Arthritis, Juvenile ; complications ; Child ; Female ; Humans ; Macrophage Activation Syndrome ; complications

We predicted the anti-ulcerative colitis (UC) mechanism of Fructus Amomi based on network pharmacology. The anti-UC activity of Fructus Amomi were investigated by in vivo animal experiment, and the active components of Fructus Amomi were obtained through TCMSP, PubChem database and literature research. Animal welfare and experimental procedures follow the regulations of the Animal Ethics Committee of Institute of Materia Medica of Chinese Academy of Medical Sciences. The potential targets of the active components and UC were predicted by SwissTargetPrediction, GeneCards and TTD databases. The protein-protein interaction (PPI) network was constructed by String database and Cytoscape software was used to construct a visual network of active component-disease target and perform topological analysis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed using Metascape platform. The molecular docking of key components and core targets was carried out by Sybyl X software. We screened out a total of 12 active components and 189 disease-component overlapping targets. Enrichment analyses obtained 227 related GO items and 168 signaling pathways. According to the results of molecular docking, most active components of Fructus Amomi showed good affinity with the JAKs receptor family. Furthermore, Western blot results verified that Fructus Amomi could effectively inhibit JAK/STAT signaling pathway, indicating that Fructus Amomi might exert the anti-UC activity by regulating JAK/STAT signaling pathway.

Background and purpose:Pterostilbene is a natural antioxidant, whose role in retinoblastoma remains unclear. The aim of this study is to probe the effects of pterostilbene on the proliferation, apoptosis and autophagy in retinoblastoma WERI-Rb-1 cell lines.Methods:Cell counting kit-8 (CCK-8) assays were used to analyze the effects of pterostilbene on the proliferation of WERI-Rb-1 cells. Apoptosis rate was determined by Annexin V/PI. Autophagic vacuoles were observed by acridine orange staining. LC3 and P62 protein expressions were determined using Western blot.Results:Pterostilbene significantly inhibited the proliferation of WERI-Rb-1 cells (P<0.01). The cell viability were (93.02±0.47)%, (55.10±2.04)% and (30.33±1.45)% after WERI-Rb-1 cells were treated with 25, 50 and 100 μmol/L pterostilbene for 24 h, and the cell viability were (88.38±3.70)%, (53.37±1.17)%, (29.60±1.05)% after WERI-Rb-1 cells were treated with 50 μmol/L pterostilbene for 12, 24 and 48 h. Pterostilbene induced cell apoptosis (P<0.01), the apoptosis rates of control group, 24 h treated group and 48 h treated group were (4.08±0.79)%, (13.44±2.12)% and (23.49±2.01)%. Pterostilbene induced autophagy of WERI-Rb-1 cells, increased LC3 expression, downregulated P62 expression and increased the number of autophagic vacuoles in WERI-Rb-1 cells (P<0.01). 3-MA and Beclin1 were able to rescue pterostilbene-induced cell death (P<0.01). After 3-MA was used to blunt autophagosome formation, the apoptosis rate markedly decreased in 3-MA+pterostilbene-treated cells compared with cells treated with pterostilbene alone [(12.97±2.09)%vs (8.35±1.11)%], and after siRNA was used to knockdown Beclin1, the apoptosis rate had the same change [(13.80±2.19)%vs (9.62±0.52)%].Conclusion:Pterostilbene can inhibit the proliferation of WERI-Rb-1 cells and induce cell apoptosis via autophagy activation.

The writing of vocational college thesis is the maln way to test whether the students are able to analyze and solve practical problems with the professional knowledge and skills they've learnt, as well as improve the capability of production and practice. This paper analyzes the present situation of the thesis written by higher vocational college students majoring in pharmaceutical sci-ences, and figures out the four kinds of evaluation standards about graduation thesis for students in various pharmaceutical fields with different problems. The four kinds of evaluation standards includes key point analysis on Standard Operation Procedure (SOP), planning strategy for pharmaceutical mar-keting, investigation of rational use of drugs in hospitals and subject research. The author puts forward the solving method for the problem, and formulate the evaluation requirements.

