1.Clinical observation of 577 nm panretinal photocoagulation on macular foveal retinal thickness on diabetic retinopathy
Chen-Xia, JIA ; Sheng-Qiang, XIAO
International Eye Science 2015;(7):1259-1260
AlM: To investigate the influences of 577nm panretinal photocoagulation ( PRP ) on the retinal thickness of macular fovea on diabetic retinopathy ( DR) .METHODS:A total of 45 eyes of 37 cases suffering from preproliferative diabetic retinopathy ( PPDR ) and proliferative diabetic retinopathy ( PDR ) undergoing 577nm PRP were enrolled in this study. The alterations of the retinal thickness of macular fovea measured by optovue optical coherence tomography( OCT) before and 1, 3, 6mo following PRP were comparatively analyzed.RESULTS: The macularfoveal retinal thickness after 1, 3mo of PRP had significantly increased that before operation (P<0. 05). After 6mo postoperative follow-up, it gradually recovered to the level before PRP, with no significant difference (P>0. 05).CONCLUSlON: After the treatment of PRP, it appeared a transient increase on the retinal thickness of macular fovea, but after 6mo following-up, the macular foveal retinal thickness decreased nearly to the levels before PRP.
2.Pharmacological Effects of Zhongfengkang on Model Mice with Cerebral lschemia
Yihe CHEN ; Yuye XIA ; Yuchen SHENG ;
Chinese Traditional Patent Medicine 1992;0(10):-
Objective: To study the pharmacological effects of Zhong Feng Kang on model mice with cerebral ischemia and after restoration of blood flow. Methods: To make the model of cerebral ischemia and after restoration of blood flow with thread embolism, and measure the area of cerebral infarction and observe cerebral pathologic change. Results: Zhong Feng Kang could reduce the area of cerebral infarction, improve cerebral pathologic change on model mice. Conclusion: The results confirmed that the clinical data of Zhongfengkang would provide a basis of pharmaceutical application
3.MRI features of Klippel-Trenaunay syndrome
Song ZOU ; Dong-Hui SHEN ; Xing-Sheng CHEN ; Wei-Sheng ZHANG ; Chun-Xia CHEN ;
Chinese Journal of Radiology 1999;0(10):-
Objective To observe and analyze the MRI manifestations of Klippel-Trenaunay syndrome(KTS).Methods Thirty-one cases with diagnosed KTS underwent MRI on a 1.5 T MR system. MRI,MR venography(MRV),MR angiography(MRA)and X-ray venography(XRV)were performed.The pathological changes of the limbs and their veins were observed.Results MRI found soft tissue hemangiomas in 12 cases,soft tissue swelling of the extremities in 27 cases,superficial varicosities in 21 cases,and malformation of the veins in 27 cases.In twenty patients who underwent both MRV and XRV, superficial varicosities in 17 cases and persistent sciatic veins in 11 cases were found with both techniques. The increase of tributary veins was found in 10 cases with XRV,while found in 15 cases with MRV.The erratic venous course was found in 4 cases with MRV.The abnormalities of deep veins were found in 8 cases with MRV,while found in 7 cases with XRV.Conclusion MRI is an efficient and reliable imaging method for diagnosis of KTS.
5.Histological changes of domestic e-PTFE implanted into subcutenous tissue of rat
Dong LI ; Dongming CHEN ; Sheng LI ; Xia ZHAO ; Jianning LI
Chinese Journal of Medical Aesthetics and Cosmetology 2001;0(06):-
Objective To investigate the relative histological change of transplanted domestic expanded polytetrafluoroethylene (e-PTFE), which were treated with different methods, in order to offer the referential data for clinical application. Methods e-PTFE treated with different methods was transplanted into subcutaneous tussue of rat. The samples harvested according to time sequence were examined by using histological and histochemical methods. Dynamic change of the structure between the e-PTFE and it's surrounded tissue was investigated based on the examination. Results Cell and tissue were observed on the inside of all the e-PTFE including the control group and the experiment groups. Heavy cell infiltration on the 3rd day was the most significant in control group, and the quantity of tissue ingrowth was also the most until the 28th day. The next was trimming group. The quantity of both cell infiltration and the tissue ingrowth in high pressure steamed group and forceps squeezed group were less than that in other groups. Conclusion Cell infiltration into domestic e-PTFE is significantly achieved since 72 hrs and fibrovascular ingrowth since the 7days after implanted e-PTFE under subcutaneous tissue of the rat. Different treatment methods of e-PTFE can affect the speed of tissue ingrowth into the e-PTFE, which could be a reference for clinic application of e-PTFE.
