D-二聚体测定与急性早幼粒细胞白血病

目的探讨D -二聚体含量与急性早幼粒细胞白血病(APL)经全反式维甲酸(ATRA)治疗前后弥漫性血管内凝血(DIC)发生率的关系及意义。方法应用ELISA法检测21例APL患者(包括7例合并DIC患者)发病时及应用ATRA治疗后D -二聚体水平的变化 ,并与正常对照组比较。结果21例APL患者治疗前血浆D -二聚体水平(2.38±0.98)mg/L较正常对照组(0.25±0.09)mg/L明显升高(P<0.01) ,其中7/21例并发DIC者(2.52±0.12)mg/L明显高于14/21例不并发DIC者 ,(2.18±0.96)mg/L。结论APL患者D -二聚体检测值随维甲酸治疗逐渐降低 ,并可预测ATRA治疗过程中DIC变化及预后     

D-二聚体检测对急性缺血性脑卒中的临床价值

目的 探讨D-二聚体在急性缺血性脑卒中（AIS）的变化及诊断价值.方法 检测78名对照组健康人和173例AIS组患者血浆D-二聚体含量.结果 AIS组血浆D-二聚体含量明显高于对照组（P＜0.05）;与对照组相比,小面积梗死组、中等面积梗死组和大面积梗死组血浆D-二聚体含量明显升高（P＜0.05）;且D-二聚体含量与脑梗死灶面积呈正相关（r =0.926,P＜0.05）.结论 AIS患者血浆D-二聚体含量明显升高,且随梗死面积的增大呈上升趋势.血浆D-二聚体对AIS的辅助诊断具有重要意义.     

血浆D-二聚体检测对急性缺血性脑卒中的临床意义

目的:分析血浆D-二聚体对急性缺血性脑卒中患者的诊断价值。方法:对113例住院急性缺血性脑卒中患者(卒中组),应用颗粒增强型免疫浊度法检测血浆D-二聚体水平,并与100例正常体检者(对照组)比较。通过绘制ROC曲线确定D-二聚体最佳临界值,并计算其对急性缺血性脑卒中诊断的敏感度和特异度。结果:卒中组血浆D-二聚体水平(1.97±0.13mg/L)明显高于对照组(0.34±0.09mg/L),差异有统计学意义(P0.05)。血浆D-二聚体诊断急性缺血性脑卒中最佳临界值为1.53mg/L,此时的敏感度为83.26%,特异度为66.32%。结论:血浆D-二聚体水平检测对诊断急性缺血性脑卒中有一定临床意义。     

D-二聚体在急性心肌梗死治疗中的检测分析

目的:探讨D-二聚体在急性心肌梗死治疗的诊断效果。方法:对我院2009年5月至2010年5月诊治的50例急性心肌梗死患者检测结果进行分析,于治疗前、治疗后1h、6h、12h检测D-二聚体水平。并选择门诊体检的50例健康成人作为对照组进行比较。所有患者均行心电图、心肌酶谱和超声检查。结果:急性心肌梗死的超声心动图表现为节段性室壁异常,梗死区对应的心室壁运动幅度降低,室壁变薄或消失,心室壁回声异常(表现为增强或减弱),心内膜回声不均匀。有42例被诊断超声心动图诊断为心肌梗死,检出率为84%。溶栓治疗后D-二聚体水平逐渐升高,6h达到峰值,12h时有所回落。溶栓前心肌梗死患者的D-二聚体均显著高于正常对照组。溶栓前及溶栓后不同超声诊断结果的心肌梗死患者其D-二聚体差异无统计学意义。结论:将定量的D-二聚体检查和定性的超声检查结合起来,验证了超声诊断心肌梗死血栓的可靠性,对于辅助指导临床合理用药有较大的帮助,值得在临床上推广应用。     

