脾虚证Ca~(2+)/CaM信号系统的实验研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
脾为后天之本,气血生化之源,在生命活动过程中占有重要地位。长期以来,
    脾虚证一直是人们研究的热点。尤其近年来,中医证候动物模型研究的广泛开展,
    加之分子生物学的兴起,为更深入探讨“脾虚”的本质奠定了理论基础。所以,我
    们把“脾虚证Ca~(2+)/CaM信号系统的实验研究”纳入研究范围,立其为题。
     目 的
     寻求脾虚失运,化源亏乏,同空肠平滑肌细胞内Ca~(2+)/CaM信号系统的内在联
    系。继而从胃肠动力学角度,对“脾主运化”的实质以及“脾虚失运”的发生机制
    作出一个分子水平的诠释,并为阐明四君子汤的作用机理提供实验资料。
     材料与方法
     1、脾虚模型复制
     将wistar大鼠按性别、体重随机分成3组,每组10只。①模型组:破气苦降
    加饥饱失常法,即每日灌饲小承气汤煎剂,隔日半量进食;②正常对照组:常规饲
    养,以等量生理盐水代替药物;③复健组:每日灌饲四君子汤煎剂,1~2h后,灌
    饲小承气汤煎剂,余同模型组。共15天。
     2、空肠平滑肌细胞悬液制备
     将大鼠断头处死,在十二指肠与空肠交界处下1cm处剪取4cm长的肠组织,
    剖开剥去浆膜与粘膜,洗净,剪碎,装入三角烧瓶内,加10ml消化液,通入100%
    氧气,30℃,消化10min;共2次。消化毕,1800r/min离心5min,弃上清,加
    HEPES-Ringer缓冲液洗涤2次,弃上清,再加入HEPES-Ringer缓冲液10ml,通
    入氧气,30℃,振荡20min;而后用尼龙网(500μm)过筛,充氧气。
     3、空肠平滑肌细胞内[Ca~(2+)]i测定
     荧光法
    
    
     一
     取细胞悬液Zml,1800r/min离心 smin,用 Hanks液洗涤 2次,加 IMDM培养
     液 Zml,振荡后加 10 ul含 Fura-2/AM(终浓度为 5 "in) 的 DMSO溶液;37’C水浴
     摇床中经 Fura-二/AM负载 60min。弃上清,加 Hanks液洗 2次,1800r/min离心
     smin。弃上清,加 IMDM培养液Zml,测定前将样品 37OC孵育2~3 min,在比色
     杯内放入磁棒以防止细胞沉淀。最后用F3000荧光光度计测定荧光强度,其中激
     发波长为 340urn,发射波长为 500urn,反应时间 2 min。结果以下式算出:
     [Ca’”二=224 X(F-F min)/(Fmax-F)
     式中,F为静息荧光值,F min为加 EGTA后的荧光值,Fmax为加 tritonx.100
     后的荧光值。
     4、空肠平滑肌细胞内CaM活性测定
     磷酸H酯酶(PDE)法
     山制备PDE 新鲜小牛脑除去小脑、被膜、血管等,取150g于1000ml缓冲
     液中匀浆,20000 X g4℃离心lh,上清过DEAE6ephadex-A50柱,NaCI线型梯度
     洗脱,收集第二个活性峰处酶液,透析后,上DEAE一纤维素DE52柱,NaCI线
     型梯度洗脱,收集活性峰处酶液,透析后分装,80 t保存。
     (2)P*E活性检测①酶促反应过程:②孔雀石绿定磷法测定无机磷:绘制
     磷标准曲线,未知样品磷摩尔数可以从曲线上查得。按下式计算PDE 活性(V
     molpi.min):
     测定管磷含量(ug)一对照管磷含量(ug)
     — —XZ
     30.97x30xPDE(mg)
     m标准 CaM的制备及其标准曲线制作①取新鲜小牛脑 1009,如*)处理干
     净,加入缓冲液,高速匀浆。浆液搅拌 lh后离心,保留上清。②将离心上清用 6mol/L
     醋酸调PH为4.3,10min后加硫酸镣至饱和度为50%,PH不变。放置lh后离
     心,弃去上清。加入 200ml缓冲液,用 lmol/L Tris调 PH至 7.5,离心,保留上
    -“清。③将离心上清过用缓冲液平衡的DEAE一纤维素DE52柱,并进行梯度洗脱,
     测各管 OD。s沪合并第 2个蛋白洗脱峰,同上透析,浓缩便得纯化 CaM。将其以 0.l%
     BSA配成浓度为0.05%,测其对PDE的激活作用。④绘制CaM激活PDE标准曲
     线
     (4)样品中 CaM含量测定 取 0.sml 细胞悬液在电磁搅拌器上磨 30s,4 oC
     1300r/min 离心30nin,上清于100℃水中煮Zmin,冷却后11300r/min4℃离心
     8
    
