1.Profiling of the risk factors and a prediction model for upper arm port related infections
Mengsu ZHANG ; Shengxi XU ; Jie ZHANG ; Guangxin JIN ; Xuebin ZHANG ; Jun PU
Chinese Journal of Infection and Chemotherapy 2025;25(2):140-148
Objective To analyze the risk factors for upper arm ports(UAP)related infections and develop a nomogram for predicting the UAP related infections.Methods Patients(n=6 028)with UAP between 2014 and 2023 in Renji Hospital,Shanghai Jiao Tong University School of Medicine were included and assigned to a training set(n=4 219)or a validation set(n=1 809).Least Absolute Shrinkage and Selection Operator(LASSO)regression were built and non-zero factors were screened out.Multivariate logistic regression was performed for these non-zero factors to screen significant factors out for constructing a prediction model.The performance of the model was evaluated by the area under curve(AUC)of the receiver operating characteristic(ROC)curves,calibration curves,the decision curve analysis(DCA)curve,and clinical impact curves(CICs)in both training set and validation set.Results The model incorporated gender,venous access,venous status,catheter-related thrombosis(CRT),and diameter of catheter.The model performed well.The AUC of ROC was 0.801 in the training set and 0.746 in the validation set.The calibration curve was close to the ideal curve,indicating good discriminative ability of the model.The DCA curve suggested that the model could help make beneficial clinical decisions when the risk assessment value was 30%-41%.CICs proved that the model had good clinical value.Conclusions A model was successfully constructed to predict UAP-related infections.The brachial/basilic vein and 5F catheter was proposed as the first choice.Thicker catheter diameter,male,CRT,abnormal venous status,and axillary vein approach may increase the risk of UAP related infection.
2.Profiling of the risk factors and a prediction model for upper arm port related infections
Mengsu ZHANG ; Shengxi XU ; Jie ZHANG ; Guangxin JIN ; Xuebin ZHANG ; Jun PU
Chinese Journal of Infection and Chemotherapy 2025;25(2):140-148
Objective To analyze the risk factors for upper arm ports(UAP)related infections and develop a nomogram for predicting the UAP related infections.Methods Patients(n=6 028)with UAP between 2014 and 2023 in Renji Hospital,Shanghai Jiao Tong University School of Medicine were included and assigned to a training set(n=4 219)or a validation set(n=1 809).Least Absolute Shrinkage and Selection Operator(LASSO)regression were built and non-zero factors were screened out.Multivariate logistic regression was performed for these non-zero factors to screen significant factors out for constructing a prediction model.The performance of the model was evaluated by the area under curve(AUC)of the receiver operating characteristic(ROC)curves,calibration curves,the decision curve analysis(DCA)curve,and clinical impact curves(CICs)in both training set and validation set.Results The model incorporated gender,venous access,venous status,catheter-related thrombosis(CRT),and diameter of catheter.The model performed well.The AUC of ROC was 0.801 in the training set and 0.746 in the validation set.The calibration curve was close to the ideal curve,indicating good discriminative ability of the model.The DCA curve suggested that the model could help make beneficial clinical decisions when the risk assessment value was 30%-41%.CICs proved that the model had good clinical value.Conclusions A model was successfully constructed to predict UAP-related infections.The brachial/basilic vein and 5F catheter was proposed as the first choice.Thicker catheter diameter,male,CRT,abnormal venous status,and axillary vein approach may increase the risk of UAP related infection.
