Objective To investigate the protective effects of the scallop skirt glycosaminoglycan (SS-GAG) in vitro on the endothelial cell damaged by oxygen free radical and the mechanism of its anti-atherosclerotic effects. Methods The endothelial cells of human umbilical vein (HUVEC)were cultured in vitro, and the damage model of endothelial cells was established by oxygen free radicals . After the damage of HUVEC by Fenton reaction, the effects of SS-GAG on the proliferative activity of HUVEC were observed by the methods of MTT chroma-tometry ,the influence of SS-GAG on lactate dehydrogenase (LDH) release was studied by chromatometry and the effects of SS-GAG on secretion of endothelins and angiotensin Ⅱ were observed by the methods of radio-immunity. Results Compared with the control group, proliferation activity of damage group cell lowered obviously ,LDH release in culture media,and the excretion of endothelins and angiotensin Ⅱ in HUVEC rised obviously. In the groups pre-treated with SS-GAG, cell proliferation activity, the LDH release and the excretions of ET and Ang Ⅱ showed obvious differences compared with model group. Conclusion SS-GAG reduce the damage of endothelial cell caused by oxygen free radicals, restrain the secretion ofendothelins and angiotensin Ⅱ . These results indicate that SS-GAG has protective effects on the endothelial cells damaged by oxygen free redicals and the anti-atherosclerotic mechanism of SS-GAG was related to its protective effects on the endothelial cells.

Purpose To determine the effect of RNase MC2 purified from momordica charantia on cell growth of hepatocellular carcino-ma ( HCC) and its underlying mechanism. Methods MTT, colony formation and nude mice model were used to examine the activity of RNase MC2 in cell proliferation. Cell cycle analysis was done by flow cytometry. Autophagy induced by RNase MC2 treatment was observed via transmission electron microscope. Western blot was performed to detect the RNase MC2-mediated changes of proteins. Re-sults In vitro and in vivo data showed that RNase MC2 markedly inhibited HCC cell proliferation, arrested cells at G2/M phase by in-creasing expression of p53 and p21, induced autophagy via upregulating Beclin-1 and LC3-Ⅱ. Furthermore, combination of RNase MC2 and Sorafenib exerted enhanced lethal effect on HCC cells. Conclusion RNase MC2 manifests significant antitumor activities and enhances the killing effect of Sorafenib in HCC via inducing cell cycle arrest and autophagy.

OBJECTIVETo explore the feasibility of Chinese medical syndrome identification in patients with post-hepatitis cirrhosis (PHC) by soft independent modeling of class analogy (SIMCA).

METHODSAfter variants were normalized, SIMCA was used to analyze clinical symptoms, physical signs, and biological parameters in 268 PHC patients, and the obtained distance of SIMCA was used to identify the syndromes of PHC. Some incorrect reasons were then tested by Mann-Whitney test.

RESULTSThe recognition rates of 5 Chinese medical syndromes (Gan depression and Pi deficiency syndrome, Gan-Shen yin-deficiency syndrome, Pi-Shen yang-deficiency syndrome, inner accumulation of dampness-heat syndrome, and stasis-heat accumulation syndrome) were 72.9% in the nearest class, and 17.91% in the sub-near class, as well as the total recognition rate was 90.3%. The highest recognition rate (95.24%) presented in the recognition on Gan-Shen yin-deficiency syndrome. Among some vital symptom variants of nearest class, significant difference could be found between identified and un-identified syndromes (P < 0.05).

CONCLUSIONIdentification of Chinese medical syndromes by SIMCA has rather higher goodness-of-fit with clinical practice, to set up a SIMCA depended syndrome identifying system could offer a useful reference for Chinese medical syndrome identification.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Diagnosis, Differential ; Female ; Hepatitis ; complications ; diagnosis ; Humans ; Liver Cirrhosis ; diagnosis ; etiology ; Medicine, Chinese Traditional ; methods ; Middle Aged ; Models, Statistical ; Statistics, Nonparametric ; Yang Deficiency ; diagnosis ; Yin Deficiency ; diagnosis ; Young Adult

