Omega-3多不饱和脂肪酸对角化细胞及成纤维细胞的作用

目的 观察Omega 3多不饱和脂肪酸对人表皮角化细胞增殖和人皮肤成纤维细胞分化的作用.方法 体外培养人表皮角化细胞和人皮肤成纤维细胞,用不同浓度Omega-3多不饱和脂肪酸(EPA)干预角化细胞,BrdU法测角化细胞增殖;不同浓度EPA干预成纤维细胞,ELISA法检测a-平滑肌肌动蛋白(a-SMA)及人胶原蛋白1的表达;MTT法观察EPA对成纤维细胞活性的影响.结果 EPA浓度在200 μmol/L时,对人表皮角化细胞有明显的促增殖作用,显著提高成纤维细胞培养液中a-SMA的表达,降低人胶原蛋白1的表达.结论 EPA可能通过促进角化细胞增殖、诱导成纤维细胞分化改善伤口愈合.     

rhEGF对人皮肤成纤维细胞的促增殖作用

目的 研究重组人表皮生长因子(rhEGF)在不同浓度下对人皮肤成纤维细胞增殖的影响,为临床准确定量应用这两种因子修复创面、加速创面愈合提供理论依据. 方法 体外培养人皮肤成纤维细胞,分别用浓度为0,10,30,50,80,100,150 μg/L的rhEGF干预细胞,48 h后四甲基偶氮唑盐比色法(MTT)检测细胞的活性.选择最适浓度生长因子干预的细胞,用流式细胞仪检测细胞的DNA倍体情况. 结果 不同浓度的rhEGF分别对成纤维细胞干预48 h后,显示rhEGF在80μg/L浓度时MTT值最大;并检测出在最适浓度生长因子干预24 h后细胞大多处于DNA合成前期和合成期. 结论 rhEGF浓度在30-100μg/L之间对人皮肤成纤维细胞有明显的促增殖作用,其中以80μg/L较显著.     

无机砷及其代谢产物诱导体外培养人皮肤成纤维细胞的增殖作用

目的 探讨无机砷(iAsⅢ)、单甲基胂酸(DMAⅤ)、二甲基胂酸(MMAⅢ)对人皮肤成纤维细胞增殖作用的影响.方法 原代培养的人皮肤成纤维细胞,通过直接细胞计数法和噻唑蓝(MTT)还原法检测iAsⅢ、DMAⅤ、MMAⅢ对人皮肤成纤维细胞生长的影响.结果 荧光倒置显微镜下观察原代、11～13代人皮肤成纤维细胞形态;与对照组比较,人皮肤成纤维细胞经不同浓度的iAsⅢ、DMAⅤ、MMAⅢ诱导后,吸光度值均有改变,存在剂量-效应关系(P<0.05).0.5～5.0 μmol/L浓度的iAsⅢ、DMAⅤ、MMAⅢ对人皮肤成纤维细胞有明显的增殖作用,而10～15 μmol/L浓度的iAsⅢ、DMAⅤ 、MMAⅢ产生明显的毒性作用,毒性比较MMAⅢ>iAsⅢ> DMAⅤ.MMAⅢ对人皮肤成纤维细胞有明显的增殖作用,且峰值出现在0～1 μmol/L.结论 低浓度无机砷及其代谢产物刺激人皮肤成纤维细胞增殖,高浓度具有细胞毒性.     

5味中药对体外培养原代人外阴皮肤成纤维细胞增殖的影响

目的 利用原代培养的人外阴正常皮肤成纤维细胞,观察中药对人外阴皮肤成纤维细胞增殖的影响.方法 胰蛋白酶消化、分离及培养人外阴皮肤成纤维细胞;倒置显微镜下观察成纤维细胞生长状态;HE染色观察细胞爬片下的形态及着色;免疫组织化学染色观察成纤维细胞中间丝波形蛋白;测定细胞生长曲线;MTT法测定莪术、黄芪、丹参、川穹及当归5种中药作用后细胞增殖能力.结果 生长曲线测定结果显示:传6代内以及传6代内复苏人外阴皮肤成纤维细胞增殖能力均很强.MTT检测结果显示:5种药物在特定浓度范围内均能抑制人外阴皮肤成纤维细胞的增殖.分别作用于人外阴皮肤成纤维细胞72 h后,莪术5、10、100 mg/L浓度组,黄芪500、1 000 mg/L浓度组,丹参1 000 mg/L浓度组,川穹500、1 000 mg/L浓度组,当归100、500、1 000 mg/L浓度组均显示抑制增殖作用,与对照组比较差异有统计学意义(P＜0.05),其中莪术和川穹的抑制强度呈剂量依赖性.结论 成功建立了体外人外阴皮肤成纤维细胞原代培养及鉴定方法;特定浓度范围内的莪术、黄芪、丹参、川穹和当归能够抑制人外阴皮肤成纤维细胞的体外增殖.     

三羟基异黄酮对人瘢痕疙瘩成纤维细胞增殖及侵袭作用的影响

目的 观察5,7,4'-三羟基异黄酮(Genistein)对体外培养的人瘢痕疙瘩成纤维细胞生长及侵袭作用的影响,探讨其抗纤维化作用的机制.方法 以25、50、100μmol/L浓度Genistein处理体外培养的人瘢痕疙瘩成纤维细胞,MTT法检测细胞增殖活性,3H-脯氨酸掺入法检测细胞胶原合成,Transwell小室趋化运动模型检测细胞侵袭能力.结果 Genistein作用后,瘢痕疙瘩成纤维细胞的增殖及胶原合成作用降低,细胞的侵袭能力显著下降.随着药物浓度增加,对细胞的这种抑制作用也增强.结论 Genistein具有体外抗瘢痕疙瘩成纤维细胞纤维化与侵袭的作用,可成为治疗病理性瘢痕及纤维化疾病的有效药物.     