3.Raddeanin A regulates tumor immunity and exerts anti-tumor effects in prostate cancer mice by inhibiting programmed cell death ligand 1
Benjian YU ; Shijia LIANG ; Xu SONG ; Shengxi ZHANG ; Yun ZHANG
Chinese Journal of Pathophysiology 2024;40(9):1622-1628
AIM:To investigate the therapeutic effect of raddeanin A(RA)on prostate cancer xenograft mouse model,and to explore its potential mechanisms.METHODS:(1)Western blot analysis was used to investigate the effects of different concentrations(0,0.5,1,2 and 4 μmol/L)of RA on the expression of programmed cell death li-gand 1(PD-L1)protein in prostate cancer cell lines PC-3,DU145 and RM-1.(2)Thirty C57BL/6J mice were randomly divided into blank group,low-dose RA group,and high-dose RA group,with 10 mice in each group.The mice in low-and high-dose RA groups were intraperitoneally injected with 2 and 4 mg/kg RA continuously for 24 d,respectively.Mouse body weight was recorded,and tumor volume and weight were measured.Immunohistochemistry experiments were con-ducted to detect the expression of Ki67 and PD-L1 proteins in mouse tumor tissues.Flow cytometry was used to determine the percentages of CD8+T cells,CD4+T cells and regulatory T cells(Treg),as well as the levels of interferon-γ(IFN-γ)and granzyme B(GzmB)in tumor tissues.RESULTS:Treatment with RA significantly reduced the expression of PD-L1 in PC-3,DU145 and RM-1 cells(P<0.05 or P<0.01).In vivo experiments showed that RA treatment led to significant decreases in tumor volume and weight(P<0.05 or P<0.01).Additionally,the expression levels of Ki67 and PD-L1 in tu-mor tissues were significantly reduced(P<0.05 or P<0.01).Furthermore,RA treatment significantly increased the per-centages of CD8+T cells and CD4+T cells within mouse tumors,elevated the levels of IFN-γ and GzmB,and reduced the number of activated Treg(P<0.05 or P<0.01).CONCLUSION:The RA exhibits potent inhibitory effects on tumor growth in a prostate cancer xenograft mouse model.Its mechanism may be associated with the inhibition of PD-L1 expres-sion,increased infiltration of tumor-infiltrating T cells,and suppression of Treg.
4.Comparison of clinical effect between radiotherapy and chemoradiotherapy and analysis of the prognostic factors in 229 elderly patients with esophageal squamous cell cancer
Hesan LUO ; Hongyao XU ; Yixuan LI ; Shengxi WU ; Hecheng HUANG ; Lianxing LIN
Chongqing Medicine 2017;46(5):612-614,618
Objective To compare of clinical effect between radiotherapy and chemoradiotherapy and investigate the prognostic factors in elderly patients with esophageal squamous cell cancer.Methods 229 elderly patients with esophageal squamous cell cancer who received radiotherapy and chemoradiotherapy from January 2009 to December 2013 were retrospective analyzed.The Local control rate and survival rate were calculated by Kaplan-Meier method,and the short effect and long term effect between radiotherapy and chemoradiotherapy were compared.Cox regression model was used for invariant analysis and multivariate analysis.Results The follow up time was 15.3months.The short effect of radiotherapy group was not better than that of chemoradiotherapy group,with CR 35.6% vs 45.8%,RR 61.0% vs 53.0%,SD 2.7% vs 0 and PD 0.7% vs 1.2% (P=0.211).The 1-,2-,3-year local control rates of radiotherapy group were significantly poorer than that of chemoradiotherapy group,with 82.8 %,60.5 % and 52.7% vs 89.5%,85.4% vs 80.9%,respectively (P=0.009).However,there were no significance difference between the 1-,2-,3-year survival rates of radiotherapy group and chemoradiotherapy group,with 66.4%,29.5%,17.1% vs.65.9%,40.3 %,30.8 %,respectively (P =0.071).In invariant analysis,T stage,N stage,clinical stage and radiotherapy dose (< 60 Gy,60 ~66 Gy,>66 Gy) were related with the prognosis of esophageal carcinoma.The COX regression model showed that T stage,N stage and radiotherapy dose were independent prognostic factors that effected survival rate.Conclusion In elderly patients with esophageal squamous cell cancer,chemoradiotherapy can improve the local control rates,but not benefit the survival rate.T stage,N stage and radiotherapy dose were independent prognostic factors that effected survival rate,which could provided evidence for prognosis judgement and clinical practice.
