Objectives To investigate the risk factors of acute renal injury (acute kidney injury) in patients with acute left heart failure.Methods Clinical data of 188 patients with acute left heart failure who were admitted to our hospital were retrospectively analyzed.Logistic regression analysis was used to assess the risk factors for AKI.Results Among 188 patients with acute left heart failure,incidence of acute kidney injury was 33.51％.Univariate and Multivariable logistic regression analyses showed that the independent predictors of acute kidney injury were lower baseline eGFR (OR=4.294,P ＜ 0.001) and anemia (OR=3.573,P=0.006).Conclusions The incidence of acute left heart failure complicated with AKI was high.Basic state of renal function and anemia were the independent risk factors for AKI.

Since the biological characteristics of esophageal gastric junction (EGJ) cancer are different from those of gastric cancer and esophageal cancer, the choice of initial treatment is particularly important. This article introduces a case of locally advanced EGJ can-cer with single metastasis factor treated with preoperative radiochemotherapy in the Beijing Cancer Hospital. Through the multidisci-plinary team, we aim to achieve a better prognosis for this patient and propose new treatment practices for EGJ cancer.

Objective To investigate the anti-fatigue activity of fermented grain-containing blueberry anthocyanins ( LANHE,LH) in mice.Methods Experiments were conducted in two phases .In the first phase , forty mice were randomly divided into four groups:control group(distilled water,dw) and three LH administration groups (8.75,17.5 and 35.08 ml/kg body mass).In the second phase, mice were randomly divided into two groups:high-dose LH group (35.08 ml/kg body mass) and control group (dw 35.08 ml/kg body mass).After four weeks, a forced swimming test was performed and the biochemical parameters related to fatigue were examined .Results and Conclusion The administration groups showed a significant increase of swimming time to exhaustion compared with the control group , especially the high-dose group ( P<0.001).There was no significant change in the blood lactate between the two groups , but at 20 min after swimming, the lactic acid(LA) contents of the high-dose group were lower than in the control group (P>0.05).LH could significantly increase the liver glycogen contents and decrease the serum contents (P<0.05).These data indicate that LH has anti-fatigue activity and can elevate the exercise tolerance in mice .

Objective:To investigate the efficacy, safety, and overall survival of advanced upper gastric cancer patients who received preoperative chemoradiation therapy. Methods:A total of 62 patients who received preoperative chemotherapy or chemoradiation therapy in the Department of Gastrointestinal Surgery of Beijing Cancer Hospital&Institute were retrospectively observed to determine the efficacy and safety and to perform survival analysis of preoperative chemoradiation therapy. Results:Results of the postoperative pathology showed that the number of patients with T4 and N3 stages was significantly lower in the preoperative chemoradiation therapy group than in the preoperative chemotherapy group (P<0.05). In addition, the differences between the two groups in terms of safety and toxicity were not significant (P≥0.05). Analysis also showed that the differences between the two groups in terms of survival were not significant (P≥0.05). Conclusion:Patients with advanced upper gastric cancer can gain a potential survival advantage from preoperative chemoradiation therapy. Compared with preoperative chemotherapy, preoperative chemoradiation therapy was performed without increased risk of toxicity and insecurity. Preoperative chemoradiation therapy can also improve the local control ratio, especial y the control ratio of lymphatic metastasis. However, the final results of survival analysis depend on long-term follow-up of patients.

