黄芩苷通过抑制小胶质细胞活化缓解吗啡耐受

探讨黄芩苷对小胶质细胞活化和慢性耐受的影响并考察其作用机制。应用RT-PCR和ELISA法考察细胞释放炎症因子IL-1β和TNF-α的变化,Western blot法检测细胞中p-p38MAPK和IBA-1蛋白表达变化,热板法检测慢性吗啡耐受小鼠热板痛阈变化。实验结果发现,黄芩苷(1,10,100 μmol/L)剂量依赖性地抑制吗啡活化的BV2细胞释放IL-1β和TNF-α,100 μmol/L黄芩苷明显降低p-p38MAPK水平。鞘内注射黄芩苷(20,40,60 μg)可剂量依赖性地改善慢性吗啡耐受,鞘内注射黄芩苷60 μg可模拟出小胶质细胞抑制剂米诺环素的作用并能显著抑制慢性吗啡耐受小鼠脊髓p-p38MAPK以及IBA-1的表达。本研究表明,黄芩苷可通过抑制p38MAPK信号通路抑制吗啡引起的小胶质细胞活化,进而显著改善慢性吗啡耐受。     

鞘内注射右美托咪定对大鼠吗啡耐受及脊髓炎性反应的影响

目的 探讨鞘内注射右美托咪定对大鼠吗啡耐受及脊髓炎性反应的影响.方法 采用随机数字表法将33只体质量180～200 g雄性SD大鼠,分为3组(n=11):对照组(NS组)、吗啡组(M组)、右美托咪定+吗啡组(Dex组).NS组鞘内注射无菌生理盐水10μL,1次/d,共7 d;M组鞘内注射吗啡15 μg,1次/d,共7 d;Dex组鞘内注射15 μg吗啡和1.5 μg右美托咪定,1次/天,共7d.于吗啡鞘内注射第1、3、5、7天给药前和给药后30 min测定大鼠的热痛阈.Western blot法检测脊髓中小胶质细胞标记物Iba-1、白细胞介素1β(IL-1β)、肿瘤坏死因子α(TNF-α)和磷酸化p38MAPK(p-p38)的蛋白表达水平.免疫组织化学法检测脊髓Iba-1阳性细胞密度.结果 随着吗啡鞘内注射次数增加,M组和Dex组热水甩尾实验最大镇痛效应百分比(MPE)逐渐下降(P＜0.05).与NS组比较,M组甩尾实验MPE在吗啡注射的第1、3、5、7天较高(P＜0.05);与M组比较,Dex组甩尾实验MPE于吗啡注射的第3、5、7天较高(P＜0.05).与NS组比较,M组大鼠脊髓Iba-1阳性细胞密度及Iba-1、IL-1β、TNF-α和p-p38蛋白表达水平明显升高(P＜0.05);与M组比较,Dex组大鼠脊髓Iba-1阳性细胞密度及Iba-1、IL-1β、TNF-α和p-p38蛋白表达水平明显降低(P＜0.05).结论 鞘内注射右美托咪定可缓解吗啡耐受的形成,其机制可能与抑制脊髓小胶质细胞介导的炎性反应相关.     

