Objective To evaluate the effect of penehyclidine hydrochloride (PHC) on the level of angiopoietin-1 (Ang-1) and tyrosine kinase receptor-2 (Tie-2) during endotoxin-induced acute lung injury (ALI) in rats.Methods Forty adult male Sprague-Dawley rats,weighing 180-220 g,were randomly divided into 4 groups using a random number table (n =10 each):control group (group C),ALI group,low-dose PHC group (group L-PHC) and high-dose PHC group (group H-PHC).ALI was induced with iv injection of lipopolysaccharide 5.0 mg/kg via the tail vein.In L-PHC and H-PHC groups,PHC 0.6 and 2 mg/kg were injected,respectively,via the tail vein at 1 and 24 h after lipopolysaccharide injection.The rats were sacrificed at 48 h after the initial injection of PHC to measure the lung water content,protein concentration in bronchoalveolar lavage fluid (BALF),and the expression of Ang-1,Tie-2 and phosphorylated Tie-2 in lung tissues.The morphological changes of lung tissues were observed under light microscope and the ultrastructural changes of alveolar epithelial barrier under transmission electron microscope.Results Compared with group C,the lung water content and protein concentrations in BALF were significantly increased,and the expression of Ang-1 and phosphorylated Tie-2 was down-regulated in the other three groups (P ＜ 0.05).Compared with group ALI,the lung water content and protein concentrations in BALF were significantly decreased,and the expression of Ang-1 and phosphorylated Tie-2 was up-regulated in H-PHC group (P ＜ 0.05),and no significant changes were found in the parameters mentioned above in group L-PHC (P ＞0.05).The damage to lung tissues was significantly reduced in group H-PHC as compared with group ALI.Conclusion PHC can improve the permeability of pulmonary microvascular and reduce injury to alveolar epithelial barrier,thus ameliorating endotoxin-induced ALI in rats,and the effect is dose-related and up-regulation of Ang-1 expression and inhancement of Tie-2 activity are involved in the mechanism.

Purpose: The purpose of this study was to use data mining methods to establish a simple and reliable predictive model based on the risk factors related to gallbladder stones (GS) to assist in their diagnosis and reduce medical costs. Materials and Methods: This was a retrospective cross-sectional study. A total of 4215 participants underwent annual health examinations between January 2019 and December 2019 at the Physical Examination Center of Shengjing Hospital Affiliated to China Medical University. After rigorous data screening, the records of 2105 medical examiners were included for the construction of J48, multilayer perceptron (MLP), Bayes Net, and Naïve Bayes algorithms. A ten-fold cross-validation method was used to verify the recognition model and determine the best classification algorithm for GS. Results: The performance of these models was evaluated using metrics of accuracy, precision, recall, F-measure, and area under the receiver operating characteristic curve. Comparison of the F-measure for each algorithm revealed that the F-measure values for MLP and J48 (0.867 and 0.858, respectively) were not statistically significantly different (p>0.05), although they were significantly higher than the F-measure values for Bayes Net and Naïve Bayes (0.824 and 0.831, respectively; p<0.05). Conclusion The results of this study showed that MLP and J48 algorithms are effective at screening individuals for the risk of GS.The key attributes of data mining can further promote the prevention of GS through targeted community intervention, improve the outcome of GS, and reduce the burden on the medical system.

