1.Research progress of primary open angle glaucoma, 24h intraocular pressure and ocular perfusion pressure
International Eye Science 2016;16(6):1067-1070
Primary open angle glaucoma ( POAG) is one of the eye diseases which can lead to blindness. The early symptom of POAG is unconspicuous, however, it will result in irreversible optic never damage and visual field defect with the disease progress. As an index for diagnosing and evaluating the therapeutic effect of POAG, intraocular pressure ( IOP ) is simple and important. Clinically, although some treated patients have a target IOP at clinic time, the optic never damage still get worse. Researches indicate that higher nocturnal IOP and 24h IOP variation and lower nocturnal ocular perfusion pressure ( OPP) may be the reasons for this phenomenon. The following essay will give an overview of POAG,IOP and OPP according to the relevant literatures so that we can have a better understanding.
2.Analysis of the characteristics of juvenile primary Sj(?)gren's syndrome with renal damage
Jin-Li RU ; Xiao-Feng ZENG ; Li-Min ZHANG ; Jin-Chang HE ; Jia ZHU ;
Chinese Journal of Rheumatology 2001;0(05):-
Objective To study the renal damage of patients with juvenile primary Sjgren's syndrome (pSS)and its clinical manifestations,pathologic characteristics with biopsy,treatment and prognosis.Methods Ten patients with juvenile pSS complicated with renal impairments were retrospectively analyzed.Data of these 10 patients were compared with those without renal impairments.Results Ten patients complicated with renal impairments in 24 patients with juvenile pSS,9 of them presented with type I renal tubular acidosis(RTA), 5 with hypokalemia paralysis,3 with calcification of the renal tissue,3 with positive urine protein.1 with dia- betes insipidus.There was no significant difference between patients with renal impairments and those without. Three patients underwent kidney biopsy that showed chronic interstitial nephritis(CIN)with extensive lymp- hoplasmie cell infiltration.Two patients had glomerular lesions and one of them was diagnosed as pSS over- laped with systemic lupus erythematosus(SLE).Steroid and immunosuppressive agents had significantly alle- viated symptoms and the hypergammaglobulinemia was significantly improved.Conclusion Renal impairment may be the major complication in juvenile pSS.The major clinical manifestations are RTA and the glomeruli are involved occasionally.Treatment with steroid anti immunnsuppressive agents should be given to those who have evidence of systemic involvement.
3.Expression and activity detection of novel humanized anti-CD20 monoclonal antibodies
Ru JIA ; Yanwen JIN ; Ping LI ; Xuan LIU ; Ting GAO ; Zijing LIU ; Cheng CAO
Military Medical Sciences 2014;(11):875-878
Objective To construct humanized monoclonal antibodies against CD 20 and check their affinity to CD 20 antigen and their anti-tumor activity.Methods Based on the computer model , human IgG1 candidates closest to rituximab in crystal structure were selected in the Protein Data Bank ( PDB) .With the selected human IgG 1 candidates as the frame , we modified and transplanted the complementarity determining region ( CDR) of rituximab .First,the target gene fragments were obtained by overlapping PCR.Then, the sequences of the light chains(L) and the heavy chains(H) were inserted in-to the pcDNA3.3 and pOptiVEC vectors.Next, the constructed clones were transfected into 293F cells through transient transfection.After a large-scale cell culture, the mAb was purified by affinity chromatography rProtein A column.The puri-ty and expression level of the humanized antibodies was tested by sodium dodecyl sulfate ( SDS)-polyacrylamide gelelectro-phoresis(PAGE).The affinity of the humanized antibodies to CD20 was assessed with Fortebio assay.Finally, the anti-tumor activity of the constructed antibodies was detected by checking the tumor growth inhibition of the nude mice transplan-ted with tumor .Results Three humanized monoclonal antibodies against CD 20 were expressed and purified successfully . In reducing SDS-PAGE, the antibodies exhibited two bands of approximately 25 ×103 and 55 ×103 , respectively.The band size of the antibodies matched the expected value.Fortebio assay revealed that the humanized antibodies could bind to CD20 with high affinity (rituximab:6.48 ×10 -9mol/L, L4H7:1.91 ×10 -9mol/L, L5H5:7.35 ×10 -10mol/L,and L5H7:1.91 ×10 -9mol/L).The tumor growth inhibition experiment showed that the anti-tumor activity of L5H7 mAb was better than that of rituximab .Conclusion Three humanized monoclonal antibodies against CD 20 have been successfully construc-ted and expressed.L5H7 mAb possesses high affinity for CD20 and a good ability to kill tumor cells.
