Application of MRI-based radiomics model in predicting the tumor response in patients with advanced hepatocellular carcinoma after transcatheter arterial chemoembolization / 介入放射学杂志

Objective To develop a nomogram model based on the clinical features and the radiomics texture analysis of multimodal magnetic resonance imaging(MRI),so as to predict the tumor response in patients with advanced hepatocellular carcinoma(HCC)3 months after receiving transcatheter arterial chemoembolization(TACE).Methods A total of 105 patients with advanced HCC,whose diagnosis was pathologically-confirmed at the Suzhou Municipal Ninth People's Hospital between January 2017 and December 2021,were enrolled in this study.The patients were randomly divided into training group(n=63)and verification group(n=42).Before chemotherapy,T1WI,T2WI,dynamic contrast-enhanced(DCE)scan,and diffusion-weighted imaging(DWI)were performed by using a 3.0T MRI scanner.A.K.software was used to extract the texture.Three months after chemotherapy,according to the modified Response Evaluation Criteria in Solid Tumors(mRECIST)the patients were divided into response group(n=63)and non-response group(n=42).Results Compared with the response group,in the non-response group the percentage of Child-Pugh grade B and BCLC stage C was obviously higher and the serum alpha fetoprotein(AFP)level was remarkably elevated(P＜0.05).A.K.software extracted 396 MRI texture features,and LASSO regression analysis screened out 6 optimal predictors.The radiation score(Rad-score)was calculated by ROC.The AUC of Rad-score for predicting tumor non-response after TACE by ROC in the training group and verification group were 0.842 and 0.803 respectively.Multivariate logistic regression model analysis showed that AFP≥50 ng/mL(OR=1.568,95%CI=1.234-1.902,P=0.003),Child-Pugh grade B(OR=1.754,95%CI=1.326-2.021,P=0.001),BCLC stage C(OR=1.847,95%CI=1.412-2.232,P=0.001)and Rad-score(OR=2.023,95%CI=1.569-2.457,P＜0.001)were the independent risk factors for tumor non-response.Clinico-radiomics combination had the highest AUC value for predicting tumor non-response.The correction curve showed that the nomogram model had a good agreement.Conclusion The quantitative score of radiomics texture analysis of multimodal MRI has a certain value in predicting tumor non-response in advanced HCC patients 3 months after TACE,and the nomogram model,which is constructed if combined with clinical factors,carries good practical potential.(J Intervent Radiol,2024,32:63-68)

Construction of Dmd Gene Mutant Mice and Phenotype Verification in Muscle and Immune Systems / 实验动物与比较医学

Objective The aim is to utilize CRISPR/Cas9 gene editing technology to construct Dmd gene mutant mice with a point mutation in exon 23 of the Dmd gene. Subsequently, the phenotypic changes of the mice in muscles and immune systems are analyzed and verified, providing an evaluation model for Duchenne muscular dystrophy and other related diseases.MethodsBased on the sequence characteristics of exon 23 of the Dmd gene, small guide RNA (sgRNA) was designed and synthesized. Cas9 mRNA, sgRNA fragments, and oligo donor DNA were microinjected into fertilized eggs of C57BL/6J mice. After transferring the fertilized eggs to surrogate mice, F0 generation mice were born. After mating with F0 generation mice, offspring mice were obtained, and Dmd gene positive mutant (DmdMu/+) mice were obtained after genotype identification. Male hemizygous DmdMu/+(DmdMu/Y) mice were selected for phenotype validation. The body weight of live 3- and 9-month-old mice were recorded. Muscle tension was evaluated through the grid test. Hearts and semitendinosus muscles were collected, and the histopathological changes were observed using HE staining. Further, the expression of Dmd protein in muscle tissue of 9-month-old mice was analyzed by Western blotting.An acute inflammation model was established in DmdMu/Y mice using lipopolysaccharide induction. Peripheral blood from the submandibular vein was collected, and the changes in the proportion of neutrophils and monocytes were detected by flow cytometry.Results The results of genome sequencing and Western blotting confirmed the successful construction of Dmd gene point mutant mice (DmdMu/+ mice). Dmd protein expression was not detected in skeletal muscle and myocardium of DmdMu/+ mice, and it was significantly reduced compared to wild-type C57BL/6J mice (P<0.05). Compared with wild-type mice of the same background, DmdMu/Y mice at 3 and 9 months of age showed significant weight loss (P<0.01) and decreased muscle tension (P<0.05). 9-month-old DmdMu/Y mice exhibited significant pathological changes in skeletal muscle and myocardium, including widening of intermuscular space. Under normal condition, compared with wild-type mice, the proportion of neutrophils and monocytes in the peripheral blood of 3-month-old DmdMu/Y mice was significantly lower than that of wild-type mice (P<0.01). After lipopolysaccharide stimulation, the proportion of neutrophils in peripheral blood of 3-month-old DmdMu/Y mice remained significantly lower compared to that of wild-type mice (P<0.01). The proportion of neutrophils in peripheral blood of 9-month-old DmdMu/Y mice significantly decreased after lipopolysaccharide induction (P<0.01), with a trend of change observed in monocytes between groups.Conclusion The successful construction of the Dmd gene mutant mouse model has confirmed the vital function of Dmd gene in maintaining normal muscle tissue morphology and muscle tone. It preliminarily indicated that Dmd gene deletion could significantly reduce the proportion of neutrophils in peripheral blood, offering a new perspective for the study of immune system alterations in Duchenne muscular dystrophy patients.

