Evaluation of clinical utility of serum enzymes and troponin—T in the early stages of acute myocardial infarction     

Hitesh Shah  N. Haridas 《Indian journal of clinical biochemistry : IJCB》2003,18(2):93-101

Laboratory infarction diagnostics are based on the detection of elevated serum activities of total Creatine Kinase (CK), Creatine Kinase isoensyme MB, (CKMB), Lactate dehydrogenase (LDH), isoenzyme forms of LDH and transaminases. Determination of these cardiac marker enzymes permits a highly sensitive diagnosis of transmural myocardial infarction. In such patients the diagnosis of acute myocardial infarction can be confirmed by the clinical, symptoms, and changes in the ECG in addition to the enzyme assays. The 50 AMI patients selected in the present study were those admitted to the ICCU of Shri Krishna Hospital, Karamsad. The blood samples were taken at the time of admission (ie. within four hours of the start of chest pain). The samples were analyzed for CK, CKMB, SGOT, (Serum glutamate oxaloactate transaminase) αHBDH α-hydroxybutyrate dehydrogenase and troponin T. The serum CKMB activity in AMI showed an increase only 5–6 hours after the commencement of chest pain. The elevation in SGOT and αHBDH was still delayed. At the same time we could observe that the cardiac Troponin T (cTnT) was elevated at the time of admission of the patient itself. This increase of cTnT in AMI patients was 20 times higher than the normal blood donors. The controls included 25 normal blood donors and 25 patients with polytraumatic injuries with no chest contusion. The study shows that cTnT estimation could serve in the early diagnosis of AMI. The increase of cardiac troponin T in AMI patients was 20 times higher than the normal blood donors in AMI patients at the time of admission. Cardiac troponin T in serum appears to be a more sensitive indicator of myocardial cell injury than CKMB activity and its detection in the circulation may be a useful prognostic indicator in patients with unstable angina as well. When the blood of normal blood donors or that of patients with polytraumatic injury was analysed the troponin T values were well within the normal range in both the above categories showing that cardiac troponin T is highly specific for heart tissue. Although CKMB and cardiac troponin T are released soon after the myocardial injury, the release of cardiac troponin T is much earlier than CKMB thereby invalidating the important role of cardiac troponin T in diagnosing AMI. Cardiac troponin T has been shown to be highly sensitive for cardiac injury and not elevated in any other trauma, heavy exercise or skeletal muscle injury. Cardiac troponin T is ordinarily undetectable in healthy individuals, and so its measurement can serve as a powerful tool in the diagnosis of AMI.  相似文献   

缺血修饰白蛋白在急性胸痛患者鉴别诊断中的价值     

钱锦  黄颖 《泰州职业技术学院学报》2014,(2):67-68

目的探讨血清缺血修饰白蛋白（IMA）在急性胸痛患者鉴别诊断中的价值。方法通过检测163例由于急性胸痛来我院就诊的患者血清中IMA水平,根据患者最终诊断结果,从而判断IMA在急性胸痛患者中的鉴别诊断价值。结果研究显示在163例患者中,心源性胸痛患者为102例,IMA值为（98．37±19．12）。非心源性胸痛为61例,IMA值为（32．54±12．11）。结论IMA在急性胸痛患者的检测中可以有效地鉴别心源性胸痛和非心源性胸痛,对于减少心源性胸痛的漏诊起到了显著的作用。  相似文献   

运动训练对糖尿病大鼠心肌纤维化的改善作用及其可能机制     

侯改霞  肖国强 《体育学刊》2013,(2)

