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Sepia officinalis

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https://www.readbyqxmd.com/read/29278693/crustacean-cardioactive-peptides-expression-localization-structure-and-a-possible-involvement-in-regulation-of-egg-laying-in-the-cuttlefish-sepia-officinalis
#1
Maxime Endress, Céline Zatylny-Gaudin, Erwan Corre, Gildas Le Corguillé, Louis Benoist, Jérôme Leprince, Benjamin Lefranc, Benoît Bernay, Alexandre Leduc, Jimmy Rangama, Anne-Gaëlle Lafont, Arnaud Bondon, Joël Henry
The cuttlefish (Sepia officinalis) is a cephalopod mollusk distributed on the western European coast, in the West African Ocean and in the Mediterranean Sea. On the Normandy coast (France), cuttlefish is a target species of professional fishermen, so its reproduction strategy is of particular interest in the context of stock management. Egg-laying, which is coastal, is controlled by several types of regulators among which neuropeptides. The cuttlefish neuropeptidome was recently identified by Zatylny-Gaudin et al...
December 24, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29249984/maternal-and-embryonic-stress-influence-offspring-behavior-in-the-cuttlefish-sepia-officinalis
#2
Caitlin E O'Brien, Christelle Jozet-Alves, Nawel Mezrai, Cécile Bellanger, Anne-Sophie Darmaillacq, Ludovic Dickel
Stress experienced during prenatal development-either applied to reproducing females (maternal stress), directly to developing offspring (embryonic stress) or in combination-is associated with a range of post-natal behavioral effects in numerous organisms. We conducted an experiment to discern if maternal and embryonic stressors affect the behavior of hatchlings of the cuttlefish Sepia officinalis, a species with features that allow for the examination of these stress types in isolation. Separating the impact of stress transmitted through the mother vs...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29223596/presence-and-persistence-of-the-amnesic-shellfish-poisoning-toxin-domoic-acid-in-octopus-and-cuttlefish-brains
#3
Vanessa M Lopes, Rui Rosa, Pedro R Costa
Domoic acid (DA) is a neurotoxin that causes degenerative damage to brain cells and induces permanent short-term memory loss in mammals. In cephalopod mollusks, although DA is known to accumulate primarily in the digestive gland, there is no knowledge whether DA reaches their central nervous system. Here we report, for the first time, the presence of DA in brain tissue of the common octopus (Octopus vulgaris) and the European cuttlefish (Sepia officinalis), and its absence in the brains of several squid species (Loligo vulgaris, L...
February 2018: Marine Environmental Research
https://www.readbyqxmd.com/read/28883798/eye-development-in-sepia-officinalis-embryo-what-the-uncommon-gene-expression-profiles-tell-us-about-eye-evolution
#4
Boudjema Imarazene, Aude Andouche, Yann Bassaglia, Pascal-Jean Lopez, Laure Bonnaud-Ponticelli
In metazoans, there is a remarkable diversity of photosensitive structures; their shapes, physiology, optical properties, and development are different. To approach the evolution of photosensitive structures and visual function, cephalopods are particularly interesting organisms due to their most highly centralized nervous system and their camerular eyes which constitute a convergence with those of vertebrates. The eye morphogenesis in numerous metazoans is controlled mainly by a conserved Retinal Determination Gene Network (RDGN) including pax, six, eya, and dac playing also key developmental roles in non-retinal structures and tissues of vertebrates and Drosophila...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28822865/formation-and-morphogenesis-of-a-cuttlebone-s-aragonite-biomineral-structures-for-the-common-cuttlefish-sepia-officinalis-on-the-nanoscale-revisited
#5
Vida Čadež, Srečo D Škapin, Adrijana Leonardi, Igor Križaj, Saša Kazazić, Branka Salopek-Sondi, Ivan Sondi
This study describes and examines the structural and morphological properties of the hierarchically organized, aragonite cuttlebone forms for the common cuttlefish (Sepia officinalis, L.), including its main structural parts, the dorsal shield, and the chambers. Specifically, it complements the mechanism for the self-organized formation of aragonite, identifies the presence, and determines the role of soluble organic matrix (SOM) proteins in the morphogenesis of the cuttlebone's biomineral structures on the nanoscale...
