Insulin is used for the treatment of __________.
A.pains in the pancreas
B.diabetes and its complications
C.type 2 diabetes
D.muscle aches
A.pains in the pancreas
B.diabetes and its complications
C.type 2 diabetes
D.muscle aches
第1题
根据下列文章,请回答 41~45 题。
Effects of Exercise on Elderly Diabetics(糖尿病人)
Most older people with S0—called type 2 diabetes(糖尿病)couldstop taking insulin(胰岛素)if they would do brisk(轻快的)exercise for 30minutes just three times a week,according to new medical research resultsreported in a Copenhagen newspaper.Results from tests conducted on diabeticsat the Copenhagen central hospital Rigshospitalet'S Center for Muscle Researchshowed that physical exercise can boost the body's ability to make use ofinsulin by 30 per cent.This is equal to the effect most elderly diabetics getfrom their insulin medication(药物治疗)today.
Researchers had a group of non-diabetic men and agroup of men with type 2 diabetes,all more than 60 years of age,exercise onbicycles six times a week for three months.After the three months the doctorsmeasured how much sugar the test subjects,muscles could make use of as ameasure for how well their insulin worked.
Associate Professor Dr Flemming Dela of the Muscle Research Center saidthe tests demonstrated that the exercising diabetics had made as good use of insulinas the healthy non.diabetic persons.“This means that the insulin works just aswell for both groups.Physical exercise cannot cure people of diabetes,but itcan eliminate almost all their symptoms.At the same time It can put off thepoint at which they have to begin taking insulin.”Dela said.
Insulin is a hormone produced by the pancreas(胰腺),controlling sugar inthe body and is used against diabetes.
Dela said that to achieve the desired effect diabetics need onlyexercise to the point where they begin to sweat。but that the activity has to bemaintained since it wears off after five days without sufficient exercise.
Most diabetics realize that they have to watch their diet whileremaining unaware of the importance of exercise。Dela added.
第 41 题 What is the effect of exercise on elderlypeople with type 2 diabetes?
A.It can help the body make betteruse of insulin
B.It can worsen their symptoms.
C.It can help them to eat more.
D.It can cure them of thedisease.
第2题
Genetic Engineering
Genetic engineering began when the DNA molecule (分子), the most basic unit of life, was first described in 1953 by James Watson and Francis Crick. An understanding of DNA led to the altering of normal cell reproduction. Experiments with altering human cells began in 1970. In one of the first ex- periments, patients were injected with a virus that would produce a life-saving enzyme, but their bodies would not accept it. In 1980 patients with a rare but fatal blood disease were injected with a pu- rified gene that was cloned through DNA technology. Another failure.
Genetic engineering got a legal boost (激励) in 1980. The U. S. Supreme Court said that a patent could be granted on a genetically engineered "oil-eating" bacterium (细菌). This bacterium would help clean up oil spills. The ruling encouraged companies to invent new life forms, and three important medical products were quickly developed.
Human interferon (干扰素)-a possible solution to some cancers and viral disease A newly engineered bac-terium produced hurnan interferon as a by-product. This new product reduced the cost of interferon.
Human growth hormone-for children whose bodies do not grow to normal height. An expensive growth hormone (荷尔蒙) was previously produced from human cadavers, but by changing the genetic make-up of the single-cell bacterium E. coli, and affordable growth hormone could be produced.
Human insulin (胰岛素)-for the treatment of diabetes. People with diabetes used to rely on a beef-or pork-based product until 1982. Now insulin can be manufactured by genetically altered bacteria.
Advances in genetic engineering have continued, though they constantly must be weighted against the safety of procedures. There is clearly much more to discover.
This passage is mainly about
A.the effects of altering cells
B.the human growth hormone
C.insulin resistance
D.U. S. Supreme Court rulings
第6题
A.insulin
B.IGF-1 and -2
C.FGF
D.all of these may stimulate growth
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