Polyhydroxylated steroids from the South China Sea soft coral Sarcophyton sp. and their cytotoxic and antiviral activities.

abstract：:In continuation of our search for drug leads from Red Sea sponges we have investigated the ethyl acetate fraction of the organic extract of the Red Sea sponge Hyrtios species. Bioassay-directed fractionation of the active fraction resulted into the identification of three new alkaloids, hyrtioerectines D-F (1-3). Hyrt...

journal_title：Marine drugs

authors： Youssef DT,Shaala LA,Asfour HZ

更新日期：2013-03-28 00:00:00

abstract：:Thirteen nitrogen-containing molecules (1a/1b and 2-12) were isolated from the Indonesian sponge Acanthostrongylophora ingens, highlighting the richness of this organism as a source of alkaloids. Their structures were elucidated using one- and two-dimensional NMR spectroscopy and HR-ESI-MS, while the stereochemistry o...

journal_title：Marine drugs

authors： Esposito G,Mai LH,Longeon A,Mangoni A,Durieu E,Meijer L,Van Soest R,Costantino V,Bourguet-Kondracki ML

更新日期：2019-08-15 00:00:00

abstract：:We performed a high-content screening (HCS) assay aiming to discover bioactive molecules with proteasome inhibitory activity. By structural elucidation, we identified six compounds purified from soft coral Clavularia flava, which potentiates proteasome inhibition. Chemical structure elucidation revealed they are dolab...

journal_title：Marine drugs

authors： Chiu CY,Ling XH,Wang SK,Duh CY

更新日期：2020-01-03 00:00:00

abstract：:The purpose of this study was to develop a pharmaceutical formulation containing fatty acid extract rich in free omega-3 fatty acids such as eicosapentaenoic acid and docosahexaenoic acid for topical use. Although the health benefits of cod liver oil and other fish oils taken orally as a dietary supplement have been a...

journal_title：Marine drugs

authors： Ilievska B,Loftsson T,Hjalmarsdottir MA,Asgrimsdottir GM

更新日期：2016-06-01 00:00:00

abstract：:Microorganisms that inhabit unchartered unique soil such as in the highly saline and hot Red Sea lagoons on the Saudi Arabian coastline, represent untapped sources of potentially new bioactive compounds. In this study, a culture-dependent approach was applied to three types of sediments: mangrove mud (MN), microbial m...

journal_title：Marine drugs

authors： Al-Amoudi S,Essack M,Simões MF,Bougouffa S,Soloviev I,Archer JA,Lafi FF,Bajic VB

更新日期：2016-09-10 00:00:00

abstract：:Red algae of the genus Plocamium have been a rich source of halogenated monoterpenes. Herein, a new cyclic monoterpene, costatone C (7), was isolated from the extract of P. angustum collected in New Zealand, along with the previously reported (1E,5Z)-1,6-dichloro-2-methylhepta-1,5-dien-3-ol (8). Elucidation of the pla...

journal_title：Marine drugs

authors： Bracegirdle J,Sohail Z,Fairhurst MJ,Gerth ML,Zuccarello GC,Ali Hashmi M,Keyzers RA

更新日期：2019-07-19 00:00:00

abstract：:Chemical investigation of the methanol extract of the Vietnamese marine sponge Ircinia echinata led to the isolation of six new 9α-hydroxy-5α,6α-epoxysterols: 5α,6α-epoxycholesta-7,22(E)-dien-3β,9α-diol (1), 5α,6α-epoxycholesta-7,24(28)-dien-3β,9α-diol (2), (24R)-5α,6α-epoxy-24-ethyl-cholesta-7-en-3β,9α-diol (3), 5α,6...

journal_title：Marine drugs

authors： Trinh TTV,Truong BN,Longeon A,Doan TMH,Deville A,Chau VM,Pham VC,Bourguet-Kondracki ML

