Diet-induced hypothalamic dysfunction and metabolic disease, and the therapeutic potential of polyphenols.

Journal: Molecular metabolism

Volume: 27

Issue: 

Year of Publication: 2020

Affiliated Institutions:  Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, South Africa. Electronic address: Ebrahim.Samodien@mrc.ac.za. Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, South Africa; Department of Medical Physiology, Stellenbosch University, Tygerberg, Cape Town, South Africa. Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, South Africa. Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa , South Africa.

Abstract summary 

The prevalence of obesity and metabolic diseases continues to rise globally. The increased consumption of unhealthy energy-rich diets that are high in fat and sugars results in oxidative stress and inflammation leading to hypothalamic dysfunction, which has been linked with these diseases. Conversely, diets rich in polyphenols, which are phytochemicals known for their antioxidant and anti-inflammatory properties, are associated with a reduced risk for developing metabolic diseases.This review provides an overview of the effects of polyphenols against diet-induced hypothalamic dysfunction with respect to neural inflammation and mitochondrial dysfunction. Results show that polyphenols ameliorate oxidative stress and inflammation within the hypothalamus, thereby improving leptin signaling and mitochondrial biogenesis. Furthermore, they protect against neurodegeneration by decreasing the production of reactive oxygen species and enhancing natural antioxidant defense systems.The potential of polyphenols as nutraceuticals against hypothalamic inflammation, mitochondrial dysfunction, and neurodegeneration could hold tremendous value. With hypothalamic inflammation increasing naturally with age, the potential to modulate these processes in order to extend longevity is exciting and warrants exploration. The continued escalation of mental health disorders, which are characterized by heightened neuronal inflammation, necessitates the furthered investigation into polyphenol therapeutic usage in this regard.

Authors & Co-authors:  Samodien Ebrahim E Johnson Rabia R Pheiffer Carmen C Mabasa Lawrence L Erasmus Melisse M Louw Johan J Chellan Nireshni N

Study Outcome 

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Statistics
Citations :  Ashrafian H., Harling L., Darzi A., Athanasiou T. Neurodegenerative disease and obesity: what is the role of weight loss and bariatric interventions? Metabolic Brain Disease. 2013;28:341–353.
Authors :  7
Identifiers
Doi : 10.1016/j.molmet.2019.06.022
SSN : 2212-8778
Study Population
Male,Female
Mesh Terms
Animals
Other Terms
Hypothalamic inflammation;Longevity;Metabolic disease;Neural mitochondrial dysfunction;Nutrition;Polyphenols
Study Design
Cross Sectional Study
Study Approach
Country of Study
Publication Country
Germany