外源性表皮生长因子对大鼠坐骨神经损伤后感觉神经元超微结构变化的影响

目的应用外源性表皮生长因子(EGF)观察神经损伤后对背根神经节感觉神经元超微结构改变的影响。方法雄性SD大鼠18只,体重180～220g,随机分成对照组和EGF组,选用大鼠坐骨神经切断近端双重结扎的动物实验模型。对照组于神经结扎近端注入生理盐水5μl,EGF组注入hEGF5μl(10μgEGF溶于5μl生理盐水中)分别于手术后7、14、28d用4%多聚甲醛灌注后取腰5背根神经节观察感觉神经元超微结构的改变。结果腰5背根神经节超微结构均发生改变,随着时间的推移,对照组内感觉神经元细胞核逐渐缩小,核质淡,稀疏,线粒体肿胀,嵴消失,基质丢失,卫星细胞从与神经元紧密相连到与之分离。EGF组神经元仅出现线粒体轻度的变性改变,其余结构基本正常。结论EGF对神经损伤后感觉神经元有一定的保护作用     

银杏叶提取物对坐骨神经损伤后运动神经元超微结构的影响

目的　研究银杏叶提取物 (EGb761)对大鼠坐骨神经损伤后脊髓前角运动细胞超微结构的影响。方法　SD大鼠 18只 ,随机分成两组 ,银杏叶提取物 (EGb761)组和生理盐水 (SAL)组。切断大鼠坐骨神经并将神经远近端分别反折结扎 ,术后经腹腔分别注射EGb761( 10 0mg (kg·d)和同体积的SAL ,于 2、4、6周取材L4～ 6 节段脊髓 ,电镜下观察前角大型运动神经元细胞核及细胞器的超微结构形态变化 ,用体视学方法计算每张照片线粒体、内质网及溶酶体面积密度变化。结果　两组脊髓前角大型运动神经元超微结构均发生损伤性改变 ,实验组超微结构形态以及线粒体、内质网及溶酶体体积密度变化程度明显好于对照组。结论　银杏叶提取物能减轻大鼠坐骨神经损伤后前角运动神经元超微结构的损伤性改变 ,对运动神经元有一定的保护作用     

坐骨神经压迫性损伤大鼠背根神经节磷酸化p38MAPK表达的变化

目的:观察背根神经节(DRG)磷酸化的p38丝裂原活化蛋白激酶(p -p38MAPK)在大鼠坐骨神经慢性压迫性损伤(CCI)后表达的变化,探讨慢性神经痛的发生机制。方法:2 4只雄性SD大鼠随机分成空白对照组(Naive组)、假手术组(Sham组)、坐骨神经结扎后7d组和1 4d组(CCI7d和CCI1 4d组) ,分别在各自的时间点灌注取材L4- 5背根神经节,用免疫组织化学方法观察磷酸化p38MAPK表达的变化。结果:坐骨神经结扎组背根神经节磷酸化的p38MAPK免疫阳性神经元数和染色深度均明显增加,与假手术组或空白对照组相比,差异具有显著性(P <0 .0 1 )。结论:坐骨神经损伤后背根神经节p38MAPK的激活与神经性疼痛的病理过程密切相关。     

大鼠背根神经节细胞一氧化氮合酶与乙酰胆碱酯酶共存的组化研究

用还原型尼克酰胺腺嘌呤二核苷磷酸黄递酶反应,结合乙酰胆碱酯酶组化技术,观察了SD大鼠背根神经节。发现背根神经节内存在有三种不同染色的神经元。(1)单染AChE阳性神经元;(2)NADPH-d与AChE双染色神经元;(3)少数两种酶反应均为阴性神经元。其中双染神经元胞质内含有蓝色和棕色两种颗粒。这证明背根节内大多数神经元是NADPH-d与AChE共存。提示背根节内存在的NADBH-d与AChE双染的神经元可能与痛感知传递有关。     

嗅鞘细胞移植对脊髓前角神经元保护作用的实验研究

目的 观察嗅鞘细胞(OECs)脊髓内移植对坐骨神经损伤后脊髓前角运动神经元的作用.方法 将培养、纯化OECs采用倒置相差显微镜、细胞免疫组织化学染色观察并计算纯度.48只大鼠坐骨神经夹伤后随机分为OECs实验组与生理盐水组.通过尼氏染色计数并计算运动神经元的存活百分率,观察神经元的超微结构.结果 神经生长因子受体p75...     