Objective To investigate the potential of adult mesenchymal stem cells (MSCs) derived from human bone marrow to undergo cardiomyogenic differentiation after exposure to 5-azacytidine (5-aza) in vitro. Methods A small bone marrow aspirate was taken from the iliac crest of human volunteers, and hMSCs were isolated by 1.073g/mL Percoll and propagated in the right cell culturing medium as previously described. The phenotypes of hMSCs were characterized with the use of flow cytometry. The hMSCs were cultured in cell culture medium (as control) and medium mixed with 5-aza for cellular differentiation. We examined by immunohistochemistry at 21 days the inducement of desmin, cardiac-specific cardiac troponin I (cTnI), GATA 4 and connexin-43 respectively. Results The hMSCs are fibroblast-like morphology and express CD44+ CD29+ CD90+ / CD34- CD45- CD31- CD11a. After 5-aza treatment, 20-30% hMSCs connected with adjoining cells and coalesced into myotube structures after 14days. Twenty-one days after 5-aza treatment, immunofluorescence showed that some cells expressed desmin,GATA4, cTnI and connexin-43 in 5,10 μmol/L 5-aza groups, but no cardiac specific protein was found in neither 3μmol/L 5-aza group nor in the control group. The ratio of cTnI positively stained cells in 10 μmol/L group was higher than that in 5 μmol/L group (65.3 ± 4.7% vs 48.2 ± 5.4%, P ＜ 0.05). Electron microscopy revealed that myofilaments were formed. The induced cells expressed cardiac-myosin heavy chain (MyHC) gene by reverse transcription-polymerase chain reaction (RT-PCR). Conclusions Theses findings suggest that hMSCs from adult bone marrow can be differentiated into cardiac-like muscle cells with 5-aza inducement in vitro and the differentiation is in line with the 5-aza concentration. (J Geriatr Cardiol 2004;1(2) :101-107. )

Objective  To analyze the prevalence and risk factors of hyperuricemia (HUA) in Shenyang City, and to provide evidence for the prevention and treatment of HUA in this region. Methods From January 2013 to December 2020, 98,327 subjects who underwent physical examination in Shengjing Hospital of China Medical University in Shenyang were selected. The detection rate of HUA was calculated, and the risk factors of HUA were analyzed by multivariate logistic regression analysis. Results From 2013 to 2020, the overall prevalence of HUA was 22.48%, 30.75% in males and 9.13% in females. The prevalence rate in the male was significantly higher than that in the female (P<0.05). Except for a slight decrease in 2015 and 2020, the total prevalence rate showed an increasing trend year by year. With the increase of age, the prevalence of HUA in males decreased, while in females, it decreased slightly from 40 to 59 years old and increased significantly after 60 years old. With the increase of BMI (Body Mass Index), the prevalence of HUA also increased, and the difference was statistically significant (P<0.05). Logistic regression analysis showed that male, body mass index, physical examination year, hypertension, hyperlipidemia, hyperglycemia, triglyceride, LDL-C, abnormal liver and renal function were positively correlated with HUA, while age and HDL-C were negatively correlated with HUA. Conclusion  HUA occurs mainly in male people among physical examination population in Shenyang. With the increase of BMI, HUA increases.

Objective:To understand the status of overweight and obesity in healthy people in Shenyang area, and to explore the related factors of overweight and obesity and the influence of overweight and obesity on biochemical indicators such as blood lipid and blood glucose level.Methods:A total of 6 065 healthy subjects in our physical examination center of Shengjing Hospital Affiliated to China Medical University from January 2019 to October 2019 were collected and divided into normal group, overweight group and obesity group according to different BMI.The distribution characteristics of overweight and obesity in different gender, age were analyzed, as well as the influence of overweight and obesity on blood glucose, blood lipid and other indicators.Logistic regression was served to analyze the influence factors of overweight and obesity.Results:Among the 6 065 subjects, the prevalence of normal, overweight and obesity was 39.50%, 41.85% and 18.65%, respectively.The prevalence of overweight and obesity tended to rise with the increase of age(χ 2=118.958, P<0.001). The overweight and obesity rates of men(47.45%, 24.64%) were higher than those of women(33.08%, 9.26%), and the difference was statistically significant (χ 2=577.176, P=0.000). The levels of blood glucose, total cholesterol, triglyceride, low-density lipoprotein cholesterol, apolipoprotein B, creatinine, uricacid, cystatin C, glutamic-oxalacetic transaminase, glutamic-pyruvic transaminase, gamma-glutamyltransferase, alkaline phosphatase, prealbumin, systolic blood pressure and diastolic blood pressure in the overweight/obesity group were higher than those in the normal group, and the levels of high-density lipoprotein cholesterol and apolipoprotein A1 were lower than those in the normal group, the differences were statistically significant( t=13.904, 7.668, 0.057, 9.710, 19.723, 12.840, 27.840, 15.880, 8.368, 22.986, 18.382, 10.924, 17.283, 23.378, 8.033, 29.782 and 18.937, all P<0.001). Logistic regression analysis showed that the risk factors of overweight/obesity were age, gender, systolic blood pressure, triglyceride, blood glucose, apolipoprotein B, uricacid, cystatin C, glutamic-pyruvic transaminase, gamma-glutamyltransferase.High-density lipoprotein cholesterol, apolipoprotein A1, creatinine, glutamic-oxalacetic transaminase were the protective factors of overweight/obesity(Wald=37.863, 6.871, 40.632, 13.472, 16.800, 28.165, 94.152, 9.533, 126.332, 8.017, 16.427, 34.338, 13.948, 49.814, all P<0.01). Conclusion:The prevalence of overweight/obesity of the healthy people in Shenyang is high.We should take intervention measures as early as possible to improve the quality of life.

