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1.
《中国兽医学报》2017,(9):1748-1752
24只SD大鼠被随机分成对照组、麻醉组和催醒组,对照组注射二甲基亚砜,麻醉组注射舒泰(13.81mg/kg)和噻啦嗪(5.21mg/kg),催醒组在给予麻醉剂10min后注射阿替美唑(0.522mg/kg),试验组大鼠分别于给药1h(即麻醉期)即刻,断头处死,冰面上分离丘脑和大脑皮质,利用免疫印记技术测定Fos蛋白表达量。结果显示,舒泰联合噻啦嗪注射后引起麻醉期大鼠丘脑和大脑皮质脑区Fos蛋白表达量显著高于对照组(P<0.01),阿替美唑注射后显著地抑制了舒泰联合噻啦嗪诱导大鼠丘脑和大脑皮质脑区Fos蛋白表达(P<0.01)。结果表明,阿替美唑可抑制舒泰联合噻啦嗪麻醉引起大鼠中枢脑区Fos蛋白的表达,对神经损伤起到一定的保护作用。 相似文献
2.
研究阿替美唑对小型猪特异性麻醉剂(XFM)麻醉下大鼠大脑皮质Fos蛋白表达的影响,探讨阿替美唑颉颃XFM催醒大鼠与大脑皮质c-fos基因的关系。将72只SD纯种大鼠随机分为XFM对照组、XFM+阿替美唑组、XFM+生理盐水组,每组又按采脑时间点分成4个亚组。采用蛋白质印迹法检测大脑皮质内Fos蛋白表达量。结果表明:XFM麻醉大鼠大脑皮质内Fos蛋白表达量逐渐增加,与给药后10min比较差异显著(P<0.01或P<0.05);XFM麻醉大鼠腹腔注射生理盐水,各时间点Fos蛋白表达量与对照组间比较无显著差异(P>0.05);阿替美唑注射后引起XFM麻醉大鼠大脑皮质Fos蛋白表达量减少,与XFM对照组比较差异显著(P<0.01或P<0.05)。结果提示,大脑皮质c-fos基因参与了阿替美唑颉颃XFM麻醉作用。阿替美唑抑制XFM诱导大鼠大脑皮质Fos蛋白表达,可能是阿替美唑催醒XFM麻醉大鼠的重要机理之一。 相似文献
3.
《中国兽医学报》2017,(6):1115-1120
为研究曲马多(tramadol,INN)作用下大鼠不同脑区AMPK(腺苷单磷酸活化蛋白激酶)表达量的变化,探讨INN的中枢镇痛机制,将30只SD纯种大鼠随机分为对照组和INN组(Q组),Q组又分为4个亚组:Q1组(注射INN后10min)、Q2组(注射INN后20min)、Q3组(注射INN后40min)和Q4组(注射INN后60min),各组大鼠到达预定的时间点后分别采取脑组织,应用RT-PCR法检测脑内AMPKα1、α2mRNA转录量,应用Western blot方法检测p-AMPK蛋白的相对表达量。结果显示:腹腔注射INN后引起大鼠各脑区AMPKα1、α2mRNA高效表达,各时期AMPKα1、α2mRNA表达与对照组比较差异显著(P<0.01或P<0.05);在小脑区p-AMPK蛋白的相对表达量在10min时间点与对照组比较差异极显著(P<0.01),在大脑皮层、丘脑和脑干区其相对表达量在40,60 min时间点与对照组比较差异显著(P<0.01或P<0.05),海马区则只在40min时间点差异极显著(P<0.01)。结果提示,大鼠各脑区的AMPK参与了INN的镇痛过程,而INN的镇痛机制可能与AMPK的高效表达有关。 相似文献
4.
