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大麻萜酚作为一种抗炎剂,改变高脂肪高糖饮食大鼠结肠组织中花生四烯酸衍生物的水平。

Cannabigerol as an anti-inflammatory agent altering the level of arachidonic acid derivatives in the colon tissue of rats subjected to a high-fat high-sucrose diet.

机构信息

Department of Physiology, Medical University of Bialystok, Bialystok, Poland.

出版信息

Biomed Pharmacother. 2024 Sep;178:117286. doi: 10.1016/j.biopha.2024.117286. Epub 2024 Aug 11.

Abstract

Fat and sugar overconsumption is the cause of increasing worldwide incidence of gastrointestinal tract in inflammatory conditions. The intestinal pre-inflammatory alterations are partially reversible, simultaneously inhibiting the predisposition to colitis. Searching for an effective pharmacotherapy for treating inflammatory conditions in the intestine is essential. This study aimed to investigate the effect of cannabigerol (CBG) on the inflammation state in the colon tissue of rats subjected to high-caloric diet. The experiment was conducted on male Wistar rats subjected to a standard or a high-fat high-sucrose diets for six weeks. For the last 14 days, half of rats from both groups received intragastrically cannabigerol solution (30 mg/kg of body mass). The ratio of n-6/n-3 PUFA, the activity of n-6 and n-3 PUFA, and arachidonic acid (AA) content in selected lipid fractions were determined by gas-liquid chromatography. Immunoblotting examined the expression of proteins involved in inflammation development. ELISA kits measured the content of arachidonic acid derivatives. CBG treatment reduced the n-6/n-3 PUFA ratio in TAG fraction and increased the n-3 PUFA pathway activity in almost all lipid fractions. Cannabigerol supplementation decreased AA concentration in PL and TAG. CBG also caused diminishments in the expression of cPLA, COX-1, COX-2, and 12/15-LOX, which was indirectly correlated with a decreased LTB4 level and an increased LXA4 level. We concluded that cannabigerol has a protective influence on the development of inflammation in the colon tissue under lipid and sugar overload condition, thereby favoring cancer initiation and progression.

摘要

脂肪和糖摄入过多是导致全球胃肠道炎症发病率上升的原因。肠道炎症前的改变部分是可逆的,同时抑制了结肠炎的易感性。寻找一种有效的肠道炎症的药物治疗方法是至关重要的。本研究旨在探讨大麻萜酚(CBG)对高热量饮食大鼠结肠组织炎症状态的影响。实验采用雄性 Wistar 大鼠,分为标准饮食组或高脂肪高蔗糖饮食组,分别喂养 6 周。在最后 14 天,两组大鼠的一半给予大麻萜酚溶液(30mg/kg 体重)灌胃。通过气相色谱法测定选择的脂质部分中 n-6/n-3 PUFA 比值、n-6 和 n-3 PUFA 的活性以及花生四烯酸(AA)的含量。免疫印迹法检测参与炎症发展的蛋白质的表达。ELISA 试剂盒测定花生四烯酸衍生物的含量。CBG 治疗降低了 TAG 部分的 n-6/n-3 PUFA 比值,并增加了几乎所有脂质部分的 n-3 PUFA 途径活性。CBG 补充降低了 PL 和 TAG 中的 AA 浓度。CBG 还导致 cPLA、COX-1、COX-2 和 12/15-LOX 的表达减少,这与 LTB4 水平降低和 LXA4 水平升高间接相关。我们得出结论,大麻萜酚对脂质和糖超负荷条件下结肠组织炎症的发展具有保护作用,从而有利于癌症的发生和发展。

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