Background: The central nervous system (CNS) is involved in organic integration. Nervous
modulation via bioactive compounds can modify metabolism in order to prevent systemic noncommunicable
diseases (NCDs). Concerning this, plant polyphenols are proposed as neurotropic chemopreventive/
therapeutic agents, given their redox and regulating properties.
Objective: To review polyphenolic pharmacology and potential neurological impact on NCDs.
Method: First, polyphenolic chemistry was presented, as well as pharmacology, i.e. kinetics and dynamics.
Toxicology was particularly described. Then, functional relevance of these compounds was
reviewed focusing on the metabolic CNS participation to modulate NCDs, with data being finally integrated.
Results: Oxidative stress is a major risk factor for NCDs. Polyphenols regulate the redox biology of
different organic systems including the CNS, which participates in metabolic homeostasis. Polyphenolic
neurotropism is determined by certain pharmacological characteristics, modifying nervous and systemic
physiopathology, acting on several biological targets. Nonetheless, because these phytochemicals
can trigger toxic effects, they should not be recommended indiscriminately.
Conclusion: Summing up, the modulating effects of polyphenols allow for the physiological role of
CNS on metabolism and organic integration to be utilized in order to prevent NCDs, without losing
sight of the risks.