**6. Conclusion**

In conclusion, the distribution and concentration of VC in different organs are closely related to its requirements, and its pharmacokinetic properties are linked to the functions it performs in tissues. VC is an active compound that affects various intracellular processes, including epigenetic regulation of gene expression,

*The Role of Vitamin C in Preventing Some Neurodegenerative Diseases: Alzheimer's, Parkinson's… DOI: http://dx.doi.org/10.5772/intechopen.112185*

intracellular signaling, and modulation of redox status. Due to its antioxidant effect, VC has gained significant interest. Considering its involvement in numerous biochemical and biological processes, it is crucial to compensate for its deficiency in patients. Determining the optimal timing, dosage, duration, and target population among critically ill patients is essential for maximizing the benefits of VC administration. VC should be a focal point in future research as an adjunct therapy for patient treatments.