宁泌泰胶囊改善慢性前列腺炎引发疼痛的研究

  目的  研究宁泌泰(NMT)胶囊改善慢性前列腺炎引发疼痛的作用及潜在机制。  方法  将50只雄性C57BL/6小鼠随机分为空白组、模型组、NMT低剂量组、NMT中剂量组、NMT高剂量组, 每组10只。造模后低、中、高剂量组分别灌胃给药6、12、18 g·kg-1NMT溶液, 空白组、模型组灌胃等量的生理盐水。采用热辐射甩尾法和热板法进行行为学检测; 免疫组化法检测各组前列腺神经胶质纤维酸性蛋白(GFAP)以及肿瘤坏死因子-α(TNF-α)的含量; qPCR法检测前列腺组织中TNF-α、IL-6和IL-1β mRNA的相对表达量; ELISA法检测前列腺组织中IL-6、IL-1β、TNF-α表达水平; Western blot法检测p-ERK/ERK、p-JNK/JNK、p-p38MAPK/p38MAPK蛋白表达水平。  结果  与模型组比较, NMT低、中、高3个剂量组小鼠的热板法和甩尾法所测定痛阈值均显著提高(P < 0.01,P < 0.001), 前列腺组织中GFAP和TNF-α表达量明显降低(P < 0.05),TNF-α、IL-6和IL-1β的mRNA水平均显著降低(P < 0.05,P < 0.01,P < 0.001), p-ERK/ERK、p-JNK/JNK、p-p38MAPK/p38MAPK蛋白水平显著降低(P < 0.05,P < 0.01)。  结论  NMT胶囊可能通过抑制炎性介质的释放和星形胶质细胞的激活, 发挥对慢性前列腺炎引起小鼠疼痛的抑制作用。      

p38丝裂原活化蛋白激酶在小鼠肠缺血再灌注肺损伤中的作用

目的探讨p38丝裂原活化蛋白激酶(p38MAPK)在小鼠肠缺血再灌注肺损伤的作用。方法10周龄健康雄性C57BL/6小鼠随机分为假手术组、缺血再灌注组和缺血再灌注+SB239063处理组(SB239063组),SB239063组于术前1h腹腔注入p38MAPK抑制剂SB239063(3mg/kg),另两组注入等量生理盐水。采用夹闭C57BL/6小鼠肠系膜前动脉45min后再灌注6h的方法造成肠缺血再灌注损伤模型。处死小鼠取肺标本,蛋白质印迹法检测肺组织磷酸化p38MAPK蛋白水平,RT-PCR检测肺组织TNF-α和IL-1βmRNA表达,H-E染色观察肺组织病理学改变。结果肠缺血再灌注导致明显肺损伤,肺组织p38MAPK活化明显增加,TNF-α和IL-1β基因表达水平明显升高(与假手术组比较P<0.01);SB239063可抑制肺组织p38MAPK活化,减轻小肠缺血再灌注引起的肺损伤,并下调肺组织TNF-α和IL-1βmRNA表达(与缺血再灌注组比较P<0.05)。结论p38MAPK在小鼠肠缺血再灌注肺损伤中起重要作用,抑制p38MAPK活化可减轻肠缺血再灌注肺损伤。     

祛风通络方对高糖诱导人肾小球系膜细胞炎性反应的影响机制研究

目的 观察祛风通络方对高糖诱导人肾小球系膜细胞炎性反应的影响.方法 体外培养人肾小球系膜细胞株并采用25.0 mmol/L高糖DMEM诱导其增殖,设立正常组、模型组、抑制剂组、祛风通络组,ELISA法测定IL-1β、IL-6、TNF-α、TGF-β1的表达水平,real-time PCR法测定白细胞介素-1β(IL-1β)、IL-6、肿瘤坏死因子-α(TNF-α)、转化生长因子-β1(TGF-β1)、细胞间黏附分子-1(ICAM-1)、单核细胞趋化蛋白-1(MCP-1)、相对分子量为38×103的促分裂素原活化蛋白激酶(p38 MAPK)mRNA的表达,Western blot法检测ICAM-1、MCP-1、p38 MAPK的表达.结果 与正常组比较,模型组IL-1β、IL-6、TNF-α、TGF-β1水平增加(P<0.05),IL-1β、IL-6、TNF-α、TGF-β1、ICAM-1、MCP-1、p38 MAPK mRNA相对表达水平升高(P<0.05),p38 MAPK、ICAM-1、MCP-1的相对表达水平升高(P<0.05);与模型组比较,祛风通络组IL-1β、IL-6、TNF-α、TGF-β1水平下降(P<0.05),IL-1β、TNF-α、TGF-β1、ICAM-1、MCP-1、p38 MAPK mRNA相对表达水平降低(P<0.05),MCP-1的相对表达水平降低(P<0.05).与抑制剂组比较,祛风通络组p38 MAPK、IL-1β、IL-6、TGF-β1 mRNA相对表达水平,差异有统计学意义(P<0.05)结论祛风通络方可以明显改善高糖诱导人肾小球系膜细胞的炎性反应,减少IL-1β、IL-6、TNF-α、TGF-β1、MCP-1、ICAM-1的表达,这一过程可能是通过p38 MAPK信号通路实现的.     

