人脐静脉内皮细胞的体外分离培养及鉴定

目的探讨人脐静脉内皮细胞的原代培养方法,提高体外分离培养血管内皮细胞的成功率。建立血管内皮细胞培养模型,为体外研究血管内皮细胞提供实验基础。方法取2根脐带(至少20 cm)冲净淤血,采用加工穿刺针固定脐静脉灌注消化液,一根用0.2%胶原酶Ⅱ,另一根用0.1%胶原酶Ⅰ和0.25%胰酶等比混合消化液,比较两种酶的消化效果。收集细胞并用含有10 ng/mL的VEGF的培养基中培养,观察细胞的生长及传代。并在倒置显微镜下观察细胞的形态学特点,同时用免疫组织化学的方法对所得细胞进行鉴定。用流式细胞术观察细胞周期。结果两种消化酶方法均获得了相当数量的人脐静脉内皮细胞,胶原酶Ⅱ的消化效果稍优于混合消化酶,且比较理想的消化时间均为13 min,细胞接种后4～5 h开始贴壁生长,1周左右可生长成单层,光镜下呈多角形,"铺路石"样排列,免疫组织化学法可见内皮细胞胞浆中人第Ⅷ因子相关抗原呈阳性反应。细胞周期显示约有50.6%的细胞处于G0/G1期。结论胶原酶Ⅱ和胶原酶Ⅰ与胰酶等比混合消化液灌注法是获得脐静脉内皮细胞的一种可取方法,而胶原酶是分离培养脐静脉内皮细胞的首选消化液,成功率高,可靠性大,可成功构建体外研究血管内皮细胞的模型。     

人脐静脉内皮细胞分离培养的改进及其鉴定

目的 改进静脉内皮细胞原代培养的方法，提高体外培养血管内皮细胞的成功率。方法 采用5号带柄一次性静脉输液针灌注消化液，分别用0．125％、0．25％胰蛋白酶和0．1％胶原酶消化脐静脉内膜，比较三种酶液消化的结果，并在倒置相差显微镜下观察其形态特点，同时用免疫组织化学的方法对所得细胞进行鉴定。结果 0．125％、0．25％胰蛋白酶和0．1％胶原酶的最佳消化时间分别为15min，10min，12min，倒置相差显微镜下观察内皮细胞为单层生长，鹅卵石样镶嵌排列。免疫组织化学检测表明细胞内有Ⅷ因子相关抗原。结论 胶原酶是分离培养脐静脉内皮细胞的首选消化液，且0．1％胶原酶消化12min获得的细胞数量多，成活率高。     

人脐静脉内皮细胞在培养中呈现的一种特殊光镜结构的观察分析

目的：光镜下观察分析人脐静脉内皮细胞在培养过程中的一种特殊结构。方法：经胶原酶消化,进行人脐静脉内皮细胞的原代培养,Giemsa染色制得玻片标本。结果：在透射电镜观察及Ⅷ因子免疫组化检测证实的基础上,光镜下观察培养至6天的标本,可见多个细胞突起汇合,形成“管状”结构。结论：人脐静脉内皮细胞在培养中的这种光镜结构,有别于平滑肌细胞和成纤维细胞。     

人脐静脉内皮细胞的继代培养

目的：研究人血管内皮细胞在体外长期传代培养的方法，方法；采用０．１２５％胰酶ＥＤＴＡ液灌注冲洗法，从人脐静脉中分离在管内皮细胞（ＨＵＶＥＣ）；用０．０２％ＥＤＴＡ消化传代ＥＣ，用新生小牛视网膜提取物（ＲＤＳ）作为生长促进剂。应用光镜，电镜，免疫组化等方法对原代和继代内皮细胞进行鉴定和生长特性观察，结果：人脐静脉内皮细胞继代培养３６代，原代和继代内皮细胞胞浆中含有Ｗ－Ｐ小体和Ⅷ因子相关抗原；传代ＥＣ     

人脐静脉内皮细胞的培养及鉴定

目的：摸索人脐静脉内皮细胞体外培养的方法和注意事项。方法：采用0．25％胰蛋白酶分离人脐静脉内皮细胞,含20％FBSDMEM养基培养,待细胞80％融合后,以O．25％胰蛋白酶消化传代,并以倒置显微镜观察内皮细胞的生长情况,以免疫组化方法对内皮细胞进行鉴定。结果：原代培养的细胞在接种4h后开始贴壁生长,3－5天后融合成单层,倒置显微镜下观察细胞呈铺路石状排列,免疫组化显示人第Ⅷ因子相关抗原阳性。结论：用胰蛋白酶消化脐静脉可获得内皮细胞且成活率较高,是一种可靠的方法。     

