Objective To preliminary explore the in vitro anti-inflammatory effects of Qinggan Tongyin based on serum pharmacology and network pharmacology.Methods The effects of the serum containing Qinggan Tongyin on the release of NO,cell necrosis factor-α(TNF-α),and interleukin-6(IL-6)in LPS-induced RAW264.7 cells were confirmed using serum pharmacology.UHPLC-MS/MS was used to determine the index components of Qinggan Tongyin.The possible targets and pathways of active components in Qinggan Tongyin for anti-inflammatory properties were predicted by using network pharmacology.Results The results of cellular assay showed that Qinggan Tongyin could dramatically lessen the levels of NO,TNF-α,and IL-6(P＜0.05,P＜0.01,P＜0.001).The higher contents of Qinggan Tongyin were phillyrin A,arctiin,chlorogenic acid,scutellarin,gallic acid,rosmarinic acid,paeoniflorin and phillyrin.A totsl of 215 intersection targets between 17 active components in Qinggan Tongyin and inflammation were obtained,and the 31 core targets were ALB,VEGFA,IL-6,TNF-α,etc..The primary targets can exhibit anti-inflammatory actions by regulating several signaling pathways,such as AGE-RAGE,PI3K-Akt,and MAPK signaling pathway.Conclusion Qinggan Tongyin exerts its anti-inflammatory effects with the characteristic of multiple components and multiple targets.

Objective To investigate the toxicity and mechanism of a novel Staphylococcus aureus with incomplete hemolytic phenotype(SIHP)filtrate on non-small cell lung cancer(NSCLC)HCC827 cell line.Methods The filtrates and diluents of novel SIHP and Staphylococcus aureus with complete hemolytic phenotype(SCHP)were co-incubated with 1％ human red blood cells and HCC827 cells.Hemoglobin release method was used to detect red blood cell toxicity,CCK-8 method was used to detect HCC827 cell activity.Ion selective electrode method,colori-metric method and immunofluorescence method were used to detect potassium(K+),lactate dehydrogenase(LDH)and interleukin-6(IL-6)concentrations in the incubation supernatants.Results The filtrate and diluent of novel SIHP could significantly damage the activity of HCC827 cells,causing K+and LDH leakage.The filtrate and 1:3 diluent of novel SIHP resulted in a decrease and an increase in IL-6 secretion in HCC827 cells,respec-tively.Compared with SCHP,the filtrate and diluent of novel SIHP had stronger red blood cell toxicity and more severe K+leakage in HCC827 cells.Conclusion The filtrate of novel SIHP can damage the cell membrane,lead to content release and kill NSCLC cells,with a stronger toxicity than SCHP.

Background::Breast cancer (BC) risk-stratification tools for Asian women that are highly accurate and can provide improved interpretation ability are lacking. We aimed to develop risk-stratification models to predict long- and short-term BC risk among Chinese women and to simultaneously rank potential non-experimental risk factors.Methods::The Breast Cancer Cohort Study in Chinese Women, a large ongoing prospective dynamic cohort study, includes 122,058 women aged 25-70 years old from the eastern part of China. We developed multiple machine-learning risk prediction models using parametric models (penalized logistic regression, bootstrap, and ensemble learning), which were the short-term ensemble penalized logistic regression (EPLR) risk prediction model and the ensemble penalized long-term (EPLT) risk prediction model to estimate BC risk. The models were assessed based on calibration and discrimination, and following this assessment, they were externally validated in new study participants from 2017 to 2020.Results::The AUC values of the short-term EPLR risk prediction model were 0.800 for the internal validation and 0.751 for the external validation set. For the long-term EPLT risk prediction model, the area under the receiver operating characteristic curve was 0.692 and 0.760 in internal and external validations, respectively. The net reclassification improvement index of the EPLT relative to the Gail and the Han Chinese Breast Cancer Prediction Model (HCBCP) models for external validation was 0.193 and 0.233, respectively, indicating that the EPLT model has higher classification accuracy.Conclusions::We developed the EPLR and EPLT models to screen populations with a high risk of developing BC. These can serve as useful tools to aid in risk-stratified screening and BC prevention.

