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More About Alzheimer' s Disease
Scientists have developed skin tests that may be used in the future to identify people with Alzheimer's
disease and may ultimately allow physicians to predict who is at risk of getting this neurological
（神经病学的）disorder.
The only current means of diagnosing the disease in a living patient is a long and expensive series of
tests that eliminate every other cause of dementia.
"Since Alois Alzheimer described the disease nearly a century ago,people have been trying to find a
way to accurately diagnose it in its early stages,"said Patricia Grady,acting director of the National Institute
of Neurological Disorders and Stroke in Bethesda,Maryland."This discovery,if confirmed,could prove a big
step forward in our efforts to deal with and understand the disease."
Alzheimer's is the single greatest cause of mental deterioration in older people,affecting between 2.5
million and 4 million people in the United States alone.The devastating disorder gradually destroys memory and
the ability to function,and eventually causes death. There is currently no known treatment for the disease.
Researchers discovered that the skin cells of Alzheimer's patients have defects that interfere with their
ability to regulate the flow of potassium in and out of the cells.The fact that the cell defects are present in the
skin suggests that Alzheimer's results from physiological changes throughout the body,and that dementia may
be the first noticeable effect of these changes as the defects affect the cells in the brain,scientists said.
The flow of potassium is especially critical in cells responsible for memory formation.The scientists also
found two other defects that affect the cells' supply of calcium,another critical element.
One test developed by researches calls for growing skin cells in a laboratory culture and then testing
them with an electrical detector to determine if the microscopic tunnels that govern the flow of potassium are
open.Open potassium channels create a unique electrical signature.
A spokesman for the Alzheimer's Association said that if the validity of the diagnostic test can be
proven it would be an important development,but he cautioned that other promising tests for Alzheimer's
have been disappointing.
Which of the following statements about the Alzheimer's disease is NOT true?
A:It was so named because Alois Alzheimer first described it.
B:It is the greatest cause of mental deterioration in older people.
C:It can gradually destroy memory and eventually cause death.
D:There are many ways to deal with and cure the disease now.

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• 共用题干More About Alzheimer 's Disease
  Scientists have developed skin tests that may be used in the future to identify people with Alzheimer's disease and may ultimately allow physicians to predict who is at risk of getting this neurological（神经病学的）disorder.
  The only current means of diagnosing the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia.
  "Since Alois Alzheimer described the disease nearly a century ago,people have been trying to find a way to accurately diagnose it in its early stages,"said Patricia Grady,acting director of the National Institute of Neurological Disorders and Stroke in Bethesda,Maryland."This discovery,if confirmed,could prove a big step forward in our efforts to deal with and understand the disease."
  Alzheimer's is the single greatest cause of mental deterioration in older people,affecting between 2.5 million and 4 million people in the United States alone.The devastating disorder gradually destroys memory and the ability to function,and eventually causes death.There is currently no known treatment for the disease.
  Researchers discovered that the skin cells of Alzheimer’s patients have defects that interfere with their ability to regulate the flow of potassium in and out of the cells.The fact that the cell defects are present in the skin suggests that Alzheimer's results from physiological changes throughout the body,and that dementia may be the first noticeable effect of these changes as the defects affect the cells in the brain,scientists said.
  The flow of potassium is especially critical in cells responsible for memory formation.The scientists also found two other defects that affect the cells'supply of calcium,another critical element.
  One test developed by researches calls for growing skin cells in a laboratory culture and then testing them with an electrical detector to determine if the microscopic tunnels that govern the flow of potassium are open.Open potassium channels create a unique electrical signature.
  A spokesman for the Alzheimer's Association said that if the validity of the diagnostic test can be proven it would be an important development,but he cautioned that other promising tests for Alzheimer's have been disappointing. The passage indicates that Alzheimer's is a disease______.A:common to people,old and youngB:not costly to be curedC:easy to be handledD:not easy to be diagnosed

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• 神经化学物质的失衡可以引起人的行为失常，大到严重的神经疾病，小到常见的孤僻、抑郁甚至暴躁、嫉妒。神经化学物质的这些发现，使我们不但对精神疾病患者，而且对身边原本生厌的怪癖行为者，怀有同情和容忍，因为精神健康无非是指具有平衡的神经化学物质。
  下列哪项最为准确地表达了上述论证所要表达的结论？（）
  A、神经化学物质的上述发现将大大丰富神经病学的理论
  B、神经化学物质的失衡可以引起精神疾病或其他行为失常
  C、神经化学物质与行为的关系将有助于培养对他人的同情心
  D、神经化学物质是否失衡是决定精神或行为是否正常的主要因素

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• 神经病学的特性有()。

  A.疾病的复杂性

  B.症状的广泛性

  C.诊断的依赖性

  D.疾病的难治性

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• 某医生收集10例某病患者，记录了患者在抢救期间的总胆固醇水平，用爱丁堡斯堪的纳维亚神经病学卒中SNSS量表评定患者的神经功能缺损程度。已知量表评分呈偏态分布，若要分析总胆固醇与神经功能评分间的相关性，宜用（）

  A、积差相关系数

  B、直线回归系数

  C、等级相关系数

  D、决定系数

  E、截距

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