尿毒症性心瓣膜钙化特点及其对心脏结构和功能的影响

目的：应用超声心动图检测技术评价尿毒症心瓣膜钙化的特点及其对心脏结构和功能的影响。方法：从326例尿毒症患中选出35例50岁以下有二尖瓣和主动脉瓣钙化作为钙化组,并选出33例年龄、左心室舒张末期内径（LVEDD）、左心房内径（LAD）、主动脉内径（AOD）、左心室壁厚度（LVWT）、左心室射血分数（LVEF）和血压基本与钙化组匹配的无瓣膜钙化的尿毒症患作对照。观察指标为钙化的分布、反流量、LVEDD、LAD、AOD、LVWT和LVEF,观察期为1年。结果：钙化特点为：（1）主动脉瓣受累多见于二尖瓣;（2）瓣环多于瓣叶;（3）主动脉无冠瓣环钙化多于左和右冠瓣环钙化;（4）二尖瓣后瓣环钙化多于前瓣环钙化。1年后,钙化组的反流程度明显重于对照组。两组受试LVEDD、AOD、LVET和LVEF与1年前相比无明显变化,但钙化组的LAD较前明显扩大,而对照组无明显变化。结论：尿毒症瓣膜钙化会导致瓣膜口反流增加和LAD扩大。     

肠上皮11β⁃HSD1特异性敲除小鼠的小肠上皮屏障功能的研究

目的：探究小鼠肠上皮11β?羟类固醇脱氢酶（11β?hydroxysteroid dehydrogenase,11β?HSD1）基因特异性敲除对小肠上皮屏障功能的影响。方法：在C57BL/6J小鼠构建肠上皮特异性11β?HSD1敲除模型,野生型对照组和11β?HSD1敲除组分别给予高脂饮食喂养（第6周开始,喂养8周）。通过免疫组化方法观察小鼠小肠上皮绒毛、隐窝、杯状细胞数量、紧密连接蛋白?1（zona occludens?1,ZO?1）和炎症标志物F4/80的变化。结果：11β?HSD1基因敲除能够改变高脂饮食肥胖小鼠的绒毛长度和杯状细胞数量,显著减轻高脂饮食肥胖小鼠的小肠上皮炎症,改变紧密连接蛋白表达。结论：高脂饮食导致的小鼠小肠上皮屏障功能变化与11β?HSD1的作用密切相关。     

多廿烷醇抗动脉粥样硬化的分子机制研究

目的:探讨多廿烷醇抗动脉粥样硬化的分子机制?方法:采用腹腔注射维生素D3+高脂饮食喂养12周,建立大鼠动脉粥样硬化模型,同时使用多廿烷醇对其进行预干预?将40只SD 大鼠随机平分成4组,为正常组?动脉粥样硬化组?阿托伐他汀组及多廿烷醇组?酶法(终点法/CHO-PAP Method)检测血清血脂水平,ELISA法检测血清炎症因子超敏C反应蛋白(hs-CRP),取大鼠腹主动脉行电镜检查,采用Western blot法检测动脉粥样硬化斑块p38MAPK磷酸化的表达水平?结果:正常组可见完整内皮,动脉粥样硬化组大鼠腹主动脉有明显动脉粥样硬化形成,多廿烷醇组动脉粥样硬化程度较轻,大鼠血脂?血清hs-CRP炎症因子及大鼠腹主动脉p38MAPK磷酸化表达量均在正常组最低,动脉粥样硬化组最高,多廿烷醇组居中(P < 0.05)?结论:多廿烷醇除了具有调脂作用外,可对动脉粥样硬化大鼠血清炎症因子hs-CRP和 p38MAPK磷酸化有一定抑制作用,p38MAPK磷酸化通路可能参与多廿烷醇抗动脉粥样硬化机制?     

