Objective To evaluate the role of mangled extremity severity score(MESS)in res-ervation and amputation of crush lower limbs in earthquake. Methods There were 122 patients with crush lower limb injuries,with MESS≥8 points in 34 patients who were primarily amputated,M ESS 5-7points in 19 who were principally preserved and MESS＜5 points in 69 who were preserved by means of debridement,external fixators,plast splints and vaeuum sealing drainage technique.Results All pa-tients were survived.with amputation rate of 29.5%. Conclusion MESS is an important reference for evaluation of reservation and amputation of crush limb injuries caused by earthquake.

The expression of hypoxia inducible factor-1 alpha (HIF-1alpha) and its relationship to apoptosis in tissues around cerebral bleeding loci was studied. The expression of HIF-1alpha and apoptosis in 37 samples of tissues around cerebral bleeding loci and 9 samples of normal cerebral tissues was assessed by immunohistochemical straining and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling methods. In 37 tissue samples around cerebral bleeding loci, the positive rate of the HIF-1alpha expression was 40.6%. Especially in the patients with amount of bleeding >60 ml, the positive rate (88.9%) of the HIF-1alpha expression was significantly higher than those with the amount of bleeding ranging from 30-45 ml or 45-60 ml (P<0.05). The expression of HIF-1alpha was increased as the amount of bleeding and operative time increased (P<0.05). There existed a positive correlation between HIF-1alpha labeling index and apoptosis index (n=12, r=0.56, P<0.01). These results suggested that the expression of HIF-1alpha was closely related with the time of hemorrhage and the amount of bleeding, and could induce the apoptosis of neurons.
Adult ; Aged ; Apoptosis ; physiology ; Brain ; metabolism ; pathology ; Cerebral Hemorrhage ; metabolism ; pathology ; DNA-Binding Proteins ; biosynthesis ; genetics ; Female ; Humans ; Hypoxia-Inducible Factor 1 ; Hypoxia-Inducible Factor 1, alpha Subunit ; Immunohistochemistry ; Male ; Middle Aged ; Neurons ; pathology ; Nuclear Proteins ; biosynthesis ; genetics ; Time Factors ; Transcription Factors ; biosynthesis ; genetics

Objective: To investigate the expression of long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in plasma of patients with oral squamous cell carcinoma (OSCC) and its clinical significance. Methods: 70 OSCC patients and 50 healthy controls were included. The relative expression of MALAT1 in plasma was examined by quantitative realtime PCR. The expression of MALAT1 in plasma in 15 OSCC patients was analyzed retrospectively 30 days after operation. Results: The expression level of MALAT1 in plasma of OSCC patients was significantly higher than that of healthy controls(P＜ 0. 001). The expression level of MALAT1 in OSCC patients was significantly correlated with TNM stage, tumor differentiation and lymph node metastasis(P＜ 0. 05). After operation the expression level of MALAT1 in plasma of OSCC patients was significantly decreased(P＜ 0. 001). The AUC of the diagnosis of OSCC with MALAT1 was 0. 814, and the sensitivity and specificity were 87. 43％ and 72. 00％ respectively. Conclusion: MALAT1 can be used as an auxiliary diagnostic marker for OSCC.