Objective To explore the computed tomography (CT) features of gastric cancer invasion to the pancreas and significance in the assessment of resectability of primary lesions.Methods The retrospective cohort study was conducted.The clinical data of 31 gastric cancer patients who were admitted to the Peking University Cancer Hospital between February 2011 and August 2016 were collected.Of 31 patients receiving CT examinations,11 who were diagnosed with suspected pancreas invasion by preoperative CT examinations but operation confirmed no invasion were allocated into the pancreas negative (PN) group,11 who were confirmed as pancreas invasion and under vent radical gastrectomy of gastric cancer combined with pancreas resection were allocated into the pancreas invasion (PI) group,and 9 who were confirmed as pancreas invasion and had unresectable primary lesions were allocated into the pancreas invasion non-resected (PI-NR) group.Observation indicators:(1) morphologic type of contact surface between gastric cancer and pancreas;(2) comparison of CT findings among the 3 groups:primary lesion location,tunor thickness,Borrmann type,serosa pattern of gastric cancer,judging obvious region invaded by gastric cancer,contact or invasion site with pancreas,contact length between gastric cancer and pancreas,pattern,clarity and CT values of contact surface or peripancreas invaded and normal peripancreas;(3) treatment or follow-up situations.All the patients underwent radical resection and palliative resection for gastric cancer or non-operation according to results of exploration.Telephone interview was performed to detect the survival of patients up to February 2017.Measurement data with skewed distribution were described as M (Qn),and comparisons among groups were done by the Kruskal-Wallis test.Comparison of count data were done by the Fisher exact probability.Results (1) Morphologic type of contact surface between gastric cancer and pancreas:there were 4 types according to results of CT examination.Type Ⅰ.pancreas contacted with gastric cancer and there was no change in the morphology and radian of contact surface.Type Ⅱ:pancreas contacted with gastric cancer and radian of contact surface became flattened or shallow depression.Type Ⅲ:contact surface showed a inserted sign or obvious depression.Type Ⅳ:pancreas didn't contact with gastric cancer and there was increased density in fat space between pancreas and gastric cancer,with a smudge sign or strip-and sheet-like opacity.Of 31 patients,type Ⅰ,Ⅱ,Ⅲ and Ⅳ were detected in 5,10,4 and 12 patients,respectively.(2) Comparison of CT findings among the 3 groups:nodular protrusion,spiculation and strip shape,clounding patch opacity of serosa panern of gastric cancer were detected in 1,6,4 patients in the PN group and 5,4,2 patients in the PⅠ group and 0,2,7 patients in the PI-NR group,respectively,with a statistically significant difference (X2=10.054,P＜0.05).Two,8 and 8 patients in the PN,PI and PI-NR groups had obvious tumor invasion located at a adjacent region between stomach and pancreas,with a statistically significant difference (X2 =11.259,P＜0.05).Contact or invasion site with pancreas located at head,body and tail of pancreas was detected in 6,5,0 patients in the PN group and 1,7,3 patients in the PI group and 5,4,0 patients in the PI-NR group,respectively,with a statistically significant difference (X2=8.390,P＜0.05).Type Ⅰ,Ⅱ,Ⅲ and Ⅳ of contact surface between gastric cancer and pancreas were detected in 5,6,0,0 patients in the PN group and 0,4,4,3 patients in the PI group and 0,0,0,9 patients in the PI-NR group,respectively,with a statistically significant difference (X2=29.291,P＜0.05).Number of patients with clear and ambiguous contact surface was 10,1 patients in the PN group and 0,11 patients in the PI group and 0,9 patients in the PI-NR group,respectively,with a statistically significant difference (X2 =26.227,P＜ 0.05).CT values of contact surface or peripancreas invaded were-46 HU (-57 HU,-20 HU) in the PN group and-34 HU (-41 HU,-25 HU) in the PI group and-10 HU (-15 HU,-10 HU) in the PI-NR group,respectively,with a statistically significant difference (Z=15.306,P＜0.05).CT values of normal peripancreas were-87 HU (-96 HU,-76 HU) in the PN group and-88HU (-70 HU,-1 HU) in the PI group and-83 HU (-98 HU,-74 HU) in the PI-NR group,respectively,with statistically significant differences in CT values between contact surface or peripancreas invaded and normal peripancreas among the 3 groups (Z=12.581,13.780,7.793,P＜0.05).(3) Treatment or followup situations:of 31 patients,22 underwent radical gastrectomy and 9 underwent simplex exploration or short surgery.All the 31 patients were followed up for 6.0-71.0 months,with a median time of 13.5 months.Postoperative 1-and 2-year survival rates were 82.6％ and 77.1％.Conclusions There are significant differences in pancreatic invasion and resectability between CT features of contact surface of gastric cancer and pancreas and tumor classification.CT features include that pancreas contacts with gastric cancer in the PN group,radian of contact surface becomes flattened and with a inserted sign in the PI group,and there are increased density in fat space between pancreas and gastric cancer and a smudge sign or strip-and sheet-like opacity in the PI-NR group.

