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Toad

About: Toad is a research topic. Over the lifetime, 1624 publications have been published within this topic receiving 28732 citations.


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Journal Article
TL;DR: The effect of the anticancer drug adriamycin on the morphology of the erythrocytes as well as some blood parameters were studied in the Egyptian toad Bufo regularis.
Abstract: The effect of the anticancer drug adriamycin on the morphology of the erythrocytes as well as some blood parameters were studied in the Egyptian toad Bufo regularis. Injecting the toads subcutaneously in the dorsal lymph sac with adriamycin at a dose level of 2 mg/kg body weight once every three weeks for 12 weeks induced the formation of abnormalities in the cytoplasm and nuclei of the erythrocytes. Its administration also caused severe anaemia, since the number of red blood corpuscles, haemoglobin content and haematocrit values were obviously decreased throughout the whole experimental period. The total leucocytic count was also diminished. On the other hand, the erythrocyte sedimentation rate was increased all over the experiment.

1 citations

DOI
01 Jan 1998
TL;DR: In this paper, the effects of Sodium Chloride and Sodium Gluconate Concentration on Hydration Behavior and Water Transport in the Red spotted Toad, Bufo punctatus by Polly Ann Sullivan Dr. Karin Hoff and Dr. Stan Hillyard.
Abstract: Effects of Sodium Chloride and Sodium Gluconate Concentration on Hydration Behavior and Water Transport in the Red spotted Toad, Bufo punctatus by Polly Ann Sullivan Dr. Karin Hoff and Dr. Stan Hillyard, Examination Committee Co-chairs Professors of Biology University of Nevada, Las Vegas Toads hydrate from standing water or moist substrates by osmotic absorbtion across the ventral skin. On land toads adopt a distictive posture called the water absorption response (WR) to maximize contact with the substrate and facilitate water absorption. Experiments using hydration behavior on moist substrates and rehdration rate in standing water or salt solutions in dehydrated Red-spotted toads (fiufo punctatus) were used to demonstrate that: 1) toads can distinguish among NaCl concentrations, 2) NaCl facilitates water uptake across the skin, and 3) transport of the chloride anion facilitates sodium uptake and affects sodium detection by the toad. The results of these studies also strongly suggest that general osmotic mechanisms as well as epithelial sodium channels function in chemosensation across the amphibian skin and that the ventral skin and the feet may have different roles in chemosensation.
Journal ArticleDOI
TL;DR: Although the drug disrupted the learned aversion, there was evidence that the noxious consequences of puromycin itself produced a generalized aversion in the feeding situation which interacted with the effects on memory.
Abstract: Toads were tested to determine whether puromycin could produce memory blockage of a learned aversion for stinging honeybees. Although the drug disrupted the learned aversion, there was evidence that the noxious consequences of puromycin itself produced a generalized aversion in the feeding situation which interacted with the effects on memory.
Journal ArticleDOI
TL;DR: Using 24Na it is evident that the bound sodium can be more readily labeled with 24Na from the mucosal side of the bladder, than with 24 Na from the serosal side, which supports the theory that the phospholipids play an important role in active sodium transport.
Abstract: Summary The phospholipids of the toad bladder bind sodium. Using 24Na it is evident that the bound sodium can be more readily labeled with 24Na from the mucosal side of the bladder, than with 24Na from the serosal side. This observation supports the theory that the phospholipids play an important role in active sodium transport.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202348
2022118
202112
202012
201913
20188