Advances in the study of the pathogenesis of squamous cell carcinoma / 中国综合临床

Squamous cell carcinoma, which originates from squamous epithelium or tissue that undergoes squamous epithelial metaplasia, is one of the most common pathological types of solid human carcinoma. Although squamous cell carcinoma can occur in different anatomical locations, its pathogenesis has commonalities and distinctive features. Genetic mutations and abnormal expression of squamous differentiation markers, epigenetic modifications regulating target gene expression, and tumor microenvironment inducing immune escape of cancer cells are all involved in the development of squamous cell carcinoma. At present, great progress has been made in the research on the pathogenesis of squamous cell carcinoma. This article, combined with relevant research in recent years, reviews the pathogenesis of squamous cell carcinoma in terms of genome changes, epigenetic changes, non coding RNA regulation, tumor microenvironment changes and risk factor induction, so as to provide reference for the prevention and treatment of squamous cell carcinoma.

Associations of genetic polymorphisms in Corin with blood pressure responses to salt and potassium intake / 西安交通大学学报(医学版)

【Objective】 Corin, a transmembrane serine protease that can cleave atrial natriuretic peptide precursor (pro-ANP) into atrial natriuretic peptide with smaller bioactive molecules, participates in the pathophysiological process of hypertension and cardiac hypertrophy. The purpose of this study was to explore the relationship of Corin gene variation with blood pressure responses to sodium and potassium dietary interventions. 【Methods】 In 2004, we recruited 514 participants from 124 families in 7 villages of Baoji, Shaanxi Province, China. All the subjects received a 3-day normal diet, a 7-day low-salt diet, a 7-day high-salt diet, and finally a 7-day high-salt and potassium supplementation. Fifteen single nucleotide polymorphisms (SNPs) of Corin gene were selected for final analysis. 【Results】 SNPs rs12509275 were significantly associated with diastolic blood pressure (DBP) response to low-salt diet, while rs3749584 was associated with pulse pressure (PP) response to low-salt diet.SNP rs3749584 and rs10517195 were significantly associated with PP response to high-salt diet. In addition,rs17654278 were significantly associated with systolic blood pressure (SBP) response to high-salt and potassium supplementation, rs2271037 was significantly correlated with DBP responses to high-salt and potassium supplementation, and rs4695253, rs12509275, rs2351783, rs36090894 were significantly associated with PP response to high-salt and potassium supplementation. 【Conclusion】 Corin gene polymorphisms were associated with blood pressure response to sodium and potassium, suggesting that Corin gene may be involved in pathophysiological process of salt sensitivity and potassium sensitivity.

Effect of perioperative hydroxychloroquine on cardiac surgery in patients with systemic lupus erythematosus / 中华胸心血管外科杂志

