代谢(神经)改善药（Metabolic (nervous) modifying agents）.doc

代谢(神经)改善药（Metabolic (nervous) modifying agents） With the increase of the world population aging, senile dementia is increasing correspondingly, the prevalence rate of 65 people over the age of 3 - 5%, 80 years old more than 20% of these patients caused great pressure to the society and family, for the treatment of these patients has become the social and medical workers of the responsibility. Alzheimers disease is mainly cerebral vascular dementia (VD) and Al Cemerss disease (AD). Cerebral vascular dementia (VD) formerly known as multi infarct dementia, dementia is the reason that many brain lacunar infarction, cerebral infarction leads to accumulation of substantial damage, a large number of brain tissue can lead to dementia, discovered in recent years, infarction is not multiple, or a few large infarction can also cause dementia, so called cerebral vascular dementia. According to the census of 11 cities in China, the prevalence rate of cerebrovascular dementia in the elderly over 60 years old is 324/10 million, and the prevalence rate of urban dementia is higher than that in the rural areas. In the early stage of the disease, the clinical manifestations vary with the location of the brain, and the symptoms and signs of the nervous system vary. MRI and CT examinations revealed lesions. The end result is dementia of varying degrees. Al Cemerss disease (AD) is a primary degenerative gray matter encephalopathy. The etiology and pathogenesis is not very clear, often to the elderly elderly onset, slow onset, progressive development, many families of patients is difficult to say that Qingming onset time, just feel the gradual emergence of mental decline in patients. The prevalence of the disease is obviously related to age, and its prevalence increases with age. The prevalence rate of 65 year olds was 2% - 5%, and the prevalence rate of people aged 80 and over increased to 15% - 20%. Diffuse brain atrophy may be seen on MRI and CT examinations. Such patients, regardless