     一
     10min,上清用标难曲线制作法测定CaM 含量。绘出激活曲线,选择灵敏点
     (OD660)查出待测样品中CaM活性。
     5、统计学处理:采用t检验。
     结果
     1、脾虚动物模型塑造
     模型组自第3天起出现泄泻体重下降。此后至造模结束,渐现便搪加重,倦
     乏拱背,毛乱乏泽,纳少等脾虚症状,肛温下降不显(P>0.05);复健组偶见便
     搪,毛略欠泽,体重缓慢增加(P
The spleen provides the materiel basis of the acquired constitution, is the source of
     growth and development, and occupies an important position in the course of life activity. For
     a long time, spleen-deficiency syndrome has been a hot subject people have been studying.
     Especially in recent years, the extensive development of the studies for animal models
     showing syndrome of TCM and the upsurge of molecular biology have laid a theoretical
     foundation for further probe into the essence of nsufficiency of the spleen?.Therefore, the
     experimental research on the signal system, Ca2~+/Cam, of spleen-deficiency syndrome is
     brought into the range of research and has been established as research subject.
    
    
     Purposes
     The inner link of dysfunction of the spleen in transport and insufficient nutrient essence
     caused-by spleen-deficieney with the signal system, Ca>ICaM in jejuna snaoolh muscle cells
     is sought for. Then, from the angle of gastrointestinal dynamics, annotations at the molecular
     level are made both on the essence of that the spleen has the function to transport and
     transform nutrients and on the producing mechanism of dysfunction of the spleen due to its
     deficiency. And the experimental materials are provided in order to clarify the mechanism of
     action of Sijunzi Tang.
    
    
     Materials and methods
     1. Building of Animal Model of Deficiency of Spleen-energy.
     30 wistar rats, both male and female, were randomly denied into three groups. The rats
     in the control group were fed normally and pleased with normal saline every day. While the
     rats in the model group were fed with half full and perfuse with Xiaochengqi Tang every day.
     The rats in the third group were perfused with Sijunzi Tang first, and then were given the
    
    
     2
    
    
    
     Xiaochengqi Tang one or two hours later. The period of building animal model is about 15
     days.
    
     2. Preparation of Jejunal Smooth Muscle Cells
    
     The rats were killed with decapitation. The jejunal tissues lying 1cm distal to the
     duodero jejunalis junction were obtained. After the serosa and mucous layer were stripped,
     the tissues were cut into pieces and were kept in a container with I Oml of digestive liquid.
     They were digested for 10 minutes under the adequate oxygen and at the constant temperature
     of 3000 .After that, the tissues were recovered by centrifugation (1 800r/min, 5mm) and
     washed with buffer HEPES-Ringer twice. After agitation for 20minites at the constant
     temperature of 30C. The jejunal smooth muscle cells were obtained through a nylon Sieae
     (500~.m).
    
