3.Correlation between periodontal disease and ischemic stroke and its possible mechanisms
International Journal of Cerebrovascular Diseases 2011;19(8):616-619
A large number of epidemiological studies have indicated that periodontal disease and ischemic stroke have a certain correlation, which may be its independent risk factor, but the exact mechanism is not fully understood. This article reviews the epidemiological studies of periodontal disease and ischemic stroke as well as its possible mechanism of action.
4.Advancement in the diagnosis of invasive fungal infection
Chinese Journal of Practical Internal Medicine 2001;0(07):-
The acurate diagnosis of invasive fungal infection(IFI)is the key point for the treatment and proginosis for IFI patients.Pathological diagnosis is still considered as the gold standard for the IFI diagnosis although difficult.The regular procedures for IFI diagnosis including culture and direct examintion are often low yeilding,the discrimination for contamination and infection is hard.Imaging manifestations are nonspecific but have important suggestive values.The detection for molds antigen content is useful,but its sensitivity and specifity need to be improved.The proper diagnosis for IFI relys on the combination of clinical characteristic,imaging manifestion and serial observation.
5.THE EFFECT OF dbcAMP ON THE MURINE U_(14) ASCITIC TUMOR CELLS SCANNING ELECTRON MICROSCOPIC OBSERVATION AND FLOW MICROCYTOMETRIC ANALYSIS
Acta Anatomica Sinica 1955;0(03):-
dbcAMP was injected i. p. into four U_(14) ascitic tumor bearing mice on 3,4,5,6 and 7 days after inoculation of tumor cells. The ascites was aspirated 0.5-1 hour after last injection. For scanning electron microscopy, the tumor cells, washed twice in Hanks solution, were fixed in glutaraldehyde and OsO_4, dehydrated with ethyl alcohol and dried with camphene. For flow microcytometric analysis, the treated tumor cells were fixed in 70% cold ethyl alcohol and stained with propidium iodide. Under SEM, the untreated tumor cells were large, spherical, and uniform in size with numerous long thin microvilli on the cell surface. A few barely visible minute protrusions were present on the microvilli and cell membrane. The great majority of treated tumor cells became smaller and variable in size, with shortened microvilli which reduced in number and even disappeared in some area. Many granular protrusions, larger than that of the control, were clearly observed on the cell membrane and microvilli. The result of flow microcytometric analysis showed that the DNA histogram and cell cycle profile from dbcAMP treated cells have no significant difference from the untreated controls, so it is evident that morphologic changes resulted from dbcAMP were not caused by cell cycle alteration. The morphogenesis of microvilli and cell membrane changes in dbcAMP treated cells is not clear. The relation of these configurations to differentiation of malignant tumor cells is discussed.
6.DMSO INDUCES DIFFERENTIATION OF MURINE ARS ASCITIC RETICULUM SARCOMA CELLS
Acta Anatomica Sinica 1954;0(02):-
Murine ARS reticulum sarcoma cells, when incubated with 1.5, 2.0 and 2.5% DMSO in vitro, were induced to differentiate into macrophage like cells. They showed reduction of cellular and nuclear size and lowering of nucleo-cytoplasmic ratio with marked change in nuclear size. The most effective one was 2.5% DMSO which caused marked reduction of nucleolar size. Tumor cells with nucleo-cytoplasmic ratio less than 0.5 and with reduced nucleoli resembled macrophage. 2.5% DMSO induced the increase of non-specific esterase positive cells and the increase of polystyrene phagocytic percentage and phagocytic index. Under EM, 2.5% DMSO treated ARS cells with nucleocytoplasmic ratio less than 0.5 exhibited abundant cytoplasmic organelles, developed Golgi complex and secondary lysosomes. Scanning EM showed that many large cells with numerous dense slender microvilli were observed in the control. Under the action of 2.5% DMSO, large cells were reduced, small cells were increased and microvilli markedly decreased and shortened. These small cells appeared to be differentiated macrophage like cells and were similar to small cells seen under EM and light microscope. In 2.5% DMSO treated groups, the mitotic index of ARS cells were markedly lowered.
