1.Mela-analysis of the outcomes of liver transplantation from donation after cardiac death donors
Ying CHENG ; Yijie ZHANG ; Xiaoqing LI ; Tingting LIU ; Yongfeng LIU
Chinese Journal of Organ Transplantation 2011;32(12):719-722
Objective To conduct a meta-analysis to evaluate the outcomes of donation after cardiac death (DCD) compared with donation after brain death (DBD) liver transplantatior.Methods The MELDINE (1950-2011),EMBASE,and Cochrane Library databases were searched.All original single institution studies reporting outcomes of comparing donation after DCD and DBD liver transplantation were considered.A meta-analysis of complication incidence and patients/grafts survival after liver transplantation was conducted.Odds ratios (OR) and 95 % confidence intervals (CI) based on random effects models were calculated.Results Thirteen studies,all retrospective cohort studies,involving 5867 DCD and 619 DBD recipients,were included.DCD recipients had a 2.5 times increased odds of biliary complications (95 % CI =2.0~3.12),an 11.24 times increased odds of ischemic cholangiopathy (IC) (95 % CI =5.58 ~ 22.64 ),and a 2.12 times increased odds of primary nonfunction (PNF).DCD recipients also experienced lower odds of 1-year patient survival (OR =0.78,95 % CI=0.59~1.02),83.8 %,87.2 %,separately,and 1-year graft survival (OR=0.55,95% CI=0.45~0.68),72.2 % and 82.4 %,separately.Three-year patient survival was present in 81.5 % of DCD vs 78.9 % of DBD,which has no significant difference.The 3-year graft survival was lower inDCD than that in DBD (OR =0.73,95 % CI =0.56~0.94),69.5 % and 73.6%,separately.Conclusion DCD liver transplantation is associated with higher risks of biliary complications.But regarding the comparable general outcomes with DBD transplantation,DCD could be a source of liver.
2.Transport of geniposide and geniposide in Zhizi Bopi Decoction in MDCK cell membrane model
Jingwen HAN ; Jun LI ; Cheng HUANG ; Zhaolin CHEN ; Tingting HU
Chinese Pharmacological Bulletin 2014;(4):468-472
Aim To study the transport of geniposide and geniposide in Zhizi Bopi Decoction in MDCK cell membrane model. Methods The safety concentration of geniposide and Zhizi Bopi Decoction in MDCK cells were determined by MTT assay. Then the MDCK cell membrane model was used to investigate the transport of drugs. Firstly, the effects of time, drug concentra-tion, P-gp inhibitor and EDTA on the absorption and transport of geniposide were studied systematically. Secondly, the differences were compared between the transport of the same concentration of geniposide as single compound and that in Zhizi Bopi Decoction in MDCK cell model. The drug concentration was deter-mined by high performance liquid chromatography ( HPLC) to calculate the apparent permeability coeffi-cient (Papp). Results Geniposide transport in MDCK cell monolayer was time and concentration dependent. P-gp inhibitors had no significant effect on its transport and the transport of geniposide was enhanced by ED-TA. The absorption Papp of different concentrations of geniposide in Zhizi Bopi Decoction were ( 8. 96 ± 0. 35 ) × 10 -7 cm · s-1 , ( 8. 95 ± 0. 38 ) × 10 -7 cm · s-1 and (9. 16 ± 0. 30) × 10 -7 cm·s-1, significantly higher than the absorption Papp of geniposide as single compound(5. 85 ± 0. 44) × 10 -7 cm·s-1, (6. 88 ± 0. 38) × 10 -7 cm·s-1 and (6. 31 ± 0. 19) × 10 -7 cm ·s-1 ( P<0. 05 ) . Conclusion The transport of ge-niposide in MDCK cell membrane model is passive transport and is not affected by P-gp. Geniposide may transport via the paracellular route. The Zhizi Bopi De-coction can increase the absorption of geniposide.
