Abstract:Objective To observe the effects of different Propofol anesthesia doses on rat hypothalamus, pituitary, hippocampus Akt and amyloid beta protein (Aβ). Methods 24 SPF grade male rats were used by method of low-dose tail intravenous injection (10 mg/mL) for 3 times. The rats were divided into 4 groups by methods of cumulative dose, control, Propofol group Ⅰ (10 mg/mL), Propofol group Ⅱ (20 mg/mL) and Propofol group Ⅲ (30 mg/mL), respectively. No anaesthetic management was given in control group, with 6 rates in each group. Electroencephalogram was detected by electroencephalograph; the pathology of rat hypothalamic arcuate nucleus neurons and pituitary gonadotropin cell was observed by HE staining. Western blot detection was used to detect the expression of the Akt and Aβ. Results Compared with the control group, the spike wave, α wave and β wave increased significantly with the increase of the Propofol dose (P < 0.05), and the δ wave decreased significantly with the Propofol dose increasing (P < 0.05). The density and distribution of hypothalamic arcuate nucleus were normal in the control group, with the large whole number of adenohypophysis cells, abundant sinusoid capillary between cells, and the cells were arranged regularly; no obvious lesions of rats arcuate nucleus neuron in Propofol group Ⅰ was observed, as well as no obvious reduction in adenohypophysis cells. With increasing of dose of anesthesia, the number of hypothalamic neuron cells and adenohypophysis cells reduced significantly, with unclear boundary of nuclear membrane and an increase in the number of irregular arrangement cells. The Western blot results suggested that with increasing of the Propofol dose, the Akt hippocampus protein expression reduced dramatically (P < 0.01) while Aβ expression increased significantly (P < 0.01) in anesthesia group comparing with control. Conclusion Low-dose Propofol anesthesia can not cause lesions in hypothalamus and hypophysis, but their feedback effects enhanced with Propofol dose increasing, causing pathological changes. The deposition effects of Propofol anesthesia on Aβ may be achieved by inhibiting Akt pathway.
谢恒韬 潘侠 何旋 刘康 王龙▲. 不同丙泊酚剂量对大鼠下丘脑垂体、海马Akt及淀粉样β蛋白的影响[J]. 中国医药导报, 2017, 14(19): 24-27.
XIE Hengtao PAN Xia HE Xuan LIU Kang WANG Long▲. Effects of different dose of Propofol on hypothalamus, pituitary, hippocampus Akt and amyloid β protein of rats. 中国医药导报, 2017, 14(19): 24-27.
[1] Hemandez Rabaza V,Llorens-Martin M,Velazquez-Sanchez C,et al. Inhibition of adult hippocampal neurogenesis disrupts contextual learning but spares spatial working memory,long-term conditional rule retention and spatial reversal [J]. Neuroscience,2009,159(1):59-68.
[2] 盖志辉,李康,佘晓俊,等.长期噪声暴露对大鼠海马CRF系统的影响[J].解放军预防医学杂志,2017,35(2):102-105.
[3] Wei H,Xiong W,Yang S,et al. Propofol facilitates the development of long-term depression(LTD) and impairs the maintenance of long-term potentiation(LTP) in the CAI region of the hippocampusof anesthetized rats [J]. Neurosci Lett,2002,324(3):181-184.
[4] Ishizeki J,Nishikawa K,Kubo K,et al. Amnestic concentrations of sevoflurane inhibit synaptie plasticity of hippocampal CAl neurons through gamma aminobutyrie acid-mediated mechanisms [J]. Anesthesiology,2008,108(3):447-456.
[5] Judge O,Hill S,Antognini JF. Modeling the effects of midazolam on cortical and thalamic neurons [J]. Neurosci Lett,2009,464(2):135-139.
[6] 宋素英,孟欣,佟继铭,等.大黄总蒽醌对雌性大鼠下丘脑、垂体功能和结构的影响及可逆性[J].中国实验方剂学杂志,2017,12(1):169-173.
[7] 何厦,徐丹,卢娟,等.孕期尼古丁暴露子代大鼠饲喂高脂饮食对下丘脑-垂体-肾上腺轴敏感性的影响及发生机制[J].中国药理学与毒理学杂志,2017,31(1):80-86.
[8] 胡恩元,张敏,肖践明.慢性压力与冠心病患者体内皮质醇水平的关系[J].心血管病学进展,2017,38(1):94-97.
[9] 高春芳,张根葆,陆晓华,等.清醒与麻醉状态下大鼠脑电复杂度特征的比较[J].临床麻醉学杂志,2017,33(1):63-65.
[10] 刘军辉,赵永灵,喻军.Livin蛋白表达于结直肠癌组织病理参数间关系研究[J].中华实用诊断与治疗杂,2015, 29(12):1160-1162.
[11] Larsson JE,Wahlstrom G. Optimum rate of administration of propofol for induction ofanaesthesia in rats [J]. Br J Anaesth,1994,73(5):692-694.
[12] Jang HS,Choi HS,Lee MG. Effects of propofol administration rates on cardiopulmonary function and anaesthetic depth during anaesthetic induction in rats [J]. Vet Anaesth Analg,2009,36(3):239-245.
[13] 张嘉妮,李玉星,杨梦琳,等.六味地黄汤及“补泻”药对对肾阴虚模型小鼠下丘脑-垂体-性腺轴功能的影响[J].中国现代应用药学,2017,34(1):25-29.
[14] 孙秋岩,单忠艳,滕卫平,等.应激对下丘脑-垂体-甲状腺轴影响的研究进展[J].山东医药,2015,55(17):92-94.
[15] 佟继铭,刘梦杰,万慧杰,等.大黄对幼年雌性大鼠下丘脑垂体结构及激素水平的影响[J].中药药理与临床,2016,32(1):116-119.
[16] 王姝,邓姗.垂体促性腺激素瘤导致的卵巢过度刺激综合征[J].生殖医学杂志,2017,26(1):70-73.
[17] 赵岩,孙景权,谢敏豪,等.6周自由转轮运动对高脂饲养雄性大鼠性激素及下丘脑-垂体-睾丸轴的影响[J].中国实验动物学报,2016,24(4):381-387.
[18] 赵盼盼,佟继铭,马淑月,等.大黄不同萃取物对大鼠体质量及下丘脑、垂体组织结构的影响[J].药物评价研究,2017,40(2):215-219.
[19] Hers I,Vincent EE,Tavare JM. Akt signalling in health and disease [J]. Cell Signal,2011,23(10):1515-1527.
[20] Yin G,Li LY,Qu M,et al. Upregulation of AKT attenuates amyloidbeta-induced cell apoptosis [J]. J Alzheimers Dis,2011,25(2):337-345.
[21] 路书彦,杨丽,戴雪伶,等.姜黄素对Aβ1-42诱导的细胞损伤和线粒体途径细胞凋亡的抑制作用[J].中国药理学与毒理学杂志,2017,31(2):138-144.