Objective To investigate the clinical significance of red blood cell distribution width-to-platelet ratio (RPR index) in evaluating the severity of metabolic-associated fatty liver disease and predicting fatty liver-associated cirrhosis. Methods A total of 192 patients with metabolic-associated fatty liver disease and 210 patients with fatty liver-associated cirrhosis who were admitted to Shengjing Hospital of China Medical University from January 2019 to June 2020 were enrolled as group A and group B, respectively, and 206 individuals who underwent physical examination in our hospital during the same period of time were enrolled as control group (group C). All subjects underwent general measurement, blood cell analysis, blood biochemical test, and abdominal CT examination, and related formulas were used to calculate RPR, aspartate aminotransferase-to-platelet ratio index (APRI), and fibrosis-4 (FIB-4) index. A one-way analysis of variance was used for comparison of continuous data with homogeneity of variance between groups, and the SNK method was used for comparison between two groups; the Kruskal-Wallis H test was used for comparison of continuous data with heterogeneity of variance between groups, and the Mann-Whitney U test was used for comparison between two groups; the chi-square test was used for comparison of categorical data between groups; the receiver operating characteristic (ROC) curve was used to analyze the accuracy of the prediction of liver cirrhosis. Results There were significant differences in red blood cell distribution width-standard deviation, albumin, creatinine, body mass index, RPR, and APRI between any two groups (all P < 0.001), and there were significant differences in white blood cell count, platelet count, alanine aminotransferase, aspartate aminotransferase, direct bilirubin, blood urea nitrogen, and FIB-4 between group A and group B (all P < 0.05). There were significant differences in waist circumference and fasting blood glucose between groups A and B and between groups A and C (all P < 0.001). There was a significant difference in RPR between any two groups of the mild, moderate, and severe metabolic-associated fatty liver disease groups (all P < 0.05). In terms of diagnostic efficiency, the three noninvasive models RPR, APRI, and FIB-4 had an area under the ROC curve of 0.932, 0.815, and 0.877, respectively, in predicting fatty liver-associated cirrhosis. Conclusion There is a difference in RPR index between different stages of liver disease, and RPR index gradually increases with the aggravation of metabolic-associated fatty liver disease. RPR index has a higher value than APRI and FIB-4 in the warning of fatty liver-associated cirrhosis.

Objective:To investigate the effect of probucol + aspirin + atorvastatin (PAS) therapy on the serum levels of homocysteine (Hcy) and retinol binding protein 4 (RBP4) in patients with diabetes mellitus complicated with cerebral infarction.Methods:126 cases of cerebral infarction patients complicated with diabetes mellitus in our hospital were recruited during January 2014 to May 2017, and then all of them were randomly divided into control group and observation group, 63 cases in each group. The control group was treated with atorvastatin combined with aspirin on the basis of routine treatment (AS therapy), and the observation group received the probucol on that basis of control group (PAS therapy). The clinical efficacy, neurological function, complications, changes of serum inflammatory factors, Hcy and RBP4 were evaluated in both groups before and after treatment.Results:After treatment, the National Institute of Health Stroke Scale (NIHSS) score of both groups were decreased and the NIHSS score of the observation group was lower than that in the control group ( P<0.05). After treatment, the effective rate of clinical treatment in observation group and control group were respectively 87.3%, 68.3%, the effective rate of observation group was significantly higher than control group ( P<0.05). After treatment, the serum levels of tumor necrosis factors-α (TNF-α), high-sensitivity C-reactive protein (hs-CRP), Hcy and RBP4 in both groups were decreased significantly ( P<0.05); the serum levels of TNF-α, hs-CRP, Hcy and RBP4 in observation group were significantly lower than those in control group ( P<0.05). There was no significant difference in the incidence of adverse reactions between the two groups ( P>0.05). Conclusions:PAS therapy is safe and effective in the treatment of type 2 diabetes mellitus complicated with cerebral infarction, which can effectively reduce serum levels of Hcy and RBP4, relieve inflammatory injury and improve neurological function.