吗啡耐受大鼠背根神经节磷酸化p38 MAPK的表达

 【目的】 观察鞘内慢性注射吗啡是否激活背根神经节(DRG)神经元,使其p38丝裂原激活的蛋白激酶(p38 MAPK)磷酸化水平发生改变&#65377; 【方法】 通过对成年雄性SD大鼠连续7 d鞘内注射吗啡15 μg而建立吗啡耐受的动物模型,或连续7 d在吗啡注射前30 min预先鞘内注射p38 MAPK抑制剂SB203580 10 μg,用50 ℃热水甩尾法观察吗啡的镇痛效果,并用免疫组织化学法观察DRG 磷酸化p38 MAPK(p-p38 MAPK)的表达变化&#65377;【结果】 慢性鞘内注射吗啡7 d后,吗啡镇痛作用明显下降(P < 0.001),吗啡耐受形成;而SB203580预处理可明显抑制吗啡耐受的形成(P < 0.001);免疫组织化学染色显示脊髓DRG p-p38 MAPK表达明显上调(P < 0.01),且以小&#65380;中型神经元增加为主&#65377; 【结论】 鞘内慢性注射吗啡可激活脊髓DRG小型和中型神经元,使其p38 MAPK磷酸化水平增加,这可能是吗啡耐受的机制之一&#65377;     

P物质刺激下脊髓星形胶质细胞活化中磷酸化P38丝裂素活化蛋白激酶和c-fos的表达及作用

目的 观察P物质(substance P, SP)作用下,脊髓星形胶质细胞中P38丝裂素活化蛋白激酶的磷酸化(P-P38MAPK)和c-fos的表达,及P38MAPK磷酸化对炎性因子分泌的影响.方法 采用体外培养脊髓星形胶质细胞,施加SP刺激,分别采用Western blot和RT-PCR检测P38MAPK磷酸化和c-fos表达的变化,ELISA法检测SB203580阻断P38MAPK磷酸化对炎性因子TNF-α、IL-1β、NO分泌的影响.结果 在SP(10-7mol/L)刺激下,P38MAKP在15、30、45、60 min时均明显磷酸化,与对照组相比有显著性差异 (P＜0.05, P＜0.01),磷酸化高峰在45 min;SP(10-7 mol/L)作用下c-fos表达明显,30 min、1、3、6 h均显著高于对照组 (P＜0.05, P＜0.01),3 h达到高峰;SP(10-7 mol/L)刺激脊髓星形胶质细胞明显分泌炎性因子IL-1β、TNF-α和NO (P＜0.01), SB203580阻断P38MAKP信号通路后TNF-α和NO的分泌下降(P＜0.01),IL-1β的分泌在阻断前后无显著性差异(P＞0.05).结论 SP作用下脊髓星形胶质细胞中P38MAPK和 c-fos信号通路激活,P38MAPK磷酸化参与了SP作用下脊髓星形胶质细胞的活化及炎性因子的分泌,与星形胶质细胞在脊髓中枢对痛觉的调控有关.     

川芎嗪预处理对心肌缺血再灌注损伤大鼠p38MAPK和TNF-α表达的影响

目的:探讨川芎嗪预处理对心肌缺血再灌注损伤的保护作用及机制.方法:30只Wistar大鼠被随机分为3组:假手术组、缺血再灌注损伤(IR)组、川芎嗪预处理组(LI).建立大鼠心肌缺血再灌注损伤模型,应用酶联免疫吸附法,测定心肌TNF-α和IL-6水平;用免疫组化S-P法,检测p38MAPK蛋白的表达.结果:LI组与IR组比较,TNF-α、IL-6均显著降低(P＜0.01),p38MAPK蛋白阳性表达显著减弱(P＜0.01).结论:川芎嗪可降低p38MAPK的活性,抑制TNF-α和IL-6的表达而发挥心肌保护作用.     