7.Ultrasonic Diagnosis for Gastrointestinal Stromal Tumors
Chinese Journal of Medical Imaging 2016;24(1):36-39
Purpose To evaluate ultrasonography in diagnosis of high recurrence risk gastrointestinal stromal tumors (GIST) by retrospective studying the ultrasound (US) imaging features of GITS. Materials and Methods US features of 72 GIST cases confirmed histopathologically were retrospectively studied. The tumor size, shape, boundary, echogenicity and blood flow of GITS were observed and compared with the results of histopathology. Results Of all the 72 tumors, 34 were originated in the stomach, 14 in the intestine, 2 in the colon, 8 in the rectum, 9 in the mesentery, 1 in the posterior peritoneum, 1 in the omentum and 3 huge masses of non definite origin. There were 7 cases with very low recurrence risk, 14 cases with low risk, 11 cases with intermediate risk and 40 cases with high risk. High recurrence risk group showed no statistical difference in heterogeneous hypoechoes and blood flow (P>0.05), but showed significantly higher rates in following US features:size larger than 5.0 cm, irregular shape, obscure boundary and cyst-solid echogenecity (P<0.001), which showed the sensitivity of 95.0% (32/40), 72.5% (29/40), 25.0% (10/40), and 55.0% (22/40), respectively; and the specificity of 59.4% (19/32), 81.3% (26/32), 90.6% (29/32), and 87.5% (28/32), respectively. Conclusion US can serve as a mean of screening GIST. The recurrence risk can be evaluated based on the tumor size, shape, boundary and echogenecity to guide clinical decisions and prognosis evaluation.
8.Mental disorder of patients receiving intravascular stent Implantation
Chinese Journal of Tissue Engineering Research 2009;13(48):9499-9502
Patients who have received coronary artery interventional therapy exhibit visible anxiety and depression, which is closely related to prognosis and life quality. Therefore, for coronary artery stent patients,exception of anticoagulation and antihyperlipedemic drugs, psychological support, cognition therapy and distorted behavior rectification should be applied. The medication of anti-anxiety or depression is of great importance in ameliorate mental state, relieve mental load, as well as enhance prognosis of patients.
9.Effect of environment variable on the anxiety of military people at high altitude
Chinese Journal of Behavioral Medicine and Brain Science 2008;17(10):924-925
Objective To understand the effect of environment variables on anxiety in the soldiers at high altitude.Methods A total of 267 soldiers at high altitude were investigated with the self-rating anxiety scale,the environmental scale and Eysenck personality questionnaire.Results Compared with norm(29.78±0.46),the soldiers at high altitude had higher sore of anxiety(37.22±6.64;t=17.92,P<0.01).One-way ANOVA and independent.samples t test showed that the anxiety(38.37±5.93,36.65±6.951,36.75±6.88)of military people at high altitude had not evidently difference in different altitude(≥3587.5m,3587.5~2767.9m,≤2767.9m).Parental culture.length of military service(F=3.25,P<0.05)and neuroticism(R=0.52,P<0.01)had evidently effect on the depression of soldiers.Conclusion The occurrence of anxiety in the soldiers at high altitude has a higher level.Parental culture.1ength of military service and neuroticism had predictive value for depression.
10.Research on the design and application of the intelligent control and multi-functional combination of rehabilitation care system in treatment of cerebral apoplexy
China Medical Equipment 2016;(2):33-35
Objective:To design a new rehabilitation system for cerebral apoplexy patients, and help patients complete rehabilitation treatment on the bed.Methods: Design the basic structure of the system through mechanical technology, make the realization of the function by using circuit and wireless control system, global-eye system was embedded in it by using the principle of the 3G to 4G intelligent technology for improving the humanized design of the system. Results:Through application in physical therapy, nursing, clinical rehabilitation, and clinical therapy in hospitals, it achieved good economic and social benefits, got the recognition of patients, clinicians and rehabilitation therapists. Conclusion: It can be used for the treatment of cerebral apoplexy, reduce medical expenditure, save amount of social resource and improve the work efficiency of medical staff.