Objective To investigate the multi-detector computed tomography (MDCT) evaluating the clinical staging of adenocarcinoma of the esophagogastric junction (AEG) after neoadjuvant chemotherapy.Methods The retrospective cross-sectional study conducted.The clinicopathological data of 46 AEG patients who were admitted to the Peking University Cancer Hospital between January 2016 and April 2018 were collected.All patients underwent MDCT before and after neoadjuvant chemotherapy and at preoperative 2 weeks,the distance between tumor center and boundary of esophagogastric junction (EGJ) was judged through coronal measured values and axial formula method.Patients underwent radical resection of gastric cancer + D2 lymph node dissection after neoadjuvant chemotherapy,pathologists reviewed the distance between center of AEG and boundary of EGJ,T staging (ycT) and N staging (ycN) of clinical staging,T staging (ypT) and N staging (ypN) of pathological staging after neoadjuvant chemotherapy were determined according to TNM staging of American Joint Committee on Cancer (AJCC) (8th edition),and tumor regression grading (TRG) was determined according to the criterion established by National Comprehensive Cancer Network.Observation indicators:(1) CT examination after neoadjuvant chemotherapy;(2) clinical staging after neoadjuvant chemotherapy;(3) postoperative pathological examination;(4) postoperative pathological staging;(5) accuracy of clinical staging after neoadjuvant chemotherapy;(6)relationship between imaging changes of CT examination and pathological reactions.Count data were described as absolute number or percentage,and comparisons among groups were analyzed by the chi-square test.Comparisons of ordinal data were analyzed by the non-parametric test.Results (1) CT examination after neoadjuvant chemotherapy:5 of 46 AEG patients,coronal images of CT showed whole tumor and boundary of EGJ,axial images of CT showed EGJ wall thickening,heterogeneous enhancement in all layers of lesions,and unsmooth serosal surface;the distance between tumor center and boundary of EGJ is less than 2 cm by direct measurement,5 patients were confirmed as esophageal cancer staging.For 41 patients,the same coronal image of CT cannot showed whole tumor and boundary of EGJ,axial images of CT showed EGJ wall thickening,heterogeneous enhancement in all layers of lesions,and irregular-shaped serosal surface;27 patients whose calculated values were negative based on formula method used esophageal cancer staging,and 14 patients whose calculated values were positive used gastric staging.(2) Clinical staging after neoadjuvant chemotherapy:among 46 AEG patients,ycT staging:staging ycT1,ycT2,ycT3,ycT4a and ycT4b were respectively detected in 1,6,31,6 and 2 patients;ycN staging:staging ycN0,ycN1,ycN2 and ycN3a were respectively detected in 5,14,23 and 4 patients.(3) Postoperative pathological examination:of 46 patients,38,3,3 and 2 were respectively confirmed as adenocarcinoma,adenocarcinoma with signet-ring cell carcinoma,adenocarcinoma with neuroendocrine carcinoma and adenocarcinoma with squamous carcinoma.Of 46 patients,the distance between tumor center and boundary of EGJ can be observed in 14 patients by gastric cancer staging and 32 patients by esophageal cancer staging.(4) Postoperative pathological staging:ypT staging:1,3,5,29,7 and 1 patients were respectively detected in staging ypT0,ypT1,ypT2,ypT3,ypT4a and ypT4b;ypN staging:17,4,15,9 and 1 patients were respectively detected in staging ypN0,ypN1,ypN2,ypN3a and ypN3b.One,3,16 and 26 patients were confirmed as staging TRG 0,TRG 1,TRG 2 and TRG 3,including 20 patients tumor regression and 26 patients without tumor regression.(5) Accuracy of clinical staging after neoadjuvant chemotherapy:the accuracies of ycT staging and ycN staging were 78.3％ (36/46) and 54.3％ (25/46).(6) Relationship between imaging changes of CT examination and pathological reactions:of 46 patients,33 and 13 had respectively reduced and stable gastric wall thickness of primary lesion.Among 20 patients with tumor regression,17 and 3 had respectively reduced and stable gastric wall thickness of primary lesion;of 26 patients without tumor regression,reduced and stable gastric wall thickness of primary lesion were respectively in 16 and 10 patients,with no statistically significant difference (x2 =3.069,P＞0.05).Of 46 patients,31,14 and 1 had respectively reduced,stable and increased sum of minor diameters of suspicious celiac lymph nodes.The reduced,stable and increased sum of minor diameters of suspicious celiac lymph nodes were detected in 16,4,0 of 20 patients with tumor regression and 15,10,1 of 26 patients without tumor regression,respectively,with no statistically significant difference (Z =-1.629,P＞ 0.05).The changes of gastric wall thickness of primary lesion and sum of minor diameters of celiac lymph nodes before operation were not consistent to that after operation in 3 patients.CT examination showed gastric wall thickness of primary lesion reduced after chemotherapy,and sum of minor diameters of celiac lymph nodes didn't change;pathological staging and clinical staging were respectively in staging ypN0 and ycN1.Conclusion According to the TNM staging of AJCC (Sth edition),the distance between tumor center and boundary of EGJ is judged through coronal measured values and axial formula method and therefore determining to select staging system of esophageal cancer or gastric cancer,meanwhile,rectifying over T3 staging of Siewert Ⅱ gastric cancer and increasing overall accuracy of clinical staging.