更新日期：2018-11-01 00:00:00

abstract：:Carotenoids are natural pigments that contribute to light harvesting and photo-protection in photosynthetic organisms. In this study, we analyzed the carotenoid profiles, including mono-hydroxy and epoxy-carotenoids, in the economically valuable red seaweed Pyropia yezoensis, to clarify the detailed biosynthetic and m...

journal_title：Marine drugs

authors： Koizumi J,Takatani N,Kobayashi N,Mikami K,Miyashita K,Yamano Y,Wada A,Maoka T,Hosokawa M

更新日期：2018-11-01 00:00:00

abstract：:Using theonellasterol as a novel FXR antagonist hit, we prepared a series of semi-synthetic derivatives in order to gain insight into the structural requirements for exhibiting antagonistic activity. These derivatives are characterized by modification at the exocyclic carbon-carbon double bond at C-4 and at the hydrox...

journal_title：Marine drugs

authors： Sepe V,Ummarino R,D'Auria MV,Taglialatela-Scafati O,Marino SD,D'Amore C,Renga B,Chini MG,Bifulco G,Nakao Y,Fusetani N,Fiorucci S,Zampella A

更新日期：2012-11-05 00:00:00

abstract：:Two new guaiazulene-based analogues, ochracenoids A (1) and B (2), along with four known analogues (3-6), were isolated from the gorgonian Anthogorgia ochracea collected from the South China Sea. The planar structures of the new compounds were elucidated by comprehensive spectroscopic data. The absolute configuration ...

journal_title：Marine drugs

authors： Zheng JJ,Shao CL,Chen M,Gan LS,Fang YC,Wang XH,Wang CY

更新日期：2014-03-14 00:00:00

abstract：:Pseudomonas aeruginosa biofilms are typically associated with the chronic lung infection of cystic fibrosis (CF) patients and represent a major challenge for treatment. This opportunistic bacterial pathogen secretes alginate, a polysaccharide that is one of the main components of its biofilm. Targeting this major biof...

journal_title：Marine drugs

authors： Daboor SM,Raudonis R,Cohen A,Rohde JR,Cheng Z

更新日期：2019-05-24 00:00:00

abstract：:The red macroalga Agarophyton chilensis is a well-known producer of eicosanoids such as hydroxyeicosatetraenoic acids, but the alga produces almost no prostaglandins, unlike the closely related A. vermiculophyllum. This indicates that the related two algae would have different enzyme systems or substrate composition. ...

journal_title：Marine drugs

authors： Honda M,Ishimaru T,Itabashi Y,Vyssotski M

更新日期：2019-02-02 00:00:00

abstract：:Resistance to chemotherapy occurs in various diseases (i.e., cancer and infection), and for this reason, both are very difficult to treat. Therefore, novel antimicrobial and chemotherapic drugs are needed for effective antibiotic therapy. The aim of the present study was to assess the antimicrobial and anti-proliferat...

journal_title：Marine drugs

authors： Fuochi V,Li Volti G,Camiolo G,Tiralongo F,Giallongo C,Distefano A,Petronio Petronio G,Barbagallo I,Viola M,Furneri PM,Di Rosa M,Avola R,Tibullo D

更新日期：2017-11-01 00:00:00

abstract：:The potential of marine natural products to become new drugs is vast; however, research is still in its infancy. The chemical and biological diversity of marine toxins is immeasurable and as such an extraordinary resource for the discovery of new drugs. With the rapid development of next-generation sequencing (NGS) an...

journal_title：Marine drugs

authors： Xie B,Huang Y,Baumann K,Fry BG,Shi Q

更新日期：2017-03-30 00:00:00

abstract：:Spumigins are marine natural products derived from cyanobacteria Nodulariaspumigena, which mimics the structure of the d-Phe-Pro-Arg sequence and is crucial for binding to the active site of serine proteases thrombin and factor Xa. Biological evaluation of spumigins showed that spumigins with a (2S,4S)-4-methylproline...

