1.Mechanism of Icariin in Regulating TGF-β1/Smad Pathway to Induce Autophagy in Human Bone Microvascular Endothelial Cells
Yaqi ZHANG ; Yankun JIANG ; Guoyuan SUN ; Bo LI ; Ran DING ; Cheng HUANG ; Weiguo WANG ; Qidong ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):123-130
ObjectiveTo investigate the regulatory effect of icariin (ICA) on transforming growth factor-β1 (TGF-β1)/Smad pathway in bone microvascular endothelial cells (BMECs) and the effect on autophagy in BMECs. MethodsBMECs were isolated and cultured, and the cell types were identified by immunofluorescence. Cells were divided into the control group, model group (0.1 g·L-1 methyl prednisolone), ICA group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA), and TGF-β inhibitor group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA +1×10-5 mol·L-1 LY2157299). Transmission electron microscopy was used to observe the ultrastructure and autophagosome number of BMECs. Autophagy double-standard adenovirus was used to monitor the confocal autophagy flow generation of each cell. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the gene and protein expression of autophagy in the TGF-β1/ Smad pathway. ResultsAfter cell separation culture, platelet endothelial cell adhesion molecule (CD31) and von willebrand factor (vWF) immunofluorescence identified BMECs. Transmission electron microscopy showed that the cell membrane was damaged, and the nucleus was pyknotic and broken in the model group. Compared with the model group, the ICA group had complete cell membranes, clear structures, with autophagy-lysosome sparsely distributed. The confocal photo showed that BMECs had autophagosomes and autophagy-lysosomes, and the autophagy expression of the ICA group was similar to that of the blank group. Compared with the blank group, in the model group and the LY2157299 group, autophagosomes and autophagy-lysosomes were barely seen in the autophagy flow. Compared with the blank group, the mRNA and protein expressions of autophagy effector protein 1 (Beclin1) and microtubule-associated protein 1 light chain 3B (LC3B) in the model group were significantly decreased (P<0.01), and those of ubiquitin-binding protein (p62) were significantly increased (P<0.01). The mRNA expression of TGF-β1, Smad homolog 2 (Smad2), and Smad homolog 3 (Smad3) decreased (P<0.05, P<0.01). The protein expressions of TGF-β1, p-Smad2, and p-Smad3 were significantly decreased (P<0.01). Compared with those of the model group, the mRNA and protein expression of Beclin1 and LC3B in BMECs of the ICA group increased (P<0.01), and those of p62 significantly reduced (P<0.01). The mRNA expression of TGF-β1, Smad2, and Smad3 increased significantly (P<0.01). The protein expression of TGF-β1, p-Smad2, and p-Smad3 increased significantly (P<0.01). Compared with those in the model group, the mRNA and protein expressions of Beclin1, LC3B, and p62 in the inhibitor group were not statistically significant. The expression of key genes and proteins of the TGF-β1 pathway in the inhibitor group was not statistically significant. ConclusionICA can promote glucocorticoid-induced autophagy expression of BMECs, and its mechanism may be related to activating the TGF-β1/Smad signaling pathway.
2.Mechanism of Traditional Chinese Medicine in Treating Steroid-Induced Osteonecrosis of Femoral Head via Regulating PI3K/Akt Pathway: A Review
Yaqi ZHANG ; Bo LI ; Jiancheng TANG ; Ran DING ; Cheng HUANG ; Yaping XU ; Qidong ZHANG ; Weiguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):141-149
Steroid-induced osteonecrosis of the femoral head (SONFH) is a severe musculoskeletal disorder often induced by the prolonged or excessive use of glucocorticoids. Characterized by ischemia of bone cells, necrosis, and trabecular fractures, SONFH is accompanied by pain, femoral head collapse, and joint dysfunction, which can lead to disability in severe cases. The pathogenesis of SONFH involves hormone-induced osteoblast apoptosis, bone microvascular endothelial cell (BMEC) apoptosis, oxidative stress, and inflammatory responses. The phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway plays a pivotal role in the development of the disease. Modulating the PI3K/Akt signaling pathway can promote Akt phosphorylation, thereby stimulating the osteogenic differentiation of bone marrow mesenchymal stem cells and osteoblasts, promoting angiogenesis in BMECs, and inhibiting osteoclastogenesis. The research on the treatment of SONFH with traditional Chinese medicine (TCM) has gained increasing attention. Recent studies have shown that TCM monomers and compounds have potential therapeutic effect on SONFH by intervening in the PI3K/Akt signaling pathway. These studies not only provide a scientific basis for the application of TCM in the treatment of SONFH but also offer new ideas for the development of new therapeutic strategies. This review summarized the progress in Chinese and international research on the PI3K/Akt signaling pathway in SONFH over the past five years. It involved the composition and transmission mechanisms of the signaling pathway, as well as its regulatory effects on osteoblasts, mesenchymal stem cells, osteoclasts, BMECs, and other cells. Additionally, the review explored the TCM understanding of SONFH and the application of TCM monomers and compounds in the intervention of the PI3K/Akt pathway. By systematically analyzing and organizing these research findings, this article aimed to provide references and point out directions for the clinical prevention and treatment of SONFH and promote further development of TCM in this field. With in-depth research on the PI3K/Akt pathway and the modern application of TCM, it is expected to bring safer and more effective treatment options for patients with SONFH.
