A stereologic study of lamellar bodies within pulmonary alveolar type II cells in dogs with experimental acute hemorrhagic pancreatitis(group P)and in dogs inje- cted muscularly with choloroquine before inducing pancreatitis (group PI)was carried out.Our findings showed that volumerical density (Vv), surface density (Sv)and numerical density(Nv)of lamellar bodies were decreased by 29.06%,30.28% and 40.75% in the group P as compared with those in the control group (group N), respectively, and their Sv and Nv were decreased by 23.8% and 30.26% in comparison with those in the group PI.The results suggest that the lung injury resulting from acute hemorrhagic pancreatitis was characterized by alveolar surfactant System damage.Dramatical decrease in the number of the lamellar bodies affected the surface tension of alveoli in a certain degree, leading to atelectasis.There was a relationship between lung injury and the effect of PLA2(phospholipidase A2).Choloroquine might play a role in maintaining the number of lamellar bodies.

The pan-English lecture is one of the important measures to run a higher institution,improve the teaching quality and heighten recognition.Manwhile,it also brings up all-wave impact to the medical eduaction and management in China,such as the course system,the teacher education,the combination of practice and theory and so on.And in this article,the author analyzed the influence factors of the medical teaching quality of the overseas students from the points of teachers,content of courses and students.

In this study an acute rejecting model of heterotopic rat heart-lung transplantation was established by using simplified technique of end to side anastomosis of donor ascending aorta with recipient abdominal aorta.The measurements of tumor necrosis factor alpha(TNF-α)in serum of rats by Sandwich-ELISA method were taken on the 3rd,5th,7th days respectively after operation.The results of this study with histological examination showed that TNF-α serum levels were increased during acute rejection episodes.and it might be a useful indicator for diagnosis of allograft rejection.

The trial of two-way referral enrolled 26 patients with hypertension, including 20 cases of refractory hypertension, 3 new cases and 3 cases of secondary hypertension, the average length of follow-up was 22 d (10-35 d). The family physicians in Huaihaizhong Road Community Health Service Center communicated with specialists in the medical center (Ruijin hospital), appointments were made and medical information and other materials were sent in advance. When investigations and adjustment of medication were made, and the blood pressure was under control, patients were referred back to the community. This two-way referral system promoted the information exchanges between two side, doctors got prior knowledge about patients' condition and would spend more time with the patients; and patients' feeling of satisfaction and compliance of the treatment were increased. From our experiences, we suggest that the therapeutic regime made by the medical center should be feasible to the community, and more convenience should be given to the referred patients, so that the effectiveness and efficiency of the two-way referral can be further improved.

Objectives: To investigate the characteristics and their functional significance of TMJ disc and its attachment. Methods: Each of the 23 TMJs from 12 cadavers were divided into quadrants sagitall y, and total 92 histological slices were obtained and stained with HE.The morpho logical characteristics of the samples was observed microscopically. Results: ①Both temporal posterior and anterior mandibualr attachment s were loose while mandibular posterior and anterior temporal attachments were d ense in which the fibers run anterior posteriorly. ②Fibers in the intermediate zone ran predominantly in anterior posterior direction while those in both ant erior and posterior bands were mixed with transverse fibers. ③At the posterior portion of disc there were 33 out of 92 slices from 6/12 cadavers (11/23 TMJs) s howed the structure of "the fourth band" which was featured by dense fibers alik e those of inner disc. There were 36 out of 92 slices from 6/12 cadavers (10/23 TMJs) showed the structure of "turned fibers" which was featured by a sudden tu rning of fibers from the thick posterior band back and downward, providing an angle like sign. Conclusions: There is great difference o f fiber direction in various parts of disc and its attachments, reflecting the functional demands.

As introduced in the paper, the average days of stay of clinical department were calculated as a management target, in view of the complexity of disease and case mix index. This method could avoid the deficiency of traditional methods and make the management of average length of stay of clinical department more conforming to the actual situation, and also more scientific and reasonable.

Objective To compare the difference of the spinal cord injury rehabilitation physician training systems between Harvard Uni-versity and Capital Medical University. Methods The spinal cord injury rehabilitation physician training systems of Capital Medical Univer-sity and Harvard University were investigated, including the degree training time, residence training time, training fee and institution. Re-sults Degree education time was more in the basic science in Harvard University than in Capital Medical University. The residence training time was 7 years and 5 years for Harvard University and Capital Medical University, respectively, and the ratio of specialties and sub-spe-cialties was not significantly different. There was a total of 26 spinal cord injury community rehabilitation clinics in Harvard University sys-tem, and none in Capital Medical University. Conclusion Some light can be drawn from the spinal cord injury rehabilitation physician train-ing system of Harvard University, to improve the scholastic building of Capital Medical University.

BACKGROUND:The human telomerase reverse transcriptase (hTERT) is one of preferred growth factors for regulating proliferation and directional differentiation, has multiple biological effects, and laids the foundation for geneticaly engineered immortalized stem cel lines. OBJECTIVE: To investigate the effect ofhTERT gene-modified umbilical cord mesenchymal stem cel transplantation on acute kidney injury induced by ischemia and reperfusion in rats. METHODS:The human umbilical cord mesenchymal stem cels were cultured in vitro. Rat models of acute kidney injury induced by ischemia and reperfusion were established. Rat models were randomly divided into three groups. Rats in the control group were injected with 1 mL L-DMEM medium through caudal vein. Rats in the negative transfection group were injected with 1 mL umbilical cord mesenchymal stem cel suspension after empty virus transfection through caudal vein. Rats in the hTERT transfection group were injected with 1 mL umbilical cord mesenchymal stem cel suspension after PLXSN-hTERT transfection through caudal vein. RESULTS AND CONCLUSION:At 3 and 28 days after transplantation, hematoxylin-eosin staining showed renal tubular damage score in the hTERT transfection group < negative transfection group < control group (P < 0.05). At 28 days after transplantation, the number of CM-Dil-positive cels in the hTERT transfection group > negative transfection group > control group (P < 0.05). At 1, 3, 14, and 28 days, serum creatinine and urea nitrogen levels in the hTERT transfection group < negative transfection group < control group (P < 0.05). The results confirm that hTERT gene-modified umbilical cord mesenchymal stem cel transplantation has a significant repair effect on acute kidney injury in rats.

Objective To discuss error factor of the manufacture on baffle plate of radiation field and improve methods of quality assurance and quality control.Methods The errors on different types of baffles were analyzed and evaluated by combining the result of the practice of making baffle and testing of baffle.Results As the difference on the production process and the method of making baffle,there is different degree error on baffle plate of radiation field.The extreme consequence was influenced by quality grate of every manufactured link.Conclusion The technical level of personal,the accuracy of making methods,the equipment precision and the material quality can be produced varying degrees in making.The perfect quality control and quality assurance system can be ensured minimum error.

Field operation infirmary should conquer many complicated situations, such as overuse of vehicles, too far maneuvering distance, too long maneuvering time, and complicated road state. The author puts forward that in the marching, the division of responsibilities and march discipline should be very strict, and vanguard should be sent before field operation infirmary, which ensure the operation infirmary to reach the destination safely and successfully.