rhGM-CSF对胎儿口腔粘膜成纤维细胞增殖及DNA合成的影响

目的探讨rhGM-CSF促进口腔溃疡愈合的作用机制.方法取体外培养的胎儿口腔粘膜成纤维细胞,用rhGM-CSF刺激成纤维细胞后第2、4、6天用细胞计数及3H-胸腺嘧啶掺入法(3H-TdR)测定其增殖情况.结果 rhGM-CSF对胎儿口腔粘膜成纤维细胞增殖及DNA合成有刺激作用,在80～100 ng/ml 时,细胞生长达到最佳状态,过高浓度rhGM-CSF的刺激作用反而下降.结论 rhGM-CSF可以通过刺激成纤维细胞增殖及DNA合成促进口腔溃疡愈合.     

PDGF-AB对增生性瘢痕成纤维细胞增殖的影响

目的：探讨ＰＤＧＦ－ＡＢ促进伤口愈合的作用机理及其在瘢痕增生中的作用。方法：取体外培养的人正常皮肤及增生性瘢痕成纤维细胞（ＨＴＳＦＢ）测定生长曲线,用ＭＴＴ法观察ＰＤＧＦ－ＡＢ对其增殖影响的差异。结果：两种细胞生长曲线存在差异,ＰＤＧＦ－ＡＢ对两种成纤维细胞增殖均有明显刺激作用,且均呈剂量依赖性关系,但作用有差异。结论：ＰＤＧＦ－ＡＢ可能通过刺激成纤维细胞增殖促进伤口愈合,同时在瘢痕增生性疾病中起     

PDGF-AB对体外培养的成纤维细胞超微结构的影响

目的：观察PDGF－AB对体外培养的成纤维细胞超微结构的影响，探讨PDGF－AB促进创面愈合的机制．方法：取第3～6代培养的成纤维细胞，用0μg／L，12．5μg／L，50μg／L的PDGF－AB分别作用48h，然后用扫描电镜和透射电镜观察．结果：PDGF－AB明显增加成纤维细胞表面突起和纤维样物质，以及增强成纤维细胞的合成功能．结论：PDGF－AB可能通过激活、趋化成纤维细胞、增强细胞合成功能来促进创面愈合．     

心室成纤维细胞条件培养液促进成纤维细胞增殖

目的：探讨心室成纤维细胞条件培养液成纤维细胞自身增殖作用。方法：利用成纤维细胞培养、同位素掺入率测定和RT－PCR方法。结果：心室成纤维细胞条件培养液能显增加细胞自身的[^3H]-胸腺嘧啶核苷的掺入率,并具有剂量依赖性,促进细胞自身的c-fos基因的表达,刺激后1h达高峰。ETA受体拮抗剂BQ123能部分阻断条件培养液增加成纤维细胞增殖的作用,而AT1受体拮抗剂CV11974和（α-肾上腺素受体拮抗剂regitin无此效果。结论：心室成纤维细胞能自分泌内皮素等生物活性物质,促进成纤维细胞增殖。     

抑癌基因p27对增生性瘢痕成纤维细胞增殖及DNA合成的影响

目的：探讨抑癌基因p27对增生性瘢痕的作用。方法：取体外培养的人增生性瘢痕成纤维细胞（HTsFb），将构建的pcDNA3-p27真核表达质粒体外转染HTsFb，经G418筛选获得稳定性表达的细胞克隆，用MTT和^3H-TdR掺入法观察抑癌基因p27对HTsFb增殖及DNA合成的影响。结果：抑癌基因p27对HTsFb增殖及DNA合成均有显著抑制作用。结论：抑癌基因p27可能通过抑制成纤维细胞增殖及DNA合成抑制瘢痕增生。     