3.Management status and influencing factors of disease stabilization in patients with severe mental disorders in Luzhou City, Sichuan Province
Xuemei ZHANG ; Bo LI ; Benjing CAI ; Youguo TAN ; Bo XIANG ; Jing HE ; Qidong JIANG ; Jian TANG
Sichuan Mental Health 2025;38(2):131-137
BackgroundSevere mental disorders represent a major public health concern due to the high disability rates and substantial disease burden, which has garnered significant national attention and prompted their inclusion in public health project management systems. However, credible evidence regarding the current status of disease management and factors influencing disease stabilization among patients with severe mental disorders in Luzhou City, Sichuan Province, remains limited. ObjectiveTo investigate the current management status of patients with severe mental disorders in Luzhou City, Sichuan Province, and to analyze influencing factors of disease stabilization among patients under standardized care, so as to provide evidence-based insights for developing targeted management strategies to optimize clinical interventions for this patient population. MethodsIn March 2023, data were extracted from the Sichuan Mental Health Service Comprehensive Management Platform for patients with severe mental disorders in Luzhou City who received management between December 2017 and December 2022. Information on mental health service utilization and clinical status changes was collected. Trend analysis was conducted to evaluate temporal changes in key management indicators for severe mental disorders in Luzhou City. Logistic regression analysis was employed to identify factors influencing the disease stabilization or fluctuation of these patients. ResultsThis study enrolled a total of 20 232 patients. In Luzhou City, the stabilization rate and standardized management rate of severe mental disorders were 94.89% and 79.36% in 2017, respectively, which increased to 95.33% and 96.92% by 2022. The regular medication adherence rate rose from 34.42% in 2018 to 86.81% in 2022. In 2022, the regular medication adherence rate was 71.80% for schizophrenia, 55.26% for paranoid psychosis, and 51.43% for schizoaffective disorder. Multivariate analysis identified the following protective factors for disease stabilization: age of 18~39 years (OR=0.613, 95% CI: 0.409~0.918), age of 40~65 years (OR=0.615, 95% CI: 0.407~0.931), urban residence (OR=0.587, 95% CI: 0.478~0.720), and regular medication adherence (OR=0.826, 95% CI: 0.702~0.973). Risk factors for disease fluctuation included poor (OR=1.712, 95% CI: 1.436~2.040), non-inclusion in care-support programs (OR=1.928, 95% CI: 1.694~2.193), non-participation in community rehabilitation (OR=2.255, 95% CI: 1.930~2.634), and intermittent medication adherence (OR=3.893, 95% CI: 2.548~5.946). ConclusionThe stability rate, standardized management rate, and regular medication adherence rate of patients with severe mental disorders in Luzhou City have shown a year-by-year increase. Age, household registration status, economic condition, medication compliance, and community-based rehabilitation were identified as influencing factors for disease fluctuation in these patients. [Funded by Luzhou Science and Technology Plan Project (number, 2022-ZRK-186)]
4.Risk factors for liver cancer in chronic hepatitis B patients and construction of a nomogram prediction model
Yichen ZHU ; Chunxia SHA ; Chunsun FAN ; Tiejun ZHANG
Journal of Clinical Hepatology 2024;40(12):2441-2449
ObjectiveTo investigate the risk factors for liver cancer in patients with chronic hepatitis B (CHB) in the Qidong Chronic Hepatitis B cohort, and to construct a nomogram model for predicting the risk of liver cancer in CHB patients. MethodsA structured questionnaire survey was conducted among the CHB patients, aged ≥18 years, who attended the outpatient service of Qidong Third People’s Hospital from January 1 to December 31, 2016. The onset of liver cancer was defined as the primary outcome, and the outcomes of the cohort were obtained from Qidong Cancer Registry. Baseline clinical features were compared ;between the liver cancer group and the non-liver cancer group. The independent-samples t test or the Mann-Whitney U test was used for comparison of continuous data between two groups, and the chi-square test or the Fisher’s exact test was used for comparison of categorical data between groups. The Cox regression model was used to analyze the risk factors for liver cancer in CHB patients and calculate their hazard ratio (HR) and 95% confidence interval (CI); the variables with statistical significance in the univariate Cox regression analysis were included in the LASSO regression analysis, and then the variables obtained were included in the multivariate Cox regression