维拉帕米对瘢痕成纤维细胞β1、α1-4整合素表达的影响

目的：了解维拉帕米对瘢痕成纤维细胞表达β1、α1-4整合素的影响，并从整合素功能角度探讨其抗瘢痕增生挛缩作用机制。方法：瘢痕成纤维细胞体外培养，利用原位ELISA技术检测瘢痕成纤维细胞在维拉帕米作用下后表达整合素的水平。结果：不同浓度的维拉帕米对瘢痕成纤维细胞膜上的β1、α1-4整合素粘附分子表达均有着不同程度的抑制作用，其中对β1、α1、α2、α3和α4整合素的最大抑制作用浓度分别达21.01%、27.47%、11.44%、30.77%和29.60%；另外，瘢痕成纤维细胞在低浓度维拉帕米作用时对其细胞形态无明显影响，而当维拉帕米浓度超过50ug/ml时，可造成细胞体积缩小、间隙增大。结论：维拉帕米对瘢痕成纤维细胞β1、α2、α3和α4整合素表达有较为显著的抑制作用；通过抑制细胞整合素粘附分子表达不但对细胞的生物学活性有一定影响，而且对细胞与细胞外间质之间的收缩动力传导起阻滞作用。由此提示，维拉帕米具有良好的抗瘢痕增生挛缩作用。值得进一步研究探讨。     

硬皮病皮损成纤维细胞整合素表达的免疫电镜观察*

目的：研究硬皮病皮损成纤维细胞整合素表达及细胞超微结构特征。方法：将培养的硬皮病皮损成纤维细胞置包被纤维粘连蛋白的培养瓶中作粘附培养,运用间接免疫胶体金技术在电镜下观察成纤维细胞表面整合素α5,β1亚基表达、分布特征及细胞超微结构变化。结果：硬皮病皮损成纤维细胞整合素α5,β1亚基表达均较正常成纤维细胞显著增加（P<0.01）,并呈簇集分布的特征;细胞内骨架成分微丝密集成束。结论：整合素α5,β1介导的纤维粘连蛋白与成纤维细胞相互作用在硬皮病时增强。     

整合素和TGF-β受体在增生性瘢痕成纤维细胞中的表达研究

目的了解增生性瘢痕成纤维细胞表面整合素α1-3、αv、β1和转化生长因子β(TGF-β)受体Ⅰ分布的情况及相互关系.方法采用免疫组化染色的方法,观察10例人体增生性瘢痕和10例正常人皮肤组织成纤维细胞表面各整合素亚单位和TGF-β受体Ⅰ表达的差异,以了解两者间的相关程度.结果增生性瘢痕成纤维细胞表面整合素α1-3、αv、β1和TGF-β受体Ⅰ的表达均明显高于正常对照组(P＜0.01),其中以整合素α1、α3和β1的表达更为显著.增生性瘢痕成纤维细胞表面各整合素亚单位(除了α2以外)与TGF-β受体Ⅰ在表达强度上呈正相关(P＜0.05).结论增生性瘢痕成纤维细胞表面各整合素亚单位的高度表达是瘢痕产生与发展的重要因素之一;TGF-β受体Ⅰ的高度表达提示增生性瘢痕成纤维细胞对于TGF-β的高反应性;整合素与TGF-β受体Ⅰ在瘢痕形成过程中相互影响.     

整合素和TGF-β受体在增生性瘢痕成纤维细胞中的表达研究

目的 了解增生性瘢痕成纤维细胞表面整合素α1-3、αv、β1和转化生长因子β(TGF-β)受体1分布的情况及相互关系。方法 采用免疫组化染色的方法,观察10例人体增生性瘢痕和10例正常人皮肤组织成纤维细胞表面各整合素亚单位和TGF-β受体I表达的差异,以了解两者间的相关程度。结果 增生性瘢痕成纤维细胞表面整合素α1-3、αv、β1和TGF-β受体I的表达均明显高于正常对照组(P<0.01),其中以整合素α1、α3和β1的表达更为显著。增生性瘢痕成纤维细胞表面各整合素亚单位(除了α2以外)与TGF-β受体I在表达强度上呈正相关(P<0.05)。结论 增生性瘢痕成纤维细胞表面各整合素亚单位的高度表达是瘢痕产生与发展的重要因素之一;TGF-β受体I的高度表达提示增生性瘢痕成纤维细胞对于TGF-β的高反应性;整合素与TGF-β受体I在瘢痕形成过程中相互影响。     

