[Epidemiological study of blood stasis and plasma tissue plasminogen activator and its inhibitor activity in healthy aged]

According to the blood stasis survey of 77 healthy subjects in presenile geriatric period, in comparison with 35 healthy young people, it was found the 51.79% of healthy subjects had blood stasis. The detectable rate were significantly different among various age groups (P < 0.005), and the rate increase was age-dependent. Chromogenic peptide substrate analytical method was used to detect plasma tissue plasminogen activator (t-PA), tissue plasminogen activator inhibitor (PAI) activity and ratio of P/t. The result revealed that the activity of plasma t-PA in presenile geriatric period subjects was significantly higher than that of young people (P < 0.01), but the activity of PAI had no difference in various age groups, and the ratio of P/t was markedly decreased. It showed that this was the physiological compensatory reaction of aging organism against hypercoagulability, and it was an effective way to maintain the physiological balance of the aged.

[Treatment of deficiency of spleen energy with zhenqi fuzheng chongji and its effect on Zn, Cu and Mg in serum]

This article reports that there is a good response, with an effective rate of 96.2% in the treatment of the deficiency of Spleen energy (DSE) with Zhenqi Fuzheng Chongji (ZQFZCJ). The serous level of ZQFZCJ and the serum concentrations of Zn, Cu and Mg in 53 patients with DSE and in 83 normal subjects were measured with atomic absorption spectrometric analysis. In contrast to the normal subjects, the concentrations of Zn and Mg were decreased and that of Cu and the ratio of Cu/Zn increased in the patients before treatment (P greater than 0.01-0.05). After treatment, however, the concentrations of Zn and Mg became increased (P less than 0.001, P less than 0.05), and the ratio of Cu/Zn decreased (P less than 0.001). The authors conclude that there is some relationship between these three elements and DSE, and the mechanism for the treatment of DSE with ZQFZCJ. ZQFZCJ, rich in trace elements, may provide trace elements for the body, improve the metabolism, transportation and utilization of the trace elements in the body, and activate various enzymes, thus regulating and maintaining the homeostasis, i.e. "supporting in deficient patients".