油酸增敏血管平滑肌对缩血管物质反应性的机制

以兔离体主动脉环为实验对象，观察ＯＡ对血管收缩性的影响与平滑细胞摄取＾４５Ｃａ＾２＋的关系。结果显示：ＯＡ对ＮＥ，ＫＣｌ引起的血管收缩和由苯肾上腺素与ＫＣｌ激活的血管平滑肌对＾４５Ｃａ＾２＋的摄取均有显著增强作用提示油酸在管物质的增敏作用与其非选择性地促进平滑肌膜钙通道开放有关。     

不同年龄自发性高血压大鼠血管平滑肌细胞Ca~（2＋）转运功能障碍及某些相关因素的变化

应用不同年龄自发性高血压大鼠（ＳＨＲ）血管平滑肌原代与传代细胞（ＶＳＭＣ），观察Ｃａ２＋转运功能障碍及某些相关因素的变化。结果表明：（１）在血压未升高的ＶＳＭＣＣａ２＋内流已较同龄对照组ＷＫＹ大鼠明显增加，而Ｃａ２＋外流量较ＷＫＹ大鼠显著降低。表明ＳＨＲＶＳＭＣ膜Ｃａ２＋转运功能障碍在血压升高前就已发生，并随年龄及血压增高有加重趋势；（２）ＶＳＭＣｃＡＭＰ及钙调素（ＣａＭ）含量变化与细胞膜Ｃａ２＋转运功能障碍基本同步，提示二者异常与细胞膜Ｃａ２＋转运功能障碍有密切关系；（３）血压升高前ＳＨＲＶＳＭＣ内ＡＮＧⅡ含量与ＷＫＹ大鼠相比无明显差异，但１６周龄５ＨＲＶＳＭＣ内ＡＮＧⅡ含量明显高于其幼鼠（Ｐ＜０．００１），与血压呈正相关。提示ＶＳＭＣ内ＡＮＧⅡ在血压升高过程中可能具有一定作用。以上结果表明高血压时ＶＳＭＣ膜Ｃａ２＋转运功能障碍有明显遗传倾向，ＶＳＭＣ内ＣＡＭＰ、ＣａＭ及ＡＮＧⅡ含量异常与上述障碍密切相关。     

不同程度减压低氧对心肌肌浆网钙摄取和Ca~（2＋）－ATP酶活性的影响

将实验大鼠分别置于模拟５０００和８０００ｍ海拔高度的低压仓内７ｄ，观察两种减压低氧对大鼠左心功能及左心室肌肌浆网（ＳＲ）钙摄取及Ｃａ~（２＋）－ＡＴＰ酶活性的影响。结果表明，５０００ｍ低氧大鼠左心功能抑制程度明显轻于８０００ｍ低氧，ＳＲＣａ~（２＋）－ＡＴＰ酶活性及~（４５）Ｃａ~（２＋）摄取降低程度也明显低于８０００ｍ低氧，ＡＴＰ酶和钙摄取的变化基本一致。从而推论，心肌ＳＲＣａ~（２＋）－ＡＴＰ酶活性及~（４５）Ｃａ~（２＋）摄取的改变可能是心功能变化的病理生理基础之一。     

钙离子对自发性高血压大鼠（SHR）肠系膜血管床活动的影响

本文以ＳＨＲ为实验组，ＷＫＹ为对照组，以灌流压为血管舒缩的指标，对其离体肠系膜血管床，初步研究了钙离子的稳定作用，实验结果如下：（１）ＳＨＲ与ＷＫＹ相比，对血管活性物质去甲肾上腺素（ＮＡ）和氯化钾（ＫＣＩ）均表现出较高反应性。（２）在ＮＡ（１．７×１０Ｍ）使血管床收缩的基础上，Ｃａ￣（＋＋）（２０ｍＭ）使之明显舒张，ＳＨＲ的舒张程度小干ＷＫＹ约１８．１７％（Ｐ＜０．０５，ｎ＝６）．（３）在ＫＣＩ（８０ｍＭ）使血管床收缩的基础上，Ｃａ＋＋（４０ｍＭ）使之明显舒张，ＳＨＲ的舒张程度小于ＷＫＹ约１５．０７％（Ｆ＜０．０５，ｎ＝６）。     

苄普地尔对兔胸主动脉平滑肌的钙拮抗作用

苄普地尔（Ｂｅｐｒｉｄｉｌ，Ｂｅｐ）是一长效的Ｃａ２＿￣＋拮抗剂。它和Ｖｅｒａｐａｍｉｌ（Ｖｅｒ）对ＣａＣｌ＿２、ＫＣｌ引起兔胸主动脉条收缩呈非竞争性拮抗作用，其ＰＤ＇＿２分别为５．４和５．８。同时两药均能抑制ＮＥ依赖内Ｃａ＿２￣＋释放性收缩，较高浓度时对ＮＥ依赖外Ｃａ＿２￣＋性收缩亦有明显抑制。说明ＢｅＰ与Ｖｅｒ作用相似，主要作用于细胞膜上ＰＤＣ，但Ｂｅｐ对血管平滑肌的作用比Ｖｅｒ弱。     

血管平滑肌α肾上腺素受体触发Ca~2 运动的研究

血管平滑肌α肾上腺素受体触发Ｃａ￣２＋运动的研究课题负责关永源（中山医科大学药理学教研室；广州，５１００８９）该项研究采用离体血管条收缩，Ｃａ￣２＋内流子外溢及Ｆｕｒａ－２荧光测定胞浆Ｃａ￣２＋瞬即变化等技术，研究血管平滑肌α肾上腺受体触发Ｃａ￣２＋...     