替来他明诱导大鼠中枢神经系统c-fos基因的表达 总被引：1，自引：1，他引：0
本研究旨在观察替来他明麻醉后大鼠中枢神经系统c-fos基因的表达,了解替来他明在中枢神经系统的作用部位,探讨替来他明对中枢神经系统的作用机制。72只SD大鼠,随机分为生理盐水组、给药后10、30、60、90、100、120和180 min组,每组9只。腹腔注射替来他明50 mg.kg-1后,分别于给药前(生理盐水组)和给药后10、30、60、90、100、120和180 min经4%多聚甲醛(0.1 mol.L-1,PB,pH7.4)灌注后,取脑,将脑分为大脑皮层、海马、丘脑、小脑、脑干5个脑区,置于20%蔗糖溶液中24 h(4℃)脱水。冰冻切片,片厚10μm,按照Elivision法进行免疫组化染色,观察鉴别Fos阳性神经元并做阳性神经元计数。结查显示,对照组中仅发现少量Fos阳性神经元,试验组中Fos阳性神经元在大脑皮层、海马、丘脑、小脑、脑干内都有表达。替来他明腹腔注射10 min后Fos阳性神经元表达开始增加,60 min表达至高峰,90 min表达下降,180 min下降至基线水平,与给药前相比无显著性差异(P0.05)。结果提示,替来他明能诱导大鼠大脑皮层、海马、丘脑、小脑、脑干c-fos基因的表达,大脑皮层、海马、丘脑、小脑和脑干是替来他明的作用位点。 相似文献
5.
笔者模拟人类经消化道长期慢性暴露于百草枯的方式,制备大鼠抑郁症模型并进行评价。将大鼠随机分为高剂量组(10 mg/kg百草枯),低剂量组(5 mg/kg百草枯)和对照组(生理盐水),每组8只,连续灌胃4个月后运用行为学等相关研究评价动物抑郁状况。给药4个月后,与对照组相比,高剂量组大鼠呆滞、反应迟钝、学习记忆能力显著下降,且旷场试验中的大鼠中央活动时间、悬尾试验与强迫游泳试验的绝对不动时间都具显著性差异,表现出了典型的抑郁症状;低剂量组与对照组相比上述变化不明显。本试验说明,采用长期口服百草枯可以建立具有典型症状的抑郁模型,这将为抑郁症的发病机制及药物治疗等方面的研究奠定基础。 相似文献
6.
探讨游泳训练对糖尿病大鼠的降血糖作用。通过高糖高脂饲料喂养6周,后一次性腹腔注射链脲佐菌素方法建立糖尿病大鼠模型,将28只造模成功大鼠随机分为模型组和游泳组,15只健康大鼠为对照组。游泳组大鼠进行8周的游泳训练。检测各组大鼠的空腹血糖(FBG)、糖化血清蛋白(GSP)、空腹血清胰岛素(Fins)、C-肽(C-P)、超氧化物歧化酶(SOD)、丙二醛(MDA)、葡萄糖转运子蛋白4(GLUT4)和胰十二指肠同源盒因子(PDX-1)的水平。结果表明,与对照组比较,模型组大鼠FBG、GSP、MDA水平明显升高(P 0. 05),Fins、C-P、SOD、GLUT4、PDX-1水平明显降低(P 0. 5);与模型组比较,游泳组大鼠FBG、GSP、MDA水平明显降低(P 0. 05),Fins、C-P、SOD、GLUT4、PDX-1水平明显升高(P 0. 05)。说明游泳训练可以改善促进糖尿病大鼠GLUT4和PDX-1的表达,提高抗氧化能力,促进胰岛素和C-肽分泌,从而降低血糖。 相似文献
7.
《畜牧与兽医》2016,(7):10-14
旨在研究小型猪复合麻醉剂(XFM)对大鼠不同脑区LKB1基因mRNA转录和p-LKB1蛋白表达的影响。将30只SD大鼠随机分成XFM组(M组)和生理盐水对照组(C组),M组又按照时间点的不同分为4个亚组。各组大鼠到达试验设计时间点后分别采取脑组织并分离各脑区,采用PCR和Western blot技术,分别检测各试验组中大鼠不同脑区LKB1基因mRNA的相对表达量和p-LKB1蛋白表达量。结果显示:在试验的麻醉早期阶段(即M1和M2),各脑区LKB1基因mRNA转录与对照组相比均未出现显著变化(P0.05);大脑皮层、海马及小脑p-LKB1蛋白表达与对照组比较并无显著变化(P0.05),而丘脑与脑干p-LKB1蛋白表达与对照组比较则明显升高,且丘脑差异显著(P0.05),脑干差异极显著(P0.01)。而在麻醉后期阶段(即M3和M4)各脑区LKB1基因mRNA转录表达明显上升,尤以M4突出,差异极显著(P0.01),其中丘脑和脑干变化最为明显;大脑皮层、海马及小脑p-LKB1蛋白表达与对照组比较均无明显变化(P0.05),但丘脑和脑干p-LKB1蛋白表达呈现显著升高(P0.05)。研究表明,XFM麻醉作用可能影响大鼠中枢神经系统中LKB1基因mRNA的转录和p-LKB1蛋白的表达。 相似文献
8.