3.Experimental study on vascular allografts' cold storage/sequential cryopreservation
Tingting LIU ; Ying CHENG ; Rui SHI ; Yongfeng LIU
Chinese Journal of Organ Transplantation 2010;31(7):405-409
Objective To explore the feasibility and secure cold storage time of human arteries during sequentially cold-cryopreservation by observing the cellular metabolic activity and structure after cold storage and cryopreservation. Methods Human iliac and splenic arteries were stored for 72 h, 1 week, 2 weeks, 3 weeks and 4 weeks in UW solution at 4 ℃. After the cold storage procedure, half of the vascular allografts were examined by NBT dye method, electron and light microscope. The other vascular allografts continued to be stored by - 80 ℃ cryopreservation procedure for 4 weeks, and then the vascular allografts were examined by NBT dye method, electron and light microscope. Results There was no statistically significant difference in NBT dyeing time between the groups stored in UW solution within 2 weeks and fresh group at 4 ℃ (P > 0. 05). After - 80 ℃ cryopreservation, there was also no statistically significant difference in NBT dyeing time between the groups stored by UW solution within 1 week and fresh group at 4 ℃ (P>0. 05). Along with the extension of cold storage time, the destruction of ultrastructure was aggravated. When vascular allograft was stored over 2 weeks at 4 ℃, the destruction was more obvious. As the cold storage time prolonged, the ultrastructural destruction of vascular allografts was aggravated, especially those stored over 1 week. Conclusion The optimal time limit for arteries stored at 4 ℃ in UW solution was 2 weeks. Cryopreservation at - 80 ℃ kept the arteries satisfactory metabolic activity and organizational structure. The arteries stored within 1 week at 4 ℃ in UW solution, which restored at - 80 ℃ , could maintain satisfactory metabolic activity and organizational structure.
4.Reduction of radiation dose with electrocardiogram-pulsing windows technique in dual-source CT coronary angiography
Jianxin CAO ; Yimin WANG ; Cheng YANG ; Yi HUANG ; Tingting YU
Chinese Journal of Radiological Medicine and Protection 2010;30(6):737-739
Objective To evaluate the value of reducing radiation dose with decreased size of ECG-pulsing windows and influence on image quality in dual-source CT coronary angiography. Methods 120 patients with stable heart rate(HR) were divided into four groups according to HR and the rang of ECG-pulsing windows in dual-source CT coronary angiography: HR < 70 bpm and 61% ~ 77% R-R interval of ECG-pulsing windows, HR < 70 bpm and 25% ~ 80% R-R interval of ECG-pulsing windows,HR > 80 bpm and 31% ~47% R-R interval of ECG-pulsing windows, and HR > 80 bpm and 25% ~ 80%R-R interval of ECG-pulsing windows was employed, respectively. The radiation dose parameters were recorded and image quality scores were performed. The image quality and radiation dose between two slow HR groups and between two fast HR groups were compared respectively. Result The effective doses were (7.06 ± 2. 13 ), ( 11.34 ± 3.65 ), ( 6. 67 ± 1.97 ) and ( 9. 92 ± 3. 15 ) mSy for four groups, respectively.The effective dose was decreased by 37.74% for slow HR and by 32. 76% for fast HR using narrow ECG-pulsing windows. There was no difference on image quality between two slow HR groups and two fast HR grouvs. Concluslons The proper application of narrow ECG-pulsing windows can reduce radiation exposure significantly to stable slow or fast HR patients in dual-source CT coronary angiography withont sacrificing the image quality.
5.Effect of parecoxib on cardiac function after acute myocardial infarction in rats
Ningning CHENG ; Jin GAO ; Tingting WEN ; Ping CHEN
Chinese Journal of Anesthesiology 2010;30(8):956-958
Objective To investigate the effect of parecoxib on cardiac function after acute myocardial infarction (AMI) in rats. Methods Twenty-four adult male SD rats, weighing 230-250 g, were randomly divided into 3 groups ( n = 8 each): group Ⅰ sham operation (group S), group Ⅱ AMI and group Ⅲ parecoxib (group P). Myocardial infarction was induced by ligation of left anterior descending branch (LAD) of coronary artery in group Ⅱ and Ⅲ . In group S, LAD and cervical sympathetic trunk were exposed but not ligated and transected.Group P received intrperitoneal parecoxib 8 mg/kg once a day for 3 days 24 h after ligation of LAD, while group AMI received normal saline instead. At 4th day after ligation LAD, the left ventricular systolic pressure ( LVSP),left ventricular end-diastolic pressure (LVEDP) and ± dp/dtmax were measured and recorded. Blood samples were taken from common carotid artery to determine the plasma concentrations of TXA2 and PGI2 and PGI2/TXA2 was calculated. Then the animals were sacrificed and hearts removed. Myocardial infarct size of left venicle was calculated. Results Compared with group S, LVSP, ± dp/dtmax, plasma concentrations of PGI2 and PGI2/TXA2 were significantly decreased, while LVEDP and plasma concentrations of TXA2 increased in group AMI and P( P <0.05). Compared with group AMI, LVSP, ± dp/dtmax, plasma concentrations of PGI2 and PGI2/TXA2 were significantly decreased, while LVEDP and plasma concentrations of TXA2 increased in group P ( P < 0.05). There was no significant difference in myocardial infarct size between group AMI and P (P > 0.05). Conclusion Parecoxib can improve cardiac function after AMI in rats and the mechanism is related to regulation of the balance of PGI2/TXA2.