Objective To study the expression and value of CXCR1 and CXCR2 on neutrophils, CD14~+ monocytes and CD3~+ T lymphocytes of peripberol blood of ankylosing spondylitis(AS)patients and to investigate the correlation between CXCR1,CXCR2 and disease activity.Methods A case control study was designed and enrolled 30 active AS,30 active rheumatoid arthritis(RA)and 30 healthy controls.The levels of CXCR1 and CXCR2 expression on neutrophils,CD3~+ T cells and CD14~+ monocytes of peripheral blood of the patients and healthy controls enrolled were measured and analyzed by flow cytometry by measuring the mean fluorescence intensity(MFI)channel.The correlations between the level of CXCR1 and CXCR2 anti disease activity or functional index of AS such as BASDAI,BASF1,ESR and CRP were analyzed.Results The MFI of CXCR1 expression on CD3~+ T lymphocytes of peripheral blood was significantly higher in AS patients (41?24)than that in RA patients(18?10)and healthy controls(19?7)(P

Adenocarcinoma ; metabolism ; pathology ; Chromogranin A ; metabolism ; Colonic Neoplasms ; metabolism ; pathology ; Humans ; Immunohistochemistry ; methods ; Proliferating Cell Nuclear Antigen ; metabolism ; Staining and Labeling ; methods ; Vimentin ; metabolism

Objective To study the prevalence, clinical characteristics and risk factors of HIV-related lipodystrophy syndrome (HIV-LD) in our cohort of HIV-1 infected Chinese adults. Methods In a cross-sectional study, 55 HIV-infected patients were recruited from the HIV clinic of Peking Union Medical College Hospital; most of them were undergoing the first-class highly active antiretroviral therapy (HAART) of today in China. Lipoatrophy or lipohypertrophy was defined if there was concordance between the report of fat change and clinical examination of the participants. Whole body dual-energy X-ray absorptiometry (DEXA) scanning was performed. Results Prevalence of clinical body fat redistribution in the present study was 47.3%. Comparing with non-LD patients, HIV-LD patients had elder age and longer exposure to HAART(P<0.05). HAART exposure and stavudine(d4T) usage were two independent risk factors for HIV-LD. Conclusions HIV-related fat redistribution does exist in Chinese HIV population. Peripheral lipoatrophy occurs commonly in HIV-infected adults but is not associated with increased trunk fat. HAART exposure and especially d4T usage are independent risk factors for HIV-LD.

Objective To increase the awareness of autoimmune pancreatitis (AIP) and correct diagnosis rate of AIP by investigating radiologic characteristic of AIP and small pancreatic cancers.Methods The clinical data and radiologic imaging of 24 AIP patients who met the Asia diagnostic criteria of AIP in 2008 and 25 cases of pathologically condirmed small pancreatic cancer were retrospectively reviewed.All imaging findings were reviewed,especially on the shape,enhancement patterns of mass,pancreatic ducts,peripancreatic and extra-pancreatic manifestations. Chi-square test and Fisher test were used for statistical analysis.ResultsThe imaging signs,including location of masses,distal pancreatic atrophy,enhancing mass during portal phase,truncated duct sign of pancreatic duct,capsule-like rim and renal involvement,was significantly different between AIP and small pancreatic cancer ( x2 =9.010,10.506,15.488,8.688,6.292 and 4.966 respectively,P ＜0.05 ).But only two signs,distal pancreatic atrophy and enhancing mass during arterial and portal phase,were statistically different between local AIP and small pancreatic cancer (P ＜0.05).ConclusionsThe typical imaging features of diffuse AIP is distinct and helpful for the differential diagnosis of AIP from small pancreatic carcinoma,but there is limited value in the differential diagnosis between local AIP and small pancreatic cancer.

