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标题：Glycyrrhizic Acid Can Attenuate Metabolic Deviations Caused by a High-Sucrose Diet without Causing Water Retention in Male Sprague-Dawley Rats
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作者：Hamish Alexander Fernando ; Chanchal Chandramouli
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2014
卷号：6
期号：11
页码：4856-4871
DOI：10.3390/nu6114856
语种：English
出版社：MDPI Publishing
摘要：Glycyrrhizic acid (GA) ameliorates many components of the metabolic syndrome, but its potential therapeutic use is marred by edema caused by inhibition of renal 11β-hydroxysteroid dehydrogenase 2 (11β-HSD2). We assessed whether 100 mg/kg per day GA administered orally could promote metabolic benefits without causing edema in rats fed on a high-sucrose diet. Groups of eight male rats were fed on one of three diets for 28 days: normal diet, a high-sucrose diet, or a high-sucrose diet supplemented with GA. Rats were then culled and renal 11β-HSD2 activity, as well as serum sodium, potassium, angiotensin II and leptin levels were determined. Histological analyses were performed to assess changes in adipocyte size in visceral and subcutaneous depots, as well as hepatic and renal tissue morphology. This dosing paradigm of GA attenuated the increases in serum leptin levels and visceral, but not subcutaneous adipocyte size caused by the high-sucrose diet. Although GA decreased renal 11β-HSD2 activity, it did not affect serum electrolyte or angiotensin II levels, indicating no onset of edema. Furthermore, there were no apparent morphological changes in the liver or kidney, indicating no toxicity. In conclusion, it is possible to reap metabolic benefits of GA without edema using the current dosage and treatment time.
关键词：glycyrrhizic acid; metabolic syndrome; high-sucrose diet; 11β-HSD2; side effects; edema; angiotensin II; electrolytes glycyrrhizic acid ; metabolic syndrome ; high-sucrose diet ; 11β-HSD2 ; side effects ; edema ; angiotensin II ; electrolytes