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Effects of pigment extract from black glutinous corncob in a high-fat-fed mouse model of hyperlipidemia

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Abstract

This study was designed to evaluate the effect of pigments extracted from black glutinous corncob (BGC) on hyperlipidemia in high-fat-fed mice. Our previous studies showed that pigment from BGC (PBGC) is an anthocyanin and can markedly reduce oxidative stress and scavenge free radicals. PBGC was isolated and prepared by extraction in 1% hydrochloric acid ethyl alcohol solution. Mice were divided into five groups of ten mice each: group I were healthy controls, group II were fed a cholesterol-rich diet only, while groups III to V were fed a cholesterol-rich diet and were fed PBGC by gavage at 200, 500, and 800 mg/kg body weight, respectively, for 4 weeks. The results indicated that PBGC significantly lowered the plasma total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) and markedly increased the serum high-density lipoprotein cholesterol (HDL-C), compared with the hyperlipidemia control group (P < 0.01). Moreover, administration of PBGC significantly decreased the atherogenic index (AI). The present results suggest that PBGC has great potential for preventing hyperlipidemia and cerebrovascular diseases.

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Abbreviations

PBGC:

Pigments from black glutinous corncob

TG:

Triglyceride

TC:

Total cholesterol

LDL-C:

Low-density lipoprotein cholesterol

HDL-C:

High-density lipoprotein cholesterol

AI:

Atherogenic index

FFA:

Free fatty acids

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Acknowledgments

We thank Mr. Si-Bing Cai (Agriculture & Science Institute of Sui Xi, China) for providing the black glutinous corn samples. This work was supported by grants from the Talent Introduce Project of Institutions of Higher Learning in Guangdong Province (Project 201192) and the Talent Introduce Project of Maoming University (2009).

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Authors and Affiliations

  1. College of Chemistry and Life Science, Maoming University, 525000, Maoming, China

    Zhong Zhang

  2. College of Engineering, Anhui Science and Technology University, 233100, Fengyang, China

    Lei Yang & Hua Ye

  3. Anhui Agricultural University, 230036, Hefei, China

    Xian-Feng Du, Zhi-Mou Gao & Zhen-Lin Zhang

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  1. Zhong Zhang
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  2. Lei Yang
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  3. Hua Ye
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Correspondence to Zhong Zhang.

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Zhang, Z., Yang, L., Ye, H. et al. Effects of pigment extract from black glutinous corncob in a high-fat-fed mouse model of hyperlipidemia. Eur Food Res Technol 230, 943–946 (2010). https://doi.org/10.1007/s00217-010-1242-6

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  • DOI: https://doi.org/10.1007/s00217-010-1242-6

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