ObjectiveTo investigate the effect of the Yap1 gene and tanshinone ⅡA on the proliferation, migration, and invasion abilities of Huh-7 hepatoma cells. MethodsA total of 10 pairs of human hepatocellular carcinoma (HCC) samples and adjacent tissue samples were collected in Zhongnan Hospital of Wuhan University from June 1 to December 1, 2019. Quantitative real-time PCR and Western blotting were used to measure the expression of the Yap1 gene and phenotype-related molecules. MTT cell proliferation detection reagent was used to measure the inhibition rate of cell proliferation after the treatment with different concentrations of tanshinone ⅡA. Western blotting was used to measure the changes in the expression of apoptosis-and migration-related markers after different interventions. Flow cytometry and Transwell assay were used to measure apoptosis and cell migration and invasion abilities. The data of 375 cases of liver cancer and 50 cases of relatively normal liver tissue samples were downloaded from The Cancer Genome Atlas, including clinicopathological information. The t-test was used for comparison of continuous data between two groups, and the chi-square test was used for comparison of categorical data between two groups. ResultsIn 8 of the 10 pairs of HCC samples and adjacent tissue samples, HCC samples had significantly higher expression of Yap1 than the adjacent tissue samples. Compared with the normal human liver epithelial cells L02, the Huh-7 and HCCL-M3 hepatoma cells had a significant increase in the expression of Yap1. The silencing efficiency of si-Yap1-3 transfection reached 87.004% at the protein level. MTT results showed that tanshinone ⅡA effectively inhibited the proliferation of Huh-7 cells, with a half inhibitory concentration of 8.683 μmol/L. After the cells were treated with si-Yap1-3 and tanshinone ⅡA, there was an increase in the expression of the downstream marker for proliferation and migration E-cadherin and a reduction in the expression of vimentin, and the results of Transwell assay showed that compared with the si-NC group, the tanshinone ⅡA+si-Yap1-3 group had significant reductions in the migration and invasion abilities of Huh-7 cells (migration: 43.19±2.88 vs 132.20±10.03, t=8.527, P=0.001; invasion: 53.95±4.20 vs 179.10±11.11, t=4.484, P=0.011). The group treated with si-Yap1-3 and tanshinone ⅡA had an increase in the expression of the apoptosis-related marker Bax and a reduction in the expression of Bcl-2, as well as a significantly higher early apoptosis rate than the si-NC group (2598% vs 9.21%, χ2=4.078, P＜0.05). ConclusionOncogene Yap1 silencing combined with tanshinone ⅡA can promote the apoptosis of Huh-7 hepatoma cells and inhibit their migration and invasion, which can provide certain guiding significance for clinical medication.

Objective To explore the clinical value of the contrast-enhanced ultrasound (CEUS) in the diagnosis of renal artery stenosis(RAS).Methods A total of 20 patients(12 males and 8 females) including 40 renal arteries,who were suspected to have RAS were enrolled in Department of Renal,Beijing Hospital.All patients were examined by color doppler ultrasound,CEUS and digital subtraction angiography (DSA).The results of conventional ultrasound and CEUS were compared with the DSA results,respectively.Results All patients had history of hypertension,aged (65 ± 5)years.12 branches (mild 6,moderate 4,severe 2) were RAS by regular ultrasound,17 branches (mild 8,moderate 6,severe 3)were RAS by by CEUS,while 19 branches (mild 9,moderate 7,severe 3) were diagnosed as RAS by DSA.The measure of agreement Kappa between conventional ultrasound and DSA was lower than that between CEUS and DSA (0.77 vs.0.96,P＜0.01).The diagnostic accuracy of mild,moderate and sever RAS with CEUS were 88.9％,94.1％ and 100％,respectively.Conclusions CEUS shows the renal artery more clearly than conventional ultrasound,and has a high consistency with DSA in the diagnosis of RAS.

As the life expectancy of the population increases and traditional indexes are flawed in reflecting the health level, the concept of the healthy life expectancy has emerged, which integrates the length of the life and quality, more comprehensively reflects the health level of the population. This article has summarized the emergence and development of health life expectancy, classification of indexes, and commonly used measurement methods, as well as domestic and international application examples, and domestic research status. It proposes to establish a unified national measurement method, and make full use of big data resources in health care to comprehensively assess the health life expectancy of the population.

Objective : To analyze circular RNA (circRNA) expression profiles in oral squamous cell carcinoma (OSCC) and its clinical significance. Methods : The expression of circRNA was detected with circRNA microarray assay in three samples of OSCC tumor and matched adjacent tissues. Quantitative real-time PCR (RT-qPCR) was used to verify the expression of circRNA in 45 pair OSCC tissues and normal adjacent tissues. The relationship between the expression of circRNA and the clinicopathological characteristics of OSCC was analyzed. circRNAs/miRNAs interaction were predicted using Arraystar' s home-made miRNA target prediction software. Results : 155 circRNAs were differentially expressed between the OSCC tissues and matched adjacent tissues, of which 45 circRNAs were up-regulated and 110 circRNAs were down-regulated in OSCC tissues (fold changes ≥1.5 and P < 0.05). In the selected three circRNAs that were most significantly upregulated or downregulated in OSCC, the RT-qPCR results showed that hsa_circ_0001874, hsa_circ_0001971 and has_circ_0067934 were increased, while hsa_circ_0000520, hsa_circ_0023944 and hsa_circ_0000140 were decreased in OSCC tissues versus normal adjacent tissues (P < 0.001). The results were generally consistent with the microarray data. Among the circRNA expression profiles in OSCC, the up-regulation of hsa_circ_0001874 was the highest and the expression of hsa_circ_0001874 was significantly correlated with TNM stage and tumor grade. The result of Arraystar' s home-made miRNA target prediction software indicated that miR-103a-3p, miR-107, miR-593-5p, miR-661 and miR-662 may be potential target genes of hsa_circ_0001874. Conclusion The differentially expressed circRNAs in OSCC tissues and normal adjacent tissues were identified, and these dysregulated circRNAs and their potential target gents may play important roles in the development of OSCC.