Objective To investigate the application value of extracellular volume fraction(ECV)obtained from enhanced CT in diagnosis and classification of acute pancreatitis.Methods The clinical data from patients with acute pancreatitis(acute pancreatitis group)and normal controls(control group)underwent enhanced CT were analyzed retrospectively.The CT values of pancreas and abdominal aorta in the same sclice on precontrast and equilibrium-phase images were measured,and then pancreatic ECV was calcu-lated.The measured parameters were compared between the groups of control and acute pancreatitis,and subgroups of non-severe and severe pancreatitis.The logistic regression analysis was used to identify the risk factors for acute pancreatitis and severe pancrea-titis,and the receiver operating characteristic(ROC)curve was used to analyze the diagnostic efficiency in diagnosis and classifica-tion of acute pancreatitis.Results The pancreatic CT value and ECV were independent risk factors for acute pancreatitis(P＜0.05),and the ECV was an independent risk factor for severe pancreatitis(P＜0.05).The area under the curve(AUC)of ECV was higher in acute pancreatitis group(0.81)and severe pancreatitis subgroup(0.68).Conclusion As a quantitative parameter,the ECV obtained from enhanced CT has higher clinical application value and higher popularity in the diagnosis and classification of acute pancreatitis.

This study aims to analyze the main drug resistance mechanism of Salmonella enteritidis induced by polymyxin in vitro.In this study,the resistance of Salmonella enteritidis CMCC(B)50335(ZK)to polymyxin was induced in vitro,and the growth characteristics,exercise ability,ul-trastructure and sensitivity to 16 antimicrobial agents before and after induction were determined by turbidimetry,semi-solid agar method,transmission electron microscope and disk diffusion method,and the whole genome and single nucleotide polymorphism(SNP)were detected by Illu-mina NovaSeq PE150 method.RT-qPCR was used to detect the differences in the expression levels of six drug-resistant related genes.The recombinant strain △phoPE1-128-1,which induced drug-resistant strain E1-128-1,was constructed by homologous recombination of Red Escherichia coli,and its sensitivity to polymyxin was detected.The results showed that three strains of induced drug-resistant bacteria E1-128-1,E1-128-3 and E2-128-3 were screened out,and the MIC increased by 128,64 and 64 times respectively after drug resistance stability test.Induced drug resistance had no significant effect on the growth ability of the tested bacteria and the sensitivity of 16 antibacte-rial drugs.The exercise ability of E1-128-1was significantly increased,and the cell wall and plasma membrane obviously thicken.There was no significant difference in the genome components of E1-128-1 before and after induction,but eight missense mutations of six drug-resistance related genes,including phoP/phoQ,cpxP,lptD,csrA and acrB,were detected,including four missense mutation sites of phoP,namely Leu185Trp,His189Ser,Thr190Tyr and Ile191His.The corresponding genes were sequenced by PCR,and the results were consistent with those of SNP.RT-qPCR results showed that the expression levels of mutant genes of the three induced strains increased signifi-cantly.Compared with E1-128-1,the MIC of △phoP E1-128-1 decreased to 1 mg/L.It is sug-gested that the mutation and increased expression of phoP gene are important factors for inducing polymyxin resistance of Salmonella CMCC(B)50335 in vitro.

