首页> 外文期刊>The Journal of Nutritional Biochemistry >Dietary supplementation of Huangshan Maofeng green tea preventing hypertension of older C57BL/6 mice induced by desoxycorticosterone acetate and salt
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Dietary supplementation of Huangshan Maofeng green tea preventing hypertension of older C57BL/6 mice induced by desoxycorticosterone acetate and salt

机译:黄山茂峰绿茶膳食补充防止甲氧基酮醋酸盐酮诱导的老年C57BL / 6小鼠的高血压

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摘要

Senile hypertension affects the life quality of aged population. Dietary intervention plays a pivotal role in the prevention of hypertension. There are few reports concerning the effects and mechanisms of green tea supplementation preventing age related hypertension. The current study investigated the effect and mechanism of dietary supplement of Huangshan Maofeng green tea (HSMF) on prevention of hypertension induced by deoxycorticosterone acetate (DOCA) and salt in old C57BL/6 mice. Our results showed that HSMF dose-dependently prevented the increase of systolic blood pressure and diastolic blood pressure induced by DOCA plus salt (DS) at 51-week-old mice. And HSMF significantly reduced the agonists' stimulated contraction of mesenteric arteries isolated from the old mice. The expression of vasoconstrictor genes and inflammatory cytokines in aorta were suppressed observably by HSMF supplementation compared with DS group. The protein expression of PKC alpha in the aorta was dose-dependently decreased by HSMF compared to DS group. The phosphorylation level of MYPT1, CPI-17and MLC 20 was also restrained by HSMF in the aorta. Furthermore, HSMF protected kidney by maintaining integrity of glomeruli and tubules and remarkably decreased the NGAL level in plasma. HSMF also suppressed the kidney inflammation by decreasing inflammatory cytokines expression and the macrophage infiltration. Our results proved that dietary supplement of HSMF remarkably improved the vascular functions and protected kidney injury, and thus prevented hypertension induced by DS in older C57BL/6 mice. Our data indicated that the dietary supplement of HSMF may potentially be used as a food additive for preventing hypertension for aged people. (C) 2020 The Authors. Published by Elsevier Inc.
机译:老年高血压影响老年人的生活质量。饮食干预在预防高血压方面起着关键作用。关于补充绿茶预防年龄相关性高血压的效果和机制,鲜有报道。本研究旨在探讨黄山毛峰绿茶(HSMF)膳食补充剂对老年C57BL/6小鼠由去氧皮质酮醋酸盐(DOCA)和盐诱导的高血压的预防作用及其机制。我们的结果表明,HSMF剂量依赖性地阻止了DOCA加盐(DS)诱导的51周龄小鼠收缩压和舒张压的升高。HSMF显著降低了激动剂刺激的老年小鼠肠系膜动脉收缩。与DS组相比,补充HSMF可显著抑制主动脉中血管收缩基因和炎性细胞因子的表达。与DS组相比,HSMF可剂量依赖性降低主动脉中PKCα的蛋白表达。主动脉中的HSMF也抑制了MYPT1、CPI-17和MLC 20的磷酸化水平。此外,HSMF通过维持肾小球和肾小管的完整性来保护肾脏,并显著降低血浆中的NGAL水平。HSMF还通过降低炎症细胞因子表达和巨噬细胞浸润来抑制肾脏炎症。我们的研究结果证明,饮食中补充HSMF能显著改善血管功能,保护肾脏损伤,从而预防老年C57BL/6小鼠DS诱发的高血压。我们的数据表明,HSMF的膳食补充剂可能被用作预防老年人高血压的食品添加剂。(C) 2020年,作者。爱思唯尔公司出版。

著录项

  • 来源
  • 作者单位

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Ctr Biotechnol Hefei Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

    Anhui Agr Univ Sch Tea &

    Food Sci &

    Technol State Key Lab Tea Plant Biol &

    Utilizat Hefei 230036 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物化学;
  • 关键词

    Huangshan Maofeng Green tea; Senile hypertension; Desoxycorticosterone; Vascular function; Kidney injury;

    机译:黄山茂峰绿茶;老年高血压;脱氧性胶质酮;血管功能;肾损伤;

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