Objective To summarize the clinical and imaging characteristics of primary Rosai-Dorfman disease (RDD)in central nervous system in order to understand well its features and improve the diagnosis.Methods The clinical and imaging features in 3 patients with RDD in CNS proved by pathology were retrospectively analyzed in combination with the related literatures.Results The lesions in 2 patients occurred in brain and other lesion in 1 occurred outside the brain.Iso-or slight hyperintensity on T1 WI and marked enhancement of the lesion were found.Single lesion was found in 2 patients near the dura mater and located near the superior sagittal sinus or cervical spinal cord.Multiple lesions in 1 patient were located in the lateral ventricle.Conclusion It’s suggested that single or multiple lesions in dural or spinal meninges located in the midline or near the intracephalic venous system would be considered as RDD in CNS.

Objective To find a simple and effective way for pericardial effusion.Methods Arterial sheath were applied to patients with pericardial effusion when pericardium puncture were performed,and negative pressure drainage bag were connected and aspirated interruptively to no aspiration.1～2 days later,arterial sheath were drawn out.Results 40 cases of pericardial effusion were effectively cured by this method,and clinical effective rate was 100%,and no complication associated with arterial sheath placement was observed.Conclusion Arterial sheath placement is an effective,safe and convenient method for the treatment for pericardial effusion.This method can be routinely applied to pericardial effusion due to different causes.

AIM: Recently,it is widely accepted that atherosclerosis(AS) is an auto-immune related disease and the oxidized-low density lipoprotein(ox-LDL) is the most important AS-related antigen.In order to prevent immune injuries in AS and find new strategies to prevent AS,the immune tolerance of T cells to ox-LDL in vitro was induced in this study.METHODS: Human monocytes were separated from peripheral blood to induce dendritic cells(DCs).DCs were treated with LPS(30 ?g/L),ox-LDL(10 mg/L) and LDL(10 mg/L) for 48 h.Then DCs were mixed with allogenic T lymphocytes to carry out mixed lymphocytes reaction(MLR).CTLA4Ig in different concentrations was added in the MLR of ox-LDL group.MTT method was used to assay the proliferation of T cells and expressed in stimulation index(IS).The CD25 expression and apoptosis of T cells in MLR were tested by flow cytometry.The excretion of IL-2,IFN-? and IL-4 was assayed by ELISpot method.RESULTS: SI in ox-LDL group was higher than that in LDL group significantly(P

Objective To induce the immunoincompetence of T cells to oxidized-low density lipoprotein(ox-LDL)in vitro,in order to prevent immune injuries in atherosclerosis(AS)and to find new strategies to prevent AS.Methods Monocytes were separated from peripheral blood to induce dendritic cells (DC).DCs were treated with LPS(30 ng/m1),ox-LDL(10μg/m1)and LDL(10μg/m1)for 48 h,respectively.Then DCs were mixed with allogeneic T lymphocytes to earry out mixed lymphoeytes reaction (MLR).CTLA4Ig in different concentrations was added into the MLR of ox-LDL group.MTr method was used to assay the proliferation of T cells.The CD25 expression and apoptosis of T cells in MLR were tested by flow cytometry.And the excretion of IL-2,IFN-γ and IL-4 were assayed by ELISPOT method.Results SI of the ox-LDL group was higher than that of the LDL group significantly(DC:T=1:5,1.6717±0.3152vs 1.4250±0.2874.P<0.05;DC:T=1:10,1.5458±0.2748 vs 1.3352±0.2991,P<0.05),and CTLA4Ig inhibited the SI of the ox-LDL group in dose-dependence(CTLA4Ig 1.25μg/ml,0.96±0.30 vs μg/ml 1.29±0.28 vs 1.64±0.33 P<0.05).CTLA4Ig caused the decrease of CD25 expression(CTLA4Ig 1.25 μg/ml,11.26±0.58 vs 14.25±1.02,P<0.05;CTLA4Ig 10μg/rnl 8.42±0.45,P<0.01)and induced apoptosis of T cells in MLR(CTLA4Ig 1.25μg/ml,12.54±3.69 vs 6.09 4-2.24,P<0.05;CTLA4Ig 10μg/ml,26.87±5.06 VS 6.09±2.24,P<0.01).CTLA4Ig caused the decrease of ELISPOT counts of IL-2(CTLA4Ig 1.25μg/ml,386±42 VS 534±54,P<0.05;CTLA4Ig 10μg/rnl,230±27 VS 534±54,P<0.01)and IFN-γ(CTLA4Ig 1.25μg/ml,445±48 VS 672±46,P<0.05;CTLA4Ig 10μg/ml,193±39 VS 672±46,P<0.01),while that of IL-4 increased(CTLA4Ig 1.25μg/ml,401±32 VS 332±41,P<0.05;CTLA4Ig 10μg/ml,453±57 VS 332±41,P<0.05).Conclusion CTLA4Ig can induce T cens immunoin competence to ox-LDL in vitro by inhibiting T cells activation,inducing T cells apoptosis and TH 1/TH2 immune deviation.

