Objective: To study the relationships between the expressions of E-cadherin and ki-67 in the tissues of heatocellular carcinoma(HCC)and the prognosis of HCC patients after hepatectomy as well as their clinical pathology. Methods: We examine the expressions of E-cadherin and ki-67 in 255 HCC tissues by tissue microarray and PV-6000 two-step method of immunohistochemistry and analyze the correlations between their expressions and clinical pathological data, 1-year recurrent rate and overall survival time after hepatectomy. Results: The expression of E-cadherin correlated with the tumor size and the 1-year recurrent rate of positive group was higher than that of the negative group. The expression of ki-67 correlated with vascular invasion and differentiation of the tumor, the positive group showed a higher 1-year recurrent rate and a shorter overall survival time. Multivariate Cox regression analysis indicated that the expression of ki-67 was an independent risky factor. Conclusions: The negative expression of E-cadherin and the positive expression of ki-67 predict a higher recurrent rate of early stage. The expression of ki-67 is an independent risky factor which can be used to evaluate the prognosis of patients with HCC after hepatectomy.

AIM:To study the effect of Exendin-4 on the glucose tolerance and serum glucose level in normal animals. METHODS: The fasting blood glucose concentration was tested at 0,1,2,3,4 h and 2,4 week after the first administration of Exendin-4 (0.1, 0.3, 0.9 g/kg, 4 weeks, qd) in Wistar rats ,taking insulin as positive control. Before intragastric administration 2.5 g/kg glucose, Exendin-4 (0.2, 0.6, 1.8 g/kg) were subcutaneously injected, then the fasting blood glucose concentration was tested at 0.5, 1, 2 h after the glucose loading. After hypodermic administration of Exendin-4 (0.2, 0.6, 1.8 g/kg), half of the mice were subcutaneously administrated 2.5 g/kg glucose 15 min later, and the insulin was tested at the end of the experiment. RESULTS:Exendin-4 could not significantly change the fasting blood glucose concentration at different times. The fasting blood glucose concentration was significantly decreased after glucose loading by administration Exendin-4. Exendin-4 could increase the serum insulin concentration remarkably after glucose loading and could not change much without glucose loading. CONCLUSION: The results suggest that the blood glucose regulation of Exendin-4 was related to the concentration of glucose.

Background and purpose:As a tumor suppressor gene, ribosomal S6 kinase 4 (RSK4) plays important roles in inhibiting cell proliferation, migration and inducing cell apoptosis. However, the proteins interacting with RSK4 are still unknown. This study aimed to screen proteins interacting with RSK4 in breast cancer cell line MDA-MB-231 by lfag-tag affnity puriifcation and LC-MS/MS (liquid chromatography/mass spectrometry).Methods:The pcDNA3.1/EGFP-RSK4-Flag eukaryotic expression vector was constructed by inserting full lengthRSK4 gene into vector pcDNA3.1/EGFP-Flag. And then the recombinant plasmids were transferred into MDA-MB-231 cells. Real-timelfuorescent quantitative polymerase chain reaction (RTFQ-PCR) and Western blot were used to detect the expression of RSK4 in MDA-MB-231 cells. Affnity puriifcation and LC-MS/MS were applied to screen proteins interacting with RSK4, and the related action mechanism of RSK4 with its interacted proteins was detected based on bioinformatics gene ontology (GO) and ingenuity pathway analysis (IPA).Results:Twenty-four proteins, such as serine/threonine-pro-tein kinase 38 (STK38)/serine/threonine-protein kinase 38-like (STK38L), MOB kinase activator 2 (MOB2) and protein arginineN-methyltransferase 5 (PRMT5), were successfully identiifed by Flag-tag affnity puriifcation followed by LC-MS/MS analysis, which probably interacted with RSK4. Bioinformatics analysis of the identiifed proteins suggested the proteins interacting with RSK4 were involved in diverse biological pathways, such as apoptosis and cell migration. Conclusion:According to bioinformatics results of proteins interacting with RSK4 identiifed by affnity puriifcation and LC-MS/MS, biological networks of RSK4 are involved in apoptosis and migration in breast cancer cells.

