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老年人收缩期高血压(硬化性的)是一种特殊型疾病。得此病时只有收缩期动脉压升高,其主要发病机理是主动脉和粗大动脉的硬化。有关遗传学因素和外部环境因素对这种类型疾病能产生什么影响,迄今还没有人研究过。作者利用双生子的遗传学研究方法。在研究中所选择的双生子是从50岁开始的。所分析的全部双生子都是随机选取的。双生子的卵性由以下三种方法确定:外部相似法、皮纹学法和ABO血型系统免疫遗传学法(在有疑问的情况下用HLA血型免疫遗传学法)。
Systolic hypertension in the elderly (sclerosing) is a special type of disease. Only when the disease is systolic arterial hypertension, the main pathogenesis is the aorta and thick arteries hardening. No one has ever studied the effects of genetic and environmental factors on this type of disease. The author uses twin genetics research methods. The twins selected in the study started at the age of 50. All twins analyzed are randomly selected. Twin eggs are determined by the following three methods: the external similarity method, the dermatoglyphics, and the ABO blood group system immunosuppression (in case of doubt, HLA blood type immunosuppression).