Detection of LAMA2 c.715C>G:p.R239G mutation in a newborn with raised creatine kinase: A case report

BACKGROUND We report a rare case of primary clinical presentation featuring elevated creatine kinase(CK)levels in a neonate,which is associated with the LAMA2 gene.In this case,a heterozygous mutation in exon5 of the LAMA2 gene,c.715C>G(resulting in a change of nucleotide number 715 in the coding region from cytosine to gua-nine),induced an amino acid alteration p.R239G(No.239)in the patient,repre-senting a missense mutation.This observation may be elucidated by the neonatal creatine monitoring mechanism,a phenomenon not previously reported.CASE SUMMARY We analysed the case of a neonate presenting solely with elevated CK levels who was eventually discharged after supportive treatment.The chief complaint was identification of increased CK levels for 15 d and higher CK values for 1 d.Ad-mission occurred at 18 d of age,and despite prolonged treatment with creatine and vitamin C,the elevated CK levels showed limited improvement.Whole exo-me sequencing revealed the presence of a c.715C>G mutation in LAMA2 in the newborn,correlating with a clinical phenotype.However,the available informa-tion offers insufficient evidence for clinical pathogenicity.CONCLUSION Mutations in LAMA2 are associated with the clinical phenotype of increased neonatal CK levels,for which no specific treatment exists.Whole genome sequen-cing facilitates early diagnosis.

American ginseng supplementation attenuates creatine kinase level induced by submaximal exercise in human beings

AIM: To investigate whether American ginseng (AG, Panax quinquefolium) supplementation was able to improve endurance exercise performance.METHODS: Thirteen physically active male college students were divided into two groups (AG or placebo)and received supplementation for 4 wk, before the exhaustive running exercise. Treadmill speed was increased to a pace equivalent to 80% VO2max of the subject. A 4-wk washout period followed before the subjects crossed over and received the alternate supplement for the next 4 wk.They then completed a second exhaustive running exercise. The physiological variables that were examined included time to exhaustion and oxygen pulse. Moreover,the plasma creatine kinase (CK) and lactate were measured prior to the exercise, at 15 and 30 min during exercise,immediately after exercise, and 20, 40, 60, and 120 min after exercise.RESULTS: The major finding of this investigation was that the production plasma CK during the exercise significantly decreased for group AG than for group P. Secondary physiological finding was that 80% VO2max running was not improved over a 4-wk AG supplementation regimen.CONCLUSION: Supplementation with AG for 4 wk prior to an exhaustive aerobic treadmill running reduced the leakage of CK during exercise, but did not enhance aerobic work capacity. The reduction of plasma CK may be due to the fact that AG is effective for the decrease of skeletal muscle cell membrane damage, induced by exercise during the high-intensity treadmill run.

Creatine kinase in the diagnosis and prognostic prediction of amyotrophic lateral sclerosis:a retrospective case-control study

Creatine kinase is a muscle enzyme that has been reported at various levels in different studies involving patients with amyotrophic lateral sclerosis.In the present retrospective case-control study,we included 582 patients with amyotrophic lateral sclerosis and 582 age-and sexmatched healthy controls.All amyotrophic lateral sclerosis participants received treatment in the Department of Neurology,West China Hospital,China,between May 2008 and December 2018.Serum creatine kinase levels in patients with amyotrophic lateral sclerosis were significantly higher than those in healthy controls.Subgroup analysis revealed that serum creatine kinase levels in men were higher than those in women in both amyotrophic lateral sclerosis patients and healthy controls.Compared with patients with bulbar-onset amyotrophic lateral sclerosis,patients with limb-onset amyotrophic lateral sclerosis had higher creatine kinase levels.Spearman's correlation analysis revealed that serum creatine kinase levels were not correlated with body mass index,Amyotrophic lateral Sclerosis Functional Rating ScaleRevised score,or progression rate.After adjusting for prognostic covariates,higher log creatine kinase values were correlated with higher overall survival in the amyotrophic lateral sclerosis patients.We also investigated the longitudinal changes in serum creatine kinase levels in 81 amyotrophic lateral sclerosis patients;serum creatine kinase levels were decreased at the second blood test,which was sampled at least 6 months after the first blood test.Together,our results suggest that serum creatine kinase levels can be used as an independent factor for predicting the prognosis of amyotrophic lateral sclerosis patients.This study received ethical approval from the Ethics Committee of West China Hospital,China(approval No.2015(236))on December 23,2015.