人脐静脉内皮细胞的培养及鉴定

目的　探讨新生儿脐静脉内皮细胞的培养及鉴定方法 ,建立血管内皮细胞培养模型 ,为体外研究血管内皮细胞提供实验手段。方法　采用胶原酶Ⅱ灌流消化法培养人脐静脉内皮细胞 ,当原代培养细胞 80 %以上汇合后 ,用胰蛋白酶消化传代 ;根据细胞生长特点、形态特征、细胞表型和分泌蛋白流式细胞术 (FM术 )免疫荧光检查对细胞进行鉴定。结果　种植在培养瓶中的内皮细胞 12小时贴壁生长 ,48～ 72小时生长最快 ,7～ 10天汇合。内皮细胞呈接触抑制生长、呈鹅卵石样外观 ,FM术检测CD3 1和VⅢ -R -Ag均为阳性表达。 结论　消化酶灌注脐静脉消化内皮细胞是获取血管内皮细胞的一种好方法 ,可靠性大 ,成功率高 ,可以构建体外研究血管内皮细胞的模型     

人脐静脉内皮细胞的分离培养和冻存

目的研究体外分离、培养、冻存人脐静脉内皮细胞的有效方法以获得大量人脐静脉内皮细胞，为构建含血管的组织工程皮肤提供种子细胞。方法新鲜脐带内灌注胶原酶消化，获得内皮细胞，用含20％胎牛血清的M199液进行培养。倒置显微镜观察细胞形态，结合Ⅷ因子免疫组化鉴定细胞来源。内皮细胞加入10％甘油的冻存液，分别置于渡氮保存1周和4周，复苏后血球计数板计数，绘制生长曲线。结果脐静脉内灌注胶原酶法可获取高纯度的内皮细胞，与未冻存细胞相比，复苏的细胞活力保持在80％以上，复苏后生长曲线与未冻存细胞相似。结论脐静脉灌注酶消化法可获取大量高纯度的内皮细胞。冻存的内皮细胞复苏后仍保持较高的体外增殖能力，可作为制备含血管的组织工程皮肤的种子细胞来源。     

人脐静脉内皮细胞的原代培养及鉴定

目的:探讨新生儿脐静脉内皮细胞的培养及鉴定方法,建立血管内皮细胞培养模型,为体外研究血管内皮细胞提供实验手段。方法:采用0.1%Ⅱ型胶原酶分离脐静脉内皮细胞,于M199培养基(含15%胎牛血清,促内皮生长因子1%,青霉素100u/ml,链霉素100mg/ml)内培养,待细胞80%融合后,以0.25%胰蛋白酶和0.02%EDTA消化传代,并以倒置光显微镜观察内皮细胞生长情况,以免疫荧光方法对内皮细胞进行鉴定。结果:原代培养细胞在接种2h后开始贴壁生长,倒置光显微镜下观察细胞呈鹅卵石状排列,免疫荧光显示细胞胞浆内Ⅷ因子相关抗原阳性。结论:用胶原酶灌注消化脐静脉是获得内皮细胞的一种较可靠的方法。     

人脐静脉内皮细胞体外培养方法

目的探索人脐静脉内皮细胞体外培养方法和注意事项。方法采用0.1%I型胶原酶分离脐静脉内皮细胞,于RPMI-1640和20?S内培养,待细胞80%融合后,以0.25%胰蛋白酶和0.02?TA消化传代,并以倒置光显微镜观察内皮细胞生长情况,以免疫组化方法对内皮细胞进行鉴定。结果原代培养细胞在接种4 h后开始贴壁生长,5~7 d后融合成单层,倒置光显微镜下观察细胞呈鹅卵石状排列,有接触抑制现象,免疫组化显示细胞胞浆内Ⅷ因子相关抗原阳性。结论用胶原酶灌注消化脐静脉是获得内皮细胞的一种较可靠的方法,成活率较高,培养的多个环节均需关注。     

人脐静脉血管内皮细胞培养、冻存、复苏与鉴定

目的：探讨人脐静脉血管内皮细胞（humanumbicicalveinendothelialcell,HUVEC）体外分离、培养、冻存、复苏与鉴定的可靠方法。方法：采用改良的胶原酶灌注消化法对HUVEC进行分离、培养与鉴定,并遵循”慢冻快复”的原则进行冻存与复苏,同时使用Ⅷ因子相关抗原染色法进行鉴定。结果：分离的HUVEC生长良好,细胞总数可达I-3×10^2。Ⅷ因子相关抗原染色鉴定结果为95％以上阳性,冻存后复苏的细胞活性超过90％。结论：HUVEC可以从脐带获得并通过原代培养成为细胞系,获得了人脐静脉血管内皮细胞体外培养、冻存、复苏与鉴定的可靠方法。     

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…     

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.     

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.     

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.     

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.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…