| خلاصه مقاله | A Review of the Role of Gut Microbiota in Obesity
Abstract
Introduction: This review article aims to discuss current findings on the role of gut microbiota in the pathogenesis of obesity.
Methods: We explore the mechanisms by which gut microorganisms affect host metabolism. Furthermore, we discuss the impact of dietary patterns on microbial diversity and function and the potential of probiotics and prebiotics as therapeutic strategies for obesity management.
Results: Numerous studies have identified significant differences in the gut microbiota profiles of obese individuals compared to lean individuals, with a higher prevalence of Firmicutes and a lower prevalence of Bacteroidetes. Specific gut bacteria are capable of breaking down complex carbohydrates into short-chain fatty acids, which can be absorbed and used for energy, contributing to increased fat storage. Gut microbiota can influence the secretion of hormones related to appetite regulation, such as increased levels of ghrelin and decreased levels of leptin, which can promote weight gain. Dysbiosis has been linked to systemic inflammation and metabolic disorders commonly associated with obesity, like insulin resistance. Diet significantly affects gut microbiota composition, with a high-fiber diet promoting microbial diversity and the growth of beneficial bacteria, while a high-fat, high-sugar diet tends to reduce diversity and promote obesity-related microbial profiles. Studies suggest that probiotic and prebiotic supplementation can lead to weight loss and improvement in metabolic markers, highlighting potential therapeutic strategies targeting gut health for obesity management.
Conclusion: These results emphasize the critical role of gut microbiota in the development of obesity and underline the potential for microbiota-based interventions in obesity treatment and prevention strategies. |