analysis to establish a predictive model. The nomogram was used to visualize the complex model. The receiver operating characteristic (ROC) curve, index of concordance (C-index), and the calibration curve were used to assess the predictive efficacy of the model, and the decision curve was used to evaluate the clinical practicability of the nomogram. ResultsA total of 1 479 CHB patients were selected, among whom 58 patients with a confirmed diagnosis of liver cancer, 15 with missing data on testing indicators, and 164 with missing data on important information in the questionnaire were excluded, and finally 1 242 subjects were included in the study. Up to December 31, 2023, there were 67 new cases of liver cancer after a median follow-up time of 7.71 years, and the incidence density of liver cancer was 729.78/100,000 person-years. There were significant differences between the liver cancer group and the non-liver cancer group in age, sex, educational level, liver cirrhosis, duration of liver cirrhosis, history of diabetes mellitus, albumin, total bilirubin (TBil), direct bilirubin, aspartate aminotransferase, aspartate aminotransferase, gamma-glutamyl transpeptidase (GGT), and alkaline phosphatase (all P<0.05). The multivariate Cox regression analysis showed that the increase in age (HR=1.07, 95%CI: 1.05 — 1.10, P<0.001), a relatively high level of TBil (HR=1.98, 95%CI: 1.15 — 3.42, P=0.014), a relatively high level of GGT (HR=2.41, 95%CI: 1.43 — 4.08, P=0.001), and a long duration of liver cirrhosis (HR=1.09, 95%CI: 1.02 — 1.15, P=0.009) were independent risk factors for liver cancer in CHB patients. A nomogram prediction model was constructed based on the above four indicators, with an area under the ROC curve of 0.790, 0.845, and 0.829, respectively, in predicting the risk of liver cancer in CHB patients at 1, 3, and 5 years, and the bootstrap resampling method was used for internal validation and showed a C-index of 0. 778. The calibration curve showed that the prediction model had good stability, and the decision curve showed that it had certain clinical practicability. ConclusionThe increase in age, relatively high levels of TBil and GGT, and a long duration of liver cirrhosis are independent risk factors for liver cancer in CHB patients, and the nomogram model constructed based on these factors has a good predictive value and can be used in clinical practice to help develop strategies for the long-term monitoring of liver cancer.
5.Trends of heart disease death and prediction of life expectancy without cause of death in Qidong City in 1990-2019
Lulu DING ; Yonghui ZHANG ; Yuanyou XYU ; Yongsheng CHEN ; Jun WANG ; Jian ZHU
Journal of Public Health and Preventive Medicine 2024;35(2):30-33
Objective To analyze the trend of heart disease death and the life expectancy without cause of death in Qidong City, Jiangsu Province from 1990 to 2019, and to provide reference for the prevention and control of heart disease. Methods Data on heart disease deaths among residents in Qidong City from 1990 to 2019 were collected through the Qidong City Death Registration and Monitoring System. The crude mortality rate (CR) and Chinese age-standardized mortality rate (CASR), potential years of life loss (PYLL), average years of life loss (AYLL), potential life loss years rate (PYLLR), life expectancy, and life expectancy without cause of death were calculated, and the annual percentage change (APC) was used to analyze the trend of heart disease death. Using SAS9.2 software, the death trend prediction was conducted by the ARIMA model in time series analysis. Results From 1990 to 2019, 27,762 residents died of heart disease in Qidong City, with a CR of 81.20/100 000 and an APC of 3.734%. There were 12 358 deaths of heart disease in men, with a CR of 73.24/100 000 and an APC of 3.86%, while there were 15 404 deaths of heart disease in women, with a CR of 88.95/100 000 and an APC of 3.63%. CR showed an upward trend (all P < 0.001). The PYLL for heart disease was 66 192.00 person-years, the AYLL was 13.23 person-years, and the PYLLR was 2.16‰. The life expectancy loss from heart disease was gradually increasing: 0.89 years in 1990 to 1.85 years in 2019, with an APC of 0.405% (P<0.001, a statistically significant trend). The prediction results showed that in 2029, the life expectancy after heart disease would reach 88.17 years. Conclusion From 1990 to 2019, the crude mortality rate of heart disease in Qidong City has showed an increasing trend, leading to an increasing loss of life due to heart disease year by year. The mortality rate and life loss of heart disease in women are higher than those in men. Targeted intervention measures should be further adopted to reduce the mortality rate of heart disease among residents in Qidong.
