1. Summary:Common causes of senile and presenile vertigo in 100 cases were analysed and discussed.

2. Alzheimer's disease(AD)is presenile dementia, it is a neurodegenerative disease of the central nervous system, and the mechanism of it is not clear.

3. Conclusions The presenile cataract with serious clinical entities may be resulted from a novel mutation or another novel pathogenic gene with MYH9?RD.

4. An annual incidence rate of 2.4/100 000 at risk population was reported for presenile probable Alzheimer's disease in another national study.

5. Advice was sought from all chief administrative medical officers about the care of patients with presenile dementia.

6. Objective: The paper aims at supplying a scientific basic for unifying the reference value standard of Total Lung Capacity of Chinese healthy presenile women.

7. The results show that the prevalence rate of classical hypertension(CH)is the highest in presenile, but the lowest in senile.

8. Methods The clinical data and surgical results of 63 cases of senile and presenile vesicular disorders were analyzed retrospectively.

9. Objective: To study the anti-aging mechanism of Zuoguiyin (a prescription for tonifying Kindney Yin) and Yishenbao (a prescription for tonifying Kidney Yang) in presenile mice.

10. Objective: To study the effect of Dunhuang Weicifang delaying senility to D-galactose presenile model mice.

10. try its best to gather and build good sentences.

11. Objective To supply a scientific basis for uniting standard of the reference value of Chinese presenile people's hematocrit.

12. Conclusions If geographical factor somewhere in China are obtained, the reference value of Chinese presenile peoples hematocrit of this area can be reckoned using regression equations.