1.Blood γ/δΤ cells′ expression,effect and receptor polymorphism in systemic lupus erythematosus
Wen ZHANG ; Naizheng ZHANG ; Weizheng CHEN
Chinese Journal of Rheumatology 2001;5(2):91-94
Objective To make clear the expression,role and receptor polymorphism of γ/δ T cells in peripheral blood in systemic lupus erythematosus (SLE).Methods Total γ/δ T cells,Vγ1 and Vγ9/Vδ2 subsets in peripheral blood of 12 normal controls,12 active and 12 stable SLE patients was examined by using cytometry assay.Then,peripheral blood mononuclear cells (PBMC) were stimulated with γ/δ specific antigen.TCR γ/δ receptor expression and Vδ2 chain CDR3 (complementary determination region) length display analysis were investigated further in these patients using SSCP method.Results The number of γ/δ T cells were remarkably decreased in active SLE patients,and the γ/δ T cells did not show proliferation after antigen stimulation in SLE.Vδ2 was expressed in all of the SLE patients.CDR3 of Vδ2 genes was polyclonally displayed.Conclusion This result adds more weight to the protective role of γ/δ T cells in SLE.It is postulated that γ/δ T cells might have deficient function and act as suppressor T cells.But it appears that there are no specific antigens that stimulate γ/δ T cells to proliferate leading to the occurrence of SLE.
2.Blood ?/? ? cells′ expression,effect and receptor polymorphism in systemic lupus erythematosus
Wen ZHANG ; Naizheng ZHANG ; Weizheng CHEN
Chinese Journal of Rheumatology 2001;0(02):-
Objective To make clear the expression,role and receptor polymorphism of ?/? T cells in peripheral blood in systemic lupus erythematosus (SLE).Methods Total ?/? T cells,V?1 and V?9/V?2 subsets in peripheral blood of 12 normal controls,12 active and 12 stable SLE patients was examined by using cytometry assay.Then,peripheral blood mononuclear cells (PBMC) were stimulated with ?/? specific antigen.TCR ?/? receptor expression and V?2 chain CDR3 (complementary determination region) length display analysis were investigated further in these patients using SSCP method.Results The number of ?/? T cells were remarkably decreased in active SLE patients,and the ?/? T cells did not show proliferation after antigen stimulation in SLE.V?2 was expressed in all of the SLE patients.CDR3 of V?2 genes was polyclonally displayed.Conclusion This result adds more weight to the protective role of ?/? T cells in SLE.It is postulated that ?/? T cells might have deficient function and act as suppressor T cells.But it appears that there are no specific antigens that stimulate ?/? T cells to proliferate leading to the occurrence of SLE.
4.Effects of hirudo capsules on platelet activation and blood rheology in patients with cerebral arteriosclerosis
Shaoyun WEN ; Qiuyue CHEN ; Danhong ZHANG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2014;26(2):91-94
Objective To observe the effects of hirudo capsules on degree of platelet activation and blood rheology in patients with cerebral arteriosclerosis. Methods 122 patients with cerebral arteriosclerosis were randomly divided into two groups by the random number table:observation group(61 cases)and control group (61 cases). The two groups received conventional treatment such as antihypertensive and hypoglycemic drugs,and 100 mg of aspirin once a day. In the observation group,additionally hirudo capsules 0.75 g,3 times a day were given. The therapeutic course in both groups was 2 months. Prior to the start of treatment and on the next day after the end of treatment,traditional Chinese medicine(TCM)clinical syndrome integral,platelet membrane glycoproteins caspase 1 (PAC-1),platelet adhesion molecule P selection(CD62P)positive rate,and blood rheology indexes were detected,in addition to the adverse reactions . Results Before treatment,there were no statistical significant differences between the two groups in terms of TCM clinical syndrome integral such as headache,dizziness,head fullness,multiple somnolence amnesia,lip dark purple,sublingual veins purple in color,PAC-1,CD62P positive rate,hemorheology indexes(all P>0.05). After treatment,TCM clinical syndrome integral PAC-1,CD62P,low shear viscosity,high shear viscosity,plasma viscosity and the hematocrit of two groups were significantly lower than those before treatment, the improvement in observation group being more remarkable〔headache:0.75±0.69 vs. 1.23±0.92,dizziness:0.96±0.78 vs. 1.54±1.24,head fullness:0.65±0.59 vs. 1.48±1.17,multiple somnolence amnesia:0.77±0.72 vs. 1.69±1.14,lip dark purple:0.83±0.81 vs. 1.32±0.79,sublingual veins purple:0.84±0.67 vs. 1.20±0.74, PAC-1:(10.31±4.57)%vs.(15.13±6.27)%,CD62P:(11.39±5.24)%vs.(16.40±7.91)%,low shear viscosity (mPa?s):7.52±3.37 vs. 8.97±3.50,high shear viscosity(mPa?s):4.35±1.12 vs. 5.58±1.19,plasma viscosity (mPa?s):1.54±0.35 vs. 1.88±0.42,hematocrit(HCT):0.43±0.09 vs. 0.49±0.10〕. In the patients' follow-up, there were no obvious side effects of hirudo capsules. Conclusion Hirudo capsule is a safe and effective drug for treatment of patients with cerebral arteriosclerosis as it is helpful in reducing platelet activation degree and improving the blood rheology indexes.
