Botanical,quality control,phytochemistry,pharmacology and toxicity characteristics of Corydalis bungeana Turcz.:a review

Corydalis bungeana Turcz.(CB)is a medicinal herb with significant medicinal value in traditional Chinese medicine.This paper reviews the progress of research on CB’s botany,quality control,phytochemistry,pharmacology and toxicity.The plant’s information was gathered from scientific databases such as PubMed,GeenMedical,Springer Link(https://link.springer.com),Chinese National Knowledge Infrastructure,Pharmacopoeia and Flora.Currently,137 phytochemicals have been identified and isolated from CB,including alkaloids,flavonoids,amino acids,terpenoids,coumarins and organic acids.In addition,many phytochemicals reported various antiinflammatory,antibacterial,antiviral,antitumor,analgesic,hepatoprotective,immunomodulatory,neuromodulatory,and lipid reduction activities.However,the study of its toxicity is still at the preliminary exploration stage and needs further intensive exploration.Herein,we provide an in-depth investigation of the progress of CB to elucidate the underlying mechanisms of activity of CB extracts and its major components,deliver valuable resources and information for further research and rational drug use,and explore the potential research directions and prospects of CB.

Metabolomics investigation on antiobesity effects of Corydalis bungeana on high-fat high-sugar diet-induced obese rats

Objective:Corydalis bungeana(CB)is a well-used medicinal herb in Mongolian folk medicine and has been traditionally applied as an antiobesity agent.However,the evidence-based pharmacological effects of CB and its specific metabolic alterations in the obese model are not entirely understood.This study aimed to utilize untargeted metabolomic techniques to identify biomarkers and gain mechanistic insight into the serum metabolite alterations associated with weight loss and lipid metabolism in obese rats.Methods:A high-fat high-sugar(HFHS)diet was used to induce obese models in rats.CB extract was orally gavaged at 0.18,0.9 and 1.8 g/kg doses for six weeks,and feed intake,body weight,fat pad weight,and blood indexes were measured.Blood serum metabolites were evaluated by gas chromatography/quadrupole time-of-fight tandem mass spectrometry(GC-TOF/MS).Results:The results showed that compared with the obese group,the administration of CB extract caused significant decreases in body weight(P<0.05),feed intake,Lee’s index,and perirenal,mesenteric,epididymal fat weight.CB extract also reduced blood triglyceride and total cholesterol levels(P<0.05)of obese rats.Metabolomic findings showed that nine differential metabolites,including pyruvic acid,D-glucuronic acid,malic acid,dimethylglycine,oxoglutaric acid,pantothenic acid,sorbitol acid,fumaric acid and glucose 6-phosphate were identified under CB treatment and altered metabolic pathways such as TCA cycle,pantothenate and CoA biosynthesis,and glycolysis/gluconeogenesis.Conclusion:This study demonstrated weight loss and lipid lowering effects of CB on HFHS diet-induced obese rats and identified nine metabolites as potential biomarkers for evaluating the favorable therapeutic mechanism of CB via regulation of lipid and glucose metabolism.