《畜牧与兽医》2020,(3):124-129
本研究探讨了白细胞介素(interleukin, IL)-1β在类风湿性关节炎(rheumatoid arthritis, RA)发病中的作用,并评估IL-1β-siRNA联合骨髓间充质干细胞(BMSCs)治疗RA的效果。首先建立Ⅱ型胶原诱导关节炎(CIA)大鼠模型,然后将成功建立的模型大鼠随机分为3组,分别注射PBS,IL-1β-siRNA以及IL-1β-siRNA联合BMSCs,注射1、2、3、4周后分别检测大鼠形态学、行为学、组织病理学和免疫学的变化情况,综合评估IL-1β-siRNA联合BMSCs治疗RA的效果。结果显示,与正常对照组大鼠相比,CIA模型组大鼠体重增长、强迫游泳挣扎时间以及脾脏组织中转化生长因子-β(TGF-β1)和叉头状螺旋转录因子3(Foxp3)mRNA表达均显著降低,并呈现典型的关节炎症状,而足趾肿胀值、强迫游泳不动时间及血清中IL-1β水平均显著升高,表明RA大鼠模型构建成功,且IL-1β可能与RA的发病密切相关。在治疗试验中,与PBS注射组大鼠相比,IL-1β-siRNA以及IL-1β-siRNA联合BMSCs协同注射均可以显著提高大鼠体重增长、强迫游泳挣扎时间及脾脏组织中TGF-β1和Foxp3 mRNA表达水平,并显著降低足趾肿胀值、强迫游泳不动时间和血清IL-1β水平,并且IL-1β-siRNA联合BMSCs协同治疗效果显著优于IL-1β-siRNA单独治疗组。本研究结果说明Ⅱ型胶原蛋白可成功诱导大鼠RA模型,IL-1β可能在RA的发病中起重要作用,IL-1β-siRNA联合BMSCs协同治疗可以增强RA的治疗效果,从而为基因联合细胞治疗RA提供了理论基础。 相似文献
9.
为了探讨运输应激对动物肺脏免疫机能的影响及黄芪生脉饮的调控作用,本试验通过构建大鼠模拟运输应激模型,研究黄芪生脉饮对模拟运输应激大鼠体质量、皮质酮含量、肺组织结构影响,及肺脏组织IL-1β、IL-6、TNF-α和IFN-γmRNA表达和NF-κB信号通路的影响。将30只SD雄性大鼠随机分为对照组、模型组及黄芪生脉饮组,分别给黄芪生脉饮组大鼠连续灌服黄芪生脉饮,对照组、模型组大鼠灌服生理盐水7d后,将模型组和黄芪生脉饮组大鼠置于35℃、60r/min的水平摇床上每日摇晃2h,持续3d以构建模拟运输应激模型,于第3天结束后立即乙醚麻醉采集血清、肺组织样品进行检测。结果表明:模型组和黄芪生脉饮组大鼠体质量均显著低于对照组(P0.05);黄芪生脉饮组大鼠血清皮质酮浓度显著低于模型组(P0.05),但显著高于对照组(P0.05);模拟运输应激可引起大鼠肺脏组织水肿,炎性细胞浸润,而黄芪生脉饮组大鼠肺组织结构炎性浸润、水肿程度均较模型组轻微;模型组大鼠的肺组织IL-1β、IL-6、TNF-α和IFN-’mRNA表达量均显著高于黄芪生脉饮组和对照组(P0.05),且黄芪生脉饮组与对照组无明显差异(P0.05);模型组大鼠肺脏组织IκB(和p65的磷酸化水平均显著高于对照组和黄芪生脉饮组(P0.05),而黄芪生脉饮组与对照组无显著性差异(P0.05)。因此,模拟运输应激可诱导大鼠肺组织的炎性损伤,黄芪生脉饮可通过NF-κB信号通路抑制大鼠肺组织的炎性细胞因子表达,缓解大鼠模拟运输应激性肺脏组织炎性损伤。 相似文献
10.
