1.GC Fingerprints of High-yield Pinellia ternata from the West of Hubei Province
China Pharmacy 1991;0(03):-
OBJECTIVE:To establish a fingerprint analysis method of Pinellia ternata from the west of Hubei province.METHODS:The samples of Pinellia ternata from different areas harvested at different time and processed by different methods were analyzed by GC method to establish their fingerprint data.RESULTS: The fingerprints of Pinellia ternata have been established using GC data of the chromatographic peaks of five phytosterols from various samples,and these samples had a similarity of between 0.877 and 0.999.CONCLUSION: The fingerprints of phytosterols of Pinellia ternata are stable thus can be used as a new method for the quality control of Pinellia ternata.
2.Changes of PRA and effects of HLA sensitized paths in patients waiting for renal transplantation
Lulu XIAO ; Lixin YU ; Keli ZHENG
Chinese Journal of Organ Transplantation 2012;33(3):133-136
Objective To investigate the changes of panel reaction antibody (PRA) and the effects of HLA sensitized paths in patients waiting for renal transplantation.Methods PRA of 10 555 samples from 8926 renal transplant recipients in 51 transplant centers was analyzed.In 1991-1998 group,PRA was by using NIH-CDC technique,and in 1999-2010 group,PRA was detected by using ELISA.The effects of blood transfusion,pregnancy and transplantation on the PRA positive rate were analyzed.Results There were 1324 recipients positive for PRA in 8926 (14.83 % ).The average PRA positive rate in 1991 1998 group and 1999-2010 group was 18.17% (513/2823) and 13.29% (811/6103) repectively (P<0.01).Among 1324 PRA positive recipients,the number of recipients with PRA of 1%-30% and PRA of ≥30% respectively accounted for 71.83% and 28.17%.There were statistically significant differences in the PRA positive rate between the recipients receiving blood transfusion and those without blood transfusion (31.77% vs 1.21%,P < 0.01 ),between the recipients having pregnancy history and those without pregnancy history (24.64% vs 7.19%,P< 0.01 ),and between primary transplant and re-transplant recipients (13.35 % vs 40.62%,P<0.01).Conclusion In last 20 years, PRA in majority of PRA positive recipients was < 30% (low sensitized).Renal transplantation and blood transfusion were the important influencing factors that led to positive PRA,and pregnancy history was a related factor.
3.Diagnostic implication of human cytomegalovirus immediate early 1 mRNA detection by nucleic acid sequence-based amplification in renal transplant recipients
Yafeng LIU ; Keli ZHENG ; Changxi WANG
Chinese Journal of Organ Transplantation 2005;0(11):-
Objective To evaluate the significance of immediate early 1 (IE) mRNA detection by nucleic acid sequence-based amplification (NASBA) in the diagnosis of human cytomegalovirus (HCMV) infection after renal transplantation.Methods The expression of IE-mRNA and pp67-(mRNA) was detected by NASBA in 55 patients after renal transplantation, and pp65 antigenemia (assays) were done for all cases.Results Twenty cases were positive for IE-mRNA. Thirteen cases were suffered from CMV disease with symptoms. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of IE-mRNA by NASBA were 92.3 %, 80.9 %, 60.0 % and 97.1 %, respectively. Time to first IE-mRNA positive detection after transplantation was shortest, compared with pp67 and antigenemia (P
4.Clinical study of HLA and cross reactive groups matching in sensitized recipients of kidney transplantation
Xiangan TU ; Keli ZHENG ; Yuping DAI
Journal of Chinese Physician 2000;0(12):-
Objective To investigate the effects of kidney transplantation in sensitized recipients receiving conventional human leukocyte antigen(HLA) and cross-reactive groups(CREG) matching.Methods The HLA and CREG matching were used to select the best donors for 82 recipients with high titer of panel reactive antibody(PRA),and adjunctive application of plasma exchange and intravenous immunoglublin were conducted.Results The successful rate was 90%(74/82) and mortality rate was 1%(1/82).The incidence of hyperacute rejection,accelerated acute rejection,acute rejection and delayed graft function was 4%(3/82),6%(5/82),28%(23/82) and 21%(17/82),respectively.The incidences of acute rejection in groups of broad sensitized,HLA class Ⅰantibody positive recipients,HLA antibody positive recipients of post-transplantation and donor specific antibody were higher than those in groups of mild sensitized,HLA classⅡantibody positive recipients,HLA antibody positive recipients of pre-transplantation non-donor and specific antibody respectively(all P
