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随着人口老龄化问题日益严重,开发老人所需要的健康药品是一个很大的市场。目前日本65岁以上的老人中有6％的人患有老年性痴呆症,1990年老年性痴呆症患者共99.4万人。据预测,2000年将达150万,2100年可达213万。老年性痴呆症的症状是记忆力衰退,判断力、抽象思维和计算能力下降。从病理学上来划分,分为脑血管性痴呆和阿尔兹海默(Alzheimer)病。前者由脑出血和脑梗塞等脑血管出现障碍所引起,目前此种病的预防和治疗都有所进展。但是,阿尔兹海默病由于病因尚不完全清楚,其治疗和预防尚无好的办法。目前全世界
As the problem of population aging worsens, developing healthy medicines for the elderly is a big market. At present, 6% of the elderly people over the age of 65 in Japan have Alzheimer’s disease. In 1990, there were 994,000 people with Alzheimer’s disease. It is predicted that in 2000 it will reach 1.5 million and in 2100 it will reach 2.13 million. Symptoms of Alzheimer’s disease are memory loss, judgment, abstract thinking, and diminishing ability to compute. Pathologically divided into cerebral vascular dementia and Alzheimer’s disease. The former caused by cerebral hemorrhage and cerebral infarction and other cerebrovascular disorders caused by the current prevention and treatment of such diseases have made progress. However, the cause of Alzheimer’s disease is not yet fully understood and there is no cure for it. Currently around the world