应激宁对HSP70在大鼠应激性溃疡中表达的影响 总被引：2，自引：0，他引：2
为了探讨热休克蛋白70(HSP70)在应激性溃疡中表达的变化及应激宁对其变化的影响,选用Wistar大鼠水浸-束缚应激(WRS)4 h的方法,建立应激性溃疡模型.用免疫组织化学方法检测胃黏膜组织HSP70的表达.结果表明,HSP70的表达主要分布在胃腺区,对照组大鼠胃黏膜组织中有散在的表达,应激组中HSP70阳性细胞数目较应激宁组增多,两者具有明显的差异(P＜0.05),而且,应激组和应激宁组中HSP70阳性细胞数目均比对照组明显增多(P＜0.01).表明应激宁对WRS后胃黏膜组织HSP70的表达具有调节作用,这也表明应激宁具有抗应激的作用. 相似文献
11.
Mao NAGASAWA Tatsuro MURAKAMI Shozo TOMONAGA Mikako SATO Yoshihisa TAKAHATA Fumiki MORIMATSU Mitsuhiro FURUSE 《Animal Science Journal》2012,83(12):777-787
Several studies have shown a relationship between depression and animal protein intake. To evaluate whether the difference of dietary chicken protein levels induces an antidepressant‐like effect and potentiates acute antidepressant effects, three levels of dietary chicken protein were used as the representative animal protein with imipramine used as the antidepressant. In addition, the effects of dietary chicken protein on brain metabolism were evaluated. Open field test (OFT) and forced swimming test (FST) were conducted on the 27th and 28th days, respectively. OFT and FST were not influenced by both imipramine and dietary protein levels. However, characteristic effects of imipramine treatment on brain monoamine metabolism were observed in the cerebral cortex and hypothalamus. In addition, dietary protein significantly increased taurine and L‐ornithine levels even though these amino acids were not contained in the diets. In conclusion, the metabolism of several amino acids in the plasma and brain were altered by dietary chicken protein. 相似文献
12.
Moriyama R Reyes BA Tsukamura H Maeda K 《The Journal of reproduction and development》2003,49(2):151-157
Glucoprivation induced by 2-deoxy-D-glucose (2DG) suppresses pulsatile luteinizing hormone (LH) secretion in female rats. The suppression is enhanced in the presence of estrogen. In the present study, 2DG-induced Fos expression was examined in the solitary tract nucleus (NTS), hypothalamic paraventricular nucleus (PVN), raphe obscurus nucleus (ROb) and raphe pallidus nucleus (RPa), which have been previously suggested to be involved in glucoprivation-induced suppression of LH secretion in female rats. Ovariectomized (OVX) or estrogen-primed ovariectomized (OVX+E(2)) rats were injected intravenously with 2DG (400 mg/kg BW). The brain was removed 1 h after the injection. The number of Fos-like-immunoreactive (Fos-li) cells in the PVN and NTS was significantly increased in OVX+E(2) rats compared with control groups, but did not show a significant increase in the OVX group. Few Fos-li cells were observed in the ROb and RPa in all groups. All of the Fos-li cells in the PVN and NTS were neurons because they had immunoreactivities to microtubule-associated protein 2. Some Fos-li cells (8.3%) had tyrosine hydroxylase-like immunoreactivities in the NTS in 2DG-treated OVX+E(2) rats. These results suggest that neurons in the PVN and NTS are involved in the estrogen-dependent neural cascade mediating glucoprivic suppression of LH secretion in female rats. 相似文献
13.
