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Dong X.Y.,Wenzhou University | He S.,No.118th Hospital of PLA | Zhu L.,Wenzhou University | Pan S.S.,Wenzhou University | And 2 more authors.
International Journal of Oral and Maxillofacial Surgery

The study aimed to assess the diagnostic value of high-resolution ultrasonography (HR-US) in the detection of anterior disc displacement (ADD) of the temporomandibular joint. Relevant trials reported in MEDLINE, the Chinese National Knowledge Infrastructure Database, the Chinese Biomedical Literature Database, and Embase were identified. A manual search was also performed. The quality of retrieved data was evaluated using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) criteria. Data were extracted and cross-checked, and a statistically rigorous meta-analysis was performed using a hierarchical summary receiver operating characteristic model (HSROC). The clinical utility of results was assessed using Fagan nomograms (Bayes theory). All data were evaluated using Stata software. A total 11 studies including 1096 subjects were included in the analysis; all reported the utility of HR-US for the diagnosis of ADD with reduction (ADDWR) and without reduction (ADDWoR). For ADDWR, the weighted sensitivity and specificity were 0.83 (95% confidence interval (CI) 0.78-0.88) and 0.85 (95% CI 0.76-0.92) respectively. The lambda value was 3.41 (95% CI 2.37-4.46) and the Fagan nomogram pre-test probability 58%, with a positive likelihood ratio (LR) of 6.01. The positive post-test probability was 89%, with a negative LR of 0.20. The negative post-test probability was 21%. The positive increase in diagnostic utility was 31% and the negative decrement in that value 37%. For ADDWoR, the weighted sensitivity and specificity values were 0.72 (95% CI 0.59-0.81) and 0.90 (95% CI 0.86-0.93), respectively. The lambda value was 3.69 (95% CI 2.39-4.99) and the Fagan nomogram pre-test probability 38%, with a positive LR of 7.00. The positive post-test probability was 82%, with a negative LR of 0.32. The negative post-test probability was 16%. The increase in diagnostic utility was 44% and the negative decrement in that value 22%. HR-US delivers acceptable performance when used to diagnose ADD, being superior for the detection of ADDWoR than ADDWR, and exhibiting a lower negative diagnostic value in the detection of ADDWoR than ADDWR. HR-US may serve as a new method for the rapid diagnosis of ADD. The method has the advantages of simplicity and low cost. Given the uncertainty in some of the estimated values, more high-quality studies are needed to assess that diagnostic efficacy. © 2015 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved. Source

PURPOSE: The purpose of this meta-analysis was to evaluate the efficacy of the 2.0-mm locking miniplate/screw system in comparison with the 2.0-mm nonlocking miniplate/screw system in treatment of mandible fractures.METHODS: Articles published until March 2013 were searched in the PubMed and EMBASE electronic databases. Eligible studies were restricted to comparative controlled trials.RESULTS: Four studies with 220 patients and 420 fracture sites were enrolled into the analysis. The results showed that there were no significant differences in overall complications (odds ratio [OR], 0.57; 95% confidence interval [CI], 0.24–1.36; P = 0.21), postoperative infection (OR, 0.43; 95% CI, 0.13–1.41, P = 0.17), and postoperative pain (P > 0.05) when comparing 2.0-mm locking miniplates with 2.0-mm nonlocking miniplates in treating mandible fractures. However, the use of 2.0-mm locking miniplates had a lower postoperative maxillomandibular fixation (MMF) rate than the use of 2.0-mm nonlocking miniplates (OR, 0.18; 95% CI, 0.08–0.41; P < 0.0001).CONCLUSIONS: Mandible fractures treated with 2.0-mm locking miniplates and nonlocking 2.0-mm miniplates present similar short-term complication rates, and the low postoperative maxillomandibular fixation rate of using 2.0-mm locking miniplates also indicates that the 2.0-mm locking miniplate has a promising application in treatment of mandibular fractures. © 2014 by Mutaz B. Habal, MD. Source

Jingjing L.,Wenzhou University | Wangyue W.,Peoples hospital of Lishui | Qiaoqiao X.,Wenzhou University | Jietong Y.,Peoples hospital of Lishui
Open Medicine (Poland)