Objective:To evaluate the effect of perioperative application of hydroxychloroquine on the prognosis of patients undergoing cardiac surgery.Methods:All SLE patients in the Department of Cardiovascular Surgery of the First Affiliated Hospital of Zhengzhou University who took hydroxychloroquine and glucocorticoid for more than 7 days before operation were enrolled in the observation group(28 cases), including 3 males and 25 females, aged(38.3±8.2)years old. Patients who did not use hydroxychloroquine but only used glucocorticoid before operation were included in the control group(24 cases), including 2 males and 22 females, aged(37.9 ±9.8)years old. There was no significant difference in preoperative clinical data between the two groups in terms of sex, age, BMI, course of systemic lupus erythematosus, hemoglobin, albumin, C-reactive protein, ALT, serum creatinine, ejection fraction, diabetes, hypertension, hyperlipidemia, smoking, alcoholism, preoperative atrial arrhythmia, ventricular arrhythmia, atrioventricular block and so on. The constituent ratio of preoperative operation plan was basically the same between the two groups. The postoperative complications and survival of the two groups were compared.Results:There was no significant difference in early clinical indexes between the two groups, such as cardiopulmonary bypass time( t=0.12, P=0.19), chest drainage volume( t=0.30, P=0.77), second thoracotomy hemostasis( χ2=1.17, P=0.46). There was no significant difference in drug-related complications such as new retinopathy, myocardial concentric hypertrophy, atrial arrhythmia( χ2=1.27, P=0.26), ventricular arrhythmia( χ2=0.98, P=0.32), atrioventricular block( χ2=0.06, P=0.82) and other drug-related complications between the observation group and the control group. There was no significant difference between the two groups in postoperative acute heart failure( χ2=1.17, P=0.28), acute liver insufficiency( χ2=1.17, P=0.28), sternal infection and IABP use( χ2=0.47, P=0.50). Compared with the control group, the incidence of acute renal insufficiency after operation was lower in the observation group( χ2=4.51, P=0.04). The incidence of new postoperative pneumonia was lower( χ2=8.26, P=0.01). The length of postoperative antibiotic use, the length of postoperative ICU hospital stay, the postoperative hospital stay and the total cost of hospitalization in the observation group were significantly less than those in the control group( z=2.71, 2.09, 2.02, 2.02, P=0.01, 0.04, 0.04, 0.04). Compared with the control group, the in-hospital mortality rate of patients in the observation group was lower than that in the control group(3.6% vs. 12.5%, χ2=0.47, P=0.50), and the 6-month and 1-year survival rates of the observation group were higher than those of the control group(92.9% vs.83.3%, 92.9% vs.79.2%; χ2=0.41, 2.17; P=0.53, 0.34), but the difference was not statistically significant. Conclusion:Perioperative administration of hydroxychloroquine can significantly reduce the incidence of postoperative acute renal insufficiency and pneumonia, reduce the duration of postoperative antibiotic use, postoperative ICU hospital stay, postoperative hospital stay, and the cost of hospitalization. Hydroxychloroquine may reduce the in-hospital mortality and improve the long-term survival rate after cardiac surgery, but long-term large sample clinical studies are still needed.

Medication guidelines for glucagon-like peptide-1 receptor agonist （2023 edition） / 中国药房

The prevalence of diabetes in China is increasing year by year， and has become a health issue of close concern to the whole society. Glucagon-like peptide-1 （GLP-1） receptor agonist （GLP-1RA）， as a new class of glucose-lowering drugs， is now widely used in the treatment of type 2 diabetes mellitus （T2DM） because of its significant glucose-lowering efficacy and low risk of hypoglycemia. As the level of evidence for its effects on improving cardiovascular system and renal protection and reducing body mass continues to improve， its status in the treatment guidelines for T2DM is gradually increasing. Currently， nine GLP-1RA drugs have been approved for the clinical treatment of T2DM in China. Although all of these drugs exert hypoglycemic effects based on the activation of GLP-1 receptors in the body， the differences in their own structures and natural GLP-1 amino acid homology lead to large differences in pharmacokinetic parameters and clinical efficacy among different analogs. In order to enable clinicians and pharmacists to have a full understanding of the characteristics and clinical evidence of these analogs and to better perform their therapeutic effects， Liaoning Provincial Pharmaceutical Society organized clinical medicine and pharmacy experts to develop a medication guide for nine GLP-1RA drugs to provide a reference for clinical medication needs and promote rational and standardized use by compiling and summarizing the pharmacological characteristics， clinical applications， adverse reactions， interactions， the medications in special populations and medication management.

Clinical and cardiac MR characteristics of heart involvement in patients with Fabry disease / 中华放射学杂志

