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
Chrysanthemum extract has protective effects on light-damaged retinas, reducing oxidative stress and improving cellular viability.
The experiment incorporated both in-vitro and in-vivo tests. In the lab, ARPE-19 cells were divided into four groups (control, light-damaged, low-dose extract, high-dose extract), treated with varying levels of chrysanthemum extract, and then exposed to light. Cellular viability and reactive oxygen species production were then observed. A similar grouping approach was used with C57BL/6J mice, where chrysanthemum extract concentration was administered before light exposure. The retinas were evaluated for function, morphology, and apoptosis post-exposure.
Light-damage caused a decrease in cellular viability and an increase in reactive oxygen species production. However, treatment with chrysanthemum extract showed improvement in viability and reduction in reactive oxygen species. In mice, light damage caused dysfunction in the retinas, destruction of morphology and increased apoptosis, particularly in the retinal pigment epithelium and photoreceptor layer. Again, chrysanthemum extract treatment improved retinal function, maintained retinal structures, and reduced apoptosis. The extract achieved this by increasing concentration of anti-oxidative enzymes.
Discover Related Insights
The traditional Chinese medicine prescription combination of Chrysanthemi Flos, Cassiae Semen, Lycii Fructus, Angelicae Sinensis Radix and Salviae Miltiorrhizae Radix et Rhizoma presents potential for treating retinal diseases.
2024 Traditional Medicine Research Exploring a novel traditional Chinese medicine prescription containing Chrysanthemi Flos for retinal diseases: an integrated strategy of data mining and network pharmacology Zhang JX, Zhang KL, Chang XW, Gu JF, Wei SB, Zhu BY, et al.
Data Mining Chrysanthemum Retinitis Pigmentosa
Methodology: The researchers employed data mining to discern a new traditional Chinese medicine (TCM) prescription against retinal diseases and explore its medication rule. This was followed by constructing a network of TCMs, core ingredients, core targets, and core pathways using network pharmacology. The binding ability between core active ingredients and core targets was then verified through molecular docking and molecular dynamics simulation techniques.
Discussion: The novel TCM prescription screened in this study bears great potential in retinal diseases treatment through a unique mechanism of action. This mechanism involves TCM prescriptions that possess clearing heat and supplementing activities, associated with liver and lung meridians. The mechanism was found to act by modulating several core targets implicated in multiple core pathways such as the AGE-RAGE signaling pathway in diabetic complications, and the PI3K-Akt signaling pathway, among others. This potentially inhibits the inflammatory response, oxidative stress, and retinal neovascularization and apoptosis of retinal ganglion cells and retinal pigment epithelial cells. This improves retinal structural impairment and can have a significant impact on the treatment of retinal diseases.
Greater intake of blueberries considerably decreases the risk of age-related macular degeneration, while a remarkable dietary intake of anthocyanins inversely correlates with cataract incidents.
2024 The Journal of Nutrition Intake of Blueberries, Anthocyanins, and Risk of Eye Disease in Women Sesso HD, Rautiainen S, Park SJ, Kim E, Lee IM, Glynn RJ, et al.
Cohort Study Age-Related Macular Degeneration Anthocyanins Blueberry
Middle-aged and older women, numbering 36,653 and 35,402 originally without cataract and AMD, provided data for the study via semiquantitative food frequency questionnaires. Insights were derived on the consumption of blueberries by these women, with frequency varied from none to over two servings weekly. Additionally, total anthocyanin consumption was analysed, with major subclasses adjusted for energy and then into quintiles. Self-reported risk factors for eye diseases were adjusted in the multivariable hazard ratios.
On analysis, it was found that a significant portion of participants consumed a minimum of one serving of blueberries weekly. Thus, compared to no blueberry intake, it was observed that those consuming the fruit exhibited a decrease in the total instances of AMD, while visually significant AMD remained unaffected. Furthermore, dietary anthocyanin showed a modest yet significant inverse association with cataract occurrences, but no notable correlation with AMD.
Jin Si Huang Ju tea, a traditional Chinese beverage, contains compounds that potentially reduce lipids, mitigate insulin resistance and reduce liver inflammation in vitro.
