This article contains findings obtained from research on animals:
- The results from animal research studies should not be directly applied to humans and the results may not generalise to the human population.
- There may be significant differences between species in terms of physiology, physiology, and pharmacology, as well as differences in the way diseases and treatments are modelled in animals.
- Any conclusions drawn from animal research should be considered with caution and in the context of other types of research studies such as observational studies, clinical trials, and reviews of the literature.
Insights & Discussion
Pu-erh tea and its ingredient theabrownin improve liver, jejunum, and adipose tissue functions in metabolic syndrome mice, modulating circadian rhythm, glycerophospholipid, and linoleic acid metabolism.
In this study, varied technological applications such as metagenomics, transcriptomics, and metabolomics were utilized to explore the anti-metabolic syndrome mechanism of Pu-erh tea and theabrownin in mice with metabolic syndrome. These scientific technologies allowed the researchers to understand and explore improvements in the physiological functions of liver, jejunum, and adipose tissues in the metabolic syndrome mice as a result of Pu-erh tea and theabrownin interventions. The investigation also focused on changes to the hepatic transcriptome, revealing that both of these interventions had the capacity to regulate the circadian rhythm pathway.
The results showcased that both interventions succeeded in the modulation of glycerophospholipid and linoleic acid metabolism, this was established through a comprehensive analysis of serum and brain metabolome. Further analysis of faecal metagenome demonstrated an increase in the relative abundance of certain bacterium and a decrease in others due to both interventions. However, in comparison to Pu-erh tea, theabrownin exhibited a more pronounced influence as regards upregulating hepatic antioxidants and downregulating hepatic inflammatory factors, although there was only a slight reduction in obesity-linked short-chain fatty acids in faeces of the metabolic syndrome mice. Overall, the experiment provided essential insights into the various ways these two elements function and provide treatment for metabolic syndrome.
Discover Related Insights
Pu-erh tea may prevent circadian rhythm disorders by promoting tryptophan metabolism and signaling interactions in the gut-liver-brain axis.
2022 Journal of Agricultural and Food Chemistry Pu-erh Tea Restored Circadian Rhythm Disruption by Regulating Tryptophan Metabolism Hu S, Luo L, Bian X, Liu RH, Zhao S, Chen Y, et al.
Experimental Study Pu-Erh Tea
Healthy mice were administered water or 0.25% Pu-erh tea over a period of seven weeks, and then subjected to a disruption of their light/dark cycle for forty days. The assessment of effects was based on changes in neurotransmitter secretion and gene oscillations, intestinal inflammation, and the balance of intestinal microbes and metabolites.
Results indicated that Pu-erh tea had beneficial impacts in regulating neurotransmitter secretion and clock gene oscillations, especially indole and 5-hydroxytryptamine pathways, a key process involving the gut-liver-brain axis. Moreover, the tea's metabolites improved release of brain hormones, thus enhancing hepatic glycolipid metabolism and lowering intestinal oxidative stress. Further observed beneficial effects included promotion of liver lipid metabolism and reduction of intestinal inflammation, via the enterohepatic circulation.
A variety of Chinese herbal medicines have been reported to effectively prevent or treat nonalcoholic fatty liver disease by regulation of the gut microbiota and the gut-liver axis.
2021 Chinese Medicine Herbal therapy for ameliorating nonalcoholic fatty liver disease via rebuilding the intestinal microecology Yang XF, Lu M, You L, Gen H, Yuan L, Tian T, et al.
Systematic Review Pu-Erh Tea
The key roles of CHMs in the regulation of gut microbiota and the gut-liver axis along with their mechanisms (such as modulating intestinal permeability, reducing the inflammatory response, protecting liver cells, improving lipid metabolism, and modulating nuclear receptors), were well summarized. All the knowledge and information presented here will be very helpful for researchers to better understand the applications and mechanisms of CHMs for treatment of NAFLD.
Pu-erh tea, with its complex components, interacts greatly with gut microbiomes and holds significant potential for healthcare applications.
2021 Food Chemistry Effects of bioactive components of Pu-erh tea on gut microbiomes and health: A review Liu JY, He D, Xing YF, Zeng W, Ren K, Zhang C, et al.
Review Article Gut Microbiota Pu-Erh Tea
Pu-erh tea undergoes a post-fermentation process involving various microorganisms, leading to highly complex components. This tea has its potential benefit due to its rich interactions with the gut microbiomes; the structure and the homeostasis of which are deeply connected to human wellness and progress of various diseases. This study provides a systemic review of the current findings pertaining to the bioactive components of Pu-erh tea and their interactions with gut microbiomes.
For the discussion of results, the beneficial effects of Pu-erh tea on gut microbiomes may establish its role in healthcare. These benefits are due to the tea's bioactive components' impacts on the structure of the gut microbiomes, and subsequent health improvements. Additionally, the establishment of "components-function-indicators" clues can propel the standardisation of the tea's fermentation process and development of functional tea-related products.
Ganpu tea, derived from Pu-erh tea and the pericarp of Chachi, enhances antioxidant capacities and modulates gut microbiota beneficially more than Pu-erh tea alone.
2020 Nutrients Chemical Profile, Antioxidative, and Gut Microbiota Modulatory Properties of Ganpu Tea: A Derivative of Pu-erh Tea Zheng Y, Zeng X, Chen T, Peng W, Su W
Network Pharmacology Gut Microbiota Pu-Erh Tea
A thorough chemical analysis was conducted on hot-water extracts of Ganpu tea using ultra-high performance liquid chromatography and quadrupole-time-of-flight tandem mass spectrometry, which identified a total of 92 constituents. Considering the antioxidant properties of Ganpu tea, an experiment was designed and carried out where rats were fed with Ganpu tea over a long period. The same experiment was done using Pu-erh tea and the pericarp of Chachi separately, allowing for comparisons of antioxidant capacities between them and Ganpu tea.
The results showed that Ganpu tea had a substantial impact on improving the activities of superoxide dismutase and glutathione peroxidase, both essential antioxidants, more than Pu-erh tea. This indicated a superior antioxidant capacity of Ganpu tea. Further, it significantly increased the abundance of specific gut bacteria, offering a suggestion of the potential benefits of Ganpu tea in human gut microbiota modulation. The results underscore the health benefits of Ganpu tea in enhancing antioxidant activities and promoting beneficial gut microbiota.
Pu-erh tea was found to lower triglyceride and total cholesterol levels more significantly than green, oolong, or black teas.
2019 Nature Communications Theabrownin from Pu-erh tea attenuates hypercholesterolemia via modulation of gut microbiota and bile acid metabolism Huang, F., Zheng, X., Ma, X. et al.
Experimental Study Cholesterol Digestive Health Theabrownin
Comparative studies using rodents treated with Pu-erh tea, green tea, and black tea provided supporting evidence that fully fermented Pu-erh tea is more effective in causing hypolipidemic and hypocholesterolemic effects compared to other partially fermented and non-fermented teas.
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