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Etoposide, an epipodophyllotoxin. Epipodophyllotoxins are substances naturally occurring in the root of American Mayapple plant (Podophyllum peltatum). Some epipodophyllotoxin derivatives are currently used in the treatment of cancer. These include etoposide and teniposide. They act as anti-cancer drugs by inhibiting topoisomerase II. [1]
Etoposide, sold under the brand name Vepesid among others, is a chemotherapy medication used for the treatments of a number of types of cancer including testicular cancer, lung cancer, lymphoma, leukemia, neuroblastoma, and ovarian cancer. [2] It is also used for hemophagocytic lymphohistiocytosis. [3] It is used by mouth or injection into a ...
Half maximal inhibitory concentration (IC 50) is a measure of the potency of a substance in inhibiting a specific biological or biochemical function. IC 50 is a quantitative measure that indicates how much of a particular inhibitory substance (e.g. drug) is needed to inhibit, in vitro , a given biological process or biological component by 50% ...
Etoposide is a highly schedule-dependent drug and is typically administered orally and recommended to take twice the dosage for effective treatment. [ 13 ] [ 68 ] However, with the selective dosage, etoposide treatment is dose limiting proposing toxic effects like myelosupression (leukopenia) and primarily hematologic.
For competition binding assays and functional antagonist assays IC 50 is the most common summary measure of the dose-response curve. For agonist/stimulator assays the most common summary measure is the EC 50. [6] The EC 50 is also related to IC 50 which is a measure of a compound's inhibition (50% inhibition).
Side effects in dogs and cats include hypersalivation, diarrhea, loss of appetite, and vomiting. [12] [16] Eight percent of dogs taking maropitant at doses meant to prevent motion sickness vomited right after, likely due to the local effects maropitant had on the gastrointestinal tract. Small amounts of food beforehand can prevent such post ...
The PDBbind database is a comprehensive collection of experimentally measured binding affinity data (Kd, Ki, and IC50) for the protein-ligand complexes deposited in the Protein Data Bank (PDB). [ 1 ] [ 2 ] It thus provides a link between energetic and structural information of protein-ligand complexes, which is of great value to various studies ...
Toxic units (TU) are used in the field of toxicology to quantify the interactions of toxicants in binary mixtures of chemicals. [1] A toxic unit for a given compound is based on the concentration at which there is a 50% effect (ex. EC50) for a certain biological endpoint.
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