为探讨游泳应激对小鼠肾脏、肺脏和脑组织脂质过氧化水平的影响,本试验选取50只小鼠进行游泳试验,于游泳前、游泳10、20、30、50 min后分别随机选取10只小鼠眼眶采血致死,采集肾脏、肺脏和脑组织,测定样品中MDA含量、SOD和GSH-Px活性。结果表明,10或20 min游泳应激后,小鼠肾脏、肺脏和脑组织MDA含量均显著增加(P<0.05),之后均有不同程度的降低;游泳过程中小鼠肾脏SOD活性持续升高,30和50 min后均显著升高(P<0.05),游泳20 min后肺脏SOD活性显著降低(P<0.05),30 min后有所回升,50 min后又轻微下降,游泳过程中脑组织SOD活性均无显著性变化;游泳20和30 min后,肾脏GSH-Px活性显著增加(P<0.05),50 min后显著下降(P<0.05),游泳前40 min过程中肺脏GSH-Px持续下降,30 min组显著降低(P<0.05),游泳10和20 min后,脑组织GSH-Px活性显著降低(P<0.05),之后发生波动性变化。结果提示,游泳应激显著影响小鼠肾脏、肺脏和脑组织脂质过氧化水平,推测游泳应激可能引起小鼠全身脂质过氧化反应。 相似文献
14.
Acupoint stimulation using bee venom attenuates formalin-induced pain behavior and spinal cord fos expression in rats 总被引：2，自引：0，他引：2
Kim HW Kwon YB Ham TW Roh DH Yoon SY Lee HJ Han HJ Yang IS Beitz AJ Lee JH 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2003,65(3):349-355
In two previous reports, we have demonstrated that injection of bee venom (BV) into an acupoint produces a significant antinociceptive and anti-inflammatory effect in both a mouse model of visceral nociception and a rat model of chronic arthritis. The present study was designed to evaluate the potential antinociceptive effect of BV pretreatment on formalin-induced pain behavior and it associated spinal cord Fos expression in rats. Adult Sprague-Dawley rats were injected with BV directly into the Zusanli (ST36) acupoint or into an arbitrary non-acupoint located on the back. BV pretreatment into the Zusanli acupoint significantly decreased paw-licking time in the late phase of the formalin test. In contrast, BV injected into a non-acupoint in the back region did not suppress the paw-licking time. In addition, BV pretreatment into the Zusanli acupoint markedly inhibited spinal cord Fos expression induced by formalin injection. These findings indicate that BV pretreatment into the Zusanli acupoint has an antinociceptive effect on formalin-induced pain behavior. 相似文献
15.
环境浓度三丁基锡对根田鼠情感行为的影响 《畜牧与饲料科学》2015,36(2):25-25
旨在研究环境浓度三丁基锡（tributyltin,TBT）对根田鼠情感行为的影响。实验组用1.0μg/m L的TBT按5μL/（g·BW）每3 d灌胃1次,对照组用等体积生理盐水做相同处理,暴露实验持续45 d。灌胃结束后,连续3 d对所有根田鼠进行旷场实验、高架十字迷宫实验和强迫游泳实验,观察根田鼠情感行为的变化。结果显示,在旷场实验中,雌、雄实验组根田鼠在四角格、中央格、过线频次上与对照组相比均无显著差异;雌性实验组根田鼠在四角格的直立频次显著高于对照组（P〈0.05）。在高架十字迷宫实验中,雌、雄实验组根田鼠在封闭臂内的时间和频次、开放臂频次及探头频次与对照组相比均无显著差异;而雌性实验组根田鼠在开放臂的时间显著低于对照组（P〈0.05）,探头时间显著高于对照组（P〈0.05）,雄性实验组根田鼠在开放臂的时间显著低于对照组（P〈0.05）。在强迫游泳实验中,雌、雄实验组根田鼠在静止潜伏期、静止时间和频次上与对照组相比均无显著差异。研究证实,该剂量的TBT会导致根田鼠出现轻度焦虑,尤其是雌性根田鼠,但环境浓度的TBT不会导致根田鼠抑郁。 相似文献
16.
