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干细胞学术探讨

干细胞学术探讨的相关文献在2013年到2013年内共计69篇,主要集中在基础医学 等领域,其中期刊论文69篇、专利文献106158篇;相关期刊1种,包括中国组织工程研究等; 干细胞学术探讨的相关文献由101位作者贡献,包括吴岩、熊杰、赵庆华等。

干细胞学术探讨—发文量

期刊论文>

论文:69 占比:0.06%

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论文:106158 占比:99.94%

总计:106227篇

干细胞学术探讨—发文趋势图

干细胞学术探讨

-研究学者

  • 吴岩
  • 熊杰
  • 赵庆华
  • 黄国志
  • 丁维进
  • 任超
  • 侯兆蕾
  • 侯婧
  • 侯红
  • 农晓琳

干细胞学术探讨

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    • 王凯; 焦红亮; 李建斌; 吴宪鸣
    • 摘要: BACKGROUND:Umbilical cord blood as a source of hematopoietic stem cel s has become a hot topic. Adjuvant therapy of umbilical cord blood transfusion has been used in China to correct renal anemia of uremia patients. OBJECTIVE:To evaluate the efficacy and safety of umbilical cord blood mesenchymal stem cel s in the treatment of renal anemia, and to compare with the effects of different sources of mesenchymal stem cel s with different transplantation methods on the treatment of kidney diseases. METHODS:A retrospective analysis was conducted on six renal anemia patients in the Department of Outpatient, Henan Red Cross Blood Center between January 2010 and December 2012. The experiment was approved by Medical Ethics Committee, six patients were informed consent for treatment programs, and parturients and their families have signed the informed consent. The newborns umbilical cord blood of 80-140 mL were col ected with closed sterile plastic blood bags, and then the separated umbilical cord blood mesenchymal stem cel s were transfused into the renal anemia patients through the superficial vein in the back of the hand with the number of≥1×108/copy, two copies per time, and re-transfused after 4 days, a total of three times. The blood hematocrit, hemoglobin, red blood cel s in urine, renal blood flow changes were observed before and after treatment. RESULTS AND CONCLUSION:The hemoglobin, blood hematocrit, red blood cel s in urine and renal blood flow were significantly increased before and after treatment (P<0.05). Transfusion of multiple copies of umbilical cord blood mesenchymal stem cel s through the superficial vein in the back of the hand is convenient and safe, which is considered as a new method for the treatment of renal anemia. But there are certain limitation in the data and the conclusion as the clinical research was designed as self-control, so further confirm is needed.%  背景:脐血作为造血干细胞来源已成为研究热点,脐血输注辅助治疗已在国内使用,临床已将脐血输注用于纠正尿毒症患者的肾性贫血。目的:评价脐血间充质干细胞移植治疗肾性贫血的有效性及安全性,并与不同来源的间充质干细胞不同移植途径对肾脏病的治疗作用进行比较。方法:回顾分析2010年1月至2012年12月在河南省红十字血液中心门诊部收治的6例肾性贫血患者,实验经医学伦理委员会批准,6例患者对治疗方案均知情同意,产妇及其家属均签署知情同意书,以无菌塑料采血袋密闭式采集足月新生儿脐血80-140 mL,分离获得的人脐血间质干细胞通过手背浅静脉输注入肾性贫血患者体内,细胞数≥1×108/份,2份/次,间隔4 d后再次输注,共3次,观察治疗前后血红细胞压积、血红蛋白、尿中红细胞、肾血流量变化。结果与结论:治疗前后患者的血红蛋白、血红细胞压积、尿中红细胞、肾血流量显著增加(P<0.05)。经手背浅静脉多份输注脐血间充质干细胞,方法简便且安全有效,是治疗肾性贫血的一种新方法。但此次临床研究设计为自身前后对照,数据结论具有一定局限性,需进一步验证。