0.05).Compared with control group,the GK activity of liver cell,the expression of PEPCK and the expression of GLUT4 in model group decreased signifi cantly(P

Objective:To analyze the effects of the primary location of colorectal cancer on the surgical outcome of liver metastases.Methods:A cross-sectional study was conducted on 178 patients with liver metastases from colorectal cancer admitted to Binzhou Central Hospital from January 2012 to January 2022. According to whether the patients had recurrence after surgery, they were divided into a recurrence group ( n = 88) and a control group ( n = 90). The general and clinical data were compared between the two groups. Logistic multivariate analysis of the factors with statistical significance was further performed to identify the risk factors of postoperative recurrence of liver metastases from colorectal cancer after surgery. The correlation between the primary location of colorectal cancer and each risk factor was analyzed. The recurrence of colorectal cancer was compared anong patients with different primary locations of colorectal cancer at 12 months after surgery. Results:Primary location at the right colon [55.68% (49/88), lymph node metastasis [92.05% (81/88)], D-dimer ≥ 180 μ g/L, albumin < 29 g/L, ineffective/no neoadjuvant chemotherapy [43.18% (33/38)], and high-risk clinical risk score [53.41% (47/88)] were risk factors for postoperative recurrence of liver metastases from colorectal cancer after surgery ( P = 0.024, 0.019, 0.001, 0.028, < 0.001, 0.001). The primary location of colorectal cancer was positively correlated with lymph node metastasis, D-dimer, and clinical risk score ( P = 0.043, 0.046, 0.030), and negatively correlated with albumin and the efficacy of neoadjuvant chemotherapy ( P = 0.004, 0.033). In 178 patients, the recurrence rate of liver metastases from colorectal cancer at 3 months [53.57% (15/70)], 6 months [55.17% (32/70)], and 12 months [55.68% (49/70)] was significantly higher in the right colon compared with the left colon [32.14% (9/40), 24.14% (14/40), 26.14% (23/40) and the rectum [14.29% (4/68), 20.69% (12/68), 18.18% (16/68)] ( χ2= 4.73, 7.85, 6.27, all P < 0.05). Conclusion:Right colon, lymph node metastasis, D-dimer, albumin, neoadjuvant chemotherapy efficacy, and clinical risk score are the risk factors for postoperative recurrence of liver metastases from colorectal cancer. Patients with the primary location at the right colon have a higher postoperative recurrence rate.

Objective: To explore the effects of group sports game intervention on social ability and quality of life of children with austism spectrum disorders (ASD),so as to provide reference for rehabilitation intervention of social and quality of life of children with ASD. Methods: From September 2021 to January 2022, 72 children with ASD aged 4-6 in the children s rehabilitation department of Xiangyang Central Hospital were selected to participate in the study, and were randomly divided into experimental group ( n =36) and control group ( n =36). The control group received routine rehabilitation training (including individual sports game training), and the experimental group replaced individual sports game training with group sports game training on the basis of routine rehabilitation.The course content mainly included three parts: warm up before class, group sports games and relaxation after class. The course combined social skills with sports games, and was carried out in a group form (divided into 12 groups with 3 people in each group), and was trained five times a week for 60 minutes, for a total of 12 weeks. The scores of Childhood Autism Rating Scale (CARS), Autism Treatment Evaluation Checklist (ATEC), Social Responsiveness Scale (SRS) and Pediatric Quality of Life Inventory Version 4.0 Generic Core Scales (PedsQL 4.0) were observed before and after treatment. t-test and χ 2 test were used for statistical analysis. Results: There was no significant difference in SRS scores between the experimental group and the control group before intervention ( t =-0.63, P >0.05). After the intervention, the total response rate in the experimental group was 83.33 %, higher than 41.67% in the control group χ 2=13.33, P <0.05),and the SRS scores decreased in the experimental group and control group ( t =17.75,8.71, P <0.05). The SRS scale score of the experimental group Social perception (17.67±4.12) , social cognition (30.33±4.99) , social communication (50.33±9.39) , social motivation (24.25±6.78) scores and total scores ( 152.67± 25.82) were lower than those of the control group(22.17±5.34，36.00±4.13，62.58±11.07，34.42±7.13，186.33±29.03)( t = -4.88，-2.03，-2.13，-3.58，-3.01， P ＜0.05).After the intervention, the scores of social function (53.33±18.01) and total score (283.83±51.83) on PedsQL 4.0 scale in experimental group were higher than those in control group(23.33±15.13，218.00±39.01) ( t =4.42，3.52， P ＜0.05). After the intervention, Autism Treatment Evaluation Scale (ATEC) scores of experimental groups(44.33±14.72) was lower than that in control group ( 59.33±16.95)( t =-2.32, P ＜0.05). Conclusion The intervention of group sports game has a significant effect on improving social ability and life quality of children with ASD.