槐定碱对内毒素肺损伤小鼠p38MAPK的影响

目的探讨内毒素（细菌脂多糖,LPS）肺损伤小鼠肺组织p38丝裂原活化蛋白激酶（p38MAPK）表达的变化以及槐定碱对其影响。方法 60只BALB/c小鼠,除正常对照组、槐定碱对照组外,内毒素肺损伤模型组（LPS模型组）、槐定碱治疗高（12mg.kg-1）、中（6mg.kg-1）、低（3mg.kg-1）剂量组的BALB/c小鼠均尾静脉注射LPS制备急性肺损伤模型,注射后30min再分别腹腔注射生理盐水或槐定碱12、6、3mg.kg-1,各组均处理后6h取材,肉眼及光镜观察肺组织的病理变化,免疫组化SP法检测肺组织中总p38、磷酸化p38的表达,硝酸还原酶法检测血清NO含量。结果 LPS模型组肺脏病理改变明显加重,肺组织总P38和磷酸化p38的表达均增多和增强（P〈0.01）;血清NO显著升高（P〈0.01）;槐定碱三个剂量治疗组病理损伤均不同程度改善,总P38表达与LPS组比较差异无统计学意义,但磷酸化p38表达均显著小于模型组（P〈0.01）,血清NO含量显著低于LPS模型组（P〈0.01）。结论 p38MAPK参与了内毒素肺损伤的发病过程,槐定碱的抗内毒素肺损伤机制可能与下调p38MAPK的表达,抑制NO的释放有关。     

姜黄素对冈田酸损伤的HT⁃22细胞的保护作用

目的：探讨姜黄素（curcumin,Cur）对冈田酸（okadaic acid,OA）损伤的小鼠海马神经元细胞保护作用的机制,为阿尔茨海默病（Alzheimer’s disease,AD）的治疗提供新的理论基础。方法：小鼠海马神经元HT?22细胞经OA处理,分为对照组、Cur组、OA组、OA+Cur组,MTT检测各组细胞活力;Annexin V?FITC/PI双染色荧光显微镜及流式细胞仪检测各组细胞凋亡情况;DCFH?DA探针荧光显微镜及流式细胞仪测定细胞内活性氧（reactive oxygen species,ROS）水平;免疫印迹法检测Cleaved?caspase?3、Bcl?2、总微管相关蛋白Tau（t?Tau）、磷酸化的微管相关蛋白Tau（p?Tau）蛋白的水平。结果：与对照组相比,不同浓度的OA作用HT?22细胞24 h后,细胞活力呈剂量依赖性下降,差异有统计学意义。OA损伤持续一定时间后细胞内ROS水平升高,OA损伤后细胞凋亡增加,抗凋亡蛋白Bcl?2表达量降低、凋亡蛋白Cleaved?caspase?3蛋白表达升高且t?Tau、p?Tau蛋白表达异常增加。姜黄素作用OA损伤的HT?22细胞后,与OA组相比,OA+Cur组细胞活性增加,凋亡率降低,细胞内ROS生成减少,同时Bcl?2表达增加、Cleaved?caspase?3蛋白和t?Tau、p?Tau蛋白表达减少。结论：姜黄素可以保护OA损伤的小鼠海马神经元细胞,为阿尔茨海默病相关神经元细胞的保护提供了新的理论依据。     

血管紧张素-（1-7）对快速心房起搏犬心房重构及p38MAPK蛋白表达的影响

目的:观察快速心房起搏后犬心房重构与p38MAPK蛋白激活的关系,以及血管紧张素（Ang）-(1-7)的干预作用。方法:普通杂种犬15只随机分为3组,假手术组（Sham,S组）、心房起搏组（Pacing,P组）和心房起搏+Ang-(1-7)组（A组）,每组5只,所有犬均安置心房起搏器,除假手术组外,其余两组均给予500次/min持续右心房起搏,A组以6 μg/（kg·h）连续给予Ang-（1-7）,起搏2周后分别测定各组犬的心脏结构变化、心房有效不应期、房颤诱发率及持续时间,HE染色及Masson染色观察心房肌细胞结构变化,Western blot技术测定左心房组织p38MAPK、磷酸化p38MAPK的蛋白表达情况。结果:与假手术组比较,心房起搏组左室射血分数降低,心房有效不应期缩短,房颤诱发率及持续时间升高,心肌细胞排列紊乱,细胞间纤维组织增多,磷酸化p38MAPK水平明显升高（P＜0.05),Ang-(1-7)组较心房起搏组左室射血分数、心房有效不应期、房颤诱发率及持续时间均明显改善,磷酸化p38MAPK蛋白降低（P＜0.05）,但p38MAPK在3组间的差异未达到统计学意义。结论:快速心房起搏导致的心房重构与p38MAPK磷酸化激活有关,Ang-（1-7）可通过降低p38MAPK激活而保护心房重构。     