Improvement effect of arbutin on myocardial fibrosis model rats and its mechanism / 中国药房

OBJECTIVE To study the improvement effects of arbutin on myocardial fibrosis （MF） model rats and its mechanism. METHODS The network pharmacology was used to predict the potential target of arbutin in improving MF and molecular docking was used to validated. Totally 50 SD rats were given isoprenaline subcutaneously （5 mg/kg， once a day， for 14 consecutive days） to induce the MF model. Modeled rats were randomly divided into model group， captopril group （9 mg/kg）， arbutin low-dose， medium-dose and high-dose groups （50， 100， 200 mg/kg）， with 10 rats in each group. Another 10 healthy rats were included as normal group. Each group was given the corresponding drugs， once a day， for 28 consecutive days. Twenty-four hours after the final administration， electrocardiograms and heart-related indexes [heart weight index （HWI）， left ventricular weight index （LVWI）] of rats were detected； the levels of creatine kinase （CK）， lactate dehydrogenase （LDH）， N-terminal pro-brain natriuretic peptide （NT-proBNP） and type Ⅰ collagen （Col Ⅰ） and Col Ⅲ were detected in myocardial tissue of rats； the pathological changes of myocardial tissue were observed， and protein and mRNA expressions of adenosine deaminase （ADA） and adenosine kinase （ADK） were detected in the myocardial tissue of rats. RESULTS The results of network pharmacology showed that the main targets of arbutin improving MF were ADA and ADK. The results of molecular docking showed that arbutin bind stably with ADA and ADK. The results of experimental verification showed that compared with model group， the amplitude of ST and T waves in electrocardiogram were improved in administration groups， and the symptoms of atrial flutter were alleviated； HWI （except for arbutin medium-dose group）， LVWI， the levels of CK， LDH， NT-proBNP， Col Ⅰ and Col Ⅲ in the myocardial tissue of rats were decreased significantly （P＜0.05）； the degree of myocardial fibrosis in rats decreased； protein and mRNA expressions of ADA and ADK in the myocardial tissue were significantly increased （P＜0.05）. CONCLUSIONS Arbutin can improve cardiac fibrosis and cardiac function of MF model rats， the mechanism of which may be associated with up-regulating protein and mRNA expressions of ADA and ADK，influencing the nucleotide metabolism and collagen generation. zhangminghao@hactcm.edu.cn

Effects of miR-9-5p on the migration, invasion and epithelial-mesenchymal transition process in cervical squamous cell carcinoma / 中南大学学报(医学版)