2023 European Journal of Medicinal Chemistry Effects and mechanism of action of Chrysanthemum morifolium (Jinsi Huangju) on hyperlipidemia and non-alcoholic fatty liver disease Li X, Li R, Wang X, Zhang X, Xiao Z, Wang H, et al.
Animal Study Cholesterol Chrysanthemum NAFLD
The researchers identified 14 compounds in the Jinsi Huangju tea using different spectroscopic techniques, 11 of which had not been previously identified in this plant. Two of these compounds, apigenin-7-O-6″-malonylglucoside and luteolin-7-O-6″-malonylglucoside, were synthesized for the first time with a yield of 1.2% over 5 steps.
In the findings, the natural compound apigenin-7-O-6″-malonylglucoside was found to inhibit the function of pancreatic lipase, reduce cellular lipid contents, and attenuate insulin resistance when tested in vitro. It was also observed to restore lipid and inflammatory profiles in plasma and the liver, as well as reduce hepatic steatosis in non-alcoholic fatty liver disease (NAFLD) mouse models. Thus, Jinsi Huangju and its active components are strong candidates for the development of drugs or functional foods that could provide a therapeutic strategy for hyperlipidaemia and NAFLD.
Chrysanthemum has several active ingredients that can potentially treat dry eye by inhibiting inflammation-related factors and pathways, thus reducing inflammation of lacrimal gland tissue.
2023 TMR Pharmacology Research A network pharmacology-based investigation of the mechanism of action of chrysanthemum in treating dry eye Cao LY, Long Q, Jiang PF, Peng J, Peng QH
Network Pharmacology Chrysanthemum Dry Eye
The study used network pharmacology methods and various databases to further analyze the mechanism of Chrysanthemum in treating dry eye. First, the TCMSP was used to screen for candidate active ingredient molecules of chrysanthemum showcasing requisite oral bioavailability and drug similarity. The active ingredients of chrysanthemum were then identified, followed by target prediction. Cytoscape was used to construct a compound-target network for chrysanthemum. The Online Mendelian Inheritance in Man and DisGeNET databases were utilized to pinpoint pathogenic genes associated with dry eye, and the STRING database produced an interaction network and bar graph to scrutinize protein interactions. Using Venny, a final drug-active ingredient-key target-disease network was created.
The study found that Chrysanthemum has eighty active ingredients corresponding to targets for treating dry eye. These key functional targets primarily regulate gene expression, oxidative stress, immune response, apoptosis, proliferation, regulation of cellular inflammation-related factors, and angiogenesis. The primary pathways associated with these key targets include interleukin signaling, metabolism, cytokine signaling in the immune system, immune system, and signal transduction, thereby improving the condition of dry eye primarily through the inhibition of inflammation-related factors.
Chrysanthemum extract can be utilised as a natural ingredient to lessen post-meal cholesterol levels and enhance antioxidant status, after eating a high-fat meal.
2023 Molecules Analysis of Chemical Constituents of Chrysanthemum morifolium Extract and Its Effect on Postprandial Lipid Metabolism in Healthy Adults Chen L, Sun J, Pan Z, Lu Y, Wang Z, Yang L, et al.
Clinical Study Antioxidant Cholesterol Chrysanthemum
The researchers analyzed the composition of two types of Imperial Chrysanthemum (IC) extracts, specifically IC-P and IC-E, using an Ultra High-Performance Liquid Chromatography-Mass Spectrometry (UHPLC-MS) method. Next, they assessed these extracts' in vitro antioxidant activities using three different radical scavenging assays: 1,1-diphenyl-2-picrylhydraxyl (DPPH), 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and Hydroxyl Radical(HR). A group of 37 adults followed a randomized program and were divided into two: one consuming a high-fat (HF) meal alone and the other having the same meal but supplemented with IC extract. Blood samples from participants were taken at a fasting state and several more times up to 8 hours after the meal.
The study found 12 compounds, including amino acids, flavonoids, and carboxylic acids, making up over 1% of the IC extracts. Compared to IC-E, IC-P exhibited significantly higher flavonoid content and strong free radical scavenging activity. Chrysanthemum consumption showed significant differences in post-meal glucose levels, triglycerides, total antioxidant capacity (T-AOC), and malondialdehyde (MDA) levels, with the IC-P supplement group showing lower postprandial glucose and improved serum antioxidant status.
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