Oligosaccharide and Creatine Supplementation on Glucose and Urea Nitrogen in Blood and Serum Creatine Kinase in Basketball Athletes

Summary： The effects of oligosaccharide and creatine （Cr） supplementation on glucose, lactic acid and urea nitrogen levels in blood and activity of serum creatine kinase （CK） were explored. Twenty CUBA male athletes were divided into 4 groups： group A （supplementation of Cr alone）, group B （supplementation of oligosaccharide）, group C （supplementation of oligosaccharide and Cr） and group D （placebo control group）. By using orthogonal L4 table （2a ）, the experiment was performed. There were factors including oligosaccharide （carbohydrate, CHO）, Cr and their correlation. Each factor had two levels： supplementation and no-supplementation. The results showed that the supplementation of CliO or Cr alone, combined supplementation of CHO and Cr could significantly reduce the glucose, urea nitrogen levels in blood and serum CK activity after competition in the athletes. Moreover, the effects of combined supplementation of CHO and Cr were more satisfactory. It was concluded that supplementation of CliO and Cr could promote the recovery of physical performance and athletic abilities after athletics in basketball athletes.

Flunarizine and lamotrigine prophylaxis effects on neuron-specific enolase, S-100, and brain-specific creatine kinase in a fetal rat model of hypoxic-ischemic brain damage

BACKGROUND： Calcium antagonists may act as neuroprotectants, diminishing the influx of calcium ions through voltage-sensitive calcium channels. When administered prophylactically, they display neuroprotective effects against hypoxic-ischemic brain damage in newborn rats. OBJECTIVE： To investigate the neuroprotective effects of flunarizine （FNZ）, lamotrigine （LTG） and the combination of both drugs, on hypoxic-ischemic brain damage in fetal rats. DESIGN AND SETTING： This randomized, complete block design was performed at the Department of Pediatrics, Shenzhen Fourth People＇s Hospital, Guangdong Medical College. MATERIALS： Forty pregnant Wistar rats, at gestational day 20, were selected for the experiment and were randomly divided into FNZ, LTG, FNZ ＋ LTG, and model groups, with 10 rats in each group. METHODS： Rats in the FNZ, LTG, and FNZ ＋ LTG groups received intragastric injections of FNZ （0.5 mg/kg/d）, LTG （10 mg/kg/d）, and FNZ （0.5 mg/kg/d） ＋ LTG （10 mg/kg/d）, respectively. Drugs were administered once a day for 3 days prior to induction of hypoxia-ischemia. Rats in the model group were not administered any drugs. Three hours after the final administration, eight pregnant rats from each group underwent model establishment hypoxia-ischemia brain damage to the fetal rats. Cesareans were performed at 6, 12, 24, and 48 hours later; and 5 fetal rats were removed from each mother and kept warm. Two fetuses without model establishment were removed by planned cesarean at the same time and served as controls. A total of 0.3 mL serum was collected from fetal rats at 6, 12, 24, and 48 hours, respectively, following birth. MAIN OUTCOME MEASURES： Serum protein concentrations of neuron-specific enolase and S-100 were measured by ELISA. Serum concentrations of brain-specific creatine kinase were measured using an electrogenerated chemiluminescence method. RESULTS： Serum concentrations of neuron-specific enolase, S-100, and brain-specific creatine kinase were significantly higher in the hypoxic-ischemic fetal rats, compared with the non-hypoxic-ischemic group. Serum concentrations of neuron-specific enolase, S-100, and brain-specific creatine kinase were significantly less in the FNZ, LTG, and FNZ ＋ LTG groups following ischemia, compared with the model group （P 〈 0.01）. However, these values were significantly greater in the FNZ and LTG groups, compared with the FNZ ＋ LTG group, following ischemia （P 〈 0.01）. CONCLUSION： Preventive antenatal use of oral FNZ and LTG has positive neuroprotective effects on intrauterine hypoxic-ischemic brain damage. The combined effect of these two drugs is superior.

RXPERIMENTAL AND CLINICAL STUDY OF CREATINE KINASE BB ACTIVITY FOR THE DIAGNOSIS ON BRAIN DAMAGE

Objective To study the differential diagnosis on cerebral concussion and mild cerebral contusion value of the brain type creatine kinase isoenzyme(CK BB),and evaluate the seriousness of brain damage and prognosis of the patients with acute head injury.Methods Chromatographic separating and fluorometric quantifying technique was used to detect the CK BB activity in the cerebrospinal fluid(CSF) of 117 patients with acute head injury and 12 patients with increased intracranial pressure and 20 normal people.Results The CSF CK BB activity of the patients with acute head injury was remarkably higher than that of the normal people and the CSF CK BB activity increased with the seriousness of brain damage.There was a close relationship between CSF CK BB activity and prognosis,and higher activity of CSF CK BB indicated poor prognosis.Conclusion CSF CK BB activity could be used as a new index to diagnose brain damage and evaluate the seriousness of brain damage and prognosis.

