马氏钳蝎蝎毒对离体豚鼠心脏的作用

本文观察了马氏钳蝎蝎毒(BmKv)对离体豚鼠心脏心肌收缩力和心率的影响。BmKv使心肌收缩力增强,心率减慢。心(?)可阻断其正性肌力作用,阿托品可阻断其负性心率作用,酚妥拉明和戊脉安对BmKv的作用没有影响.表明肾上腺素β受体与BmKv的正性肌力作用有关,而胆硷M受体与其负性心率作用有关,BmKv对离体心脏的作用与肾上腺素α受体、Ca~(++)通道无关。     

麦冬注射液对失血性休克大鼠血压及左心室功能的影响

本文以左心室内压(LVP)、左室内压变化速率(dp/dt)、心肌最大收缩值(Vmax)、股动脉血压及心电图变化作为指标,观察静注麦冬注射液对大鼠失血性休克时血压与心功能的影响。结果表明麦冬注射液有改善左心室功能与抗休克作用,但作用短暂;再次给少量麦冬注射液可明显延长作用时间。     

枸杞多糖对异丙肾上腺素致心力衰竭大鼠的保护作用及其机制

目的探讨枸杞多糖对异丙肾上腺素致心力衰竭大鼠的保护作用及其机制。方法 SD大鼠皮下注射异丙肾上腺素5mg.kg-1.d-1,连续给药7d,建立心力衰竭模型,观察枸杞多糖灌胃给予大鼠30d,对心力衰竭大鼠心功能、心肌损伤标志酶和抗氧化酶的影响。结果枸杞多糖（50、100和200mg.kg-1）可降低心力衰竭大鼠血清心肌损伤标志酶心肌肌钙蛋白（cTn-I）,改善心率;升高收缩压、左心室收缩压（LVSP）和左心室内压最大上升速率（＋LVdP/dtmax）,改善左心室收缩功能;升高左心室内压最大下降速率（!LVdP/dtmax）,改善左心室舒张功能;提高血清和心肌超氧化物歧化酶（SOD）水平,并相应降低脂质过氧化物丙二醛（MDA）的含量。结论枸杞多糖对心力衰竭大鼠具有保护作用,其机制与其提高机体抗氧化酶的作用有关。     

东亚钳蝎毒对动物血压作用的研究

研究了山东泗水东亚钳蝎毒对麻醉猫和犬血压的影响。实验结果表明iv0.06mg/kg蝎毒明显升高猫和犬的血压(P<0.05或P<0.01),妥拉苏林能拮抗蝎毒的升压作用。iv0.18mg/kg蝎毒血压呈先降后升双相变化。     

肠淋巴液对休克大鼠心肌特性的影响

大鼠重度失血性休克３０ｍｉｎ后，左心室内压的最大上升速率和左心室收缩压都显著下降，而左心室舒张末压却有所增高。说明心肌的收缩功能和舒张功能出现障碍，给少量淋巴液后使休克时下降的左心室内压的最大上升速率和左心室收缩压显著回升，而增的左心室舒张末压回落不明显，提示巴液改善休克心肌的收缩功能障碍，但对低血容量情况下的心肌舒功能无明显改善。     

五味子对心肌力学和心率的影响

ｉｖ４０％五味子１ｍＬ／ｋｇ对家兔心肌力学有明显影响,使左心室内压峰值（ＬＶＳＰ）降低,左心室内压最大上升速率（ｄｐ／ｄｔｍａｘ）减慢,左心室内压下降速率（ｄｐ／ｄｔｍｉｎ）减慢,左心室舒张末期压（ＬＶＥＤＰ）升高,压力－压力变化速率环ＩＰ（Ｐ－ｄｐ／ｄｔｍａｘ）缩小,等容收缩期段向左下方移位,心率减慢,说明五味子提取液具有抑制心肌收缩性能,减慢心率的作用。     

