highly significantp ≤ 0.001
* Indicates significant differences ( p ≤ 0.05), ** indicates very significant differences ( p ≤ 0.01), and *** indicates highly significant differences ( p ≤ 0.001) compared with the negative control (lymphocytes without treatment), while § indicates significant differences ( p ≤ 0.05) compared with the positive control (sodium arsenite).