Black raspberry (Rubus occidentalis) attenuates inflammatory markers and vascular endothelial dysfunction in Wistar rats fed a high‐fat diet with fructose solution. Issue 10 (12th September 2021)

• Record Type: Journal Article
• Authors: Park, Sun Young; Jung, Hana; Lin, Zhaoyan; Hwang, Keum Taek; Kwak, Ho‐Kyung
• Is Part Of: Journal of food biochemistry. Volume 45:Issue 10(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-09-12
• Subjects: anti‐inflammation -- black raspberry -- endothelial -- fructose solution -- high‐fat diet; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; Biochemistry -- Periodicals; 664.024
• DOI: 10.1111/jfbc.13917
• Languages: English
• ISSNs: 0145-8884

Abstract

Abstract: A continuous high‐fat/high‐fructose diet induces inflammation and lowers vascular endothelial function in the body. This research examined the effects of black raspberry (BR) powder consumption on the inflammatory response and endothelial dysfunction in rats fed with a high‐fat diet and fructose solution. Wistar rats were randomly divided into two groups as control (AIN‐93G diet + distilled water) and HFF (high‐fat diet + 20% fructose solution) groups, for 16 weeks. At 8 weeks, the HFF was further divided into three subgroups: HFF, HFFBR2.5 (2.5% BR in high‐fat diet), and HFFBR5 (5% BR in high‐fat diet). The BR‐fed groups showed significantly higher high‐density lipoprotein‐cholesterol and lower triglycerides than the HFF group. Rats supplemented with BR showed decreased mRNA and protein expressions of inflammatory cytokines and adhesion molecules in the liver and aorta tissues. Furthermore, the aortic protein expression of endothelial nitroxide synthase was significantly greater in the HFFBR2.5 and HFFBR5 than HFF. Practical applications: Black raspberry (BR: Rubus occidentalis ) is abundant in flavonoids and anthocyanins. BR displays various biological activities and has been used to alleviate inflammatory conditions. In our study, BR supplementation showed promising effects against high‐fat/high‐fructose diet‐induced inflammation and endothelial dysfunction in rats by decreasing markers of inflammation and improving vascular endothelial function. These findings suggest that BR consumption could have beneficial effects on the risk factors of cardiovascular disease. Abstract : Black raspberry (BR: Rubus occidentalis ) consumption with a high‐fat diet and fructose solution reduced the triglyceride, low‐density lipoprotein‐cholesterol, and total cholesterol but increased the high‐density lipoproteincholesterol level in the rats. In BR‐fed rats, inflammatory cytokines and adhesion molecules were significantly decreased, while increased endothelial nitroxide synthase expression and thin aortic intima‒media thickness were observed. BR consumption could have beneficial effects on the risk factors of cardiovascular disease.