Objective To explore the impact of TIMP 3 regulated by miR-181b as a target gene on invasion and migration of hepatocellular carcinoma (HCC) in vitro.Methods The expressions of miR-181b were detected using SYBR Green real-time fluorescence quantitative polymerase chain reaction on liver cancer specimens and on HCC cell lines.The protein expression of TIMP 3 in HCC was detected using westen blot,and SKHep-1 as a cell line expressing high miR-181b was chosen through reporter gene experiment.TIMP-3 as a target gene regulated by miR-181b and its effect on invasion and migration treated by anti-miR-181 b were studied using transwell and cell scarification test,respectively.Results The expression of miR-181b in HCC was higher than cancer-adjacent tissues and normal liver tissues.The differences among them were significant.There was a correlation between the high expression of miR-181b and invasiveness and metastasis in HCC.The protein expression of TIMP-3 in HCC was significantly lower than normal liver tissues and cancer-adjacent tissues.Expression of miR-181b mRNA was detected in various HCC cell lines such as Hep3B,HepG2,Huh 7,SKHep-1,SNU182,SNU449 and hepatocyte,with the expression of miR-181b in SKHep-1 being the highest (P＜0.01).TIMP3-3UTR was low when the expression of miR-181b was high (P＜0.05).The invasion and migration abilities of SKHep-1 were significantly inhibited by anti-miR-181b (P＜0.05).Conclusion The data suggested that miR-181b promoted invasion and migration of SKHep-1 by down-regulating TIMP-3 in HCC.

Objective: To observe the clinical effect of tuina in rehabilitation following total hip replacement. Methods: 60 cases were randomly allocated into a treatment group and control group, 30 cases in each group. Cases in the treatment were treated with combined mina and rehabilitation, while cases in the control group were treated with rehabilitation alone. All treatment retained for two weeks. The results were observed 7 d, 2 weeks and 6 weeks following the total hip replacement using Harris scale and Hamilton Anxiety Rating Scale (HAMA).Results: For Harris scale, there were significant intra-group differences in different time frames (P＜0.05); there were no statistical differences between the two groups 1 d, 7 d and 6 weeks following the total hip replacement (P＞0.05); and there were statistical differences between the two groups 2 weeks following the total hip replacement. For HAMA scale, there were significant intra-group differences in different time frames (P＜0.05); there were no significant differences between the two groups 1 d following the total hip replacement; and there were substantial differences between the two groups 7 d, 2 weeks and 6 weeks following the total hip replacement. Conclusion: In a given unit time, combined mina and rehabilitation is superior to rehabilitation alone in improving the patients' post-operative pain, articular range of motion and anxiety.

Objective To evaluate the reliability and validity of the Chinese version of the Diabetes,Hypertension and Hyperlipidemia(DHL) Knowledge Instrument in community diabetic patients.Methods A face-to-face interview was conducted among 513 patients with diabetes in the community from January to March 2016 by using the Chinese version of DHL Knowledge Instrument.Forty of them were randomly sampled and reinvestigated 4 weeks later.The analyses on Cronbach's α coefficient,test-retest reliability,content validity,discriminant validity and construct validity were performed to evaluate reliability and validity of the DHL Knowledge Instrument.Results The qualified questionnaires were collected from 488 participants,including 232 males and 256 females with a mean age of (66 ± 6)years.The overall scores of the Chinese version of DHL Knowledge Instrument was 67.7 ± 18.0 and the scores of diabetes,hypertension,hyperlipidemia,medications and general issues sub-scales were 82.0 ± 22.5,65.9 ± 25.2,38.2 ± 34.3,75.5 ± 20.8 and 72.1 ± 22.9,respectively.The standardized Cronbach's α coefficient of the total scale was 0.849 and the test-retest reliability of the total scale was 0.706 (P ＜ 0.01).In term of content validity,the correlation coefficient was from 0.580 to 0.827 among total scale and sub-scales (P ＜ 0.01).In term of discriminant validity,the difference between the high and the low score group on total scale and sub-scales were significant (t value =-13.486 to-35.528,all P ＜ 0.01).In term of construct validity,based on exploratory factor analysis,the scale was revised.According to confirmatory factor analysis of revised scale,four factor model containing 20 items was well fitted (X2 =159.689,df =134,P =0.064);the GFI (goodness of fit index) =0.966,AGFI (adjusted goodness of fit index) =0.952,RMSEA (root mean square error of approximation) =0.020.Conclusion The Chinese version of DHL Knowledge Instrument possesses good reliability and validity and is suitable to evaluate the knowledge of community diabetic patients,and the modified version may work better than the original one.