6.Research Status on Paecilomyces Hepialid
Dan YANG ; Tingting HUANG ; Cheng CHEN ; Yunshu MA
Chinese Journal of Information on Traditional Chinese Medicine 2015;(5):129-131
Paecilomyces hepialid was obtained through separation from cordyceps. Its name comes from studies on identification, cultivation, and morphology. It is one of the common substitutes of cordyceps. This article made a summary from the aspects of review, cultivation methods, active constituents, pharmacological effects, and product development. It also discussed the major issues remaining in the current researches and made suggestions for future studies.
7.Value of Urinaryα1-Acid Glycoprotein in Early Diagnosis of Diabetic Nephropathy
Tingting TAN ; Li CHENG ; Hongxia WEI ; Kui ZHANG
Journal of Modern Laboratory Medicine 2016;(1):80-82
Objective To investigate the clinical value of urinaryα1-acid glycoprotein (AAG)in the early diagnosis of diabetic nephropathy(DN).Methods 266 cases of diabetic patients in Drum Tower Hospital Affiliated to Medical School of Nanjing University from May 2013 to October 2014 were recruited,and patients were divided into four groups based on the urine al-bumin/creatinine (ACR)levels,as follows:non-diabetic nephropathy group (Non-DN)152 cases,low urinary albumin/cre-atinine group (LUA)49 cases,high urinary albumin/creatinine group (HUA)32 cases,and very high urinary albumin/cre-atinine group (VHUA)33 cases.63 cases of healthy subjects (NC group)and 66 cases of fracture patients (stress group) were recruited as control group.The urinary AAG and other biochemical indicators were measured for all subjects.Results The level of urinary AAG in DN group was significantly higher than that in stress group,Non-DN group and NC group (t=7.951,7.985,8.021,P <0.05),and gradually increased from LUA,HUA to VHUA group (P <0.05).The urinary AAG level was positively correlated with UA,Cr,CRP and ACR (r=0.169,0.286,0.373,0.606,P <0.01).Stepwise logistic re-gression analysis showed that the urinary AAG was the independent risk factor of DN (P <0.05).Conclusion The level of urinary AAG has good application value in the early diagnosis and monitoring progression of DN.
8.The influence of epidural analgesia on stress, immune and survival in patients with ovarian cancer undergoing cytoreductive surgery
Tingting MA ; Fangxiao LU ; Dongdong WANG ; Cheng ZHOU
Chinese Journal of Endocrine Surgery 2017;11(2):135-139
Objective To explore the influence of epidural analgesia on stress,immune and survival in patients with ovarian cancer undergoing cytoreductive surgery.Methods 72 cases with ovarian cancer undergoing cytoreductive surgery were divided into group A and group B according to random number table method.Patients in group A were treated with epidural analgesia,while patients in group B were treated with intravenous analgesia.The stress index,the plasma cortisol and immune indexes,CD3+,CD4+,CD8+ and CD4+/CD8+ at 30 mins before surgery (T1),right after surgery (T2),12 h after surgery (T3),1 d after surgery (T4) and 3 d after surgery (T5) between the two groups were observed.The overall survival and free survival in the two groups were compared.Results The plasma cortisol levels was lower in group A than in group B (Fgroup=27.784,P=0.000).The plasma cortisol levels in the two groups increased first and then decreased (Ftime=109,268,P-=0.000),and the decrease ratein group A was higher than that in group B (Finteraction,=22.092,P=0.000).The levels of CD3+,CD4+ and CD4+/CD8+ werehigher in group A than in group B,while the level of CD8+ was lower in group A than in group B (Fgroup=5.893,6.110,7.283,5.593,P<0.05).The levels of CD3+,CD4+ and CD4+/CD8+ in the two groups reduced first and then increased while the level of CD8+ increased first and then reduced (Ftime=12.220,14.430,15.592,11.102,P<0.05).CD3+,CD4+ and CD4+/CD8+ in group A increased more while C D8+ reduced more than those in group B (Finteraction=8.251,9.792,8.092,7.103,P<0.05).The overall survival rate and free survival rate of 3 years in group A and group B was 44.44%,22.22% vs 38.89%,16.67%,respectivelyThedifferencehadnostatisticalsignificancebetweenthetwogroups (P>0.05).Conclusion Epidural analgesia may reduce the stress response in patients with ovarian cancer undergoing cytoreductive surgery,and protect the immune function,but the influence on survival is not obvious.