通过高脂喂养加腹腔注射小剂量链脲佐菌素(STZ)构建2型糖尿病大鼠模型,探讨运动训练对2型糖尿病大鼠心肌纤维化的改善作用.结果发现:与正常对照组相比,糖尿病对照组血液GLU、GHb、GSP和INS水平及心肌AGEs、Hyp、CVF、GSSG/GSH、MDA和NF-κB P65蛋白表达均显著升高(P<0.05或P<0.01);与糖尿病对照组相比,糖尿病运动组(DE)的血液GLU、GHb和GSP水平及心肌AGEs、Hyp、CVF、GSSG/GSH、MDA和NF-κB P65蛋白表达均显著降低(P<0.05或P<0.01).结果表明:本实验所复制的2型糖尿病大鼠模型存在心肌纤维化的现象,运动可改善2型糖尿病大鼠空腹血糖,降低心肌组织AGEs含量、氧化应激和NF-κB P65蛋白表达水平,对糖尿病大鼠心肌纤维化起到改善作用,AGEs/氧化应激/NF-κB P65可能为运动改善2型糖尿病大鼠心肌纤维化的重要通路.  相似文献   

益母草用于治疗缺血性疾病的临床应用   总被引：3，自引：0，他引：3  

陶丽华  高峰  李虎将 《通化师范学院学报》2003,24(6):29-31

益母草用于治疗心肌缺血(无症状性心肌缺血、冠心病心肌缺血)，治疗脑梗死(创伤性脑梗死、缺血性脑梗死)，治疗脑梗塞并心肌缺血，治疗中心性、浆液性视网膜结膜炎，治疗晚期小视野青光眼都取得了令人满意的临床效果．治疗前后各项指标具有明显差异，治愈率高于复方丹参对照组及其它阳性药物对照组，机理研究阐明了作用途径．  相似文献   

血清心肌酶检测与肝病转归的关系及意义     

侯亚利  马淑芳  王丽莎  赵自刚  牛春雨  樊贵  张静 《河北北方学院学报(医学版)》2004,21(5):51-52

目的:探讨肝病患者血清心肌酶的变化与病情的关系.方法:门诊肝病患者共124例和健康者30例.肝病患者中含有乙型肝炎患者98例、肝癌患者26例,其中合并心功能不全患者32例,分为肝病组和肝病合并心功能不全组.所有患者与正常对照组均经7150型全自动生化分析仪测定血清GOT、GPT、LDH、HBDH、CK的活性.结果:肝病组血清GOT、GPT、LDH、HBDH活性均高于对照组(P＜0.01～0.05),而血清CK活性与对照组无明显差异(P＞0.05),肝病合并心功能不全组血清GOT、GPT、LDH、HBDH、CK活性均高于对照组(P＜0.01～0.05);肝病合并心功能不全组与肝病组血清GOT、GPT、LDH、HBDH活性无明显差异(P＞0.05),但CK活性显著高于肝病组(P＜0.01).结论:肝病患者血清酶的变化可反映肝细胞的受损程度,而CK活性的检测是肝病患者发生心功能不全、预示肝病转归的一个重要诊断指标.  相似文献   

心肌损伤标志物在急性心肌梗死早期诊断的价值分析   总被引：2，自引：0，他引：2  

宋燕  于景云  贺明 《大连大学学报》2006,27(2):102-104

目的:评价心肌损伤标志物cTnT/I、M yo、CK-MB质量在急性心肌梗死(AM I)中的早期诊断价值.方法:对226例AM I患者进行心肌标志物和心肌酶比较.结果:心肌标志物在AM I发病早期升高的幅度较心肌酶升高显著(P<0.01).结论:心肌损伤标志物cTnT/、IM yo、CK-MB质量在AM I早期诊断中具有重要的临床价值.  相似文献   

女子自行车运动员多日赛期间心肌损伤指标监控及人参和果糖干预效果的实验研究          下载免费PDF全文

张洁  沈金康 《体育科研》2014,(4):58-61

目的:本研究以中国优秀女子公路自行车运动员为研究对象,研究长期比赛对她们的心肌损伤标志物的影响,探讨肌钙蛋白(cTnI)早期诊断心脏疲劳的实效性,同时对人参和磷酸果糖的营养干预效果做动态观察。方法:经过30 d的多日赛后,比赛组心肌损伤标志物CK、CK-MB、CK-MB/CK、AST明显升高,cTnI平均值在正常范围。结果:和比赛组相比,比赛+人参组和比赛+果糖组的心肌损伤标志物CK、CK-MB、CK-MB/CK、AST水平明显降低。3个比赛组cTnI平均值在正常范围,组间差别不明显。结论:人参和果糖可以通过不同的机制保护心肌细胞膜的完整性,人参能增强机体对各种有害刺激的反应能力,加强机体适应性。cTnI诊断心肌疲劳的特异性和敏感性高于CK、CK-MB、CK-MB/CK、AST。  相似文献   

