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https://www.readbyqxmd.com/read/28228679/a-new-species-of-aspidophryxus-isopoda-dajidae-ectoparasitic-on-mysidella-hoshinoi-mysidae-in-japan
#1
Michitaka Shimomura
A new dajid, Aspidophryxus izuensissp. n., is described from seven females and six males found infesting the dorsal carapaces of specimens of Mysidella hoshinoi Shimomura, 2016 (Mysidae: Mysidellinae) associated with an unidentified species of sea anemone (Haloclavidae) from Izu-Oshima Island, Sagami Sea, central Japan. Aspidophryxus izuensis sp. n. differs from its congeners in having a body length about as long as wide, widest at the anterior part in females; an elongate frontal part of the cephalon, half as long as wide in females; the frontal margin of the cephalon exceeding the anterior margins of lateral lamellae in females; an unsegmented, vermiform, elongate pleon in females; and a uropod composed of a protopod and an inner and outer ramus in males...
2017: ZooKeys
https://www.readbyqxmd.com/read/28228674/towards-a-revision-of-the-genus-periclimenes-resurrection-of-ancylocaris-schenkel-1902-and-designation-of-three-new-genera-crustacea-decapoda-palaemonidae
#2
Zdeněk Ďuriš, Ivona Horká
Based on recently published molecular phylogenies of Indo-West Pacific palaemonid shrimps and further morphological evidence, the systematic position of several species of the polyphyletic genus Periclimenes is revised. The generic name Ancylocaris Schenkel, 1902 is re-established for the anemone-associated Periclimenes brevicarpalis. Actinimenesgen. n., is proposed for the anemone-associated Periclimenes inornatus, Periclimenes ornatellus and Periclimenes ornatus, all of which have a subspatulate first pereiopod...
2017: ZooKeys
https://www.readbyqxmd.com/read/28222763/the-discovery-of-novel-lpmo-families-with-a-new-hidden-markov-model
#3
Gerben P Voshol, Erik Vijgenboom, Peter J Punt
BACKGROUND: Renewable biopolymers, such as cellulose, starch and chitin are highly resistance to enzymatic degradation. Therefore, there is a need to upgrade current degradation processes by including novel enzymes. Lytic polysaccharide mono-oxygenases (LPMOs) can disrupt recalcitrant biopolymers, thereby enhancing hydrolysis by conventional enzymes. However, novel LPMO families are difficult to identify using existing methods. Therefore, we developed a novel profile Hidden Markov model (HMM) and used it to mine genomes of ascomycetous fungi for novel LPMOs...
February 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28219642/synergy-of-raddeanin-a-and-cisplatin-induced-therapeutic-effect-enhancement-in-human-hepatocellular-carcinoma
#4
Li Jian-Nan, Yu Ye, Zhang Yan-Fei, Li Zhi-Meng, Cai Guang-Zhi, Gong Ji-Yu
Cisplatin is a main compound for human hepatocellular carcinoma (HCC) chemotherapies, but it has certain cytotoxicity during applications. To release that, combining with other drugs are being as a regular plan in clinic. In our present study, we are focusing on one of active monomers extracted from Anemone Raddeana Regel, Raddeanin A (RA), which is on behalf of the same character like cisplatin in the tumor remedies. In order to investigate whether combination usage of RA and cisplatin can be priority to the later drug's effect development and its toxicity reduction in HCC, both of two drugs were treated 24 h or 48 h in QGY-7703 cells for estimating their abilities in tumor cell proliferation inhibition...
February 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28203295/management-of-anaemia-in-oncohaematological-patients-treated-with-biosimilar-epoetin-alfa-results-of-an-italian-observational-retrospective-study
#5
Giovanni Rosti, Mario Petrini, Alberto Bosi, Piero Galieni, Daniele Bernardi, Gianfranco Giglio, Laura Dorotea, Brunangelo Falini, Elvira Scelzi, Enzo Veltri, Roberto Castelli, Chiara Longagnani, Tommaso Raggi, Federico Simonetti
BACKGROUND: Many patients with solid tumours or nonmyeloid haematopoietic tumours develop symptomatic anaemia, which has a major impact on quality of life (QoL). The efficacy of erythropoiesis-stimulating agents (ESAs) in improving QoL and reducing blood transfusions has been widely demonstrated. Binocrit® (biosimilar epoetin alfa) is an ESA indicated in the European Union for treating chemotherapy-induced anaemia. The aim of this study was to investigate the effect of Binocrit® on haemoglobin (Hb) levels in anaemic cancer patients in Italian clinical practice...