80% activity rate against E.coli included piperacillin/tazobactam(93.4%)、ceftazidime(86%),and amikacin(83.3%);The susceptible rate to piperacillin/tazobactam in K.pneumoniae was 84.6%. The susceptible rate to ceftazidime decreased from 82.3% to 69.9%, which was lower than to cefepime (77.2%). Over 50% of Enterobacter cloacae were resistant to ceftazidime, cefotaxime and ceftriaxone. Susceptible rates to piperacillin/tazobactam in E. cloacae,E. aerogenes,Citrobacter freundii and Serratia marcescens (67.7%-96.4%) were higher than those to cefepime (68.8%-77.5%), cefoperazone/sulbactam (59.7%-87.5%). Susceptibility to amikacin among these 4 species (70%-83.7%) was higher than to ciprofloxacin (48.1%-79.5%). All of Morganella morganii and Proteus vulgaris isolates were susceptible to meropenem and imipenem; Over 90% of the isolates were susceptible to cefepime, cefoperazone/sulbactam and piperacillin/tazobactam.The most active agent against Pseudomonas aeruginosa was meropenem (84%), followed by amikacin, piperacillin/tazobactam, ceftazidime and imipenem (72.5%-76.6%). Mutiple-drug-resistant Acinetobacter baumannii increased from 33% in 2003 to 48% in 2004. Resistance to carbapenems increased to 18% in this species in 2004. The most active agents against Burkholderia cepacia were meropenme (64.9%), cefoperazon/sulbactam (63.2%), ceftazidime (59.6%), piperacillin/tazobactam (56.1%) and cefepime (52.6%).Conclusions Carbapenems remained very high activity against Enterobacteriaceae. Increasing resistance to 10 antimicrobials agents tested among A. baumanni brought great concern. Meropenem was 4-to 16-fold more active against common gram-negative bacilli than imipenem.

[This corrects the article DOI: 10.1016/j.apsb.2021.08.015.].

Osteosarcoma is a kind of bone tumor with highly proliferative and invasive properties, a high incidence of pulmonary metastasis and a poor prognosis. Chemotherapy is the mainstay of treatment for osteosarcoma. Currently, there are no molecular targeted drugs approved for osteosarcoma treatment, particularly effective drugs for osteosarcoma with pulmonary metastases. It has been reported that fibroblast activation protein alpha (FAPα) is upregulated in osteosarcoma and critically associated with osteosarcoma progression and metastasis, demonstrating that FAPα-targeted agents might be a promising therapeutic strategy for osteosarcoma. In the present study, we reported that the FAPα-activated vinblastine prodrug Z-GP-DAVLBH exhibited potent antitumor activities against FAPα-positive osteosarcoma cells in vitro and in vivo. Z-GP-DAVLBH inhibited the growth and induced the apoptosis of osteosarcoma cells. Importantly, it also decreased the migration and invasion capacities and reversed epithelial-mesenchymal transition (EMT) of osteosarcoma cells in vitro and suppressed pulmonary metastasis of osteosarcoma xenografts in vivo. Mechanistically, Z-GP-DAVLBH suppressed the AXL/AKT/GSK-3β/β-catenin pathway, leading to inhibition of the growth and metastatic spread of osteosarcoma cells. These findings demonstrate that Z-GP-DAVLBH is a promising agent for the treatment of FAPα-positive osteosarcoma, particularly osteosarcoma with pulmonary metastases.