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氦氖激光的创新应用:提高猴面包树种子的发芽率,并评估其在小鼠体内的保肝活性。

Innovative application of helium-neon laser: enhancing the germination of Adansonia digitata and evaluating the hepatoprotective activities in mice.

机构信息

Department of Laser Applications in Metrology, Photochemistry and Agriculture (LAMPA), National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt.

Department of Medical Application of Lasers, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt.

出版信息

Environ Sci Pollut Res Int. 2020 Jul;27(21):26520-26531. doi: 10.1007/s11356-020-09036-0. Epub 2020 May 4.

Abstract

The laser pretreatment of seed is drawing pronounced attention from the scientific community for its positive impact in boosting germination, seedling , and growth of plants. In this study, the laser pretreatment of Adansonia digitata (A. digitata) seeds was evaluated. Eight laser treatments were conducted at different powers, 10, 20, 40, and 80 mW, with the two-time interval for each power at 2 and 4 min. The outcomes indicated that the most efficient irradiation was 10 mW/2 min which induces the highest germination rate and polyphenolic contents for seeds. Based on these results, the animal experimental design was processed to assess the hepatoprotective activity of A. digitata extracts obtained through the optimum laser preillumination to enhance the resistance of liver damage in mice. The total phenol and flavonoid contents and the antioxidant properties of the methanolic extracts were estimated in vitro. The CCl4 was used to induce hepatotoxicity in mice. The animals were divided into five groups. The sera of the treated animals were used for the determination of transaminases, and the liver homogenates were used for the determination of antioxidant status, and further liver tissues were subjected to verify the anti-apoptotic effect of A. digitata methanolic extract. The in vivo results showed that the methanolic extract exposed to laser treatment at 10 mW/2 min provided better hepatoprotective capacity than the other treatments. Administration of A. digitata extract not only offered a significant decrease in liver enzyme activity but also markedly improved the antioxidant status and reduced the apoptotic progression induced by CCl4 toxicity in liver tissue.

摘要

激光预处理种子因其对促进植物发芽、幼苗生长和生长的积极影响而引起科学界的关注。本研究评估了猴面包树(A. digitata)种子的激光预处理。在不同功率下进行了 8 次激光处理,功率分别为 10、20、40 和 80 mW,每次功率的两次时间间隔为 2 和 4 分钟。结果表明,最有效的辐照为 10 mW/2 min,可诱导种子发芽率和多酚含量最高。基于这些结果,进行了动物实验设计,以评估通过最佳激光预照射获得的猴面包树提取物的保肝活性,以提高小鼠肝脏损伤的抵抗力。体外评估了甲醇提取物的总酚和类黄酮含量以及抗氧化性能。使用 CCl4 诱导小鼠肝毒性。将动物分为五组。处理动物的血清用于测定转氨酶,肝匀浆用于测定抗氧化状态,并进一步对肝组织进行分析,以验证猴面包树甲醇提取物的抗凋亡作用。体内结果表明,10 mW/2 min 激光处理的甲醇提取物提供了比其他处理更好的保肝能力。猴面包树提取物的给药不仅显著降低了肝酶活性,而且显著改善了抗氧化状态,并减少了 CCl4 毒性诱导的肝组织中的凋亡进展。

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