Increasing evidence showed that microRNAs (miRNAs) were implicated in the chemical resistance of human cancers. We intended to investigate the role of miR-218 in cisplatin sensitivity of esophageal cancer cells. Quantitative real-time polymerase chain reaction (qRT-PCR) was carried out to analyze miR-218 expression in human esophageal cancer cell line Eca9706 and a cisplatin-resistant subline (ECa9706-CisR cells). The effects of miR-218 transfection on ECa9706 and ECa9706-CisR cell viability, including cell viability and apoptosis rate were confirmed using MTT assay, or flow cytometry, respectively. qRT-PCR was used to validate survivin as a direct target gene of miR-218 in our system. We found that miR-218 was significantly decreased in ECa9706-CisR cells compared with parent Eca9706 cells. Overexpression of miR-218 by mimics transfection would enhance cisplatin sensitivity evaluated by cell viability inhibition and apoptosis promotion. We validated here survivin as a direct target of miR-218 in ECa9706 cells, which might contribute to the chemoresistance of esophageal cancer cells to cisplatin. In summary, our data suggest that miR-218 might represent as a promising sensitizer of cisplatin therapy in clinical esophageal cancer patients. © 2016 Lin Jingjing et al. Source

Mei J.,Wenzhou Medical College | Morris S.F.,Health Science Center | Ji W.,Peoples hospital of Lishui | Li H.,Peoples hospital of Lishui | And 2 more authors.
Surgical and Radiologic Anatomy

Purpose: The posterior forearm is an excellent donor site for the vascular pedicled cutaneous flaps; yet, there is surprisingly little detailed anatomical information based on clinical decision making. This study was undertaken to evaluate the anatomical basis of the dorsal forearm perforator flaps and to provide anatomical landmarks to facilitate flap elevation. Methods: Thirty cadavers were available to perform this anatomical study after arterial injection. Twenty fresh cadavers were injected with a modified lead oxide-gelatin mixture, selected for 3-dimensional reconstruction using special software (MIMICS) and the arterial territory measured with Scion Image. Other ten were injected with red latex preparation, and perforators were identified through dissection. Results: (1) The average number of posterior interosseous artery cutaneous perforators in the dorsal forearm was 5 ± 2, the average diameter was (0.5 ± 0.1) mm, and the pedicle length was (2.5 ± 0.2) cm. The average cutaneous vascular territory was (22 ± 15) cm 2. Cutaneous perforators could be found along the line extending from the lateral epicondyle to the radial border of the head of ulna. (2) Dorsal branch of anterior interosseous artery supplied blood to distal third of dorsal forearm; its average diameter was 0.8 mm. Conclusion: The free transplantation of the posterior interosseous perforator artery flaps or rotary flap pedicled by dorsal branch of anterior interosseous artery for defect reconstruction is feasible. © 2013 Springer-Verlag France. Source

Yan J.,Peoples hospital of Lishui | Jiang Y.,Peoples hospital of Lishui | Ye M.,Peoples hospital of Lishui | Liu W.,Peoples hospital of Lishui | Feng L.,Harbin Medical University
Journal of Cancer Research and Therapeutics

Background: Oral tongue squamous cell carcinoma (OTSCC) is an oral carcinoma prone to lymphatic metastasis. Intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) as important adhesion molecules play roles in regulating cell-cell adhesion and tumor cells metastasis.Materials and Methods: Lymphatic vessel density (LVD) was evaluated by immunohistochemistry using anti-human D2-40 antibody. The expression of ICAM-1 or VCAM-1 in lymphatic vessels were measured by double immunofluorescence staining. Then both of the LVD and the expression of ICAM-1 or VCAM-1 were compared between in normal tongue and in OTSCC lymphatic vessels. In OTSCC, statistical analyses were performed to determine the prognostic correlation of ICAM-1 or VCAM-1 levels.Results: LVD and expression of ICAM-1 or VCAM-1 in OTSCC lymphatic vessels was higher than those in normal tongue lymphatic vessels (LVD: 21.454 ± 7.022, 8.498 ± 1.679; ICAM-1: 30.241 ± 5.639%, 5.050 ± 1.227%; VCAM-1: 33.134 ± 5.127%, 2.113 ± 0.446%, in OTSCC, normal tongue tissues, respectively). High LVD and high ICAM-1 or VCAM-1 expression in lymphatic vessels was significantly associated with lymphatic node metastasis. Overall survival was significantly shorter in patients with high LVD and ICAM-1 or VCAM-1 expression in lymphatic vessels.Conclusions: LVD and expression of ICAM-1 or VCAM-1 in OTSCC was higher than that in normal tongue lymphatic vessels. Monitoring changes in the expression of ICAM-1 or VCAM-1 in lymphatic vessels may be a useful technique for assessing prognoses in OTSCC patients. Source

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