August 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28718807/melanin-and-melanin-related-polymers-as-materials-with-biomedical-and-biotechnological-applications-cuttlefish-ink-and-mussel-foot-proteins-as-inspired-biomolecules
#6
REVIEW
Francisco Solano
The huge development of bioengineering during the last years has boosted the search for new bioinspired materials, with tunable chemical, mechanical, and optoelectronic properties for the design of semiconductors, batteries, biosensors, imaging and therapy probes, adhesive hydrogels, tissue restoration, photoprotectors, etc. These new materials should complement or replace metallic or organic polymers that cause cytotoxicity and some adverse health effects. One of the most interesting biomaterials is melanin and synthetic melanin-related molecules...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28691154/digestive-enzyme-ratios-are-good-indicators-of-hatchling-yolk-reserve-and-digestive-gland-maturation-in-early-life-stages-of-cuttlefish-sepia-officinalis-l-application-of-these-new-tools-in-ecology-and-aquaculture
#7
Georges Safi, A S Martinez, C Le Pabic, E Le Bihan, J P Robin, N Koueta
In Sepia officinalis (Linnaeus, 1758), the digestive gland matures during the first month post-hatching, while a shift from intracellular acid to extracellular alkaline digestion occurs. The purpose of this study was to investigate the possibility of using enzymatic ratios for the description of digestive system maturation in early life stages of S. officinalis. Second, it is intended to apply these new tools as eco-physiological indicators for understanding the impact of cuttlefish eggs' life history from different spawning sites of the English Channel on digestive performance of juveniles...
July 10, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28619638/development-and-characterization-of-cuttlefish-sepia-officinalis-skin-gelatin-protein-isolate-blend-films
#8
Hela Kchaou, Mourad Jridi, Ola Abdelhedi, Benbettaïeb Nasreddine, Thomas Karbowiak, Moncef Nasri, Frédéric Debeaufort
In the present study, cuttlefish skin gelatin (CSG) and protein isolate (CSPI) blend films were prepared and their physicochemical and antioxidant properties were characterized. CSG (4%, w/v) was blended with CSPI (3%, w/v) at different ratios and 15% of glycerol (w/w, plasticizer/polymer dry matter). Results showed that increasing of CSPI content induced lower lightness but higher redness, yellowness and color difference values compared to CSG film. In addition, CSPI film had the lowest tensile strength (TS) and elongation at break (EAB) values...
June 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28617634/dramatic-fighting-by-male-cuttlefish-for-a-female-mate
#9
Justine J Allen, Derya Akkaynak, Alexandra K Schnell, Roger T Hanlon
Male cuttlefish compete for females with a repertoire of visually dramatic behaviors. Laboratory experiments have explored this system in Sepia officinalis, but corroborative field data have eluded collection attempts by many researchers. While scuba diving in Turkey, we fortuitously filmed an intense sequence of consort/intruder behaviors in which the consort lost and then regained his female mate from the intruder. These agonistic bouts escalated in stages, leading to fast dramatic expression of the elaborate intense zebra display and culminating in biting and inking as the intruder male attempted a forced copulation of the female...