一氧化氮介导干扰素-α对大鼠心肌的负性肌力作用

目的:研究干扰素-α(IFN-α)对大鼠离体心脏及其乳头肌的影响和可能机制。方法:采用离体Langendorff灌流心脏和离体右心室乳头肌模型,观察IFN-α对左心室发展压、左心室内压最大上升和下降速率、左心室舒张末压、心率、冠脉流量和乳头肌平均最大收缩力的影响。结果:在离体Langendorff灌流心脏上,IFN-α(10 U/m l、100 U/m l、1 000 U/m l、10 000 U/m l)浓度依赖性的抑制左心室发展压、左心室内压最大上升和下降速率,抬高左心室舒张末压,高浓度IFN-α增加冠脉流量,但对心率无明显影响。在离体右心室乳头肌模型上,IFN-α浓度依赖性的抑制离体右心室乳头肌的发展张力。一氧化氮合酶抑制剂左旋硝基精氨酸甲酯(L-NAM E,1-0 4m o l/L)预处理后,可阻断IFN-α在离体灌流心脏和离体右心室乳头肌上的负性肌力作用。同时,IFN-α(1 000 U/m l)预处理10 m in可以引起右心室乳头肌对β-肾上腺素受体激动剂异丙肾上腺素(ISO,1-0 9m o l/L~1-0 6m o l/L)浓度曲线的反应性降低,合用L-NAM E(1-0 4m o l/L)预处理后,可削弱IFN-α的作用。结论:IFN-α对大鼠离体心肌具有负性肌力作用,并且能降低乳头肌对β-肾上腺素受体激动剂ISO的反应性,以上作用可能部分是由一氧化氮介导的。     

烫伤大鼠中枢氨基酸递质和心血管功能改变的关系

目的：观察烫伤早期大鼠下丘脑氨基酸递质含量及γ-氨基丁酸(GABA)受体的变化,及其对心血管指标的影响。方法：制备大鼠30％总体表面积Ⅲ度烫伤模型,采用脑组织游离氨基酸自动分析法测定烫伤大鼠下丘脑氨基酸递质相对含量,运用神经元突触膜放射配体结合法测定GABA受体功能,侧脑室内注射印防己毒素和海人酸,运用四导生理仪记录血压和心肌力学指标。结果：烫伤早期大鼠下丘脑GABA含量明显增加,谷氨酸减少,其他氨基酸递质含量无明显变化;GABA受体最大结合容量明显增加,平衡解离常数无明显改变。烫伤大鼠中枢GABA作用的阻断可明显回升其血压、左心室收缩压、左心室内压最大变化速率,谷氨酸的激活也有一定的作用。结论：大鼠烫伤早期中枢GABA及谷氨酸递质改变可能是其对心血管功能减退的影响因素之一。     

辽宁产东亚钳蝎毒内脏痛镇痛作用的机理研究

目的：研究辽宁产东亚钳蝎毒对内脏痛的影响。方法：用立体定位技术和细胞外记录方法，并做了蝎毒的镇痛作用与吗啡进行比较。结果：以丘脑后核内脏大神经诱发单位放电做为内脏痛的指标，静脉注射蝎毒提取液后，在２０只猫中１６例受到抑制。实验中观察了血压的变化，注射蝎毒提取液后未见血压的降低，反而出现血压一过性升高。结论：蝎毒的镇痛作用时间早，持续时间长，效价强于吗啡。     

雌激素抗肾上腺素实验性心律失常作用

目的： 探讨雌激素在整体水平下的抗肾上腺素心律失常作用及可能机制.方法：24只新西兰大白兔随机分为对照组、利多卡因组及雌激素组,各组同步记录体表心电图及经左心室插管测定心功能指标[ 左心室内压（LVSP）、左心室舒张终末压（LVEDP）、左心室内压最大上升速率（＋dp/dtmax）、左心室内压最大下降速率（-dp/dtmax） ], 比较各组按75 μg/kg 静脉注射0.1%肾上腺素前后心电图及相应心功能指标变化.结果：快速静脉注射肾上腺素可引起心功能指标明显上升,同时由于自律性增高致室性心律失常;雌激素可拮抗肾上腺素所致心功能改变,并延长室早（VP）出现时间,缩短室速（VT）持续时间及心律失常持续时间,其作用优于利多卡因（P〈0.05）.结论： 雌激素对心律失常有一定对抗作用,可能与Ca^2＋阻断及改变细胞膜离子通透性有关.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.