Objective:To investigate the clinical and cardiac magnetic resonance (CMR) characteristics of heart involvement in patients with Fabry disease (AFD).Methods:From January 2018 to March 2021, eight AFD patients [3 males and 5 females, mean age (50±11) years old, range 26-60 years old] confirmed by genetic testing or pathology in Fuwai Hospital were retrospectively included in this study. At the same time, sixteen patients with hypertrophic cardiomyopathy (HCM) [6 males and 10 females, mean age (46±15) years old] and 16 healthy individuals [6 males and 10 females, mean age (51±11) years old] were included as controls. The clinical baseline data and CMR data of the patients were collected and analyzed. The CMR data were analyzed using the software CVI42, with the corresponding parameters automatically generated. One-way ANOVA or Kruskal-Wallis test was used to compare the differences in the parameters among the three groups. Independent-samples t test, Fisher precise test or Mann-Whitney U test were used for the comparison between each two groups. Results:Statistically significant difference was found in renal insufficiency between the HCM group and the AFD group; No other significant difference was found in other clinical factors and ECG results (all P>0.05). CMR results showed that in the AFD group, there were 5 cases with symmetric or roughly symmetric hypertrophy, and 3 with asymmetric hypertrophy. The late gadolinium enhancement (LGE) showed myocardial enhancement in 5 patients, mainly presenting as multiple intermural enhancement, and partially as local subendocardial enhancement. In the HCM group, fourteen cases suffered mainly asymmetric ventricular septal thickening, with or without thickening of other parts of left ventricular wall; and 2 cases had thickening of middle and distal part of the left ventricle. The LGE showed myocardial enhancement in 14 patients, which manifested as focal or patchy enhancement in hypertrophic myocardium, including focal enhancement in the right ventricular insertion of ventricular septum (more common) and subendocardial enhancement in the middle and far segments of left ventricle. Statistically significant difference was found in the differences between the left atrial anterior posterior diameter, the maximum wall thickness of left ventricular, the left ventricular myocardial mass index (LVMI) and the native T 1 value among the three groups (all P<0.001). However, there was no statistically significant difference in the left atrial anterior posterior diameter and the maximum wall thickness of left ventricular between AFD group and HCM group ( P>0.05). The LVMI in AFD group was higher than that in healthy group and HCM group (all P<0.05). Significant difference was found in the native T 1 value among the three groups, with the native T 1 value of the AFD group [(1 177.4±46.0) ms] was significantly lower than that of the healthy group [(1 244.5±34.3) ms] and the HCM group [(1 278.8±41.6) ms], with ( F=13.10, P<0.001). Conclusions:The clinical characteristics of AFD and HCM are quite similar. When AFD is suspected, CMR imaging should be the first choice for imaging examination. Especially, T 1 mapping imaging can provide important information for the diagnosis of AFD.

The diagnostic value of glucose transporter 1 level of erythrocyte membrane and glucose uptake rate of erythrocytes in glucose transporter type 1 deficiency syndrome / 中华实用儿科临床杂志

Objective:To explore new methods to assist the diagnosis of glucose transporter type 1 deficiency syndrome (GLUT1-DS).Methods:Sixteen children with epilepsy and/or movement disorder carrying the SLC2A1 mutation who admitted to Department of Pediatrics, the First Medical Center, Chinese People′s Liberation Army General Hospital and Department of Nutrition, Shanghai Deji Hospital from October 2019 to October 2020 were retrospectively analyzed.GLUT1-DS was diagnosed based on clinical phenotype, glucose level in CSF and/or genetic testing results.Forty-four healthy children who underwent physical examination in the First Medical Center, Chinese People′s Liberation Army General Hospital during the same period were selected as healthy control group.Glucose transporter 1 (GLUT1) level on the membrane surface of peripheral red blood cells and erythrocyte glucose uptake rate were measured by flow cytometry and glucose oxidase method, respectively.Their differences between groups were compared by the rank sum test.The receiver operating cha-racteristic (ROC) curve was plotted to assess their diagnostic value. Results:Sixteen children were diagnosed as GLUT1-DS.GLUT1 levels of 16 children with GLUT1-DS were significantly lower than those of healthy control group [17.96% (13.43%, 22.12%) vs.27.93% (24.76%, 34.30%), Z=5.249, P<0.001]. Area under curve (AUC) was 0.946, and weighted Kappa was 0.791 ( P<0.001). The erythrocyte glucose uptake was measured in 12 children with GLUT1-DS, which was significantly lower than that of healthy control group [23.14% (14.80%, 26.45%) vs.27.40% (24.61%, 32.82%), Z=2.366, P=0.018]. AUC and weighted Kappa were 0.724 and 0.344, respectively ( P<0.001), showing a poor consistency. Conclusions:GLUT1 level on the surface of human erythrocyte membrane measured by flow cytometry may be a new method to assist the diagnosis of GLUT1-DS.The erythrocyte glucose uptake rate test requires stricter experimental conditions and needs further investigation.