July 2017: American Naturalist
https://www.readbyqxmd.com/read/28603503/hypoxic-induced-decrease-in-oxygen-consumption-in-cuttlefish-sepia-officinalis-is-associated-with-minor-increases-in-mantle-octopine-but-no-changes-in-markers-of-protein-turnover
#10
Juan C Capaz, Louise Tunnah, Tyson J MacCormack, Simon G Lamarre, Antonio V Sykes, William R Driedzic
The common cuttlefish (Sepia officinalis), a dominant species in the north-east Atlantic ocean and Mediterranean Sea, is potentially subject to hypoxic conditions due to eutrophication of coastal waters and intensive aquaculture. Here we initiate studies on the biochemical response to an anticipated level of hypoxia. Cuttlefish challenged for 1 h at an oxygen level of 50% dissolved oxygen saturation showed a decrease in oxygen consumption of 37% associated with an 85% increase in ventilation rate. Octopine levels were increased to a small but significant level in mantle, whereas there was no change in gill or heart...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28510430/nanoarchitecturing-of-natural-melanin-nanospheres-by-layer-by-layer-assembly-macroscale-anti-inflammatory-conductive-coatings-with-optoelectronic-tunability
#11
Taesik Eom, Kyungbae Woo, Whirang Cho, Jae Eun Heo, Daseul Jang, Jae In Shin, David C Martin, Jeong Jae Wie, Bong Sup Shim
Natural melanins are biocompatible conductors with versatile functionalities. Here, we report fabrication of multifunctional poly(vinyl alcohol)/melanin nanocomposites by layer-by-layer (LBL) assembly using melanin nanoparticles (MNPs) directly extracted from sepia officinalis inks. The LBL assembly offers facile manipulation of nanotextures as well as nm-thickness control of the macroscale film by varying solvent qualities. The time-resolved absorption was monitored during the process and quantitatively studied by fractal dimension and lacunarity analysis...
May 30, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28396639/going-up-or-sideways-perception-of-space-and-obstacles-negotiating-by-cuttlefish
#12
Gabriella Scatà, Anne-Sophie Darmaillacq, Ludovic Dickel, Steve McCusker, Nadav Shashar
While octopuses are mostly benthic animals, and squid prefer the open waters, cuttlefish present a special intermediate stage. Although their body structure resembles that of a squid, in many cases their behavior is mostly benthic. To test cuttlefish's preference in the use of space, we trained juvenile Sepia gibba and Sepia officinalis cuttlefish to reach a shelter at the opposite side of a tank. Afterwards, rock barriers were placed between the starting point and the shelter. In one experiment, direct paths were available both through the sand and over the rocks...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28378762/offshore-exposure-experiments-on-cuttlefish-indicate-received-sound-pressure-and-particle-motion-levels-associated-with-acoustic-trauma
#13
Marta Solé, Peter Sigray, Marc Lenoir, Mike van der Schaar, Emilia Lalander, Michel André
Recent findings on cephalopods in laboratory conditions showed that exposure to artificial noise had a direct consequence on the statocyst, sensory organs, which are responsible for their equilibrium and movements in the water column. The question remained about the contribution of the consequent near-field particle motion influence from the tank walls, to the triggering of the trauma. Offshore noise controlled exposure experiments (CEE) on common cuttlefish (Sepia officinalis), were conducted at three different depths and distances from the source and particle motion and sound pressure measurements were performed at each location...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28253300/the-pax-gene-family-highlights-from-cephalopods
#14
Sandra Navet, Auxane Buresi, Sébastien Baratte, Aude Andouche, Laure Bonnaud-Ponticelli, Yann Bassaglia
Pax genes play important roles in Metazoan development. Their evolution has been extensively studied but Lophotrochozoa are usually omitted. We addressed the question of Pax paralog diversity in Lophotrochozoa by a thorough review of available databases. The existence of six Pax families (Pax1/9, Pax2/5/8, Pax3/7, Pax4/6, Paxβ, PoxNeuro) was confirmed and the lophotrochozoan Paxβ subfamily was further characterized. Contrary to the pattern reported in chordates, the Pax2/5/8 family is devoid of homeodomain in Lophotrochozoa...
2017: PloS One
https://www.readbyqxmd.com/read/28247274/metal-accumulations-in-different-tissues-of-cuttlefish-sepia-officinalis-l-1758-in-the-eastern-mediterranean-coasts-of-turkey
#15
Önder Duysak, Erkan Uğurlu
In this study, metal concentration levels (Cd, Co, Cr, Ni, and Pb) were investigated in the gill, hepatopancreas, ovary, testis, and mantle of the male and female cuttlefish Sepia officinalis in various stations (Iskenderun, Antalya, Kas, Gazipasa, and Anamur) in Mediterranean coasts of Turkey. Hepatopancreas tissue was a better indicator in terms of heavy metal concentration compared to the other tissues. In general, Cd, Co, Cr, Ni, and Pb accumulation for the male was found more than that of the female, whereas Cd and Ni accumulation was found higher in the female...
