1.Internal jugular vein thrombosis with serious cervical necrotizing fasciitis: a case report.
Shujun CHEN ; Yuxuan CHEN ; Linwei ZHAO ; Chao CUI
West China Journal of Stomatology 2016;34(2):215-217
Cervical necrotizing fasciitis (CNF) is an aggressive infection associated with high mortality. Various complications have been described in previous literature. However, internal jugular vein thrombosis is rare in such lesions. We presented a case of internal jugular vein thrombosis caused by CNF and analyzed related literature.
Fasciitis, Necrotizing
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complications
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Humans
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Jugular Veins
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Neck
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Venous Thrombosis
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etiology
2.Expression of beta 2 adrenergic receptor in infantile hemangiomas tissue
Zheyuan ZHAO ; Xiaodan LI ; Haizhou CHEN ; Yuxuan CHEN
Chinese Journal of Medical Aesthetics and Cosmetology 2016;22(3):182-184
Objective To detect the expression of beta 2 adrenergic receptor in the infantile hemangiomas (IH) tissue and to explore its role in the pathological evolution of infantile hemangiomas as well.Methods 48 cases of infantile hemangioma were divided into two groups.29 cases were in the proliferating period,while the other 19 cases were in non-proliferating period.By using immunofluorescence technology,the endothelial nuclei and beta 2 adrenergic receptor of the IH tissue were marked by fluorescent tags,respectively,in two groups.The location of fluorescent labeling was shown in photos.By using the Image-Pro Plus 6.0 software,we analyzed and compared the average fluorescence intensity of endothelial cell nucleus and beta 2 adrenergic receptors in these two groups.Results Beta 2 adrenergic receptors were widely expressed in IH tissue,especially in endothelial cell nucleus shown in fluorescent images.The average fluorescence intensity of endothelial cell core in proliferating IH group was 0.031 ±0.002,which was much higher than that of fading period IH group (0.022±0.002).There was significant statistical different (P<0.05).The average fluorescence intensity of beta 2 adrenergic receptor in proliferating IH group was 0.035± 0.003,which was much higher than that of fading period IH group (0.028± 0.002).There was significantly statistical different between the two groups (P<0.05).Conclusions Beta 2 receptors are widely expressed in the endothelial cells of infantile hemangioma.
3.Development of a regional medical center in Shaoxing:reform practices and experiences
Hengjin DONG ; Yuxuan GU ; Qilin SONG ; Guozhong CHEN ; Huifen DAI
Chinese Journal of Hospital Administration 2016;32(7):493-495
Thanks to the policies of resources to strengthen grassroots ,and innovative resource placement in Zhejiang province and the help of Zhejiang University School of Medicine ,Shaoxing regional medical center has achieved significant improvement in its medical capabilities .The cooperation features the following :active promotion of new medical ideas and key technologies ;overall enhancement of scientific and technological innovation ;talent training to advance disciplinary development ;and joint efforts to train postgraduates .The momentum ,however ,can only be maintained ,unless such problems as the means of resources placement ,disciplines alignment ,and medical workers development can be well addressed .
4.Application of internal distraction osteogenesis for the treatment of complicated teeth-maxillofacial defor-mity
Yuxuan CHEN ; Xiaoxian HAN ; Xuegang NIU ; Shujun CHEN ; Xuemei LIN ; Xiaozong WEI
Journal of Practical Stomatology 2015;(6):815-820
Objective:To evaluate the effect of internal distraction osteogenesis in the treatment of complicated teeth-maxillofacial deformity.Methods:Clinical data of 1 0 cases with complicated teeth-maxillofacial deformity were analyzed retrospectively.In the first stage,the patients were operated by internal distraction osteogenesis.In the second stage,the distractor was removed after 3 to 6 months of consolidation period,followed by other operation for further occlusal reconstruction.Results:All the operations were per-formed as planned.The distraction distance was 7 -70 mm.The distraction process was smooth in all the cases.Occlusion was recon-structed and the deformity was corrected by following operation satisfactorily.Conclusion:Internal distraction osteogenesis is effective in the treatment of complicated teeth-maxillofacial deformity for further occlusal reconstruction and functional repair.
5.Analysis of early dental implant failure and retreatment of 6 cases
Jianrui XIAO ; Xiaoxian HAN ; Yuxuan CHEN ; Shujun CHEN ; Liang KONG ; Hongyan QU ; Xinxin YU
Journal of Practical Stomatology 2014;(2):237-240
Objective:To analyse the causes of early implantation failure and the therapeutic measures with re-implantation after the failures.Methods:6 cases of implantation failure including early infections,loosening and non-osteointegration were reviewed and trea-ted by re-implantation therapy,and the causes of failure were discussed and the effects of re-treatment were evaluated.Results:2 cases were found to be with infection of adjacent teeth after implantation and were treated by removal of the implant,socket curettage,root ca-nal therapy(RCT)and antibiotics followed by reimplantation.Implant loosening and non-osteointegration were observed in 4 cases, which were treated by the similar methods for the implant socket.Reimplantation was successful in all 6 cases followed-up for 1 -3 years.Conclusion:Preventive measure for implantation failure should include indication selection,control of infections in adjacent teeth and periodontosis,use of GBR technic and so on.Re-implantation following proper treatment of adjacent teeth and the socket of implant is effective for the treatment of implantation failure.
6.Effect of the peri-implantitis on the biological function of osteoblasts obtained from the mandibles.