Objective To analyze the protein expression changes of retina in diabetic mice using isobaric tags for relative and absolute quantitation (iTRAQ) approach and to study proteins of apoptosis.Methods 8 diabetic mice were chosen as the diabetic model group (DM group),8diabetic mice as the normal control group.The animals were housed in wire-bottomed cages and received normal pellet chow and tap water in a constant environment.After 10 weeks,all mice were killed,and their retina were dissected.After hematoxylin and eosin(H&E) staining,the sections of retina were examined using light microscopy.The changes of protein expression in retina were studied using iTRAQ approach.Expression of apoptosis associated proteins was analyzed using ingenuity pathway analysis (IPA).Results Compared with control group,mice retina in DM group developed looser structures,tissue edema and obvious telangiectasia under light microscopy.Using iTRAQ approach,a total of 348 differential proteins were identified.Among those proteins,16 proteins were related with apoptosis,including Ataxin-10,Protein NDRG1,mucin-4,Aquaporin-1 and annexin A4,etc.There were 8 apoptosis-related proteins in retina with up-regulation,and the other 8 proteins with down-regulation in the DM group.The relationship between these proteins were analyzed and charted by IPA.Conclusions Apoptosis may be involved in the development of diabetic retinopathy.The identification of the apoptosis-related proteins will be helpful for the further study.

Objective To observe the effects of Chinese medicinal herbs with the efficacy of invigorating spleen, upbearing the clear, and tonifying spleen on the obesity degree, fat hormones, and insulin resistance in diet-induced obesity (DIO) rats;To choose better anti-obesity herbs from different Chinese medicinal herbs that can tonify spleen. Methods Among the 130 Wistar rats, 10 were chosen as the blank control group (fed with basal forage), and the remaining 120 were administered with high-fat high-nutrition forage for 13 weeks. According to weight, 50 DIO rats and 10 diet-induced obesity resistance (DIO-R) rats were obtained. DIO rats were divided into model group (normal saline), sibutramine group, invigorating spleen group (Atractylodix Rhizome and Magnoliae Officinalis Cortex), upbearing the clear group (Bupleuri Radix and Aurantii Fructus Immaturus) and medicine for tonifying qi and spleen group (Astragali Radix). All groups received gavage with corresponding drugs. Rats in the blank control group and the DIO-R group received gavage with normal saline. The basal forage was administered to rats in the blank control group, while high-fat forage was continually given to rats in the other six groups. Insulin resistance index (IRI), blood glucose, triglycerides, cholesterol, tumor necrosis factor α (TNF-α) and adiponectin were detected after blood withdrawing. TNF-α and adiponectin in the fat homogenate were examined. Results Compared with the blank control group, body weight, IRI, and cholesterol of rats in the model group significantly increased (P<0.01);adiponectin in homogenate reduced (P<0.01);serum and adipose homogenate TNF-α increased (P<0.01). Compared with model group, body weight, IRI, cholesterol of rats in DIO-R group significantly decreased (P<0.01);adiponectin in fat homogenate increased (P<0.01). Body weight and cholesterol of rats in the sibutramine group significantly decreased (P<0.01), while serum and adipose homogenates TNF-αdecreased (P<0.05, P<0.01). Body weight, IRI and cholesterol of rats in upbearing the clear group decreased (P<0.05, P<0.01);serum and adipose homogenate TNF-α decreased (P<0.05, P<0.01);adiponectin increased in fat homogenate (P<0.05). IRI, cholesterol and serum TNF-αof rats in the invigorating spleen group decreased (P<0.05, P<0.01);adiponectin in serum and adipose homogenate increased (P<0.05). BMI, blood glucose, IRI and cholesterol of rats in Astragali Radix group decreased (P<0.05, P<0.01);TNF-α decreased and adiponectin increased in serum and adipose homogenate (P<0.05, P<0.01). Conclusion Astragali Radix could reduce obesity induced by high-fat forage, and its effects on improving glucose and lipid metabolism disorder and IR are better than the other TCM groups. Its mechanism is related to decreasing TNF-α and increasing adiponectin level.

