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1.
目的:利用激光扫描共聚焦显微镜(LSCM)观察IL-1β及TSH对鼠甲状腺FRTL-5细胞内Ca2+的影响,以进一步了解IL-1β对甲状腺细胞的作用及机制。方法:将待测FRTL-5细胞以Fluo-3负载,以LSCM扫描测定细胞内Ca2+,分别加入不同浓度的TSH或IL-1,观察细胞内Ca2+变化。结果:(1)TSH可使细胞内Ca2+的水平上升,与TSH浓度有关。(2)IL-1β可降低FRTL-5细胞内基础Ca2+和TSH刺激的细胞内Ca2+的水平。结论:TSH对甲状腺细胞磷酸肌醇/钙离子系统有刺激作用,Ca2+作为第二信使可介导TSH的效应。I-1β可以通过抑制甲状腺细胞磷酸肌醇/钙离子系统而发挥其抑制效应  相似文献   

2.
目的:研究γδT细胞的体外生存期,抗白血病活性及可能引起的移植物抗宿主反应(GVHD),为自体及异体移植后输注γδT细胞诱导移植物抗白血病反应作前期基础研究。方法:对移植患者采集物用GM-CSF+IL-4进行培养,使其分化和扩增为树突状细胞(DC);然后用DC和细胞因子IL-2刺激其CD4^+T细胞扩增后,协同DC共同刺激γδT细胞扩增,进而用MTT比色法和CFU-GM集落培养研究其功能。结果:γ  相似文献   

3.
赵勇  曹雪涛 《中华医学杂志》1997,77(10):732-736
目的探讨粒细胞-巨噬细胞集落刺激因子(GM-CSF)诱导小鼠红白血病细胞分化过程中,树突状细胞的产生及其抗原提呈功能的变化。方法采用流式细胞仪分析、电镜技术和4小时51Cr释放法等,进一步观察了GM-CSF的诱导分化作用。结果100ng/mlGM-CSF处理3天后的FBL-3细胞,树突状细胞的特异性标志33D1和NLDC145的表达阳性率显著升高;同时,MHC-Ⅱ、B7-1、B7-2、I-CAM-1、VCAM-1和CD40表达水平均增加;扫描电镜显示GM-CSF处理的FBL-3细胞,表面出现许多树突状突起,透射电镜下可见细胞浆内有丰富的线粒体,核呈分叶状。同时,能够显著刺激同种异体T淋巴细胞增殖,促进IL-2的产生;可显著提高细胞毒性T淋巴细胞(CTL)细胞对FBL-3细胞的特异性杀伤活性。结论GM-CSF诱导的红白血病细胞可向树突状细胞分化,本身具有抗原提呈功能。  相似文献   

4.
P物质对大鼠脾细胞免疫功能的影响   总被引:5,自引:0,他引:5  
目的:研究P物质(SP)对脾细胞免疫功能的调节作用。方法:采用3H-TdR掺入法、放射免疫测定和流式细胞仪等方法,检测了SP对体外培养的大鼠脾细胞的增殖和分泌IL-2、IL-6、TNF功能及T细胞表型表达的影响。结果:SP能明显刺激脾细胞的增殖,其中浓度为1×10- 4m m ol/L时作用最强;SP能促进T细胞CD分子的表达,使CD4+ /CD8+ 升高;SP能显著促进脾细胞分泌IL-2,对脾细胞分泌IL-6具有抑制作用,而对分泌TNF无作用。结论:证实了SP是具有广泛的免疫调节作用的一种神经肽。  相似文献   

5.
目的建立从人外周血分离、纯化、培养、扩增树突状细胞(DC)前体的方法,研究细胞因子对DC体外增殖、分化成熟的影响。方法人外周血经血细胞分离仪及Ficol、Percol等不连续密度梯度离心获得的含DC前体细胞组分用重组人粒细胞/巨噬细胞集落刺激因子(hrGM-CSF)培养或用GM-CSF及白细胞介素-4(IL-4)联合培养;光镜及电镜观察及ABC法免疫细胞化学染色。结果分离的DC前体经1周左右时间培养,细胞数量可扩增20~30倍,纯度达90%以上,GM-CSF与IL-4联合培养所得到的DC数量约为用GM-CSF培养的1.5倍。DC具有典型的树枝状或裙褶状突起,并表达高水平的HLA-DR,其CD14、CD19、CD3的表达均为阴性。结论用GM-CSF和IL-4联合作用更能促进DC的体外扩增及分化。  相似文献   

