Yacon (Smallanthus sonchifolius) Leaf Extract Attenuates Hyperglycemia and Skeletal Muscle Oxidative Stress and Inflammation in Diabetic Rats

Klinsmann Carolo Dos Santos, Bianca Guerra Bueno, Luana Ferreira Pereira, Fabiane Valentini Francisqueti, Mariana Gobbo Braz, Lahis Fernandes Bincoleto, Lilian Xavier Da Silva, Ana Lúcia A. Ferreira, Ana Cláudia De Melo Stevanato Nakamune, C. Y.Oliver Chen, Jeffrey B. Blumberg, Camila Renata Corrêa

Research output: Contribution to journalArticlepeer-review

Abstract

The effects of hydroethanolic extract of Yacon leaves (HEYL) on antioxidant, glycemic, and inflammatory biomarkers were tested in diabetic rats. Outcome parameters included glucose, insulin, interleukin-6 (IL-6), and hydrophilic antioxidant capacity (HAC) in serum and IL-6, HAC, malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) in soleus. The rats (10/group) were divided as follows: C, controls; C + Y, HEYL treated; DM, diabetic controls; and DM + Y, diabetic rats treated with HEYL. Diabetes mellitus was induced by administration of streptozotocin. C + Y and DM + Y groups received 100 mg/kg HEYL daily via gavage for 30 d. Hyperglycemia was improved in the DM + Y versus DM group. Insulin was reduced in DM versus C group. DM rats had higher IL-6 and MDA and lower HAC in the soleus muscle. HEYL treatment decreased IL-6 and MDA and increased HAC in DM rats. DM + Y rats had the highest CAT activity versus the other groups; GPx was higher in C + Y and DM + Y versus their respective controls. The apparent benefit of HEYL may be mediated via improving glucoregulation and ameliorating oxidative stress and inflammation, particularly in diabetic rats.

Original languageEnglish
Article number6418048
JournalEvidence-based Complementary and Alternative Medicine
Volume2017
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Subject classification (UKÄ)

  • Endocrinology and Diabetes

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