Instead, higher doses of these antioxidants were unable to protect neuronal PC12 cells during NGF deprivation and significantly decreased survival even under control conditions (CTR-NGF), as shown by OLP 500 μg/mL (Figure 2(d)), CRC 100 μM (Figure 2(e)), ALA 100 μM (Figure 2(h)), CoQ 10–100 μM (Figure 2(j)), and Sel 100 nM (Figure 2(k)). Here, NGF is linked to colorectal carcinoma.