ObjectiveTo investigate the effects of early stage Alzheimer's disease(AD)on white matter(WM)integrity using diffusion tensor imaging(DTI)and its relationship with cognitive function decline.MethodsDTI was performed in 32 subjects,including 14 early AD patients and 18 elder controls(ON)with a 1.5 T MR scanner. Fractional anisotropy(FA)and mean diffusivity(-D)values were computed and compared for 9 regions of interest(ROI).Eight standard neuropsychological tests were performed and compared between AD and ON to evaluate basic cognitive capacities of AD.Correlation analysis was applied between FA,(-D) values and scores of neuropsychological tests for all subjects.ResultsFA significantly decreased in splenium of the corpus callosum and the posterior parietal-temporal region(S2),and D significantly increased in the splenium in AD patients(P＜0.05).AD patients showed lower scores compared with ON in all neuropsychological tests(P＜0.05).FA of the splenium and S2 positively correlated with several tests scores,while (-D) of multiple ROIs negatively correlated with several tests scores (P＜0.05).ConclusionsIn the early stage of AD,neuropathology has effect not only on cognitive function,but also on white matter structure,and they have strong relationship.AD patients show white matter changes in specific regions,which reflect loss in cortico-cortical connections.

AIM: To observe the effect of Jianpixiaoshi Pill (Rhizoma Atractylodis Macrocephalae, Fructus Aurantii Immaturus, Radix Aucklandiae, etc.) METHODS: We conducted the humoral immunity test, intestine peristal sis test, gastric emptying test, gastric analysis test on rat's and mouse's mode ls of splee n weak by oral administration of Rhubarb root lard and cabbag e, respectively. RESULTS: On mice fed on Rhubarb root, Jianpixiaoshi i Pill can effectively potentiate immunity, improve the velocity of stomach and intestine, expedite the advance speed of ink in the small intestine and the velo city of gastric emptying, reduce the residual rate of methyl orange in stomach. On rats fed on lard and cabbage, J ianpixiaoshi Pill can gain mouse's weight improved, increase the total acidity of the gastric juice and the activity of pepsin. CONCLUSION: Jiah pixiaoship Pill has remarkable effect on improvin g the function of intestine and stomach.

Objective To observe the change of composition of PL and content of protein in PS after anatoxin damnify lung.Methods The rats lung injury models were made by intratracheally instilling anatoxin(0.1mg/kg,0.4mg/kg).24 rats were divided into four groups:12hour group,2day group,3day group,5day group.Pr of each group were examined by electron microscope,content of PL,composition of PL and content of protein of each group wete determinde respectively.Results Rats lungs in experimental guoups were found that PS lost continuously,dropped in the pulmonary alveolies.12hour group was more apparent.Content of protein in PS was the highest in 12hour group,Content of PL in PS go add,12hour group was more apparent.Conclusion Morphologic change and alternation of quality and quantity of PS after anatoxin-induced pulmonary injures specifically reflect the activity of lung danmify.Measuring content of PL and PI is sign of simple and feasible method when lungs of the rats are injured early by bleomycin.

Objective To clarify great benefit to prevention of wound infection as well as reduction of economic expenditures by a new method of connecting latex gloves and cigarettes in peritoneal drainage. Methods We randomly selected 121 cases of patients with peritoneal pyogenic infection, divided them into the latex gloves group (64 eases)and the common dressing group (57 cases). The incision infection rate and eco-nomic cost in two groups were comparately studied. Results The latex gloves group's incision infection rate was 10.94% (7 / 64), the common dressing was 31.58% (18/57). Each patient of the latex gloves group spent less cost about 15.70 yuan,changed dressing 5.3 times less than the common dressing group. Conclusions Connecting latex gloves and cigarettes in peritoneal drainage is a new method of reducing economic expandi-tures and the chances of incision infection. Clinical application of this method should be fully prospected.

Objective:To observe the thrombolytic effect of Naoxuebao in vitro and in vivo.Methods:The changes of thrombus in the carotid arterial,plasma fibrinogen (FIB),thrombin time (TT) and the diameter of blood clot were observed using Naoxuebao (three dose groups) after thrombosis.Results:With Naoxuebao,the time of blood clot was longer,the diameter of blood clot was shortened;carotid arterial thrombosis was dissolved.The contents of FIB decreased,TT was longer,and FIB and TT had negative correlation;whereas,PLG had no obious change.Conclusion:Naoxuebao had thrombolytic effect,but the effect had no relation with plasmin activating.

