Objective To observe the dynamic levels of IL-2,IL-5 and IL-6 produced by Balb/ c mice infected with DEN_2 clinical strains and to study their relation.Methods The Balb/c mouse in- feetion model was established by multiple-site subcutaneous injection with various doses of DEN_2 clini- cal strain.Mouse plasma samples collected from different experiment groups at various time after in fection were tested for IL-2,IL-5 and IL-6 levels with sandwich ELISA.Results After primary in- feeted with DEN_2 B strain,the levels of IL-2,IL-5 and IL-6 of all experimental groups were not sig- nificantly higher than the normal control group while the levels of experimental groups increased sig- nificantly after re-infection.The level of IL-2 reached to peak[average value of(101 522.44?10 465.375)pg/ml]at the 4th day after re-infection(the 20th day after the primary infection),and then the level gradually reduced.The levels of IL-5 in the Balb/c mice of the group 1 and 2 reached to peak at the 1st day after re infection(the 16th day after the primary infection),and there was signifi- cant difference between these two groups and the control group(P＜0.05).The levels of IL-6 in all experimental groups reached to peak at the 1st and the 2nd day after re-infection.The peak value of the third group is the highest comparing with the normal control group(P＜0.05).Conclusion Th2 response was predominant in the second infection phase.

Objective To investigate the correlation and clinical significance between CTGF of fibrosis marker and coronary heart disease .Methods Totally 102 cases of coronary heart disease patients by coronary artery angiography ensured were used as coronary heart disease group ,98 cases with age and sex strict matching of coronary heart disease were normal and were used as con-trol group;T test was used to analysis the difference with disease group and control group at base clinical data ,serum CTGF and TGF-β1 ,the correlation between coronary heart disease and serum CTGF level was evaluated by logistic regression analysis ,and clinical diagnosed value was evaluated .Results Triglyceride ,total cholesterol ,apolipoprotein A1 ,high density lipoprotein ,lipopro-tein alpha ,low density lipoprotein ,TGF-β1 and CTGF in coronary heart disease group were significantly higher than those in control group(P<0 .05) .Spearman correlation analysis showed that CTGF and TGF-β1 were positively correlated (r=0 .773 ,P=0 .002) . Serum CTGF can play positive role in the evaluation of the risk stratification of coronary heart disease .Conclusion Age ,smoking , hypertension ,total cholesterol ,apolipoprotein A1 ,high density lipoprotein ,low density lipoprotein ,lipoprotein alpha ,CTGF and TGF-β1 were influencing factors for coronary heart disease .Detection of CTGF in clinical work can be used as assessment coronary artery stenosis and severity index .

Objective To study the chemical constituents from the roots of Dryopteris championii.Methods The compounds were isolated by column chromatography with Sephadex LH-20 and silica gel and preparative thin layer chromatography.The structures of the compounds were identified by physico-chemical properties and spectral evidence.Results Ten compounds were identified as aspidin-BB (Ⅰ), aspidin-AB (Ⅱ), aemulin-BB (Ⅲ), methylene-bis-desaspidinol (Ⅳ), pseudo-aspidinol B (Ⅴ), methyl-phlor-butyrophenon (Ⅵ), desaspidinol (Ⅶ), hop-22(29)-ene (Ⅷ), ?-sitosterol (Ⅸ), and (E)-3-nonacosene-2-ketone (Ⅹ).Conclusion Compound Ⅰ-Ⅳ, Ⅵ and Ⅶ are isolated from this plant for the first time.Antitumor effects of aspidin-BB are investigated.

OBJECTIVETo study the effect of ethyl acetate fraction of Blumea balsamifera (BBE) residue on treating rats of adjuvant arthritis (AA) and its mechanism.

METHODThe rats were immunized with the Freund's complete adjuvant (FCA). After modeling, 28 days' treatment with BBE was performed. During the experimental process, rat mass, toe girth, arthritic index (AI), proliferation of immune organs and pathological section were measured. After treatment, blood samples were collected through fossa orbitalis vein for detection of serum SOD, MDA, GSH, NO, OH*, ALP, AST, ALT, NAG and SA content using colorimetric method and IL-1, IL-6, TNF-α content using ELISA method.

RESULTAdministration with BBE (high dose) could significantly ameliorate joint swelling and arthritis index, effectively inhibit synovial hyperplasia, down-regulate the levels of MDA, NO, OH*, ALP, AST, ALT, NAG, SA, IL-1, IL-6, TNF-α and up-regulate the SOD and GSH levels in serum.