ObjectiveTo study prognostic factors and surgical extent of papillary thyroid microcarcinona (PTMC). MethodsLiteratures about PTMC were searched. Relationship between prognostic factors and recurrence after initial operation was analyzed by meta analysis. The surgical extent of PTMC was discussed. Results A total of 12 retrospective studies were included. Meta analysis results showed that factors such as male, tumor size ＞ 5 mm, nonincidental, positive lymphnode, multifocus, and capsular invasion were related to recurrence after initial surgery. Age above 45 years had nothing to do with the recurrence rate of PTMC. There was no signifi.cant difference in recurrence rate between prophylactic neck dissection groups and the groups without prophylactic neck dissection. ConclusionsMany factors are related to the prognosis of PTMC. The surgical extent depends on prognostic factors. Prophylactic neck dissection is not supposed to be conventional surgical procedure for PTMC. Bilateral central lymph node dissection is appropriate to PTMC with positive lymph node.

The present study was aimed to use the 3-D cone beam CT (CBCT) as a new method in human bite marks identification which was carried out in experimental pigskin to assess its effectiveness in our laboratory. Bite marks were digital photographed according to American Board of Forensic Odontology (ABFO) guidelines. In this study, the data of the suspect's dental casts were collected by scanning in two ways: one was after plate scanning, in which the comparison overlays were generated by Adobe Photoshop 8.0 software; the other was by CBCT, which generated comparison overlays automatically. The bite marks were blind identified with the two kinds of data of the suspect's dental casts respectively. ROC curve was used to analyze the sensitivity, specificity, and 95% confidence interval. The results showed that CBCT method got a larger area under the ROC curve: 0.784 (SE = 0.074, 95% CI = 0.639-0.929), and got a very high specificity (specificity 98.7%, 95% CI = 94.5%-99.8%). Thus, this study illustrates that the CBCT used in bite mark identification is an effective and accurate tool and has stronger ability to exclude suspects compared with the conventional method, but the comparison process needs further study to enhance its effectiveness in bite mark identification.
Adolescent ; Adult ; Bites, Human ; diagnostic imaging ; Cone-Beam Computed Tomography ; methods ; Copying Processes ; Dental Models ; Dentition ; Female ; Forensic Dentistry ; methods ; Humans ; Imaging, Three-Dimensional ; methods ; Male ; Radiographic Image Interpretation, Computer-Assisted ; methods ; Young Adult

OBJECTIVE: To investigate the clinical, pathological character and differential diagnosis of laryngeal verrucous carcinoma. METHOD: Clinical data of one case with laryngeal verrucous carcinoma in our hospital were retrospectively analyzed. RESULT: The diagnosis of verrucous carcinoma was difficult and depend on repeated biopsy. Verrucous carcinoma of larynx is a highly differentiated variant of squamous carcinoma that has peculiar clinical and morphological features. The basement membrane is not invaded. It is prone to distant metastasis, than to local recurrence. The case underwent the partial laryngectomy, and was followed up for more than 4 years with no recurrence. CONCLUSION Verrucous carcinoma of the larynx is a special pattern of the well-differentiated squamous cancer. A correct diagnosis requires close cooperation between the laryngologist and the pathologist. The main treatment of verrucous carcinoma is complete surgical excision to reserve larynx function as far as possible and improve the quality of life.
Carcinoma, Verrucous ; diagnosis ; surgery ; Humans ; Laryngeal Neoplasms ; diagnosis ; surgery ; Male ; Middle Aged ; Retrospective Studies