4.Therapeutic effects of FuZhiSan on Alzheimer's disease rat model:evaluation with PET imaging
Zhe, GUO ; Jin-ming, ZHANG ; Shu-lin, YAO ; Hui-ru, FENG ; Xu-ling, LI ; Da-yi, YIN ; Jia-he, TIAN
Chinese Journal of Nuclear Medicine 2010;30(4):246-250
Objective To assess the feasibility of using PET molecular imaging to evaluate the therapeutic effects of traditional Chinese medicine FuZhiSan (FZS) on the model of aging Alzheimer's disease (AD) rats. Methods Twenty aged AD rats (Sparague-Dawley rats,male) were randomly divided into FZS treated group (n = 10) and control group (n = 10). Another 10 healthy adult rats were as blank controls. Morris water maze record system was used for cognitive function assessment. Before and after FZS treatment 18 F-fluorodeoxyglucose (FDG) and 11 C-2- [4'-(methylamino) phenyl] benzothiazol-6-ol ( PIB )PET imaging was undertaken. After post-treatment imaging procedures the brain tissues of all animals were taken for histochemical study,such as staining with HE,congo red,amyloid β (Aβ) immunofluorescence,5-bromo-2-deoxyuridine (BrdU) immunofluorescence and NeuN immunofluorescence. Paired t-test was performed with SPSS 13.0 software for the data analysis. Results The cognitive dysfunction of aging AD rats was improved after FZS treatment. The escape latency in FZS treated group was significantly shorter than that of control group ((32.5 ±10.8) s vs (102.6±8.8) s,t =15.7987,P=0. 0001). Diffuse neuronal loss and Aβ deposition were detected in the hippocampus and cortex in the aged AD rats. The imaging data showed that brain glucose metabolism was amended in FZS treated group while the abatement of amyloid deposition was not significant. Immunofluorescence results indicated that the neuronal proliferation was more remarkable in FZS treated group. Conclusions It may be feasible to use PET imaging as a method to evaluate the therapeutic effect in AD rats. FZS may ameliorate memory dysfunction of aged AD rats. Its mechanism may be partly contributed to the enhancement of the neuronal proliferation and survival.
5.Advance in Clinical Evaluation Methods of Facial Paralysis(review)
An Yong DENG ; Kui Jia GUO ; Dong Jin YU ; Ping Dong WANG ; Gang Xi SUN ; Ru Cui LIN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(12):1407-1410
The clinical evaluation methods of facial paralysis can be divided into functional evaluation scales,neuro-electrophysiologi-cal tests and computer evaluation systems.The commonly used function evaluation scales include House-Brackmann Grading Scale(HB-GS),Burres-Fisch Facial Nerve Scoring System,Nottingham System,Sunnybrook facial grading System(SFGS),Degree of Facial Nerve Paralysis Hierarchical Scale,Facial Disability Index(FDI)and Facial Clinimetric Evaluation(FaCE)Scale,etc.Neuro-electrophysiological tests mainly consist of facial electromyography (EMG), electroneurography (ENoG), blink reflex (BR), and neural excitatory test (NET), etc.The computer evaluation system based on the sensor is mainly divided into the computer evaluation system based on infrared thermal image technology and the computer evaluation system based on biomedicine image recognition.This article briefly summarized the existing methods of facial paralysis evaluation in terms of sensitivity,stability,accuracy,ease of operation and economics.
