Title:Protective Effects of Curcumin and its Analogues via the Nrf2
Pathway in Metabolic Syndrome
Volume: 31
Issue: 25
Author(s): Shahnaz Rajabi, Majid Darroudi, Kobra Naseri, Tahereh Farkhondeh*Saeed Samarghandian*
Affiliation:
- Department of Toxicology
and Pharmacology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
Keywords:
Curcumin, Nrf2 pathway, metabolic syndrome, diabetes, hypertension, obesity.
Abstract:
Metabolic Syndrome (MetS) refers to a set of medical conditions including insulin
resistance, central obesity, atherogenic dyslipidemia, and hypertension. Due to these
dysregulations, if not treated, MetS could increase the risk of CVA, CVD, and diabetes.
As described by WHO, CVD is the leading cause of mortality in the world which
motivates researchers to investigate the management of its risk factors, especially MetS.
It is reported that oxidative stress secondary to the abundant generation of free radicals
oxygen species (ROS) and the ensuing altered redox status play an important role as a
mediator in MetS. As a result, using new antioxidant agents with higher bioavailability
has been proposed as an efficient treatment.
Curcumin (a polyphenol of the diarylheptanoids class), which is used as a traditional
medicine for various diseases including cardiovascular diseases and diabetes, is characterized
by its antioxidant properties which, at least in part, are mediated via the activation of
the Nrf2/ARE signaling pathway. Nrf2 is a transcription factor that plays a key role in
regulating internal defense systems and increases antioxidant levels to decrease oxidative
damage and cell apoptosis. Nrf2 expression and stability are enhanced by curcumin, leading
to a higher rate of Nrf2 migration to the cell nucleus to regulate ARE gene expression,
thus protecting cells against oxidative stress. In this article, we provide a comprehensive
review of the molecular effect of curcumin and its derivatives via Nrf2 regulation
in several conditions, such as diabetes, hypertension, dyslipidemia, and obesity.