Results 101 to 110 of about 961 (166)

Isoform-specific quantification of metallothionein in the terrestrial gastropod Helix pomatia I. molecular, biochemical, and methodical background

Environmental Toxicology and Chemistry, 2004
Abstract The biomarker concept is an important approach of modern ecotoxicology based on the detection and quantification of molecular, biochemical, cellular, or physiological alterations in organisms as the result of exposure to toxic compounds.
Reinhard Dallinger, Monika Chabicovsky, Burkhard Berger   +2 more
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Immunocytochemical localization of neuropeptide F-Immunoreactivity in the circumoesophageal ganglia of the gastropod mollusc, Helix aspersa using electron microscopy

Tissue and Cell, 1994
Neuropeptide F (NPF)-immunoreactivity has been localized by electron microscopy in the central nervous system of the gastropod mollusc, Helix aspersa using a region-specific antiserum in conjunction with post-embedding immunogold labelling. The specific antiserum employed, designated NPF3, was raised to a synthetic N-terminal fragment of H. aspersa NPF.
Po Sing Leung, G.P. Brennan, D.W. Halton, C. Shaw, Aaron G. Maule, G. Brent Irvine   +5 more
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Experiments with the Isolated Heart of the Gastropod Helix Pomatia in an Artificial Pericardium

Journal of Experimental Biology, 1972
ABSTRACT Isolated hearts of Helix pomatia could be maintained for 3–4 days at 19 °C in physiological saline. Co-ordination was soon lost, but irregular twitches could be observed for up to 115 h. A perfusion apparatus was designed which supplied a simulated venous return pressure of 8 cm saline and enabled in vitro survival of ...
G. W. Civil, T. E. Thompson
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Structure and in vitro cytocompatibility of the gastropod shell of Helix pomatia

Tissue and Cell, 2006
Distinguishing features of biological constructions are high stability and adaptation to their environment. Beside biocompatibility, nontoxicity and degradability these characteristics are demanded for new biomaterials in the field of tissue engineering. This study investigated the chemical composition, the organization and the in vitro osteoconductive
Maria Bächle, U. Hübner, Ralf‐Joachim Kohal, Jin Han, Margit Wiedmann‐Al‐Ahmad   +4 more
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Contamination of terrestrial gastropods, Helix aspersa maxima, with 137Cs, 85Sr, 133Ba and 123mTe by direct, trophic and combined pathways

Journal of Environmental Radioactivity, 2006
(137)Cs, (85)Sr, (133)Ba and (123m)Te contaminations of terrestrial gastropods, Helix aspersa maxima, by direct deposition, labelled food ingestion or combined (trophic and direct pathways) exposure were carried out under laboratory conditions. The aim of this study was to compare the three contamination pathways: direct, trophic and combined, in terms
C. Madoz-Escande, Olivier Simon
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Immunofluorescent evidence of an FMREamide-like peptide in the peripheral nervous system of the gastropod mollusc Helix aspersa

Neuroscience Letters, 1983
An antiserum raised against the FMRFamide peptide revealed a highly developed peripheral nervous system in the mollusc Helix aspersa. Immunoreactive fibres associated with muscular fibres are observed in all organs. Cell bodies are frequently seen, for example in the digestive and genital tracts.
J Cardot, D. Fellman
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Melatonin and 5-methoxytryptophol (5-ML) in nervous and/or neurosensory structures of a gastropod mollusc (Helix aspersa maxima): synthesis and diurnal rhythms

General and Comparative Endocrinology, 2003
Daily patterns of melatonin and 5-methoxytryptophol (5-ML) concentrations and of aryl alkylamine N-acetyltransferase (AA-NAT) and hydroxyindole-O-methyltransferase (HIOMT) activities have been measured in the cerebroid ganglions, visceral ganglions, and ocular tentacles of the gastropod mollusc Helix aspersa maxima.
Alain Blanc, B. Vivien‐Roels, Paul Pévet, Joël Attia, Bernard Buisson   +4 more
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Isoform-specific quantification of metallothionein in the terrestrial gastropod Helix pomatia. II. A differential biomarker approach under laboratory and field conditions

Environmental Toxicology and Chemistry, 2004
Abstract The two function-specific metallothionein (MT) isoforms characterized from the midgut gland and mantle tissue of Helix pomatia differ substantially in their metal-binding preferences, as well as molecular and biochemical features.
Reinhard Dallinger, Monika Chabicovsky, Bernhard Lagg, Rouven Schipflinger, Harald G. Weirich, Burkhard Berger   +5 more
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Involvement of glycans in the immunological cross-reaction between α-macroglobulin and hemocyanin of the gastropod Helix pomatia

Biochimie, 2009
By tandem-crossed immunoelectrophoresis and ELISA experiments an immunological relationship was observed between alpha-macroglobulin (alphaM) and hemocyanin (Hc) of the terrestrial snail Helix pomatia. Both glycoproteins occur in the hemolymph: alphaM (minor component) as a specific proteinase inhibitor, Hc (consisting of three components: alpha(D)-HpH,
Nurul Islam Siddiqui, Yinges Yigzaw, Gisèle Préaux, Constant Gielens   +3 more
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Aromatic alcohol oxidase and aldehyde oxidase activities in the digestive gland of three species of terrestrial gastropod (Helix aspersa, arion ater, limax flavus)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1993
1. Digestive gland homogenates of three species of terrestrial gastropod mollusc were used to prepare sources of soluble aldehyde oxidase and solubilized aromatic alcohol oxidase activities. 2. The snail (Helix aspersa) had two aldox isoenzymes each able to utilize salicylaldehyde whereas two slug species had a single apparent activity inhibitable by ...
Andrew T. Large, Martin Connock
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