Comparison of serum cardiac troponin-Ⅰ and creatine kinase MB isoenzyme concentrations in asphyxiated neonates

Objective:To assess the correlation of signs of myocardial damage to serum cardiac troponin I(cTnI)and creatine kinase MB isoenzyme(CK-MB)concentrations.Methods:Blood samples were collected from 25 term asphyxiated neonates and 25 controls at 12 h of age by immunoassay.The asphyxiated neonates were followed up until discharge or death.Results:Asphyxiated neonates had significantly higher concentrations of cTnI and CK-MB than controls(P<0.001).Serum cTnI concentrations were significantly higher in asphyxiated neonates who developed hypotension,heart failure or those had low ejection fraction(P<0.01).Serum cTnI concentrations were significantly higher in asphyxiated who died than those who survived(P<0.01).There was no significant difference in serum CK-MB mass concentrations between asphyxiated neonates with and without these complications.Conclusion:Unlike CK-MB,serum cTnI concentrations are significantly higher in asphyxiated neonates who died or developed cardiac dysfunction.

Relationship Between Serum Creatine Kinase Isoenzyme MM Subbands and the Gradation of Coronary Stenosis in Patients with Unstable Angina Pectoris

Objective To observe the relationship between serum creatine kinase isoenzyme MM sub-bands (CKMM3/MM1 ratio) and the gradation of coronary stenosis and provide a simple, reliable, and economical method for identifying high-risk unstable angina pectoris (UAP). Mehtods Blood samples were drawn at different time after onset of chest pain in 21 patients with UAP and only once in 20 each volunteers for control. CKMM3/MM1 ratio was detected by nonserial buffer agarose gel electrophoresis. CKMB and CK were observed by velocity method. An emergent coronary arteriography was performed as soon as patients were admitted into hospital. Results Patients with UAP were divided into two subgroups: patients with elevated serum enzyme [P( + )] and patients with normal serum enzyme [P( - ) ] according to CKMM3/MM1 ratio < 0. 5. Patients with UAP( + ) had higher serum CKMM3/MM1 ratios from 0.5 to 12hrs and serum CKMB from 2 to 12 hrs than those with UAP( - ) and control ( P < 0. 05) . Serum enzyme concentrations of patients with UAP whose coronary lumen had 90% or more than 90% stenosis were significantly higher than those whose coronary lumen had less than 90% stenosis ( P <0. 01) . Any CK-MM3/MM1 ratio was less than 1. 0 and CK within the normal range in patients with UAP( + ) group. Conclusions CKMM3/MM1 ratios in patients with UAP can reflect severity of myocardial ischemia. SerumCKMM3/MM1 ratio provides a simple, reliable, and economical method for identifying high-risk UAP.

