枸杞多糖对高温环境下力竭运动大鼠胸主动脉血管反应性及自由基代谢的影响

目的探讨枸杞多糖(LBP)对高温环境中力竭运动大鼠胸主动脉血管反应性及自由基代谢的影响。方法雄性SD大鼠30只,随机分为对照组、高温力竭运动组、高温力竭运动+LBP组(200mg.kg-1d-1),后两组大鼠分别在高温条件下进行四周游泳训练到力竭。采用离体血管环灌流技术测定大鼠胸主动脉血管环对去甲肾上腺素(NA)的反应性;检测血清中丙二醛(MDA)、超氧化物歧化酶(SOD)、乳酸(LD)、热休克蛋白70(HSP70)以及一氧化氮(NO)的变化。结果与对照组比较,高温力竭运动组胸主动脉血管环对NA的收缩反应增加(P<0.01);其血清中MDA、LD、HSP70含量升高,NO含量降低(P<0.05)。与高温力竭运动组比较,灌服LBP组大鼠能够降低NA对血管环引起的收缩幅度,其血清中SOD、NO及HSP70含量高于高温力竭运动组(P<0.01),而血清中MDA、LD的含量低于高温力竭运动组(P<0.01)。结论 LBP可减弱对NA的血管收缩反应,改善胸主动脉血管弹性,其机制可能与增强血清抗氧化酶活力,减少自由基及脂质过氧化物、提高机体血乳酸耐受力及增加HSP70的表达有关。     

止血带休克时主动脉舒缩功能与一氧化氮合酶活性的关系

探讨止血带休克 ( To S)发生过程中血管舒缩功能的改变 ,以及与血管组织一氧化氮 ( NO)产生的关系。方法　采用Rosenthal方法复制大鼠 To S模型 ,分别测定对照组和 To S组大鼠血浆中、主动脉孵育液中亚硝酸盐 ( NO- 2 )含量 ,及主动脉组织中 c GMP含量、一氧化氮合酶 ( NOS)活性 ,同时观察了主动脉血管环舒缩功能的改变。结果　 To S大鼠离体主动脉环对去甲肾上腺素的反应性降低 ;其血浆和主动脉孵育液中 NO- 2 明显增加 ;主动脉 c GMP含量增多 ;主动脉血管总 NOS活性增强 ,其中主要是诱导性 NOS( i NOS)活性增加。结论　 To S时大鼠主动脉组织中 i NOS活性增强 ,产生 NO增多 ,造成血管低反应性     

高游离脂肪酸血症对SD大鼠主动脉内皮细胞一氧化氮合酶活性及mRNA表达的影响

目的研究高游离脂肪酸(FFA)血症对大鼠血管内皮细胞一氧化氮合酶(eNOS)活性及表达的影响并探讨其可能的机制。方法雄性SD大鼠随机分成对照组和FFA组。对照组及FFA组大鼠分别经颈静脉插管输入生理盐水或20%脂肪乳 肝素6 h。输液结束后采集血清标本测定血中FFA、活性氧(ROS)、脂质过氧化产物丙二醛(MDA)、还原性谷胱甘肽(GSH)、高敏C反应蛋白(hs-CRP)以及NO水平。处死动物后取出主动脉,测定主动脉内皮细胞匀浆液中eNOS活性及eNOS mRNA水平。结果FFA组血FFA水平较对照组升高2~4倍,血清NOx水平明显降低,内皮细胞eNOS活性及mRNA水平明显低于对照组。FFA组血清ROS、MDA以及hsCRP水平明显升高,GSH水平降低。结论高FFA血症可抑制内皮细胞eNOS活性及表达,其机制可能涉及FFA所诱导的炎症反应和氧化应激。     

高游离脂肪酸血症对SD大鼠主动脉内皮细胞一氧化氮合酶活性及mRNA表达的影响

目的研究高游离脂肪酸（FFA）血症对大鼠血管内皮细胞一氧化氮合酶（eNOS）活性及表达的影响并探讨其可能的机制。方法雄性SD大鼠随机分成对照组和FFA组。对照组及FFA组大鼠分别经颈静脉插管输入生理盐水或20％脂肪乳＋肝素6h。输液结束后采集血清标本测定血中FFA、活性氧（ROS）、脂质过氧化产物丙二醛（MDA）、还原性谷胱甘肽（GSH）、高敏C反应蛋白（hs-CRP）以及NO水平。处死动物后取出主动脉，测定主动脉内皮细胞匀浆液中eNOS活性及eNOS mRNA水平。结果FFA组血FFA水平较对照组升高2～4倍，血清NOx水平明显降低，内皮细胞eNOS活性及mRNA水平明显低于对照组。FFA组血清ROS、MDA以及hsCRP水平明显升高，GSH水平降低。结论高FFA血症可抑制内皮细胞eNOS活性及表达，其机制可能涉及FFA所诱导的炎症反应和氧化应激。     

