1.Research progress on thyroglobulin and its antibody
Journal of Medical Postgraduates 2017;30(8):869-872
Tg gene polymorphism, HLA and iodine interaction with Tg may be involved in the pathogenesis of autoimmune thyroid disease.Moreover, thyroglobulin antibody (TgAb), an important symbol of autoimmune thyroid disease, is also closely related to the development of autoimmune thyroid disease.In addition, the differences of TgAb IgG isoforms expression level also have broad application prospects in the classification and diagnosis of autoimmune thyroid disease.By researching on Tg, we review the pathogenesis of autoimmune thyroid disease and provided the evidence for its diagnosis and clinical treatment.
2.Preparation and identification of monoclonal antibodies against cell receptors of acute hemorrhagic conjunctivitis viruses
Li-Na LI ; Gui-Fan MU ;
Chinese Journal of Immunology 1985;0(05):-
To prepare monoclonal antibodies for blocking acute hemorrhagic conjunctivitis (AHC)viruses,BALB/C mice were immunized with Hela cells.The spleen of immunemouse was re-moved,and spleen cells were fused with SP2/0 cells.The antibodies against cell receptors wereselected by cell protection assay.Four cell strains secreted McAbs designated R7.R8.R16 andR24 were screened to be able to block cellular receptors and inhibit the infection of Ev70 as wellas CA24v on Hela cell.These results demonstrate that the receptors for Ev70 and CA24v are si-miliar.Indirect immunofluorescence test with the four McAbs showed definite fluorescence onliving Hela cells,which the intensity was concordance with the mean intensity resulted fromflowcytometer.Positive reaction on fixed Hela cells were only observed with R7 and R8.
3.Progress of dose fraction in radiotherapy for non-small cell lung cancer
China Oncology 2001;0(05):-
Radiotherapy is one of the main treatment options for patients with advanced limited non small cell lung cancer.From the viewpoint of radiobiology,the change of fractionation schedule in radiotherapy might improve the therapeutic effect.There are many different methods of fractionated irradiation: from conventional radiation including hyperfractionated radiotherapy,accelerated radiotherapy and hypofractionated radiotherapy,etc.In this paper,we summarized the definition of the different types of fractionated irradiation, and its clinical application.
5.Combination of fMRI and DTI in the Assessment of Cortical Visual Impairment in the Children with Periventricular Leukomalacia
Na LIU ; Guoguang FAN ; Bing YU ; Songbai LI
Chinese Journal of Medical Imaging 2009;(6):401-405
Purpose:To investigate fMRI and DTI in the assessment of cortical visual impairment in children with periventricular leukom-alacia ( PVL).Materials and Methods: Twenty-four children with PVL were enrolled.Meanwhile,24 age-matched normal controls were recruited for comparison.fMRI scan was performed using a 3.0T MR scanner.Data analysis was performed by statistical parametric mapping software (SPM2).Activated voxels were identified in both groups,t test was used for statistical analysis.DTI was performed by MedlNRIA software and DTI color maps were created from fractional anisotropy (FA) values and the three vector elements,FA values on diffusion tensor color maps were compared between the patients and the controls.AH the FA values of these WM fibers were analyzed by paired t test.The correlation was calculated between FA values and activated voxels of visual cortex for PVL children using SPSS10.0.Results: In all 24 normal children,the maximum response of blood oxygen level-dependent (BOLD) signal was located in the primary visual cortex ( PVC).However,some of the 24 cases of PVL had deviated activation.The active voxels of patients in visual cortex were less than that of controls.All 24 cases of PVL showed a significant mean FA reduction in ICPL and PTR in comparison to the ipsilateral regions of healthy controls.The significantly positive correlation was shown between FA values and activated voxels of visual cortex for PVL children.Conclusion:fMRI and DTI play an important role in the assessment of cortical visual impairment in children with PVL.