5.A computed tomography-based study of the non-surgical N staging system for esophageal carcinoma
Hongyao XU ; Yixuan LI ; Shengxi WU ; Hesan LUO ; Hecheng HUANG ; Lianxing LIN
Chinese Journal of Radiation Oncology 2016;25(10):1066-1069
Objective To improve the non?surgical N staging system for esophageal carcinoma ( EC) . Methods A retrospective analysis was performed in 501 patients newly diagnosed with esophageal squamous cell carcinoma who received radiotherapy in our hospital from 2009 to 2013. The impacts of the supraclavicular lymph nodes and mediastinal lymph nodes on the overall survival ( OS) rate were analyzed. The original non?surgical N staging system was improved and the proposed N staging system was evaluated. The OS rates were calculated using the Kaplan?Meier method and analyzed using the log?rank test. The univariate and multivariate analyses were performed using the log?rank test and Cox regression model, respectively. Results The 3?and 5?year sample sizes were 404 and 205, respectively. In all patients, the 1?, 3?, and 5?year OS rates were 64?9%, 26?5%, and 18?3%, respectively;the 1?, 3?, and 5?year distant metastasis?free ( DMF) rates were 86?2%, 68?9%, and 67?3%, respectively;the 1?, 3?, and 5?year local control rates were 72?7%, 53?1%, and 43?6%, respectively. The univariate analysis showed that the incidence, 3?year OS rate, and 3?year DMF rate of supraclavicular lymph node metastases in patients with cervical and upper?thoracic EC were significantly higher than those in patients with middle?thoracic and lower?thoracic EC ( 25?7% vs. 14?2%, P=0?034;24?2% vs. 11?5%, P=0?016;84?8% vs. 69?2%, P=0?007) . The multivariate analysis also showed that the number of metastatic lymph nodes was an independent prognostic factor for the OS and DMF rates in patients ( P= 0?000;P= 0?007 ) . Conclusions It is reasonable to classify upper?thoracic EC with supraclavicular lymph node metastasis into stage N1 diseases. The proposed N staging system with the factor of the number of metastatic lymph nodes is more scientific and objective than the original N staging system.
6."Screening of Ingredients Assembling of Chinese Medicine ""BZL"" Prescription and Its Effect on Experimental Fatty Liver Rats"
Shengxi MENG ; Yiyang HU ; Qin FENG ; Jinghua PENG ; Yu ZHAO ; Liang CHEN ; Lin XU ; Lin LIU ; Yamei HAI ; Chungeng LIANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(1):45-51
This study was aimed to explore five Chinese medicine components or ingredients from Qu-Shi Hua-Y u Decoction (QSHYD) with uniform design method and screen ingredients assembling of Chinese medicine BZL pre-scription in order to verify its therapeutic effect on experimental fatty liver rats. High-fat diet was used in the estab-lishment of fatty liver rat models. Five effective ingredients (i.e., chlorogenic acid, geniposide, curcumin, polydatin and polysaccharide of Atractylodes macrocephala Koidz) of QSHYD were used as study subjects. Uniform design was applied in the grouping design. The intragastric administration was given for four weeks. The screening index was the content of liver triglyceride (TG). The ingredients assembling of Chinese medicine BZL prescription was screened through uniform design and regression analysis. The same fatty liver animal model was used in the comparison be-tween QSHYD and rosiglitazone. The TG content in liver tissues of rats and serum ALT activity were detected. The pathological changes of liver tissues were observed (HE stain and oil red O stain) with Ridit analysis to verify its therapeutic effect. The results showed that through screening, the regression equation was Y = 15.083X1 + 5.321X2- 5.186X3 - 16.157X4 + 9.35X5 + 17.667X3X4 - 8.422X1X2 - 6.617X3X5 + 16.571 (X1: chlorogenic acid, X2:polydatin, X3: polysaccharide of Atractylodes macrocephala Koidz, X4: geniposide, X5: curcumin). According to this equation, the best TG reducing effect occurred when the chlorogenic acid (X1), polysaccharide of Atractylodes macrocephala Koidz (X3), and geniposide (X4) were the maximum dosage. It showed that the best combination in inhibiting TG content in liver tissues was X3, X4 and X1 (i.e. BLZ prescription). Among fatty liver rat mod-els induced with same high-fat diet, the screened Chinese medicine ingredient BZL prescription can obviously reduce its TG content in liver tissues and serum ALT activity ( P < 0 . 01 ) . It obviously improved the fatty degen-eration of rat's liver. It was concluded that ingredients assembling of Chinese medicine BZL prescription screened through uniform design can obviously prevent and treat fat deposition and injury of the liver among rat models induced by high-fat diet .