January 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28203041/body-size-and-symbiotic-status-influence-gonad-development-in-aiptasia-pallida-anemones
#6
Judith F Carlisle, Grant K Murphy, Alison M Roark
Pale anemones (Aiptasia pallida) coexist with dinoflagellates (primarily Symbiodinium minutum) in a mutualistic relationship. The purpose of this study was to investigate the role of these symbionts in gonad development of anemone hosts. Symbiotic and aposymbiotic anemones were subjected to light cycles that induced gametogenesis. These anemones were then sampled weekly for nine weeks, and gonad development was analyzed histologically. Anemone size was measured as mean body column diameter, and oocytes or sperm follicles were counted for each anemone...
2017: Symbiosis
https://www.readbyqxmd.com/read/28196786/assessing-the-chronic-toxicity-of-copper-and-aluminium-to-the-tropical-sea-anemone-exaiptasia-pallida
#7
Melanie A Trenfield, Joost W van Dam, Andrew J Harford, David Parry, Claire Streten, Karen Gibb, Rick A van Dam
The world's most productive bauxite mines and alumina refineries are located in tropical or sub-tropical regions. The discharge water from alumina refineries can contain elevated aluminium (Al, <0.45µm fraction), from 30 to 1000μg/L. There is a need for additional information on the toxicity of Al to aquatic organisms to improve the environmental regulation and management of alumina refinery operations in tropical coastal regions. A 14-d chronic toxicity test was developed for the tropical sea anemone Exaiptasia pallida...
February 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28194851/inversion-of-the-side-chain-stereochemistry-of-indvidual-thr-or-ile-residues-in-a-protein-molecule-impact-on-the-folding-stability-and-structure-of-the-shk-toxin
#8
Bobo Dang, Rong Shen, Tomoya Kubota, Kalyaneswar Mandal, Francisco Bezanilla, Benoit Roux, Stephen B H Kent
ShK toxin is a cysteine-rich 35-residue protein ion-channel ligand isolated from the sea anemone Stichodactyla helianthus. In this work, we studied the effect of inverting the side chain stereochemistry of individual Thr or Ile residues on the properties of the ShK protein. Molecular dynamics simulations were used to calculate the free energy cost of inverting the side-chain stereochemistry of individual Thr or Ile residues. Guided by the computational results, we used chemical protein synthesis to prepare three ShK polypeptide chain analogues, each containing either an allo-Thr or an allo-Ile residue...
February 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28173991/damage-of-eukaryotic-cells-by-the-pore-forming-toxin-sticholysin-ii-consequences-of-the-potassium-efflux
#9
Sheila Cabezas, Sylvia Ho, Uris Ros, María E Lanio, Carlos Alvarez, F Gisou van der Goot
Pore-forming toxins (PFTs) form holes in membranes causing one of the most catastrophic damages to a target cell. Target organisms have evolved a regulated response against PFTs damage including cell membrane repair. This ability of cells strongly depends on the toxin concentration and the properties of the pores. It has been hypothesized that there is an inverse correlation between the size of the pores and the time required to repair the membrane, which has been for long a non-intuitive concept and far to be completely understood...
February 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28168117/boxer-crabs-induce-asexual-reproduction-of-their-associated-sea-anemones-by-splitting-and-intraspecific-theft
#10
Yisrael Schnytzer, Yaniv Giman, Ilan Karplus, Yair Achituv
Crabs of the genus Lybia have the remarkable habit of holding a sea anemone in each of their claws. This partnership appears to be obligate, at least on the part of the crab. The present study focuses on Lybia leptochelis from the Red Sea holding anemones of the genus Alicia (family Aliciidae). These anemones have not been found free living, only in association with L. leptochelis. In an attempt to understand how the crabs acquire them, we conducted a series of behavioral experiments and molecular analyses...