Objective To investigate the immunoregulatory effects of bone marrow-derived mesenehy-real stem ceils (BMSCs) combined with leflunomide (LEF) on mice T-lymphocytes in vitro. Methods BMSCs from BALB/c mice were isolated and expanded. The purity of BMSCs was identified by flow cytometry (FCM). The BALB/c mice's spleen lymphocytes were isolated by using EZ-Sep<'TM> Mouse 1X. Under ConA stimulation, spleen lymphocytes were pretreated with LEF, then washed and co-cuhured with BMSCs. We set up four groups to investigate in this study: group A, spleen lymphocytes alone; group B, spleen lymphocytes with BM- SCs; group C, LEF-pretreated spleen lymphocytes alone and the group D, LEF-pretreated spleen lymphocytes with BMSCs. T-lymphocytes proliferation was assessed by MTT. FCM was used to analysis T-lymphocytes apoptosis and surface markers of CD69 and CD28. The mRNA expression of interleukin (IL)-2, IL-10 were detected by real-time RT-PCR. Results In vitro, the T-lymphocytes'values of A570 nm were significantly lower in group B and group C, compared with group A (group B vs group C vs group A, 0.578±0.042 vs 0.502± 0.040 vs 0.778±0.035, P<0.01), while the value of A<,570 nm>in group D was 0.218±0.033, which was also obviously lower than that in group B and group C (P<0.01). There were no suppressing effects on T-lympho-cytes'activation and expression of IL-2 had been observed. The proportion of apoptotic T-lymphocytes in group B and group D were (2.29±0.32)％ and (4.22±0.98)％, which was significandy lower than that in group A (8.08±1.20) (P<0.01). The expression of IL-10 in group B and C were also lower than that in group A (group B vs group C vs group A, 0.098±0.039 vs 0.054±0.022 vs 1.000, P<0.01 ). Either, the expression of IL-10 in group D was 0.023±0.015, which was obviously lower than that in group B and group C (P<0.01). Conclusion BMSCs combined with LEF show synergistic immunoregulatary effects on mice's T-lymphoeytes.

Objective To explore the effect of Numb on tubular epithelial-to-mesenchymal transition (EMT) in rat proximal epithelial cells. Methods NRK52E cells were treated with different concentrations of recombinant human transforming growth factor-β1 (TGF-β1) (0, 1, 5, 10, 15, 20 μg/L) for 48 h or 10 μg/L TGF-β1 for different times (0, 24, 48, 72 h) in vitro. The expressions of E-cadherin, a-smooth muscle actin(α-SMA) and Numb in NRK 52E cells were detected by RT-PCR, Western blot and immunofluorescence staining. Meanwhile Numb siRNA oligo was transfected into NRK 52E cells with lipofectamine before TGF-β1 treatment, then Western blot was applied to detect the protein expression of E-cadherin, α-SMA and Numb in NRK52E cells. Results TGF-β1 could induce EMT in NRK52E cells in dose- and time-dependent manner. During the progress of TGF-β1-induced EMT, the protein expression of Numb in 5, 10, 15, 20 μg/L group was 1.33 folds (P=0.024), 1.39 folds (P=0.035), 1.45 folds (P=0.025), 1.51 folds (P=0.000) respectively as compared to 0 μg/L group. Likewise, the protein and mRNA expression of Numb in 24 h, 48 h, 72 h group was 1.48 folds (P=0.046) and 1.56 folds (P=0.012), 1.54 folds (P=0.011) and 1.82 folds (P=0.008), 1.79 folds (P=0.028) and 1.82 folds (P=0.002) respectively as compared to 0 h group. Moreover, large amount of Numb was accumulated in the cytoplasm. Down-regulation of Numb expression by siRNA transfection did not influence the basal expression of E-cadherin and α-SMA in NRK 52E cells, but attenuated the progression of EMT in NRK52E cells induced by TGF-β1. The up-regulation of α-SMA protein was reduced to 18.1% (P=0.004) while the down-regulation of E-cadherin protein was reversed to 2.19 folds (P=0.004). Conclusion Numb can promote EMT in rat proximal epithelial cells.