目的:对新生儿脐血进行血红蛋白电泳分析,探讨血红蛋白电泳在地中海贫血筛查中的临床应用价值。方法:收集2012年1月至2013年12月广东省21个地市妇幼保健院送检新生儿脐带血标本14 032例。采用全自动毛细管电泳分析系统进行血红蛋白电泳...目的:对新生儿脐血进行血红蛋白电泳分析,探讨血红蛋白电泳在地中海贫血筛查中的临床应用价值。方法:收集2012年1月至2013年12月广东省21个地市妇幼保健院送检新生儿脐带血标本14 032例。采用全自动毛细管电泳分析系统进行血红蛋白电泳检测。血红蛋白电泳筛查结果阳性的标本进一步进行基因检测。结果:血红蛋白电泳共检出异常例数为1 445(11.07%),其中检出疑似α-地中海贫血1075例(7.66%),疑似β-地中海贫血478例(3.41%),疑似异常血红蛋白127例(0.91%)。α-地中海贫血基因诊断确诊为967例,与血红蛋白电泳筛查符合率为89.95%;β-地中海贫血基因诊断确诊为404例,与血红蛋白电泳筛查符合率为82.96%。通过PCR结合反向斑点杂交法或DNA测序后,疑似异常血红蛋白标本中确诊124例,其中Hb E 38例、Hb Q 28例、Hb D 21例、Hb New York 19例、Hb J 13例、Hb G 5例。结论:脐血血红蛋白电泳是新生儿地中海贫血及异常血红蛋白病有效的筛查方法。展开更多
Cell-based regenerative medicine is of growing interest in biomedical research. The role of stem cells in this context is under intense scrutiny and may help to define principles of organ regeneration and develop inno...Cell-based regenerative medicine is of growing interest in biomedical research. The role of stem cells in this context is under intense scrutiny and may help to define principles of organ regeneration and develop innovative therapeutics for organ failure. Utilizing stem and progenitor cells for organ replacement has been conducted for many years when performing hematopoietic stem cell transplantation. Since the first successful transplantation of umbilical cord blood to treat hematological malignancies, non-hematopoietic stem and progenitor cell populations have recently been identified within umbilical cord blood and other perinatal and fetal tissues. A cell population entitled mesenchymal stromal cells (MSCs) emerged as one of the most intensely studied as it subsumes a variety of capacities: MSCs can differentiate into various subtypes of the mesodermal lineage, they secrete a large array of trophic factors suitable of recruiting endogenous repair processes and they are immunomodulatory.Focusing on perinatal tissues to isolate MSCs, we will discuss some of the challenges associated with these cell types concentrating on concepts of isolation and expansion, the comparison with cells derived from other tissue sources, regarding phenotype and differentiation capacity and finally their therapeutic potential.展开更多
文摘目的:对新生儿脐血进行血红蛋白电泳分析,探讨血红蛋白电泳在地中海贫血筛查中的临床应用价值。方法:收集2012年1月至2013年12月广东省21个地市妇幼保健院送检新生儿脐带血标本14 032例。采用全自动毛细管电泳分析系统进行血红蛋白电泳检测。血红蛋白电泳筛查结果阳性的标本进一步进行基因检测。结果:血红蛋白电泳共检出异常例数为1 445(11.07%),其中检出疑似α-地中海贫血1075例(7.66%),疑似β-地中海贫血478例(3.41%),疑似异常血红蛋白127例(0.91%)。α-地中海贫血基因诊断确诊为967例,与血红蛋白电泳筛查符合率为89.95%;β-地中海贫血基因诊断确诊为404例,与血红蛋白电泳筛查符合率为82.96%。通过PCR结合反向斑点杂交法或DNA测序后,疑似异常血红蛋白标本中确诊124例,其中Hb E 38例、Hb Q 28例、Hb D 21例、Hb New York 19例、Hb J 13例、Hb G 5例。结论:脐血血红蛋白电泳是新生儿地中海贫血及异常血红蛋白病有效的筛查方法。
基金Supported by Research Funds of the German Federal Ministry of Education and Research (01GN0531 and 01GN0939)Proj-ect Commissioned by the European Community ("CASCADE"HEALTH-F5-2009-223236).
文摘Cell-based regenerative medicine is of growing interest in biomedical research. The role of stem cells in this context is under intense scrutiny and may help to define principles of organ regeneration and develop innovative therapeutics for organ failure. Utilizing stem and progenitor cells for organ replacement has been conducted for many years when performing hematopoietic stem cell transplantation. Since the first successful transplantation of umbilical cord blood to treat hematological malignancies, non-hematopoietic stem and progenitor cell populations have recently been identified within umbilical cord blood and other perinatal and fetal tissues. A cell population entitled mesenchymal stromal cells (MSCs) emerged as one of the most intensely studied as it subsumes a variety of capacities: MSCs can differentiate into various subtypes of the mesodermal lineage, they secrete a large array of trophic factors suitable of recruiting endogenous repair processes and they are immunomodulatory.Focusing on perinatal tissues to isolate MSCs, we will discuss some of the challenges associated with these cell types concentrating on concepts of isolation and expansion, the comparison with cells derived from other tissue sources, regarding phenotype and differentiation capacity and finally their therapeutic potential.