journal_title：Marine drugs

authors： Žula A,Będziak I,Kikelj D,Ilaš J

更新日期：2018-10-27 00:00:00

abstract：:Sponges are important sources of bioactive secondary metabolites. These compounds are frequently synthesized by bacterial symbionts, which may be recruited from the surrounding seawater or transferred to the sponge progeny by the parent. In this study, we investigated the bacterial communities associated with the spon...

journal_title：Marine drugs

authors： Waterworth SC,Jiwaji M,Kalinski JJ,Parker-Nance S,Dorrington RA

更新日期：2017-03-25 00:00:00

abstract：:After in situ incubation at the site for a year, phytoplanktons in surface water were exposed to natural light in temperate lakes (every month); thereafter, the net production rate of photoprotective compounds (mycosporine-like amino acids, MAAs) was calculated using (13)C labeled tracer. This is the first report desc...

journal_title：Marine drugs

authors： Ha SY,Lee Y,Kim MS,Kumar KS,Shin KH

更新日期：2015-11-06 00:00:00

abstract：:Pectenotoxin-2 (PTX-2), which was first identified as a cytotoxic entity in marine sponges, has been reported to display significant cytotoxicity to human cancer cells where it inhibits mitotic separation and cytokinesis through the depolymerization of actin filaments. In the late stage of endoreduplication, the effec...

journal_title：Marine drugs

authors： Kim GY,Kim WJ,Choi YH

更新日期：2011-01-01 00:00:00

abstract：:Gorgonian octocorals are considered a prolific source of secondary metabolites with a wide range of biological activities, including anti-inflammatory activity. In particular, the genus Briareum is known for producing a wealth of diterpenes with complex chemical structures. The chemical study of the methanolic extract...

journal_title：Marine drugs

authors： Gutiérrez M,Santamaría R,Gómez-Reyes JF,Guzmán HM,Ávila-Román J,Motilva V,Talero E

更新日期：2020-01-27 00:00:00

abstract：:A chemical study of the ethyl acetate (EtOAc) extract from the deep-sea-derived fungus Penicilliumthomii YPGA3 led to the isolation of a new austalide meroterpenoid (1) and seven known analogues (28), two new labdane-type diterpenoids (9 and 10) and a known derivative (11). The structures of new compounds 1, 9, and 10...

journal_title：Marine drugs

authors： Cheng Z,Liu W,Fan R,Han S,Li Y,Cui X,Zhang J,Wu Y,Lv X,Zhang Y,Luo Z,Alias SA,Xu W,Li Q

更新日期：2020-03-16 00:00:00

abstract：:Two new compounds-a trioxilin and a sulfoquinovosyl diacylglycerol (SQDG)-were isolated from the methanolic extract of the heterotrophic dinoflagellate Oxyrrhis marina cultivated by feeding on dried yeasts. The trioxilin was identified as (4Z,8E,13Z,16Z,19Z) -7(S),10(S),11(S)-trihydroxydocosapentaenoic acid (1), and t...

journal_title：Marine drugs

authors： Yoon EY,Yang AR,Park J,Moon SJ,Jeong EJ,Rho JR

更新日期：2017-02-27 00:00:00

abstract：:β-N-Methylamino-L-alanine (BMAA), a neurotoxic non-protein amino acid, plays a significant role as an environmental risk factor in neurodegenerative diseases, such as amyotrophic lateral sclerosis. BMAA producers occur globally, colonizing almost all habitats and represent species from distinct phytoplanktonic groups,...

journal_title：Marine drugs

authors： Lage S,Annadotter H,Rasmussen U,Rydberg S

更新日期：2015-03-02 00:00:00

abstract：:In this study, thirteen sponge-derived terpenoids, including five linear furanoterpenes: furospinulosin-1 (1), furospinulosin-2 (2), furospongin-1 (3), furospongin-4 (4), and demethylfurospongin-4 (5); four linear meroterpenes: 2-(hexaprenylmethyl)-2-methylchromenol (6), 4-hydroxy-3-octaprenylbenzoic acid (7), 4-hydro...

