Symptom → Plant Sources
Centaury (Centaurium erythraea) and Indigestion: evidence and sources
Digestive aid for mild dyspeptic complaints such as indigestion and bloating (stimulates gastric and bile secretion) - a comprehensive review also documents gastroprotective, hepatoprotective and anti-inflammatory activity
For educational purposes only, not medical advice. Always consult a qualified practitioner before using medicinal plants, especially alongside prescribed medication, during pregnancy, or for a serious condition.
Ethnopharmacological relevance Centaurium erythraea is an important medicinal plant in many countries, e.g. Morocco, Algeria, Italy, Spain, Portugal, and countries of Balkan Peninsula. It is used in folk medicine to treat various illnesses. It is also used as an antiapoplectic, anticoagulant, anticholagogue, antipneumonic, hematocathartic, and as a hypotensive agent. Aim of the review In this review, previous reports on the taxonomy, botanical description, geographic distribution, ethnomedicinal applications, phytochemistry, pharmacological properties, and toxicity of Centaurium erythraea were critically summarized. Materials and methods Scientific search engines including PubMed, ScienceDirect, SpringerLink, Web of Science, Scopus, Wiley Online, SciFinder, and Google Scholar were consulted to collect data on C. erythraea. The data presented in this work summarized the main reports on C. erythraea phytochemical compounds, ethnomedicinal uses, and pharmacological activities. Results C. erythraea is used in traditional medicine to treat various diseases such as diabetes, fever, rhinitis, stomach ailments, urinary tract infections, dyspeptic complaints, loss of appetite, and hemorrhoids, and as diuretic. The essential oils and extracts of C. erythraea exhibited numerous biological properties such as antibacterial, antioxidant, antifungal, antileishmanial, anticancer, antidiabetic, anti-inflammatory, insecticidal, diuretic, gastroprotective, hepatoprotective, dermatoprotective, neuroprotective, and inhibitory agent for larval development. Phytochemical characterization of C. erythraea revealed the presence of several classes of secondary metabolites such as xanthonoids, terpenoids, flavonoids, phenolic acids, and fatty acids. Conclusions Ethnomedicinal studies demonstrated the use of C. erythraea for the treatment of various disorders. Pharmacological reports showed that C. erythraea especially its aerial parts and roots exhibited potent, and beneficial activities. These findings confirmed the link between the traditional medicinal use and the results of the scientific biological experiments. Considering these results, further investigation using diverse in vivo pharmacological assays are strongly recommended to validate the results of its traditional use. Toxicological tests and pharmacokinetic studies are also required to validate the safety and efficacy of C. erythraea and its bioactive contents.
3 sources supporting Centaury for Indigestion. Includes scientific publications, books, monographs and traditional-use references.
Mechanistic basis
This use is associated with the plant's bitter digestive tonic / stomachic, digestive aid, gastroprotective actions. Further evidence for that pharmacology:
As part of our on-going search for bioactive compounds from Scottish plants, two secoiridoid glycosides, swertiamarin and sweroside, have been isolated from the aerial parts of Centaurium erythraea Rafn (Family: Gentianaceae) by reversed-phase preparative HPLC coupled with a photo-diode-array detector. The structures of these compounds were elucidated unambiguously by UV, FABMS and extensive 1D and 2D NMR spectroscopic analyses and also by comparing experimental data with literature data. Antibacterial, free radical scavenging activities and general toxicity of these glycosides have been assessed. Both compounds inhibited the growth of Bacillus cereus, Bacillus subtilis, Citrobacter freundii and Escherichia coli. While swertiamarin was also active against Proteus mirabilis and Serratia marcescens, sweroside inhibited the growth of Staphylococcus epidermidis. Swertiamarin and sweroside exhibited significant general toxicity in brine shrimp lethality bioassay and the LD50 values were 8.0 microg/ml and 34 microg/ml, respectively, whereas that of the positive control podophyllotoxin, a well known cytotoxic lignan, was 2.79 microg/ml. Chemotaxonomic implications of these compounds in the family Gentianaceae have also been discussed briefly.
Centaurium erythraea is recommended for the treatment of gastrointestinal disorders and to reduce hypercholesterolemia in ethno-medicinal practice. To perform a top-down study that could give some insight into the molecular basis of these bioactivities, decoctions from C. erythraea leaves were prepared and the compounds were identified by liquid chromatography-high resolution tandem mass spectrometry (LC-MS/MS). Secoiridoids glycosides, like gentiopicroside and sweroside, and several xanthones, such as di-hydroxy-dimethoxyxanthone, were identified. Following some of the bioactivities previously ascribed to C. erythraea , we have studied its antioxidant capacity and the ability to inhibit acetylcholinesterase (AChE) and 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR). Significant antioxidant activities were observed, following three assays: free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) reduction; lipoperoxidation; and NO radical scavenging capacity. The AChE and HMGR inhibitory activities for the decoction were also measured (56% at 500 μg/mL and 48% at 10 μg/mL, respectively). Molecular docking studies indicated that xanthones are better AChE inhibitors than gentiopicroside, while this compound exhibits a better shape complementarity with the HMGR active site than xanthones. To the extent of our knowledge, this is the first report on AChE and HMGR activities by C. erythraea decoctions, in a top-down analysis, complemented with in silico molecular docking, which aims to understand, at the molecular level, some of the biological effects ascribed to infusions from this plant.
The aim of this study was to determine the antiulcer and antioxidant activities of Centaurium erythraea L (small centaury) in aspirin (ASA) induced acute gastric ulcer model. The gastroprotective effect of the 50% aqueous-ethanolic small centaury (SC) extract was investigated in rats at a dose of ASA 200 mg/kg body weight. Twenty-one Sprague-Dawley albino rats were divided into three groups of seven rats each as follows: (1) control group; (2) acute ASA-treated group and (3) ASA plus SC group. At the end of the 4-h drug administration, ulcer index, oxidant and antioxidant levels were measured and compared between the groups. The percentage of lesion area to total gastric surface area (ulcer index) was significantly reduced (77%) in ASA plus SC group as compared with acute ASA-treated group. The oral administration of ASA decreased catalase (CAT), reduced glutathione (GSH), and increased lipid peroxidation (LPO) levels. Although myeloperoxidase (MPO) activity was increased by ASA, it was found to be lower in the ASA plus SC group. GSH and Vitamin A levels were determined higher in the ASA plus SC group compared with ASA group. These results suggest that SC extract protects against ASA-induced damage due to its antioxidizing activity.