INNOVANCE试验和VIDAS试验检测D-二聚体方法比较

目的评估INNOVANCE试验检测D-二聚体(D-Dimer)的临床效能。方法85份枸橼酸钠抗凝血标本采血后2h内分别采用INNOVANCE试验和VIDAS试验进行D一二聚体测定。结果85份标本通过INNOVANCE试验和VIDAS试验检测D-二聚体的结果分别为(1716.2±183.18)ug/L FEU、(1754.51±209.03)ug/L FEU,经配对t检验r=0.93,P>0.05。结论INNOVANCE试验和VIDAS试验检测D-二聚体具有良好的相关性,差别无显著性,可以应用于临床。     

17例中枢神经系统白血病脑脊液D-二聚体含量测定

分子标志物D—二聚体定量测定可以准确反映中枢神经系统血白病的诊治效果及其预后评估。本研究共检测了17例中枢神经系统白血病(CNSL)患者的脑脊液D—二聚体(CSF DD)水平，并与正常人及未患CNSL的急性白血病(AL)病人对照，以探讨其对中枢神经系统白血病的诊断、疗效评价及预后评估的价值。     

D-二聚体与超敏C反应蛋白在急性主动脉夹层诊断中的研究

目的 分析D-二聚体(D-D)与超敏C-反应蛋白(hs-CRP)在急性主动脉夹层(AAD)早期诊断中的应用价值.方法2014年3月至2015年3月,分别检测105例AAD患者,其中典型主动脉夹层59例和非典型主动脉夹层46例,选择同期健康体检结果正常者44例(对照组)的血清D-二聚体和hs-CRP水平变化.结果 AAD发生后患者D-D和hs-CRP水平均不同程度升高.AAD组超敏C-反应蛋白和D-二聚体水平明显高于对照组(P<0.05);典型组与非典型组主动脉夹层患者血清D-dimer 水平比较差异具有统计学意义(P<0.05),而血清hs-CRP 水平则差异无统计学意义(P>0.05).结论在AAD早期诊断中,D-二聚体与超敏C-反应蛋白是有效、重要的筛选指标.     

D-二聚体联合纤维蛋白原对2型糖尿病患者急性肺栓塞的诊断价值

目的:探讨D-二聚体(D-dimer,D-D)联合纤维蛋白原(fibrinogen,FIB)对2型糖尿病内科住院患者急性肺栓塞的诊断价值.方法:选择2013年1月至2016年3月经CT肺动脉造影确诊急性肺栓塞的2型糖尿病内科住院患者及同期排除肺栓塞的2型糖尿病患者各80例,检测D-D及FIB水平.结果:在2型糖尿病急性肺栓塞患者中,D-D及FIB水平明显高于对照组.D-D和FIB单独检测诊断急性肺栓塞时的灵敏度、特异度、约登指数及ROC曲线下面积分别为:72.5％,42.5％;62.5％,91.25％;0.35,0.338;0.675(95％CI:0.597～0.747),0.669(95％CI:0.590～0.741);两者联合检测诊断急性肺栓塞时灵敏度为85.0％,特异度为60.0％,约登指数为0.45,工作特征曲线(receiver operatorcharacteristic,ROC)下面积为0.773(95％CI:0.700～0.835).D-D和FIB联合检测诊断急性肺栓塞时的ROC曲线下面积与单独检测D-D,FIB比较,差异有统计学意义(P＜0.01).结论:D-D联合FIB可作为2型糖尿病内科住院患者急性肺栓塞早期诊断时简单易行可靠的检测指标.     

FISH在免疫表型特殊的急性早幼粒细胞白血病诊断中的应用

为探讨荧光原位杂交(fluoresence in situ hybridization,FISH)技术在免疫表型特殊的急性早幼粒细胞白血病(acute promyelocytic leukemia,APL)诊断中的应用,作者用流式细胞仪(flow cytometry,FCM)检测APL患者骨髓中单个核细胞的免疫表型,并用FISH检测患者是否存在PML/RARα融合基因.结果发现,少数APL患者免疫表型为CD13 ,CD33 ,CD34-和HLA-DR ,而利用FISH技术检测后,发现存在PML/RARα融合基因,与典型的APL患者HLA-DR-、PML/RARα融合基因( )的结果不同,提示临床上不能只将免疫表型作为诊断白血病的独立指标,而应该结合传统的FAB分型及新兴的分子诊断技术如FISH、PCR等来协助诊断.     

