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Animals frogs

Animal (frog) (snake) Epibatidine Pain (non-opiate analgesic)... [Pg.260]

Intracellular Eukarya Animal Frog Xenopus laevis oocytes... [Pg.389]

Bioactive amines are also widespread in animals Avariety of structures and properties have been found in substances isolated from frogs for example One called epibatidine is a naturally occurring painkiller... [Pg.925]

Animal aquaculture is concentrated on finfish, moUuscs, and cmstaceans. Sponges, echinoderms, tunicates, turtles, frogs, and alligators are being cultured, but production is insignificant in comparison with the three principal groups. Common and scientific names of many of the species of the finfish, moUuscs, and cmstaceans currently under culture are presented in Table 2. Included are examples of bait, recreational, and food animals. [Pg.13]

Amphibians. Immunosuppression has been shown to occur during metamorphosis in several amphibians, and appears to be hormonally regulated. The disappearance of 11 populations of toad from Colorado was associated with immune suppression, and frog mortalities have been associated with infection by a commonly occurring bacteria, Aeromonas hydrophila the cause of the immunosuppression in these animals has not been elucidated. " ... [Pg.74]

Hypaphorine produces increased reflex irritability and later tetanic convulsions in frogs but has little action on other experimental animals (Plugge). The methyl ester iodide (II) has curarising properties (Folkers and Koniuszy, 1939). [Pg.387]

Still other halo-substituted compounds are providing important leads to new medicines. The compound epihatidine, for instance, has been isolated from the skin of Ecuadorian frogs and found to be more than 200 times as potent as morphine at blocking pain in animals. [Pg.332]

The major routes of uptake of xenobiotics by animals and plants are discussed in Chapter 4, Section 4.1. With animals, there is an important distinction between terrestrial species, on the one hand, and aquatic invertebrates and fish on the other. The latter readily absorb many xenobiotics directly from ambient water or sediment across permeable respiratory surfaces (e.g., gills). Some amphibia (e.g., frogs) readily absorb such compounds across permeable skin. By contrast, many aquatic vertebrates, such as whales and seabirds, absorb little by this route. In lung-breathing organisms, direct absorption from water across exposed respiratory membranes is not an important route of uptake. [Pg.21]

In vertebrates, the spectrum of w-conotoxin targets is dependent not only on the species of animal being studied, but on the w-conotoxin being used. In chicks and frogs all synapses tested are almost completely inhibited by w-conotoxin GVIA, while in rodents, w-conotoxin GVIA does not inhibit the neuromuscular synapse, and only a fraction of CNS synapses tested are blocked. In contrast, w-conotoxin MVIIA acts much more reversibly and with a much reduced affinity for many amphibian, and some mammalian, synapses. [Pg.269]

The decahydrocyclazine skeleton is also found in the alkaloid 395, currently known only by the designation 261C. This compound bears a passing resemblance to some of the myrmicarins (Section 16.6.5.2), but occurs in the skin of a totally different animal species, namely poisonous frogs of the genus Mantella <2003H(59)745>. [Pg.846]


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See also in sourсe #XX -- [ Pg.973 ]




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