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Simvastatin improves learning and memory in control but not in olfactory bulbectomized rats.

机译:辛伐他汀可改善对照组的学习和记忆能力,但不能改善嗅球切除大鼠的学习和记忆能力。

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RATIONALE: Olfactory bulbectomy (OBX) in a laboratory rodent leads to numerous behavioral deficits and involves cognitive and motor changes that are used to model major depression, but may also be a valuable tool in the study of neurodegenerative disorders like Alzheimer's disease. OBJECTIVES: This experiment evaluated the effects of simvastatin, a cholesterol-lowering drug with putative neuroprotective properties, on OBX-induced behavioral changes. RESULTS: Chronic administration of simvastatin, starting 48 h after surgery, did not have any behavioral effect in OBX rats, as tested in open field, passive avoidance and object-recognition paradigms. In control rats, simvastatin treatment resulted in an improved performance in both the passive avoidance and the object-in-place task. CONCLUSION: In the present study, simvastatin treatment enhanced cognition in intact rats, but had no effect in OBX rats. These results are in line with the idea that statins may attenuate (early) age-associated cognitive decline in humans.
机译:理由:实验室啮齿动物的嗅球切除术(OBX)会导致许多行为缺陷,并涉及认知和运动变化,这些行为变化可用于模拟重度抑郁症,但在研究神经退行性疾病(如阿尔茨海默氏病)中也可能是有价值的工具。目的:本实验评估了辛伐他汀(一种具有公认的神经保护特性的降胆固醇药物)对OBX诱导的行为改变的影响。结果:在开阔视野,被动回避和物体识别范例中进行的实验显示,从术后48小时开始长期服用辛伐他汀对OBX大鼠没有任何行为影响。在对照大鼠中,辛伐他汀治疗可导致被动回避和就地任务的表现均得到改善。结论:在本研究中,辛伐他汀治疗可增强完整大鼠的认知能力,但对OBX大鼠无影响。这些结果与他汀类药物可减轻(早期)与年龄有关的人类认知能力下降的想法是一致的。

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