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01-04-2019 | Original Contribution

Leopoldia comosa prevents metabolic disorders in rats with high-fat diet-induced obesity

Authors: T. Casacchia, F. Scavello, C. Rocca, M. C. Granieri, G. Beretta, D. Amelio, F. Gelmini, A. Spena, R. Mazza, C. C. Toma, Tommaso Angelone, Giancarlo Statti, T. Pasqua

Published in: European Journal of Nutrition | Issue 3/2019

Abstract

Purpose

Obesity is the main feature of a complex illness known as metabolic syndrome. Anti-obesogenic therapies are often associated with side effects and represent a high cost in conventional pharmacological approaches. New strategies based on natural remedies are under continuous investigation. Leopoldia comosa (L.) Parl. (L. comosa) is a spontaneous plant with diuretic, anti-inflammatory and antioxidant properties. Recently, a hypoglycemic activity mediated by inhibition of carbohydrate digestion has been identified. The aim of this study was to evaluate the effects of a diet supplemented with L. comosa extracts on a rat model of diet-induced obesity.

Methods

Leopoldia comosa bulb extracts were obtained using a dynamic extractor. Phytochemical properties and in vitro determination of the antioxidant activity and of the inhibitory effects on lipase and pancreatic amylase were performed. Rats were fed (12 weeks) a standard diet, or a high-fat diet (HFD), or an HFD plus L. comosa (20 or 60 mg/die) extracts. The metabolic and anthropometric parameters were recorded.

Results

Results indicated that L. comosa inhibited lipase and pancreatic amylase activities. In vivo data showed that the supplementation with both doses of L. comosa extracts counteracted the HFD-dependent effects. It reduced body weight, abdominal obesity and dyslipidemia, and improved glucose tolerance with a reduction of lipidic tissue hypertrophy and liver steatosis, as compared to HFD-fed rat. In liver, L. comosa reduced protein expression levels of PEPCK and G6Pase.

Conclusion

We suggest that L. comosa extracts prevent obesity-dependent metabolic disorders. This paves the way for their therapeutic application as a natural anti-obesity drug.

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Title: Leopoldia comosa prevents metabolic disorders in rats with high-fat diet-induced obesity
Authors: T. Casacchia
F. Scavello
C. Rocca
M. C. Granieri
G. Beretta
D. Amelio
F. Gelmini
A. Spena
R. Mazza
C. C. Toma
Tommaso Angelone
Giancarlo Statti
T. Pasqua
Publication date: 01-04-2019
Publisher: Springer Berlin Heidelberg
Published in: European Journal of Nutrition / Issue 3/2019
Print ISSN: 1436-6207
Electronic ISSN: 1436-6215
DOI: https://doi.org/10.1007/s00394-018-1609-1

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