6.Signal mining for adverse drug reactions based on healthcare big data: methodology and applications
Xia ZHAO ; Yao CHEN ; Jun LIAO ; Feng YU ; Sheng LIN
Chinese Journal of Hospital Administration 2017;33(5):373-376
This paper presented the conventional methods for signal detection of adverse drug reactions (ADRs) and their applications, the research progress in ADRs signal mining based on healthcare big data, and briefed the methods and uses of ADRs prediction using machine learning technology in the era of healthcare big data.The conclusion was that deep learning, as a fast growing tool in machine learning, will become hotspot of research, expected to help with ADRs signal mining and rational clinical drug use.
8.Correction of prominent mandibular angle with aid of rapid prototyping technique
Chuan CAO ; Duo XU ; Shirong LI ; Xia DAI ; Sheng BI ; Hua CHEN ; Xia QIN ; Peng HE
Journal of Third Military Medical University 1983;0(03):-
Objective To investigate the application of computer-aided 3D reconstruction and rapid prototyping(RP) technique in the correction of prominent mandibular angle.Methods Computer tomography scanning and 3D reconstruction were performed on 15 square face patients with prominent mandibular angles,then their actual mandible models were made by RP techniques.Surgical programs were made according to the model,including partial mandibular angle osteotomy,outer mandible table sagittal splitting osteotomy,chin augmentation with autogenous mandibule bones,and so on.In 15 cases,mandibular angle partial cutting was performed in 5 cases,sagittal splitting osteotomy in 6 cases,and mandibular angle partial cutting combined with splitting osteotomy in 4 cases.The autogenous mandibule bones were transplanted for chin augmentation in 3 chin microsomia patients.All the cases were treated according to the position and range set by the RP model.Results All the mandibular models produced by RP techniques were real and complete,which could directly and precisely show the state of the mandible.The operations completed smoothly and accomplished with the expected outcomes designed before operation.In all cases,the width of lower face was efficiently reduced and the face was symmetrical after operation.The follow-up period ranged from 3 months to 1 year in 12 patients,during which their facial appearances were in good condition and the results were satisfactory.Conclusion RP techniques is helpful in precise representation of the state of mandible,which providing ideal surgical models for accurate evaluation of prominent mandibular angle,design of surgical procedures as well as surgery instruction.It can provide good assistance to facial contour plastic surgery.
9.Significance of Serum Growth Hormone-Binding Protein Detection in Children with Idiopathic Short Stature
li, CHEN ; sheng-xia, XIANG ; xiao-qing, CHEN ; ying-li, YANG
Journal of Applied Clinical Pediatrics 2006;0(20):-
Objective To explore the change of growth hormone binding protein (GHBP) in children with idiopathic short stature(ISS).Methods Thirty children with ISS from the pediatric department in the Third Hospital of Hebei Medical University and 30 age-and sex-matched normal-stature children were selected from Sep.2006 to Jun.2008.The concentration of GHBP was measured by enzyme linked immunosordent assay.Results Serum GHBP levels in ISS subjects was (3 261.0?646.3) ?g/L,while the serum GHBP levels in normal control group was (2 026.0?497.2) ?g/L,and there was statistically significant difference between both groups(t=-20.67 P
10.Expression of Survivin in T lymphocytes from allografts and its clinical significance
Bicheng CHEN ; Hui GUO ; Peng XIA ; Yong CAI ; Yirong YANG ; Zhonghua CHEN ; Sheng CHANG
Chinese Journal of Organ Transplantation 2010;31(8):492-495
Objective To investigate the expression of survivin in T lymphocytes that were stimulated by Con A and alloantigens in renal grafts in vitro and in vivo. Methods According to the different treatments, the experiment was divided into three parts. (1) The C57BL/6 mice splenocytes stimulated by Con A (10 mg/L) were cultured in the RPMI-1640 medium. Following the proliferation blockade or not, the expression of Survivin in the splenocytes was detected. (2) The GVHR model was established by transfusing the C57BL/6 mice splenocytes into Balb/c× C57BL/6 F1 mice, and the expression of Survivin in the donor splenocytes was detected at the different time points. (3) Seventythree cases of clinical renal allograft biopsy specimens were collected, pathologically diagnosed and classified according to the Banff 97 classification, and then the expression of Survivin was detected.Results Survivin was expressed in the CD3+ splenocytes that received Con A stimulation. The positive cell count reached the peak on the day 3, and subsequently declined. In the GVHR model, the lymphocytes infiltration and Survivin expression were detected around the portal vein and portal area on the post-splenocytes-transfused day (PSTD) 4 to 12. But on the PSTD 14, the Survivin expression could not be detected in the infiltrated lymphocytes. In the renal allograft biopsy specimens,lymphocytes did not express Survivin in 13 specimens of the group without acute cellular rejection.was difference between the two groups (P<0. 01 ). Conclusion The activated T cells possess the capacity to express Survivin, and the expression is time-dependent. For the characteristics of Survivin expression of T cells, it may be applied as an approach to diagnose the acute cellular rejection and judge its degree and stage in the clinical allograft biopsy specimens.