    • 胡雅光
    • 摘要: 背景:干细胞移植到受损的心脏组织,可以大量分化为心肌细胞,这项研究为缺血性心脏病治疗带来新的希望。目的:探讨干细胞移植治疗缺血性心脏病的可行性与安全性。方法:分析干细胞移植治疗缺血性心脏病安全性和可行性的多种试验方法。REPAIR-AMI试验是一项分析急性心肌梗死后即刻冠脉内移植骨髓祖细胞治疗效果的随机双盲、安慰剂对照的多中心研究;MAGICCell-3-DES试验是评价粒细胞集落刺激因子动员的干细胞疗法的安全性和冠脉内注射动员的外周血干细胞对急性心肌梗死和陈旧性心肌梗死的效果;BOOST试验是心肌梗死后经冠脉移植自体骨髓细胞的随机对照研究。PROTECT-CAD试验是一项随机、对照的直接将干细胞注入心肌治疗慢性缺血性心肌病的临床试验。结果与结论:干细胞移植可以改善左心室的收缩功能和舒张功能以及冠脉血流储备,相关研究也得到验证。对于干细胞移植治疗缺血性心脏病,可以增加左室射血分数,临床事件较少,在药物洗脱支架治疗的基础上,干细胞治疗并不增加再狭窄风险。干细胞移植治疗缺血性心脏病安全可行,未来还需要进行大样本、长时间的大规模多中心的随机对照研究,来进一步评价其疗效和风险。
    • 胡雅光
    • 摘要: BACKGROUND:The stem cel s transplanted into the damaged heart tissues can differentiate into cardiomyocytes, which bring new hope for the research of ischemic heart disease. OBJECTIVE:To explore the feasibility and safety of stem cel transplantation for the treatment of ischemic heart disease. METHODS:Various experimental methods to the feasibility and safety of stem cel transplantation for the treatment of ischemic heart disease were analyzed. REPAIR-AMI experiment was a randomized and double-blind and placebo-control ed multi-center study that used to analyze the therapeutic effect of intracoronary transplantation of bone marrow progenitor cel s immediately after acute myocardial infarction. MAGIC Cel-3-DES experiment was used to evaluate the safety of granulocyte colony-stimulating factor mobilized stem cel therapy and the effect of intracoronary injection of mobilized peripheral blood stem cel s on the treatment of acute myocardial infarction and old myocardial infarction. BOOST experiment was the randomized control ed study on autologous bone marrow cel transplantation through coronary vein after myocardial infarction. PROTECT-CAD experiment was the randomized control ed clinical trial about the direct injection of stem cel s into the myocardial for the treatment of ischemic heart disease. RESUTLS AND CONCLUSION:Stem cel transplantation may improve the left ventricular systolic function and left ventricular diastolic function as wel as the coronary flow reserve, and the related studies have been confirmed. Stem cel transplantation for the treatment of ischemic heart disease can increase the left ventricular ejection fraction. As the less clinical accident, stem cel therapy cannot increase the risk of restenosis based on the treatment of drug-eluting stents. It is safe and feasible of stem cel transplantation for the treatment of ischemic heart disease. Large sample, long scale and multi-center randomized control ed studies are needed to further evaluate the effect and risk of stem cel transplantation.