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| 1 | TRAP1 Shows Clinical Significance and Promotes Cellular Migration and Invasion through STAT3/MMP2 Pathway in Human Esophageal Squamous Cell Cancer显示文摘Tumor necrosis factor receptor-associated protein 1(TRAP1), an important member of mitochondrial heat shock protein 90 family, is involved in multiple biological processes in several types of tumors. However, its pathological role in esophageal squamous cell cancer(ESCC) remains unknown. Herein, we demonstrated the clinical value of TRAP1, and its role in apoptosis and motility in ESCC. The clinical potential of TRAP1 was investigated through immunohistochemical analysis in 328 ESCC samples, which revealed that strong TRAP1 expression was associated with increased risk of lymph node metastasis, while high TRAP1 expression correlated with poor prognosis. Expression of TRAP1 was found to be an independent prognostic factor for patients with ESCC. Additionally, the upregulation of TRAP1 antagonized cisplatin-induced apoptosis while its downregulation sensitized cells to cisplatin-induced apoptosis. As revealed by the transwell assay, TRAP1 overexpression promoted cellular migration and invasion as compared to the control groups. In contrast,silencing of endogenous TRAP1 expression attenuated the ability of migration and invasion. Finally, the molecular mechanism investigated in the present study demonstrated that TRAP1-mediated migration and invasion occurred through STAT3/MMP2 signaling pathway. In conclusion, TRAP1 may be considered as a molecular predictive marker for prognosis and a novel molecular candidate for therapeutic target in ESCC. | Yunwei Ou Lingyan Liu Liyan Xue Wei Zhou Zitong Zhao Bainan Xu Yongmei Song Qimin Zhan | 2014 | Journal of Genetics and Genomics2014,41,10: | 8 |
| 2 | Wall shear stress in intracranial aneurysms and adjacent arteries显示文摘Hemodynamic parameters play an important role in aneurysm formation and growth. However, it is difficult to directly observe a rapidly growing de novo aneurysm in a patient. To investigate possible associations between hemodynamic parameters and the formation and growth of intracranial aneurysms, the present study constructed a computational model of a case with an internal carotid artery aneurysm and an anterior communicating artery aneurysm, based on the CT angiography findings of a patient. To simulate the formation of the anterior communicating artery aneurysm and the growth of the internal carotid artery aneurysm, we then constructed a model that virtually removed the anterior communicating artery aneurysm, and a further two models that also progressively decreased the size of the internal carotid artery aneurysm. Computational simulations of the fluid dynamics of the four models were performed under pulsatile flow conditions, and wall shear stress was compared among the different models. In the three aneurysm growth models, increasing size of the aneurysm was associated with an increased area of low wall shear stress, a significant decrease in wall shear stress at the dome of the aneurysm, and a significant change in the wall shear stress of the parent artery. The wall shear stress of the anterior communicating artery remained low, and was significantly lower than the wall shear stress at the bifurcation of the internal carotid artery or the bifurcation of the middle cerebral artery. After formation of the anterior communicating artery aneurysm, the wall shear stress at the dome of the internal carotid artery aneurysm increased significantly, and the wall shear stress in the upstream arteries also changed significantly. These findings indicate that low wall shear stress may be associated with the initiation and growth of aneurysms, and that aneurysm formation and growth may influence hemodynamic parameters in the local and adjacent arteries. | Fuyu Wang Bainan Xu Zhenghui Sun Chen Wu Xiaojun Zhang | 2013 | Neural Regeneration Research2013,8,11: | 6 |
| 3 | Plasticity of language pathways in patients with low-grade glioma A diffusion tensor imaging study显示文摘Knowledge of the plasticity of language pathways in patients with low-grade glioma is important for neurosurgeons to achieve maximum resection while preserving neurological function. The current study sought to investigate changes in the ventral language pathways in patients with low-grade glioma located in regions likely to affect the dorsal language pathways. The results revealed no significant difference in fractional anisotropy values in the arcuate fasciculus between groups or between hemispheres. However, fractional anisotropy and lateralization index values in the left inferior longitudinal fasciculus and lateralization index values in the left inferior fronto-occpital fasciculus were higher in patients than in healthy subjects. These results indicate plasticity of language pathways in patients with low-grade glioma. The ventral language pathways may perform more functions in patients than in healthy subjects. As such, it is important to protect the ventral language pathways intraoperatively. | Gang Zheng Xiaolei Chen Bainan Xu Jiashu Zhang Xueming Lv Jinjiang Li Fangye Li Shen Hu Ting Zhang Ye Li | 2013 | Neural Regeneration Research2013,8,7: | 3 |
| 4 | Intraoperative diffusion tensor imaging predicts the recovery of motor dysfunction after insular lesions显示文摘Insular lesions remain surgically challenging because of the need to balance aggressive resection and functional protection. Motor function deficits due to corticospinal tract injury are a common complication of surgery for lesions adjacent to the internal capsule and it is therefore essential to evaluate the corticospinal tract adjacent to the lesion. We used diffusion tensor imaging to evaluate the corticospinal tract in 89 patients with insular lobe lesions who underwent surgery in Chinese PLA General Hospital from February 2009 to May 2011. Postoperative motor function evaluation revealed that 57 patients had no changes in motor function, and 32 patients suffered motor dysfunction or aggravated motor dysfunction. Of the affected patients, 20 recovered motor function during the 6-12-month follow-up, and an additional 12 patients did not recover over more than 12 months of follow-up. Following reconstruction of the corticospinal tract, fractional anisotropy comparison demonstrated that preoperative, intraoperative and follow-up normalized fractional anisotropy in the stable group was higher than in the transient deficits group or the long-term deficits group. Compared with the transient deficits group, intraoperative normalized fractional anisotropy significantly decreased in the long-term deficits group. We conclude that intraoperative fractional anisotropy values of the corticospinal tracts can be used as a prognostic indicator of motor function outcome. | Jinjiang Li Xiaolei Chen Jiashu Zhang Gang Zheng Xueming Lv Fangye Li Shen Hu Ting Zhang Bainan Xu | 2013 | Neural Regeneration Research2013,8,15: | 2 |