April 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28183263/aryl-butenes-active-against-k562-cells-and-lacking-tyrosinase-inhibitory-activity-as-new-leads-in-the-treatment-of-leukemia
#16
Mehdi El Arbi, Emna Ketata, Aref Neifar, Wafa Mihoubi, Girish K Gupta, Pascal Pigeon, Siden Top, Ali Gargouri, Gérard Jaouen
The inhibitory effects of four series of aryl butene derivatives, active against breast cancer, on the monophenolase activity of tyrosinase, in melanin-free ink from Sepia officinalis, have been studied. Hydroxytamoxifen 1, ferrociphenol 17 and several aryl butene analogs have shown strong antiproliferative activity on hormone-dependent and hormone-independent breast cancer cells and were evaluated in leukemia K562 cell proliferation. Their potential to induce skin depigmentation by evaluating their anti-tyrosinase activity was also estimated...
February 8, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28181477/eumelanin-releasing-spongy-like-hydrogels-for-skin-re-epithelialization-purposes
#17
Lucília Pereira da Silva, Sílvia Oliveira, Rogério Pirraco, Tírcia Santos, Rui Reis, Alexandra Marques, Vitor Correlo
Melanin function in the skin has been associated to pigmentation but other properties such as electrical conductance, photoprotection, antioxidant and antimicrobial activity, have also been recognized. Nonetheless, the use of melanin in a skin wound healing context was never considered. In this sense, eumelanin particles with a typical round and nano-sized morphology and electrical conductivity of 2.09x10-8S·cm-1 were extracted from the ink of Sepia officinalis. The ability of primary human keratinocytes to phagocyte eumelanin, which was then accumulated in cytosolic vesicles and nuclei surroundings, was demonstrated...
February 9, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28018245/lateralization-of-eye-use-in-cuttlefish-opposite-direction-for-anti-predatory-and-predatory-behaviors
#18
Alexandra K Schnell, Roger T Hanlon, Aïcha Benkada, Christelle Jozet-Alves
Vertebrates with laterally placed eyes typically exhibit preferential eye use for ecological activities such as scanning for predators or prey. Processing visual information predominately through the left or right visual field has been associated with specialized function of the left and right brain. Lateralized vertebrates often share a general pattern of lateralized brain function at the population level, whereby the left hemisphere controls routine behaviors and the right hemisphere controls emergency responses...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27796978/metal-bioaccumulation-in-two-edible-cephalopods-in-the-gulf-of-gabes-south-eastern-tunisia-environmental-and-human-health-risk-assessment
#19
Lotfi Rabaoui, Radhouan El Zrelli, Rafik Balti, Lamjed Mansour, Pierre Courjault-Radé, Nabil Daghbouj, Sabiha Tlig-Zouari
Samples of Octopus vulgaris and Sepia officinalis were collected from four areas in the Gulf of Gabes, south-eastern Tunisia, and their edible tissues (mantle and arms) were analyzed for cadmium, copper, mercury, and zinc. While the concentrations of metals showed significant differences between the sampling sites, no differences were revealed between the tissues of the two species. The spatial distribution of metals analyzed showed similar pattern for both tissues of the two species, with the highest concentrations found in the central area of Gabes Gulf, and the lowest in the northern and/or southern areas...
January 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27743598/exploration-of-the-therapeutic-potential-effect-of-sepia-officinalis-in-animal-model-of-sepsis-induced-by-cecal-ligation-and-puncture
#20
Asmaa Abd El-Aleem Abd El-Latif, Amany Ahmed Sayed, Amel Mahmoud Soliman, Sohair Ramadan Fahmy
OBJECTIVE: The present investigation explored the therapeutic potential effect of Sepia officinalis body tissue (SOBT) and Sepia officinalis polysaccharide (SOP) extracts, in animal model of sepsis [induced by cecal ligation and puncture (CLP)]. MATERIALS AND METHODS: Experimental animals were divided into 4 groups, Group 1: Sham control rats. Group 2: Septic rats. Group 3: Septic rats treated with methanolic extract of Sepia officinalis body tissue (SOBT) (500mg/kg body weight) for 2days...
December 2016: Injury
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