Hematopoietic Stem Cell Transplant for Pediatric Acute Promyelocytic Leukemia

The optimal form of treatment for children with relapsed or refractory acute promyelocytic leukemia (APL) is unclear. We retrospectively analyzed the results of 32 (11 autologous, 21 allogeneic) hematopoietic stem cell transplants (HSCT) performed for children originally treated on either the Eastern Cooperative Group E2491 Trial or the Cancer and Leukemia Group B C9710 Trial and subsequently diagnosed with relapsed or refractory APL. For autologous HSCT, the incidence of treatment-related mortality (TRM) and relapse was 0% (95% confidence interval [CI], 0%-30%) and 27% (95% CI, 9%-57%), respectively. The 5-year event-free survival (EFS) and overall survival (OS) following autologous HSCT was 73% (95% CI, 43%-91%) and 82% (95% CI, 51%-96%), respectively. For allogeneic HSCT, the incidence of TRM and relapse was 19% (95% CI, 7%-41%) and 10% (95% CI, 2%-30%), respectively. The 5-year EFS and OS following allogeneic HSCT was 71% (95% CI, 50%-86%) and 76% (95% CI, 55%-90%), respectively. There was no significant difference in EFS or OS between autologous and allogeneic HSCT. This data demonstrates that autologous and allogeneic HSCT are both effective therapies for treatment of children with relapsed or refractory APL. Autologous HSCT is associated with a low incidence of TRM, whereas allogeneic HSCT is associated with a low incidence of relapse, suggesting a strong GVL effect against residual APL.     

TNF与急性早幼粒细胞白血病

１６例急性早幼粒细胞白自病患者血清ＴＮＦ活性明显高于正常对照（Ｐ＜０．０５），而经ＲＡ诱导分化治疗中期及治疗后明显降低（Ｐ＜０．０５），但仍高于正常对照组。各治疗时相的外周白细胞浆内ＴＮＦ平均水平及正常对照间均无明显差别（Ｐ＞０．０５），治疗前及治疗中期胞浆ＴＮＦ活性升高率明显高于治疗后或正常对照（Ｐ＜０．０５）。相关分析表明：血清ＴＮＦ活性水平与外周血ＷＢＣ总数或骨髓ＧＭ－ＣＦＵ无明显相关，而与     

Cytogenetic studies in four cases of Acute Promyelocytic Leukemia (APL)

Four patients diagnosed as having acute promyelocytic leukemia (APL) were cytogenetically examined. They had an identical abnormality, 46,XX or XY,t(15q+;17q−), while one of them had two additional cell lines, 47,XY,+8,t(15q+;17q−) and 46,XY,15q+,i(17q−). The break points were tentatively assigned at bands 15q23 and 17q12.     

The Diagnostic Value of D-dimer,Procalcitonin and CRP in Acute Appendicitis

BACKGROUND: The early diagnosis of acute abdomen is of great importance. To date, several inflammatory markers have been used for the diagnosis of acute abdominal conditions, including acute appendicitis. The aim of this study was to evaluate the diagnostic utility of D-dimer, Procalcitonin (PCT) and C-reactive protein (CRP) measurements in the acute appendicitis.METHODS: This prospective study was conducted between March 1^st, 2010 and July 1^st, 2011. In this period, seventy-eight patients were operated with the diagnosis of acute appendicitis, and D-dimer, PCT and CRP levels of the patients were measured. The patients were grouped as phlegmonous appendicitis (Group 1), gangrenous appendicitis (Group 2), perforated appendicitis (Group 3) and negative appendectomy (Group 4) according to the surgical findings and histopathological results.RESULTS: Of 78 patients, 54 (69.2 %) were male and 24 (30.8 %) were female, and the mean age was 25.4 ± 11.1 years (range, 18 to 69 years). 66 (84.6 %) patients had increased leukocyte count (white blood cell count). The PCT values were higher than the upper normal limit in 20 (25.6%) patients, followed by D-dimer in 22 (28.2 %) patients and CRP in 54 (69.2 %) patients. The diagnostic value of leukocyte count and CRP in acute appendicitis was higher than that of the other markers, whereas leukocyte count showed very low specificity. CRP values were higher in perforated appendicitis when compared with the phlegmonous appendicitis (p<0.05). However, PCT and D-dimer showed lower diagnostic values (26% and 31%, respectively).CONCLUSION: An increase in CRP levels alone is not sufficient to make the diagnosis of acute appendicitis. However, CRP levels may differentiate between phlegmonous appendicitis and perforated appendicitis. Due to their low sensitivity and diagnostic value, PCT and D-dimer are not better markers than CRP for the diagnosis of acute appendicitis.     