6.Effectiveness of sirolimus-eluting stents in emergency percutaneous coronary intervention
Ru-Hui LIU ; Ming-Zhong ZHAO ; Yang LIU ; Wen-Lin MA ; Bing DENG ; Jia-Hong XU ; Jin-Fa JIANG ; Da-Yi HU ;
Chinese Journal of General Practitioners 2005;0(12):-
Objective To observe the efficacy and safety of applying sirolimus-eluting stents in emergency percutaneous coronary intervention (PCI) for the patients with acute myocardial infarction (AMI).Methods In total,220 patients with AMI were enrolled in this study at Shanghai Tongji Hospital, divided into two groups,one with bare-metal stent and the other with sirolimus-eluting stent.Cardiovascular fatality,major adverse cardiac events (MACE) and target vessel revascularization (TVR) were observed one and six months after PCI in the two groups.Results There was no significant difference in overall fatality and MACE in the 1~(st) or 6~(th) months after PCI between the two groups.Three cardiogenic deaths occurred in bare-metal stent group with a fatality of 2.8 percent,and five deaths in sirolimus-eluting stent group with a fatality of 4.5 percent in six months after PCI.However,rate of restenosis in those with sirolimus-eluting stents was significantly lower than that of bare-metal stents (6.0 percent vs 16.1 percent,P
7.Clinical experience on postoperative balance of hemostasis and antithrombus for patients with hemophilic arthritis after arthroplasty.
Jia-Fei PAN ; Xiao-Bing CHU ; Ru-Jie ZHUANG ; Li ZHOU ; Hong-Ting JIN ; Cheng-Liang WU ; Lu-Wei XIAO ; Pei-Jian TONG
China Journal of Orthopaedics and Traumatology 2015;28(3):268-271
OBJECTIVETo observe the clinical significance of postoperative personalized antithrombotic therapy for patients with hemophilic arthritis (HA) patients after arthroplasty.
METHODSFrom September 2005 to October 2013, 11 cases of arthroplasty for hemophilic arthritis in hip and knee total operation 14 times,including 1 case of double knees (calculated as one operation), operation in left knees 6 times, operation in right knees 5 times, 2 in hip. All the patients were male and the age ranged from 23 to 57 years old,with an average of (36.1 ± 11.0) years old; the average weight was (64.1 ± 8.9) kg. All the patients were preoperatively diagnosed and classified as hemophilic arthritis with the radiological images and laboratory tests. According to the function of joints, the risk of postoperative venous thromboembolism (VTE), and dynamic observation of Factor VIII:C (FVIII:C) activity, patients were treated with personalized antithrombus by adjusting the dosage of recombinant human coagulation factor VIII (Kogenate FS). All the patients were orderly divided into postoperatively distal joints moving group and none-moving group to observe the coagulation function.
RESULTSThe enrolled patients had no postoperative complication of VTE and pulmonary embolism (PE). The APTT and D-2 were different between two groups in the postoperative early stage. Length of hospital day was shorter in the moving group than none-moving group.
CONCLUSIONBecause of the self-coagulation disorder, patients with HA tended to bleed. However it doesn't mean that there is no risk of postoperative thrombosis. Therefore,it's important to determine how to control the balance between postoperative antithrombus, hemostasis,and coagulation factor replacement therapy after arthroplasty for HA. Postoperative moving has proved helpful for HA, especially in reducing the risk of hemostasis and shortening the time in hospital.
Adult ; Arthritis ; surgery ; Arthroplasty ; adverse effects ; Factor XIII ; metabolism ; Hemophilia A ; complications ; Hemostasis ; Humans ; Male ; Middle Aged ; Postoperative Complications ; prevention & control ; Thrombosis ; prevention & control ; Young Adult
8.Dysbiosis of lung commensal bacteria in the process of lung epithelial-mesenchymal transition in mice with silicosis
China Occupational Medicine 2022;49(05):514-
Objective -
To investigate the effect of lung flora dysbiosis on the process of pulmonary fibrosis and lung epithelial
( ) Methods -
mesenchymal transition EMT in mice with silicosis. Male C57BL/6 mice of specific pathogen free grade were
, , , ( )
randomly divided into the blank control group silicosis model group solvent control group vancomycin VM + ampicillin
( ) , ( ) ( ) ,
AMP group metronidazole MNZ + neomycin NEO group and mixed treatment group 12 mice in each group. Except for
, ,
the blank control group which was given 20.0 µL of 0.9% NaCl solution the other five groups of mice were dosed with 20.0 µL
of silica dust suspension at a mass concentration of 250.0 g/L using a single tracheal drip to establish the silicosis mouse model.