Inhibition of gasdermin D-dependent pyroptosis attenuates the progression of silica-induced pulmonary inflammation and fibrosis

Silicosis is a leading cause of occupational disease-related morbidity and mortality worldwide, but the molecular basis underlying its development remains unclear. An accumulating body of evidence supports gasdermin D (GSDMD)-mediated pyroptosis as a key component in the development of various pulmonary diseases. However, there is little experimental evidence connecting silicosis and GSDMD-driven pyroptosis. In this work, we investigated the role of GSDMD-mediated pyroptosis in silicosis. Single-cell RNA sequencing of healthy and silicosis human and murine lung tissues indicated that GSDMD-induced pyroptosis in macrophages was relevant to silicosis progression. Through microscopy we then observed morphological alterations of pyroptosis in macrophages treated with silica. Measurement of interleukin-1β release, lactic dehydrogenase activity, and real-time propidium iodide staining further revealed that silica induced pyroptosis of macrophages. Additionally, we verified that both canonical (caspase-1-mediated) and non-canonical (caspase-4/5/11-mediated) signaling pathways mediated silica-induced pyroptosis activation, in vivo and in vitro. Notably, Gsdmd knockout mice exhibited dramatically alleviated silicosis phenotypes, which highlighted the pivotal role of pyroptosis in this disease. Taken together, our results demonstrated that macrophages underwent GSDMD-dependent pyroptosis in silicosis and inhibition of this process could serve as a viable clinical strategy for mitigating silicosis.

Intervention ef fect of clinical nursing pathway on the contrast induced nephropathy in percutaneous coronary intervention patients / 中国实用护理杂志

Objective:To investigate the effect of clinical nursing pathway in prevention of contrast induced nephropathy in percutaneous coronary intervention patients.Methods:A total of 118 cases of coronary heart disease patients who had undergo percutaneous coronary intervention in hospital from May 2018 to May 2019 were randomly divided into the intervention group ( n=59) and the control group ( n=59). Participants in the control group received routine nursing, while the intervention group carried out clinical nursing pathway nursing method. The renal index such as serum creatinine, blood urea nitrogen, urine β 2 microglobulin, N-acetyl-beta-D-glucosidase (NAG) were compared before and after intervention between two groups, the incidence of CIN were also compared. Meanwhile, the psychology status and sleep quality was assessed by self-rating anxiety scale (SAS), self-rating depression scale (SDS) and Pittsburgh sleep quality index (PSQI), respectively. Results:The 3 rd day after the operation, serum creatinine, serum urea nitrogen, urine β 2 microglobulin, NAG in the intervention group and control group were (81.06±15.60) μmol/L, (9.43 ± 2.73) mmol/L, (256.87 ± 18.99) μg/L, (19.56 ± 2.44) U/L and (87.87 ± 19.60) μmol/L, (10.55 ± 2.18) mmol/L, (270.45 ± 40.85) μg/L, (20.60 ± 2.13) U/L, respectively. The levels of serum creatinine, serum urea nitrogen, urine β 2 microglobulin, NAG were significantly increased in the intervention group compared to the control group ( t=2.087-2.464, P<0.05). The incidence of CIN in the intervention group were 3.4% (2/59) and 13.6% (8/59) in the control group, the differences had statistical significance ( χ2=3.933, P<0.05). In addition, the scores of SAS, SDS and sleep quality, sleep time, sleep duration, daytime function and total PSQI score were (44.71 ± 8.20), (41.36 ± 6.52), (0.78 ± 0.11), (1.02 ± 0.15), (1.20 ± 0.19), (0.97 ± 0.27), (6.42 ± 0.54), those index were (48.85 ± 6.52), (46.49 ± 8.29), (1.03 ± 0.21), (1.23 ± 0.28), (1.44 ± 0.30), (1.30 ± 0.28), (7.79 ± 0.69), the differences had statistical significance ( t=3.033-12.016, P<0.05). Conclusion:Clinical nursing pathway can improve renal function, reduce the incidence of contrast-induced nephropathy, and improve psychological status and sleep quality of percutaneous coronary intervention patients.