Hao WU ; Hong-chen LIU ; Lingling E ; Na LIU ; Bo ZHANG ; Yuxuan GAO ; Lin FENG
West China Journal of Stomatology 2014;32(2):130-133
OBJECTIVETo study the effect of peri-implantitis inflammatory microenvironment on the biological function of jaw bone osteoblasts.
METHODSPrimary mandible osteoblasts from peri-implantitis and normal tissue were isolated and cultured. Third-generation purified osteoblasts were identified and detected. The proliferative activity of osteoblasts was evaluated through MTT assay. Osteocalcin (OCN), Runx2, and collagen I (Col I) mRNA levels were examined by real-time quantitative polymerase chain reaction. OCN protein levels were determined by Western blot.
RESULTS: After 4 d of culture, the proliferative activity of osteoblasts from peri-implantitis became lower than that of normal tissue ( P <0.05). After 7 d of culture, OCN, Runx2, and Col I mRNA expression decreased ( P <0.05). The OCN protein levels also decreased ( P <0.05).
CONCLUSIONPeri-implantitis inflammatory microenvironment can decrease the proliferation and differentiation activity of mandible osteoblasts.
Bone and Bones ; Cell Differentiation ; Humans ; Mandible ; Osteoblasts ; Osteocalcin ; Peri-Implantitis ; RNA, Messenger
7.Immunogenicity of the Spike Glycoprotein of Bat SARS-like Coronavirus
Yuxuan HOU ; Cheng PENG ; Zhenggang HAN ; Peng ZHOU ; Jiguo CHEN ; Zhengli SHI
Virologica Sinica 2010;25(1):36-44
A group of SARS-Iike coronaviruses(SL-CoV)have been identified in horseshoe bats.Despite SL-CoVs and SARS-CoV share identical genome structure and high-level sequence similarity,SL-CoV does not bind to the same cellular receptor as for SARS-CoV and the N-terminus of the S proteins only share 64% amino acid identity,suggesting there are fundamental differences between these two groups of coronaviruses.To gain insight into the basis of this difference,we established a recombinant adenovirus system expressing the S protein from SL-CoV(rAd-Rp3-S)to investigate its immune characterization.Our results showed that immunized mice generated strong humoral immune responses against the SL-CoV S protein.Moreover,a strong cellular immune response demonstrated by elevated IFN-γ and IL-6 levels was also observed in these mice.However,the induced antibody from these mice had weaker cross-reaction with the SARS-CoV S protein,and did not neutralize HIV pseudotyped with SARS-CoV S protein.These results demonstrated that the immunogenicity of the SL-CoV S protein is distinct from that of SARS-CoV,which may cause the immunological differences between human SARS-CoV and bat SL-CoV.Furthermore,the recombinant virus could serve as a potential vaccine candidate against bat SL-CoV infection.
9.The clinical value of capsule endoscopy image screening system
Shanliang YE ; Yang BAI ; Yangzhi XU ; Yuxuan CHEN ; Lei KUANG ; Side LIU
Chinese Journal of Digestive Endoscopy 2012;29(11):615-617
ObjectiveTo evaluate the clinical value of capsule endoscopy (CE) image screening system developed by our group.MethodsBetween March 2011 and June 2011,50 patients (29 males and 21 females with a mean age of 45.7(45.7 ± 4.1 ) ) underwent CE in our department.CE images were reviewed,and processed by the screening system at the rate of 50%,60%,70%,80% and 90%,respectively.After reviewing the remaining and the deleted frames,the endoscopists calculated the remaining rate of the lesions by recording the number of lesions of all patients and the number of remaining lesions.The procedure time and the total number of the frames of each case were also recorded.ResultsA total of 39 patients of 50 had lesions and the detection rate was 78%.91 lesions were detected in the 39 patients,most of whom had more than 2 lesions.When the prescribed deletion rate was less than or equal to 60%,the lesion remaining rate reached 100%,with a mean frames of the cases of 46 242,and the mean processing time of 15.62 min.ConclusionWith all the lesions remained,the system can delete 60% similar frames in a very short time,which greatly reduces the diagnosis time and workload for endoscopist,and improves the efficiency of capsule endoscopy.
10.Urinary nucleosides in the diagnosis of primary gallbladder carcinoma
Yuxuan MO ; Heping PENG ; Kaiyun CHEN ; Lingjia TANG ; Jingsen SHI ; Xingyuan JIAO
Chinese Journal of Hepatobiliary Surgery 2013;19(11):841-845
Objective To evaluate the value of urinary normal and modified nucleosides in the diagnosis of primary gallbladder carcinoma.Methods Between March 2011 to September 2012,28 patients with primary carcinoma of the gallbladder (PCG) were included in this study.Spontaneous urine samples were collected and 10 kinds of urinary nucleosides in the sample were determined by reversed-phase high performance liquid chromatography method.Another 62 patients with benign gallbladder disease and 70 healthy volunteers were enrolled as controls.Routine clinical tumor markers,including serum CA19-9 and CA125 levels of the PCG patients were also evaluated.Results 10 kinds of nucleoside had a good linear correlation (r>0.99),and the recovery rate was between 87.4% ~121.5% range,and the accuracy rate was between 87.7% ~121.3%,and the RSD of precision was between 1.5%~10.5% range.In addition to adenosine and cytidine,the mean levels of the rest of the urinary nucleosides in the PCG group were much higher than those of the controls (P<0.01).Based on principal component analysis,89.3% of the PCG patients were correctly identified,which was much higher than those detected by CA19-9 (60.7%) and CA125 (67.9%) (P<0.01).Conclusion Urinary nucleosides may become additional tumor markers which when combined with other clinical methods may help in the screening and early diagnosis of primary gallbladder cancer.