Stem Cell Therapy May Help Repair the Heart

　　According 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（用泵抽運(yùn)）more blood than the others.

　　According to Professor Robert Kormos, one of t11e 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 the failing 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?jǐn)?shù)）. 1t is a measure of heart performance；you measure how much blood is being pumped out by the left ventricle（心室）.

　　Healthy peoples ejection fraction is about 55％. These patients had ejection fraction of under 35％. They a11 had by-pass surgery（搭橋手術(shù)）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 reposed.

　　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.

　　16 The 20 patients had stem cell injections instead of surgery.

　　A Right　　B Wrong　　C Not mentioned

　　17 The experiment proved to be satisfactory.

　　A Right　　B Wrong　　C Not mentioned

　　18 The control group patients regretted not having had stem cell injections.

　　A Right　　B Wrong　　C Not mentioned

　　19 The study actually proved for the first time the benefit of stem cell therapy

　　A Right　　B Wrong　　C Not mentioned

　　20 The ejection fraction rate of the patients with stem cell injections decreased.

　　A Right　　B Wrong　　C Not mentioned

　　21 Heart failure is more common in the UK than anywhere else in the world.

　　A Right　　B Wrong　　C Not mentioned

　　22 Stem cell therapy seems to have great prospects.

　　A Right　　B Wrong　　C Not mentioned

　　答案:

　　16 B 文章第一段中的第二句話和第五段中的第三句話表明，這20名病人也接受手術(shù)治療。

　　17 A 文章第二段表明，干細(xì)胞注射實驗效果很好。

　　18 c 文章沒有提及對照組病人是否抱怨沒有接受干細(xì)胞注射。

　　19 A 文章第三段表明，該實驗首次證明了干細(xì)胞治療的長處。

　　20 B 文章第五段表明，接受干細(xì)胞注射的病人射血分?jǐn)?shù)率增加了而不是降低了。

　　21 c 文章第八段只是通過英國的例子來說明，心衰是世界范圍的常見病，但并沒有提及心衰是否在英國要比世界其他任何地方更嚴(yán)重。

　　22 A 文章最后一段表明干細(xì)胞治療前景可觀。

　　Stem Cell Therapy May Help Repair the Heart

　　According 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（用泵抽運(yùn)）more blood than the others.

　　According to Professor Robert Kormos, one of t11e 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 the failing 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?jǐn)?shù)）. 1t is a measure of heart performance；you measure how much blood is being pumped out by the left ventricle（心室）.

　　Healthy peoples ejection fraction is about 55％. These patients had ejection fraction of under 35％. They a11 had by-pass surgery（搭橋手術(shù)）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 reposed.

　　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.

　　16 The 20 patients had stem cell injections instead of surgery.

　　A Right　　B Wrong　　C Not mentioned

　　17 The experiment proved to be satisfactory.

　　A Right　　B Wrong　　C Not mentioned

　　18 The control group patients regretted not having had stem cell injections.

　　A Right　　B Wrong　　C Not mentioned

　　19 The study actually proved for the first time the benefit of stem cell therapy

　　A Right　　B Wrong　　C Not mentioned

　　20 The ejection fraction rate of the patients with stem cell injections decreased.

　　A Right　　B Wrong　　C Not mentioned

　　21 Heart failure is more common in the UK than anywhere else in the world.

　　A Right　　B Wrong　　C Not mentioned

　　22 Stem cell therapy seems to have great prospects.

　　A Right　　B Wrong　　C Not mentioned

　　答案:

　　16 B 文章第一段中的第二句話和第五段中的第三句話表明，這20名病人也接受手術(shù)治療。

　　17 A 文章第二段表明，干細(xì)胞注射實驗效果很好。

　　18 c 文章沒有提及對照組病人是否抱怨沒有接受干細(xì)胞注射。

　　19 A 文章第三段表明，該實驗首次證明了干細(xì)胞治療的長處。

　　20 B 文章第五段表明，接受干細(xì)胞注射的病人射血分?jǐn)?shù)率增加了而不是降低了。

　　21 c 文章第八段只是通過英國的例子來說明，心衰是世界范圍的常見病，但并沒有提及心衰是否在英國要比世界其他任何地方更嚴(yán)重。

　　22 A 文章最后一段表明干細(xì)胞治療前景可觀。