5.Late complications of continent ileocolic reservoir with an unaltered in situ appendix conduit
Yuping DAI ; Keli ZHENG ; Hua MEI
Chinese Journal of Urology 2001;0(09):-
Objective To evaluate the late complications of continent ileocolic reservoir with an unaltered in situ appendix conduit and the management. Methods Thirty patients with bladder cancer who had undergone the surgery of continent ileocolic diversion with an unaltered in situ appendix conduit were followed up for 108 to 126 months (mean 118 months).The long-term post-operative complications were documented. Results The complications occurred as follows:urinary pouch superdistention in 5 cases,calculus formation in the urinary pouch in 6,difficulty with catheterization in 4,uerteral obstruction in 3,hemorrhage of the pouch in 1 and mild hyperchloremic acidosis in 1.These complications were managed accordingly and good results achieved. Conclusions Although continent ileocolic diversion with an unaltered in situ appendix conduit has a long-term efficacy,the complications occur frequently.The procedure needs further improvement.
6.Clinical significance of expression of human cytomegalovirus pp67-mRNA in transplant recipients
Junxing CHEN ; Keli ZHENG ; Lanying ZHU
Chinese Journal of Organ Transplantation 1996;0(02):-
ObjectiveTo establish a new method for diagnosis of active human cytomegalovirus (HCMV) i nfection and disease in transplant recipients.MethodsThe expression of HCMV pp67-mRNA in blood was detected by the nucleic acid sequence-based amplification (NASBA), in comparison to detection of pp65 HCMV a ntigen in white blood cells.ResultsIn 50 patients subject to transplantation, 26 were positive for pp65 (≥1/50 000 WBC). Among them, 16 were positive for pp67. In 9 cases of CMV with symptoms, b oth pp65 and pp67 were positive. In the patients negative for pp65, pp67 was not positive. The sensitivity, specificity, positive predictive value and negative predictive value were 100?%, 88?%, 56?% and 100?%, respectively.ConclusionDetection of pp67-mRNA by NASBA is a rapid objective and accurate approach for the diagnosis of HCMV infection.
7.An open-label multi-center clinical study of the efficacy and safety of rapamycin in combination with CsA and steroid to prevent the acute rejection of kidney transplantation
Keli ZHENG ; Changxi WANG ; Lizhong CHEN
Chinese Journal of Organ Transplantation 1996;0(04):-
Objective To study the clinical efficacy and safety of rapamycin in combination with CsA and steroid to prevent the acute rejection of kidney transplantation. Methods In an open-label,multi-center study,there were 100 primary renal allograft recipients with cadaveric donors enrolled from 4 transplantation centers in China. The immunosuppressive regimen was the triple therapy of rapamycin in combination with CsA and steriod. Rapamycin was administered in 48 h after grafting. The first dose of rapamycin was 6 mg /day and the maintenance dose was 2 mg /day. Results Eighty-four recipients were followed up for more than 6 months. Rapamycin was discontinued in 16 patients because of the adverse events and other reasons. Eight patients experienced acute rejection and 7 patients were reversed by methyprednisolon therapy. In 6 of the 7 patients,the dose of rapamycin was maintained 2 mg /day. The remaining one was added to 3 mg /day. No recurrence of AR was observed in a continuous follow-up of more than half-year. The most common and significant adverse events were hyperlipoidemia and abnormal liver function.Conclusions The combination of rapamycin with CsA and steroid to treat recipients of kidney transplantation is safe and efficient. There was a low incidence of AR but a high incidence of hyperlipoidemia and abnormal liver function. The rational regulation of the dose may reduce the incidence of the side-effects. Further observation and study are required for long-term application.