Objective This study aims to investigate the therapeutic effect and mechanism of Naoxinqing on non-alcohol fatty liver disease (NAFLD) induced by a high-fat diet through network pharmacology,molecular docking and in vitro and in vivo experiments. Methods ApoE-/-mice were given a high-fat diet for 12 weeks to establish the NAFLD model,followed by a 12-week Naoxinqing administration. To evaluate the therapeutic effect of Naoxinqing on NAFLD induced by a high-fat diet,biochemical and histopathological experiments were performed,including assessment of blood lipids,liver function,serum inflammatory factors,as well as Hematoxylin and eosin (HE),Oil red O,and Sirius red staining of liver. Subsequently,network pharmacology and molecular docking techniques were employed to predict the key targets of Naoxinqing. Finally,the mechanism of Naoxinqing was validated by Western Blot in HepG2 cells and liver tissue. Results The results of serum biochemistry and liver tissue pathology showed that Naoxinqing can significantly improve high-fat diet-induced hepatic lipid accumulation,hepatocellular injury,and inflammation. Network pharmacology and molecular docking analysis results suggested that Naoxinqing may affect lipid metabolism through the AMP-activated protein kinase (AMPK)/Sirtuin 1 (SIRT1) pathway. Finally,in vitro cell experiment confirmed that the main mechanism of Naoxinqing is to activative the AMPK/SIRT1 pathway,upregulate the expression of downstream carnitine palmitoyltransferase 1 (CPT1A),promote fatty acid oxidation,and ultimately improve NAFLD. Conclusion This study demonstrated that Naoxinqing improved NAFLD by promoting fatty acid oxidation through the activation of the AMPK/SIRT1 pathway.

Objective : To investigate the effects of dihydroartemisinin ( DHA) on cell growth , migration invasion and vasculogenic mimicry ability of non⁃small cell lung cancer ( NSCLC) . Methods : Different concentrations of DHA were added to NSCLC cell lines A549 and H3255 , and after 24 hours , the cell viability was detected by CCK8 method , and the migration and invasion ability of NSCLC cells was detected by Transwell experiment . qRT⁃PCR and Western blot detected E ⁃cadherin , N ⁃cadherin , and Vimentin mRNA and protein expression levels , respectively .Three⁃dimensional cell was cultured to observe the vascular⁃like morphological generation of cells . qRT⁃PCR and Western blot detected human vascular endothelial cadherin (VE⁃cadherin) mRNA and protein expression levels as marker of vasculogenic mimicry . Results : DHA inhibited cell growth of A549 and H3255 and showed time⁃dependent and concentration⁃dependent . DHA inhibits the invasion and metastasis ( all P < 0. 001) of A549 and H325 cells ; DHA upregulated the expression of E ⁃Cadherin at mRNA(all P < 0. 001) and protein(P < 0. 001;P < 0. 01) levels in A549 and H3255 cells , and downregulated the expression of N ⁃cadherin at mRNA (all P < 0. 01) and protein (all P < 0. 001) levels as well as the expression of Vimentin at mRNA (P < 0. 01;P < 0. 001) and protein (all P < 0. 001) levels . The results of three⁃dimensional cell culture showed that the 12⁃hour vasculogenic mimicry generation capacity of DHA⁃treated A549 cells and H3255 cells was reduced , and the expressions of VE⁃cadherin at mRNA (P < 0. 001;P < 0. 01) and protein (all P < 0. 001) levels were downregulated . Conclusion Dihydroartemisinin inhibits the growth , migration invasion and vasculogenic mimicry ability of non⁃small cell lung cancer cells