6.Role of Wnt signaling Pathway in Diabetic Osteoporosis and Traditional Chinese Medicine Intervention: A Review
Yaqi ZHANG ; Weiguo WANG ; Qidong ZHANG ; Huizhong BAI ; Lingling QIN ; Feng GAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(9):283-292
Diabetic osteoporosis (DOP) is a kind of bone complication caused by diabetes, which is characterized by the decrease of bone mineral density, the change of bone microstructure and the increase of bone fragility. The process of DOP is closely related to high glucose, insulin resistance, oxidative stress and other mechanisms. The Wnt/β-catenin signaling pathway plays an important role in mediating insulin resistance and bone metabolic balance in diabetes. Regulation of Wnt signal transduction promotes the expression of glycogen synthase kinase-3β(GSK-3β)phosphorylation and improves glucose and lipid metabolism. The Wnt/β-catenin signaling pathway is also an important way regulating osteocyte-driven bone remodeling, which not only plays an important regulatory role in the balance between osteoblasts and osteoclasts and improve bone metabolic homeostasis, but also promotes the expression of osteopontin, osteocalcin and type Ⅰ collagen, and improves bone proliferation and osteogenic differentiation by regulating the Wnt pathway. In recent years, the research of traditional Chinese medicine (TCM) in the prevention and treatment of DOP has gradually increased, and the exploration of TCM to interfere with the Wnt pathway to improve DOP has made some progress. This paper collects and summarizes the studies on the Wnt signaling pathway in glucose metabolism, bone metabolism and DOP worldwide in the past decade, as well as the related literature on the intervention of DOP by TCM compounds (classical and other compounds), single Chinese medicine and TCM monomers based on the Wnt pathway, in order to provide a reference and direction for the development of new drugs for clinical prevention and treatment of DOP.
7.Long-term trend analysis of liver cancer survival rate in Qidong region, Jiangsu Province, 1972-2019.
Yong Sheng CHEN ; Jun WANG ; Lu Lu DING ; Yuan You XU ; Yong Hui ZHANG ; Jian Guo CHEN ; Jian ZHU ; Jian FAN
Chinese Journal of Hepatology 2023;31(6):634-639
Objective: To analyze the incidence and survival rate of liver cancer cases in the entire population in the Qidong region from 1972 to 2019, so as to provide a basis for prognosis evaluation, prevention, and treatment. Methods: The observed survival rate (OSR) and relative survival rate (RSR) of 34 805 cases of liver cancer in the entire Qidong region population from 1972 to 2019 were calculated using Hakulinen's method with SURV3.01 software. Hakulinen's likelihood ratio test was used for statistical analysis. Age-standardized relative survival (ARS) was calculated using the International Cancer Survival Standard. The Joinpoint regression analysis was performed with Joinpoint 4.7.0.0 software to calculate the average annual percentage change (AAPC) of the liver cancer survival rate. Results: 1-ASR increased from 13.80% in 1972-1977 to 50.20% in 2014-2019, while 5-ASR increased from 1.27% in 1972-1977 to 27.64% in 2014-2019. The upward trend of RSR over eight periods was statistically significant (χ (2) = 3045.29, P < 0.001). Among them, male 5-ASR was 0.90%, 1.80%, 2.33%, 4.92%, 5.43%, 7.05%, 10.78%, and 27.78%, and female 5-ASR was 2.33%, 1.51%, 3.35%, 3.92%, 3.84%, 7.18%, 11.45%, and 29.84%, respectively. There was a statistically significant difference in RSR between males and females (χ (2) = 45.68, P < 0.001). The 5-RSR for each age group of 25-34 years old, 35-44 years old, 45-54 years old, 55-64 years old, 65-74 years old, and 75 years old were 4.92%, 5.29%, 8.17%, 11.70%, 11.63%, and 9.60%, respectively. There were statistically significant differences in RSR among different age groups (χ (2) = 501.29, P < 0.001). The AAPC in Qidong region from 1972 to 2019 for 1-ARS, 3-ASR, and 5-ARS were 5.26% (t = 12.35, P < 0.001), 8.10% (t = 15.99, P < 0.001), and 8.96 % (t = 16.06, P < 0.001), respectively. The upward trend was statistically significant in all cases. The AAPC of 5-ARS was 9.82% in males (t = 14.14, P < 0.001), and 8.79% in females (t = 11.48, P < 0.001), and