis. Acetylcholinesterase (AChE) inhibitors are used in the treatment of various neuromuscular disorders, and are considered as
Sung Ryul Lee +9 more
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European Journal of HistochemistryEchinoderms have always been an important resource for fisheries and aquaculture. More recently, growing interest in the study of natural products and their potential pharmacological applications led researchers to consider them a valuable source of ...
GEI - SOCIETÀ ITALIANA DI BIOLOGIA DELLO SVILUPPO E DELLA CELLULA
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Natural Product Communications, 2012 Antioxidant activities of minor pigments of sea urchins ( 1–5 ) and synthetic naphthazarins ( 7–13 ) were evaluated and compared with echinochrome A ( 6 ) using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonate ...
Natalia K. Utkina, Natalia D. Pokhilo
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Marine Drugs, 2021 Echinochrome A (Ech A, 7-ethyl-2,3,5,6,8-pentahydroxy-1,4-naphthoquinone) has been known to exhibit anti-oxidative and anti-inflammatory effects. However, no study has been carried out on the efficacy of Ech A against skin photoaging; this process is ...
Jung Eun Seol +10 more
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Health Science Reports, Volume 8, Issue 11, November 2025.ABSTRACT Background and Aims Marine macroalgae are abundant sources of bioactive polysaccharides—including alginate, fucoidan, ulvan, carrageenan, and agarose—widely recognized for extensive biomedical applications. These polysaccharides exhibit remarkable biological properties, such as immunostimulatory, anticancer, antioxidant, antimicrobial, and ...
Foroozan Jalalibidgoli +3 more
wiley +1 more source
Immunology &Cell Biology, Volume 103, Issue 1, Page 45-59, January 2025.Sea urchins are basal deuterostomes that share key molecular components of innate immunity with humans, and are a powerful model for the study of innate immunity. Here we characterize the morphology and associated molecular markers of immune cell types in a newly developed model sea urchin, Lytechinus pictus.
Katherine T Nesbit +8 more
wiley +1 more source