0000000000070546
AUTHOR
M Cammarata
Bio-plastic recognition by mussels hemocytes
The growing use of bio-polymers derivatives poses an increasingly pressing problem regarding their environmental sustainability. In particular, it should be still ascertained the claimed absence of direct and indirect influence on ecosystems and the health of living organisms, including humans. Our goal was about assessing the potential effects of poly-lactates and polyhydroxyalkanoates, the most widely used bio polymers classes with promising different applications for replacing conventional plastics on natural aquatic environments. We chose M. galloprovincialis as sentinel species since their extensive filter-feeding activity. When it is exposed to microparticles can bioaccumulate them in…
Tentacles regeneration in Anemonia viridis (Anthozoa, Cnidaria).
The multiple potentialities of anthozoans: analyses and comparisons between animal models
Anthozoans are the richest class of species of the phylum Cnidaria. They are a candidate group for studying the evolution of mutualisms and immunity and despite their morphological simplicity exhibit a repertoire of immunological components with large genomes and gene families similar to those of the Bilateria. Like other invertebrates, anthozoans immunity is based on self/non-self recognition mechanisms and allorecognition responses, therefore, maintaining their integrity and responding actively to selection pressures. Highlight and investigate the link between innate immunity, homeostasis maintenance, inflammation, tissue remodelling and regeneration in Anthozoa could be useful to elucida…
Time-resolved X-ray scattering as a tool to probe heme proteins structural dynamics in solution
Time-resolved wide-angle X-ray scattering (TR-WAXS) is a recently developed technique allowing to probe global structural changes of proteins in solution. We have used TR-WAXS to investigate large conformational changes of heme proteins (wild-type and mutant hemoglobin, neuroglobin, etc.) that cannot take place when these macromolecules are in a crystalline environment. Our data revealed detailed information on kinetic and thermodynamic properties of the investigated proteins and demonstrate the potentiality of the TR-WAXS technique.
Tracking the structural dynamics of proteins in solution using time-resolved wide-angle X-ray scattering (vol 5, pg 881, 2008)
Un allestimento / The exhibition display
Disegni del progetto e foto della realizzazione di un allestimento / Drawings, design and pictures of an exhibition display
Una passeggiata urbana, Palermo 17.12.2007 (fotografie)
18 fotografie a descrizione di una passeggiata urbana a palermo, nella città degli anni '70
Risposta sismica di edifici prefabbricati isolati con dispositivi elastomerici
The paper concerns the seismic behavior of precast concrete industrial buildings with an elevation equipped with seismic isolators. It’s examined a building with rectangular plan of m 40x 50. The structure is constituted of columns of square cross-section of 0.6 m, with continuum beams foundation. The desk is made with T section beams for each frame connected by Gerber joints in the main direction and they support precast pre-tensioned tiles with shape. A plate of concrete is casted of the wing tiles for obtain a connected rigid deck. At the top of the pillars will be placed rubber bearings having high dissipation capacity (HDRB). The dynamic behavior of the structure under recorded real …
Actinins as novel broad-spectrum AMP isolated from the tentacle of Anthozoan Actinia equina (Linnaeus, 1758)
Capturing activities and defense mechanisms of Cnidarian are strongly associated with toxins and peptide with antimicrobial properties. AMP are an important component of many organisms’ innate immune system with a good inhibitory or killing effect against invaders pathogens. We investigated the AMP activity of acid extracts obtained from tentacle and body of Actinia equina (Cnidaria, Anthozoa) against Gram positive (Micrococcus lysodeikticus) and Gram negative (Escherichia coli, Vibrio alginolyticus) bacteria. The peptide fractions showed interesting minimum inhibitory concentrations (MIC) values (concentrations up to 0.125 μg/ml) against tested pathogens. Tentacle acid extracts exhibiting …
The Mediterranean anthozoan Anemonia viridis (Forsskål, 1775) for the study of inflammation and regeneration
Regenerative capability in anthozoans is an important adaptive strategy for their survival to environmental disturbance of natural and anthropogenic origin such as predation or anchoring, that can cause injuries or removal of entire parts of the animal body, and it can be also considered indirectly a further tool of innate immune system. In the context of “self”-“non self” recognition, is significant the interaction with the endosymbiont of the genus Symbiodinium and the recognition of pathogens and foreign agents capable of invading the injured tissues. From these premises and the growing stressors that can cause injuries, it is significant to understand how species respond to physical dam…
Mucosal immunity response of European eel (Anguilla anguilla L.) after bacterial infections
F-type lectin from serum of Trematomus bernacchii (Boulenger, 1902): purification, characterization and bacterial agglutinating activity
Basic approach of inflammation, injury and regeneration in Anemonia viridis
The potential for tissue regeneration is a powerful adaptive strategy essential to the survival of individuals. It allows to face wounds or loss of body parts induced by predation, anthropic actions or environmental factors. In light of the high probability of increasing levels of disturbances caused by injuries and the increasing possibility of invasion of microbes and foreign agents in the tissues of anthozoans, it is crucial to determine how the species respond to wounds and physical damage and understand the capacity of recovering and tissues regeneration. From this point of view, the regeneration capacity of Anthozoa it could be considered an additional arm of innate immune defence and…