Results 191 to 200 of about 7,425 (236)
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Ionic regulation in the snail, Helix aspersa
Comparative Biochemistry and Physiology, 1968Abstract 1. 1. Sodium in the blood of Helix aspera varied between 58 and 138 mM/l. and other cations comparably. 2. 2. In specimens that had fasted 1–11 days and had then been in contact with water for 2 hr, sodium, potassium, calcium and magnesium averaged 68 ± S.D. 6, 2·9 ± S.D. 0·3, 6·2 ± S.D. 1·1 and 3·6 ± S.D.
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Dissection of a Snail (Helix pomatia)
2016Availability: Roman snails (Helix pomatia) like places which are dark and damp. In spring and autumn, they are most active and easy to collect. When it’s dry or cold, they seal themselves up; they hibernate in winter and aestivate in summer. During these periods giant Ghana snail (Achatina sp.) can be purchased from zoos instead.
Péter Lőw +2 more
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K + Channels in Cardiomyocytes of the Pulmonate Snail Helix
Journal of Membrane Biology, 2004We used the patch-clamp technique to identify and characterize the electrophysiological, biophysical, and pharmacological properties of K(+) channels in enzymatically dissociated ventricular cells of the land pulmonate snail Helix. The family of outward K(+) currents started to activate at -30 mV and the activation was faster at more depolarized ...
S A, Kodirov +4 more
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Specific insulin binding sites in snail (Helix aspersa) ganglia
Cellular and Molecular Neurobiology, 19891. Insulin binding sites were characterized and quantified in snail (Helix aspersa) ganglia by incubation of tissue sections with 125I-porcine insulin, autoradiography with [3H]Ultrofilm, image analysis coupled to computer-assisted microdensitometry, and comparison with 125I-standards.
J M, Saavedra +3 more
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Snail mucus − glandular origin and composition in Helix pomatia
Zoology, 2017Apart from their well-known culinary use, gastropod species such as Helix, which have a hydrogel-like mucus, are increasingly being exploited for cosmetic, bioengineering and medical applications. However, not only are the origin and composition of these "sticky" secretions far from being fully characterized, the number and morphology of the mucus ...
Greistorfer, Sophie +6 more
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Autofluorescence in the retina of a snail, Helix aspersa
Vision Research, 1978Microvilli (presumed photoreceptoral organelles) and masses of microvesicles, called photic vesicles, in the eyes of a garden snail (Helix aspersa) autofluoresce under u.v. illumination. The fluorescence lasts 20–30 sec. Under the same experimental conditions and procedures the outer segments of rods and cones of the frog Xenopus laevis (control ...
R M, Eakin, J L, Brandenburger
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The pharmacology of helix dopamine receptor of specific neurones in the snail, helix aspersa
Comparative Biochemistry and Physiology, 1968Abstract 1. 1. Dopamine was found to hyperpolarize and inhibit the spontaneous activity of certain Helix neurones. 2. 2. The inhibitory effect of dopamine was antagonized by ergometrine, ergotamine, ergotoxine, dibenyline, rogitine and yohimbine. 3. 3.
R J, Walker +4 more
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1973
Abstract 1. 1. Serological and immunological properties of heterophile anti-A agglutins from the albumin gland of Helix pomatia and H. aspersa (collected in France, Spain and South Africa) were investigated and it was found that they differ in their immunological and serological properties strikingly, even within one genus, a fact which may ...
I, Ishiyama, W, Dietz, G, Uhlenbruck
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Abstract 1. 1. Serological and immunological properties of heterophile anti-A agglutins from the albumin gland of Helix pomatia and H. aspersa (collected in France, Spain and South Africa) were investigated and it was found that they differ in their immunological and serological properties strikingly, even within one genus, a fact which may ...
I, Ishiyama, W, Dietz, G, Uhlenbruck
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“Central arousal” and sexual responsiveness in the snail, Helix aspersa
Behavioral and Neural Biology, 1991In molluscs, a "central arousal" system is thought to positively modulate both an animal's level of activity and its behavioral responsiveness. This hypothesis is examined in Helix aspersa by testing the relationships between activity, feeding, and sexual behavior. Activity, feeding, and mating exhibit parallel daily rhythms.
S A, Adamo, R, Chase
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