The preventive theory of traditional Chinese medicine means treating before occurrence or transference of diseases, which guides the modern health work. This paper analyses some health problem of citizens, proposes the solution and suggestion. Treating before occurrence or transference of diseases should not only be a medical ideal and the true approach is to strengthen system health education to citizens, especially all the students in school.

The paper reviewed the research cooperation on public health between China and US in 30 years since the establishment of Sino-US diplomatic relation, based on the project database of Peking University, and made out the comments on the benefits, shortages and expectation in future cooperation.

[Objective] To explore the status of chlorite pollution in drinking water due to chlorine dioxide , aswell as its causes and counter measures. [Methods]A water plant collecting surface water as raw water slightly pol-luted by organic compounds and B water plant collecting ground water without organic compounds pollution wereselected as observed objectives. Chlorine dioxide generators were used in both of A and B water plants, their rawmaterials was chlorite for A plant and chlorate for B plant. The levels of chlorite in treated water from these twowater plants were determined by amperometric titration. [Results]The levels of chlorite in treated water of A waterplant ranged 0.530～0.760 mg/L, 2.6～3.8 times of the standard value, with a over standard rate of 100％, thelevels of B water plant range 0.257～0.733 mg/L, 1.3～3.7 times of the standard value, with a over standard rateof 83.3％. [Conclusion] The treated water of A and B water plants presented higher pollution by chlorite, the by-product of chlorine dioxide disinfection.

The author in this text discusses the right of replicating medical records from the angle of law,and puts forward his own viewpoint,that is for the objective medical records,patients can copy them in any time,but for the subjective ones,it just depends on the cases. Generally speaking patients don't have the copy right about them,but when medical treatment trouble occurs,the patients should have the copy right to copy the sealed and stored medical records.

Based on the findings of the past five decades, the seasonal regularity of respiratory disease was summed leading to respiratory tract diseases were summed up.

Pituitary tumors, originated from homoral adenohypophyseal cells, are very common in intracranial neoplasms. They are characterized by a wide range of biological behavioral related to hormoral and proliferative activities. Previous pituitary adenoma studies mainly devoted to histological and ultrastructural classification with immunohistochemical techniques. Molecular biology allowed new approaches, especially concerning the pathogenesis and progression. This article reviews the progress of these researches regarding chromosomes, oncogenes, antioncogenes, transgenic animal models and genetic therapy.

Invasive pituitary adenoma is a common pituitary adenoma invading nearby structures such as the sphenoidal sinus, ethmoidal sinus,upper clivus,sellar floor dura and bone. With the development of diagnosis neuroradiology, endocrinology,pathology and microsurgery,dramatic progress has been made on the pathogenesis, pre operative diagnosis and therapy of invasive pituitary adenoma.The development of pathology,molecular biological and medication and surgical therapy of invasive pituitary adenoma in the past few years is discussed in this paper.

Objective: To observe the effect of acupuncture plus LONG's manual manipulations on the functional improvement of the patients with lumbar intervertebral disc protrusion. Methods: 60 cases of the patients were randomly divided into a observation group and a control group, 30 cases in each group. The observation group was treated with acupuncture plus LONG's manual manipulations, and the control group was treated with single acupuncture. The functions of the lumber vertebrae were processed in accordance with the assessment system of Japanese Orthopedic Association (JOA), and the therapeutic effects were assessed by Visual Analog Scale (VAS). Results: After the treatments, the differences in JOA and improvement indexes were statistically significant (P＜0.05) between the two groups. VAS was decreased much remarkably in the observation group (P＜0.01) than before the treatments and decreased remarkably in the control group (P＜0.05) than before the treatments. There was a remarkable difference in VAS between the two groups after the treatments (P＜0.05).Conclusion: Acupuncture plus LONG's manual manipulations are better than single acupuncture in improving the functions of the patients with lumbar intervertebral disc protrusion.

Aim To investigate the anti-EAC breast cancer effects of viable human umbilical vein endothe-lial cells ( HUVECs) vaccine. Methods Subconflu-ent HUVECs were mixed with OK432 to prepare HU-VECs-OK432 vaccine, and the anti-tumor efficacy of HUVECs-OK432 was investigated using a subcutaneous tumor model of EAC breast cancer. ELISA, splenic lymphocyte proliferation assay and cytotoxic T lympho-cytes ( CTL ) killing assay were adopted to detect the humoral and cellular immune responses after HUVECs-OK432 immunization. Results HUVECs-OK432 im-munization significantly inhibited the growth of EAC tumor in mice in the prophylactic procedures. High ti-ter of anti-HUVEC antibody was elicited by HUVECs-OK432 immunization. The proliferation activity of splenocytes from mice immunized with HUVECs-OK432 was significantly increased. T lymphocytes iso-lated from HUVECs-OK432-immunized mice were dose dependently killing HUVECs in vitro. Conclusion Strong humoral and cellular immune responses targeting HUVEC are elicited by HUVECs-OK432 immuniza-tion, which results in a significant inhibition on the growth of EAC tumor in mice.

Purpose: To explore the relationship between the amount of lymphocyte containing adhesion molecules(CD_(44)) and the development and postoperative metastasis of bone tumors. Method: The percentage of peripheral blood CD_(44) positive lymphocyte's(PB CD_(44) + L) in 45 patients with bone tumor and the tissue CD_(44) content in 7 malignant bone tumors were determined with the flow cytomentric immunological method. Results: The PB CD_(44) + L in benign tumor group(BG) and malignant tumor group(MG) were much higher than that of the control, and the PB CD_(44) + L in MG was higher than that in BG. No difference was found in the content of PB CD_(44) + L between the mahgnant non-metastatic group (MNG) and the malignant metastatic group(MMG). The postoperative PB CD_(44) + L in the BG and MNG was decreased, but CD_(44) was unchanged pre-and postoperatively in the MMG. The patients with high CD_(44) content in the tumor tissues were liable to postoperative lung metastasis. Conclusions: The determination of CD_(44) in PBL and tumor tissue can be helpful to determine the nature of the neoplasm and to predict its prognosis.