人表皮细胞在三种无血清培养基中的生长与增殖

对人原代表皮细胞在无血清培养基 A、B和 C中的生长过程进行动态观察 ,并于培养第 5 d用 MTT法和3H- Td R掺入法分别测定其生长和代谢情况。结果表明 :人原代表皮细胞在无血清培养基 A中生长 (OD值 :0 .6 38± 0 .0 33)和代谢 (COM:92 8± 46 .6 9)优于无血清培养基 B(OD值 :0 .5± 0 .0 37,CPM:740 .11± 43.2 9) ,差异有极显著意义 (MTT法 :P<0 .0 1,3H - Td R掺入法 :P<0 .0 1)。在无血清培养基 B中人原代表皮细胞在培养第 12 d仍未汇合联接成片 ;而在无血清培养基 C中细胞的生长增殖与无血清培养基 A相似 (P>0 .0 5 ) ,细胞在这二种培养基中于培养第 12 d均可汇合联接成片。     

杂交瘤细胞的无血清低蛋白培养

实现了杂交瘤细胞的体外无血清低蛋白培养。考察了血清浓度、基础培养基和接种密度对细胞生长的影响。在含5%血清培养基、1%血清培养基和无血清低蛋白培养基中适应生长的细胞,μ分别为0.68、0.45、0.44d-1,qGlc分别为13.4×10-9、13.1×10-9、19.2×10-9mmol/(cell·分别为39.4×10-9、44.1×10-9、37.7×10-9mg/(cell·d),YMAb/Xv分别为52.6×10-9、d),qMAb57.8×10-9、54.4×10-9mg/cell,YLac/Glc分别为2.0、1.95、2.0mmol/mmol。无血清培养中葡萄糖代谢途径不变,参与细胞维持代谢的葡萄糖比例增大。血清浓度降低,延迟期变长,最大活细胞密度下降。基础培养基影响细胞的最大活细胞密度,不影响生长速率。无血清培养基中细胞的接种密度选择在0.2×106～0.3×106cells/mL。     

表达vWF蛋白的重组BHK细胞的无血清培养

采用HADAMARD统计设计方法建立了适于重组BHK细胞培养和vWF蛋白表达的无血清培养基SFMA。用SFMA进行重组BHK细胞的批培养，细胞生长明显优于有血清培养(DMEM FBS(φPRS=0．05))和无血清培养基SFM-Ⅱ的培养，最大细胞密度可分别提高16．7％和40%。同时，在培养的96h，蛋白的表达水平比有血清培养提高了18．7%，SFMA维持培养48h的vWF蛋白的表达水平比SFM-Ⅱ提高了50％。     

无血清培养基培养人皮片表皮细胞的组织化学和超微结构的…

用无血清培养基培养人表皮细胞获得成功地并对培养皮片的人表皮细胞进行了组织化学和超微结构的观察。结果表明无血清培养基能促进表皮细胞的生长，增殖和分化。     

无或低血清条件下高压培养促进平滑肌细胞和内皮细胞生长

目的观察高压培养对无或低血清条件下平滑肌细胞和内皮细胞生长的影响。方法用无或0.5%血清培养基,在高于1个标准大气压（标准大气压设定为0 mmHg）30-180 mmHg压力下培养人脐静脉内皮细胞和大鼠血管平滑肌细胞。用台盼蓝染色细胞计数法和MTT评价细胞的生长情况。结果在低血清条件下,高压培养的血管内皮细胞生长速度明显快于标准大气压培养的血管内皮细胞,细胞计数和MTT结果显示高压培养比大气压培养细胞生长增加约30%。无血清大气压培养平滑肌细胞2天后,未见明显的活细胞,而高压培养大鼠平滑肌细胞仍能保持生长。结论无或低血清条件下,高压培养能保持血管平滑肌和血管内皮细胞的生长。     