槲皮素抑制脊髓小胶质细胞基质金属蛋白酶的表达改善术后疼痛的机制研究

考察槲皮素对足底切口诱发的术后疼痛的影响,并探讨其对脊髓小胶质细胞中基质金属蛋白酶(MMP)-9和MMP-2的抑制作用并考察其作用机制。制备小鼠足底切口术后痛模型,利用Von Frey Hairs检测小鼠机械痛阈值;利用明胶酶谱法检测槲皮素对脊髓水平MMP-9和MMP-2活力的影响;Western blot法检测小鼠脊髓小胶质细胞标记分子钙离子结合蛋白1(IBA-1)以及磷酸化p38丝裂原活化蛋白激酶(p-p38 MAPK)的变化。结果发现,给予槲皮素(20,40,80 mg/kg,ip)能够显著地抑制足底切口手术引起的机械性痛觉异常以及脊髓小胶质细胞中MMP-9和MMP-2水平的升高;并抑制术后切口引起的脊髓水平IBA-1和p-p38的表达。研究结果表明,槲皮素可能通过抑制脊髓小胶质细胞中MMP-9和MMP-2的活化而改善术后疼痛。     

丙泊酚对小胶质细胞炎症因子的影响及其机制研究

目的 探讨丙泊酚对小胶质细胞炎症因子的影响及其机制。方法 将小胶质BV-2 细胞分为对照组、丙泊酚组、脂多糖（LPS）组、LPS+ 丙泊酚组,对照组细胞加入PBS 液,丙泊酚组细胞加入丙泊酚30μmol/L,LPS 组细胞加入LPS 1μg/ml,LPS+ 丙泊酚组细胞加入丙泊酚30μmol/L+LPS 1μg/ml。采用MTT 比色实验测定细胞活性,采用酶联免疫吸附法测定细胞上清液中白细胞介素1β（IL-1β）、白细胞介素6（IL-6）、肿瘤坏死因子-α（TNF-α）水平,采用逆转录- 聚合酶链反应测定细胞p38MAPK 和TLR4mRNA 的表达,采用Western blot 检测细胞p38MAPK 和TLR4 蛋白表达量。结果 LPS 组和LPS+ 丙泊酚组小胶质细胞活性低于对照组和丙泊酚组（P <0.05）,LPS+ 丙泊酚组小胶质细胞活性高于LPS 组（P <0.05）;LPS 组和LPS+ 丙泊酚组小胶质细胞上清液中IL-1β、IL-6、TNF-α 水平高于对照组和丙泊酚组（P <0.05）,LPS+ 丙泊酚组小胶质细胞上清液中IL-1β、IL-6、TNF-α 水平低于LPS 组（P <0.05）;LPS 组和LPS+ 丙泊酚组小胶质细胞p38MAPK、TLR4 mRNA 和蛋白表达量高于对照组和丙泊酚组（P <0.05）,LPS+ 丙泊酚 组小胶质细胞p38MAPK、TLR4 mRNA 和蛋白表达量低于LPS 组（P <0.05）;丙泊酚组和对照组小胶质细胞各指标比较,差异无统计学意义（P >0.05）。结论 丙泊酚能抑制小胶质细胞过度活化和炎症反应,其机制可能与丙泊酚可下调TLR4-p38MAPK 信号通路有关。     

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.     

Development Is A High Level Inheritance for China Time-honored Brand Products

<正>As culture is the soul of a nation,the three books,"History of Chinese Philosophy,""History of Chinese Culture"and"History of Chinese Science and Technology"have demonstrated the superiority of our great Chinese culture,and its significant impact in the field of international culture.Both core value and practical value of the Chinese culture are very clear,reflected in the views of universe,nature,life,health,disease,and therapy and related considerations,concepts,and technical methods.