5.Medial epicanthoplasty by using palpebral margin incision
Han ZHANG ; Wen CHEN ; Wenzhong LIU
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(3):174-176
Objective To introduce a new method for correction of epicanthal folds, which could avoid obvious scar in medial canthus. Methods First, through upper and lower palpebral margin incisions, the connective and orbicularis oculi muscle dense fibers underlying epicanthal folds as well as the superficial head of medial canthal ligament were thoroughly released and excised. After repositioning the medial canthus, the redundant skin tissue was removed and then the incisions closed. Results 122 epicanthoplasties had been performed. Postsurgical scars were invisible in all cases. All patients were satisfied with operation results. No recurrence of epicanthal fold was observed. Conclusions The introduced method has advantages in avoiding scar formation and is an especially suitable approach for epicanthoplasty in Asian patients.
8.Causes and preventive measures of upper gastrointestinal bleeding in hyperbaric oxygen therapy for patients with severe closed craniocerebral injury
Bin CHEN ; Shenzhong QIU ; Wen ZHANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(6):380-382
Objective To investigate the causes and preventive measures of upper gastrointestinal bleeding in hyperbaric oxygen therapy for patients with severe closed head injury.MethodsThe clinical data of 24 cases of patients with upper gastrointestinal hemorrhage treated by hyperbaric oxygen therapy in the first people's Hospital of Fuyang District Hangzhou from May 2011 to May 2016 were analyzed, the occurrence time and clinical effect of upper gastrointestinal bleeding were analyzed.ResultsAmong the 24 cases of patients, 14 cases were treated for the first time that overt bleeding, including bleeding from the stomach liquid outflow of blood from 2 cases, gastric outflow 2 cases, hemorrhage after cure again received hyperbaric oxygen therapy 3 times again dominant bleeding 2 cases;6 cases hyperbaric oxygen treatment for third, 7, 10 times brown liquid or bloody fluid from the stomach outflow;4 cases hyperbaric oxygen treatment in patients with second and 3 courses of coffee liquid from the outflow tube, which accounted for 58.3%, 25.0%, 16.7% of the total, retrospectively;8 cases were with good recovery, 10 cases moderate disability, 4 cases severe disability, 2 cases vegetative state, 0 case died, the good recovery rate was 33.3%.ConclusionNot correctly grasp the time of hyperbaric oxygen therapy in the treatment of patients with severe closed craniocerebral injury will cause upper gastrointestinal hemorrhage, correct application of H2 receptor binding agent, developing targeted therapy programme can effectively prevent and treat upper gastrointestinal bleeding, so is worthy of the clinical's full attention.
9.Observation on the treatment of psoriasis vulgaris with narrow-band ultraviolet B and traditional Chinese medicine fumigating
Hong CHEN ; Jianbo ZHANG ; Jingai WEN
International Journal of Traditional Chinese Medicine 2010;32(3):249,258-
Objective To observe the treatment of psoriasis vulgaris with narrow-band ultraviolet B and self-made traditional Chinese medicine fumigating.Methods A total of 100 patients with psoriasis vulgaris were randomly recruited into a treatment group and a control group,50 patients in each group.The control group was treated with narrow-band ultraviolet B:on this basis,the treatment group was treated with self-made traditional Chinese medicine fumigating.The therapeutic effeCts of both groups were observed.Results As compared with the control group.the treatment group showed better therapeutic effects(P<0.05).Conclusion It was effective to treat psoriasis vulgaris with narrow-band ultraviolet B combined with self-made traditional Chinese medicine fumigating.
10.Evaluating and refitting the simplified equation of MDRD to predict glomerular filtration rate in Chinese patients with chronic kidney disease
Hao SHI ; Nan CHEN ; Wen ZHANG
Chinese Journal of Practical Internal Medicine 2001;0(09):-
Objective To evaluate the applicability of the simplified equation of MDRD to predict glomerular filtration rate(GFR)from serum creatinine in Chinese patients with chronic kidney disease(CKD),and refit the MDRD equation parameter estimates with Chinese patients data.Methods A total of 760 hospitalized CKD patients were investigated from 2002 to 2005.Patients'sex,age,height and body weight were recorded;plasma creatinine and ~ 99m Tc-GFR(standardized by body surface area)were measured in all patients;GFR was estimated with simplified equation of MDRD and Cockcroft-Gault;the accurancy of estimated GFR with MDRD and CG were compared with~ 99m Tc-GFR in different stage of CKD.Totally 670 patients were randomly selected as the training sample,the remaining 90 patients constituted the validation sample.We used stepwise multiple regression to refit the equation of MDRD and the regression models were developed by using the training sample.The refitting equation was then tested and compared with the other equation in the validation sample.Results (1)Both the MDRD and CG-GFR prediction equations seemd to systematically underestimate GFR,but the accurancy of MDRD equation was better than CG-GFR in stage Ⅰ~Ⅲ of CKD.(2)The bias of estimated GFR(MDRD or CG-GFR equation)with ~ 99m Tc-GFR was lower in stage Ⅰ~Ⅲ than in stage Ⅳ~Ⅴ of CKD.(3)Refitting of the MDRD equation parameter estimates to Chinese patients data set resulted in the following prediction equations:GFR=234.96?(Scr)~ -0.926 ?(Age)~ -0.280 ?0.828(Female).(4)Comparing with~ 99m Tc-GFR,the bias of estimated GFR calculated by the refitting MDRD equation was lower than that of estimated with MDRD or CG especially in the stage Ⅳ~Ⅴ of CKD in Chinese patients.Conclusion the simplified equation of MDRD can estimate GRF accurately,but the equation must be refitted in Chinese patients.