     3. Assay of rCa2I in Jejunal Smooch Musele Cells
    
     Fluorescerce Method Take 2ml of cell suspension, centrifugate it for 5mm at the
     speed of 1 800r/min , add 2m1 of the culture solution , IMDM . After agitation, add 1 Oul of
     DMSD solution containing Fura-2/AM (the final concentration is 5uM). This solution is
     loaded for 60mm in water bath cradle at the temperature of 3700. Throw the upper
     supernatant liquid. Then wash it twice with Hanks solution, centrifugate it for 5mm at the
     speed of 1 800r/min, throw the upper supematant liquid again, add 2m1 of culture solution.
     IIvI7DM. Before the assay. incubate the sample for 2 to 3mm at the temperature oL370C. Then
     put a magnetic rod in a color comparison tube to avoid cell preipitation. At last assay the
     fluorescein intensity with F-3 000 fluorophotometer. In its assay, excitation wave length is
     340nm, emission wave length is SOOnm. the time of
引文
[1] 马伟丰,等.脾虚患者胃形态和运动功能的超声图观察.浙江中医杂志.1991;26 (4):184
    [2] 李开明,马吉庆.实验性脾虚时葡萄糖转运电位的变化及其机理的初步探讨.辽宁中医杂志.1984;(3):34
    [3] 钟济秀.脾虚模型大鼠血清脂肪酸的组成和脂质的初步分析.实用中西获医结合杂志.1993;6 (1):38
    [4] 马建伟,王旭.脾虚证与胃肠激素关系的研究概况.中国中医基础医学杂志.1996;2 (4):61
    [5] 陈小野,等.大鼠长期造模的实验研究.中国中医基础医学杂志.1995;2 (2):37
    [6] 易崇勤,等.四君子汤对脾虚大鼠胃粘模细胞酶组织化学及血浆胃肠激素的影响.北京中医药大学学报.1997;20 (6):31
    [7] 金敬善.脾虚证动物模型的实验研究进展.中国中西医结合脾胃杂志.1999;7 (2):65
    [8] 方福德,等.现代医学实验操作全书.1版.北京医科大学中国协和医科大学联合出版社.北京.1995;136-138
    [9] 高红,冯亦璞.用Fura-2测定突触体游离Ca~(2+)浓度及Ca~(2+)通道激活剂和阻断剂的影响.药学学报.1993;(28):404
    [10] 丁文勇,等.钙调素的环核苷酸磷酸二酯酶检测法.大连医科大学学报.1999;21 (1):3
    [11] 方福德,等.现代医学实验操作全书.1版.北京医科大学中国协和医科大学联合出版社.北京.1995;232-238
    [12] 沈自尹.中医虚证辩证参考标准.中西医结合杂志.1983;3 (2):17。
    [13] 李露言,等.钙拮抗剂治疗高血压患者钙调素水平的变化.中国特环杂志.1998;13 (6):328
    [14] 夏天,等.四君子汤健脾益气作用的研究进展.新消化病学杂志.1994;2 (1):43
    [15] 熊照阳.大黄的实验研究和临床应用进展.浙江中医杂志.1981;(7):331
    
    
    [16] 陈琼华.大黄的实验研究和临床应用.新医药学杂志.1974;(5):34
    [17] 梅全喜,毕焕新主编.现代中医药药理手册.1版.中国中医药出版社.北京.1998;213
    [18] 谢鸣主编.中医方剂现代研究(上).1版.学苑出版社.北京.1997;138
    [19] 尤胜义,等.中国中西医结合杂志.1994;(9):522
    [20] 杨文修,等.大承气汤和大黄对豚鼠结肠带平滑肌细胞电活动的影响.中国中西医结合杂志.1993;13 (1):33
    [21] 赵荣莱.脾虚研究中若干问题的探讨.中医药学报.1991;(5):15
    [22] 王兆清,等.“脾”与胃酸分泌功能的初探——附341例分析.中西医结合杂志.1984;4 (1):36
    [23] 金敬善,等.血清中胃泌素水平与脾虚证关系.中西医结合杂志.1982;2 (1):25
    [24] 任平,等.脾虚泄泻与血浆及肠组织中胃动素的关系.第四军医大学学报.1991;12 (5):391
    [25] 任平,等.对脾虚泄泻患者胃动素及前列腺素的初探.中国医药学报.1993;8 (1):22
    [26] 杨雨生,等.脾虚证的研究进展.中医药研究.1990;(3):42
    [27] 徐重明,夏天.论“脾虚”证动物模型建立的方法和思路.医学与哲学.1992;(5):46
    [28] 马建伟,等.大鼠脾虚模型血浆及胃肠组织中生长抑素含量的实验研究.辽宁中医杂志.1992;(8):42
    [29] 高墀岩,等.脾虚病人某些检查指标的变化.中医杂志.1980;21 (9):27
    [30] 金敬善,等.老年人和脾虚患者消化系统功能的观察.中西医结合杂志.1984;4 (3):164
    [31] 冯庚玮,等.脾阳虚患者胆囊收缩功能的观察.天津中医.1980;(2):19
    [32] Johnos LR. Gastrointeinal hormones and peptides; somtostatin. phySiology of the Gastroinestinal Tract. 1980; Vol 1:1029
    
