201
|
Abstract
The prevalence of obesity and overweight has plateaued in developed countries, although at high levels, but in most parts of the world, it continues to increase. Current recommendations for preventing and treating obesity are based mainly on the notion that overeating results from hedonic eating as a result of unlimited access to palatable foods, particularly those high in sugar and fat, and that hedonic centers are able to "override" the body's homeostatic mechanisms. This article proposes that the homeostatic mechanisms affecting appetite and satiety are more important in chronic overeating, and that sufficient evidence exists for adopting a new paradigm for controlling individual and global obesity based on controlling energy homeostasis via the enteroendocrine and gut microbiota systems. Many obese children and adolescents have chronic hunger, supporting the notion that they have a homeostatic rather than hedonic abnormality. The effectiveness of weight loss drugs and bariatric surgery suggests that the brain centers controlling energy homeostasis are able to override centers controlling hedonic drives. Energy homeostasis can also be influenced by nutrition, in particular, by avoiding sweetened drinks and consuming whole grains, vegetables, fruits and other foods that are high in dietary fiber, and thereby influence appetite and satiety. New recommendations are outlined for preventing and treating individual and global obesity based on a paradigm that targets appetite and satiety.
Collapse
|
202
|
Ahmadi S, Mainali R, Nagpal R, Sheikh-Zeinoddin M, Soleimanian-Zad S, Wang S, Deep G, Kumar Mishra S, Yadav H. Dietary Polysaccharides in the Amelioration of Gut Microbiome Dysbiosis and Metabolic Diseases. OBESITY & CONTROL THERAPIES : OPEN ACCESS 2017; 4. [PMID: 30474051 DOI: 10.15226/2374-8354/4/2/00140] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The prevalence of metabolic diseases including obesity, diabetes, cardiovascular diseases, hypertension and cancer has evolved into a global epidemic over the last century. The rate of these disorders is continuously rising due to the lack of effective preventative and therapeutic strategies. This warrants for the development of novel strategies that could help in the prevention, treatment and/ or better management of such disorders. Although the complex pathophysiology of these metabolic diseases is one of the major hurdles in the development of preventive and/or therapeutic strategies, there are some factors that are or can speculated to be more effective to target than others. Recently, gut microbiome has emerged as one of the major contributing factors in metabolic diseases, and developing positive modulators of gut microbiota is being considered to be of significant interest. Natural non-digestible polysaccharides from plants and food sources are considered potent modulators of gut microbiome that can feed certain beneficial microbes in the gut. This has led to an increased interest in the isolation of novel bioactive polysaccharides from different plants and food sources and their application as functional components to modulate the gut microbiome composition to improve host's health including metabolism. Therefore, polysaccharides, as prebiotics components, are being speculated to confer positive effects in managing metabolic diseases like obesity and diabetes. In this review article, we summarize some of the most common polysaccharides from plants and food that impact metabolic health and discuss why and how these could be helpful in preventing or ameliorating metabolic diseases such as obesity, type 2 diabetes, hypertension and dyslipidemia.
Collapse
Affiliation(s)
- Shokouh Ahmadi
- Center for Diabetes, Obesity and Metabolism, USA.,Department of Internal Medicine- Molecular Medicine and Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Rabina Mainali
- Center for Diabetes, Obesity and Metabolism, USA.,Department of Internal Medicine- Molecular Medicine and Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Ravinder Nagpal
- Center for Diabetes, Obesity and Metabolism, USA.,Department of Internal Medicine- Molecular Medicine and Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Mahmoud Sheikh-Zeinoddin
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Sabihe Soleimanian-Zad
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran.,Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, Iran
| | - Shaohua Wang
- Center for Diabetes, Obesity and Metabolism, USA.,Department of Internal Medicine- Molecular Medicine and Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Gagan Deep
- Deparment of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Santosh Kumar Mishra
- Molecular Biomedical Sciences, School of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Hariom Yadav
- Center for Diabetes, Obesity and Metabolism, USA.,Department of Internal Medicine- Molecular Medicine and Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| |
Collapse
|
203
|
Effect of dietary fiber (inulin) addition on phenolics and in vitro bioaccessibility of tomato sauce. Food Res Int 2017; 106:129-135. [PMID: 29579910 DOI: 10.1016/j.foodres.2017.12.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 12/14/2017] [Accepted: 12/16/2017] [Indexed: 01/17/2023]
Abstract
The effect of the addition of inulin (5 and 10%) on the phenolic content and in vitro gastrointestinal digestion of tomato sauces has been investigated. Results have shown that the addition of inulin to tomato sauce significantly decreased the total phenolic content (57-68%), total flavonoid content (48-60%), and total antioxidant capacity (49-61%). Similarly, all assays of the sauce containing both 5% and 10% inulin, showed a slight decrease during in vitro gastrointestinal digestion of tomato sauces. Higher levels of inulin added to tomato sauce resulted in the greatest decrease in phenolic content, probably because of the interaction between inulin and phenolic compounds. To address the effects of inulin on the global metabolite profile of tomato sauce, an untargeted metabolomics approach was followed. Changes related to the presence of inulin suggest that inulin quenches a subset of unidentified compounds which are present in sauce but not in fruit, suggesting that inulin can contribute to the conservation of fruit properties in tomato sauce.
Collapse
|
204
|
Kong L, Zhao XH. Yields of three acids during simulated fermentation of inulin and xylo-oligosaccharides enhanced by six exogenous strains. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-016-9439-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|