8.Study on clinical monitoring of tacrolimus (FK506) area under the curve of concentration-time after the first oral dose in kidney transplant recipients
Yehui CHEN ; Keli ZHENG ; Lizhong CHEN
Chinese Journal of Urology 2001;0(11):-
Objective To study the clinical monitoring of tacrolimus (FK506) area under the curve (AUC) of concentration-time after the first oral dose in kidney transplant recipients. Methods Sixteen kidney transplant recipients were treated with anti-lymphocyte globulin (ALG) and methyprednisolone (MP) for 3 days after operation.Then FK506 capsules were given orally at the same dose,0.075 mg/kg,on the third day.The pharmacokinetic monitoring of FK506 were conducted as follows.FK506 concentrations were measured by ELISA at 0.5,1.0,1.5,2.0,3.0,5.0,8.0,12.0 hours after the first oral dose. The data of FK506 pharmacokinetics were calculated using 3P87 pharmacokinetic procedures and SPSS 8.0. Results AUC of concentration-time of the first dose ranged from 44.40 ?g?h -1 ?L -1 to 158.01 ?g?h -1 ?L -1 (mean, 92.23?34.97 ?g?h -1 ?L -1 ). The correlation between the first tacrolimus trough concentration (C min ) and AUC had statistic significance ( r=0.650,P
9.Clinical study on avascular necrosis of the femoral head in 24 renal transplantation patients
Bo HAO ; Changxi WANG ; Keli ZHENG
Chinese Journal of Organ Transplantation 2003;0(05):-
Objective To investigate the clinical features, diagnosis and therapy of avascular necrosis of the femoral head after renal transplantation Methods Of the 24 renal transplantation patients with avascular necrosis of the femoral head 0.7 - 7.8 years postoperatively, 20 cases were unilateral and 4 bilateral respectively. According to the standard of Ficat's, all cases were classed as 0-Ⅳ stages. All cases accepted immunosuppressive therapy that included corticoids. The corticoids were reduced in dose at the time when the patients were diagnosed as having avascular necrosis of femoral head and withdrawn in 2 weeks. Surgical treatment was not done unless the expectant treatment was invalid.Results The clinical manifestations of femoral head avascular necrosis after renal transplantation included knee joint, hip joint, inguina or thigh pain in the earlier period (Ⅰ-Ⅱa stage) and hip joint pain in progression (Ⅱb-Ⅳ stage). Some cases were associated with hip joint flex, adduct, abduction and intorsion dysfunction. After expectant treatment, the symptoms of hip were alleviated or disappeared in 4 cases; In 16 cases, the symptoms of hip were relieved to some extent, but Ficat’s stage had no change. Eight cases had no reaction to expectant treatment and were subjected to surgical operation. In 4 cases, acute rejection occurred after corticoid withdrawal, reversed after therapy by MP and ATG and could tolerance corticoid withdrawal again.Conclusion Corticoid is the main reason of avascular necrosis of the femoral head after renal transplantation. The therapeutic effectiveness of avascular necrosis of the femoral head was not satisfactory and the emphasis was put on the prevention.
10.Prospectively study of pravastatin in the treatment of dyslipidemia after renal transplantation
Bo HAO ; Changxi WANG ; Keli ZHENG
Chinese Journal of Organ Transplantation 2005;0(12):-
6.2 mmol/L) who underwent renal transplantation accepted pravastatin therapy (10 mg, qn) for 8 weeks. The changes of total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), high-density lipoprotein-cholesterol (HDL-C) , triglyceride (TG), endothelin (ET) and nitrous oxide (NO) were measured before and after pravastatin treatment. By using high resolution ultrasound, endotheli-um-dependent relaxing function was measured before and post pravastatin treatment. Thirty people with normal blood cholesterol served as controls and subjected to the above examinations. Results In renal transplantation group, ET was significantly higher and NO significantly lower than in control group. After treatment with pravastatin, NO was significantly increased, while ET, TC, LDL-C and TG were significantly reduced. HDL-C was increased, but no significant difference was found. Flow-mediated vasodilations were greater after pravastatin treatment than before, but smaller than control group. Conclusion Pravastatin can theat dyslipidemia after renal transplantation and improve impaired endothelium-dependent vasodilation.