OBJECTIVE: To analyze the clinical presentation, pathological feature, therapy and outcome of epithelioid hemangioma. METHOD: We reviewed the clinical findings, pathologic changes and outcomes of six cases with epithelioid hemangioma from Aug. 2007 to Sept. 2011. RESULT: There are four males and two females ranged from 18 to 44 years(median year was 29.5). Primary lesions sites included the parotid gland, neck and ear. Four lesions presented as a solitary mass, and no patient had history of trauma. All patients were treated by surgeries, and not complemented by medical. There were four patients relapsed during follow-up, and three of them accepted reoperations (two patients received postoperative radiotherapies), and no recurrence was detected. CONCLUSION Epithelioid hemangioma represents a benign vascular tumor, accurate diagnosis relies on clinical characteristic, histopathologic appearance and immunohistochemical findings, and it must be differentiated with Kimura's disease. The main treatment is surgery and the prognosis is well, but easy to recurrence.
Adolescent ; Adult ; Diagnosis, Differential ; Female ; Head and Neck Neoplasms ; diagnosis ; Hemangioma ; diagnosis ; Humans ; Male ; Prognosis

OBJECTIVE: To investigate the histogenesis, morphological features and biologic behaviors of granular cell tumor(GCT) of the larynx. METHOD: A retrospective study was performed in three cases of GCT in our hospital, the clinical data were studied with histopathologic analysis, histochemical and immunohistochemical staining, and combining with the analysis of domestic and foreign literatures. RESULT: Histopathologic features of laryngeal GCT were identical to that in soft tissues, but pseudoepitheliomatous hyperplasia was present in 50%-60% cases of the tumor. This disease may originate from the neurogenic Schwann cell, S-100 could be positive in immunohistochemistry. CONCLUSION Laryngeal GCT is a rare benign tumor and can be cured by local excision.
Adult ; Diagnosis, Differential ; Female ; Granular Cell Tumor ; diagnosis ; Humans ; Laryngeal Neoplasms ; diagnosis ; Male ; Middle Aged ; Retrospective Studies

Objective:To evaluate the global and segmental myocardial work in patients with cardiac amyloidosis (CA) by left ventricular pressure-strain loop (PSL) noninvasively.Methods:Eighteen patients with CA in Beijing Chao-Yang Hospital from March 2018 to December 2020 were included as CA group, 20 healthy subjects were selected as control group. The global longitudinal strain (GLS) and mechanical dispersion (MD) of left ventricle were analyzed by two-dimensional speckle tracking imaging. The left ventricular PSL was used to assess global work index (GWI), global constructive work (GCW), global waste work (GWW), and global work efficiency (GWE). The mean value of left ventricular basal, mid and apical myocardial work index (MWI), constructive work (CW), waste work (WW) and work efficiency (WE) were calculated and compared between the two groups.Results:①Compared with the control group, GLS was decreased and MD was increased in CA group (all P<0.05). ②GWI, GCW, GWW and GWE were decreased in CA group compared with the control group (all P<0.05). ③In CA group, the MWI, CW and WE of the basal, mid and apical segments were lower than those of control group (all P<0.05), WW of the basal and mid segments were lower than those of apical segment(all P<0.05). The impairment of MWI, WW and WE in basal and mid segment were more significant than those of apical segment (all P<0.05). ④GWI, GCW and GWE were positively correlated with GLS ( r=0.854, 0.816, 0.748; all P<0.001) and LVEF ( r=0.674, 0.634, 0.650; all P<0.01), and negatively correlated with MD ( r=-0.657, -0.672, -0.710, all P<0.01). GWI and GCW were negatively correlated with E/e′ ( r=-0.493, -0.539; all P<0.05). Conclusions:The global, basal, mid and apical left ventricular myocardial work indices are decreased in CA patients. MWI, CW and WE show an apical sparing pattern. Quantitative assessment of myocardial work by PSL may provide more valuable information for CA patients.