9.Association between adverse obstetric outcomes and abnormal maternal serum markers in the second trimester screening
Tingting ZHAO ; Haiou ZHANG ; Xinrong ZHAO ; Weiwei CHENG ; Jiong TAO
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(8):1127-1131
Objective · To evaluate the association between the abnormal maternal serum markers of alpha fetoprotein (AFP), human chorionic gonadotrophin (hCG) and unconjugated estriol (uE3) in the second trimester screening and the adverse obstetric outcomes other than trisomy 21 (T21),trisomy 18 (T18) and open neural tube defects (ONTD), and to provide local data for supporting evidence based clinical managements. Methods · A retrospective cohort study was performed in the women who received second trimester maternal serum screening in the International Peace Maternal and Child Health Hospital between 2012 and 2014, with naturally conceived singleton pregnancies. Obstetric outcomes were followed up by searching electronic medical records within the hospital. Abnormal level of marker was defined as a MOM value ≥ 99th (P99) or ≤ 1st percentile (P1) of the overall screened population. Incidence of an adverse obstetric outcome was compared between the groups with abnormal markers and the control with all markers in normal. Results · ① A total of 25616 pregnancies were included in this study, in which 4526 were identified as having various adverse obstetric outcomes. Among them 4143 pregnancies were with isolated and 383 pregnancies were with co-occurring two or more adverse outcomes. ② When compared to pregnancies with normal levels of all three serum markers, pregnancies with decreased AFP or decreased hCG did not show associations with any adverse obstetric outcomes. However, pregnancies with increased AFP, increased hCG or decreased uE3 were at increased risk for a variety of abnormal pregnancy outcome. In 18 pregnancies with an outcome of fetal chromosomal abnormalities other than T21 and T18, 9 presented with either increased AFP, increased hCG or decreased uE3, with relative risk ratios of 13.33、35.00 and 59.00, respectively. ③ The performance of those markers tended to be improved in a subset of adverse obstetric outcomes, including low birth weight
10.Investigation of Iodine Nutritional Status and Thyroid Function in Pregnant Women During Different Periods
Tingting TAN ; Yuxin CHEN ; Li CHENG ; Hongxia WEI ; Kui ZHANG
Journal of Modern Laboratory Medicine 2017;32(3):115-118
Objective To study the iodine nutritional status and the thyroid function of pregnant women during different periods,and provide scientific basis for iodine supplementation.Methods Totally 728 pregnant women who visited the obstetric outpatient of Nanjing Drum Tower Hospital for routine prenatal care from December 2014 to August 2016 were recruited in this study,and at the same time 182 non-pregnant women were recruited as control group.The thyroid stimulating hormone (TSH) and free thyroxine (FT4) were measured by Roche 601.The urinary iodine level was measured by SR-I-100 kit.Results The median urinary iodine of 728 pregnant women was 168.24 g/L,and the median urinary iodine of those women in the T1,T2 and T3 period were 186.31,162.65 and 148.76 g/L,respectively.The TSH at T1 period was lower than T2 and T3 period (t=3.429,3.135,P<0.05).The FT4 at T1 period was higher than T2 and T3 period (t=5.251,5.965,P< 0.05).The prevalence rate of thyroid disease in normal urinary iodine group was lower than that in low urinary iodine group and high urinary iodine group (x2 =4.139,4.131,P<0.05).Conclusion There was no iodine deficiency among those pregnant women groups,but only 34.75 % individuals reached the appropriate iodine nutritional level,and the ratio of iodine insufficient increased with the extension of pregnancy.The whole prevalence rate of thyroid disease in abnormal urinary iodine pregnant women was obviously higher than that in normal.It is necessary to improve the pregnant women's knowledge of iodine nutrition,moreover it is suggested that urinary iodine monitoring and thyroid function should be conducted in pregnant women.