Abstract

In recent years, chronic diseases including obesity, diabetes, cancer, cardiovascular, and neurodegenerative disorders have been the leading causes of incapacity and death globally. Increasing evidence suggests that improvements of lifestyle habits and diet is the most commonly adopted strategy for the prevention of chronic disorders. Moreover, many dietary compounds have revealed health-promoting benefits beyond their nutritional effects. It is worth noting that diet plays an important role in shaping the intestinal microbiota. Coarse cereals constitute important sources of nutrients for the gut microbiota and contribute to a healthy gut microbiome. Furthermore, the gut microbiota converts coarse cereals into functional substances and mediates the interaction between the host and these components. In this study, we summarize the recent findings concerning functional components of cereal grains and their potential chemopreventive activity via modulating the gut microbiota.

Highlights

  • Coarse cereals are cereal grains except for rice and wheat, including oats (Avena sativa), buckwheat (Fagopyrum esculentum), barley (Hordeum vulgare), sorghum (Sorghum vulgare), quinoa (Chenopodium quinoa), and some millet species [1]

  • The results showed that sorghum exhibited tremendous anti-colorectal cancer (CRC) effects by suppressing the growth and metastasis of cancerous colon epithelial cells, as well as protecting against gut microbiota alterations linked to colitis [37]

  • inflammatory bowel disease (IBD), CRC, and intestinal barrier dysfunction could be alleviated by intake of a diet supplemented with coarse cereals or their bioactive components, due to the changes in relative gene expression, reduction of inflammatory cytokines (IL-6, IL-8, IL-10, etc.) and increased production of short-chain fatty acids (SCFAs) demonstrated to be affected by the composition of gut microbiota

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Summary

Introduction

Coarse cereals are cereal grains except for rice and wheat, including oats (Avena sativa), buckwheat (Fagopyrum esculentum), barley (Hordeum vulgare), sorghum (Sorghum vulgare), quinoa (Chenopodium quinoa), and some millet species [1] Due to their rich protein content and balanced amino acid profile, the nutritional value of coarse cereals has attracted wider attention than that of major cereals [2]. Phytochemicals carbohydrates are metabolized by gut digestion, improve gut health microbiota into short-chain fatty acids (SCFAs) and other small functional molecules. These functional components can regulate gut microbiota that contribute to exerting health effects on various diseases

Effects on Gastrointestinal Diseases
Inflammatory Bowel Disease
Colorectal Cancer
Effects on Cardiovascular Diseases
Hyperlipidemia
Hypertension
Nonalcoholic Fatty Liver Disease
Atherosclerosis
Effects on Obesity
Effects on Diabetes
Prebiotic Effect
Metabolic Syndrome
Neurodegenerative Disorders
Malnutrition
Prospects
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