Clinical value of thromboelastogram in evaluating coagulation fuction of patients with liver cancer / 中国输血杂志

【Objective】 To explore the value of thromboelastogram (TEG) in evaluating coagulation function of patients with liver cancer. 【Methods】 102 patients with liver cancer and 48 with hepatic hemangioma from Department of Hepatobiliary Surgery, Nanyang Central Hospital from August 2017 to September 2020 were retrospectively analyzed. TEG indicators (R, K, Angle, MA, CI, and G value) and routine coagulation indicators (Plt, PT, INR, APTT, FIB, and TT) of those patients and basic clinical data of liver cancer patients were collected, and the difference of detection parameters between the liver cancer group and liver hemangioma group was compared; The difference of TEG parameters in liver cancer patient subgroups was compared, and the correlation between TEG and routine coagulation tests in liver cancer patients was analyzed using Spearman rank correlation analysis. The sensitivity of the two detection methods in detecting the coagulation status of patients with liver cancer was compared. 【Results】 1) Compared with patients with hepatic hemangioma, Plts decreased significantly (166.6±108.824 vs 224.10±54.933, P<0.001), while PT, INR and APTT values increased significantly (13.12±2.052 vs 11.421±0.884, 1.156±0.191 vs 1.00±0.074, 29.977±5.333 vs 26.954±5.269, all P<0.05) in patients with liver cancer; MA and G values in patients with liver cancer were lower (56.991±11.574 vs 60.069±5.094, 7.667±4.682 vs 7.725±1.709, P<0.05); 2) Compared with newly diagnosed liver cancer patients, the Plt of re-diagnosed liver cancer patients decreased significantly(125.78±79.673 vs 188.86±116.437, P<0.05); the R and K value increased significantly (7.594±2.601 vs 6.058±1.739, 3.453±2.402 vs 2.438±1.990, all P<0.05), while the Angle, MA, CI and G value decreased significantly (53.897±12.288 vs 61.495±9.949, 53.556±11.407 vs 58.865±11.313, -3.494±4.253vs -0.836±3.180, 6.311±3.209 vs 8.406±5.191, all P<0.05); 3) There were significant differences in TEG parameters (R value excluded) between liver resection, transhepatic arterial chemoembolization and conservative treatment (P<0.05); 4) The R, K value of patients with liver cancer were negatively correlated with the Plt value, while the Angle, MA, CI, and G value were positively correlated with Plt value (P<0.001); the K value was negatively correlated with the Fib value, while the Angle, MA, CI, G value were positively correlated with Fib value (P<0.001); the R and K value were positively correlated with TT value, while the Angle and CI were negatively correlated with TT value (P<0.05); 5) The detection rate of hypocoagulability by TEG and routine coagulation testing was 18.63% (19/102) and 7.84%. 【Conclusion】 Compared with the newly diagnosed liver cancer patients, re-diagnosed liver cancer patients showed hypercoagulability. TEG can diagnose the coagulation abnormalties more sensitively, and help reduce the risk of bleeding.

The comparative study between thromboelastography and conventional coagulation tests in ischemic cerebral vascular disease / 中华急诊医学杂志

Objective@#To explore the correlation and consistency between thromboelastography (TEG) and traditional coagulation tests (CCTs) in ischemic cerebral vascular disease (ICVD).@*Methods@#Totally 108 ICVD patients admitted to Nanyang Central Hospital from May 1 to October 31 2018 were enrolled. Patients’ TEG parameters (R value, K value, Angle value, MA value, CI value and G value) and CCTs parameters (PT, APTT, TT, and FIB) were collected and analyzed retrospectively. The Spearman correlation coefficient was used to explore the correlation between TEG and CCTs parameters, and Kappa (κ) to explore the consistency in determining the coagulation status of the patients. The ROC curve was used to analyze the predictive value of TEG parameters for abnormal results of CCTs, and the results of TEG and CCTs were comprehensively analyzed to evaluate the ability to predict the coagulation status of patients.@*Results@#(1) PLT was positively correlated with MA value and G value; PT and APTT were positively correlated with K value; TT was positively correlated with R value and K value; FIB was positively correlated with Angle value, MA value and G value. TT was negatively correlated with Angle value and CI value; FIB was negatively correlated with K value. (2) PT and MA values, PT and G values, FIB and MA values, FIB and G values were accordant in valuing the hypoxic state of ICVD patients. (3) PLT and Angle values, PLT and MA values, PLT and CI values, PLT and G values were accordant in assessing hypercoagulable status of ICVD patients; FIB and Angle values, FIB and MA values, FIB and CI value, and FIB and G value were consistent in evaluating the hypercoagulable state of ICVD patients. (4) For detecting TT>20 s, the AUC of K value and Angle value were 0.648, 0.651, respectively; For detecting FIB>4 g/L, the AUC of Angle value and MA value were 0.717 and 0.747, respectively; For detecting PLT>300×109/L, the AUC of MA value was 0.808 (all P<0.05).@*Conclusions@#There is weak correlation and consistency between TEG and CCTs parameters in ICVD patients. The TEG parameters have good predictive value in evaluating the abnormal results of CCTs, but cannot replace the CCTs. Combination of these two methods can better reflect the coagulation status of patients, so as to afford assistance.

