Created by: karen.west
Number of Blossarys: 1
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Investigation of properties of single cells. Essential for formal demonstration of self-renewal and potency.
Unproven notion that different stem cells are regulated by common genes and mechanisms.
undifferentiated cells that have the potential to become a limited number of specific cell types. These multipotent cells are found in small quantities in umbilical cord blood and adult tissues. There is limited evidence that one type of adult stem cells can produce cells that naturally come from another type of adult stem cells.
有可能会成为为数有限的特定类型的细胞的未分化的细胞。这些多能干细胞在小批量在脐带血和成人组织中被找到。有有限的证据表明一种类型的成人干细胞可产生自然来自成人干细胞的另一种类型的细胞。
An early stage embryo of about 100 cells that has not yet implanted into the womb. The blastocyst is a sphere made up of an outer layer of cells, a fluid-filled cavity and cluster of cells inside called the inner cell mass. The blastocyst develops after cleavage and prior to implantation at approximately five days. Further reproductive development occurs only if the blastocyst is successfully implanted in the uterus.
早期胚胎的约 100 单元格，已不能尚未植入子宫。胚囊是一个球体组成的外层细胞的一个充满液体的腔和群集内部细胞称为内细胞质量。胚囊开发后的乳沟和植入术在大约五天前。进一步只有胚泡成功植入子宫中，就会发生生殖发育。
A cell produced during cleavage of a fertilized egg.
An early stage embryo of about 100 cells that has not yet implanted into the womb. The blastocyst is a sphere made up of an outer layer of cells, a fluid-filled cavity and cluster of cells inside called the inner cell mass. The blastocyst develops after cleavage and prior to implantation at approximately five days. Further reproductive development occurs only if the blastocyst is successfully implanted in the uterus.
早期胚胎的约 100 单元格，已不能尚未植入子宫。胚囊是一个球体组成的外层细胞的一个充满液体的腔和群集内部细胞称为内细胞质量。胚囊开发后的乳沟和植入术在大约五天前。进一步只有胚泡成功植入子宫中，就会发生生殖发育。
The process of turning scientific knowledge into approved medical treatments, through a series of carefully controlled research and approval steps.
A research study in human subjects to answer specific questions about vaccines or new therapies or new ways of using known treatments. Clinical trials are used to determine whether new drugs or treatments are both safe and effective. Trials take place in four phases: Phase I tests a new drug or treatment in a small group; Phase II expands the study to a larger group of people; Phase III expands the study to an even larger group of people; and Phase IV takes place after the drug or treatment has been licensed and marketed.
一项研究报告在人体来回答特定问题有关的疫苗或新的疗法或使用已知的治疗方法的新方法。临床试验用于确定新的药物或治疗方法是否安全和有效。试验分四个阶段： 阶段我测试一种新的药物或治疗中一小群 ；阶段 II 将研究扩展到一大群人 ；阶段 III 将研究扩展到更大的小组的人 ；和第四阶段发生后这种药物或治疗已领有牌照并销售。
To create a copy. “Therapeutic cloning” creates a line of stem cells genetically identical to the originating cell for use in research. “Reproductive cloning” creates an organism genetically identical to the organism providing the originating cell.
若要创建一个副本。"治疗性克隆"创建一线干细胞的基因完全相同的起始单元格中的使用在研究中。"生殖性克隆"创建一个有机体有机体提供原始细胞基因相同。
Engagement in a programme leading to differentiation. For a stem cell, this means it no longer retains the ability to self-renew.
the process by which stem cells acquire the features of specialized adult cells such as those found in heart, brain and pancreatic tissue.
The developing human organism (a group of cells) that arise from a fertilized egg (after merging of egg and sperm). An embryo does have the potential to become a complete organism. The embryonic stage ends at eight weeks of development.
发展中国家人类机体 （一组单元格） （合并后的卵子和精子） 产生的一个受精卵。胚胎有潜力成为一个完整的有机体。胚胎阶段在发展的八个星期结束。
