新生儿肺炎PCT和炎性因子水平表达及其意义

目的研究新生儿肺炎(NP)患儿血清高敏C反应蛋白(hs-CRP)、降钙素原(PCT)、白细胞介素-6(IL-6)水平表达及其意义。方法选取2017年1月-2018年2月韶关市曲江区妇幼保健计划生育服务中心诊治的NP患儿80例,按细菌感染情况分为观察1组和观察2组,各40例。选择同期40例健康新生儿作为对照组。测定并比较三组的hs-CRP、PCT和IL-6水平。结果观察1组血清PCT、hs-CRP和IL-6水平明显高于观察2组和对照组,差异均有统计学意义(P<0.05)。观察1组血清PCT、hs-CRP和1L-6检测阳性率明显高于观察2组和对照组,差异均有统计学意义(P<0.05),且观察1组血清PCT、hs-CRP和1L-6诊断NP的敏感度均明显高于观察2组,差异均有统计学意义(P<0.05);观察组各指标特异度与观察2组比较差异无统计学意义(P>0.05)。结论血清hs-CRP、PCT、IL-6水平可作为NP患儿的辅助鉴别指标,为抗生素的合理使用和疗效提供依据。     

长程体外反搏对高胆固醇血症猪高级氧化蛋白产物和高敏C反应蛋白的影响

目的探讨长程体外反搏对高胆固醇血症猪血清中高级氧化蛋白产物(AOPP)和高敏C反应蛋白(hs-CRP)的影响.方法 18头雄性乳猪随机分为正常饲养组(n=6)、高脂饲养组(n=6)及高脂饲养+体外反搏组(n=6).后2组通过高脂饲养复制高胆固醇血症猪模型并对高脂饲养+体外反搏组进行36 d共36 h的长程增强型体外反搏.分别于分组饲养前、反搏前、反搏中期和反搏结束时留取3组动物静脉血,采用分光光度法检测血清AOPP浓度,采用乳胶凝集反应法检测血清hs-CRP浓度.结果高脂饲养组和高脂饲养+体外反搏组经高脂饲养后血清总胆固醇和低密度脂蛋白明显升高(P<0.05).血清AOPP和hs-CRP浓度在分组饲养前组差异无统计学意义(P>0.05).反搏前、反搏中期和反搏结束时,高脂饲养组与高脂饲养+体外反搏组血清AOPP和hs-CRP浓度较正常饲养组同时期均有显著增高(P<0.05);而反搏中期和反搏结束时高脂饲养+体外反搏组血清AOPP浓度较高脂饲养组显著降低[(95.38±12.66)μmol/L比(128.46±12.55)μmol/L;(85.78±10.33)μmol/L比(158.22±16.32)μmoL/L,P<0.05];且反搏中期和反搏结束时高脂饲养+体外反搏组血清hs-CRP浓度较高脂饲养组也有显著降低[(0.47±0.14)mg/L比(0.62±0.32)mg/L;(0.47±0.16)mg/L比(0.59±0.43)mg/L,P<0.05].结论 AOPP和hs-CRP参与了高胆固醇血症猪的发病过程.长程体外反搏可能通过减轻机体体内氧化应激和微炎性反应过程,从而阻止高胆固醇血症的病理生理进程.     

肺炎支原体抗体联合超敏C反应蛋白检测在小儿支原体肺炎感染诊断中的临床价值

目的 调查研究小儿支原体肺炎感染患者肺炎支原体抗体(MP-Ab)及超敏C反应蛋白(hs-CRP)水平的变化,探讨肺炎支原体抗体与超敏C反应蛋白联合检测对小儿支原体肺炎感染的临床诊断价值.方法 肺炎支原体肺炎患儿110例,对照儿童120例,均按照《诸福棠实用儿科学》中支原体肺炎诊断标准确诊,两组分别进行MP-Ab、hs-CRP检测,肺炎支原体抗体判定以MP-Ab滴度≥1:160为阳性,超敏C反应蛋白判定以hs-CRP＞ 5mg/L为阳性.通过分析MP-Ab检测法与MP-Ab联合hs-CRP检测法敏感性、特异性差异,探讨MP-Ab联合hs-CRP检测法诊断小儿支原体肺炎感染的临床意义.结果 肺炎支原体肺炎患儿组MP-Ab滴度≥1∶160比率高于正常对照组,肺炎支原体肺炎患儿组hs-CRP高于正常对照组,差异均有统计学意义(P＜0.05);MP-Ab检测法诊断肺炎支原体肺炎的灵敏度为78.2％,MP-Ab联合hs-CRP检测法诊断肺炎支原体肺炎的灵敏度为89.1％,MP-Ab联合hs-CRP检测肺炎支原体肺炎的灵敏度高于MP-Ab检测法,差异有统计学意义(P＜0.05);MP-Ab检测法诊断肺炎支原体肺炎的特异度为94.2％,MP-Ab联合hs-CRP检测法诊断肺炎支原体肺炎的特异度为89.2％,差异无统计学意义(P＞0.05).结论 MP-Ab与hs-CRP联合检测能提高小儿支原体肺炎感染的诊断率,具有较高临床价值.     