OBJECTIVETo detect the expression of cytokines by acute promyelocytic leukemia (APL) cells before and after exposure to arsenic trioxide.

METHODSDiagnoses were performed according to the FAB cytological classification criteria and cytogenetic criteria. Bone marrow or blood samples from APL patients were collected in heparinized tubes, then primary APL cells were separated by traditional Ficoll-Hypaque density centrifugation and purified after adherence to plastic surfaces. IL-1(beta), IL-6, IL-8, TNF alpha and G-CSF levels in the leukemia cell culture supernatants were detected by ELISA. At the same time, nitro blue tetrazolium (NBT) reduction test was used to detect the differentiation of APL cells.

RESULTSAfter 96 hours exposure to arsenic trioxide, 10 - 6 mol/L in vitro or 10 mg/d in vivo, APL cells showed a significant increase of IL-1(beta) (P < 0.05) and G-CSF (P < 0.05) production, and a significant decrease of IL-6 (P < 0.05) and IL-8 (P < 0.05). However, there was no obvious variation of TNF alpha when compared with APL cells without exposure to arsenic trioxide. On the other hand, the proliferation ratio of APL cells in vitro was statistically correlated to the IL-1(beta) secretion ratio or G-CSF secretion ratio. The cell number ratio in patients with detectable IL-1(beta) or G-CSF was higher than that without detectable IL-1(beta) or G-CSF.

CONCLUSIONIL-1(beta) and G-CSF secretion may play an important role in the proliferation of APL cells after exposure to arsenic trioxide.

Arsenicals ; pharmacology ; Cells, Cultured ; Cytokines ; secretion ; Granulocyte Colony-Stimulating Factor ; secretion ; Humans ; Interleukin-1 ; secretion ; Interleukin-6 ; secretion ; Interleukin-8 ; secretion ; Leukemia, Promyelocytic, Acute ; metabolism ; Oxides ; pharmacology ; Tumor Necrosis Factor-alpha ; secretion

OBJECTIVETo analyze the clinical feature and constituent ratio of adult hip fractures in Southwest China.

METHODSThe data of adult inpatients and outpatients with hip fractures treated between January 2010 and December 2011 in 11 hospitals of the Southwest China were collected and analyzed. The data includes gender, age, age distribution and fracture pattern according to AO classification.

RESULTSThere were a total of 2,833 adult hip fractures, including 1,340 (47.30%) males and 1,493 (52.70%) females, with a male-to-female incidence ratio of 1: 1.11 and a mean age of (66±18) years. The highest frequency of hip fractures was seen in the 71 to 85 years age group (42.18%, 1,195/2,833). There were 844 fractures (29.79%) in the young and middle-aged group (16-<60 years) and 1 898 fractures (70.21%) in the geriatric group (≥60 years). Men had a higher rate than women (men: 577 fractures, 68.4%) in the young and middle-aged group, while women had a higher rate than men (women: 1,226 fractures, 61.64%) in the geriatric group, with a significant difference in the sex distribution between the two groups (χ2=214.001, P<0.01). The proportion of intertrochanteric fracture (type 31-A), femoral neck (type 31-B) and femoral head fracture (type 31-C) was 46.59%, 49.74% and 3.67% respectively. The highest frequency of the sub-type in each fracture type was type 31-A2, type 31-B2 and type 31-C2.