目的：比较甘肃产柴胡不同炮制品中柴胡皂苷a的含量及其对小鼠的抗抑郁作用。方法：采用HPLC测定甘肃产柴胡不同炮制品中柴胡皂苷a含量,并通过自主活动、悬尾和强迫游泳实验及脑内5-HT及NE含量的测定,比较柴胡不同炮制品对行为绝望抑郁模型小鼠的影响。结果：甘肃产柴胡不同炮制品中柴胡皂苷a的含量以酒柴胡含量最高,鳖血柴胡次之。不同炮制品均能缩短两种行为绝望模型小鼠的不动时间,以鳖血柴胡及醋柴胡效果最明显;不同炮制品均可提高小鼠脑内5-HT含量,以鳖血柴胡效果最显著,具有显著性差异。结论：炮制可使甘肃产柴胡皂苷a含量发生变化,并改善小鼠的绝望行为,增加脑内5-HT含量而显示抗抑郁作用,有良好的开发前景。 相似文献
17.
Nakahara K Fukui K Murakami N 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(10):1297-1300
To investigate which brain regions are involved in the anticipatory activity in rats restricted feeding for 2 hr, we examined c-Fos expression before and after feeding. Only the thalamic paraventricular nucleus (tPVN) showed c-Fos expression before feeding than after feeding. After the anticipatory locomotor activity rhythm was established, lesioning the tPVN attenuated this rhythm, but not the light-dark entrained rhythm. The anticipatory increase of blood corticosterone levels was not established in long-term tPVN-lesioned rats. These results suggest that the tPVN is involved in the expression of anticipatory reactions under a food-restricted regimen. 相似文献
18.
Kwon YB Yang IS Kang KS Han HJ Lee YS Lee JH 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2000,62(2):141-146
The mechanisms of ischemic neuronal death have been focused on glutamate receptor activation and subsequent elevation of intracellular Ca2+ concentration. The purpose of this study was to evaluate the effects of dizocilpine, an NMDA receptor antagonist, pretreatment on Fos expression and parvalbumin (PV, calcium binding protein) immunoreactivity in the hippocampus of the mongolian gerbil after global ischemic insults. The number of PV-immunoreactive (PV-ir) neurons in CA1 were significantly decreased from 1 day after cerebral ischemia, while dizocilpine pretreatment completely suppressed the loss of PV-ir neurons in CA1. Dizocilpine pretreatment also protected the structural loss of microtubule-associated protein 2 immunoreactivity in CA1 after ischemic insults. In addition, dizocilpine pretreatment increased Fos expression in both hippocampal CA3 and CA4 after 3 hr ischemic reperfusion as compared to that of the saline pretreated group. Subsequently, the Fos-defined cellular activity of PV-ir neurons was slightly increased by dizocilpine pretreatment in the hippocampal area. This study demonstrated that NMDA receptor mediated calcium influx was associated with the loss of PV-ir neurons in CA1 hippocampal region, and that dizocilpine pretreatment increased Fos expression and the neuronal activity of PV-ir neurons in the non-vulnerable region of hippocampus after cerebral ischemia. Based on this data, we conclude that the protective effect of dizocilpine may be induced by the regulation of calcium overload, or by the upregulation of a neuroregenerative initiator such as Fos protein. 相似文献
19.
为研究小型猪专用复合麻醉剂（XFM）及其特异性颉颃剂交互应用对大鼠不同脑区iNOS mRNA转录的影响,将48只SD大鼠随机分为生理盐水对照组（C）和XFM与颉颃剂交互作用组（MJ）,MJ组分为早期交互（MJ1、MJ2）和晚期交互（MJ3、MJ4）2个亚组。各组大鼠到达预定时间点后分别采取脑组织,应用实时荧光定量PCR技术检测各组织中iNOS mRNA表达量。结果显示,XFM及其特异性颉颃剂交互应用时,大脑、小脑、海马、脑干和丘脑中iNOS mRNA转录均受到显著抑制（P〈0.01）,虽能逐渐回升,但在试验选取时间点内只有小脑与海马中iNOS mRNA转录恢复正常。结果表明,XFM及其特异性颉颃剂在交互作用时能够显著抑制中枢神经系统中iNOS mRNA的转录,部分脑区可以完全恢复,这可能与XFM及其特异性颉颃剂交互作用机制有关。 相似文献