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多糖在脂多糖诱导的氧化应激和全身炎症动物模型中的治疗潜力。

Therapeutic Potential of Polysaccharides in an Animal Model of Lipopolysaccharide-Inflicted Oxidative Stress and Systemic Inflammation.

机构信息

Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.

Department of Pharmaceutical Chemistry, RAK College of Pharmaceutical Sciences, RAK Medical and Health Science University, Ras Al Khaimah 11172, UAE.

出版信息

Molecules. 2020 Dec 21;25(24):6045. doi: 10.3390/molecules25246045.

Abstract

Systemic inflammation results in physiological changes, largely mediated by inflammatory cytokines. The present investigation was performed to determine the effect of (RAP) on inflammatory parameters in the animal model. The RAP (100 and 200 mg/kg) were pre-treated for animals, given orally for one week, followed by lipopolysaccharide (LPS) injection. Body temperature, burrowing, and open field behavioral changes were assessed. Biochemical parameters (AST, ALT, LDH, BIL, CK, Cr, BUN, and albumin) were done in the plasma after 6 h of LPS challenge. Oxidative stress markers SOD, CAT, and MDA were measured in different organs. Levels of inflammatory markers like tumor necrosis factor-alpha (TNF-α), interleukin-1-beta (IL-1β) and, interleukin-6 (IL-6) as well as VEGF, a specific sepsis marker in plasma, were quantified. The plasma enzymes, antioxidant markers and plasma pro-inflammatory cytokines were significantly restored ( < 0.5) by RAP treatment, thus preventing the multi-organ and tissue damage in LPS induced rats. The protective effect of RAP may be due to its potent antioxidant potential. Thus, RAP can prevent LPS induced oxidative stress, as well as inflammatory and multi-organ damage as reported in histopathological studies in rats when administered to the LPS treated animals. These findings indicate that RAP can benefit in the management of systemic inflammation from LPS and may have implications for a new treatment or preventive therapeutic strategies with an inflammatory component.

摘要

全身炎症导致生理变化,主要由炎症细胞因子介导。本研究旨在确定(RAP)对动物模型中炎症参数的影响。RAP(100 和 200 mg/kg)对动物进行预处理,口服给药一周,然后注射脂多糖(LPS)。评估体温、挖洞和旷场行为变化。在 LPS 挑战 6 小时后,在血浆中进行生化参数(AST、ALT、LDH、BIL、CK、Cr、BUN 和白蛋白)。在不同器官中测量氧化应激标志物 SOD、CAT 和 MDA。定量测定血浆中炎症标志物如肿瘤坏死因子-α (TNF-α)、白细胞介素-1-β (IL-1β) 和白细胞介素-6 (IL-6) 以及 VEGF,一种特定的败血症标志物。RAP 治疗可显著恢复(<0.5)血浆酶、抗氧化标记物和促炎细胞因子,从而防止 LPS 诱导的大鼠多器官和组织损伤。RAP 的保护作用可能与其强大的抗氧化潜力有关。因此,RAP 可以预防 LPS 诱导的氧化应激以及炎症和多器官损伤,正如在 LPS 处理动物的组织病理学研究中报告的那样。这些发现表明,RAP 可以从 LPS 引起的全身炎症中获益,并且可能对具有炎症成分的新治疗或预防治疗策略具有重要意义。

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