To test the cytotoxicity of herbal extracts
, herbal extracts to study the effects of cell culture as a guide to determine the concentration of the extract to be used in further experiments made by the 12-well dilution-. rack Then extract diluted with culture medium to a concentration started. 100 milligrams per milliliter To add to the first hole, then 2-fold serial dilution until the 10th hole. (2 final hole as a control) to the diluted solution into the cell culture dish. 96-well culture PK13 cells by repeated 8 times per concentration. Incubation, the cells in an incubator at a temperature of 37 degrees Celsius, the humidity and 5% CO2 for 72 hours every day to observe the cells under a microscope. When incubated cells until the scheduled time, please fixation with 10% formalin solution for 20 minutes and then stained with Giemsa for 20 minutes, cells were evaluated for survival by MTT assay PK13 cells cultured in concentration. extract the most And found no abnormal cells after culture in the laboratory. To equate the highest concentration of the extract is used in the following experiments.
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