the upward trend was statistically significant in both. The AAPC of 25-34 years old, 35-44 years old, 45-54 years old, 55-64 years old, 65-74 years old, and 75 years old were 5.37% (t = 5.26, P = 0.002), 5.22% (t = 5.66, P = 0.001), 7.20% (t = 6.88, P < 0.001), 10.00% (t = 12.58, P < 0.001), 9.96% (t = 7.34, P < 0.001) and 8.83% (t = 3.51, P = 0.013), and the upward trend was statistically significant. Conclusion: The overall survival rate of registered cases of liver cancer in the Qidong region's entire population has greatly improved, but there is still much room for improvement. Hence, constant attention should be paid to the study on preventing and treating liver cancer.
Male
;
Humans
;
Female
;
Adult
;
Middle Aged
;
Aged
;
Survival Rate
;
Liver Neoplasms/epidemiology*
;
Prognosis
;
Incidence
;
Software
;
China/epidemiology*
8.Construction of a competing risk model for disease-free survival of patients with non-muscle invasive bladder cancer
Li WANG ; Zihe PENG ; Qidong LUO ; Shanlong HUANG ; Yun SUN ; Min ZHANG ; Luan JIA ; Le ZHAO ; Hongliang LI
Journal of Modern Urology 2023;28(6):487-492
【Objective】 To construct an easy-to-use individual survival prognostic tool based on competing risk analyses to predict the risk of 1-, 2- and 3- year recurrence for patients with non-muscle invasive bladder cancer (NMIBC). 【Methods】 The follow-up data of 419 NMIBC patients were obtained. The patients were randomly divided into training cohort (n=293) and validation cohort (n=126). The variables included age at diagnosis, sex, history of smoking, tumor number, tumor size, histolo-gic grade, pathological stage, and bladder perfusion drug. The cumulative incidence function (CIF) of recurrence was estimated using all variables in the training cohort and potential prognostic variables were determined with Gray’s test. The Fine-Gray subdistribution proportional hazard approach was used as a multivariate competitive risk analysis to identify independent pro-gnostic variables. A competing risk nomogram was developed to predict the recurrence. The performance of the competing risk model was evaluated with the area under the receiver operating characteristic curve (AUC), calibration curve, and Brier score. 【Results】 Five independent prognostic factors including age, number of tumors, tumor size, histologic grade and pathological stage were used to construct the competing risk model. In the validation cohort, the AUC of 1-, 2- and 3- year recurrence were 0.895 (95%CI: 0.831-0.959), 0.861(95%CI: 0.774-0.948) and 0.827(95%CI: 0.721-0.934), respectively, indicating that the model had a high predictive performance. 【Conclusion】 We successfully constructed a competing risk model to predict the risk of 1-, 2- and 3-year recurrence for NMIBC patients. It may help clinicians to improve the postoperative management of patients.
9.Metabolic Disease Management Guideline for National Metabolic Management Center(2nd edition)
Weiqing WANG ; Yufan WANG ; Guixia WANG ; Guang NING ; Dalong ZHU ; Ping LIU ; Libin LIU ; Jianmin LIU ; Zhaoli YAN ; Xulei TANG ; Bangqun JI ; Sunjie YAN ; Heng SU ; Jianling DU ; Sheli LI ; Li LI ; Shengli WU ; Jinsong KUANG ; Yubo SHA ; Ping ZHANG ; Yifei ZHANG ; Lei CHEN ; Zunhai ZHOU ; Chao ZHENG ; Qidong ZHENG ; Zhongyan SHAN ; Dong ZHAO ; Zhigang ZHAO ; Ling HU ; Tingyu KE ; Yu SHI ; Yingfen QIN ; Mingjun GU ; Xuejiang GU ; Fengmei XU ; Zuhua GAO ; Qijuan DONG ; Yi SHU ; Yuancheng DAI
Chinese Journal of Endocrinology and Metabolism 2023;39(6):538-554
The latest epidemiological data suggests that the situation of adult diabetes in China is severe, and metabolic diseases have become significant chronic illnesses that have a serious impact on public health and social development. After more than six years of practice, the National Metabolic Management Center(MMC) has developed distinctive approaches to manage metabolic patients and has achieved a series of positive outcomes, continuously advancing the standardized diagnosis and treatment model. In order to further improve the efficiency, based on the first edition, the second edition guideline was composed by incorporating experience of the past six years in conjunction with the latest international and domestic guidelines.