Objective: To explore the correlation between epidermal growth factor receptor ( EGFR) mutation and brain metastasis in lung adenocarcinoma． Methods: Comparisons of brain metastasis between lung adenocarcinoma patients with EGFR exon 19 deletion ( 19 Del) and a single point mutation of L858R in exon 21 (21 L858R) at initial diagnosis and after EGFR-TKIs targeted therapy were analyzed．The CCK-8 assay was used to detect and calculate the semi-inhibitory concentration (IC50 ) of gefitinib against EGFR-mutated lung adenoma cell lines PC9 and H3255 . Results: Of the 410 patients with lung adenocarcinoma，a total of 153 (37. 3% ) cases had brain metastasis．Age，lymph node metastasis and 21 L858R mutation were high-risk factors for brain metastasis of lung adenocarcinoma．Among newly diagnosed 48 EGFR-mutated lung adenocarcinoma patients with brain metastasis ，the number of 19 Del and 21 L858R were 14 and 34，respectively (P = 0. 006) ．There were 17 patients with 19 Del and 20 patients with 21 L858R were observed to complicated by brain metastasis after receiving EGFR-TKIs targeted therapy．The median time of brain metastasis after EGFR-TKIs treatment were 15 months (8. 50，25. 00) and 7 months (4. 25，12. 25 ) ，respectively ( P = 0. 013 ) ． The IC50 of PC9 and H3255 to gefitinib were (0. 037 ± 0. 008) and (0. 150 ± 0. 040) μmol / L，respectively (P = 0. 007) ． Conclusion Age younger than or equal to 60 years，lymph node N2-3 stage，and EGFR 21 L858R mutation are high-risk factors for brain metastases in patients with lung adenocarcinoma，and the latter still has a shorter time to brain metastases than 19 Del mutations after treatment with EGFR-TKIs，which may be related to drug sensitivity.

Objective : To investigate the expression and clinical significance of classic vascular endothelial growth factor A (VEGFA) and vasotropic mimicry factor matrix metalloproteinase 14 (MMP⁃14) in lung adenocarcinoma(LUAD) . Methods : The expression levels of MMP⁃14 and VEGFA genes and proteins in LUAD and their correlation with survival and prognosis were analyzed using TCGA and UALCAN databases . Serum of 69 patients with LUAD and 20 healthy subjects (control group) was collected , and the contents of MMP⁃14 and VEGFA were detected by ELISA and chemiluminescence , respectively , to analyze the correlation between the two and the clinicopathological features of tumors and their value in prediction and diagnosis of LUAD . Results: The levels of MMP⁃14 and VEGFA in LUAD tissues and serum were higher than those in control group . There were significant differences in serum VEGFA and MMP⁃14 expression levels among early stage group , advanced stage group and control group (P< 0. 001) . MMP⁃14 was higher in T3 /T4 stage than that in T1 /T2 stage (P = 0. 045) , higher in N2 /N3 stage than that in N0 /N1 stage (P = 0. 035) , and higher in the pleural metastasis group than that in the non⁃pleural metastasis group (P = 0. 034) . VEGFA level was higher in M 1 than M0 (P = 0. 025) . Elevated VEGFA level was a risk factor for LUAD (P = 0. 002) . The area under the curve (AUC) of MMP⁃14 , VEGFA and CEA alone was 0. 793 , 0. 849 and 0. 851 , respectively , and the AUC of the combined test was 0. 952 . The overall survival ( OS) and disease specific survival (DSS) of MMP⁃14 and VEGFA low expression group were longer than those of MMP⁃14 and VEGFA high expression group (P < 0. 05) . Conclusion High expression of MMP⁃14 and VEGFA in LUAD is associated with the growth , invasion and metastasis of LUAD , respectively , and has implications for survival prognosis determination .

Objective:To establish the high performance liquid chromatography (HPLC)fingerprints of Zhuanggu Guanjie Pills, which provided the basis for its quality evaluation.Methods:HPLC was used with Agilent Eclipse XDB-C 18 column (4.6 mm×250 mm, 5 μm);mobile phase was acetonitrile-0.1% acetic acid water; gradient elution; flow rate was 1 ml/min; column temperature was at 35 ℃; detection wavelength was 254 nm; injection volume was 10 μl. The HPLC fingerprints of 15 batches of Zhuanggu Guanjie Pills were established and similarity analysis was carried out, and the contents of 18 components were estimated. Results:In the fingerprint study, isopsoralen was used as the reference peak, 40 common peaks were marked and 18 peaks were identified and the similarity between the fingerprints of 15 batches of Zhuanggu Guanjie Pills and the control fingerprints was greater than 0.99.Conclusion:This method is easy to operate and has high accuracy, which can provide basis and reference for the quality evaluation of Zhuanggu Guanjie Pills.