| 5 | Magnetic resonance diffusion tensor imaging-based evaluation of optic-radiation shape and position in meningioma显示文摘Employing magnetic resonance diffusion tensor imaging, three-dimensional white-matter imaging and conventional magnetic resonance imaging can demonstrate the tumor parenchyma, peritumoral edema and compression on surrounding brain tissue. A color-coded tensor map and three-dimensional tracer diagram were applied to clearly display the optic-radiation location, course and damage. Results showed that the altered anisotropy values of meningioma patients corresponded with optic-radiation shape, size and position on both sides. Experimental findings indicate that the magnetic resonance diffusion tensor imaging technique is a means of tracing and clearly visualizing the optic radiation. | Xueming Lv Xiaolei Chen Bainan Xu Jiashu Zhang Gang Zheng Jinjiang Li Fangye Li Guochen Sun | 2012 | Neural Regeneration Research2012,7,9: | 1 |
| 6 | Smartphone-based rapid and visual pathological diagnosis of glioma using perovskite probes显示文摘Histopathology plays a great role in diagnosing various diseases,which is considered as a golden standard for tumor identification.The tissue constituents must be stained by visible labels for microscopic analysis by medical experts.However,this process is time-consuming,labor-intensive,and expensive,which requires rapid pathological approaches for diagnosis in the operating room.Here,we present an easy-to-process and high-performance perovskite biological probes for rapid and visual pathological diagnosis of glioma.Perovskite quantum dots can be encapsulated by the copolymer into nanocrystals(PNCs)with a diameter of 100 nm,which is modified with chlorotoxin to achieve the specific recognition of glioma.Benefiting from the super photoluminescence quantum yield(above 93%)of EVA@PNCs aqueous solution,the glioma can be clearly imaged and captured via a smartphone under the excitation of a handheld UV lamp.To demonstrate the visualization and efficiency of PNC probes,different malignant grades of brain tumor sections can be distinguished in no more than 5 min.This strategy provides a general auxiliary diagnosis platform for achieving the histopathology analysis near the operating bed,which is currently not feasible with standard histochemical staining methods. | Dongdong Wu Jimei Chi Junzhen Fan Lijun Cheng Xuning Wang Xu Yang Meng Zhang Zewei Lian Zengqi Huang Huadong Wang Hongfei Xie Sisi Chen Qi Pan Zeying Zhang Bingda Chen Guochen Sun Bainan Xu Meng Su Yanlin Song | 2023 | InfoMat2023,5,11: | 0 |
| 7 | Normal values of flash visual evoked potentials in rabbits: Differences between the sexes and the eyes显示文摘BACKGROUND: The wave form, latency and wave amplitude of visual evoked potentials (VEP) are obviously affected by the stimulative parameters, physiological status of the subjects and anesthetics, thus there are greater normal variations and individual differences. The features of flash VEP (F-VEP) are to be observed. OBJECTIVE: To observe and compare the differences of F-VEP latencies and wave amplitudes between eyes in rabbits, and investigate the correlation with sex and the side of eyes. DESIGN: A comparative animal experiment. SETTING: Department of Neurosurgery, General Hospital of Chinese PLA. MATERIALS: The experiment was carried out in the neurophysiological laboratory of the Institute of Neurosciences, General Hospital of Chinese PLA from September 2004 to February 2005. Thirty big-ear rabbits of clean degree, 15 males and 15 females, weighing 2.0-2.5 kg, were provided by the animal center of the General Hospital of Chinese PLA. METHODS: Viking-IV perioperative monitor and flash stimulator for special use were applied. The rabbits were anesthetized with intramuscular injection of compound ketamine. The recording electrode was placed at 3 mm anterior to exoccipital tuberosity (onion, Oz), and the reference electrode was placed at the ear edge of the same side. The stimulative frequency was 1.9 Hz, and the amplifier was 50 μV; The range of wave filter was 5 Hz for high pass and 100 Hz for low pass; The average overlapping was 200 times, and the analytical time was 250 ms. MAIN OUTCOME MEASURES: Comparison of F-VEP wave forms; F-VEP latencies and wave amplitudes. RESULTS: All the 30 rabbits were involved in the analysis of results. ① Comparison of F-VEP wave forms in rabbits: The F-VEP waves mainly manifested as positive-negative-positive (PNP). The F-VEP manifestations to light stimulations were extremely similar between left and right eyes, and the wave amplitudes of both eyes were obviously increased. ② Determinations of F-VEP latencies and wave amplitudes: There were no significant differences in the latencies and wave amplitudes of F-VEP between the two groups (P > 0.05), the latencies of P1, N1 and P2 waves of left eye were (32.59±2.01), (43.85±4.35) and (66.20±8.13) ms, respectively, and the wave amplitudes of P1, N1 and P2 waves of left eye were (16.45±10.22), (7.93±3.56) and (17.62±8.18) μV. F-VEP latencies were stable with small changes, whereas amplitudes had greater changes. CONCLUSION: ① The latency and wave amplitudes F-VEP were stable with good repetition. ② The latencies and wave amplitudes had no significant differences between males and females, as well as between left and right eyes. Further investigation should be undertaken on the animal and clinical field. | Bo Bu Dingbiao Zhou Bainan Xu Xinguang Yu Yuanzheng Zhang | 2006 | Neural Regeneration Research2006,1,8: | 0 |