早、晚期增生性瘢痕组织内β_1、α_1整合素表达研究

目的 :了解早、晚期增生性瘢痕组织内 β1 、α1 整合素粘附分子表达水平及在瘢痕增生发展中的作用和意义。方法 :制备早、晚期增生性瘢痕组织石蜡切片标本 ,借助整合素粘附分子单克隆抗体 ,通过免疫组织化学染色技术检测组织内 β1 、α1 整合素的表达情况。结果 :在早、晚期增生性瘢痕组织中 ,β1 、α1 整合素粘附分子的表达有着较为明显的差异。主要表现为在增生早期瘢痕组织内β1 、α1 整合素粘附分子表达较为广泛 ,无论是表皮基底细胞 ,还是瘢痕浅层、深层以及接近正常皮肤组织边缘的成纤维细胞均有较强的阳性信号表达。而在增生晚期的瘢痕组织中 ,β1 、α1 整合素粘附分子的表达一般局限于表皮基底细胞和部分瘢痕成纤维细胞膜上 ,同时 β1 、α1 的信号强度也比瘢痕增生早期弱。结论 :早、晚期增生性瘢痕组织内 β1 、α1 整合素粘附分子表达差异一方面反映了在瘢痕增生发展过程中组织内成纤维细胞的活性变化 ,另一方面也提示了整合素粘附分子积极参与增生性瘢痕结缔组织的构建。     

水化作用对瘢痕增生影响的细胞学研究

目的：观测水化作用对成纤维细胞的影响，探索其作用机制。方法：以表皮细胞与成纤维细胞分层培养为研究模型，采用放射免疫、免疫组化及图像分析等方法，观测对表皮细胞水化处理后成纤维细胞形态、胶原合成及细胞因子表达的影响。结果：采用水化处理后，成纤维细胞胶原合成、TGF-β1、TGF-β(RI)和α-SM actin阳性表达水平明显下降。结论：通过对表皮细胞水化，可抑制成纤维细胞的胶原合成。     

TGF—β1对瘢痕对纤维细胞α—SMA表达的诱导作用

目的 研究转化生长因子β１（ＴＧＦβ１）对瘢痕成肌纤维细胞中α－平滑肌肌动蛋白（α－ＳＭＡ）表达的诱导作用。方法 以５例增生性瘢痕为标本,３例正常瘢痕为对照,２成纤维细胞二维培养和三维培养体系及ＬＳＡＢ免疫组织化学染色技术,观察了在不同ＴＧＦ－β１浓度条件作用下,来源的于增生性瘢痕和正常瘢痕在成纤维细胞表达α－ＳＭＡ的情况。结果 （１）不同浓度的ＴＧＦ－β１诱导瘢痕成纤维细胞表达α－ＳＭＡ的作用不     

病理性瘢痕和正常皮肤来源成纤维细胞CD90、α-SMA表达的研究

目的检测体外培养的病理性瘢痕和正常皮肤成纤维细胞中CD90、α-SMA表达情况,并分析二者的相关性。方法取手术切除的瘢痕疙瘩4例、增生性瘢痕12例、正常皮肤（瘢痕边缘）16例,每组标本中选取特异性较强的组织块各3例,原代培养不同组织来源的成纤维细胞,取第3代细胞制成细胞爬片,免疫荧光双重标记（CD90和α-SMA）细胞,通过计算每系成纤维细胞CD90、α-SMA的荧光值,检测成纤维细胞中CD90、α-SMA的表达情况,并分析CD90和α-SMA表达的关系。结果增生性瘢痕来源成纤维细胞的CD90表达强于正常皮肤的成纤维细胞（P〈0.05）,瘢痕疙瘩来源成纤维细胞的CD90表达和正常皮肤的表达无差异（P〉0.05）;增生性瘢痕与其周围皮肤、瘢痕疙瘩与其周围正常皮肤来源成纤维细胞的α-SMA表达均无差异（P〉0.05）;在同一细胞内CD90和α-SMA具有共区域和共趋势表达的特点。结论增生性瘢痕来源的成纤维细胞存在CD90多量表达的特异表型,瘢痕成纤维细胞CD90和α-SMA有共区域表达的特点和一致的表达趋势,二者可能有一定的协同关系。     

早,晚期增生性瘢痕组织内β1,α1整合素表达研究

目的：了解早，晚期增生性瘢痕组织内β１，α１整合素粘附分子表达水平及在瘢痕增生发展中的作用和意义。方法：制备早，晚期增生性瘢痕组织石卉切片标本，借助整合素粘附分子单克隆抗体，通过免疫组织化学染色技术检测组织内β１，α１整合素的表达情况。结果早，晚期增生性瘢痕组织中，β１，α１整合素粘附分子的表达有着较为明显的差异。主要表现为在增生早期瘢痕组织内β１，α１整合素粘附分子表达较为广泛，无论是表皮基底细     

整合素α4β1／VCAM—1在肺结核淋巴细胞募集中的作用研究

目的：探讨整合素α４β１ＮＣＡＭ－１在肺结核淋巴细胞募集过程中的作用。方法：取４０例肺结核患者的肺组织石蜡标本，用免疫组化方法检测肺组织中淋巴细胞是否表达整合素α４β１，以及血管内皮细胞是否表达血管细胞粘附分子－１（ＶＣＡＭ－１）。结果：肺组织中大量淋巴细胞表达整合素α４β１，同时发现血管内皮细胞表达ＶＣＡＭ－１呈阳性。结论：整合素α４β１ＮＣＡＭ－１是介导肺结核病中淋巴细胞募集的重要途径。     

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.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.