AMI患者PCI术后血清PAF、CK-MB、sCD40L水平变化及其与再缺血的关系

目的探究急性心肌梗死(AMI)患者经皮冠状动脉介入(PCI)术后血清血小板活化因子(PAF)、肌酸激酶同工酶(CK-MB)、可溶性白细胞分化抗原40配体(sCD40L)水平的变化,并分析其与术后再缺血的关系。方法前瞻性选取2019年10月至2022年10月郑州大学第一附属医院收治的225例AMI患者作为研究对象,检测围手术期(术前、术后3 d、术后14 d)所有患者的血清PAF、CK-MB、sCD40L水平,术后接受为期1年随访,根据PCI术后有无再缺血发生分为再缺血发生组30例和再缺血未发生组195例。比较两组患者的临床资料及血清PAF、CK-MB、sCD40L水平;采用Logistic回归方程分析AMI患者PCI术后再缺血影响因素;绘制受试者工作特征曲线(ROC)分析血清PAF、CK-MB、sCD40L水平对AMI患者PCI术后再缺血的预测价值。结果再缺血发生组患者的中国冠心病患者抗血小板治疗优选方案(OPT-CAD)评分为(102.41±15.83)分,明显高于再缺血未发生组的(82.37±10.69)分,差异有统计学意义(P<0.05);再缺血发生组患者术后3 d、14 d的血清PAF水平分别为(89.15±20.11)ng/mL、(78.60±13.24)ng/mL,明显高于再缺血未发生组的(79.85±17.69)ng/mL、(67.42±10.38)ng/mL,CK-MB水平分别为(38.28±11.94)μg/L、(23.09±6.83)μg/L,明显高于再缺血未发生组的(34.83±10.16)μg/L、(17.69±5.12)μg/L,sCD40L水平分别为(4681.69±305.63)pg/mL、(3721.59±175.63)pg/mL,明显高于再缺血未发生组的(4369.39±227.84)pg/mL、(3129.46±132.88)pg/mL,差异均有统计学意义(P<0.05);经Logistic回归方程分析结果显示,OPT-CAD评分及术后3 d、14 d血清PAF、CK-MB、sCD40L水平均为AMI患者PCI术后再缺血发生的危险因素(P<0.05);经ROC分析结果显示,术后3 d血清PAF、CK-MB、sCD40L联合预测再缺血发生的AUC为0.877,术后14 d血清PAF、CK-MB、sCD40L联合预测再缺血发生的AUC为0.930,均大于各时间点三项血清指标单独预测。结论血清PAF、CK-MB、sCD40L水平是AMI患者PCI术后再缺血发生的危险因素,围手术期血清PAF、CK-MB、sCD40L联合预测患者PCI术后再缺血风险的效能较高,可为临床防治PCI术后再缺血提供参考。

血清CK-MB、IL-6、LDH水平联合检测在慢性心力衰竭诊断中的效能

目的:分析血清肌酸激酶同工酶(CK-MB)、白细胞介素-6(IL-6)、乳酸脱氢酶(LDH)水平联合检测在慢性心力衰竭(CHF)诊断中的效能。方法:选取2021年1月至2023年1月该院收治的83例CHF患者进行横断面研究,设为研究组,依据是否发生主要心血管不良事件将其分为预后不良者18例与预后良好者65例,另选取同期于该院体检的83名健康志愿者作为对照组。比较两组、不同心功能分级及不同预后CHF患者血清CK-MB、IL-6、LDH水平,采用Pearson相关性分析血清CK-MB、IL-6、LDH水平与CHF患者心功能分级的相关性,绘制受试者工作特征(ROC)曲线分析治疗后1个月血清CK-MB、IL-6、LDH水平单项及联合检测诊断CHF患者的效能。结果:研究组血清CK-MB、IL-6、LDH水平均高于对照组,差异有统计学意义(P<0.05);不同心功能分级CHF患者血清CK-MB、IL-6、LDH水平比较,Ⅱ级<Ⅲ级<Ⅳ级,差异均有统计学意义(P<0.05);经Pearson相关性分析结果显示,血清CK-MB、IL-6、LDH水平与CHF患者心功能分级均呈正相关(r>0,P<0.05);治疗后1个月,两组血清CK-MB、IL-6、LDH水平均低于治疗前,但预后不良者高于预后良好者,差异有统计学意义(P<0.05);经ROC曲线分析结果显示,血清CK-MB、IL-6、LDH水平单项及联合检测诊断CHF患者预后不良的曲线下面积分别为0.788、0.769、0.760、0.906,且联合检测诊断CHF患者预后不良的效能高于三者单项检测。结论:血清CK-MB、IL-6、LDH水平联合检测诊断CHF的效能高于三者单项检测。

血清CK、Mb联合血乳酸预测多发伤患者短期预后的价值

目的研究血清肌酸激酶(CK)、肌红蛋白(Mb)联合血乳酸预测多发伤患者短期预后的价值。方法回顾性分析黄冈市中心医院2019年9月—2022年9月收治的78例多发伤患者的临床资料,根据30 d后临床结局,将患者分为预后良好组(存活,共68例)及预后不良组(死亡,共10例)。收集患者一般资料,包括性别、年龄、受伤部位、受伤原因、心率、平均动脉压(MAP)、有无急诊插管、有无急诊心脏复苏术(CPR)、急诊输血次数,检测两组CK、Mb及血乳酸水平。比较两组临床资料差异;通过ROC分析CK、Mb及血乳酸预测多发伤短期预后不良的价值;以一致性分析CK、Mb及血乳酸联合预测多发伤短期预后不良的准确率;将两组有差异信息纳入Logistic模型,行量化赋值,明确多发伤预后不良的危险因素。结果预后良好组CK、Mb、血乳酸水平均明显低于预后不良组(P<0.05),预后良好组MAP≤90 mmHg、急诊插管、急诊CPR人数明显少于预后不良组(P<0.05)。两组在性别构成、年龄、受伤部位、受伤原因、心率、急诊输血次数方面无统计学差异(P>0.05)。经ROC分析证实CK、Mb及血乳酸能够预测多发伤短期预后不良,曲线下面积为0.625、0.783、0.796,均有P<0.05。联合检测采用串联试验,经一致性分析,CK、Mb及血乳酸联合预测多发伤短期预后不良的灵敏度0.800,特异度0.985,准确率96.20%,Kappa=0.820。将两组有差异信息纳入Logistic模型,行量化赋值,证实MAP≤90mmHg、急诊插管、急诊CPR、CK≥729.375μg/L、Mb≥358.260 U/L、血乳酸≥2.955 mmol/L是多发伤短期预后不良的危险因素(P<0.05)。结论CK、Mb、血乳酸均可预测多发伤患者短期预后不良,且三者联合能够更好预测多发伤患者短期预后不良。