Diabetes Mellitus and Cause-Specific Mortality: A Population-Based Study

BACKGROUND: To investigate whether diabetes contributes to mortality for major types of diseases. METHODS: Six National Health and Nutrition Examination Survey data cycles (1999 to 2000, 2001 to 2002, 2003 to 2004, 2005 to 2006, 2007 to 2008, and 2009 to 2010) and their linked mortality files were used. A population of 15,513 participants was included according to the availability of diabetes and mortality status. RESULTS: Participants with diabetes tended to have higher all-cause mortality and mortality due to cardiovascular disease, cancer, chronic lower respiratory diseases, cerebrovascular disease, influenza and pneumonia, and kidney disease. Confounder-adjusted Cox proportional hazard models showed that both diagnosed diabetes category (yes or no) and diabetes status (diabetes, prediabetes, or no diabetes) were associated with all-cause mortality and with mortality due to cardiovascular disease, chronic lower respiratory diseases, influenza and pneumonia, and kidney disease. No associations were found for cancer-, accidents-, or Alzheimer's disease-related mortality. CONCLUSION: The current study's findings provide epidemiological evidence that diagnosed diabetes at the baseline is associated with increased mortality risk due to cardiovascular disease, chronic lower respiratory diseases, influenza and pneumonia, and kidney disease, but not with cancer or Alzheimer's disease.

The regulatory effect and mechanisms of LncRNA CRNDE in digestive system tumors / 中国医师杂志

Long non-coding RNA regulates gene expression at multiple levels (epigenetics,transcriptional level,post-transcriptional level) and plays an important role in the development and progression of individual development and tumors.With the deep research,it is found that LncRNA CRNDE is an important cancer-related long non-coding RNA,and it is necessary to understand the specific role of LncRNA CRNDE in regulating tumor cell life activities.In recent years,the role of LncRNA CRNDE in tumorigenesis and development has been increasing.It has been found that LncRNA CRNDE is up-regulated in various tumors and is closely related to tumor proliferation,invasion,metastasis and patients' prognosis,becoming a new hot spot in cancer research.The author combines the latest literatures at home and abroad to review the role and mechanism of LncRNA CRNDE in the development of digestive system tumors,hoping to prevent and treat tumors in the future.

Associations between human plasma anti-gliadin antibodies and occurrence of schizophrenia in patients with different ages / 吉林大学学报(医学版)

Objective; To investigate the associations between the levels of human plasma anti-gliadin antibodies and occurrence of schizophrenia in the patients with different ages in Chinese Han population, and to clarify the effects of human plasma anti-gliadin antibodies in the occurrence of schizophrenia. Methods; The plasma samples were collected from 313 schizophrenia patients (schizophrenia group) and 408 healthy controls (healthy control group) in Chinese Han population. The levels of human anti-gliadin IgA and IgG antibodies of the subjects in various groups were detected by enzyme-linked immnosorbent assay (ELISA) method. The levels of human plasma anti-gliadin IgA and IgG antibodies in the subjects in schizophrenia group and healthy control group were analyzed by Pearson's correlation analysis and compared by Mann-Whitney U test; receiver operating characteristic (ROC) curve analysis was performed. Results; The level of plasma anti-gliadin IgA antibody showed a significantly positive correlation with the age and age ranges of the subjects (r= 0. 177, P0. 05). The ROC curve analysis results showed that the area under ROC curve (AUC) of anti-gliadin IgA and IgG antibodies were 0.573 (SE = 0. 022, 95% Cl: 0.53-0.62) and 0. 520 (SE=0. 022, 95%CI; 0. 48-0. 56). The sensitivities of anti-gliadin IgA and IgG antibodies were 13. 7% and 12. 8% when the specificity was 92. 2%. Conclusion; The increasing of plasma anti-gliadin antibodies level is associated with the occurrence of schizophrenia in the patients with different age ranges in Chinese Han population, and the human plasma anti-gliadin antibodies maybe play an important role in the young schizophrenia patients.

