インビトロおよびエクス・ヴィボ研究におけるナマケツの皮の抽出物の腸の保護効果
Lucia Recinella1, Alessandra Acquaviva1, Annalisa Bruno2,3
1Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, 66013 Chieti, Italy.
International journal of molecular sciences
|February 13, 2026
まとめ
石榴の皮抽出物 (PPE) は,障壁機能を回復することにより,腸内炎症と酸化ストレスから保護します. プニカラギン,ヒドロキシチロゾール,ロズマリン酸を含む豊富なポリフェノール含有量は,これらの有益な効果に貢献しています.
科学分野:
- 薬理学と毒理学について
- 胃腸内科 胃腸内科
- 自然製品化学 自然製品化学
背景:
- 石榴の皮 (PP) には,潜在的健康上の利点を持つ生物活性化合物が含まれています.
- 腸の炎症と酸化ストレスが,胃腸疾患の重要な要因である.
- PPエキス (PPE) の保護メカニズムを理解することは,その適用に不可欠です.
研究 の 目的:
- 腸の炎症に対する地中海のPPEの保護効果を調査する.
- PPEの抗酸化および抗炎症特性を in vitroおよびex vivoで評価する.
- 観察された効果とPPEの植物化学組成を相関させる.
主な方法:
- リポポリサッカリド (LPS) に損傷したCaco-2細胞を用いたインビトロ研究で,活性酸素種 (ROS),乳酸脱水素酶 (LDH),緊密な結合タンパク質-1 (ZO-1) の発現を評価した.
- 炎症マーカー (COX-2,NF-kB,TNF-α,IL-1β,i-NOS) と抗酸化酵素 (CAT,SOD,GPX) の遺伝子発現を評価するために,LPSによって刺激されたマウスの単離結腸標本に関するex vivo研究.
- 紫外線検出 (HPLC-UV) とスペクトロフォトメトリック技術による高性能液体染色を用いたPPEの植物化学的特徴化.
主要な成果:
- PPEは,LPSに損傷したCaco-2細胞におけるROS生成とLDH放出を著しく低下させ,ZO-1発現を上調させ,腸壁の完全性を回復させたことを示した.
- マウスの大腸では,PPEはLPS誘発のCOX-2,NF-kB,TNF-α,IL-1β,i-NOSの遺伝子発現を抑制し,抗炎症効果を示した.
- PPE治療は,抗酸化酵素SOD,CAT,GPXの発現を増加させ,酸化ストレスを軽減しました.
- 抽出物はプニカラギンAとB,ヒドロキシチロゾール (HT),カテキン,p-コマリック酸,ロズマリン酸に富んでいました.
結論:
- 石榴の皮のエキス (PPE) は,腸の炎症と酸化ストレスを効果的に軽減します.
- PPEは腸のバリア機能を回復させ,プニカラギン,HT,ロスマリン酸,カテキン,p-コマリン酸を含む豊富なポリフェノール成分が原因である可能性が高い.
- これらの発見は,胃腸の健康管理のために食品および製薬業界でPPEの使用を支持しています.
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