2nd International Conference on Food Chemistry & Nutrition
July 24-26, 2017 Vancouver, Canada
Minji Woo, Mijeong Kim, Serim Kim, Jeong Sook Noh and Yeong Ok Song
Pusan National University, Republic of Korea
Tongmyong University, Republic of Korea
Posters & Accepted Abstracts: J Exp Food Chem
Abstract :
High cholesterol diet (HCD) is known to cause hepatic steatosis. Apoptosis is a major cell death pathway hepatocyte which occursin a wide variety of liver diseases. Kimchi, a Korean traditional fermented vegetable, demonstrated to have antioxidative, antiatherogenic,and anti-cancer properties. This study investigated whether kimchi methanol extracts (KME) affects lipid metabolismand apoptosis in the liver of HCD-fed mice. Animals fed HCD for 8 weeks with oral administration of KME (200 mg/kg bw/day) ordistilled water as a vehicle (n = 10 for each group). Compared with the control group, the kimchi group decreased the hepatic proteinexpression for fatty acid synthesis (SREBP-1, ACC�±, FAS) and cholesterol synthesis (SREBP-2, HMGCR), whereas increased thatfor fatty acid oxidation (PPAR-�±, CPT1, ACOX1) and cholesterol export (CYP7A1) (all for P<0.05). Additionally, hepatic proteinexpression for proapoptotic factors (Bax, p-JNK, caspase-3, -9) was decreased, while that for anti-apoptotix factors (Bcl2, cIAP) waselevated in the kimchi group (all for P<0.05). Furthermore, histological analysis (oil red O, H&E, TUNEL staining) in the liver tissueshowed that hepatic steatosis, inflammation, and apoptosis in the kimchi group were less severe. In conclusion, HCD-induced liverdamage can be alleviated by kimchi administration via improving lipid metabolism and suppressing apoptosis.
Biography :
Yeong Ok Song has completed her MS from California University and PhD from Pusan National University. She is now the professor of Dept. Food science and nutrition in Pusan National University. She has made reserach achievements, focusing on the lipid lowering and anti-atherogenic effects of functional foods, and kimchi in particular. She has published more than 50 papers for kimchi in reputed journals. Moreover, her excellence in research has been recognized by the Academic Society, by which she was awarded ‘The Greatest Achievement in Research in 2015.
Email: yosong@pusan.ac.kr