OBJECTIVES@#Cervical squamous cell carcinoma is the most common cancer in female reproductive system. This study aims to explore the effect of microRNA-9-5p (miR-9-5p) on the migration, invasion, and epithelial-mesenchymal transition (EMT) process of cervical squamous cells.@*METHODS@#Bioinformatics were used to predict the miRNAs that could bind to E-cadherin (E-cad). The Cancer Genome Atlas (TCGA) database was used to analyze and extract significantly differentially expressed miRNAs from part of cervical squamous cell carcinoma tissues and normal cervical tissues, and miR-9-5p was selected as the main research target. The translated regions (UTR) of wild-type E-cad (E-cad-WT 3'-UTR) or the 3'-UTR of mutant E-cad (E-Cad-MUT 3'-UTR) was transfected with miR-9-5p mimic normal control (NC), and miR-9-5p mimic was co-transfected human embryonic kidney cells (293T). The relationship between miR-9-5p and E-cad was detected by double luciferase assay. The expression of miR-9-5p in normal cervical epithelial cell lines (H8) and cervical squamous cell lines (C33A, siha, caski and Me180) were detected by quantitative real-time PCR. Then, the experiments were divided into groups as follows: a block control group, an overexpression control group (mimic-NC group), a miR-95p overexpression group (mimic group), an inhibitory expression control group (inhibitor-NC group), and a miR-9-5p inhibitory expression group (inhibitor group). The changes of migration ability were detected by scratch assay. Transwell invasion assay was used to analyze the changes of invasion ability, and the mRNA and protein changes of E-cad and vimentin were detected by quantitative real-time PCR and Western blotting.@*RESULTS@#MiR-9-5p had a targeting binding relationship with E-cad. Compared with the normal cervical tissue H8 cell line, the miR-9-5p was highly expressed in cervical cancer cell lines (C33A, siha, caski and Me180) (all P<0.05). The luciferase activity of E-cad-MUT was increased compared with that of E-cad-WT in miR-9-5p mimic cells (P<0.05). Compared with the blank control group, the protein and mRNA expressions of E-cad were decreased in the miR-9-5p mimic group (both P<0.05), which were increased in the miR-9-5p inhibitor group (both P<0.05). Compared with H8 cell line, the miR-9-5p was highly expressed in the cervical squamous cell lines (all P<0.05). Compared with the mimic-NC group, the distance of wound healing, the number of caski and Me180 cells invaded below the membrane, and the mRNA and protein expressions of vimentin were all increased in the miR-9-5p mimic group (all P<0.05), while the mRNA and protein of E-cad were decreased (both P<0.05). Compared with the inhibitor-NC group, the distance of wound healing, the number of caski and Me180 cells invading the membrane, and the mRNA and protein expressions of vimentin were decreased in the miR-9-5p inhibitor group (all P<0.05), but the mRNA and protein expressions of E-cad were increased (both P<0.05).@*CONCLUSIONS@#The miR-9-5p is highly expressed in cervical squamous cell carcinoma, which can increase the migration and invasion ability, and promote the EMT process of cancer cells.

MSCs-derived apoptotic extracellular vesicles promote muscle regeneration by inducing Pannexin 1 channel-dependent creatine release by myoblasts / 国际口腔科学杂志·英文版

Severe muscle injury is hard to heal and always results in a poor prognosis. Recent studies found that extracellular vesicle-based therapy has promising prospects for regeneration medicine, however, whether extracellular vesicles have therapeutic effects on severe muscle injury is still unknown. Herein, we extracted apoptotic extracellular vesicles derived from mesenchymal stem cells (MSCs-ApoEVs) to treat cardiotoxin induced tibialis anterior (TA) injury and found that MSCs-ApoEVs promoted muscles regeneration and increased the proportion of multinucleated cells. Besides that, we also found that apoptosis was synchronized during myoblasts fusion and MSCs-ApoEVs promoted the apoptosis ratio as well as the fusion index of myoblasts. Furthermore, we revealed that MSCs-ApoEVs increased the relative level of creatine during myoblasts fusion, which was released via activated Pannexin 1 channel. Moreover, we also found that activated Pannexin 1 channel was highly expressed on the membrane of myoblasts-derived ApoEVs (Myo-ApoEVs) instead of apoptotic myoblasts, and creatine was the pivotal metabolite involved in myoblasts fusion. Collectively, our findings firstly revealed that MSCs-ApoEVs can promote muscle regeneration and elucidated that the new function of ApoEVs as passing inter-cell messages through releasing metabolites from activated Pannexin 1 channel, which will provide new evidence for extracellular vesicles-based therapy as well as improving the understanding of new functions of extracellular vesicles.