CONCLUSIONThe results suggested BBE possesses substantial anti-arthritis and antioxidant activities.

Acetates ; Animals ; Anti-Inflammatory Agents, Non-Steroidal ; administration & dosage ; isolation & purification ; Arthritis, Experimental ; blood ; drug therapy ; metabolism ; Asteraceae ; chemistry ; Drugs, Chinese Herbal ; administration & dosage ; isolation & purification ; Humans ; Interleukin-1 ; blood ; Interleukin-6 ; blood ; Male ; Malondialdehyde ; blood ; Oxidative Stress ; drug effects ; Rats ; Rats, Sprague-Dawley ; Tumor Necrosis Factor-alpha ; blood

Objective To investigate the correlation between the expression changes of brain-derived neurotrophic factor (BDNF) in colon mucosa and abdominal pain in irritable bowel syndrome (IBS). The density of nerve fiber in colon mucosa and ultrastructural alterations of nerve fiber in IBS were also observed. Methods From September 2008 to January 2010,the IBS patients who visited the department of gastroenterology of our hospital and met the Rome Ⅲ diagnosis criteria were selected and divided into IBS with diarrhea (D-IBS) and IBS with constipation (C-IBS) according to their clinical features. The patients with colon polyps detected by colonoscopy in our hospital were selected as control group. All subjects were asked to fill in Self-Rating abdominal pain or abdominal uncomfortable Scale according to abdominal symptom in the last 2 weeks before visit and underwent colonoscopy. Four biopsy specimens were taken from the colon mucosa of rectosigmoid junction. Ofwhich,two specimens were for protein isolation and detection of BDNF expression level,one specimen was used for PGP 9. 5 immunohistochemistry staining in paraffin slices. Another specimen was used to observe the ultrastructure changes of nerve fiber in colon mucosa under transmission electron microscopy. Results Total 40 IBS patients were enrolled in this study,of those 21 were D-IBS patients,19 were C-IBS patients,and 21 were controls. The abdominal pain severity score and frequency score of IBS patients were (2. 3±0. 8) and (2. 1±0. 7),which were significantly higher than those of control group (0. 4±0. 7 and 0. 3±0. 5,P＜0. 001). Compared with the control group,the BDNF expression in colon mucosa was significantly elevated in IBS patients (P= 0. 003 ),and which correlated with the severity and frequency of abdominal pain/discomfort (r=0. 57,P＜0. 001and r=0. 46,P= 0. 003,respectively). The immunohistochemistry result indicated that the nerve fiber density in colon mucosa of IBS patients was significantly higher than that of controls,and there were ultrastructural changes of colon mucosal nerve fibers in IBS patients. Conclusion Increased colon mucosal BDNF expression may be associated with abdominal pain symptom in IBS patients. The impaired ultrastructural of mucosal nerve fibers may cause the increased BDNF expression in colon mucosa,and result in the increased mucosal nerve fiber density in IBS patients.