Objective To investigate the effects of alveolar macrophage phagocytosis on prognosis in patients with acute respiratory distress syndrome (ARDS) caused by abdominal infection. Methods ARDS patients caused by severe intra-abdominal infection admitted to intensive care unit (ICU) of Tianjin Fourth Central Hospital, Tianjin Nankai Hospital, Tianjin First Central Hospital and Tianjin Fifth Central Hospital from June 2016 to March 2018 were enrolled. The gender, age, acute physiology and chronic health evaluationⅡ(APACHEⅡ) within 24 hours of admission, neutral red phagocytosis and alkaline phosphatase activity of macrophages in bronchoalveolar lavage fluid, the length of ICU stay, total hospitalization time, hospitalization expenses, and prognosis were recorded. According to the prognosis, the patients were divided into death group and survival group, and the parameters were compared between the two groups. Pearson test was used to analyze the correlation between neutral red phagocytosis function of macrophages and alkaline phosphatase activity and other indicators. The prognosis was analyzed by binary Logistic regression combined with neutral red phagocytosis and alkaline phosphatase activity in patients, and the predictive value of both subjects on prognosis was analyzed by the receiver operating characteristic (ROC) curve. Results Twenty patients were enrolled in the study, with 8 in the death group and 12 in the survival group. Compared with the survival group, the death group was older (years old: 58.50±14.86 vs. 46.67±13.40), APACHEⅡ score was higher (21.50±3.93 vs. 13.58±4.12), neutral red phagocytosis ability and alkaline phosphatase activity of alveolar macrophages were significantly decreased (A value:0.265±0.050 vs. 0.338±0.016; μmol/L: 12.06±1.24 vs. 17.96±3.90), and the length of ICU stay was significantly longer (days: 22.00±14.59 vs. 11.50±3.17), hospitalization cost was significantly increased (10 thousand Yuan:24.17±11.02 vs. 13.44±3.53), the total hospitalization time was shorter (days: 25.25±15.01 vs. 35.67±8.58), and the difference was statistically significant (all P < 0.05). There was no significant difference in gender between the survival group and the death group [male (case): 8 vs. 6, P > 0.05]. The neutral red phagocytosis ability of alveolar macrophages in ARDS patients caused by abdominal infection was negatively correlated with age, APACHEⅡ score and the length of ICU stay (r value was -0.328, -0.572, -0.809, respectively, all P < 0.05); alkaline phosphatase activity was negatively correlated with age, APACHEⅡ score, the length of ICU stay and hospitalization expenses (r value was -0.334, -0.583,-0.470, -0.517, respectively, all P < 0.05). Binary Logistic regression analysis showed that neutral red phagocytosis [odds ratio (OR) = 0.596, 95% confidence interval (95%CI) = 0.212-0.997] and alkaline phosphatase activity (OR = 0.573, 95%CI = 0.339-0.968) were the influencing factors of prognosis (both P < 0.05). ROC curve analysis showed that the AUC of neutral red phagocytosis ability for prognosis of ARDS patients caused by abdominal infection was 0.948, and the sensitivity and specificity were 91.7% and 87.5% when the off-cut value was 0.317. The AUC of alkaline phosphatase for the prognosis of ARDS patients caused by abdominal infection was 0.813; when the cut-off value was 19.72 μmol/L, the sensitivity was 75.0%, and the specificity was 87.5%. Conclusion The alveolar macrophage phagocytosis dysfunction in ARDS patients caused by severe abdominal infection was not only related to the severity of the disease, but also increased the medical burden of patients, and significantly affected the mortality of such patients.