肺心病急性加重期48例电解质血气与预后关系分析

本文对４８例肺心病急性加重期住院治疗中血清电解质Ｋ￣＋、Ｃｌ￣－、Ｎａ￣＋和ＣＯ＿２ＣＰ及动脉血气ＰａＯ＿２、ＰａＣＯ＿２、ＰＨ、ＢＥ改变诸资料进行分析，提示上述各项变化对该病预后均有影响。其中ＰａＯ＿２＜５．３ＫＰａ（４０ｍｍＨｇ）、ＰａＣＯ＿２＞１０．７ＫＰａ（８０ｍｍＨｇ）、ＢＥ＞＋６．５ｍｍｏｌ／Ｌ和血Ｃｌ＿－≤８０ｍｍｏｌ／Ｌ、血Ｎａ￣＋＜１２５ｍｍｏｌ／Ｌ者死亡率均显著增高（达１００％），ＰＨ＞７．４５，血Ｋ￣＋≤３．０ｍｍｏｌ／Ｌ、ＣＯ＿２ＣＰ≥２９．３ｍｍｏｌ／Ｌ者死亡率亦明显升高（达８０％）。     

雌二醇对免离体血管条收缩及钙流动的影响

用离体兔胸主动脉条标本观察雌二醇对ＮＥ、ＫＣＬ和ＣａＣｌ２引起血管收缩的量－－效曲线的影响,发现大剂量Ｆｓｔ合ＮＥ、ＫＣＬ和ＣａＣｌ２的量－－效曲线非平行右移,最大反应均轻度压低ＩＣ５０,分别为２５００ｕｍｏｌ．Ｌ＾－１和２２０ｕｍｏｌ．Ｌ＾－１;提示Ｆｓｔ的扩张血管作用,可能与抑制血管平滑肌膜Ｃａ＾＋内流内关。     

黄腐酸和超氧阴离子对软骨细胞内钙离子浓度的影响

目的：为探讨病区黄腐酸（ＦＡ）和活性氧自由基可能引起大骨节病，我们测定了在ＦＡ和超氧自由基（）作用下，软骨细胞内钙离子浓度（［Ｃａ￣（２＋）］ｉ）随时间的变化。方法：应用萤光指示剂Ｆｕｒａ－２／ＡＭ测定细胞内钙离子浓度并用下式计算：［Ｃａ￣（２＋）］ｉ＝Ｋｄ（Ｆ－Ｆ＿（ｍｉｎ））／（Ｆ＿（ｍａｘ）－Ｆ）。结果：作用４５ｍｉｎ后，［Ｃａ￣（２＋）］ｉ从１．６２×１Ｏ￣（－７）ｍｏｌ／Ｌ升达１．１８×１０￣（－６）ｍｏｌ／Ｌ；ＦＡ作用４ｈ后，［Ｃａ￣（２＋）］ｉ从３．７８×１０￣（－７）ｍｏｌ／Ｌ升达５．５１×１０￣（－７）ｍｏｌ／Ｌ。结论：说明ＦＡ与·有相似的促进［Ｃａ￣（２＋）］ｉ升高的作用，［Ｃａ￣（２＋）］ｉ的升高将造成软骨细胞损伤，而软骨坏死是大骨节病的重要病理特症之一。     

异搏定对缺氧和缩血管物质促肺动脉平滑肌细胞增生的影响

采用~３Ｈ－ＴｄＲ掺入、结晶紫染色以及ＰＣＮＡ免疫细胞化学方法观察异搏定对缺氧和４种缩血管物质促肺动脉平滑肌细胞增生的影响。结果发现：①４种缩血管物质（ＥＴ－１、ＡＴⅡ、Ａ_（２３１７８）、ＫＣｌ）均有不同程度的促肺动脉平滑肌细胞（ＰＡＳＭＣ）ＤＮＡ合成的作用,其作用可被Ｃａ~（２＋）通道阻滞剂异搏定阻断;②缺氧所致ＰＡＳＭＣ增殖的３项指标变化同样可被异搏定阻断。表明［Ｃａ~（２＋）］ｉ升高可能为缺氧和缩血管物质引起肺血管ＳＭＣ收缩和增生的信息传递的共同途径。     

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.