名词解释题hematopoietic stem cell,HSC (造血干细胞)

名词解释题
hematopoietic stem cell,HSC (造血干细胞)

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提出造血干细胞(hemopoieticstemcell,HSC)的概念的依据是A、造血干细胞是由胚胎干细胞发育而来B、维持体内恒定的血细胞数量C、1961年Till等在动物发现了造血干细胞D、1979年,体外培养人造血祖细胞成功E、采用了天然的细胞标志纯化造血干细胞和发展体外造血干细胞培养技术

(b) Explain FIVE critical success factors to the performance of HSC on which the directors must focus if HSC isto achieve success in its marketplace. (10 marks)

提出造血干细胞(hematopoietic stem cell,HSC)概念的依据是A、造血干细胞是由胚胎干细胞发育而来B、维持体内恒定的血细胞数量C、1961年Till等在小鼠体内发现了造血干细胞D、1979年,体外培养人造血祖细胞成功E、采用天然的细胞标志纯化造血干细胞和发展体外造血干细胞培养技术

共用题干Stem Cell Therapy May Help Repair the HeartAccording to scientists in the USA,stem cell therapy may one day be able to repair the hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine examined 20 patients who had severe heart failure and were going to have surgery.They injected stem cells into the parts of their hearts that were damaged.They then compared their hearts with those of people who had undergone surgery without having the stem cells injected into them(they had also suffered from severe heart failure).The patients who had had the stem cells injected had hearts that were able to pump(用泵抽运) more blood than the others.According to Professor Robert Kormos,one of the researchers,these results could revolutionize heart treatment.Although previous studies had indicated that there might be a benefit,this is the first study that has actually proved that stem cell therapy can help thefailing heart work better.All the patients in this study had hearts that could not pump blood properly.The scientists measured their ejection fraction(射血分数).This is a measure of heart performance;you measure how much blood is being pumped out by the left ventricle(心室).Healthy people's ejection fraction is about 55%.These patients had ejection fraction ofunder 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the patients had stem cells taken from their hip bones and injected into 25-30 sites in the damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those who just had surgery but no stem cell injections averaged 37. 2%.No side effects were reported.Heart failure is a common problem all over the world.In the UK alone about 650, 000 people suffer from heart failure every year. As the number of people suffering from heart failure increases in the world in general these findings are particularly significant.Current treatments relieve the symptoms.This new stem cell therapy actually repairs the damaged muscle in the heart and has the potential of curing the disease. Heart failure is more common in the UK than anywhere else in the world.A:Right B:Wrong C:Not mentioned

共用题干Stem Cell Therapy May Help Repair the HeartAccording to scientists in the USA,stem cell therapy may one day be able to repair the hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine examined 20 patients who had severe heart failure and were going to have surgery.They injected stem cells into the parts of their hearts that were damaged.They then compared their hearts with those of people who had undergone surgery without having the stem cells injected into them(they had also suffered from severe heart failure).The patients who had had the stem cells injected had hearts that were able to pump(用泵抽运) more blood than the others.According to Professor Robert Kormos,one of the researchers,these results could revolutionize heart treatment.Although previous studies had indicated that there might be a benefit,this is the first study that has actually proved that stem cell therapy can help thefailing heart work better.All the patients in this study had hearts that could not pump blood properly.The scientists measured their ejection fraction(射血分数).This is a measure of heart performance;you measure how much blood is being pumped out by the left ventricle(心室).Healthy people's ejection fraction is about 55%.These patients had ejection fraction ofunder 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the patients had stem cells taken from their hip bones and injected into 25-30 sites in the damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those who just had surgery but no stem cell injections averaged 37. 2%.No side effects were reported.Heart failure is a common problem all over the world.In the UK alone about 650, 000 people suffer from heart failure every year. As the number of people suffering from heart failure increases in the world in general these findings are particularly significant.Current treatments relieve the symptoms.This new stem cell therapy actually repairs the damaged muscle in the heart and has the potential of curing the disease. The 20 patients had stem cell injections instead of surgery.A:Right B:Wrong C:Not mentioned

root and stem

Stem cell in epidermis是()。A、基底细胞B、棘细胞C、郎格汉斯细胞D、梅克尔细胞

造血干细胞(hemopoietic stem cell)

定向干细胞(committed stem cell)

S7-200系列PLC有6个高速计数器,其中有12种工作模式的是()。A、HSC0、HSC1B、HSC1、HSC2C、HSC0、HSC4D、HSC2、HSC4

高速计数器的地址编号范围根据CPU的型号的不同而不同,CPU224XP高速计数器的编号为()。A、HSC0~HSC1B、HSC0~HSC3C、HSC0~HSC4D、HSC0~HSC5

根据HSC的来源HSCT可以分为()、()、()。

造血干细胞(HSC)

同源重组(homologous recombination)与胚胎干细胞(embryonic stem cell)结合起来,创造了基因打靶技术(gene targeting),并得到基因敲除模型,获得了()年的诺贝尔奖A、2006B、2007C、2008D、2009

名词解释题somatic stem cell (成体干细胞)

名词解释题embryonic stem cell,ES (胚胎干细胞)

名词解释题muscle stem cell (肌肉干细胞)

名词解释题骨髓间充质干细胞(marrow mesenchymal stem cell)

单选题同源重组(homologous recombination)与胚胎干细胞(embryonic stem cell)结合起来,创造了基因打靶技术(gene targeting),并得到基因敲除模型,获得了()年的诺贝尔奖A2006B2007C2008D2009

名词解释题造血干细胞(HSC)

名词解释题造血干细胞(hematopietic stem cell)

单选题Stem cell in epidermis是()。A基底细胞B棘细胞C郎格汉斯细胞D梅克尔细胞

名词解释题Embryonic stem cell

多选题提出造血干细胞(hemopoieticstemcell,HSC)的概念的依据是()A造血干细胞是由胚胎干细胞发育而来B维持体内恒定的血细胞数量C1961年Till等在动物发现了造血干细胞D1979年,体外培养人造血祖细胞成功E采用了天然的细胞标志纯化造血干细胞和发展体外造血干细胞培养技术