CONCLUSIONSWomen have a higher rate than men in Southwest China. Geriatric patients are more than the young and middle-aged patients. The femoral neck fractures, intertrochanteric fractures and femoral head fractures are in descending orders according to the proportion of the three different hip fractures.

Aged ; Aged, 80 and over ; China ; epidemiology ; Female ; Femoral Fractures ; Femoral Neck Fractures ; Femur ; Femur Head ; Femur Neck ; Hip Fractures ; epidemiology ; Humans ; Incidence ; Male ; Middle Aged

OBJECTIVE: To observe the change of the specificity of the microcirculatory blood perfusion at the area of "Feishu" (BL 13) in the rats of chronic obstructive pulmonary disease (COPD). METHODS: According to the random number table, 60 Wistar rats were divided into a 29 d model No. 1 group (C1 group), a 29 d normal control No.1 group (N1 group), a 89 d model No.2 group (C2 group) and a 89 d normal control No. 2 group (N2 group), 15 rats in each one. In the C1 and C2 groups, the smoking and intratracheal drops of endotoxin were used in combination to prepare COPD model. The rats were fed normally in the N1 and N2 groups. "Feishu" (BL 13), "Xinshu" (BL 15), the lateral site of "Feishu" (BL 13) and the lateral site of "Xinshu" (BL 15) were selected as the monitoring points. The pericam perfusion speckle imager (PeriCam PSI System) was adopted to monitor the microcirculatory perfusion unit (PU) at the monitoring points before and in 29 d and 89 d after modeling separately. RESULTS: Before modeling, the differences in PU were not significant at each monitoring point in comparison among the 4 groups and the differences were not significant among "Feishu" (BL 13) and "Xinshu" (BL 15) as well as their lateral sites (all >0.05). After modeling, PU was increased at each monitoring point in the C1 and C2 groups (all <0.05). PU in the C1 group was higher than the N1 group and that in the C2 group was lower than the N2 group, PU at each monitoring point in the C1 group were higher than the C2 group, indicating the significant differences (all <0.05). In the C1 and C2 groups, the specific change occurred, in which PU at "Feishu" (BL 13) was higher than its lateral site. But such specific change did not happen in the N1 and N2 groups. CONCLUSION PU at "Feishu" (BL 13) presents the specific change relevant with the sickness duration in the COPD rats.
Acupuncture Points ; Animals ; Microcirculation ; Pulmonary Disease, Chronic Obstructive ; Rats ; Rats, Wistar

OBJECTIVES: Cardiac hypertrophy and fibrosis are major pathological manifestations observed in left ventricular remodeling induced by angiotensin II (AngII). Low-intensity pulsed ultrasound (LIPUS) has been reported to ameliorate cardiac dysfunction and myocardial fibrosis in myocardial infarction (MI) through mechano-transduction and its downstream pathways. In this study, we aimed to investigate whether LIPUS could exert a protective effect by ameliorating AngII-induced cardiac hypertrophy and fibrosis and if so, to further elucidate the underlying molecular mechanisms. METHODS: We used AngII to mimic animal and cell culture models of cardiac hypertrophy and fibrosis. LIPUS irradiation was applied in vivo for 20 min every 2 d from one week before mini-pump implantation to four weeks after mini-pump implantation, and in vitro for 20 min on each of two occasions 6 h apart. Cardiac hypertrophy and fibrosis levels were then evaluated by echocardiographic, histopathological, and molecular biological methods. RESULTS: Our results showed that LIPUS could ameliorate left ventricular remodeling in vivo and cardiac fibrosis in vitro by reducing AngII-induced release of inflammatory cytokines, but the protective effects on cardiac hypertrophy were limited in vitro. Given that LIPUS increased the expression of caveolin-1 in response to mechanical stimulation, we inhibited caveolin-1 activity with pyrazolopyrimidine 2 (pp2) in vivo and in vitro. LIPUS-induced downregulation of inflammation was reversed and the anti-fibrotic effects of LIPUS were absent. CONCLUSIONS These results indicated that LIPUS could ameliorate AngII-induced cardiac fibrosis by alleviating inflammation via a caveolin-1-dependent pathway, providing new insights for the development of novel therapeutic apparatus in clinical practice.