Department of Immunology, Amala Cancer Research Centre, Amala Nagar, Thrissur, Kerala 680 555, India.
Can J Physiol Pharmacol. 2010 Nov;88(11):1042-53. doi: 10.1139/y10-086.
Ipomoea obscura L. is a widely used medicinal plant. The objective of this study was to investigate its protective activity against cyclophosphamide (CTX)-induced toxicity in mouse models. Swiss albino mice were treated intraperitoneally with CTX (25 mg/kg body weight) along with I. obscura extract (10 mg/kg body weight) for 10 days. Extract significantly reduced myelosuppression caused by CTX and improved the relative organ weight, total white blood cell count, and bone marrow cellularity. The elevated levels of parameters related to pathophysiology of the liver, namely glutamate pyruvate transaminase, alkaline phosphatase, and lipid peroxidation, were significantly reduced by extract treatment. Reduction of liver and intestinal glutathione levels of CTX-treated animals was reversed by I. obscura. The lowered levels of cytokines, namely IFN-γ, IL-2, and granulocyte-monocyte colony-stimulating factor after CTX treatment were found to be increased in I. obscura treated animals. Treatment with I. obscura could also decrease the level of proinflammatory cytokine TNF-α. The data suggested that I. obscura can act as a potent chemoprotective agent and can be used as an adjuvant in chemotherapeutic applications.
Ipomoea obscura L. 是一种广泛使用的药用植物。本研究旨在探讨其对环磷酰胺 (CTX) 诱导的小鼠模型毒性的保护活性。瑞士白化小鼠经腹腔注射 CTX(25mg/kg 体重),同时给予 I. obscura 提取物(10mg/kg 体重),共 10 天。提取物显著减轻了 CTX 引起的骨髓抑制,并改善了相对器官重量、总白细胞计数和骨髓细胞密度。提取物处理可显著降低与肝脏病理生理相关的参数的升高水平,即谷氨酸丙酮酸转氨酶、碱性磷酸酶和脂质过氧化。CTX 处理动物的肝和肠谷胱甘肽水平降低被 I. obscura 逆转。在 CTX 处理后,细胞因子 IFN-γ、IL-2 和粒细胞-单核细胞集落刺激因子的水平降低,在给予 I. obscura 处理的动物中发现其水平增加。用 I. obscura 处理还可以降低促炎细胞因子 TNF-α 的水平。数据表明,Ipomoea obscura 可以作为一种有效的化学保护剂,并可作为化疗应用的辅助剂。