In this article,We determined the basic immune function level in 30 herion addicts.The re-sults showed that herion had evidoutly injuring effect on fluid immunity and cellular imunity;The content of Serum IgA、IgG、IgM in heroin addicts was lower than that in control sespcidllythe IgA (P0.05);The cellularimmune function suffered notable damage:Compared wich controls,in heroin addicts T—lym-phocytes transormation rate,LTT、CD_3、CD_4 evidentlydecreased in heroin addicts (P

Medical equipment plays a critical role in the development of modern hospital,which should be exerted all effects so that they could bring more economic and social benefits.Scientific ways of management are put forward.In practice,the problems in management system are solved,and the target of "the quality and benefit via management" is met.

One pathogenic free-living amoeba, strain W042302 (Fig. 1.), was first isolated from the cooling water of a power plant in Shanghai, in April, 1986. It could result in the deaths of mice, and recovered from the brain tissue of the dead mice. This pathogenic free living amoeba could be induced into trophozoite with two flagellae (Fig. 2.). Protein patterns obtained by PAGE showed twelve bands stained by Coomassie brilliant blue R250. The isoenzyme patterns of both acid phosphatase and alkaline phosphatase of the amoebic extract exhibit only a single band, while iactate dehydrogenase is devoid of noticeable activity. From the results obtained in the present study, it is inferred that strain W042302 may be belong to Naegleria australiensis.

Objective To investigate the changes in bone age, and the correlation between the changes in structure and function of cardiovascular and bone age index in children with left to right shunt congenital heart disease (CHD) such as atrial septal defect (ASD), ventricular septal defect (VSD) and patent ductus arteriosus (PDA). Methods One hundred and thirty children diagnosed CHD had been enrolled, including 52 cases of ASD, 46 cases of VSD and 32 cases of PDA. The cardiac structure and function indicators had been detected by ultrasonic. The anteroposterior iflm of left hand and wrist had been taken. The bone age had been assessed according to“China children bone age score”atlas, and the bone age index (BAI) had been calculated. The differences of bone age among each group had been compared. The linear correlation of the cardiac structure and function indicators with BAI had been analyzed. Results The BAI was statistically different among ASD, VSD and PDA groups (P<0.05). The BAI of PDA group was higher than those of ASD and VSD groups (all P<0.05). The BAI was also statistically different among the groups with different pulmonary artery pressures (P=0.000). The BAI was higher in small defect size group than that in large defect size group (P=0.002). The defect size was negatively correlated with BAI in both ASD and VSD groups (r=-0.48, -0.54, all P<0.05), The pulmonary artery systolic pressure and pulmonary-to-systemic blood lfow ratio (QP/QS) were negatively correlated with BAI in ASD, VSD and PDA groups (r=-0.64--0.38,all P<0.05). Conclusion The bone age and BAI of children with left to right shunt CHD are signiifcantly lower than those of healthy children of the same age . The extent of bone age delay is related with PASP, defect size and shunt volume in children with left to right shunt CHD.

Objective To analyze the clinical manifestations as well as correlation between clinical manifestations and the new neuroimage characteristics(pontine"cross sign"and"putaminal slit")for correct diagnosis of multiple system atrophy(MSA).Methods Eleven patients with MSA based on Gilman diagnostic criteria were retrospectively analyzed for clinical manifestations and brain MRI findings.Results Eleven patients were probably diagnosed as MSA,among which 8 patients were MSA-C(olivopontoeerebellar atrophy,OPCA),2 patients were MSA-P(striatonigral degeneration,SND),one patient was MSA-A(Shy- Drager syndrome,SDS).Five years after onset,MRI of MSA-A showed stage 0"cross sign"and "putaminal slit".In 8 patients with MSA-C,2 patients reached stage Ⅰ 3 years after onset,one patient reached stage Ⅱ 2 years after onset,3 patients respectively did stage Ⅲ 1 year,3 years,and 5 years after onset,2 patients reached Ⅳ stage 2 years,and 7 years after onset respectively.As for putaminal slit,all of these patients were in stage 0.One patient with MSA-P reached stage 0"cross sign"and stage Ⅰ "putaminal slit"6 years after onset;another patient showed stage Ⅳ"cross sign"and stage Ⅱ"putaminal slit"9 years after onset,which was high slit intensity on both sides,however much stronger in the fight side than in the left side.Conclusion Both"cross sign"and"putaminal slit"are neuroimage characteristics for early diagnosing MSA-C,while"putaminal slit"for MSA-P.