journal_title：Marine drugs

authors： Orhan I,Sener B,Kaiser M,Brun R,Tasdemir D

更新日期：2010-01-15 00:00:00

abstract：:Nine new sulfated triterpene glycosides, magnumosides A₁ (1), A₂ (2), A₃ (3), A₄ (4), B₁ (5), B₂ (6), C₁ (7), C₂ (8) and C₄ (9) as well as a known colochiroside B₂ (10) have been isolated from the tropical Indo-West Pacific sea cucumber Neothynidium (=Massinium) magnum (Phyllophoridae, Dendrochirotida) collected in th...

journal_title：Marine drugs

authors： Silchenko AS,Kalinovsky AI,Avilov SA,Kalinin VI,Andrijaschenko PV,Dmitrenok PS,Chingizova EA,Ermakova SP,Malyarenko OS,Dautova TN

更新日期：2017-08-16 00:00:00

abstract：:We test previous claims that the bacteria Vibrio alginolyticus produces tetrodotoxin (TTX) when living in symbiosis with the nemertean Lineus longissimus by a setup with bacteria cultivation for TTX production. Toxicity experiments on the shore crab, Carcinus maenas, demonstrated the presence of a paralytic toxin, but...

journal_title：Marine drugs

authors： Strand M,Hedström M,Seth H,McEvoy EG,Jacobsson E,Göransson U,Andersson HS,Sundberg P

更新日期：2016-03-25 00:00:00

abstract：:Fish processing industries generate a large volume of discards. In order to fulfil with the principles of a sustainable circular economy, it is necessary to maintain aquaculture by-products in the food chain through the production of high-value biomolecules that can be used as novel ingredients. In this study, we try ...

journal_title：Marine drugs

authors： Pateiro M,Munekata PES,Domínguez R,Wang M,Barba FJ,Bermúdez R,Lorenzo JM

更新日期：2020-02-04 00:00:00

abstract：:Sulphated polysaccharides with anti-thrombotic and anti-coagulant activities have been found in various marine biota. In this study, a previously characterised anti-thrombotic and anti-coagulant extract from blacklip abalone was fractionated by anion exchange chromatography (AEC), pooled (on a sulphated polysaccharide...

journal_title：Marine drugs

authors： Suleria HAR,Masci PP,Zhao KN,Addepalli R,Chen W,Osborne SA,Gobe GC

更新日期：2017-08-04 00:00:00

abstract：:We aimed to investigate the pharmacokinetics and the underlying mechanisms of the intestinal absorption, distribution, metabolism, and excretion of Jaspine B in rats. The oral bioavailability of Jaspine B was 6.2%, but it decreased to 1.6% in bile-depleted rats and increased to 41.2% (normal) and 23.5% (bile-depleted)...

journal_title：Marine drugs

authors： Choi MK,Lee J,Nam SJ,Kang YJ,Han Y,Choi K,Choi YA,Kwon M,Lee D,Song IS

更新日期：2017-09-01 00:00:00

abstract：:Ten new triterpenoid compounds with structure diversity of the C-17 side-chain, including nine tirucallanes, named xylocarpols A⁻E (1⁻5) and agallochols A⁻D (6⁻9), and an apotirucallane, named 25-dehydroxy protoxylogranatin B (10), were isolated from the mangrove plants Xylocarpus granatum, Xylocarpus moluccensis, and...

journal_title：Marine drugs

authors： Jiang ZP,Luan ZL,Liu RX,Zhang Q,Ma XC,Shen L,Wu J

更新日期：2018-12-06 00:00:00

abstract：:Astaxanthin (AXT), a xanthophyll carotenoid compound, has potent antioxidant, anti-inflammatory and neuroprotective properties. Neuroinflammation and oxidative stress are significant in the pathogenesis and development of Alzheimer's disease (AD). Here, we studied whether AXT could alleviate neuroinflammation, oxidati...

journal_title：Marine drugs

authors： Han JH,Lee YS,Im JH,Ham YW,Lee HP,Han SB,Hong JT

更新日期：2019-02-18 00:00:00