高胆红素血症新生儿血清CKMB NPY及β_(2)-MG的水平变化及临床意义

目的:探讨高胆红素血症新生儿血清肌酸激酶同工酶(CreatineKinase-MB,CKMB)、神经肽Y(Neuropeptide Y,NPY)及β_(2)-微球蛋白(β_(2)-microglobulin,β_(2)-MG)的水平变化及临床意义。方法:选取本院2019年1月至2022年1月收治的高胆红素血症新生儿118例为观察组,根据总胆红素(total bilirubin,STB)分度分为:轻度组58例(220.6μmoL/L<STB≤256.5μmoL/L),中度组42例(256.5μmoL/L<STB≤342μmoL/L),重度组18例(STB>342μmoL/L);另选取同期于本院经皮胆红素测定无黄疸的健康新生儿112例为对照组。比较对照组、观察组CKMB、NPY及β_(2)-MG水平;比较观察组不同STB程度患者CKMB、NPY及β_(2)-MG水平;根据经皮胆红素测定的STB水平分为急性期组及恢复期组,比较急性期及恢复期两组患者CKMB、NPY及β_(2)-MG水平。结果:观察组CKMB、NPY及β_(2)-MG水平均比对照组高(P<0.05)。不同STB程度患者CKMB、NPY、β_(2)-MG水平比较:轻度组<中度组<重度组(P<0.05)。118例高胆红素血症新生儿中,急性期组67例和恢复期组51例,急性期组CKMB、NPY、β_(2)-MG水平均高于恢复期组(P<0.05)。结论:血清CKMB、NPY及β_(2)-MG与高胆红素血症新生儿病情严重程度及预后关系密切,可通过检测上述指标评估患儿病情进展及预后,具有重要临床意义。

多巴丝肼、普拉克索联合治疗帕金森病的效果及对PARK2、CKMT1A、Netrin-1的影响

目的探究多巴丝肼、普拉克索联合治疗帕金森病(PD)的效果及对人帕金森病蛋白2(PARK2)、线粒体肌酸激酶1A(CKMT1A)及神经轴突导向因子1(Netrin-1)的影响。方法选择2021年7月至2023年6月于新乡医学院第一附属医院治疗的PD患者108例为研究对象,依据随机数字表法分为试验组和对照组,每组54例。对照组行多巴丝肼治疗,试验组行多巴丝肼、普拉克索联合治疗。观察两组治疗前后PD严重程度,认知功能水平,睡眠障碍情况,血清PARK2、CKMT1A、Netrin-1水平和不良反应。结果治疗后,试验组统一PD评定量表(UPDRS)各分项得分及总分、匹兹堡睡眠质量指数量表(PSQI)评分均低于对照组(P<0.05),简易智力状态检查量表(MMSE)评分高于对照组(P<0.05)。试验组血清PARK2、Netrin-1水平均高于对照组(P<0.05),血清CKMT1A水平低于对照组(P<0.05)。试验组总有效率大于对照组(P<0.05)。两组不良反应发生率差异无统计学意义(P>0.05)。结论多巴丝肼、普拉克索联合治疗PD可缓解患者症状,提高其认知功能及睡眠质量,改善血清PARK2、CKMT1A、Netrin-1水平。