哮喘大鼠p38mRNA及磷酸化蛋白水平的动态变化

目的研究哮喘大鼠p38mRNA及磷酸化蛋白（P—p38）水平的动态变化。方法取SPF级雄性SD大鼠50只,随机分为正常对照组及哮喘组（分为哮喘0．5、1、3、12h组,每组10只。培养各组大鼠外周血单个核细胞（PBMCs）。分别应用RT—PCR、Western Bloting技术检测各组大鼠PBMCs p38mRNA及P—p38的相对表达水平。结果哮喘0．5、1、3h组PBMCs p38mRNA及P—p38蛋白表达水平均较正常对照组均显著升高（均P〈0．01）,哮喘12h组与正常对照组差异无统计学意义（P〉0．05）。正常对照组及哮喘0．5、3、12h组p38 mRNA及P—p38蛋白表达水平均较哮喘1h组显著降低（均P〈0．01）。结论P—p38可能在哮喘气道炎症和重塑中发挥重要作用。深入研究p38在哮喘发病机制中的具体调控作用,可能对支气管哮喘的临床防治有重要意义。     

急性胰腺炎患者外周血单个核细胞p38 MAPK信号通路的变化

目的： 探讨急性胰腺炎（acute pancreatitis,AP）患者外周血单个核细胞(peripheral blood mononuclear cell,PBMC)丝裂原活化蛋白激酶p38（p38 MAPK）信号水平的变化及其与疾病严重程度的关系。方法： 收集轻型胰腺炎（mild acute pancreatitis,MAP）组29例及重症胰腺炎（severe acute pancreatitis,SAP）组23例, 健康对照组21例。荧光实时定量PCR检测患者PBMC p38 MAPK基因表达水平,蛋白质印迹法检测PBMC p38 MAPK和磷酸化p38 MAPK（P-p38 MAPK）的水平。统计处理用单因素方差分析（One-Way Anova）和LSD法。结果： p38 MAPK基因表达水平,SAP组较对照组升高了11.7%（P＜0.05）,但MAP组与对照组比较差异无统计学意义;p38 MAPK总蛋白量SAP组较对照组增加了18.7% （P＜0.05）,但MAP组与对照组相比较差异无统计学意义;磷酸化p38 MAPK水平SAP 组较对照组和MAP组分别提高了444.4%（P＜0.01）和44.1%（P＜0.05）,MAP组较对照组增加了27.8%（P＜0.05）。结论： p38 MAPK磷酸化水平在AP患者PBMC中显著升高,并与AP严重程度呈正相关;AP患者PBMC p38 MAPK基因表达水平和蛋白水平变化较小。     

黄芩苷对哮喘大鼠 p38 MAPK 信号通路影响初探

目的：初步探讨黄芩苷防治支气管哮喘的作用机理。方法用卵蛋白致敏大鼠制备支气管哮喘动物模型,经黄芩苷干预治疗,运用免疫组化法及 Western Blot 法检测各组大鼠肺组织匀浆中 p38 MAPK 磷酸化蛋白表达量。结果两种检测方法均显示,p38 MAPK 磷酸化蛋白水平在模型组中有明显的增加,地塞米松组、黄芩苷高剂量组和低剂量组的 p38 MAPK 磷酸化蛋白水平均低于模型组（P ＜0．05）。结论黄芩苷能有效治疗哮喘的作用与抑制哮喘大鼠 p38 MAPK 信号通路的表达密切相关。     

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.