Meta-analysis of effects of laparoscopic sleeve gastrectomy on vitamins and trace elements in obese patients / 中华临床营养杂志

Objective:To evaluate the changes in vitamins and trace elements in obese patients after laparoscopic sleeve gastrectomy (LSG).Methods:A systematic retrieval of the available literature was performed using Pubmed, Embase, Cochrane library, Web of Science, WanFang data and CNKI databases and studies were selected per predefined eligibility criteria. Statistical analysis was performed using Stata 13.0.Results:A total of 22 studies with 5320 individuals with obesity who underwent LSG were identified as eligible for inclusion. A significant increase was observed in serum 25(OH)D ( SMD = 0.59, 95% CI: 0.16 to 1.03, P = 0.007), phosphorus ( SMD = 0.28, 95% CI: 0.09 to 0.47, P = 0.004) and iron ( SMD = 0.46, 95% CI: 0.31 to 0.61, P < 0.01) after LSG. A significant decrease in serum zinc ( SMD = -0.41, 95% CI: -0.81 to -0.01, P = 0.044) was observed after LSG. But no significant changes in serum calcium ( SMD = 0.11, 95% CI: -0.14 to 0.36, P = 0.385), folate ( SMD = 0.27, 95% CI: -0.08 to 0.62, P = 0.133), vitamin B 12 ( SMD = 0.11, 95% CI: -0.25 to 0.47, P = 0.563) and magnesium ( SMD = 0.53, 95% CI: -0.08 to 1.14, P = 0.09) were observed. Conclusions:The changes of serum nutritional measurements in individuals with obesity who underwent LSG are uncertain. Therefore, it is recommended to monitor the nutritional laboratory values and add supplements when necessary to prevent postoperative malnutrition.

The predicting effect of disrupted functional connectivity of anterior cingulate cortex on the efficacy of nonsteroidal anti-inflammatory drugs in migraineurs without aura / 中华行为医学与脑科学杂志

Objective:To investigate the predicting effect of the disrupted functional connectivity of the anterior cingulate cortex (ACC) on the efficacy of non-steroidal anti-inflammatory drugs (NSAIDs) in patients with migraineurs without aura (MwoA).Methods:From January 2019 to January 2021, seventy patients with migraine and thirty-three healthy people in the same period were selected.The functional connectivity analysis based on the ACC was used in MwoA patients with NSAIDS-effective ( n=35), MwoA patients with NSAIDS-ineffective ( n=35), and healthy controls (HCs) ( n=33). The abnormal resting-state functional connectivity patterns among the three groups were analyzed to reveal potential correlations with clinical characteristics in migraine. Then the receiver operating characteristic (ROC) curve was used to analyze the predictive ability of the abnormal ACC functional connectivity on the efficacy of NSAIDs in patients with MwoA. Results:(1)Compared with the MwoA patients with NSAIDs-ineffective, the MwoA patients with NSAIDs-effective showed higher functional connectivity between bilateral ACC and left middle cingulate cortex (MCC) (MNI: x, y, z=0, -24, 48, cluster=14, t=3.380) and postcentral gyrus (PoCG)( MNI: x, y, z=-21, -45, 69, cluster=12, t=3.016) (all P<0.005, Bonferroni correction). Compared with the HCs, patients with MwoA showed increased functional connectivity between left ACC and ipsilateral inferior parietal lobule, middle frontal gyrus (MFG) and angular gyrus (AG), and between right ACC and right precuneus, bilateral MFG and left AG (all P<0.005, Bonferroni correction). (2)There was a positive correlation between the functional connectivity of right ACC to right precuneus and MIDAS scores ( r=0.375, P=0.035) in MwoA patients with NSAIDs-effective. In MwoA patients with NSAIDs-ineffective, there were also significant correlations between the functional connectivity of left ACC to ipsilateral AG and MFG and headache onset duration ( r=0.357, P=0.045) and disease duration ( r=-0.367, P=0.039). (3)ROC curve analysis showed that the area under the curve (AUC) for the functional connectivity between the right ACC and left MCC and between the left ACC and left PoCG to predict the efficacy of NSAIDs were 0.728 and 0.736, respectively. Conclusions:Resting-state functional connectivity of the ACC is involved in the evaluation and prediction for analgesic efficacy of NSAIDs in migraine patients, which provides neuroimaging evidence for further investigations on the neurophysiological mechanism of migraine and assistance in clinical individualized precise treatment.