熊去氧胆酸对人肝内胆管瘢痕成纤维细胞生长影响的研究

目的探讨熊去氧胆酸(UDCA)对人肝内胆管瘢痕成纤维细胞生长的影响。方法原代培养人肝内胆管瘢痕组织成纤维细胞。通过显微镜观察和免疫荧光染色鉴定细胞,采用噻唑蓝(MTT)法和划痕实验检测UDCA对瘢痕成纤维细胞生长的影响。结果 1成功原代培养人肝内胆管瘢痕成纤维细胞;2MTT显示:CA和DCA浓度在0.5~10.0μmol/L之间促进细胞活力,而UDCA浓度大于5μmol/L时,则明显抑制细胞的活力(P<0.05)。随着UDCA浓度升高,CA组和DCA组细胞活力逐渐下降;3划痕实验结果显示:随着UDCA浓度升高,CA组和DCA组细胞愈合距离逐渐增加。结论 UDCA可能抑制CA和DCA的促瘢痕成纤维细胞生长的作用。     

青蒿素、青蒿琥酯抗皮肤瘢痕的体外实验研究

目的:检测青蒿素和青蒿琥酯对人皮肤瘢痕成纤维细胞生长的影响,探索建立抗皮肤瘢痕膏剂的有效配方.方法:原代培养建立人皮肤瘢痕成纤维细胞系,MTT法和流式细胞仪检测细胞凋亡,计算增殖抑制率和凋亡指数.结果:浓度为0.206 g/L和0.103 g/L的青蒿素对人皮肤瘢痕成纤维细胞有明显的抑制作用;青蒿琥酯对人皮肤瘢痕成纤维有明显抑制作用,且呈浓度依赖性.浓度为0.206 g/L的青蒿素和浓度为240、120 mg/L的青蒿琥酯的凋亡率和坏死率较对照组高(P<0.01).结论:青蒿素、青蒿琥酯可抑制体外培养的皮肤瘢痕成纤维细胞的生长,作为抗皮肤瘢痕外用膏剂的功效药物, 值得进一步研究.     

三苯氧胺联合顺铂抑制人卵巢癌细胞HO-8910增殖的实验研究

目的:研究三苯氧胺(TAM)和顺铂(DDP)对人卵巢癌细胞生长的影响,验证两种药物联合应用治疗人卵巢癌的有效性。方法:以体外培养的人卵巢癌HO-8910为研究对象,不同剂量的TAM和DDP联合作用于人卵巢癌细胞HO-8910,用四甲基偶氮唑蓝比色(MTT)法检测细胞生长抑制率,用免疫组化SABC法检测增殖细胞核抗原(PCNA)在细胞中的表达。结果:TAM和DDP联合用药组与单用DDP组相比,大剂量TAM5.0μmol/L合用DDP及中剂量TAM1.0μmol/L合用大剂量DDP3.3μmol/L细胞生长抑制率有显著性差异(P<0.05);TAM浓度(≥1.0μmol/L)合用DDP时PCNA阳性率有显著差异(P<0.05)。结论:TAM和DDP联合用可有效抑制HO-8910细胞生长及增殖。     

茶多酚对成纤维细胞L929中鸟氨酸脱羧酶的抑制作用

目的:探讨茶多酚对成纤维细胞L929的增殖抑制作用及其作用机制。方法:体外培养小鼠成纤维细胞L929,加入茶多酚、二氟甲基鸟氨酸(DFMO)作用于细胞。用MTT法观察茶多酚对细胞增殖抑制作用,利用琼脂糖凝胶电泳和流式细胞技术检测细胞的调亡,RT鄄PCR技术检测鸟氨酸脱羧酶(ODC)基因的表达。结果:20μmol/L的茶多酚即能明显抑制L929细胞的增殖,促进细胞的调亡,其半数有效浓度为200μmol/L。RT鄄PCR显示细胞中ODCmRNA表达明显下降(P<0.05)。200μmol/L的茶多酚的抑制效果与5mmol/L的DFMO的作用效果相似。二者共同作用于细胞时,对ODC的活性抑制作用更强,抑制效果更佳。结论:茶多酚能通过抑制细胞中ODC的表达来抑制细胞的增殖。     

不同碘浓度对培养血管内皮细胞增殖的影响

目的：探讨不同碘浓度对人脐静脉血管内皮细胞增殖的影响。方法:体外培养人脐静脉血管内皮细胞株HUECV-304，在培养液中加入不同浓度的碘化钾，共分9组，分别为正常对照组及加碘组（0.5、1.0、2.0、3.0、4.0、5.0、6.0、8.0μmol/L），连续培养24h后，观察细胞形态改变并细胞计数，MTT比色法检测细胞活性。结果:0.5～4.0μmol/L剂量组在24h内内皮细胞计数和MTT检测均明显高于对照组，且细胞形态没有异常。而5.0μmol/L以上组，虽在8h内内皮细胞数目和MTT检测均明显高于对照组，但12h后内皮细胞数目和MTT检测均明显低于对照组；显微镜观察在4h始即可看见内皮细胞内有中毒颗粒出现，且随浓度增加和时间延长而增加，并出现明显的内皮形态变化。结论:碘对体外培养的内皮细胞有刺激增殖的作用，其作用与投碘的剂量及作用时间有关。     

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.     

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.     

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.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

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.