Objective:To investigate the effect of cyclin D1 (CCND1) negatively regulated by miRNA-541 (miR-541-5p) on the proliferation and migration of colon cancer cells as well as its related mechanism.Methods:Expression levels of miR-541-5p in colon cancer cell lines HT29, SW480, SW620, HCT116 and enterocyte line HIEC of the normal people as well as cancer tissues and pericarcinomatous normal tissues of 112 patients undergoing the colon cancer surgery from the First Affiliated Hospital of Hebei North University between April 2017 and March 2020 were detected by using quantitative real-time polymerase chain reaction(qRT-PCR). The potential target gene of miR-541-5p was predicted by using TargetScan, and was verified by using dual luciferase reporter gene assay, qRT-PCR and Western blot. Expression level of CCND1 was detected in colon cancer cell lines and tissues. Cells with the lowest expression level of miR-541-5p were divided into miR-NC group (the transfected control plasmid), miR-541-5p group (the transfected miR-541-5p mimics), miR-541-5p+CCND1 group (the co-transfected miR-541-5p mimics and CCND1). Effect of miR-541-5p and CCND1 on proliferation and migration ability of colon cancer cells was detected by using cell counting kit-8 (CCK8) and Transwell method. The xenograft model of colon cancer in nude mice was constructed to observe the effect of miR-541-5p on tumor growth.Results:The relative expression level of miR-541-5p in colon cancer tissues was lower than that in pericarcinomatous normal tissues (0.45±0.06 vs. 1.00±0.12, t = 43.385, P < 0.01). The relative expression level of miR-541-5p was 0.46±0.03, 0.67±0.04, 0.57±0.06, 0.17±0.02, 1.00±0.15, respectively in colon cancer cell lines HT29, SW480, SW620, HCT116 and enterocyte line HIEC of the normal people, and the difference was statistiacally significant ( F = 5.621, P < 0.01); the relative expression level of miR-541-5p in all colon cancer cell lines was lower than that in enterocyte line HIEC of the normal people. HCT116 cells were selected to make the subsequent experiments. The predicted results of TargetScan showed that 3'UTR of CCND1 might have sites complementary to those of miR-541-5p. Dual luciferase reporter gene assay showed that CCND1 was the target gene of miR-541-5p, and miR-541-5p negatively regulated the expression of CCND1. CCK-8 method showed that cell proliferation rate of HCT116 was (2.00±0.16)%, (0.89±0.08)%, (2.56±0.23)%, respectively in miR-NC group, miR-541-5p group, miR-541-5p+CCND1 group, and the difference was statistically significant ( F = 6.715, P < 0.01); among HCT116 cells with the overexpression of miR-541-5p, the transfected CCND1 chould reverse the inhibitory effect of miR-541-5p on cell proliferation. Transwell results showed that the overexpression of miR-541-5p inhibited the cell migration ability of HCT116, while the co-transfection of miR-541-5p mimics and CCND1 could reverse the inhibitory effect. In the colon cancer nude mice xenograft model, the tumor mass and size of nude mice in miR-541-5p group was decreased compared with that in the control group (all P < 0.05). Conclusions:miR-541-5p inhibits cell proliferation and migration of colon cancer cells via negatively regulating CCND1, and inhibits tumor growth in xenograft model of colon cancer in nude mice, thereby acting as a tumor suppressor in colon cancer.

Objective To observe the effect of the body weight support training (BWST) on walking ability of children with cerebral palsy (CP). Methods 50 children with CP were divided into the BWST group （n=30） and control group（n=20）. All cases were treated with physical therapy, but the BWST group were added with BWST. The scores of D and E dimensions of the Gross Motor Function Measure Scale (GMFM) were used to assess the walking ability before and after the treatment, respectively. Results The scores of D and E dimensions of GMFM improved in both groups after treatment (P<0.01), and that of the BWST group improved more than control group （P＜0.05）. Conclusion BWST can facilitate the recovery of the walking ability after cerebral palsy.