10.Analysis of pathogen distribution and influencing factors for pulmonary infection after radical resection of esophageal cancer
Fangfang GUO ; Xiaoxia ZHANG ; Changqing YANG ; Ning ZHOU ; Jinshuai LIU ; Qidong LI
Chinese Journal of Digestive Surgery 2023;22(S1):7-12
Objective:To investigate the pathogen distribution and influencing factors for pulmonary infection after radical resection of esophageal cancer.Methods:The retrospective case-control study was conducted. The clinical data of 555 patients who underwent radical resection of esophageal cancer in Heping Hospital Affiliated to Changzhi Medical College from January 2021 to December 2022 were collected. There were 344 males and 211 females, aged (64±8)years. Obser-vation indicators: (1) incidence of postoperative pulmonary infection and pathogen distribution; (2) analysis of influencing factors for postoperative pulmonary infection. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the t test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. The comparisons of ordinal data were analyzed using the nonparametric test. Univariate analysis was performed using the corresponding statistical methods based on data type. Multivariate analysis was performed using the Logistic stepwise regre-ssion model advance method. Results:(1) Incidence of postoperative pulmonary infection and pathogen distribution. Among 555 patients, 91 cases had postoperative pulmonary infection, with the incidence as 16.40%(91/555). In 91 patients with postoperative pulmonary infection, 59 strains of bacteria were isolated and cultured. There were 53 strains of gram-negative bacteria, 3 strains of gram-positive bacteria and 3 strains of fungi, including 20 multidrug-resistant bacteria. Among the 53 strains of gram-negative bacteria, there were 18 strains of Acinetobacter baumannii (12 strains were multidrug resistant), 18 strains of Klebsiella pneumoniae (3 strains were multidrug resistant), 6 strains of Pseudomonas aeruginosa (2 strains were multidrug resistant), 2 strains of Escherichia coli, 2 strains of Enterobacter cloacae, and 2 strains of Haemophilus influenzae (2 strains of Escherichia coli and 1 strain of Enterobacter cloacae were multidrug resistant strains), 1 strain of Serratia marcescens, 1 strain of Citrobacter keri, 1 strain of Corynebacterium striatum, 1 strain of Proteus mirabilis and 1 strain of Klebsiella acidogenes. Among the 3 strains of Gram-positive bacteria, there were 2 strains of Staphylococcus aureus and 1 strain of Streptococcus pneumoniae. All the three strains of fungi were Candida albicans. Among the 18 strains of Acinetobacter baumannii, there were 12, 12, 11, 9, 8, 6 and 5 strains resistant to imipenem, ceftriaxone, ceftazidme, cefoperazone or sulbactam, ciprofloxacin, amicacin and levofloxacin, respectively. The above indexes of 18 strains of Klebsiella pneumoniae were 0, 1, 1, 1, 2, 0 and 2, respectively. (2) Analysis of influencing factors for postoperative pulmonary infection. Results of multivariate analysis showed that tumor pathological staging as stage Ⅱ and Ⅲ, duration of preoperative hospital stay ≥6 days, operation time ≥240 minutes, mode of operation as thoracotomy, type of antibiotics used in peri-operative period ≥3, and postoperative antibiotic use time ≥5 days were independent risk factors for postoperative pulmonary infection ( P<0.05). Conclusions:The main pathogenic bacteria of pulmonary infection after radical resection of esophageal cancer are Acinetobacter baumannii and Klebsiella pneumoniae. Tumor pathological staging as stage Ⅱ and Ⅲ, duration of preoperative hospital stay ≥6 days, operation time ≥240 minutes, mode of operation as thoracotomy, type of antibiotics used in perioperative period ≥3, and postoperative antibiotic use time ≥5 days are independent risk factors for pulmonary infection in patients with esophageal cancer after radical surgery.


Result Analysis
Print
Save
E-mail