    
    [33] Arnold, et al. Somatostatin and the gastrointestinatract. Clin Gastroenterol. 1980; 9:8
    [34] 易崇勤,等.四君子汤调整小鼠运化功能紊乱的实验研究.中国中西医结合杂志.1997;17 (1):42
    [35] 李仪奎,等.中药药理学.1版.中国中医药出版社.北京.1992;100。
    [36] 梁卫江,等.脾虚证的消化吸收功能研究进展.中国中西医结合脾胃杂志.1999;7 (3):191
    [37] 周吕,等.胃肠动力学.基础与临床.1999;1:542
    [38] Lee, JS. Contraction of villi and transport in dog jejunal mucosa in vitro. Jphysiol. 1971; 21: 488-495
    [39] Womack W A, et al. Quantitative of villious motility. Am Jphysiol. 1987; 252: G250-G256
    [40] 李在琉.胃肠生理学.1版.科学出版社.北京.1991:363-3798
    [41] 关家驹.“脾”与胰腺外分泌功能及小肠吸收功能关系的探讨.贵阳中医学院学报.1994;16 (3):61
    [42] 张熙.脑血管病辩证分型与血清脂蛋白及胆固醇水平的研究.实用中西医结合杂志.1995;8 (7):392
    [43] 戴小华.脾虚患者血清游离氨基酸的变化.中西医结合杂志.1994;14 (7):403
    [44] 毛炯.30例脾阴虚证患者的中医临床观察和血浆蛋白测定.浙江中医杂志.1990;25 (8):363
    [45] 周吕,等.胃肠动力学:基础与临床.1版.北京医科大学中国协合医科大学联合出版社.北京.1999;1:548
    [46] 周吕.肠神经系统脑肠肽.中华消化杂志.1版.北京医科大学中国协合医科大学联合出版社.北京.1996;(16):287-289
    [47] 王玲,等.脑肠肽对胃肠平滑肌细胞动力调节的信号转导机制.基础医学与临床.1999;19 (2):26
    [48] 周吕,等.胃肠动力学.基础与临床.1999;1:212-213
    [49] 卢中举,等.平滑肌收缩调节的信号转导.生理科学进展.1997;28 (4):337
    [50] He J, Stephen NL. Calcium and smooth muscle contraction. Mol cell Biochem. 1994; 135: 1-9
    
    
    [51] 孙大业,等.细胞信号转导.科学出版社.1998;(2):92-93
    [52] 李为民,等.Ca~(2+)—CaM系统在调节血管平滑肌收缩中的地位与作用.国外医学临床生物与检验学分册.1994;15 (5):197
    [53] Hiromichi Y, et al. Calcium, Calmodulin, and Anesthesiology. Gen pharmacol. 1990; 21:287
    [54] Depoortere I, Peeters TL. Smooth muscle Calponin. Regul pept. 1995; 55. 227
    [55] 任平,等.四君子汤对脾虚大鼠胃动素及川芎嗪药物动力学时征的影响.中国中西医结合杂志.1997;17 (1):45。
    [56] 赵建明,等.脾虚证红细胞膜流动性改变的临床研究.中国中西医结合杂志.1996;16 (6):350。
    [57] 王淑兰.脾胃学说与临床.1版.人民卫生出版社.北京.1990;271-272。
    [58] 李庆明,等.脾气虚证壁细胞线粒体.G细胞分泌颗粒与血清胃泌素.胃粘膜.SOD.MDA的变化.中山医科大学学报.1995;16 (1):45
    [59] 谢印芝,等.急性低氧对大鼠脑组织钙调素含量及其依赖性蛋白激酶Ⅱ活性的影响.中国应用生理学杂志.1994;10 (1):38
    [60] Means AR, Van Berkum, Baqchi I, et al.Reqatatory functions of Calmodulin. Pharmac Ter. 1991; 50:255
    [61] 孙大业,等.细胞信号转导.科学出版社.1998;(2):112
    [62] Walsh MP. Calmodulin and the regulation of smooth muscle contraction. Mol Cell Biochem. 1994; 135:21-41
    [63] 孙大业,等.细胞信号转导.1版.科学出版社.北京.1998;(2):119
    [64] 孙大业,等.细胞信号转导.1版.科学出版社.北京.1998;(2):116
    [65] 孙伟,等.高血压大鼠不同血管平滑肌肌球蛋白磷酸化和脱磷酸化酶的变化.生理学报.1998;50 (1):82

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700