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Anti-diabetic properties of different fractions of Korean red ginseng

Authors
 Soo Jeong Park  ;  Jisun Nam  ;  Chul Woo Ahn  ;  YuSik Kim 
Citation
 JOURNAL OF ETHNOPHARMACOLOGY, Vol.236 : 220-230, 2019-05 
Journal Title
JOURNAL OF ETHNOPHARMACOLOGY
ISSN
 0378-8741 
Issue Date
2019-05
MeSH
Animals ; Blood Glucose / drug effects ; Diabetes Mellitus, Type 2 / blood ; Diabetes Mellitus, Type 2 / drug therapy* ; Disease Models, Animal ; Drug Evaluation, Preclinical ; Ginsenosides / isolation & purification ; Ginsenosides / pharmacology ; Humans ; Hypoglycemic Agents / isolation & purification ; Hypoglycemic Agents / pharmacology* ; Hypoglycemic Agents / therapeutic use ; Male ; Medicine, Chinese Traditional / methods ; Mice ; Mice, Inbred Strains ; Panax / chemistry* ; Plant Extracts / chemistry ; Plant Extracts / isolation & purification ; Plant Extracts / pharmacology* ; Plant Extracts / therapeutic use ; Treatment Outcome
Keywords
Korean red ginseng ; Ginsenosides ; Polysaccharides ; Type 2 diabetes mellitus
Abstract
Ethnopharmacological relevance: Korean red ginseng (KRG) has been traditionally used to treat diabetes. Ginsenosides are considered as the major bioactive components mediating anti-diabetic effects of KRG. However, considering that ginsenosides account for only about 3-4% of ginsengs, other fractions of KRG may also carry potential anti-diabetic effects. There is no study reporting the differentiated effects of ginsenosides (Spn) and non-saponin fractions (NSpn) of KRG on glycemic control. Aim of the study: We investigated the effects of KRG, Spn, and NSpn on the indications of glycemic control and sought to elucidate physiological factors contributing their effects. Materials and methods: Human T2DM mimicking Nagoya-Shibata-Yasuda (NSY/hos) mice were given KRG, Spn, or NSpn admixed in rodent diet at 200 mg/kg/day for 24 weeks. Glycemic and obesity indications, blood lipid profile, systematic and local oxidative stress markers in metabolically important organs, and systematic inflammatory markers were assessed. Molecular assessments associated with glycemic control in liver and skeletal muscle were further performed. Results: KRG attenuated deterioration in glucose homeostasis as evidenced by significantly lower fasting blood glucose from 22nd week and AUC during GTT at the end of the experiment compare to control. Spn enhanced insulin secretion in response to glucose stimulation and reduced protein level of glycogen phosphorylase in liver. On the other hand, NSpn ameliorated oxidative stress and inflammation. Some beneficial effects of Spn and NSpn were reflected in KRG treated mice. KRG also attenuated the accumulation of malondialdehyde in skeletal muscle and, accordingly, enhanced insulin responsiveness compare to control. Conclusion: Anti-diabetic properties of KRG are not solely determined by the contents of ginsenosides but the harmonic functions of its different fractions.
Full Text
https://www.sciencedirect.com/science/article/pii/S0378874118342028
DOI
10.1016/j.jep.2019.01.044
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Kim, Yu-Sik(김유식)
Nam, Ji Sun(남지선) ORCID logo https://orcid.org/0000-0001-8655-5258
Ahn, Chul Woo(안철우) ORCID logo https://orcid.org/0000-0003-3733-7486
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/189170
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