Abstract

Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors that exert important functions in mediating the pleiotropic effects of diverse exogenous factors such as physical exercise and food components. Particularly, PPARs act as transcription factors that control the expression of genes implicated in lipid and glucose metabolism, and cellular proliferation and differentiation. In this review, we aim to summarize the recent advancements reported on the effects of lifestyle and food habits on PPAR transcriptional activity in chronic disease.

Highlights

  • Modern lifestyle characterized by unbalanced composition of the diet and poor physical activity, accompanied by the presence of environmental pollutants, has resulted in dramatic increases in the rates of metabolic disease and age-related diseases

  • This review provides an update of lifestyle and food habits on low grade inflammation in two main chronic diseases, polycystic ovary syndrome (PCOS) and non-alcoholic fatty liver disease (NAFLD), with particular attention on the mechanism that involve the activation of the major metabolic and inflammatory players, the Peroxisome proliferator-activated receptors (PPARs)

  • It is becoming noticeable that the primary cause of most Western chronic diseases, with systemic low-grade inflammation as the common denominator, is not following a correct lifestyle and improper food habits

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Summary

Introduction

Modern lifestyle characterized by unbalanced composition of the diet and poor physical activity, accompanied by the presence of environmental pollutants, has resulted in dramatic increases in the rates of metabolic disease and age-related diseases These chronic diseases, such as diabetes, cardiovascular disease (CVD), autoimmune diseases, cancers (breast, colorectal, pancreas), and neurodegenerative diseases are all characterized by a chronic sterile systemic low-grade inflammation [1,2,3]. Different environmental factors of Western lifestyle play a key role in inducing chronic sterile systemic low-grade inflammation and, eventually, the correlated chronic disease These factors may be divided in the unbalanced composition of the diet [6,7,8] and non-food related factors [9]. Dihomo-γ-linolenic acid, Arachidonic acid, Methyl palmitate, 2-bromopalmitic acid, prostacyclin I2, 4-HNE

PPARs and Metabolism
During the fasting state
During normal nutrition
Glucose Metabolism
Cholesterol Metabolism
PPARs in Heart:
PPARs in Pancreas
PPARs in Skeletal Muscles
PPARs in the Intestine
PPARs in Liver
PPARs in Adipose Tissue
Systemic Low-Grade Inflammation
Adipose Tissue the Core of Metaflammation
Insulin Resistance and Inflammation
The Physiological Roles of Insulin
Insulin in Glucose Metabolism
Insulin in Glycogen Metabolism
Insulin in Lipid Metabolism
Insulin in Protein Metabolism
Insulin in Inflammation
Polycystic Ovary Syndrome
Findings
Conclusions
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