Effect of physicochemical properties on

Current advances of immunotherapy have greatly changed the way of cancer treatment. At the same time, a great number of nanoparticle-based cancer immunotherapies (NBCIs) have also been explored to elicit potent immune responses against tumors. However, few NBCIs are nearly in the clinical trial which is mainly ascribed to a lack understanding of

Analysis of nurses′ innovative behavior from the perspective of empowerment theory / 中国实用护理杂志

Based on the concept of empowerment theory and innovation behavior, this paper summarizes the status quo of the impact of empowerment theory on nurses′ innovative behavior, analyzes the essence and influencing factors of innovation behavior of nurses according to the elements of empowerment theory, analyze the empowerment theory and nurses′ individual innovation behavior scale, and puts forward the feedback mechanism of empowerment theory. In order to further improve the innovative behavior of nurses by applying the empowerment theory management mode, it is helpful for nursing managers to train nursing talents by using empowerment theory.

Establishment of a CT image radiomics-based prediction model for the differential diagnosis of silicosis and tuberculosis nodules / 中华劳动卫生职业病杂志

Objective@#To establish a CT image radiomics-based prediction model for the differential diagnosis of silicosis and tuberculosis nodules.@*Methods@#A total of 53 patients with silicosis and 89 patients with tuberculosis who underwent routine CT scans in Suzhou Fifth People's Hospital from January to August, 2018 were enrolled in this study. AK/ITK software was used to segment the images to obtain 139 silicosis lesions and 119 tuberculosis lesions. For each lesion image, 396 features were extracted, and feature dimension reduction was applied to select the most characteristic feature subset. Support vector machine (SVM) , feedforward back propagation neural network (FNN-BP) , and random forest (RF) were implemented using R software (Rstudio V1.1.463) , and the algorithm that achieved the largest area under of the receiver operating characteristic (ROC) curve (AUC) was selected as the final prediction model.@*Results@#RF was the best prediction model for the differential diagnosis of silicosis and tuberculosis nodules, with an accuracy of 83.1%, a sensitivity of 0.76, a specificity of 0.9, and an AUC of 0.917 (95% confidence interval: 0.8431-0.9758) . RF had a significantly larger AUC than SVM and FNN-BP (P<0.05) .@*Conclusion@#CT image-based RF prediction model can be used to differentially diagnose silicosis and tuberculosis nodules.

The research advances of correlation between statin use and spontaneous intracerebral hemorrhage / 中华神经科杂志

Statins, 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, are established first line treatments for hypercholesterolemia because of their proved efficacy. However, the results of several studies have raised concerns that statin use increases the risk of spontaneous intracerebral hemorrhage(ICH). At the same time, other researches make the adverse conclusion that statin use does not increase the risk of ICH, but improves clinical outcome and decreases the mortality after ICH. Additional randomized controlled trials are required to clarify the correlation between statin use and ICH, and whether to continue statin use after ICH. This paper reviews research advances of correlation between statin use and ICH.

The research advances of correlation between statin use and spontaneous intracerebral hemorrhage / 中华神经科杂志

Statins, 3?hydroxy?3?methylglutaryl coenzyme A reductase inhibitors, are established first line treatments for hypercholesterolemia because of their proved efficacy. However, the results of several studies have raised concerns that statin use increases the risk of spontaneous intracerebral hemorrhage(ICH). At the same time, other researches make the adverse conclusion that statin use does not increase the risk of ICH, but improves clinical outcome and decreases the mortality after ICH. Additional randomized controlled trials are required to clarify the correlation between statin use and ICH, and whether to continue statin use after ICH. This paper reviews research advances of correlation between statin use and ICH.