%  背景:干细胞移植到受损的心脏组织,可以大量分化为心肌细胞,这项研究为缺血性心脏病治疗带来新的希望。目的:探讨干细胞移植治疗缺血性心脏病的可行性与安全性。方法:分析干细胞移植治疗缺血性心脏病安全性和可行性的多种试验方法。REPAIR-AMI 试验是一项分析急性心肌梗死后即刻冠脉内移植骨髓祖细胞治疗效果的随机双盲、安慰剂对照的多中心研究;MAGIC Cel-3-DES试验是评价粒细胞集落刺激因子动员的干细胞疗法的安全性和冠脉内注射动员的外周血干细胞对急性心肌梗死和陈旧性心肌梗死的效果;BOOST 试验是心肌梗死后经冠脉移植自体骨髓细胞的随机对照研究。PROTECT-CAD试验是一项随机、对照的直接将干细胞注入心肌治疗慢性缺血性心肌病的临床试验。结果与结论:干细胞移植可以改善左心室的收缩功能和舒张功能以及冠脉血流储备,相关研究也得到验证。对于干细胞移植治疗缺血性心脏病,可以增加左室射血分数,临床事件较少,在药物洗脱支架治疗的基础上,干细胞治疗并不增加再狭窄风险。干细胞移植治疗缺血性心脏病安全可行,未来还需要进行大样本、长时间的大规模多中心的随机对照研究,来进一步评价其疗效和风险。
    • 王凯; 焦红亮; 李建斌; 吴宪呜
    • 摘要: 背景:脐血作为造血干细胞来源已成为研究热点,脐血输注辅助治疗已在国内使用,临床已将脐血输注用于纠正尿毒症患者的肾性贫血。目的:评价脐血间充质干细胞移植治疗肾性贫血的有效性及安全性,并与不同来源的间充质干细胞不同移植途径对肾脏病的治疗作用进行比较。方法:回顾分析2010年1月至2012年12月在河南省红十字血液中心门诊部收治的6例肾性贫血患者,实验经医学伦理委员会批准,6例患者对治疗方案均知情同意,产妇及其家属均签署知情同意书,以无菌塑料采血袋密闭式采集足月新生儿脐血80-140mL,分离获得的人脐血间质干细胞通过手背浅静脉输注入肾性贫血患者体内,细胞数≥1×108/份,2份/次,间隔4d后再次输注,共3次,观察治疗前后血红细胞压积、血红蛋白、尿中红细胞、肾血流量变化。结果与结论:治疗前后患者的血红蛋白、血红细胞压积、尿中红细胞、肾血流量显著增加(P〈0.05)。经手背浅静脉多份输注脐血间充质干细胞,方法简便且安全有效,是治疗肾性贫血的一种新方法。但此次临床研究设计为自身前后对照,数据结论具有一定局限性,需进一步验证。
    • 林同香; 林益
    • 摘要: 背景:诱导多能干细胞可以绕过胚胎干细胞存在的伦理学问题,已成为目前干细胞研究的热点问题。目的:探讨诱导多能干细胞的研究进展以及需要解决的问题。方法:回顾分析诱导多能干细胞的发现,近年来的研究过程,目前存在的问题。检索汤森路透WebofScience数据库关于诱导多能干细胞和p53基因研究相关的文献进行分析。结果与结论:近年来国内外学者对诱导多能干细胞进行大量研究。例如,日本正在筹备建立干细胞库,将为视网膜等疾病治疗提供基础。但是,在诱导多能干细胞能广泛应用之前,还面临许多安全问题,其中p53相关的功能性研究是必不可少的紧迫问题,p53基因中的其他成员p73也参与诱导多能干细胞的产生和分化也需要进一步深入。关于p53功能的发现将伴随着干细胞研究,促进再生医学的深入和发展。
    • 林同香; 林益
    • 摘要: 背景:诱导多能干细胞可以绕过胚胎干细胞存在的伦理学问题,已成为目前干细胞研究的热点问题。目的:探讨诱导多能干细胞的研究进展以及需要解决的问题。方法:回顾分析诱导多能干细胞的发现,近年来的研究过程,目前存在的问题。检索汤森路透Web of Science数据库关于诱导多能干细胞和p53基因研究相关的文献进行分析。结果与结论:近年来国内外学者对诱导多能干细胞进行大量研究。例如,日本正在筹备建立干细胞库,将为视网膜等疾病治疗提供基础。但是,在诱导多能干细胞能广泛应用之前,还面临许多安全问题,其中p53相关的功能性研究是必不可少的紧迫问题,p53基因中的其他成员p73也参与诱导多能干细胞的产生和分化也需要进一步深入。关于p53功能的发现将伴随着干细胞研究,促进再生医学的深入和发展。%BACKGROUND:Induced pluripotent stem cel s can bypass the ethical issues of embryonic stem cel s, and become the hotspot of stem cel research. OBJECTIVE:To explore the research progress and problems of induced pluripotent stem cel s. METHODS:A retrospective analysis on the findings, research progress and problems of induced pluripotent stem cel s in recent years was performed. The Thomson Reuters Web of Science was searched for the articles related to the induced pluripotent stem cel s and p53 gene. RESULTS AND CONCLUSION:In recent years, domestic and foreign scholars have conducted a lot of researches on induced pluripotent stem cel s. For example, a Japanese group is establishing the stem cel bank to provide a basis for the treatment of retinal diseases. However, the safety issues of induced pluripotent stem cel s need to be solved before