一氧化氮合酶蛋白和基因在肝肺综合征大鼠肺组织中的表达

目的　探讨一氧化氮 (NO) 在肝肺综合征 (HPS) 发生机制中的作用。方法　采用 Wistar大鼠行胆总管结扎术 (CBDL) 制备HPS动物模型, 应用免疫组化方法观察内皮型一氧化氮合酶 (eNOS) 和诱导型一氧化氮合酶(iNOS) 蛋白在肺血管的表达和分布特点, 采用RT PCR方法检测肺组织中eNOS、iNOS mRNA的表达。结果　CB- DL组肺血管eNOS染色强度较假手术组显著升高 (P<0 .01), 而 iNOS表达在两组间差异无显著性意义 (P>0 .05);CBDL组大鼠肺组织eNOS mRNA的表达较对照组增高 (P<0. 01), 两组iNOS mRNA的相对表达量差异无统计学意义; 相关分析表明, 肺组织中eNOS mRNA水平与肺泡动脉氧分压差 (A- aDO2) 显著相关 (r=0. 920 1, P<0. 01)。结论　HPS时内皮细胞eNOS表达增强可能是肺血管NO增多的主要原因。     

大鼠颈动脉外膜炎症对血管内皮功能的影响

目的 探讨动脉外膜炎症对血管内皮功能的影响.方法 大鼠右颈动脉硅胶管包裹制备动脉外膜炎症大鼠模型.外膜炎症组、对照组各10只大鼠.测定各组大鼠包裹段颈动脉内皮型一氧化氮合酶(eNOS)及血清一氧化氮(NO)、血浆内皮素(ET)水平.结果 与对照组相比,外膜炎症组eNOS表达明显增强,血清NO水平明显降低,ET水平明显增高.结论 颈动脉外膜炎症大鼠在动脉内膜形态学改变尚不明显前即可检测到eNOS表达增强、NO的降低及ET的升高,提示血管外膜炎症引起内皮损伤后功能改变早于形态学改变.     

L-精氨酸对高血压大鼠主动脉平滑肌细胞凋亡的影响

目的 探讨一氧化氮前体L-精氨酸对肾血管性高血压大鼠主动脉平滑肌细胞凋亡的影响.方法 采用两肾一夹(2K1C)型肾血管性高血压大鼠模型.所有大鼠被随机分为4组(每组10只):假手术对照组;高血压对照组(2K1C组);L-精氨酸治疗组,于术后第5周开始给予L-精氨酸200 mg·kg-1·d-1;L-NAME处理组,于术后第5周开始同时给予L-NAME 10 mg·kg-1·d-1及L-精氨酸200 mg·kg-1·d-1.采用标准尾套法间接检测清醒大鼠血压.给药8周后,处死大鼠,用比色法测定血浆一氧化氮(NO)含量;分离胸主动脉检测胸主动脉平滑肌细胞凋亡(原位耒端标记法).结果 与假手术组大鼠相比,2K1C组大鼠血压明显升高,胸主动脉平滑肌细胞凋亡指数升高,而血浆NO含量明显降低.应用L-精氨酸治疗则明显降低了肾动脉狭窄术后高血压大鼠的血压,升高了血浆NO含量,同时也使胸主动脉平滑肌细胞凋亡指数进一步增大.NOS抑制剂L-NAME明显抑制了L-精氨酸的上述作用.结论 长疗程L-精氨酸治疗可刺激高血压血管平滑肌细胞凋亡增加.     

