Hodgkin lymphoma (HL) is a kind of B cell malignancies,which includes classic HL and nodular lymphocyte predominant HL,and there is little known about its etiology and pathogenic mechanism.To early and correctly evaluate the prognosis of patients with HL is the prerequisite to guide their individualized treatment.It has confirmed that some important factors are closely related to the prognosis of patients with HL,such as changes in tumor microenvironment and virus infection.Further research is needed to analyze the composition of tumor microenvironment and the effect of virus infection on the development of HL.These findings can provide new strategies for the prognostic evaluation of patients with HL.PET-CT imaging has obvious advantages in the prediction of treatment response and offers a new way for the assessment of prognosis in patients with HL.

Objective To investigate the changes in 20S proteasome activities in the brain and spinal cord of acute and chronic morphine-dependent mice.Metbods Male ICR mice,weighing 25-30 g,were used in the study.The experiment was performed in 2 parts.In experiment Ⅰ,16 mice were randomly divided into 5 groups (n =8 each) using a random number table:control group (group C) and acute morphine dependence group (AMD group).In experiment Ⅱ,16 mice were randomly divided into 5 groups (n =8 each) using a random number table:control group (group C) and chronic morphine dependence group (CMD group).Acute morphine dependence was induced with morphine 100 mg/kg injected subcutaneously,and the mice were sacrificed 3 h later.Chronic morphine dependence was induced by increasing doses of morphine for 4 days,the initial dose of morphine was 20 mg/kg injected subcutaneously twice a day and was increased by 10 mg/kg every day,the dose of morphine was 10 mg/kg injected subcutaneously on 5th day,and then the mice were sacrificed 1 h later.In group C,the equal volume of normal saline was given instead,and the other treatments were similar to those previously described in morphine dependence groups.After the mice were sacrificed,the hippocampus,prefrontal cortex,striatum and spinalcord were isolated for determination of 20S proteasome activity,measured as chymotrypsin-like (ChT-L),trypsin-like (T-L) and peptidylglutamyl-like hydrolyzing (PGLH) activities.Results Experiment Ⅰ Compared with C group,PGLH activity in the spinal cord and T-L activity in the striatum or prefrontal cortex were significantly weakened in group AMD.There was no significant difference in 20S proteasome activity in the hippocampus between the two groups.Experiment Ⅱ Compared with C group,ChT-L and T-L activities in the spinal cord were significantly weakened,and PGLH activity in the striatum was enhanced in CMD group.There was no significant difference in 20S proteasome activity in the prefrontal cortex and hippocampus between the two groups.Conclusion 20S proteasome activity in the spinal cord and brain is weakened in acute morphine-dependent mice,20S proteasome activity in the spinal cord is weakened,20S proteasome activity in the striatum is enhanced in chronic morphine-dependent mice,these changes have specificity in terms of position and type of activity,and the changes mentioned above may be related to development of morphine dependence in mice.

Proteomics has been applied in a wide range of biomedical research.However,the application of proteomics in studying the molecular mechanism of morphine dependence is only at a preliminary stage.This article introduced the application of proteomics techniques in the study of the molecular mechanism of morphine dependence and the discovery of several potential molecular markers of morphine dependence,which affirmed the importance and potential of proteomics in this research area.Also,it was pointed out that the major tasks of current proteomic study of morphine dependence should include establishing animal and cell models of morphine dependence,selecting appropriate sample source and improving proteomics techniques,so that proteomics can serve as a new approach in the study of morphine dependence to discover new therapeutic targets.

Objective To investigate the effects of hyperuricemia on vascular endothelial function.Methods With high-resolution ultrasound,flow-and nitroglycerin induced dilation,the vasodilation of brachial artery was measured in 30 hyperuricemia male patients and 30 healthy male subjects(control group).Both serum NO and plasma endothelin-1(ET-1) levels were determined at the same time.Results In patients with hyperuricemia,flow-induced vasodilation was much reduced compared with that in the control subjects(P0.05).Plasma NO level in the hyperuricemia group was lower than that in the control group (P

Gene Expression ; Humans ; Neoplasms ; Peroxiredoxin VI

Biomedical Research ; trends ; Humans ; Lymphoma, B-Cell ; Lymphoma, Large B-Cell, Diffuse ; Lymphoma, Non-Hodgkin

Humans ; Immunohistochemistry ; Neoplasms, Germ Cell and Embryonal ; chemistry ; diagnosis ; Transcription Factors

Objective To observe therapeutic benefits of intravenously transplanted hone marrow mesenchymal stem cells (BMMSCs) on alcohol-associated dementia (AAD) rat model and study its underlying mechanisms.Methods BMMSCs were isolated by the method of differential adhesion and membrane antigens were detected with flowcytometric analysis.To establish AAD model,SD rats were intragastricly administrated with ethanol (20％,8ml/kg) for 28 days.Then BMMSCs were labeled with DAPI and injected into the blood via caudal vein.And animals were evaluated by observing Morris Maze behavior,hippocampal morphology and neuronal apoptosis.The expression of BDNF was detected by the method of immunohistochemistry.And the activities of total superoxide dismutase (T-SOD) and glutathione peroxidase (GSH-Px) in rat blood serum were also measured.Results The results of flowcytometry analysis indicated BMMSCs were CD29,CD90-positive,and CD45,CD34-negative.And the cells labeled with DAPI were observed in rat hippocampus 3 days after intravenous injection.Compared with PBS group,the escape latency of rats in BMMSC group was apparently shortened((10.17 ±0.71)s vs.(4.71 ± 0.34)s,P ＜0.01).And the morphological structure was repaired and neuronal apoptosis was reduced in rat hippocampus after BMMSC transplanting((72.67 ± 2.73) vs.(55.5 ± 5.14),P＜0.05).Immunohistochemical results showed that the expression of BDNF was significantly increased in the hippocampus of rats in BMMSC group ((71.54 ± 13.71) vs.(135.25 ± 22.20),P ＜0.05).Also,the activity of GSH-Px was apparently improved in the blood serum of rats treated with BMMSC transplanting ((526.89 ± 62.73) vs.(2592.75 ±243.73),P ＜0.01),but no change for that of T-SOD.Conclusion The results provide a novel therapeutic strategy for improving learning and memory function and reducing hippocampal damage induced by ethanol administration,which is closely related to enhance BDNF expression in the hippocampus and improve the activity of antioxidants.