三氧化二砷对急性早幼粒细胞白血病细胞分泌细胞因子的影响与意义

为了探讨细胞因子在三氧化二砷诱发APL细胞白细胞升高的作用 ,首先按照FAB细胞形态学和细胞遗传学标准选择APL患者。常规Ficoll密度梯度法分离骨髓和PBMC ,体外培养 1h去除贴壁细胞。体外IL 1β、IL 6、IL 8、TNF α和G CSF分泌水平采用ELISA方法进行测定 ,NBT还原实验用以检测APL细胞分化状态。直接细胞计数法和MTT法观察细胞增殖变化。研究结果证实体外 10 6M或体内以 10mg/d三氧化二砷治疗 96h后 ,APL细胞分泌IL 1β和G CSF平均水平升高 (P <0 0 5 ) ,IL 6和IL 8水平降低 (P <0 0 5 ) ,TNF α水平无明显变化 (P >0 0 5 )。进一步分析结果表明 ,体外APL细胞的增值比率与IL 1β或G CSF分泌升高比率呈现正相关 ,检测到IL 1β或G CSF患者的细胞数量增加比率高于未检测到IL 1β或G CSF组 ,说明IL 1β或G CSF分泌增加在三氧化二砷诱导后的APL细胞增殖中起着一定作用     

肺癌患者血浆D-二聚体、NSE及CYFRA21-1联合检测的临床价值

探讨血浆D-二聚体和神经元特异性烯醇化酶、细胞角蛋白19片段21-1联合检测在肺癌诊断中的临床价值。方法 选取2016年2月~2017年12月我院收治的130例肺癌患者作为肺癌组,同时选取40例肺部良性肿瘤患者（良性病变组）及40例同期体检健康者（健康对照组）为对照,采用化学发光法检测血清NSE、CYFRA21-1,血浆D-二聚体检测采用免疫比浊法分别检测各组血浆D-D、血清NSE和CYFRA21-1水平,并对结果进行分析。结果 肺癌组血浆D-D、血清NSE和CYFRA21-1水平均高于肺部良性病变组及健康对照组（P＜0.05）;三项指标与肺癌的恶性程度相关,肺癌分期Ⅲ~Ⅳ期患者血浆D-D、血清NSE和CYFRA21-1水平高于Ⅰ~Ⅱ期患者（P＜0.05）;血浆D-D、血清NSE和CYFRA21-1在肺癌中的敏感度分别为68.31%、54.44%及52.22%,其三项联合检测的敏感度为88.89%。结论 肺癌患者血浆D-D、血清NSE和CYFRA21-1水平升高,对肺癌的临床分期具有一定鉴别诊断作用,可以作为肺癌诊断的敏感指标。三项联合检测对肺癌的早期辅助诊断具有重要的临床价值。     

BNP、MYO、cTnI三项联合测定对AMI早期诊断的临床意义

通过采用化学免疫发光法定量检测47例急性心肌梗死(AMI)患者的BNP、MYO、cTnI并进行对照分析,探讨AMI患者的血浆脑钠肽(BNP)、肌红蛋白(MYO)、肌钙蛋白cTnI的浓度变化和三者间的相关性,进一步揭示三者联合检测对AMI诊断的临床意义.结果表明,AMI组血浆BNP、MYO、cTnl的检测结果与健康对照组...