脐带间充质干细胞无血清培养体系的筛选

目的：筛选培养脐带间充质干细胞的无血清培养基。方法：采集新生儿脐带标本,将脐带剪成组织碎块,随机分为A组、B组、C组,分别加入MesenCult、Ultraculture和AM-V 3种不同的无血清培养基进行培养。观察3组脐带原代细胞游出时间和细胞形态,检测细胞的增殖能力、分化能力和表面抗原的表达。结果：A组、B组、C组原代细胞从组织块长出的平均时间分别是17 d、6 d、7 d。显微镜下观察可见,从组织块游出的细胞散在分布,呈短梭形或多角形,形态饱满,折光性好,生长融合时A组和B组细胞呈旋涡状生长,细胞折光性好,大小均一,C组细胞细长,折光性稍差,无明显的旋涡状生长的特征。3组均表达CD105、CD90、CD73抗原,不表达CD34、CD45、HLA-DR抗原;3组各标志物的表达差异均无统计学意义(P>0.05)。3组间充质干细胞均具有向成脂细胞、成骨细胞分化的能力,C组分化能力弱于A组和B组。结论：B组培养体系用时较短,干细胞特性保持较好,价格适宜,可以作为大规模培养人间充质干细胞的首选培养基。     

人表皮细胞的培养方法探讨

目的 探讨适合临床推广、应用的人表皮细胞培养方法。方法 对比人表皮细胞在无血清培养基K—SFM及有血清培养基DMBM中的生长情况。结果 人表皮细胞在无血清培养基K—SFM中生长快，细胞形态好，不易被成纤维细胞污染。结论 应用无血清培养基K—SFM培养人表皮细胞，方法简便，适合临床推广应用。     

大鼠骨髓间充质干细胞的无血清培养与鉴定

目的探索大鼠骨髓间充质干细胞(MSCs)的体外分离纯化、培养、扩增及鉴定方法,为MSCs后续研究提供种子细胞。方法采用Percoll密度梯度离心法和贴壁法相结合分离纯化MSCs并传代,在无血清组和有血清组培养基DMEM/F12中培养,传代扩增。倒置相差荧光显微镜下观察两组细胞生长特性和形态,采用MTT(噻唑蓝)法检测增殖水平并绘制生长曲线,检测两组细胞周期。分别取两组细胞第三代MSCs,采用流式细胞仪检测细胞表型。结果无血清组培养基培养9~10 d有明显的细胞丛生长,略晚于有血清组的7~8 d;MTT测定生长曲线显示两组细胞增殖能力相似;流式细胞仪检测两组培养方式下细胞均表达CD29、CD54,不表达CD34、CD45;细胞周期检测显示无血清组G0/G1期细胞为68.0%,明显高于有血清组的46.4%,两组差异有显著性。结论无血清培养基的条件能较好地使细胞处于G0/G1期,保持更好的分化潜能及干细胞特性。     

逐步降低牛血清浓度培养人二倍体细胞试验的探讨

目的 逐步降低新生牛血清（以下简称牛血清）浓度培养人胚肺二倍体细胞，以适应无血清培养人胚肺二倍体细胞的需要。方法 应用美国生命公司无血清培养基（以下简称无血清培养基）和日水制药株式会社MEM培养基（以下简称MEN培养基），加入相同浓度牛血清配制的生长液，同时传代培养人胚肺二倍体细胞，随着每次细胞的传代培养而同时降低牛血清的浓度，观察人胚肺二倍体细胞是否保持其原有生物性能。结果 无血清培养基，牛血清降低的极限为0．5％，MEM培养基牛血清降低的极限为l％，细胞可传代培养。结论 人胚肺二倍体细胞在两种培养基配制的生长液中传代培养后，细胞形态有显著差异。随着牛血清浓度的逐渐降低，细胞形态无显著改变，活细胞数逐渐递减，细胞生长速度变慢，生长周期延长。     

无血清培养人肝癌细胞增生率的变化和bFGF在细胞中的表达

采用无血清培养体系 ,研究肿瘤细胞自分泌调控机制。将人肝癌细胞培养在无血清无外源分裂因子培养基中 ,采用细胞原位计数法和免疫组织化学染色法 ,观察不同时相人肝癌细胞增生率的变化以及碱性成纤维细胞生长因子 (bFGF)的表达情况。结果 :人肝癌细胞生长良好 ,其增生速度与其分泌的bFGF量成正比。提示 :肝癌细胞在无外源生长因子的条件下通过分泌bFGF ,以自分泌和旁分泌的方式作用于自身和相邻细胞 ,促进细胞生长和增生。     

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…     

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.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.