OBJECTIVE To explore the suitable hospital infection control measures in health centers of poverty-striken villages,in order to improve the management of hospital infection,decrease hospital infection rate and protect the health of medical staff and patients.METHODS The status quo of hospital infection in health centers of poverty-striken villages,was investigated in 20 small towns health centers with were randomly divided into two groups:test group(n=15)and control group(n=5).The suitable hospital infection control measures were explored from 5 points.The effect of infection control by before-after controlled study of experimental group and randomized controlled study of control group was anal yzed.RESULTS The rate of hospital infection in test group was decreased from 7.60% to 1.98% and at in control group didn't change,the difference was significant.CONCLUSIONS The managements of establishment of the suitable hospital infection control measures in health centers of poverty-striken villages have been put into practice and gained good result.

OBJECTIVE:To control the drug varieties in our hospital. METHODS:According to Prescription Administrative Policy,the related meetings was hold by Drug Therapy and Pharmacy Administration Committee and monitoring procedure was set up to ensure drug elimination publicly,fair and clearly. Drugs of different specifications with same general name were limited strictly. RESULTS:After implementing drug elimination measure,drugs reserved were in line with national drug control standard. CONCLUSION:Drug elimination applied to control drug varieties can improve drug management in the hospital.

Objective To study the application of SLINKY technique in MRA of head and neck by comparison of four TOF MRA methods. Methods We obtained images on 21 patients and 5 volunteers with SLINKY on all the 26 cases, MOTSA on 18 cases, single volume on 16 cases, and 2D on 12 cases. Three experienced radiologists evaluated the images, unknowing which method the images were. The evaluations included clearness of vessel branches, smoothness of vascular wall, and vascular continuity. Signal-to-noise (SNR), contrast-to-noise (C/Ns), and scan time were measured. Results SLINKY displayed vessel branches better and had better smoothness of vascular wall and vascular continuity than the other three methods(P

Objective To explore the potential value of serum lipoxin A4 (LXA4) in monitoring bacterial load and anti-tuberculosis treatment progression in patients with pulmonary tuberculosis (PTB). Methods From January 2021 to January 2022, forty patients with active PTB, who were admitted to Shaanxi Provincial Tuberculosis Prevention and Control Hospital, were selected as the active PTB group, 38 patients with latent tuberculosis infection (LTBI) were selected as the LTBI group, and 28 healthy volunteers who underwent physical examination in our hospital during the same period were included as the healthy control group. The active PTB patients received a 2-month standard anti-tuberculosis chemotherapy, while the other two groups were untreated. Fasting venous blood was drawn from the three groups at enrollment (baseline), after 2 months of treatment, and upon the completion of 6 months of treatment in the active PTB group to measure serum LXA4 levels using enzyme-linked immunosorbent assay (ELISA). The relationship between serum LXA4 level and clinical manifestations, bacterial load, chest imaging manifestations, and treatment progress was analyzed. Results At baseline, serum LXA4 levels in the active PTB group, LTBI group, and healthy control group were [397.72 (210.68, 573.00)], [178.18 (108.17, 271.87)], and [131.06 (76.24, 166.04)] pg/mL, respectively. The levels in the active PTB and LTBI groups were significantly higher than those in the healthy control group, with statistical significance (P<0.01). According to the grading of acid-fast bacilli (AFB) sputum smears at diagnosis, baseline serum LXA4 level increased in the active PTB group with AFB sputum smear grade (P<0.001), and there was a positive correlation between serum LXA4 level and sputum smear grade (rs=0.209, P=0.003). After 6 months of treatment, the serum LXA4 level in the active PTB group was lower than the baseline value (P=0.002). The serum LXA4 level can predict treatment progress, with a baseline sensitivity of 55.0% (22/40), and after 6 months of treatment, 8 patients (20.0%) still showed positive serum LXA4 levels. Conclusions Serum LXA4 may be a useful biomarker for monitoring the progression of PTB treatment.

Objective　To evaluate the expression of Fas/FasL antigen on peripheral blood T lymphocytes and its possible role in Behcet disease. Methods　The expression of Fas and FasL antigen on peripheral blood T lymphocytes was determined by flow cytometry and three-colour double marked immunofluorescence methods in 26 patients with Behcet disease and 43 healthy individuals. Results　The difference was significant between Behcet disease (25.70%±7.32%) and controls (14.02%±6.30%) concerning the Fas expression on CD4+ T lymphocytes(P＜0.01) . But no difference was found concerning the expression of FasL antigen between Behcet disease and controls (P＞0.05).The expression of Fas antigen on CD8+ T lymphocytes from Behcet disease (9.47%±6.97%)was significantly higher than that in control group(3.47%±2.75%), but no difference was found concerning FasL antigen expression on CD8+ T lymphocytes between Behcet disease and controls(P＞0.05).Conclusion　These results indicate the imbalance of the expression of Fas and FasL on T lymphocytes in Behcet disease is responsible for the perpetuation and recurrence of Behcet disease for the activated lymphocytes would not be eliminated through apoptosis mediated by Fas/FasL system.