Detection and clinical value of serum myocardial enzyme and immune function in children with bronchial asthma / 国际检验医学杂志

Objective To investigate the changes of serum myocardial enzyme and immune function in chil-dren with bronchial asthma,and to evaluate the clinical value of level detection.Methods 100 children with bronchial asthma were divided into acute attack group and remission group,50 cases in each group,50 healthy children were selected as control group;the level of serum myocardial enzyme(AST,LDH,CK,CK-MB)and Tlymphocyte subsets(CD3+,CD4+,CD8+,CD4+/CD8+)were compared between the 3 groups,and to ana-lyze the correlation between levels and disease.Results The levels of AST,LDH,CK,CK-MB,CD4+and CD4+/CD8+in the children with asthma exacerbation and remission were significantly higher than those in the control group,and levels of acute attack group was significantly higher than the remission group,the difference was statistically significant(P<0.05).The level of CD8+in the acute attack group and remission group was significantly lower than that in the control group,and the level of the acute attack group was signif-icantly lower than that of the control group,the difference was statistically significant(P<0.05).Severity of bronchial asthma was significant positive correlation with AST,LDH,CK,CK-MB,CD4+and CD4+/CD8+(P<0.05),the severity of bronchial asthma was negatively correlated with the level of CD 8+(P<0.05).Conclu-sion There were different degrees of myocardial damage and abnormal immune function in children with bronchial asthma.With the aggravation of the disease,the level of myocardial enzyme and immune function of children with asthma were more significantly abnormal.

The influence of hypochromic anemia on HbA1cin the pregnant women / 中华检验医学杂志

Objective To explore the effects of the low pigmented anemia on glycated hemoglobin of pregnant women with normal glucose metabolism.Methods The study retrospectively selected the 10-28 weeks pregnant women of 647 cases(292 cases with Hb≥110 g/L and 355 cases with Hb<110 g/L)with normal fasting blood glucose at the Qingpu Branch of Zhongshan Hospital, Fudan University, between January and June 2017.According to their MCH and MCV,patients were divided into two groups.There are observation group which including 89 cases with MCH<27 pg and MCV<82 fl and 196 cases with MCH<27 pg and MCV≥82 fl as(low pigment group)and 362 cases with MCH≥27 pg and MCV≥82 fl as control group which including 70 cases with Hb≥110 g/L and 292 cases with Hb <110 g/L.RBC parameters, fasting plasma glucose and glycosylated hemoglobin of all cases were detected on the Hitachi 7600 automatic biochemical analyzer and HLC-723G8 automatic glycosylated hemoglobin analyzer.The t test, chi-square test and Bonferroni test were used for statistical analysis.Results Statistical analysis showed the fasting blood glucose of the pregnant women without anemia(Hb≥110 g/L)and the pregnant women with anemia (Hb<110 g/L)were(4.68 ±0.36)mmol/L and(4.632 ±0.33)mmol/L respectively, and there is no statistical difference between them with t=-1.860,P=0.063.The and glycosylated hemoglobin levels of the pregnant women with Hb≥110 g/L and the pregnant women with Hb <110 g/L were(4.851 ±0.32)%and(4.872 ±0.35)%respectively,and there is no statistical difference between them with t=0.780,P=0.436.The fasting blood glucose of the cases with MCH <27 pg and MCV<82 fl,the cases with MCH<27 pg and MCV≥82 fl and the cases with MCH≥27 pg and MCV≥82 fl were(4.609 ±0.319)mmol/L, (4.586 ±0.381)mmol/L,(4.661 ±0.344)mmol/L respectively, and there was no statistical difference among them with F=1.105,P=0.332;the glycated hemoglobin levels of the three groups were(5.097 ± 0.409)%,(5.084 ±0.375)% and(4.835 ±0.321)% respectively, the glycated hemoglobin of the cases with MCH<27 pg were statistically higher than that of the cases with MCH≥27 pg with F=18.479,P<0.000 1 and absolute difference was 0.26%.Conclusion Low pigment anemia with MCH <27 pg has a significant effect on glycated hemoglobin levels in pregnant women,which can cause the increase of glycated hemoglobin in pregnant women.