Objective To investigate the risk and value of the dissection of bursectomy in T2 gastric cancer. Methods A total of 86 T2 gastric cancer patients were divided into dissection of bursectomy group (46 cases) and non-dissection of bursectomy group (40 cases) according to the random number table method. The age, Borrman type, tumor location, degree of differentiation, vascular tumor thrombus, operation type, lymph nodes metastasis, number of dissected lymph nodes, tumor size, blood loss during operation, operation time and postoperative complications were observed. The patients were followed up for 1 year, and the local recurrence, metastasis and survive were compared between 2 groups. Results There were no statistical differences in age, Borrman type, tumor location, degree of differentiation, vascular tumor thrombus, operation type, lymph nodes metastasis, number of dissected lymph nodes, tumor size, blood loss during operation and postoperative complications (P>0.05). No metastasis was found in anterior layer of transverse colon and pancreatic capsule in 2 groups. The operation time in dissection of bursectomy group was significantly longer than that in non- dissection of bursectomy group: (169.13 ± 37.94) min vs. (147.45 ± 30.27) min, and there was statistical difference (P<0.05). The patients were followed up for 1 year, and there was no local recurrence in 2 groups. There was 1 case with liver metastasis in dissection of bursectomy group, and 1 case with bony metastasis in non- dissection of bursectomy group. There was no death in 2 groups. Conclusions The dissection of bursectomy in T2 gastric cancer could be abandoned, in order to reduce the operation time, blood loss during operation, and postoperative complications.

Objective To investigate the association of local factors with local recurrence (LR) and distant metastasis ( DM) in patients with esophageal squamous cell carcinoma ( ESCC) who do not experience clinical metastasis.Methods A total of 236 eligible ESCC patients were analyzed retrospectively, and the association of lesion length on esophagography, maximum tumor diameter, and tumor volume with survival and treatment failure pattern was analyzed.Kaplan-Meier test and Cox regression were used for survival analysis and to identify prognostic factors.Results The 1-, 3-, and 5-year overall survival rates, LR rates, and DM rates were 88.6%,52.4%,30.2%, 15.5%,35.6%,45.8%, and 9.0%,22.2%, 30.6%, respectively.The multivariate analysis showed that short-term treatment outcome and maximum tumor diameter were independent prognostic factors for overall survival rate ( P=0.000, 0.019); sex, maximum tumor diameter, irradiation method, and short-term treatment outcome were independent prognostic factors for LR (P=0.039,0.003,0.045,0.000);maximum tumor diameter was the independence factor for DM (P=0.035).In the patients receiving elective nodal irradiation and involved-field irradiation, the maximum tumor diameter was the prognostic factor for LR (P=0.008,0.001), and the lesion length on esophagography, maximum tumor diameter, and tumor volume were prognostic factors for DM (P=0.009, 0.023,0.014).Conclusions In ESCC patients without clinical metastasis, local factors are significantly associated with LR and DM, among which maximum tumor diameter is the most important factor.

Objective:To investigate the application status of the practice evidence of falls prevention in elderly inpatients in Chinese comprehensive tertiary hospitals.Methods:Using a self-designed questionnaire based on the practice evidence of falls prevention in elderly inpatients to investigate the application status of that in 81 Chinese comprehensive tertiary hospitals.Results:93.83% (76/81) of the investigated hospitals had a falls screen in the admission assessment of elderly inpatients, and 49.38% (40/81) of the surveyed hospitals used Morse Falls Scale to screen. At the same time, 62.96%(51/81) of the hospitals had falls assessment of elderly inpatients, while only 25.93%-40.74% of the hospitals included the fear of falls, urinary incontinence, footwear, as well as foot problems in the falls screen or assessment. In addition, the implementation rate of falls prevention was 12.35%-79.01% in the hospitals surveyed, and only 60.49% (49/81) of the hospitals had individualized falls prevention intervention. Furthermore, the falls prevention participation rate of primary nurses and doctors, as well as patients′ care was higher than 80.00%, but that of pharmacists, rehabilitation therapists and physiotherapists was only between 12.35% to 24.69%.Conclusions:Hospitals should take the characteristics of environment and elderly inpatients in the hospital into consideration to choose the risk factors which should be included in the falls screen/assessment, as well as select the appropriate screen/assessment tools. Meanwhile, hospitals should culture and encourage the right workers′ participation to build a multidisciplinary team for falls assessment and intervention to achieve the goal of falls and falls injuries prevention with the evidence.