7.Effect of stress on myocardial apoptosis in ischemic preconditioning in rabbit hearts.
Huashan XU ; Shengxi CHEN ; Wanjun LUO ; Khan Mohammed FIROJ
Journal of Central South University(Medical Sciences) 2014;39(5):477-482
OBJECTIVE:
To determine the influence of stress on myocardial apoptosis in ischemic preconditioning group (IPC).
METHODS:
Twenty-four Japanese white rabbits were randomly divided into 4 groups (n=6): an etomidate group (the Etom group) of depressed stress established by intravenous etomidate, an IPC group, an ischemic reperfusion group (the IR group) and a methylprednisolone group (the MP group). Myocardial apoptosis was examined by DNA-laddering, in situ nick-end labeling (TUNEL) and Hoechst dyeing.
RESULTS:
The DNA ladder increased in the Etom group. The percentage of apoptosis by TUNEL method was 1.7%±0.2% in the IPC group, 2.3%±0.8% in the MP group, 3.8%±1.3% in the IR group and 3.0%±0.4% in the Etom group. Hoechst dying was 4.1%±0.9% in the IPC group, 3.5%±0.4% in the MP group, 6.2%±1.6% in the IR group and 7.6%±0.4% in the Etom group. There was significant difference between the IPC group and the Etom group or IR group, and also between the MP group and the IR group.
CONCLUSION
A depressed stress response impairs the inhibition on myocardial apoptosis in ischemic preconditioning. Methylprednisolone may inhibit myocardial apoptosis.
Animals
;
Apoptosis
;
Etomidate
;
pharmacology
;
Heart
;
drug effects
;
Ischemic Preconditioning
;
Ischemic Preconditioning, Myocardial
;
Methylprednisolone
;
pharmacology
;
Myocardium
;
pathology
;
Rabbits
8.Role of stress in myocardial protection of ischemic preconditioning
Huashan XU ; Shengxi CHEN ; Wanjun LUO ; Haihe JIANG
Journal of Central South University(Medical Sciences) 2013;38(8):804-808
Objective:To determine the role of stress in myocardial protection of ischemic preconditioning (IPC).
Methods:hTirty rabbits were randomly divided into an IPC group, an etomidate (Etom) group, an ischemic/reperfusion (IR) group, a methylprednisolone (MP) group and a sham group. hTe ratio of infarction size versus risk area (infarct/risk) was calculated. hTe elevations of the serum creatine kinase (CK) activity and cardiac troponin I (cTnI) concentrations as well as the serum cortisol concentrations were measured.
Results:hTe percentages of infarct/risk in the IPC group, the MP group, the IR group, and the Etom group were (5.86±2.81)%, (11.28±3.62)%, (26.79±4.53)%, and (18.19±3.72)%, respectively. The elevations of the serum CK activity in the IPC group, the MP group, the IR group, and the Etom group were (255±89), (314±160), (855±371), and (768±404) U/L, respectively. hTe elevations of serum cTnI concentrations in the IPC group, the MP group, the IR group, and the Etom group were (3.6±0.6),(6.1±2.2), (8.1±3.6), and (6.4±1.6)μg/L, respectively. Those indicators among the groups were signiifcantly different (P<0.05). Cortisol reaction was markedly diminished in the Etom group.
Conclusion: A blunted cortisol reaction can markedly reduce the benefit of IPC while methylprednisolone shows cardioprotective effects, suggesting that stress might be involved in the myocardial protection of IPC.