[Objective]To measure the in vivo knee joint reaction force in a rabbit model of tibial diaphyseal lengthening.[Method]Sixteen immature (8 weeks old) New Zealand White rabbits were underwent 30% (left) tibial diaphyseal lengthening at a rate of two 0.4 mm incremental lengthenings per day.The knee joint reaction force was measured at the end of lengthening (8 rabbits,13 weeks old) and 5 weeks later (8 rabbits,18 weeks old).An instrumented bilateral distractor and an extensometer were fixed cross the knee joint.The joint distraction force and distraction displacement were measured immediately after each incremental distraction of the joint.[Result]The joint reaction force on the lengthened side was significantly higher than that of the control side at both time points (44.4?7.8 N v.27.2?4.0 N at 13 weeks of age,44.3?6.5 N v.31.3?3.0 N at 18 weeks of age).[Conclusion]The knee joint reactive force could be increased in 30% tibial disphyseal lengthening which potentially could lead to the risk of damage to artic ular cartilage.

[Objective]To evaluated the distraction-resisting force contributed by gastrocnemius during tibial lengthening.The force contributed by gastrocnemius during both the distraction and consolidation phases in a rabbit model of tibial lengthening were measured by an in-line strain gauged bilateral fixator.[Method]Sixteen immature New Zealand White rabbits underwent 30% (left) tibial diaphyseal lengthening at a rate of two 0.4 mm increments per day.[Result]The contribution of the gastrocnemius distraction-resisting force at the end of lengthening (11?5N,25%?7%) was statistically higher than that of 5 weeks later (3?1 N,13%?5%)(P

Recent studies have found that autophagy was not only involved both in the occurrence and development of viral myocarditis (VMC),but also,it plays a key role in anti-viral infections by degradating the viral components,presenting viral antigens and activating the immune response.Meanwhile,the virus can also escape the protective antiviral activity and maintain their own survival and replication by inducing the autophagy of the host cells,becoming the accelerator of the viral infection.The interaction of the virus and the host cell autophagy in VMC is a complex process.Its detailed pathogenesis has yet to be further explored.

Objective To investigate the features of the mixed epithelial and stromal tumor of kidney (MESTK) and cystic nephroma (CN) on multi-detector CT (MDCT), in order to improve the accuracy of preoperative diagnosis and differential diagnosis. Methods Based on blind-retrospective review, CT features of 6 MESTK patients and 6 CN patients were reviewed retrospectively, and compared with pathological results postoperatively. Results All the lesions were single regular multi-cystic masses. Five patients with MESTK were diagnosed as Bosniak Ⅲ and 1 as Bosniak Ⅳ. In contrast, 6 of CN were all diagnosed as Bosniak Ⅱ. Six MESTK lesions were all consisted of irregular mixture of solid and cystic components, and the average thickness of septa was 0.93 cm. Six CN lesions were entirely cystic masses without solid components, and the average thickness of septa was 0.23 cm. After contrast enhancement, the solid components of MESTK and the cystic wall of CN presented mild-to-moderate delayed enhancement. Conclusion Some signs on multi-detector CT can help to differentiate MESTK and CN, especially the presence of solid components of the tumor.

Deep venous thrombosis is a common and serious complication after orthopedics operation, with the characteristics of high incidence rate and death rate, its formation mechanism and the treatment is becoming more and more attention of scholars. Establishment of animal model of deep venous thrombosis can further explore the pathological process of thrombosis or dissolution, is an important means to research of thrombosis mechanism and evaluation of therapeutic method. This review discussed the basic principle of deep venous thrombosis, the selection of experimental animals and making method of animal models.
Animals ; Disease Models, Animal ; Venous Thrombosis ; etiology