routine cel treatment application, in which the functional research of related p53 gene is one of the essential concerns. The other member of p53 gene, p73 gene, also participates in the generation and differentiation of induced pluripotent stem cel s, and the in-depth studies are needed. The finding of p53 gene function wil promote the in-depth development of regenerative medicine and translational medicine.
    • 张菁; 应艳琴; 罗小平; 张义成; 肖毅
    • 摘要: 背景:X-连锁肾上腺脑白质营养不良一直是国内外遗传界研究的热点,对此病的治疗一直缺乏有效的手段。目的:分析2例异基因造血干细胞移植治疗X-连锁肾上腺脑白质营养不良的疗效和并发症。方法:对华中科技大学同济医学院附属同济医院2例进行异基因造血干细胞移植的X-连锁肾上腺脑白质营养不良患儿进行综合分析及基因检测,观察移植成功情况及移植后并发症的发生。结果与结论:2例均为儿童脑型X-连锁肾上腺脑白质营养不良。1例异基因造血干细胞移植成功,但发生严重的移植相关并发症,另1例移植失败。异基因造血干细胞移植是目前治疗早期儿童脑型X-连锁肾上腺脑白质营养不良的有效方法,但最终的疗效受移植是否成功及移植后并发症等因素的影响,且异基因造血干细胞移植的疗效尚需要长期的观察。
    • 曲绍政; 李书忠; 高甲科; 张金锋
    • 摘要: BACKGROUND: Osteosarcoma is the most common bone primary malignant tumors, and the occurrence of osteosarcoma may relate with osteosarcoma stem cel s. OBJECTIVE: To evaluate the isolation, culture and identification method of osteosarcoma stem cel s, to investigate the expression of relative tumor markers. METHODS: The osteosarcoma stem cel s were isolated and cultured with magnetic activated cel sorting method under serum-free condition and serum-free joint antineoplastic condition, in order to sort Stro-1 positive and CD133 positive osteosarcoma stem cel s. The expression level and tumorigenic properties of CD133, Oct3 / 4 and Nanog markers of osteosarcoma cancer stem cel s were tested with immunofluorescence staining and Western blotting methods. RESULTS AND CONCLUSION: Suspended cel condensation could be seen in the osteosarcoma stem cel s after culture for 2-10 days, the proliferation incubation period was about 24 hours, and the Stro-1 positive stem cel s could form the suspended cel condensation, while the Stro-1 negative stem cel s could not form the suspended cel condensation. In addition, osteosarcoma stem cel s could highly express Oct3/4, Nanog and CD133, the CD133-positive osteosarcoma stem cel s could highly express CD133 molecule with strong invasiveness, while the CD133 negative cel s could not express CD133 molecule and the invasiveness was weak. Celecoxib could inhibit the formation of osteosarcoma stem cel s to some extent, and could reduce the expression of tumor angiogenic blood vessels and vascular endothelial growth factor.%  背景:骨肉瘤是最常见的骨原发性恶性肿瘤,其发生可能与骨肉瘤干细胞有关。目的:评估骨肉瘤干细胞分离、培养和鉴定方法以及其相关肿瘤标记物的表达。方法:在无血清条件下以及无血清联合抗肿瘤药物的条件下应用免疫磁珠分选法对骨肉瘤干细胞进行分离、培养,分选出 Stro-1阳性、CD133阳性骨肉瘤干细胞,采用免疫荧光染色、蛋白质印迹法等检测骨肉瘤肿瘤干细胞标记物 CD133、Oct3/4以及 Nanog 等的表达水平以及致瘤性能。结果与结论:骨肉瘤干细胞在接种培养2-10 d 后形成悬浮细胞球,增殖潜伏期约为24 h,Stro-1阳性干细胞能够形成悬浮细胞球,Stro-1阴性细胞则不能形成悬浮细胞球。此外,骨肉瘤干细胞还能高表达Oct3/4、Nanog 和 CD133等,CD133阳性骨肉瘤干细胞高表达 CD133分子,侵袭力更强,而 CD133阴性细胞则不能表达 CD133分子,侵袭力相对较弱。塞来昔布对骨肉瘤干细胞的形成具有一定程度的抑制作用,能够降低肿瘤新生血管中血管内皮生长因子的表达。