Association between the time of sedentary behaviors and risk of type 2 diabetes / 中华预防医学杂志

Objective@#To explore the relationship between the time of sedentary behaviors and the risk of type 2 diabetes mellitus (T2DM) among rural adults in Henan Province.@*Methods@#A total of 1 227 adults from Houzhai village in Zhengzhou City and Qiaomiao village in Jiaozuo City in Henan Province were randomly selected to participate in the survey; each of them finished a questionnaire and accepted physical examination and test of biochemical indicators. The participants were divided into case and control groups according to whether suffering from T2DM. A Pearson linear correlation and linear regression model analysis were used to investigate the relevance between the time of sedentary behaviors and fasting plasma glucose (FPG); meanwhile, a multi factor logistic regression model was used to analyze the relationship between the time of sedentary behaviors and T2DM.@*Results@#The average FPG level among the participants was (5.4±2.5) mmol/L, and the average time of sedentary behaviors was (234.5±156.5) min per day. The prevalence rate of T2DM in subgroups whose time of sedentary behaviors were separately 0-<2.5, 2.5-<4.5, 4.5-<6.5 and ≥6.5 h/day were 15.8% (72/457), 19.3% (73/379), 16.7% (35/210) and 20.4% (37/181), respectively. There was a linear regression relationship between the time of sedentary behaviors(x) and FPG(y), the regression equation was: y=5.081+0.001x (t=3.01, P=0.003). Logistic regression model analysis showed that participants whose time of sedentary behaviors ≥6.5 h/day had significantly higher risk of T2DM than those whose time of sedentary behaviors between 0-2.4 h/day (OR=1.77, 95%CI: 1.11-2.81) after age and gender adjusted. However, the associations only exist in males and adults ≥50 years old according to sex and age stratification. It showed that participants with sedentary time ≥6.5 h/day had significantly higher risk of T2DM than those with sedentary time between 0-<2.5 h/d, with the corresponding OR (95%CI) at 2.34 (1.21-4.52) and 2.22 (1.19-4.16), respectively.@*Conclusion@#The prolonged sedentary time is a risk factor of type 2 diabetes. After stratification by gender and age, the correlation only found in males and adults aged ≥50 years old.

Construction and Practice of Humanistic Care Model in Emergency Departments / 中国医学伦理学

Objective:To explore the humanistic care model and its effects in emergency nursing.Methods:Through literature research,analysis process and interviews,we constructed the humanistic care model,formulated corresponding humanistic care nursing measures,and implemented them in clinical practice.The humanistic care satisfaction questionnaire was used to evaluate the effectiveness.Results:The satisfaction rate of humanistic care was improved,and the difference was statistically significant (P ＜ 0.001).Conclusion:The construction of humanistic care model can significantly improve the satisfaction of emergency patients,and the standardized process should be established in the implementation of humanistic care.

Effect of common carp (Cyprinus carpio) TLR9 overexpression on the expression of downstream interferon-associated immune factor mRNAs in epithelioma papulosum cyprini cells.

Toll-like receptors (TLRs) are a class of pattern recognition receptors (PRRs) that recognize pathogen associated molecular patterns (PAMPs) and play an important role in the antiviral response. To determine the effect of common carp TLR9 (CcTLR9) overexpression on the expression of down-stream interferon associated immune factors in epithelioma papulosum cyprini (EPC) cells, may provide useful information for the further investigation on the anti-virus effect mediated by TLR9 in fish. In this study, we constructed an overexpression vector, pEGFP-N1-CcTLR9, by cloning the CcTLR9 gene and inserting it into an expression vector pEGFP-N1. Both plasmids DNA of pEGFP-N1 and pEGFP-N1-CcTLR9 were transfected into EPC cells, and the expression of IRF3, IRF7, ISG15, Mx1, PKR and Viperin mRNA at 0, 6, 12, 24, 48 and 72h post-transfection were determined by real-time quantitative PCR (Q-PCR). Overexpression of the CcTLR9 gene in EPC cells upregulates the expression of IRF3, IRF7, ISG15, Mx1, PKR, and Viperin mRNA, and this was more significant for Viperin, ISG15, and IRF7, and least significant for PKR. Thus, fish TLR9 activates IRF7 signaling to induce I-IFN secretion and the subsequent upregulation of IFN-stimulated genes.