Objective To observe the role of brain-derived neurotrophic factor (BDNF) in the plasticity of enteric nervous-smooth muscle system,and to investigate the effects of BDNF induced plasticity on gastrointestinal motility in mice.Methods Male hybrid BDNF knockout (BDNF+/) mice and wild type (BDNF+/+) mice were selected,eight in each group.Gastrointestinal motility of BDNF+/+ mice and BDNF+/ mice were tested and compared.Longitudinal muscle strips of mice colon smooth muscle were prepared.The effects of carbachol (1 × 10 5 mol/L) and BDNF (1 × 10 7 mol/L) on contractile function of muscle strips were observed.And the effects of tetrodotoxin (TTX,1 × 10-6 mol/L) on BDNF induced contractile function of muscle strips were also studied.The changes of the density of mice intestinal myenteric plexus and the expression of smooth muscle α-actin (α-SMA) in colon smooth muscle were detected by immunohistochemical techniqne.The ultrastruetural alterations of myenteric plexus,neuromuscular junction (NMJ) and smooth muscle cells were detected by transmission electron microscope (TEM).T-test or Rank sum test was performed for comparison between groups.Results Number of feces particles and water content in feces of BDNF+/-mice ((3.80±0.75) and (39.60±1.47)％) were both lower than those of BDNF+/+ mice ((6.30± 1.03) and (51.00± 1.61) ％),and the differences were statistically significant (t=4.792,12.827;both P＜0.05).Carbachol (1 × 10-5 mol/L) could significantly increase contraction activity of smooth muscle of BDNF+/+ mice (R =3.26 ± 0.43) and BDNF+/-mice (R=2.15 ± 0.36),and the difference was statistically significant (t=15.754,9.632;both P＜0.05).The effects on contraction exciting of smooth muscle strips of BDNF+/+ mice were more significant than BDNF+/ mice,and the difference was statistically significant (t =5.972,P＜0.05).BDNF could significantly increase contraction of muscle strips of BDNF+/+ mice and R value increased from 1 to 1.41±0.09,and the differences were statistically significant (t=13.674,P＜0.05).TTX could obviously inhibit the excitatory effects of BDNF,R value decreased from 1.41 ± 0.09 to 1.03 ± 0.04 (t=11.692,P＜0.05).The density of myenteric plexus of BDNF+/ mice (median 5.8％,interquartile range 4.2％-7.0％) was significantly lower than that of BDNF+/+ mice (median 9.0％,interquartile range 7.1％-10.8％),and the difference was statistically significant (Z =3.730,P＜ 0.05).The expression of α-SMA of BDNF+/-mice (median 33.4％,interquartile range 28.8％-38.5％) was significantly lower than that of BDNF+/+ mice (median 44.6％,interquartile range 39.2％-48.8％),and the difference was statistically significant (Z=4.565,P＜0.05).The results of TEM indicated ultrastructural alterations of myenteric plexus,NMJ and smooth muscle in BDNF+/-mice.Conelusionss BDNF could induce the plasticity of morphology and function in enteric nervous-smooth muscle system,which may play an important role in mice gastrointestinal motility.

Objective To demonstrate the manifestations on positron emission tomographycomputed tomography (PET-CT) at different stages in anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis.Methods PET-CT was performed in 10 patients with anti-NMDAR encephalitis at different clinical stages,and the images were analyzed to investigate the relation of metabolic patterns in the images with clinical presentations.Results Except for normal PET-CT images in 2 patients,images in 8 patients at early stage of the disease showed generally increased 2-[18F] fluoro-2-Deoxy-D-glucose(18F-FDG) uptake at frontal and temporal lobe,basal ganglion and cerebellum,indicating hyper-metabolism in these areas,while 2 of them also had mixture of hyper-and hypo-metabolism in parietal-occipital region.In longitudinal analysis of PET-CT images in these 8 cases,starting at basal ganglion,18 F-FDG uptake gradually decreased bilaterally,prominently at left dominant hemisphere and right cerebellum.Conclusions During the course of anti-NMDAR encephalitis,18F-FDG metabolism markedly increases at early stage and then gradually declines at late stage,at frontal,temporal,parietal and occipital lobes,basal ganglion and cerebellum,predominantly at left dominant hemisphere and right cerebellum.However,in relapsing anti-NMDAR encephalitis,18 F-FDG metabolism in brain does not show these characteristics.

The activity of plasma prolidase(PLD)was determined in patients with various chronic liver diseases.It was found that the activity of plasma PLD was increased significantly in 45 patients with cirrhosis and 31 patients with chronic active hepatitis.The plasma level of PLD was not correlated with the serum level of ALP.Plasma PLD was negatively correlated with serum albumin and positively correlated with serum gammablobulin.These findings suggest that the determination of the activity of plasma prolidase may be helpful in the diagnosis of chronic liver diseases.

Objective:BALB/C mice model infected with different Dengue Type 2 virus (DV 2) strains was evaluated and dynamic patterns of humoral immune responses caused by the various viral strains were investigated.Methods:The BALB/C mice were multisubcutaneouly injected by different DV 2 strains. The dynamic changes of the anti-DV 2 IgM/IgG antibody were observed in the infected BALB/C mice by the indrect ELISA and the viremia was observed.Results:The productions of specific antibodies in the infected BALB/C mice after primary and secondary injection with different DV 2 strains showed some difference. Howerer, BALB/C mice infected by the DV 2 B strain from a DHF patient showed the prolonged viremia.Conclusion:The dynamic curve of specific antibody and the viremia induced by various DV 2 strain (DV 2 NGC strain.V.DV 2 B strain) were different in some existence.