Daphnia Magna Case Study

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Villegas-Navaro, A., Rosas-L, E., & Reyes L., J. (2003). The heart of Daphnia magna: effects of four cardioactive drugs. Comparative Biochemistry and Physiology Part C: Toxicology and Pharmocology , 127-134. The purpose of this article was to test four cardioactive drugs (ouabain, verapamil, metaproterenol and metoprolol) to see what effects they have on the heart rate of Daphnia magna. In this case, Daphnia were being used as a model organism to compare to the human heart. Ouabain is a toxic substance that can be found from trees. It is used as an extremely fast-working cardioactive stimulant. Verapamil is used to treat various heart problems such as high blood-pressure and angina. Metaproterenol is used to help with lung and airway conditions

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