大鼠坐骨神经慢性压迫性损伤后脊髓背角感觉神经元超微形态学变化

目的观察大鼠坐骨神经慢性压迫损伤后脊髓背角浅层神经元超微形态变化。方法成年雄性SD大鼠20只,随机分为jE常组和手术组。手术组结扎大鼠左侧坐骨神经建立坐骨神经慢性压迫性损伤fCCI）模型,存术后3、7、14d取与坐骨神经相应的腰4—6节段脊髓,透射电镜观察左侧脊髓背角浅层神经元超微结构并摄片,光镜下苏术素伊红染色对大鼠腰4—6脊髓背角两侧感觉神经元计数。结果坐骨神经损伤后,光镜下损伤侧脊髓背角感觉神经元数量较健侧昆著减少（P〈O．05）,两周时细胞死亡率为23％;电镜下CCI7d和14d绀腰4～6节段脊髓左侧背角浅层神经元出现多种形态变化,以细胞凋亡为主？结论坐骨神经损伤后腰4—6节段脊髓背角神经元tP,现丢失,超微形态上呈现多样性,以细胞凋亡为主。     

运动神经端侧缝合后再生及趋化性的实验研究

目的探讨运动神经端侧缝合后神经再生及其趋化性问题。方法将20只健康雌性SD大鼠分为神经端侧缝合组(端侧缝合组)和对照组,各10只。端侧缝合组切断大鼠胸前神经分支,将尺神经后内侧方外膜开窗,将胸前神经分支和开窗的尺神经外膜做端侧缝合;对照组仅显露胸前神经分支和尺神经。两组1年后均采用乙酰胆碱酯酶染色和Fluoro-Gold荧光逆行示踪技术,观察和计数胸前神经分支纤维和大鼠脊髓C5-T1前角和背根神经节神经元。结果端侧缝合组有髓神经纤维数、轴突酶染阳性的运动神经纤维数、运动纤维比例、脊髓前角神经元数目、背根神经节感觉神经元数目、神经元总数和运动神经元比例与正常组比较,差异均有统计学意义(<0.01或<0.05)。结论运动神经端侧缝合后神经侧方出芽对特定靶器官的趋化性不明显。     

外源性表皮生长因子对大鼠坐骨神经损伤后感觉神经元 …

目的 应用外源性表皮生长因子（ＥＧＦ）观察神经损伤后对背根神经节感觉神经元超微结构改变的影响。方法 雄性ＳＤ大鼠１８只,体重１８０～２２０ｇ,随机分成对照组和ＥＧＦ组,选用大鼠坐骨神经切断近端双重结扎的动物实验模型。对照组于神经结扎近端注入生理盐水５ｕｌ,ＥＧＦ组注入ｈＥＧＦ５ｕｌ（１０ｕｇＥＣＦ溶于５ｕｌ生量盐水中）分别于手术后７、１４、２８ｄ用４％多聚甲醛灌注后取腰５背根神经节观察感觉神经元细     

EGCG对阿米卡星诱导大鼠螺旋神经元凋亡的保护作用

目的 探讨表没食子儿茶素没食子酸酯(EGCG).对阿米卡星诱导的大鼠耳蜗螺旋神经元凋亡是否具有保护作用.方法 设生理盐水对照组、阿米卡星(450 mg·kg-1·d-1共14 d)损伤组和阿米卡星加EGCG(50 mg/kg·kg-1·d-1共14 d)保护组.各组动物均深度麻醉后半身灌注固定处死,取右侧耳蜗标本固定、脱钙、石蜡轴位包埋、轴位切片,近中轴位切片行末端脱氧核苷酸转移酶介导的dUTP原位切口末端标记(TUNEL)免疫组化染色,光学显微镜下检测耳蜗螺旋神经节细胞表达情况、并通过切片图像分析进行半定量处理比较.结果 正常组螺旋神经元胞浆及细胞核基本上均不着色,损伤组部分螺旋神经元胞核着色,保护组亦少部分螺旋神经元胞核着色,图像分析结果显示损伤组与对照组、损伤组与保护组之间的染色阳性率差异有统计学意义(P＜0.01).结论 EGCG可以减轻阿米卡星诱导大鼠耳蜗螺旋神经元凋亡.     

坐骨神经压迫性损伤大鼠背根神经节P2X3受体表达的变化

目的观察背根神经节P2X_3受体在大鼠坐骨神经慢性压迫性损伤(CCI)后表达的变化,探讨慢性神经痛的发生机制。方法24只雄性SD大鼠随机分成假手术组(S组)、坐骨神经结扎组(CCI组),各组分别均分为D7组和D14组,分别在各自的时间点灌注取材L_(4～5)背根神经节,用免疫组织化学方法观察P2X_3受体表达的变化。结果CCI组术侧背根神经节P2X_3阳性神经元数目明显增加,与S组相比,差异有统计学意义(P<0.05);非术侧与S组相比则无统计学差异(P>0.05)。结论坐骨神经损伤后背根神经节P2X_3受体的激活与神经性疼痛的病理过程密切相关。     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.