A Polyphenolic Complex Attenuates Inflammatory Response and Blood- Brain Barrier Disruption

Author(s): Yuting Bian, Toru Yamashita, Yuki Taira, Jingwei Shang, Keiichiro Tsunoda, Tian Feng, Ryo Sasaki, Xia Liu, Xiaowen Shi, Koh Tadokoro, Emi Nomura, Namiko Matsumoto, Yusuke Osakada, Yoshio Omote, Mami Takemoto, Nozomi Hishikawa, Yasuyuki Ohta, Koji Abe*

Journal Name: Current Neurovascular Research

Volume 17 , Issue 3 , 2020

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Background: Cerebral ischemia causes a strong inflammatory response. Neumentix is a dietary supplement containing 14.9% rosmarinic acid and 29.9% total phenolic content, which has been proved to be beneficial against inflammatory response. Therefore, Neumentix’s effect on anti-inflammatory and blood brain barrier (BBB) disruption in transient middle cerebral artery occlusion (tMCAO) model mice is investigated in this study.

Methods: After the pretreatment of vehicle or Neumentix 134 mg/kg/d, intraperitoneal injection (i.p.) (containing rosmarinic acid 20 mg/kg/d) for 14 days, mice were subjected to tMCAO for 60 min and kept receiving vehicle or Neumentix daily 5 days afterward.

Results: Neumentix treatment ameliorated neurobehavioral impairment in the corner test (5d after tMCAO, **P<0.01), reduced infarct volume (#P<0.05), suppressed expression of ionized calciumbinding adapter molecule-1 (Iba-1), tumor necrosis factor alpha (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) (###P<0.001), and improved the integrity of BBB (§P<0.05) at 5 days after tMCAO.

Conclusion: The present study provided an evidence of Neumentix’s anti-inflammatory and neuroprotection effect against BBB disruption on experimental tMCAO model mice, suggesting that Neumentix could be a potential therapeutic agent for stroke.

Keywords: Ischemic stroke, middle cerebral artery occlusion, rosmarinic acid, polyphenolic complex, anti-inflammation, blood brain barrier.

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Year: 2020
Published on: 28 September, 2020
Page: [286 - 293]
Pages: 8
DOI: 10.2174/1567202617666200517105727
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