Differential analysis of gene expression profiles for lymphonode metastasis of colon cancer / 临床检验杂志

Objective To investigate the differences in the gene expression profiles between SW480 and SW620 cell lines.Methods A dataset of GDS756 containing the gene expression profiles of SW480 and SW620 was downloaded from the GEO database in NCBI.The differential expression genes between SW480 and SW620 were analyzed with gene set enrichment analysis (GSEA) and leading edge subset analysis.The genes in leading edge subset were re-annotated by FunRich software.The core genes of leading edge subset closely relating to SW480 or SW620 were analyzed with the STRING on-line analytical system.The functional core genes closely relating to SW480 or SW620 were obtained by the combined analysis of the core genes and high frequency genes from leading edge subset.Results GSEA identified 12 significantly enriched gene sets,491 leading edge genes and 7 highly overlapping genes from SW480 and 80 significantly enriched gene sets,870 leading edge genes and 6 highly overlapping genes from SW620.The STRING system identified 5 core genes from SW480 and 8 from SW620.The combined analysis of GSEA and bionetwork obtained 2 functional core genes,TOP2A and CDK1,from SW620.Conclusion The SW480 and SW620 cells with identical genetic background have different functional gene expression profiles,and the functional core genes TOP2A and CDK1 in SW620 cells may be related to the signal pathways of colon cancer metastasis.

Study on the Extraction Technology of Medicinal Materials in Yanyanling Dispersible Tablets / 中国药师

Objective: To optimize the extraction technology of Chinese medicinal materials in Yanyanling dispersible tablets.Methods: Orthogonal design was used to study the effects of three factors, including the ratio of liquid to materials, extraction time and extraction times on the extraction rate of Chinese medicinal materials and the comprehensive score of gallic acid content and total solid yield was used as the index.Results: The optimum extraction conditions were as follows: the ratio of materials to liquid was 1∶10 (g·ml-1), the extraction time was one hour, and the extraction times was three.Conclusion: Under the optimum conditions, the extraction rate of gallic acid in Chinese medicinal materials in Yanyanling dispersible tablets is 0.058%, and the total solid yield is 21.4%.The optimal process is stable and feasible, which can provide reference for the production of Yanyanling dispersible tablets.

Downscaling research of spatial distribution of incidence of hand foot and mouth disease based on area-to-area Poisson Kriging method / 中华流行病学杂志

Objective To understand the spatial distribution of incidence of hand foot and mouth disease (HFMD) at scale of township and provide evidence for the better prevention and control of HFMD and allocation of medical resources.Methods The incidence data of HFMD in 108 counties (district) in Shandong province in 2010 were collected.Downscaling interpolation was conducted by using area-to-area Poisson Kriging method.The interpolation results were visualized by using geographic information system (GIS).The county (district) incidence was interpolated into township incidence to get the distribution of spatial distribution of incidence of township.Results In the downscaling interpolation,the range of the fitting semi-variance equation was 20.38 km.Within the range,the incidence had correlation with each other.The fitting function of scatter diagram of estimated and actual incidence of HFMD at country level was y=1.053 1x,R2=0.99.The incidences at different scale were consistent.Conclusions The incidence of HFMD had spatial autocorrelation within 20.38 km.When HFMD occurs in one place,it is necessary to strengthen the surveillance and allocation of medical resource in the surrounding area within 20.38 km.Area to area Poisson Kriging method based downscaling research can be used in spatial visualization of HFMD incidence.

Downscaling research of spatial distribution of incidence of hand foot and mouth disease based on area-to-area Poisson Kriging method / 中华流行病学杂志

Objective To understand the spatial distribution of incidence of hand foot and mouth disease (HFMD) at scale of township and provide evidence for the better prevention and control of HFMD and allocation of medical resources.Methods The incidence data of HFMD in 108 counties (district) in Shandong province in 2010 were collected.Downscaling interpolation was conducted by using area-to-area Poisson Kriging method.The interpolation results were visualized by using geographic information system (GIS).The county (district) incidence was interpolated into township incidence to get the distribution of spatial distribution of incidence of township.Results In the downscaling interpolation,the range of the fitting semi-variance equation was 20.38 km.Within the range,the incidence had correlation with each other.The fitting function of scatter diagram of estimated and actual incidence of HFMD at country level was y=1.053 1x,R2=0.99.The incidences at different scale were consistent.Conclusions The incidence of HFMD had spatial autocorrelation within 20.38 km.When HFMD occurs in one place,it is necessary to strengthen the surveillance and allocation of medical resource in the surrounding area within 20.38 km.Area to area Poisson Kriging method based downscaling research can be used in spatial visualization of HFMD incidence.