SYNTAX积分联合血清NT-pro BNP、CK-MB、cTnI水平对急性心肌梗死患者PCI术预后的评估价值

目的探讨SYNTAX积分联合血清N末端钠尿肽前体(NT-pro BNP)、肌酸激酶同工酶(CK-MB)、心肌钙蛋白(cTnI)水平评估急性心肌梗死(AMI)患者经皮冠状动脉介入治疗(PCI)术预后的价值。方法选取2020年1月—2022年11月我院85例行PCI术的AMI患者为研究对象,根据患者术后是否存在主要不良心脑血管事件(MACCE)分为预后良好组(n=63)和预后不良组(n=22),术前均行冠脉造影,采用SYNTAX积分评估患者冠脉变程度,住院期间常规测定患者血清NT-pro BNP、CK-MB、cTnI水平,术后随访半年。比较两组一般临床资料、SYNTAX积分及血清NT-pro BNP、CK-MB、cTnI水平,采用多因素Logistic回归分析法分析影响AMI患者PCI术预后的危险因素,采用受试者工作曲线分析SYNTAX积分联合血清NT-pro BNP、CK-MB、cTnI水平对AMI患者PCI术预后的评估价值。结果两组性别、年龄、BMI、合并高血压、糖尿病、血清TC、TG、HDL-C、LDL-C、Scr、LVEF、LVEDD比较,差异无统计学意义(P>0.05),Killip分级、病变支数分布、支架置入数、介入治疗时间、住院时间比较,差异均有统计学意义(P<0.05);预后不良组SYNTAX积分、血清NT-pro BNP、CK-MB、cTnI水平均显著高于预后良好组(P<0.05);多因素Logistic回归分析显示,病变支数、支架置入数、SYNTAX积分、血清NT-pro BNP、CK-MB、cTnI水平是影响AMI患者PCI术预后的危险因素(P<0.05);ROC曲线显示,SYNTAX积分、NT-pro BNP、CK-MB、cTnI单独及联合预测AMI患者PCI术预后的AUC分别为0.747、0.754、0.752、0.881、0.952。结论SYNTAX积分、血清NT-pro BNP、CK-MB、cTnI水平单独或联合检测均可有效预测AMI患者PCI术后MACCE的发生,联合检测预测效能显著提升。

CKMT1A、CRABP2、PAX8在子宫内膜癌患者血清中的表达水平及其与临床病理参数和预后的关系

目的探讨线粒体肌酸激酶1A(CKMT1A)、细胞视黄酸结合蛋白2(CRABP2)、配对盒基因8(PAX8)在子宫内膜癌患者血清中的表达水平及其与临床病理参数和预后的关系。方法选取2021年5月至2022年5月唐山市妇幼保健院收治的107例子宫内膜癌患者作为研究组。并在治疗后进行1年定期随访,根据患者复发情况分为复发组和未复发组。另选取同时期在该院进行体检的86例健康者作为健康组。采用酶联免疫吸附试验检测各组血清CKMT1A、CRABP2、PAX8水平,比较不同临床病理指标的子宫内膜癌患者血清CKMT1A、CRABP2、PAX8水平。采用Pearson相关分析子宫内膜癌患者血清CKMT1A、CRABP2、PAX8水平的相关性。绘制受试者工作特征(ROC)曲线分析血清CKMT1A、CRABP2、PAX8单独及三者联合检测对子宫内膜癌复发的预测价值。结果研究组血清CKMT1A、CRABP2、PAX8水平均高于健康组,差异均有统计学意义(P<0.05)。Pearson相关分析结果显示,血清CKMT1A与CRABP2水平呈正相关(r=0.437,P<0.001),CKMT1A与PAX8水平呈正相关(r=0.526,P<0.001),CRABP2与PAX8水平呈正相关(r=0.493,P<0.001)。不同肌层浸润、分化程度、淋巴结转移情况等的子宫内膜癌患者血清CKMT1A、CRABP2、PAX8水平比较,差异均有统计学意义(P<0.05),且血清CKMT1A、CRABP2、PAX8水平随着分化程度的降低及淋巴结的转移而升高(P<0.05)。复发组纳入12例患者,非复发组纳入95例患者。复发组血清CKMT1A、CRABP2、PAX8水平均高于非复发组,差异均有统计学意义(P<0.05)。ROC曲线分析结果显示,血清CKMT1A、CRABP2和PAX8单独预测子宫内膜癌复发的曲线下面积分别为0.886、0.850、0.811,均低于三者联合检测的0.978(Z三者联合-CKMT1A=2.318,P=0.020;Z三者联合-CRABP2=2.030,P=0.042;Z三者联合-PAX8=2.955,P=0.003)。结论子宫内膜癌患者血清CKMT1A、CRABP2和PAX8水平均高表达,三者表达与病理类型、分化程度、淋巴结转移情况等临床病理参数以及预后有关,可以作为评估子宫内膜癌患者预后的生物学指标。