The comparative study between thromboelastograpby and conventional coagulation tests in ischemic cerebral vascular disease / 中华急诊医学杂志

Objective To explore the correlation and consistency between thromboelastograpby(TEG)and traditional coagulation tests(CCTs)in ischemic cerebral vascular disease(ICVD).Methods Totally 108 ICVD patients admitted to Nanyang Central Hospital from May 1 to October 31 2018 were enrolled.Patients' TEG parameters(R value,K value,Angle value,MA value,CI value and G value)and CCTs parameters(PT,APTT,TT,and FIB)were collected and analyzed retrospectively.The Spearman correlation coefficient was used to explore the correlation between TEG and CCTs parameters,and Kappa(κ)to explore the consistency in determining the coagulation status of the patients.The ROC curve was used to analyze the predictive value of TEG parameters for abnormal results of CCTs,and the results of TEG and CCTs were comprehensively analyzed to evaluate the ability to predict the coagulation status of patients.Results(1)PLT was positively correlated with MA value and G value; PT and APTT were positively correlated with K value; TT was positively correlated with R value and K value; FIB was positively correlated with Angle value,MA value and G value.TT was negatively correlated with Angle value and CI value; FIB was negatively correlated with K value.(2)PT and MA values,PT and G values,FIB and MA values,FIB and G values were accordant in valuing the hypoxic state of ICVD patients.(3)PLT and Angle values,PLT and MA values,PLT and CI values,PLT and G values were accordant in assessing hypercoagulable status of ICVD patients; FIB and Angle values,FIB and MA values,FIB and CI value,and FIB and G value were consistent in evaluating the hypercoagulable state of ICVD patients.(4)For detecting TT＞20 s,the AUC of K value and Angle value were 0.648,0.651,respectively;For detecting FIB＞4 g/L,the AUC of Angle value and MA value were 0.717 and 0.747,respectively; For detecting PLT＞ 300× 109/L,the AUC of MA value was 0.808(all P＜0.05).Conclusions There is weak correlation and consistency between TEG and CCTs parameters in ICVD Patients.The TEG parameters have good predictive value in evaluating the abnormal results of CCTs,but cannot replace the CCTs.Combination of these two methods can better reflect the coagulation status of patients,so as to afford assistance.

An Improvement of Chemiluminescent System for Determination of Peroxynitrite Anion / 生物化学与生物物理进展

An improvement of chemiluminescent system for determination of peroxynitrite anion (ONOO－) has been made. In this system, the effect of some antioxidants for scavenging ONOO－ was tested. The constitute of this system and the program of starting were followed as: The ozone (O3) was bubbled through a glass-frit into 10 ml 0.01 mol/L solution of sodium azide in CB(pH 10.5) to generate ONOO－. The 800 μl ozonized solution of azide was injected into a glass tude in situ which contains 100 μl sample and 100 μl luminol solutions to initiate chemiluminescence (CL). The pluses / 6 seconds (CP6S) were determined immediately and continually for 10～30 times. A certain CL intensity (CP6S) was chosen as evaluation index to compare the activity of antioxidants. This chemiluminescent system is sensible, simple and stable. The determination limit was 8.74 μmol/L ONOO－. The linear rang was 8.74～74.04 μmol/L ONOO－. The intra batch and inter batch variation coefficient (CV%) of the analysis were 3.35%(n=10) and 5.52%(n=10) respectively. It was tested that Vit.C, teapolyphenol, procyanidin and thiourea all have effects on scavenging ONOO－.

Role of nuclear factor-?B in the pathogenesis and therapy of cardiovascular diseases / 中国病理生理杂志

NF-?B is one of important transcription factors, which plays an important role in many immune and inflammatory responses. The novel data showed that the NF-?B pathway was also detectable in myocardial cells, vascular endothelial and smooth muscle cells, and involved in the development of many car-diovascular diseases. The present review gives a detail presentation of current advances on relationship betweenNF-?B and cardiovascular diseases.