Protein expression profile of mast cells in response to recombinant VP1-VP4 of foot-and-mouth disease virus / 生物工程学报

To reveal the innate immunity of mast cells against recombinant VP1-VP4 protein of foot-and-mouth disease virus (FMDV), mouse peritoneal mast cells (PMCs) were pulsed with recombinant VP1-VP4 protein. The supernatants harvested from PMCs cultures were applied to the high throughput ELISA array. Our results show that the expression levels of CCL19, L-selectin, CCL17, and TNF alpha released from PMCs pulsed with recombinant VP1-VP4 were significantly down-regulated compared with PMCs alone (P<0.001). Surprisingly, in comparison with PMCs alone, the expression levels of CCL19, IL-15, IL-9, G-CSF, and Galectin-1 in PMCs with the mannose receptor (MR) inhibitor were significantly up-regulated (Plt;0.01), and the expression level of IL-10 was also remarkably up-regulated (Plt;0.05). Importantly, the protein expression levels in PMCs treated with MR inhibitor were higher than PMCs pulsed with VP1-VP4, including IL-10, IL-17, CCL20, IL-15, IL-9, L-selectin, CCL17, TNF alpha, and CCL19 (Plt;0.01) as well as CCL21, and G-CSF (Plt;0.05). Differential expression analysis in bioinformatics shows that both L-selectin and CCL17 were recognized as differentially expressed protein molecules (Log2(ratio)≤-1) when compared with PMCs alone. Furthermore, the up-regulation of the expression levels of CCL20, CCL19, L-selectin, and IL-15 in PMCs treated with MR inhibitor was defined as differential expression (Log2(ratio)≥1). These data indicate that PMCs are capable of secreting CCL19, L-selectin, CCL17, and TNF alpha spontaneously and the recombinant VP1-VP4 has an inhibitive potential to PMCs during their performance of innate immune response. Given the protein expression levels from PMCs pre-treated with MR inhibitor were significantly increased, it can be deduced that immunosuppression of FMDV is presumably initiated by the VP1 recognition of MR on mast cells.

Metastasis-associated lung adenocarcinoma transcript 1 modulates oral squamous cell carcinoma invasion in vitro and in vivo / 中国肿瘤临床

Objective:To investigate the effect of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in modulat-ing the effects of oral squamous cell carcinoma (OSCC) invasion. Methods:Real-time polymerase chain reaction was employed to de-tect the expression of MALAT1 in samples of OSCC post-radical resection, normal oral mucosa samples, and oral squamous cell lines. MALAT1-siRNA was transfected into TSCCa human tongue squamous cell carcinoma cell lines. Cell proliferation was determined by methyl-thiazolyl-tetrazolium reduction assay. Cell migration and invasive ability were evaluated by scratch test and transwell assay. The expression of proteins that regulated invasion and apoptosis were examined using Western blot assay. Immunofluorescence assay was used to detect changes in epithelial-mesenchymal transition (EMT)-associated proteins in the cells. Tumor-bearing nude mouse models were established by subcutaneous implantation of TSCCa cells. Immunohistochemistry was used to detect up-regulation of proliferating cell nuclear antigen (PCNA) and matrix metalloproteinase-2/9 (MMP-2/9). Results:MALAT1 expression was significantly higher in OSCC than in normal tissues (P<0.05). MALAT1 expression was inhibited by transfecting MALAT1-siRNA. After MALAT1 expres-sion was down-regulated in TSCCa cells, proliferation was inhibited and invasion was attenuated, showing significant differences com-pared with the cells transfected with scrambled siRNA and control cells (P<0.05). Expression of N-cadherin and MMP-2/9 were down-regulated in the cells after MALAT1 was knocked down. Tumor growth was significantly slower in the MALAT1-siRNA group than in the control groups. IHC indicated that PCNA and MMP-2/9 expression of tumor tissues were significantly inhibited in MALAT1-siR-NA group. Conclusion:MALAT1 is over-expressed in human OSCC. MALAT1 reduction can inhibit the proliferation and invasion of OSCC cells. Furthermore, MALAT1 may promote OSCC invasion and metastasis by modulating EMT.

