Averyanova E V, Shkolnikova M N, Chugunova O V, Mazko O N
Biysk Technological Institute, Branch of the Altay State Technical University, Biysk, Altai Region, Russia.
Ural State University of Economics, Yekaterinburg, Russia.
Dokl Biochem Biophys. 2025 Feb;520(1):58-66. doi: 10.1134/S1607672924701229. Epub 2025 Jan 22.
One of the principles of prevention and non-drug treatment of liver diseases, including hepatitis of various etiologies, is the normalization of the diet, including the use of daily diet foods with physiologically active ingredients, in particular betulin, which helps to reduce metabolic and oxidative processes within liver cells. The aim of the work was to evaluate the in vivo effect of triterpene alcohol betulin Roth isolated from the bark of birch Betula pendula Roth. added to fat-containing products (for example, mayonnaise) on the biochemical parameters of blood and the morphological structure of the liver of rats with initiated acute toxic hepatitis.
The composition of mayonnaise (67% fat) was developed with the addition of 0.2% betulin solution in vegetable oil in an amount of 6%. The hepatoprotective activity of betulin in mayonnaise samples was studied on a model of toxic hepatitis initiated by carbon tetrachloride in male Wistar rats. Disturbance of metabolic and oxidative processes in the liver cells of animals was assessed by biochemical parameters of blood plasma and the enzyme activity of the liver sample. The effect of experimental samples of mayonnaise with betulin on the morphological structure of the liver of rats with toxic hepatitis was evaluated by microscopy of prepared sections of liver tissue.
The preventive efficacy of betulin in mayonnaise was confirmed in an in vivo experiment: its administration weakens the hepatotoxic effect of carbon tetrachloride, as indicated by a significant decrease in the activity of ALT, AST, and alkaline phosphatase enzymes in the blood plasma of animals MG-1 compared with the blood of rats CG-2-ALT by 22.1%, AST by 21.9%, and alkaline phosphatase by 42.5%. A 13.9% decrease in GGT activity in MG-1 animals indicates a more intensive nitrogen metabolism with a decrease in the level of hepatocyte cytolysis compared to animals of the experimental MG-2 group. It was shown that the introduction of mayonnaise with betulin in a dose of 1 ml into the diet of animals, which corresponds to 35 mg of betulin, prevented the development of cytolytic syndrome and suppressed peroxidation by direct neutralization of free radicals.
The experiment showed a significant decrease in cholesterol, glucose, and enzyme activity of the liver sample and normalization of albumin and triglyceride concentrations in animals of the experimental group in comparison with similar indices in the control group. Betulin in mayonnaise contributed to the antioxidant protection of the body, expressed in the effect on the activity of antioxidant enzymes that are involved in the destruction of organic peroxides, especially lipid peroxides, disturbing the integrity of cell membranes.
预防和非药物治疗肝脏疾病(包括各种病因的肝炎)的原则之一是饮食正常化,包括食用含有生理活性成分的日常饮食食物,特别是桦木醇,它有助于减少肝细胞内的代谢和氧化过程。这项工作的目的是评估从白桦树皮中分离出的三萜醇桦木醇对引发急性中毒性肝炎的大鼠血液生化参数和肝脏形态结构的体内作用。
开发了含67%脂肪的蛋黄酱配方,添加了6%的0.2%桦木醇植物油溶液。在雄性Wistar大鼠中,以四氯化碳引发的中毒性肝炎模型研究了蛋黄酱样品中桦木醇的保肝活性。通过血浆生化参数和肝脏样品的酶活性评估动物肝细胞中代谢和氧化过程的紊乱。通过对肝组织切片的显微镜检查评估含桦木醇的蛋黄酱实验样品对中毒性肝炎大鼠肝脏形态结构的影响。
体内实验证实了蛋黄酱中桦木醇的预防效果:与CG - 2 - ALT组大鼠血液相比,其给药减弱了四氯化碳的肝毒性作用,表现为MG - 1组动物血浆中ALT、AST和碱性磷酸酶活性显著降低,ALT降低22.1%,AST降低21.9%,碱性磷酸酶降低42.5%。与实验MG - 2组动物相比,MG - 1组动物GGT活性降低13.9%,表明氮代谢更活跃,肝细胞溶解水平降低。结果表明,给动物饮食中添加1毫升含桦木醇的蛋黄酱(相当于35毫克桦木醇)可预防细胞溶解综合征的发生,并通过直接中和自由基抑制过氧化反应。
实验表明,与对照组的类似指标相比,实验组动物肝脏样品的胆固醇、葡萄糖和酶活性显著降低,白蛋白和甘油三酯浓度正常化。蛋黄酱中的桦木醇有助于机体的抗氧化保护,表现为对参与破坏有机过氧化物(尤其是脂质过氧化物)的抗氧化酶活性的影响,脂质过氧化物会破坏细胞膜的完整性。