间歇低氧训练对SD大鼠心肌肌球蛋白重链表达的影响     

刘旭东  周里 《山东体育学院学报》2010,26(7)

目的:观察在间歇低氧及游泳运动的影响下,SD大鼠心肌细胞肌球蛋白重链α-MHC、β-MHC两种异构型表达的变化,探讨间歇低氧训练对心肌功能影响的可能分子机制.方法:将128只SD大鼠随机分成对照组、间歇低氧训练组、游泳训练组及间歇低氧+游泳训练组,经过4周的训练,采用SDS-PAGE法观察SD大鼠心肌细胞肌球蛋白重链α-MHC、β-MHC表达的变化. 结果:间歇低氧及游泳训练可引起α-MHC表达不同程度的上调,同时β-MHC表达不同程度的下调.结论:在间歇低氧及运动性机械刺激作用的过程中,心肌细胞通过上调α-MHC和下调β-MHC的表达,来适应环境氧分压降低的变化和运动刺激的作用.  相似文献   

间歇运动训练和急性间歇运动对缺血/再灌注大鼠心电图及血清心肌酶的影响     

彭峰林  郭艳菊  张林 《中国体育科技》2010,46(3)

目的:探索长期运动训练和急性运动的心脏保护作用及心电指标的变化规律,为进一步研究运动预适应机制提供依据.方法:32只3月龄雌性SD大鼠随机分成3大组:间训模型组(n=8)、急性运动模型组和对照组(n=8),间歇运动训练组进行高强度间歇运动训练,急性间歇运动组仅进行急性高强度的间歇运动,对照组(n=16)不运动,在心脏模型制备时对照组随机分成对照模型组(n=8)和对照假手术组(n=8).运动训练结束后,各组大鼠均采用结扎左冠状动脉制备在体大鼠心肌缺血/再灌注损伤模型,但对照假手术组只开胸穿线而不结扎.缺血/再灌注过程实行全程心电监控,缺血30 min、再灌注40 min后,测定血清心肌酶.结果:经间歇运动训练和急性间歇运动处理的缺血/再灌注大鼠血清心肌酶明显低于对照模型组(P<0.05或P<0.01);缺血30 min及再灌注40 min间歇运动训练组心电图ST段、T波面积和QT间期明显低于对照模型组(P<0.05或P<0.01);再灌注40min急性间歇运动组心电图ST段、T波和QT间期明显低于对照模型组(P<0.05).结论:长期间歇运动训练产生心肌抗缺血/再灌注损伤的保护作用,急性运动主要产生抗心脏再灌注损伤的保护作用.  相似文献   

Current perspectives on laboratory markers for the assessment of cardiovascular disease and myocardial damage     

Sheshadri Narayanan 《Indian journal of clinical biochemistry : IJCB》1999,14(2):117-128

The disruption of the endothelim is a prelude to the evolution of arteriosclerosis. Nitric oxide is critical to endothelial function. The oxidation of low density lipoprotein (LDL) mediated by small dense LDL particles contributes to the development of cardiovascular disease. The multiple effects of homocysteine including its potentiating the binding of lipoprotein(a) (LP(a)) to fibrin and its role in the formation of small dense LDL particles highlights its importance in the evolution of cardiovascular disease and justifies its measurement. Problems in measurement of homocysteine should be kept in perspective. The measurement of release of proteins from the cardiac contractile apparatus such as Troponin I has advantages over conventional measurement of cardiac enzymes and isozymes.  相似文献