2017: PeerJ
https://www.readbyqxmd.com/read/28150733/transcriptomic-investigation-of-wound-healing-and-regeneration-in-the-cnidarian-calliactis-polypus
#11
Zachary K Stewart, Ana Pavasovic, Daniella H Hock, Peter J Prentis
Wound healing and regeneration in cnidarian species, a group that forms the sister phylum to Bilateria, remains poorly characterised despite the ability of many cnidarians to rapidly repair injuries, regenerate lost structures, or re-form whole organisms from small populations of somatic cells. Here we present results from a fully replicated RNA-Seq experiment to identify genes that are differentially expressed in the sea anemone Calliactis polypus following catastrophic injury. We find that a large-scale transcriptomic response is established in C...
February 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28117771/inducing-complete-polyp-regeneration-from-the-aboral-physa-of-the-starlet-sea-anemone-nematostella-vectensis
#12
Patricia Bossert, Gerald H Thomsen
Cnidarians, and specifically Hydra, were the first animals shown to regenerate damaged or severed structures, and indeed such studies arguably launched modern biological inquiry through the work of Trembley more than 250 years ago. Presently the study of regeneration has seen a resurgence using both "classic" regenerative organisms, such as the Hydra, planaria and Urodeles, as well as a widening spectrum of species spanning the range of metazoa, from sponges through mammals. Besides its intrinsic interest as a biological phenomenon, understanding how regeneration works in a variety of species will inform us about whether regenerative processes share common features and/or species or context-specific cellular and molecular mechanisms...
January 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28081477/pharmacokinetic-studies-of-active-triterpenoid-saponins-and-the-total-secondary-saponin-from-anemone-raddeana-regel
#13
Dandan Zhang, Tianli Lei, Chongning Lv, Huimin Zhao, Haiyan Xu, Jincai Lu
The rhizome of Anemone raddeana Regel, a Traditional Chinese Medicine (TCM) which has a robust history treating rheumatism and neuralgia. The total secondary saponin (TSS) from it has demonstrated antitumor activity. In this study, a rapid and validated LC-MS/MS method was developed to simultaneously determine the active compounds (Hederacolchiside A1 and Eleutheroside K). Analytes were separated on a reverse-phase C18 column with acetonitrile-water (5mmol/L ammonium acetate) as the mobile phase. This assay showed acceptable linearity (r>0...
January 3, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28077580/peptide-from-sea-anemone-metridium-senile-affects-transient-receptor-potential-ankyrin-repeat-1-trpa1-function-and-produces-analgesic-effect
#14
Yulia A Logashina, Irina V Mosharova, Yulia V Korolkova, Irina V Shelukhina, Igor A Dyachenko, Victor A Palikov, Yulia A Palikova, Arkadii N Murashev, Sergey A Kozlov, Klara Stensvåg, Yaroslav A Andreev
The transient receptor potential ankyrin-repeat 1 (TRPA1) is an important player in pain and inflammatory pathways. It is a promising target for novel drug development for the treatment of a number of pathological states. A novel peptide producing a significant potentiating effect on allyl isothiocyanate- and diclofenac-induced currents of TRPA1 was isolated from the venom of sea anemone Metridium senile. It is a 35-amino acid peptide cross-linked by two disulfide bridges named τ-AnmTX Ms 9a-1 (short name Ms 9a-1) according to a structure similar to other sea anemone peptides belonging to structural group 9a...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28073024/anemonefishes
#15
William E Feeney, Rohan M Brooker
Feeney and Brooker introduce sea-anemone associated fish.