24 h动态心电图联合cTnT、CK-MB在评价胸部恶性肿瘤患者放射性心脏损伤中的应用价值

目的探讨24 h动态心电图联合肌钙蛋白T(cTnT)、磷酸激酶同工酶MB(CK-MB)在评价胸部恶性肿瘤患者放疗诱发放射性心脏损伤(RIHD)中的应用价值。方法选取2018~2022年于海南医学院附属海南医院接受放疗的116例胸部恶性肿瘤患者,分别于不同时间(放疗前、放疗结束、放疗结束后3个月)行常规心电图、24 h动态心电图、心脏彩超、cTnT、CK-MB检查。根据是否出现RIHD将患者分成RIHD组(41例)和非RIHD组(75例)。比较两组患者放疗前、放疗结束时、放疗结束后3个月的cTnT、CK-MB水平,以及24 h动态心电图、常规心电图、心脏彩超、cTnT、CK-MB单项检测及24 h动态心电图、cTnT、CK-MB三者联合检测对胸部恶性肿瘤患者RIHD的评估价值。结果放疗前,RIHD组与非RIHD组的cTnT[(0.185±0.028)μg/L vs.(0.193±0.025)μg/L]、CK-MB[(19.21±4.07)U/L vs.(18.55±3.52)U/L]水平比较,差异均无统计学意义(t=1.579、1.913,P>0.05)。不同时间(放疗前、放疗结束时、放疗结束3个月)的cTnT、CK-MB水平比较,差异均有统计学意义(F=932.30、293.93,P<0.05)。LSD-t检验结果显示,放疗结束时、放疗结束后3个月,两组患者的cTnT、CK-MB水平均较放疗前升高,且RIHD组患者的cTnT、CK-MB水平均高于非RIHD组患者,差异均有统计学意义(P<0.05)。放疗结束后3个月,常规心电图检查与临床综合诊断结果的一致性较差(Kappa=0.306,P<0.05);24 h动态心电图检查、心脏彩超检查、cTnT、CK-MB单项检测具有中等一致性(Kappa=0.401、0.437、0.541、0.418,P<0.05);24 h动态心电图、cTnT、CK-MB联合检测的一致性最好(Kappa=0.796,P<0.05)。不同检测方法(24 h动态心电图、cTnT、CK-MB)联合评估的灵敏度、特异度、一致性、阳性预测值、阴性预测值均最高,即联合检测的真实性、可靠性、预测值均高于单项检测。结论24 h动态心电图联合cTnT、CK-MB评价胸部恶性肿瘤患者放疗诱发RIHD的真实性、可靠性、预测值均较高,可操作性强,患者可接受性强,临床推广性强。

老年慢性心衰患者血清cTnI、CK-MB水平与心电图QRS波的相关性研究

目的:分析老年慢性心力衰竭(CHF)患者血清心肌肌钙蛋白I(cTnI)、肌酸激酶同工酶MB(CK-MB)与心电图QRS波的相关性。方法:选取2020年9月至2023年10月六安市中医院接收的100例老年CHF患者,将其纳入观察组,另选同期于本院进行体检的100名老年健康者纳入健康对照组。所有受检者均接受血清cTnI、CK-MB检查及心电图检查,比较两组受检者的QRS波时限、血清cTnI、CK-MB水平。100例观察组患者再根据心电图QRS波时限是否异常分为两个亚组,即QRS异常组(52例,QRS波时限≥120 ms)和QRS正常组(48例,QRS波时限<120 ms);比较两个亚组患者一般资料,血清cTnI、CK-MB水平;分析老年CHF患者血清c Tn I、CK-MB水平与心电图QRS波的相关性。结果:与健康对照组比较,观察组血清c Tn I(1.912±0.401 vs. 0.861±0.173)μg/L、CK-MB(23.272±4.801 vs. 10.573±2.332)U/L水平更高,QRS波时限更长(126.761±17.452 vs. 104.475±13.351)μg/L,两组比较差异有统计学意义(t=24.159、23.802、10.145,P<0.05)。观察组患者经心电图检查发现,有52例患者出现心电图QRS波时限异常,QRS波时限平均为(141.641±12.581)ms;48例患者心电图QRS波时限正常,QRS波时限平均为(110.652±10.751)ms。QRS波时限异常组患者的血清c Tn I、CK-MB水平均高于QRS正常组患者,差异有统计学意义(t=7.534、10.362,P<0.05);经一般线性双变量Pearson检验结果显示,c Tn I、CK-MB两项血清指标与QRS波时限均呈正相关(r=0.395、0.453,P<0.05)。经logistic回归分析结果显示,血清c Tn I、CK-MB水平与心电图QRS波时限有关,过表达可能是心电图QRS波时限异常的风险因子(OR=4.444、1.445,P<0.05)。结论:老年CHF患者血清c Tn I、CK-MB水平异常升高,二者过表达与心电图QRS波时限异常有关,可能是QRS波时限异常的风险因子。