6.Comparison of the intrusion effects on the maxillary incisors between implants and conventional method:a Meta-analysis
Shan PAN ; Jianxia LI ; Bi NA ; Henglang LIU ; Xiaoping FAN
Chongqing Medicine 2014;(7):788-792
Objective To objectively evaluate the intrusion effects on the maxillary incisors of implants versus conventional method(J-hook headgear ,utility arch) .Methods Such online databases as Cochrane library ,PubMed ,EMbase ,VIP ,Wanfang and CNKI were searched by randomized control test and prospective case controlled study about implants vs conventional anchorage for the maxillary incisor intrusion .After study selection ,assessment and data extraction conducted ,meta-analyses were performed by u-sing the RevMan 5 .1 software .Results Totally 11 studies were included ,6 studies involving 154 patients were included in the J-hook headgear group ,5 studies involving 127 patients were included in the utility arch group .The results of meta-analyses showed that :(1)Compared with the J-hook headgear ,implants had more decrement in the distance of upper center incisior cutting to palatal plane(P<0 .001) ,more decrement in overbite(P=0 .001) ,shorter treatment time (P<0 .001) ,less increase in SN-OP angle(P=0 .004) ,less decrement in distance of maxillary molar cusp to palatal plane (P=0 .020);There was no statistically significant differ-ence in overjet ,root resorption(P>0 .05) .(2)Compared with the utility arch ,implants had more decrement in the distance of the center of resistance of the upper incisor to palatal plane (P=0 .010) ,less increase in U6-PP angle (P<0 .001);There was no statis-tically significant difference in the distance of upper center incisior cutting to palatal plane ,U1-PP angle ,the distance of upper first Molar cutting to palatal plane ,sagittal position of the mesial tip of the upper first Molar ,overbite ,overjet ,course of treatment ,root resorption(P>0 .05) .Conclusion The implants anchorage intruded the maxillary incisor was better than conventional method (J-hook headgear ,utility arch) ,it has more incisor intrusion ,shorter treatment time and more comfortable for the patients ,there was no difference in root resorption between the two groups .
7.Study on the anti-tumor effects of the sonicate sensitized DC vaccine in vitro
Yanyun XIE ; Weiping FAN ; Na LI ; Xiaojuan YUAN ; Xia PENG
Cancer Research and Clinic 2010;22(10):663-665
Objective To explore the cytotoxicity of the cytotoxic T lymphocyte (CTL) induced by SW480 sonicate sensitized dendritic cells (DC) on the colon cancer cell line SW480. Methods PBMC were separated from the HLA-A*0201 donor and DC were cultured with rhGM-CSF, rhIL-4 and rhTNF-α. The same donor's primary CTL were stimulated by DC loaded with SW480 sonicate. The cytotoxicity of CTL on SW480 (HLA-A*0201 positive) and K562 (HLA-A*0201 negative) was determined by the MTT method. Results The cytotoxicity of the CTL on SW480 was stronger than that on K562 (P <0.05). Conclusion The DC vaccine can stimulate specific CTL which can trigger cytotoxic activity on the target cells and this cytotoxicity is related to MHC restriction.
8.Effects of androgen on autoimmune ovary failure of mouse
Xiaobo SHI ; Na LI ; Qiuhua LIN ; Can LIAO ; Liqing FAN
Basic & Clinical Medicine 2006;0(07):-
Objective To identify the effects of androgen on mouse model of autoimmune ovary failure.MethodsFifty mice were randomly divided into five groups as control group,early therapeutic group and its model group,late therapeutic group and its model group.Autoimmune POF was induced in forty mice by Pzp3.Then,the animals were randomly divided into four groups: two were treated with androgen from the 15th and 20th day after immune.The control group was treated with distilled water.The therapeutic efficacy of each treatment was evaluated by the changes in sexual cycles of mice,the serum level of AzpAb,infiltration of cells positively expressing CD45 in the ovary as well as the percentage of growing follicles of the ovary.Results The sexual cycles,serum level of AzpAb,infiltration of CD45 cells in the ovary of each model group were more significant than those in control group;early therapeutic group was less than model group;and serum level of AzpAb in early therapeutic group was lower than that of late therapeutic group.The percentage of growing follicles in the ovary of each model group was lower than that of control group;early therapeutic group was higher than model group and late therapeutic group.Conclusion The use of androgen in mice with autoimmune POF may notably ameliorate the pathogenetic conditions of the disorder,and the treatment during prophase was apparently more effective than that during the advanced stage.