January 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28066713/sequencing-and-de-novo-transcriptome-assembly-of-anthopleura-dowii-verrill-1869-from-mexico
#16
Jorge-Tonatiuh Ayala-Sumuano, Alexei Licea-Navarro, Enrique Rudiño-Piñera, Estefanía Rodríguez, Claudia Rodríguez-Almazán
Next-generation technologies for determination of genomics and transcriptomics composition have a wide range of applications. Moreover, the development of tools for big data set analysis has allowed the identification of molecules and networks involved in metabolism, evolution or behavior. By natural habitats aquatic organisms have implemented molecular strategies for survival, including the production and secretion of toxic compounds for their predators; therefore these organisms are possible sources of proteins or peptides with potential biotechnological application...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/28003055/determination-and-speciation-of-cadmium-in-microcosms-with-bunodosoma-caissarum-and-perna-perna-using-isotopically-enriched-116-cd
#17
Nafisa Rizzini Ansari, Nerea Fernández Iglesias, Renato Campello Cordeiro, Marcos Antônio Fernandez, Jörg Bettmer
The study of the uptake and distribution of elements in marine environments is of great interest for understanding their pathways and accumulation. Here, we investigated in laboratory experiments the accumulation behavior of Cd in the sea anemone Bunodosoma caissarum and the mussel Perna perna. Specimens were incubated with isotopically enriched (116)Cd in aquariums. Cd concentrations in the seawater and in the tissues of B. caissarum and P. perna were followed by inductively coupled plasma-mass spectrometry (ICP-MS) by means of isotope dilution analysis...
December 18, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27983679/kunitz-type-peptide-hcrg21-from-the-sea-anemone-heteractis-crispa-is-a-full-antagonist-of-the-trpv1-receptor
#18
Margarita Monastyrnaya, Steve Peigneur, Elena Zelepuga, Oksana Sintsova, Irina Gladkikh, Elena Leychenko, Marina Isaeva, Jan Tytgat, Emma Kozlovskaya
Sea anemone venoms comprise multifarious peptides modulating biological targets such as ion channels or receptors. The sequence of a new Kunitz-type peptide, HCRG21, belonging to the Heteractis crispa RG (HCRG) peptide subfamily was deduced on the basis of the gene sequence obtained from the Heteractis crispa cDNA. HCRG21 shares high structural homology with Kunitz-type peptides APHC1-APHC3 from H. crispa, and clusters with the peptides from so named "analgesic cluster" of the HCGS peptide subfamily but forms a separate branch on the NJ-phylogenetic tree...
December 15, 2016: Marine Drugs
https://www.readbyqxmd.com/read/27980125/warm-preconditioning-protects-against-acute-heat-induced-respiratory-dysfunction-and-delays-bleaching-in-a-symbiotic-sea-anemone
#19
Thomas D Hawkins, Mark E Warner
Preconditioning to non-stressful warming can protect some symbiotic cnidarians against the high temperature-induced collapse of their mutualistic endosymbiosis with photosynthetic dinoflagellates (Symbiodinium spp.), a process known as bleaching. Here, we sought to determine if such preconditioning is underpinned by differential regulation of aerobic respiration. We quantified in vivo metabolism and mitochondrial respiratory enzyme activity in the naturally symbiotic sea anemone Exaiptasia pallida preconditioned to 30°C for>7 weeks as well as anemones kept at 26°C...
December 15, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27974905/autophagy-protects-from-raddeanin-a-induced-apoptosis-in-sgc-7901-human-gastric-cancer-cells
#20
Yu-Hao Teng, Jie-Pin Li, Shen-Lin Liu, Xi Zou, Liang-Hua Fang, Jin-Yong Zhou, Jian Wu, Song-Yang Xi, Yan Chen, Ying-Ying Zhang, Song Xu, Rui-Ping Wang
Raddeanin A (RA) is an extractive from Anemone raddeana Regel, a traditional Chinese medicine. The aim of this study is to assess the efficacy of RA against human gastric cancer (GC) cells (SGC-7901) and explore its mechanism. MTT assay showed that RA inhibition of proliferation of SGC-7901 cells increased in a dose-dependent manner. Flow cytometry analysis and Hoechst 33258 staining showed that RA induced apoptosis on SGC-7901 cells. Meanwhile, it induced autophagy. Western blotting analysis showed that the RA induces apoptosis and autophagy by activating p38 MAPK pathway and inhibiting mTOR pathway...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
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