cytotoxicity of tested sample is more obvious at 48h
Well prolonged cultivation probably is needed for obvious results, plus the cells are probably decrease their viability after 48 also.
More information on the experiment would be useful...
What is your sample? Fungal proteins, bacterial proteins, intra or extracellular, ...?
How is the growth curve of your organism? Did you characterize it?
are these infected samples? siRNA-treated?
If these protein are death-related, it should make sense.
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Next step is doing qPCR. Thanks
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