血清肌钙蛋白(cTnI)、肌红蛋白(Mb)及肌酸激酶同工酶(CK-MB)联合检测早期诊断急性心肌梗死的临床价值

目的探讨肌钙蛋白I(Cardiac Troponin I,cTnI)、肌红蛋白(Myoglobin,Mb)、肌酸激酶同工酶-MB(Creatine Kinase isoenzyme-MB,CK-MB)联合检测早期诊断急性心肌梗死的价值。方法选取2021年1月—2022年12月昆山市第二人民医院门诊60例急性心肌梗死患者及60例健康体检者,分别设为观察组与对照组,均检测cTnI、Mb、CK-MB,并比较两组检测值差异,分析联合检测与单项指标检测的诊断效能。结果观察组cTnⅠ(24.85±1.63)μg/mL为Mb(122.46±18.62)μg/L为CK-MB(42.54±8.29)U/L,均较对照组高,差异有统计学意义(t=114.186、38.386、36.493,P均<0.05)。联合检测诊断准确率为95.83%,灵敏度为96.67%,高于cTnI、Mb、CK-MB单独检测值,差异有统计学意义(P均<0.05);特异度为95.00%,与单独检测对比,差异无统计学意义(P>0.05)。结论急性心肌梗死患者cTnI、Mb、CK-MB异常升高,该三指标联用可提高诊断效能。

慢性病毒性肝炎患者血清CK-MB的临床意义

目的 探讨慢性病毒性肝炎患者肌酸激酶MB同工酶(CK-MB)与肝硬化的相关性。方法 收集113例慢性病毒性肝炎患者的临床资料,统计患者入院1~2 d内CK-MB活性法检测结果,将患者分为慢性病毒性肝炎组(肝炎组,44例)及肝炎后肝硬化组(肝硬化组,69例),并对肝硬化组依照Child-Pugh分级标准分为A组、B组、C组,比较各组CK-MB水平。结果 肝炎组CK-MB(14.6±4.8)U/L,肝硬化组(42.0±22.7)U/L,差异有统计学意义(P<0.01),A组、B组、C组分别为(22.2±10.6)U/L、(44.5±13.7)U/L、(63.4±24.4)U/L,三组差异有统计学意义(P<0.01),且均值逐级升高。结论 对于有慢性病毒性肝炎病史的患者,在排除肿瘤、冠心病、心肌病、心肌梗死、免疫系统及严重感染性疾病等因素后,出现CK-MB升高考虑存在肝硬化可能,并能间接反映肝硬化的严重程度。

TYG指数、血小板参数及血清CK-MB水平与急性STEMI患者主要不良预后事件的相关性

目的分析三酰甘油葡萄糖乘积(TYG)指数、血小板参数及血清肌酸激酶同工酶(CK-MB)水平与急性ST段抬高型心肌梗死(STEMI)患者主要不良预后事件的关系。方法回顾性收集2021年2月—2022年2月成都市第三人民医院收治的205例STEMI患者临床资料,所有患者均展开为期12个月的随访,依据随访期间是否出现不良心血管事件(MACE)设为发生组(n=64)与未发生组(n=141),分析两组一般情况,并探讨TYG、血小板分布宽度(PDW)、平均血小板体积(MPV)及CK-MB与STEMI预后的相关性。结果通过单因素及多因素Logistic回归分析,结果显示糖尿病史、CK-MB、PDW、MPV、TYG指数及LVEF均为STEMI发生MACE的独立危险因素(P<0.05);绘制CK-MB、PDW、MPV及TYG指数对STEMI发生MACE的受试者工作特征(ROC)曲线,结果显示CK-MB、PDW、MPV及TYG指数预测MACE的预测价值分别为0.828、0.621、0.728及0.825。结论TYG指数、PDW、MPV及血清CK-MB水平与STEMI患者发生MACE独立相关,监测TYG指数、PDW、MPV及血清CK-MB水平对预测MACE的出现具有一定临床价值。