Objective: To explore the expression and clinical significance of circular RNA circHIPK3 in oral squamous cell carcinoma (OSCC), analyze the effect of circHIPK3 on the proliferation of OSCC cells. Methods: The expression of circHIPK3 in OSCC tissues, adjacent non-cancerous tissues and OSCC cell lines were detected by quantitative real-time polymerase chain reaction (qPCR). The correlations between the expression of circHIPK3 in OSCC tissues and the clinicopathological features were analyzed as well. circHIPK3-specific siRNA si-circHIPK3 and negative control siRNA si-NC were designed and synthesised and used to transfect CAL27 and SCC15 cells respectively. The proliferation capacity of CAL27 and SCC15 cells after transfection with si-circHIPK3 was detected by CCK-8 assay. The expression of miR-124 in OSCC was detected by qPCR, and the correlation between expression of circHIPK3 and the expression of miR-124 was analyzed. Using qPCR to detect the expression of miR-124 in CAL27 and SCC15 cells after transfection with si-circHIPK3 and si-NC respectively. Furthermore, using CCK-8 assay to detect the proliferation capacity of CAL27 and SCC15 cells after transfection with si-NC, si-circHIPK3, miR-124 mimic, si-circHIPK3+miR-124 inhibitor. Results: The expression of circHIPK3 in OSCC tissues [2.23 (1.86, 3.00)] was significantly higher than that of the adjacent non-cancerous tissues [1.05 (0.85, 1.26)] (U=1 094, P=0.000). The expression of circHIPK3 in CAL27 (3.02±0.51) and SCC15 cells (3.16±0.75) was higher than those of human normal oral keratinocytes (hNOK) (1.26±0.30) (P=0.000). The expression of circHIPK3 was found to be closely associated with TNM stage (P<0.05) and tumor grades (P<0.05). Knockdown of circHIPK3 can inhibit proliferation of CAL27 and SCC15 cells (P<0.05). The expression of miR-124 in OSCC tissues (0.61±0.35) was significantly lower than that in adjacent non-cancerous tissues (1.13+0.39) (t=-5.36, P<0.05). Correlation analysis showed that the expression of circHIPK3 in OSCC was negatively correlated with the expression of miR-124 (r=-0.767, P<0.001). Moreover, down-regulation of miR-124 rescued the phenotype induced by knockdown of circHIPK3. Conclusions The expression of circHIPK3 in OSCC was increased, and silencing of circHIPK3 expression can inhibit the proliferation of OSCC cells. Our results suggest that circHIPK3 may play a key role in the occurrence and development process of OSCC through the regulation of miR-124 expression.

Platinum-based chemotherapy resistance is a key factor of poor prognosis and recurrence in hepatocellular carcinoma (HCC). Herein, RNAseq analysis revealed that elevated tubulin folding cofactor E (TBCE) expression is associated with platinum-based chemotherapy resistance. High expression of TBCE contributes to worse prognoses and earlier recurrence among liver cancer patients. Mechanistically, TBCE silencing significantly affects cytoskeleton rearrangement, which in turn increases cisplatin-induced cycle arrest and apoptosis. To develop these findings into potential therapeutic drugs, endosomal pH-responsive nanoparticles (NPs) were developed to simultaneously encapsulate TBCE siRNA and cisplatin (DDP) to reverse this phenomena. NPs (siTBCE + DDP) concurrently silenced TBCE expression, increased cell sensitivity to platinum treatment, and subsequently resulted in superior anti-tumor effects both in vitro and in vivo in orthotopic and patient-derived xenograft (PDX) models. Taken together, NP-mediated delivery and the co-treatment of siTBCE + DDP proved to be effective in reversing chemotherapy resistance of DDP in multiple tumor models.