    • 董平; 肖苒
    • 摘要: 背景:糖皮质激素是有效的免疫抑制和抗炎症药物而广泛应用于临床,然而长期服用后也会引起一些不良反应如骨质疏松症。糖皮质激素通过促进成骨细胞与骨细胞的凋亡,同时抑制间充质干细胞向成骨细胞分化,导致成骨细胞数量减少;然而在一定的条件下,糖皮质激素又能够促进间充质干细胞表达成骨细胞标志基因诱导其向成骨方向分化。目的:对以地塞米松为代表的糖皮质激素在间充质干细胞成骨分化中发挥的作用以及可能的分子机制进行综述。方法:由第一作者检索PubMed数据库1978至2012年有关地塞米松和间充质干细胞成骨分化的文献,英文关键词“Mesenchymal stem cell, dexamethasone, osteogenesis, osteoporosis, Runx2, BMP,Noggin, GILZ, glucocorticoid receptor”以不同的组合方式查找,排除重复性的研究,最终保留55篇进行归纳综述。结果与结论:地塞米松能够调节Runx2,Noggin以及亮氨酸拉链蛋白等基因调控间充质干细胞成骨分化。当糖皮质激素作用于间充质干细胞时,可能由糖皮质激素受体介导其生理作用,也可能在糖皮质激素与其受体结合之前就受到11β-羟甾类脱氢酶的调节。另外,生理剂量(10-88mol/L)的地塞米松能促进问充质干细胞成骨分化,药理剂量(≥10-7mol/L)有抑制作用。
    • 吕炜亮; 廖毅; 童庭辉
    • 摘要: BACKGROUND: Estrogen is closely related to normal bone metabolism in human body and provides favorable conditions for osteogenic differentiation of stem cel s. OBJECTIVE: To summarize the application, mechanism of action, safety, efficacy, advantages/disadvantages, and characteristics of estrogen in inducing osteogenic differentiation of various stem cel s. METHODS: A computer-based online retrieval of PubMed, CNKI and Wanfang databases was performed for searching papers using the key words “estrogen, bone marrow mesenchymal stem cel s, adipose-derived stem cel s, embryonic stem cel s, osteogenesis” in English and Chinese. RESULTS AND CONCLUSION: Fifty papers were suitable for final analysis. Estrogen is the most important endocrine hormone. It is a safe and effective inducing agent used in the osteogenic differentiation of stem cel s, promotes the proliferation and differentiation of stem cel s and exerts different actions on stem cel s. Estrogen directly influences on the estrogen receptor of the stem cel s and also directly influences cel proliferation and differentiation by inducing the production of various cytokines. Nevertheless, there are some uncertainties, including estrogen level, estrogen-target gene expression and transcription on stem cel s, and cel -scaffold reconstruction, which should be further studied.%  背景:雌激素与人体正常骨代谢有紧密联系,并可以为干细胞诱导成骨提供有利条件。目的:文章就雌激素在多种干细胞诱导成骨中的应用情况及其作用机制、安全性、效果、优缺点、突出特性等进行综述。方法:由第一作者应用计算机检索 PubMed 数据库,以“estrogen,bone marrow mesenchymal stem cel s,adipose derived stem cel s,embryonic stem cel s,osteogenesis”为检索词;应用计算机检索CNKI 数据库、万方数据库以“雌激素,骨髓间充质干细胞,脂肪干细胞,胚胎干细胞,诱导成骨”为检索词。结果与结论:最终纳入50篇文献进行分析。雌激素在人体中是最重要的内分泌激素,在干细胞诱导成骨的研究中是一种安全有效的诱导剂,促进干细胞增殖与成骨分化,并在不同干细胞上表现出来的作用特点不同。其主要作用机制为:直接作用于位于干细胞上的雌激素受体发挥作用,也可以诱导产生各种细胞因子间接影响细胞增殖与分化。雌激素的浓度等级、干细胞上雌激素受体基因的编码调控表达转录、构建细胞支架等尚存在一定的争议,需进一步研究。
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