9.Clinical analysis of methylmalonic acidemia in 21 children
Fan LI ; Junying QIAO ; Jianchuang ZHAO ; Xianjie HUANG ; Na WANG
Journal of Clinical Pediatrics 2017;35(5):359-362
Objective To explore the clinical features of methylmalonic acidemia (MMA) in children admitted to the pediatric intensive care unit, to help improve our understanding of MMA. Methods The clinical data of 21 patients with MMA admitted to our PICU from December 2012 to August 2016 were analyzed. Diagnosis were confirmed by gas chromatography-mass spectrometry, GC/MS. Results twenty-four of 158 suspected cases were confirmed as having organic acidemia diseases including 21 cases of MMA, one case of propionic acidemia, one case of urea cycle disorders, and one case of glutaric acidemia. The main clinical manifestations were feeding difficulty, malnutrition (13 cases), developmental retardation (12 cases), lethargy (10 cases), tricuspid severe reflux and pulmonary hypertension (1 case), hydrocephaly (5 cases), muscular dystonia (three cases with hypertonia, and four with hypotonia), convulsion (7 cases), apnea, sobbing respiration (10 cases), chromatosis (6 cases), anemia (13 cases), edema (6 cases), thrombocytopenia (6 cases), hematuria and proteinuria (2 cases). Five cases gave up therapy before diagnosis was made. Sixteen cases received the treatment with Vitamin B12 and supplementation of L-carnitine. Seven cases gave up after treatment without effect or deterioration of condition. Eight cases were vitamin B12-responsive, and one case was vitamin B12-nonresponsive. The follow-up for a period ranging from three months to two years, among eight vitamin B12-responsive cases, 6 cases showed a favorable outcome with apparent improvement, one case had no symptom and one patient died from severe pneumonia. Vitamin B12-nonresponsive case was still alive. Conclusions The clinical manifestations of MMA are non-specific. Urine organic acid analysis is critical to early diagnosis of MMA in high-risk patients. Timely diagnosis and appropriate long-term treatment are essential to improve the prognosis of the disease.
10.Dynamic changes of NT-3 and FGF in hippocampus and thalamus after cerebral ischemia reperfusion in vascular dementia rats
Aili LI ; Gang ZHOU ; Enxue FAN ; Na LIU
Journal of Jilin University(Medicine Edition) 2006;0(01):-
Objective To investigate the correlations between vascular dementia and neurotrophin-3 (NT-3), fibroblast growth factor (FGF). Methods Female and male Wistar senile rats were divided into the control group and the operation groups at random. The operation groups consisted of the cerebral ischemia 15 min group and ischemia 15 min reperfusion groups in which the rats were reperfused at 0, 1st, 6th hour and on 2nd, 4th, 9th day with five rats per group. The expressions of NT-3 and FGF in hippocampus and thalamus were examined in different periods of ischemia-reperfusion with ABC method of immunohistochemistry. Results There was a little expressions of NT-3 and FGF in hippocampus and thalamus of normal senile rats; the expression of NT-3 in hippocampus increased quickly and steadily from 1 h to 4 d after ischemia-reperfusion! there were significant differences compared with control group (P0. 05). The expression of FGF in hippocampus increased from 6 h to 2 d after ischemia-reperfusion (P 0. 05). FGF in thalamus began to increase on 2nd day after ischemia-reperfusion and there were significant differences compared with control group (P0. 05). Conclusion Hippocampus has the protective mechanism of NT-3 and FGF against ischemia injury which is produced quickly and has endurable effects, but thalamus lacks the good protective mechanism of NT-3 and FGF.