高糖加高胰岛素对心肌成纤维细胞增殖的影响

目的 利用体外培养的乳鼠心肌成纤维细胞,观察高浓度葡萄糖加高浓度胰岛素对心肌成纤维细胞增殖的影响,并探讨其可能作用机制。方法 以培养的乳鼠心肌成纤维细胞为模型分组给药后,利用结晶紫染色法观察细胞的增殖情况;利用[^3H]thymidine标记法测定细胞DNA的合成;利用流式细胞仪分析细胞周期。结果与正常对照组相比,高糖、高胰岛素、高糖加高胰岛素组分别造成了心肌成纤维细胞数目、DNA合成及S＋G2＋M期细胞的百分比增加,（P〈0．01）,而高糖加高胰岛素组的各项指标值显著高于其它各组,（P〈0．01）。结论 高糖加高胰岛素具有协同促进心肌成纤维细胞增殖的作用。     

石棉纤维诱导的细胞因子对肺成纤维细胞作用的研究

用肺泡灌洗法获取兔肺巨噬细胞，进行体外培养，取其上清液分别用同位素掺入法和MTT比色法测定上清液中炎性细胞因子TNF和IL－6的活性．并将上清液与人胚肺成纤维细胞（WI－38）培养，用同位素掺入法测定成纤维细胞生长增殖和胶原合成。用氯氨-T法分析肺成纤维细胞总羟脯氨酸含量，并用抗TNF抗体和IFNγ进行成纤维细胞增殖和胶原合成抑制试验。结果显示，石棉纤维能刺激AM释放TNF和IL－6，其活性分别为1198U／m、1511U／ml，均高于TiO2对照组。浓度与效应之间有剂量反应关系（P＜0.05）．石棉纤维诱导的AM上清液能促进肺成纤维细胞增殖和胶原合成，用3H－TdR掺入法，cpm均值为2669，14C－Pro掺入法cpm均值为27952，高于TiO2对照和阴性对照，HOP含量明显增高．抗TNF抗体和IFNγ能抑制肺成纤维细胞增殖和胶原告成。     

染料木素和槲皮素对成纤维细胞增殖和胶原合成的抑制作用

目的：研究染料木素（genistein,GE)和槲皮素（quercetin,QU)对成纤维细胞增殖和胶原合成的影响。方法：用结晶紫染色法测定光密度值检测NIH3T3成纤维细胞增殖,用3H－脯氨酸掺入法测定3H－脯氨酸掺入NIH3T3细胞的Bq值表示胶原合成作用,结果：GE和QU都能浓度依赖性 抑制血清,血小板源生长因子（PDGF）或转化生长因子β1（TGF－β1）刺激的NIH3T3细胞增殖和胶原合成。结论：GE和QU具有体外抑制成纤维细胞增殖和胶原合成的作用。     

视网膜下液体对人成纤维细胞的刺激作用

观察２３例孔源性视网膜脱离患者视网膜下液体（ＳＲＦ）对培养的人成纤维细胞生长的刺激作用，同时采用￣３Ｈ－ＴｄＲ掺入法测定了ＳＲＦ对成纤维细胞ＤＮＡ的合成作用。结果表明，所有ＳＲＦ均有刺激成纤维细胞增殖的能力，增殖率为５５．４％～２７７．８％，ＳＲＦ能促进成纤维细胞的ＤＮＡ合成（Ｐ＜０．０５）。ＳＲＦ与视网膜脱离的增殖性玻璃体视网膜病变（ＰＶＲ）程度、脱离范围和脱离持续时间呈正相关。     

积雪草甙对体外培养的成纤维细胞的作用

目的 探讨积雪草甙治疗增生性瘢痕的作用机制。方法 采用光镜、电镜、∧3H－TdR、∧3H脯氨酸掺入及MTT比色等方法检测成纤维细胞核DNA合成和胶原蛋白的合成。结果 积雪草甙不仅能影响成纤维细胞的超微结构,布且能抑制成纤维细胞增殖及胶原蛋白的合成。结论 积雪草在预防和治疗增生性瘢痕中有重要作用,其机制可能与抑制成纤维细胞增殖和胶原蛋白合成有关。     

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.