去氧皮质酮醋酸盐高血压大鼠模型中GTPCH-1和GFRP表达和活性的变化及其意义

目的检测DOCA盐高血压大鼠模型主动脉上,Ⅰ型GTP环化水解酶及其反馈调节蛋白的合成及活性改变,并探讨其对四氢生物喋呤/内皮一氧化氮合成酶(BH4/eNOS)系统生成一氧化氮过程的影响.方法以DOCA盐高血压大鼠模型主动脉组织为标本,以Griess试剂测定亚硝酸盐浓度的方法检测NO的水平;采用Western blot检测eNOS蛋白表达水平;应用高效液相色谱法(HPLC)测定BH4水平和GTPCH-1活性;并通过RT-PCR检测GFRP和GTPCH-1的mRNA表达水平.结果与对照大鼠相比较,在DOCA盐高血压大鼠的主动脉上,NO水平明显下降,eNOS蛋白表达水平和BH4水平明显降低,GTPCH-1活性及mRNA表达水平显著下降,而GFRP的mRNA表达水平明显增高.结论GTPCH-1的合成减少、活性降低,及其活性负调节蛋白GFRP表达增加,可能对DOCA盐高血压大鼠主动脉血管BH4合成减少、eNOS活性下降及NO水平降低起关键作用.而该机制可能是导致高血压患者动脉血管功能损伤的一个重要原因.     

大鼠动脉粥样硬化和高脂血症一氧化氮特点的比较

目的　研究大鼠动脉粥样硬化时一氧化氮 (NO)的特点并将其与单纯高脂血症进行比较。方法　大鼠分为 3组 :正常对照组 ( 10只 ) ,予普通饲料、饮水 ;高脂血症组 ( 10只 ) ,饲以高脂饲料 (不含维生素D3) ;动脉粥样硬化组 ( 10只 ) :维生素D33× 10 5U/kg 1次肌肉注射、球囊损伤主动脉内皮并饲以含维生素D31.2 5× 10 6U/kg饲料的高脂饲料。 90d后检测血管诱导型 (iNOS)及内皮型一氧化氮合酶 (eNOS)的表达及其活性。 结果　 90d后动脉粥样硬化组大鼠胸主动脉形成了明显的动脉粥样硬化斑块 ,而高脂血症组的大鼠胸主动脉结构未见改变 ;高脂血症组和动脉粥样硬化组血管中 ,eNOS较正常对照组表达减弱、活性下降 (P <0 .0 1) ,但两组间差异无显著性 ;高脂血症组iNOS与正常对照组相比 ,差异无显著性 ,而动脉粥样硬化组则明显升高 (P <0 .0 1)。斑块中iNOS呈强阳性。结论　高脂血症患者的eNOS表达减弱、活性下降 ,并在形成斑块时持续存在 ;iNOS只见于血管壁形成典型的动脉粥样硬化斑块时     

JAK抑制剂AG490对大鼠组织iNOS和NO合成的影响

目的 观察JAK/STAT通路对脓毒症大鼠组织和血清诱导型一氧化氮合成酶(iNOS)和一氧化氮(NO)合成的影响.方法 采用盲肠结扎穿孔术(cecal ligation puncture,CLP)制造大鼠脓毒症模型,将48只Wistar大鼠随机分为正常对照组、假手术组、CLP脓毒症组和AG490处理组.分别采集正常对照组、假手术组以及CLP组和AG490组2、6、24 h的组织和血清,采用RT-PCR测定组织iNOS mRNA表达水平,NO检测试剂盒(酶法)检测组织和血清NO含量;同时分别监测上述各时间点的平均动脉压、脉搏.结果 正常组大鼠血清、肺和血管含有少量iNOS mRNA和NO,与正常组大鼠相比,假手术组iNOS mRNA和NO的含量均未见明显差别,CLP后各时间点肺、血管和血清iNOS mRNA、NO含量均升高明显;而MAP 严重下降、脉搏剧烈升高(P＜0.05,P＜0.01).AG490处理组与CLP组相应时间点相比,肺、血管和血清多个时间点iNOS mRNA表达和NO含量均显著下降;血压和脉搏均显著好转(P＜0.05,P＜0.01).相关分析显示:肺和血管组织NO与iNOS mRNA的相关系数分别是0.75和0.73;血清与NO与肺、血管组织iNOS mRNA的相关系数分别是0.68和0.62(P＜0.05),MAP与肺、血管和血浆NO的相关系数分别是-0.85、-0.86和-0.91(P＜0.05).结论 抑制JAK/STAT通路活化可抑制脓毒症大鼠血浆和组织iNOS mRNA和NO合成;并改善循环功能.     

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.