:
The intranasal drip method was used to treat silicosis mice in each group as following mice in the solvent control group were
- ; ;
given double distilled water mice in the VM+AMP group were given VM at a mass concentration of 0.5 g/L and AMP at 1.0 g/L
;
mice in the MNZ+NEO group were given MNZ at a mass concentration of 1.0 g/L and NEO at 1.0 g/L mice in the mixed
,
treatment group were given the same doses of the four antibiotics mentioned above all in a drip volume of 50.0 µL. Silicosis
, ,
mice were treated seven days and half an hour before silica dusting and 7 14 and 21 days after silica dusting. Mouse lungtissue was collected aseptically 28 days after silica dusting. Hematoxylin eosin and Masson trichrome staining methods were
-
used to observe the pathological changes. Western blotting was used to detect the relative protein expression of α smooth muscle
( - ), - ( - ) ( )
actin α SMA E cadherin E CAD and vimentin VIM . Immunohistochemistry was used to detect the relative expression of
- -
E CAD and VIM. Real time fluorescence quantitative polymerase chain reaction was used to detect the expression levels of
(Col1a2) Results
collagen type Ⅰ alpha 2 mRNA in lung tissues. The histopathological results showed that the alveoli of the
,
blank control group were thin and structurally intact with few surrounding infiltrating inflammatory cells and no abnormal
,
distribution of collagen fibers. The alveoli of the silicosis model group were structurally disorganized with a large number of
, ,
infiltrating inflammatory cells thickened alveolar walls and cellular fibrous nodules with abundant blue collagen deposit. In the
, ,
VM+AMP group MNZ+NEO group and the mixed treatment group the inflammation and fibrosis were reduced with diferent
degrees in the lung tissues compared to the silicosis model group and the solvent control group. The relative expression levels of
- , Col1a2
α SMA VIM protein and mRNA in lung tissues of mice in the silicosis model group were higher than those in the blank
( P ), -CAD
control group all <0.05 and the relative expression levels of E protein were lower than those in the blank control
(P ) - , Col1a2
group <0.05 . The relative expression levels of α SMA VIM protein and mRNA in lung tissues of mice in the MNZ+
( P ), -CAD
NEO group and the mixed treatment group were lower all <0.05 and the relative expression levels of E protein were
(P ), Conclusion
higher <0.05 when compared with the silicosis model group and the solvent control group. Pulmonary fibrosis
, -
was reduced in silicosis mice with interventions in lung flora where anaerobic and gram negative bacteria affected pulmonary
fibrosis and dysbiosis of the lung flora affected pulmonary EMT.
9.Clinical and molecular-biological study of a May-Hegglin anomaly family.
Xiu-ru SHAO ; Jia-zeng LI ; Jun MA ; Zhao-min ZHAN ; Hong LIANG ; Xi-nan SHE ; Hai-ling LU ; Lai-ci WANG ; Chui-ming JIA ; Li-jie WU ; Ming-hua JIN ; Li-jun CHEN
Chinese Journal of Hematology 2004;25(9):548-551
OBJECTIVETo study the changes of platelet in May-Hegglin anomaly (MHA) and the molecular pathogenesis mechanism.
METHODSPeripheral blood was drawn from the MHA proband, her father and her uncle. Platelet count and morphology were examined by automatic blood cell counter and microscopy, respectively. The platelet membrane protein was examined by flow cytometry. Membrane antibodies were determined by ELISA. PCR was used to amplify the exons 25, 31 approximately 32, 38 and 40 of the MYH 9 gene in the MHA patient and her diseased father. Furthermore, PCR products were sequenced, a specific point mutation was identified and inclusions (Dohle's body) in the neutrophil was detected by indirect immunofluorescence technique.