Analysis on association between anti-gliadin IgA and anti-gliadin IgG antibodies and schizophrenia in Chinese Han population / 吉林大学学报(医学版)

Objective To detect the levels of anti-gliadin IgA and anti-gliadin IgG antibodies in the plasma of the patients with schizophrenia, and to investigate the association between schizophrenia and anti-gliadin IgA, IgG bodies in a Chinese Han population, and to clarify the effect of gliadin on the occurrence of schizophrenia.Methods The plasma samples were collected from 428 patients with schizophrenia and 555 cases of normal control subjects in a Chinese Han population.The gliadin antibodies in plasma,including IgA and IgG,were tested using a native anti-gliadin ELISA test kit.The positive rates of plasma anti-gliadin IgA,and anti-gliadin IgG were tested by Chi-square test between the patients with schizophrenia and control subj ects. The differences of the levels of anti-gliadin IgA and anti-gliadin IgG were tested by Mann-Whitney U test between the patients with schizophrenia and control subjects.Results Compared with normal control group,the anti-gliadin IgA level and the positive rate of plasma anti-gliadin IgA in patient group were increased significantly(P0.05).The anti-gliadin IgA levels in the patients with delusion of observation,delusion of being revealed,delusion of persecution, delusion of j ealousy, delusion of grandeur, incoherence of thinking, illogic thought, bizarre behavior,aggressive behavior,hallucination-delusion syndrome,poverty of thought,emotional blunting/apathy and aboulia were higher than that of the normal controls (P<0.05);the anti-gliadin IgG levels in the patients with delusion of being revealed and delusion of grandeur were higher than that of the normal controls (P<0.05 ). Conclusion Gliadin is associated with the onset of schizophrenia in Chinese Han population, and the plasma antibodies of gliadin maybe play an important rale in the onset of schizophrenia.

Study on Brucella interfering the ubiquitin-dependent autophagic pathway in macrophage / 中华微生物学和免疫学杂志

Objective To investigate the effect on ubiquitin-dependent autophagic pathway in macrophage(MΦ) infected by B.suis S1330 attenuated strains.Methods Infected MΦ in vitro using Brucella S1330 strains to construct experimental model.Observed the process of phagocytic,the level of ubiquitination and autophagy in MΦ of mice.MΦ was divided into control group,infected group,positive control group and infected group after RAPA induced autophagy.The Giemsa staining immunofluorescence and Western blot were applied to observe the chances of ubiquitinated and autophagic protein in MΦ at different time points within different groups.Results Ubiquitinated bacterial protein was detected at 0.5 h after infected MΦ.With the time passing,the ubiquitinated bacterial protein increased and aggregated intracellular until MΦ dead at 12 h after infected.The expression of LC3B protein was serious deficiency in MΦ which infected group,but ubiquitinated bacterial protein decreased significantly in MΦ after RAPA induced.Conclusion Brucella S1330 stain can arouse intracellular ubiquitination process in infected MΦ,and interfere the ubiquitin-dependent autophagic pathway.A large number of aggregated and ubiquitinated bacterial protein can not be effectively removed,it leads to MΦ dysfunction and dead.

The Exploration of the Curriculum Design and Teaching of Medical Imaging Radiation Protection / 中华医学教育探索杂志

To meet the requirement of curriculum design about medical imaging field to undergraduate in medical college,the course of medical imaging radiation protection was developed by compiling a new textbook,establishing curriculum planning,implementing and evaluating teaching system.The teaching system of “one aim and two follows” was set up by use of three stages and three cycle feedbacks research and the course construction was promoted and developed by its teaching assessment,summary in time and the innovation of the teaching method.