9.A controlled clinical trial of radiotherapy combined with docetaxol and cisplatin in the treatment of locally advanced non-small cell lung cancer
Hecheng HUANG ; Zhiyuan XU ; Lianxing LIN ; Hesan LUO ; Shengxi WU
Chinese Journal of Primary Medicine and Pharmacy 2012;19(9):1314-1316
Objective To evaluate the clinical effectiveness and the major toxic effect of radiotherapy combined with docetaxol and cisplatin respectively in the treatment of locally advanced non-small cell lung cancer (NSCLC).Methods 98 patients with locally advanced NSCLC were randomly divided into two groups.All of the patients were treated with 3D-CRT.One group was treated combined with docetaxel,20mg/m2,every week,totally 6 times.The other group was treated combined with cisplatin,30mg/m2,every week,totally 6 times.The total dose was 60 ~66Gy,2Gy/F,5 times each week for 5 ~7 weeks.The clinical effect and the major toxic effect between two groups were compared.Results The median survival time in group that treated with docetaxol was 17.2 months,median progression-free survival time was 13.5 months,and the 1,2 and 3-year survival rates of the patients were 78.6%,35.7% and 19.5% respectively.The median survival time in group that treated with cisplatin was 16 months,median progression-free survival time was 16.5 months,and the 1,2 and 3-year survival rates of the patients were 74%,34% and 20% respectively.The differences between two group were not stetisticelly significant( P >0.05 ).However,the side effect of the stomach and intestine and late radiation complication in group treated with docetaxol were slighter than those in group treated with cisplatin.Conclusion The clinical effect of radiotherapy combined with docetaxol in the treatment of locally advanced NSCLC was equal to radiotherapy combined with cisplatin.But radiotherapy combined with docetaxol has a slighter and acceptable toxic effect,which was worth the clinical application.
10.Telephone follow-up of 1635 post-surgery lung cancer patients and retrospective study of lung cancer prognosis.
Xuyuan KUANG ; Liwei XU ; Guoqiang LIN ; Heng ZHANG ; Qinghua HU ; Wanjun LUO ; Shengxi CHEN ; Lingjin HUANG
Journal of Central South University(Medical Sciences) 2012;37(9):895-900
OBJECTIVE:
To evaluate the telephone follow-up of surgery patients with lung cancer and to analyze the prognosis factors.
METHODS:
From October 2011 to January 2012, 1635 post-surgery lung cancer patients from January 2002 to August 2011 were followed up by telephone interview. The data from follow-up and clinical characteristics were collected and analyzed. Among these patients, 116 patients with complete and reliable clinical data were further analyzed to determine the effective factors of lung cancer metastasis and long-term survival.
RESULTS:
The average response rate in the follow-up was 36.1%, and the response rate was related to the interval time after the operations. The shorter the interval, the higher the response rate. The response rate in female patients was higher than that in male patients (P<0.001).The response rate was higher in patients younger than 40 (56 %) than that in the patients aged between 50-59 and over 60 (39% and 24% respectively, P<0.001). There was no statistical difference between patients from urban and rural areas (P=0.844). In the 116 patients with complete and reliable clinical data, statistical analysis confirmed that the metastasis and high lymph node staging were factors to increase patients' risk of death (with odd ratio 0.212 and 1.818 respectively, P<0.001). The adenocarcinoma grade, high lymph node staging and advanced age were related to the metastasis risk (odds ratio 2.353, 2.181 and 2.908, respectively).
CONCLUSION
Time, gender and age are the influencing factors in the telephone follow-up. Metastasis, lymph node metastasis, pathologic type and age are related to the lung cancer prognosis in the small-scale sample.
Adenocarcinoma
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surgery
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Adolescent
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Adult
;
Aged
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Aged, 80 and over
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Carcinoma, Squamous Cell
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surgery
;
Female
;
Follow-Up Studies
;
Humans
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Lung Neoplasms
;
surgery
;
Male
;
Middle Aged
;
Postoperative Period
;
Prognosis
;
Quality of Life
;
Retrospective Studies
;
Telephone
;
Young Adult

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