6.
Zhong C  Li WZ  Lü L 《中华医学杂志》1999,79(3):174-177
目的 观察β型转化生长因子(TGFβ1)基因修饰的B10小鼠骨髓树突关细胞(DC)在C3H小鼠体内的迁移和存活,以探讨DC生物学特性与移植耐受性的关系。方法 从B10小鼠骨髓分离DC前体细胞,在粒细胞-巨噬细胞集落刺激因子+β型转化生长因子(GM-CSF+TGFβ)条件下培养增殖(GC1)并转导Ad-LacZ(Dc2)或Ad-TGFβ1(DC3),每组5×10^5个细胞注入G3H小鼠后掌皮下,分别  相似文献   

7.
应用骨髓长期培养法研究了HGFs联合应用对LTBMC中造血干/祖细胞的增殖、分化的影响,结果显示,在LTBMC中,含有HGFs(IL-2+IL-6+G-CSF+GM-CSF+Epo)的扩增组与对照组相比,HGFs能显著地扩增HSCs,在第一周,CFU-GM,CFU-E和BFU-E总数分别扩增18.09-16.59倍、10.26-8.48和14.99-12.78倍,而累积扩增倍数分别达36.19-6  相似文献   

8.
应用杂交瘤技术,用重组人G-CSF(rhG-CSF)免疫Balb/c小鼠,然后将其脾脏细胞与小鼠骨髓瘤细胞NS-1融合,成功地获得了多种能够分泌抗rhG-CSF单克隆抗体(McAb)的杂交癌细胞。对其中的2株杂交瘤细胞2A6和2C2分泌McAb的研究表明,它们能够特异性地和rhG-CSF结合,而与重组的人GM-CSF、IL-CSF、IL-2、IL-2α和TNF细胞因子无交叉反应,为抗G-CSF特异性McAb。这些杂交瘤细胞经反复冻存和复苏后,仍能稳定地分泌McAb。  相似文献   

9.
目的:建立体外诱导和扩增人外周血树突状细胞(DC) 的方法,并分析其生物学特性。方法:造血动员后外周血单个核细胞经贴壁去除悬浮细胞,加入细胞因子(IL-4、GM- CSF和TNF-α)培养8 天。用流式细胞仪分析细胞的表型,经ELISA法测定其培养上清中的IL- 12 ,并将诱导的树突状细胞与脐带血原始T(naive T) 细胞混合培养,用3H- TdR掺入法测定细胞的增殖指数。结果:贴壁的造血动员后外周血单个核细胞在体外经细胞因子诱导培养后,高表达人树突状细胞分化抗原CD1a(89 .1% )、CD40(99 .8% )、CD80(95 .1% )、CD83(45 .7% )、HLA- DR(97.6% ),同时所获的DC能分泌IL-12 和可有效地激活脐带血原始T细胞并促其增殖(SI= 6.92) 。结论:采用造血动员的外周血经体外贴壁去除非粘附细胞,再经过细胞因子序贯培养,无需纯化CD34 + 细胞,能获得高纯度( >80% )和具有功能性的DC细胞。  相似文献   

10.
经重组白细胞介素2(rIL-2)和胸腺因子D(TFD)培养前后的人脑胶质瘤浸润淋巴细胞(GIL)的表型及抗自体瘤细胞活性变化。(1)GIL可被分离,培养后可增值;(2)新鲜GIL主要为T淋巴细胞,其中CD+8细胞多于CD4细胞,随培养时间延长呈相反变化;(3)新鲜GIL活性很弱,培养后很强;(4)TFD可能只有增强rIL-2的激活作用。提示GIL可望作为理想的效应细胞用于脑胶质瘤的治疗。  相似文献   

11.
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…  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

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16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

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20.
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…  相似文献   

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