[ ABSTRACT] AIM:To investigate the preventive effect of Guizhi decoction on myocardial injury after chemical sympathectomy induced by 6-hydroxydopamine (6-OHDA).METHODS:Wistar rats (n=54) were randomly divided in-to 6 groups.Methycobal and Guizhi decoction ( with different proportions between Ramulus Cinnamomi and Radix paeoniae Alba at 2∶1, 1∶2 or 1∶1) were pre-administered to the rats.Immunohistochemical method was used to observe the cardiac sympathetic nerve distribution.The contents of tyrosine hydroxylase (TH), choline acetylaminotransferase (ChAT) and growth-associated protein 43 (GAP-43) in the left ventricle were measured by ELISA.The serum levels of myocardial en-zymes and morphology of myocardial tissues were also observed.RESULTS:6-OHDA successfully induced cardiac sympa-thetic denervation as the contents of TH and GAP-43 in the left ventricle declined significantly.Compared with model group, the content of TH was elevated in both methycobal group and Guizhi decoction groups, while the content of GAP-43 was elevated only in Guizhi decoction groups.The serum levels of myocardial enzymes and the histopathological changes of the cardiac tissues were deteriorated after injection of 6-OHDA, indicating that the myocardial injury was established. Methycobal and Guizhi decoction normalized the abnormal change.Guizhi decoctions at 2∶1 and 1∶1 showed the best effi-cacy.CONCLUSION:6-OHDA-induced sympathetic denervation causes myocardial injury.Guizhi decoction with the proportions between Ranulus Cinnamomi and Radix paeoniae Alba at 2∶1 and 1∶1 effectively alleviate the myocardial injury after cardiac sympathetic denervation induced by 6-OHDA.

OBJECTIVE To evaluate the efficacy and safety of levofloxacin in the treatment of respiratory tract infection in elderly patients. METHODS An open clinical trial was conducted for the treatment of respiratory tract infection in elderly patients.The dosage of the drug was 0.5g once daily injection,the duration of treatment was 7-14 days. RESULTS The total cure rate,the total response rate and the bacterial clearance rate were 56.7%,83.3%,and 82.1%,respectively. CONCLUSIONS Levofloxacin is a drug both effective and safe for respiratory tract infection in elderly patients.The dosage of the drug(0.5g/day) can reach higher clinical effective rate,best tolerance and compliancy.

Aim To investigate the preventive effect of Guizhi decoction on cardiac sympathetic sprouting induced by 4-Methylcatechol (4-MC) . Methods The rat models of cardiac sympathetic sprouting were in-duced by 10 mg · L-1 4-MC ( 10μg · kg-1 body weight, i. p. ) . Guizhi decoctions ( with different pro-portion between Ramulus Cinnamomi and Radix Paeon-iae Alba, 1 : 1, 1 : 2 and 2 : 1) and metoprolol were administered to the rats. Heart rate and electrocardio-gram ( ECG ) were observed, the content of norepi-nephrine (NE), growth associated protein (GAP-43), tyrosine hydroxylase ( TH ) and acetylcholine transfer-ase enzyme ( CHAT) in myocardial homogenate of left ventricular and right atrial were determined by ELISA method, and immunofluorescence assay was used to observe cardiac nerve sprouting and sympathetic distri-bution. Results 4-MC caused cardiac sympathetic sprouting and parasympathetic was not influenced. Heart rate of the model group was improved significant-ly and higher than that of the other groups . Compared with the model group, the content of NE, GAP-43 and TH in left ventricle and right atrium of the metoprolol group and Guizhi decoction group were decreased( P<0.05 ) , and the immunofluorescence result showed that the distribution of TH positive nerve was reduced sig-nificantly(P<0.05). It was demonstrated that Guizhi decoction of the proportion between Ramulus Cinnamo-mi and Radix Paeoniae Alba 1 : 1 and 1 : 2 had the best efficacy, which was similar to the efficacy of meto-prolol. Conclusion Guizhi decoction ( with the pro-portion between Ramulus Cinnamomi and Radix Paeon-iae Alba 1 : 1 and 1 : 2 ) effectively inhibits the cardi-ac sympathetic sprouting induced by 4-MC.

Objective To investigate the relationship between antibiotic use and antimicrobial resistance in Acinetobacter bau-mannii for rational use of antibiotics.Methods Antibiotic use density (AUD)of common antibiotics in hospitalized patients were collected in a tertiary hospital between 2006 and 2010.Clinical isolates of A.baumannii from those patients were collect-ed.The resistance to common antimicrobial agents were tested by disk diffusion method according to Clinical and Laboratory Standards Institute (CLSI,2012)guidelines.Relationship between antibiotic use and antimicrobial resistance in A.baumannii was analysed by SPSS 16.0.Results The resistant rates of A.baumannii isolated from inpatients were high.Consumption of cephalosporins and quinolones were large.There was a positive correlation between the resistant rate of A.baumannii to imi-penem and AUD of carbapenems (r=0.975,P <0.05).The resistant rate of A.baumannii to meropenem showed significantly positive relation to AUD of carbapenems (r= 0.975,P <0.05).Resistant rates of aminoglycosides,quinolones,cephalospo-rins and beta-lactamase inhibitors was not correlated to AUD of those antibiotics.Conclusions We should pay more attention to the high prevalence of resistant A.baumannnii strains.Application of imipenem and meropenem should be strictly controlled.Amikacin and beta-lactamase inhibitors are better choice for empirical antibiotic therapy in the treatment of infections caused by A. baumannii.