Objective:To explore the postprandial plasma low-density lipoprotein cholesterol (LDL-C) changes by various detection methods.Methods:A total of 85 subjects admitted to the Second Xiangya Hospital of Central South University from November 2017 to May 2019 were included. Serum samples were collected from fasting and the 2 nd hour and the 4 th hour after breakfast. Serum lipid levels were measured with enzymatic assays and nuclear magnetic resonance spectroscopy (NMRS), and proprotein invertase subtilisin/kexin type 9 (PCSK9) levels were measured with enzyme-linked immunosorbent assays. The differences of blood lipid components at different time points were compared by Friedman two-way rank analysis of variance and Wilcoxon signed rank test, and the correlation between PCSK9 level and lipoprotein particles was analyzed by Spearman correlation. Results:Measured by enzymatic assays, compared with the fasting state, LDL-C decreased at the 2 nd hour and the 4 th hour after the meal (2.58[2.09, 3.12], 2.47[1.92, 3.02], 2.37[1.82, 2.80] mmol/L, P<0.001). Measured by NMRS, the concentration of LDL particles (1 086[830, 1 239], 1 083[848, 1 213], 1 061[814, 1 213] nmol/L, P=0.417) did not change significantly, and cholesterol in LDL particles were 2.13 (1.56, 2.54), 2.16 (1.68, 2.50), 2.06 (1.58, 2.50) mmol/L, respectively ( P=0.047)，and postprandial cholesterol in LDL particles in the 2 nd hour and in the 4 th hour did not change significantly compared with fasting ( P>0.05). while the concentration of large LDL particles (185.2[150.6,221.6], 173.0[144.8,220.3], 178.1[144.0,233.6] nmol/L, P=0.001), and the cholesterol level in large LDL particles (0.49[0.39, 0.57], 0.47[0.38, 0.57], 0.46[0.37, 0.58]mmol/L, P<0.001) decreased after the meal. The PCSK9 level also decreased significantly after the meal (299[233, 397], 257[208, 342], 251[215, 340] ng/ml, P<0.001). There was an independent positive correlation between the decrease of PCSK9 levels and the increase of remnant cholesterol detected by MNRS after the meal ( r=0.232, P=0.035). Conclusions:The postprandial LDL-C level measured by NMRS and enzymatic assays is not consistent. The decrease of LDL-C measured by enzymatic assays is not caused by the clearance of LDL particles, but by the redistribution of cholesterol in each LDL subfraction.

Objective To evaluate the value of multi?slice CT?based tumor predominant feeding artery sign in the localization diagnosis of exophytic tumors in the pancreaticogastric space. Methods CT images of 34 patients with pathologically proven exophytic tumors located in the pancreaticogastric space including 20 gastric gastrointestinal stromal tumors (GIST) and 14 pancreatic tumors, 7 patients of neuroendocrine neoplasms (NEN) and 7 patients of solid pseudopapillary neoplasms (SPN) were retrospectively analyzed. Two radiologists identified the tumor feeding arteries of the tumors and made the localization diagnoses. The inter?observer agreement was evaluated by Kappa coefficient. Chi?square test or Fisher exact test was used to compare the visualization of tumor predominant feeding artery sign in the two groups. Results The tumor feeding arteries were identified in 19 of 20 gastric GISTs and 13 of 14 pancreatic tumors. The two observers had a good agreement on the origins of the tumor feeding arteries (Kappa coefficient: 0.681). There was statistically significant difference in the origins of the tumor feeding arteries between the two groups (χ2=23.86,P<0.01). The blood supplies of most GISTs originated from gastric arteries, while those of most pancreatic tumors originated from the pancreatic branch of splenic artery. The tumor predominant feeding artery sign was identified in 17 gastric GISTs (17/20, 85.0%) and 11 pancreatic tumors (11/14, 78.6%). There was no statistically significant difference in the positive rate of the sign between the two groups (P=1.000). For all tumors enrolled, the sensitivities, specificities, accuracies, positive predictive values, and negative predictive values of the sign for the localization diagnosis of gastric GISTs and pancreatic tumors were 85.0% (17/20), 92.9% (13/14), 88.2% (30/34), 94.4% (17/18), 81.3% (13/16) and 71.4% (10/14), 100.0% (20/20), 88.2% (30/34), 100.0% (10/10), 83.3% (20/24), respectively. Conclusion The tumor predominant feeding artery sign on multi?slice CT can assist in the localization diagnosis of gastric and pancreatic exophytic tumors in the pancreaticogastric space.

Objective: To study the correlation of lifestyle characteristics with thyroid nodules in a population-based sample of centenarians in Hainan. Methods: The study was based on China Hainan Centenarian Cohort Study (CHCCS) conducted in 18 cities and counties in Hainan province from 2014 to 2016. A group of multidisciplinary team interviewed and examined local centenarians with structured questionnaires and ultrasonography procedures. A total of 918 centenarians were analyzed after excluding those who refused ultrasonographic examinations or had relevant missing data. Thyroids of centenarians were examined by 3-year experienced sonographer, details on lifestyle characteristics and dietary habits were collected by standard procedure. Results: Of the 918 centenarians, 683 (74.4%) had thyroid nodules under the ultrasonography procedures. The prevalence of thyroid nodules in different group of areca nut consumption varied significantly (P<0.05). In multivariate logistic regression model, the results showed female and areca nut intake were independently associated with thyroid nodules in centenarians (P<0.05). Conclusions The modifiable variables including areca nut intake as well as non-modifiable such as gender are independent determinants of thyroid nodules in centenarians. Further studies are warranted to explore and verify these associations in populations with different ranges of age.