RESULTSIt was proved that in MHA patients, platelet count was higher by cell counter than by microscope (P < 0.01). Giant platelet was 94% but platelet membrane proteins (CD41, CD61, CD42A, CD42b) were in normal range. Membrane antibodies was undetectable. An A5521G mutation (GAG-->AAG) in the exon 38 was found in the proband and her diseased father, resulting in a characteristic change of NMMHC-A1841 (Glutamic acid-->Arginine), which was not found in other members of the family and in normal controls. Spindle-like inclusions with fluorescence were clearly displayed in neutrophil cytoplasm.
CONCLUSIONThe molecular pathogenesis mechanism of May-Hegglin anomaly is the mutation in MYH 9 gene.
Adult ; Base Sequence ; Blood Platelets ; metabolism ; pathology ; DNA Mutational Analysis ; Enzyme-Linked Immunosorbent Assay ; Female ; Flow Cytometry ; Granulocytes ; metabolism ; pathology ; Humans ; Inclusion Bodies ; metabolism ; pathology ; Male ; Molecular Motor Proteins ; genetics ; Mutation ; Myosin Heavy Chains ; genetics ; Pedigree ; Platelet Count ; Platelet Membrane Glycoproteins ; metabolism ; Thrombocytopenia ; blood ; genetics ; pathology
10.A 26-year clinical observation of splenic auto-transplantation and oesophageal transection anastomosis: a new treatment strategy in patients with portal hypertension.
Lei ZHANG ; Jin-shan HUO ; Hong-wei ZHANG ; Ru-fu CHEN ; Jie ZHANG ; Obetien MAPUDENGO ; Tian-lin FANG ; Ya-jin CHEN ; Qing-jia OU ; Ji-sheng CHEN
Chinese Medical Journal 2007;120(6):452-457
BACKGROUNDSurgical treatment options for patients with cirrhosis and portal hypertension are complicated. In this study, we evaluated the effectiveness of a new treatment strategy, splenic auto-transplantation and oesophageal transection anastomosis. We report results from clinical observations, splenic immune function and portal dynamics in 274 patients.
METHODSFrom 1979 to 2005, 274 cirrhosis patients with portal hypertension underwent the new treatment strategy, and were followed up to compare results with those patients who underwent traditional surgical treatment. From 1999 to 2002, a randomized controlled trial (RCT) was performed on 40 patients to compare their post-operative immune function. From 1994 to 2006, another RCT enrolled 28 patients to compare portal dynamics using three-dimensional dynamic contrast-enhanced magnetic resonance angiography (3D DEC MRA) investigation post operation.
RESULTSAmong 274 patients (mean age 41.8 years), the emergency operative mortality (4.4%), selective operative mortality (2.2%), complication rate (17.9%), prevalence of hepatic encephalopathy (< 1%), rate of portal hypertension gastritis (PHG) bleeding (9.1%), and morbidity of hepatic carcinoma (8%) were similar to those patients undergoing traditional operation; the spleen immunology function (Tuftsin, IgM) decreased in both groups 2 months post operation, but this decrease did not reach statistical significance. Through 3D DCE MRA, the cross sectional area and the velocity and volume of blood flow of the main portal vein decreased significantly after operation in both groups. The velocity and volume of blood flow in the auto-transplantation group was significantly lower than that in the control group.
CONCLUSIONSSplenic auto-transplantation and esophageal transection anastomosis is a safe, effective, and reasonable treatment strategy for patients with portal hypertension with varicial bleeding. It not only can correct hypersplenism, but may also achieve complete hemostasis. Spleens auto-transplanted into the retroperitoneal space can preserve immune function and establish broad collateral circulation.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anastomosis, Surgical ; Child ; Esophagus ; surgery ; Female ; Humans ; Hypertension, Portal ; immunology ; surgery ; Imaging, Three-Dimensional ; Immunoglobulin M ; blood ; Male ; Middle Aged ; Prospective Studies ; Spleen ; transplantation ; Transplantation, Autologous