Mounting evidence supports that a newly identified regulatory T cell (Treg), CD4(+)LAP(+) Treg, is associated with oral tolerance induction and following inhibition of atherosclerosis, but little is described about whether nasal tolerance to antigen likewise induces the novel Tregs production and the relevant antiatherosclerotic benefit. We investigated the effect of nasal administration of heat shock protein-60 (HSP60) on atherogenesis. HSP60 or phosphate buffer solution (PBS) was nasally administered to six-week-old male ApoE(-/-) mice. At the 10th week after the nasal administration, there was a significant decrease in atherosclerotic plaque areas of aortic roots in the HSP60-treated mice as compared with those in the PBS-treated mice. Atherosclerosis suppression was accompanied with a significant increase in CD4(+)LAP(+) and CD4(+)CD25(+)Foxp3(+) Tregs and a concurrently increased production of TGF-β in the HSP60-treated mice. The protective effect of HSP60 was offset by injection of anti-TGF-β antibody. It is concluded that nasal administration of HSP60 can inhibit atherosclerotic formation through immune tolerance which is established by Tregs depending on the induction of anti-inflammatory cytokine TGF-β. Immune tolerance induced by nasal administration of HSP60 may provide an alternative therapeutic method for atherosclerosis.

Objective To compare clinical and laboratory characteristics between systemic lupus erythematosus (SLE) patients with and without cutaneous vasculitis,and to investigate the correlation of cutaneous vasculitis with severe visceral involvement and laboratory biomarkers.Methods A total of 152 SLE patients with various skin manifestations were enrolled from Department of Dermatology of Huashan Hospital affiliated to Fudan University from July 2011 to October 2014.The clinical and laboratory data were collected and retrospectively analyzed.SLE patients with cutaneous vasculitis were divided into upper/lower extremity vasculitis group and livedo reticularis group.A logistic regression model was used to analyze the correlation between cutaneous vasculitis and various clinical and laboratory variables.Results Of 152 SLE patients,62 (41％) presented with cutaneous vasculitis,including 55 with upper/lower extremity vasculitis and 7 with livedo reticularis,and 90 (59％) did not have cutaneous vasculitis.Patients with upper/lower extremity vasculitis showed significantly younger age (30.54 ± 12.67 years vs.37.77 ± 12.17 years),and lower prevalence of aberrantly elevated 24-hour protein excretion (39.39％ vs.64.00％) and serum urea level (2.08％ vs.16.43％),but significantly higher percentage of females (98.18％ vs.84.44％),higher proportions of patients with abnormal brain MRI (37.5％ vs.12.19％),anemia (87.03％ vs.70.93％) and positive antiribosomal P protein antibodies (77.77％ vs.53.65％),and higher SLE disease activity index (SLEDAI) (14.71 ± 7.75 vs.10.68 ± 5.61) than those without vasculitis (all P ＜ 0.05).The proportion of patients with decreased C3 level did not differ between patients with upper/lower extremity vasculitis and those without cutaneous vasculitis (P =0.362),but was significantly lower in the patients with livedo reticularis than in those without cutaneous vasculitis (28.57％ vs.79.76％,P =0.008).However,no significant differences in the other variables were observed between patients with livedo reticularis and those without cutaneous vasculitis (all P ＞ 0.05).Additionally,body mass index (BMI),abnormal lung function and other laboratory variables all did not differ among patients with upper/lower extremity vasculitis,patients with livedo reticularis and patients without cutaneous vasculitis (all P ＞ 0.05).Logistic regression analysis revealed that after exclusion of potential effects of age and gender,cutaneous vasculitis was significantly positively correlated with abnormal brain MRI (OR =4.24,95％ CI:1.17-16.13,P =0.028),and positive anti-ribosomal P protein antibodies (OR =3.97,95％ CI:1.86-8.47,P =0.0004),but negatively correlated with abnormally elevated 24-hour protein excretion (OR =0.25,95％ CI:0.09-0.69,P =0.009).Furthermore,cutaneous vasculitis showed no significant associations with abnormal serum urea level (OR =0.12,95％ CI:0.01-1.06),decreased C3 level (OR =0.93,95％ CI:0.38-2.28),anemia (OR =1.38,95％ CI:0.56-3.40) or SLEDAI (OR =1.05,95％ CI:0.98-1.14).Conclusions Cutaneous vasculitis is closely associated with central nervous system damage and emergence of anti-ribosomal P protein antibodies,so SLE patients with cutaneous vasculitis should be closely monitored for central nervous system damage.SLE patients without cutaneous vasculitis are more liable to kidney injury,so they also need to be closely monitored.