Objective To determine the prognostic factors in patients with stage pT3N0M0 thoracic esophageal squamous cell carcinoma (TSCC) after esophagectomy, and to compare the effects of different treatment modalities on the prognosis of patients.Methods A retrospective analysis was conducted on 480 patients with stage pT3N0M0 TSCC from 2007 to 2010 to determine the prognostic factors in the patients, and to compare the effects of different treatment modalities on their prognosis.Survival rate was calculated using the Kaplan-Meier estimator, and multivariate analysis of prognostic factors was performed using the Cox model.Results Of the 439, 333, and 278 patients who completed the 1-, 3-, and 5-year follow-up, respectively, the 1-, 3-, and 5-year overall survival (OS) rates were 90.0%, 68.7%, and 57.9%(median 87 months, 95% confidence interval (CI=74.7-99.4), respectively, and the 1-, 3-, and 5-year disease-free survival (DFS) rates were 82.3%, 60.4%, and 52.3%(median 71.3 months, 95%CI=55.1-87.5), respectively.In order to account for the different constituent ratios of some clinical and pathological data between the three groups of patients, 55 patients in each group were matched using propensity score matching (PSM)(all P>0.05).It was found that the post-PSM 1-,3-, and 5-year OS and DFS were significantly different between patients who received surgery only, postoperative chemotherapy (POCT), and postoperative chemoradiotherapy/radiotherapy (POCRT/RT)(P=0.000 and 0.006,respectively).Multivariate Cox analysis showed that age, lesion location, and treatment modality were independent prognostic factors for OS and DFS (P=0.029,0.004,0.000 and P=0.009,0.003,0.002), and the length of lesion was also an independent prognostic factor for DFS (P=0.003).Conclusions Although the rate of post-operative treatment failure is still high among patients with stage pT3N0M0 TSCC, POCRT/PORT can improve the prognosis and the 5-year OS and DFS of these patients.However, further large-sample prospective studies will be required to confirm these findings.

Objective To investigate the failure model of patients with stage pN0 thoracic esophageal squamous cell carcinoma (TESCC) after surgery alone and to discuss the feasibility of postoperative radiotherapy.Methods A retrospective analysis was performed on 473 patients with TESCC who received surgery alone from January 2007 to December 2010.The feasibility of adjuvant radiotherapy for pN0 TESCC patients was investigated through the failure model of postoperative patients.Results Of all patients,there were 57 cases with chest-regional recurrence (12.1％),most of which occurred in the mediastinal lymph nodes(52 case).There were 42 (8.9％) patients were identified as distant metastasis (DM),of which 13 cases were found to have both local recurrence and DM,and the total failure rate was 20.9％.The chest-regional recurrence rate of upper TESCC was statistically significantly higher than middle and lower (x2 =7.469,P ＜ 0.05),but DM rate had no statistically significant difference (P ＞ 0.05).The chest-regional recurrence rate and DM rate of the advanced T stage were significantly higher than those of the early T stage(x2 =10.247,7.886,P ＜ 0.05).The result of univariate analysis showed that disease site,the degree of adhesion,postoperative stump were significant factors of chestregional recurrence rate (x2 =14.232,9.486,7.546,P ＜ 0.05).Gender,smoking and preoperative weight loss ≥5 kg significantly influenced DM (x2 =10.823,10.275,6.065,P ＜ 0.05).In addition,the T stage was the significant influence factor of chest-regional recurrence and DM(x2 =15.994,12.885,P ＜0.05).The result of multivariate analysis showed that T stage and postoperative stump were independent factors of chest-regional recurrence (P ＜ 0.05).Smoking was an independent factor of DM (P ＜ 0.05).Conclusions There was a high rate of chest-regional recurrence in patients with stage pN0 TESCC who received surgery alone.Postoperative radiotherapy was recommended for patients with upper TESCC,advanced T stage,severe local adhesion,positive margin in and postoperative stump.Male,smoking and preoperative weight loss≥5 kg were associated with higher DM rate.