Specific technique system management in rescue of batches of patients with severe blast injury / 医学研究生学报

Objective It is a tough job to rescue batches of patients with severe blast injury .The article aimed to construct specific technique system management in the rescue of batches of patients with severe blast injury and evaluate its effects . Methods Retrospective analysis was made on 9 patients with severe blast injury who hospitalized simultaneously .According to the difficulties in the nursing process of treating severe blast injury such as management of respiratory tract , continuous renal replacement therapy , vascular access, nutritional supply, skin nursing, etc, specific technique system management was constructed to evaluate technical support key points at different phases , including personalized nursing scheme with disease progression , professional nursing instruction on key points of different phases from specialists as well as corresponding nursing decision and professional caring . Results Specific technique system management was applied in these 9 patients with severe blast injury .Only 1 patients developed ventilator related pneumonia when receiving mechanical ventilation and no procedure related complications occurred in the aspects of blood purification , skin management , vascular access and nutrition support .6 patients discharged from hospital after recovery . Conclusion Specific techniques and systemic management in batch treatment of severe bast injury patients could help collaborative nursing , improve the management of specific management and prevent complication .

The effects of DPPI on LPS-induced periodontitis in mice / 实用口腔医学杂志

Objective:To study the effect of dipeptidyl peptidase I(DPPI)on the damage of alveolar bone and inflammatory re-sponse of periodontium in periodontitis mice.Methods:Periodontitis model of left first molars was established in 1 0 DPPI-/-mice and 1 0 wild type(WT)mice by E.coli LPS injection and the right ones were served as the control by PBS injection.Micro-CT scanning and HE staining were performed to compare the damage of alveolar bone and inflammatory response of periodontium between the 2 groups.Results:The decreace of alveolar bone height in DPPI-/-mice was less than that in WT mice〔(Maxillary:(0.001 7 ± 0.000 4)mm vs (0.202 0 ±0.008 6)mm;Mandibular:(0.034 2 ±0.002 9)mm vs (0.332 8 ±0.01 2 5)mm〕(P<0.05).HE staining showed that the inflammatory response of periodontium in DPPI-/-mice was less severe than that in WT mice.Conclusion:DPPI may promote the inflammatory response of periodontis in mice.

Distribution and change in antimicrobial resistance of pathogens from sputum of hospitalized children in a pediatric department in 3 consecutive years / 中国感染控制杂志

Objective To realize the distribution and change in antimicrobial resistance of common pathogens causing acute lower respiratory tract infection (LRTI)in children,and provide evidence for rational use of antimicrobial agents. Methods Data about pathogens from children with LRTI in a hospital between January 2011 and December 2013 were ana-lyzed statistically.Results Of 934 isoalted pathogenic strains,728 (77.94%)were gram-negative bacteria,the major were Klebsiella pneumoniae (n =278),Escherichia coli (n =216),Enterobacter cloacae (n =85 ),and Pseudomonas aeruginosa (n=63).The isolation rate of gram-positive bacteria was 20.87%(n=195),the major were Staphylococcus aureus (n=132)and Streptococcus pneumoniae (n=49).Antimicrobial susceptibility testing results revealed that sensitive rate of gram-negative bacteria to imipenem,meropenem,and amikacin were all 100.00%,to ceftazidime/clavulanic acid and piperacillin/tazobactam were relatively low,to cephalosporins increased year by year.Sensitive rates of the main gram-positive bacteria to vancomycin were both 100.00%, to erythromycin and clindamycin were relatively low. Conclusion The major pathogenic bacteria causing LRTI in pediatric department are gram-negative bacteria,antimicrobial resistance rates increased year by year,management of antimicrobial use in children should be strengthened to prevent the occurrence of multidrug-resistant organism infection.