Is multiple sclerosis a risk factor for atherosclerosis?

BackgroundMultiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system. We aimed to discuss possible predisposing factors to atherosclerosis such as carotid intima-media thickness (CIMT) and high-sensitivity C-reactive protein (Hs-CRP) levels in MS.MethodsThirty-five ambulatory patients with relapsing-remitting MS (RRMS) (22 females and 13 males) and 34 healthy controls (21 females and 13 males) with similar demographic variables were included. Blood cell counts, cholesterol levels, vitamin D and B12, Hs-CRP levels, body mass index (BMI), history of smoking, and CIMT of both groups, Expanded Disability Status Scale (EDSS) scores, and disease duration of patients were recorded. Patients with a history of other vascular diseases such as hypertension, diabetes mellitus, peripheral artery disease, and acute relapses were excluded.ResultsSixty-nine participants were included. The mean age of the study population was 35.8 ± 7.1 years. Right CIMT was significantly greater in the patient population (P < 0.001). Spearman's correlation coefficient between age and right CIMT was r = 0.41, P = 0.01. When we compared the Hs-CRP with a cut-off value of ≤ 3, the right, left, and mean CIMT levels were not statistically significant (P = 0.17; P = 0.22; P = 0.15). The mean serum vitamin D levels were higher in the patient group and this was statistically significant (P < 0.001). The statistically significant factors identified with univariate analysis with P < 0.2 were further entered into multivariate modelling.ConclusionCIMT seems to be affected in patients with MS by means of the disease itself and age. Thus, CIMT might reflect the predisposition to subclinical atherosclerosis more than Hs-CRP. Further investigation in a large MS population is still needed.     

The impact of obstructive sleep apnoea severity on cardiac structure and injury

BackgroundObstructive sleep apnoea (OSA) is an important factor in the development and progression of heart failure (HF). The prevalence of OSA is higher in patients with HF than in the general population. We sought to test the hypothesis that OSA severity was predictive of ventricular function and cardiac injury [as assessed by high-sensitivity cardiac troponin I(hs-cTnI)].MethodsA total of 60 patients were recruited after evaluation for sleep disturbances using the Jenkins Sleep Questionnaire (JSQ) and Epworth Sleepiness Scale (ESS). Subsequently, they underwent polysomnography thus confirming the diagnosis of OSA and were equally divided into three groups according to OSA severity grade. Following polysomnography, the next morning patients underwent venous blood sampling and echocardiography.ResultsWe observed a statistically significant association (P = 0.009) between diastolic dysfunction grades and severity grades of OSA. All the three diastolic dysfunction variables E/A ratio, deceleration time and E/e’ ratio had a significant association(P < 0.05) with severity grades of OSA. There was a marginally significant positive correlation (ρ = 0.3244, p = 0.04) between AHI events per hour and mitral E/e’ ratio. There was a statistically significant association(P < 0.001) between hs-cTnI value among different severity grades of OSA.ConclusionsHere in our study, we found OSA a potential risk factor for development of myocardial injury and diastolic dysfunction. Severe grades of OSA are associated with higher grades of diastolic dysfunction and circulating levels of hs-cTnI. These data are consistent with the notion of a vicious cycle of frequent apnoea's or hypoxemia and recurrent myocardial injury, which could increase the risk of heart failure especially diastolic dysfunction in OSA.     

类风湿关节炎六种指标联合检测的临床意义

目的评价分析抗瓜氨酸化波形蛋白(MCV)抗体、抗葡萄糖-6-磷酸异构酶(GPI)抗体等六项指标在类风湿关节炎(RA)患者血清中的表达与疾病的相关性及应用价值。方法收集110例RA、26例SLE、23例强直性脊柱炎(OA)、20例干燥综合征(SS)患者和50名健康人血清标本,用ELISA检测血清中抗MCV、抗GPI和抗环瓜氨酸肽(CCP)抗体水平,采用间接免疫荧光法检测抗角蛋白(AKA)抗体,采用散射比浊法检测类风湿因子(RF)和hs-CRP水平。结果 4种抗体在RA患者组中的阳性率显著高于非RA疾病组和健康对照组。除AKA抗体阳性率较低(41.8%)外,其余抗体在RA组中的阳性率差异无统计学意义。结论抗MCV和抗GPI抗体诊断RA的敏感度最高;抗CCP抗体的特异性最高,AKA抗体具有较高的特异性,但敏感度最低,联合检测可弥补单项抗体检测造成的漏诊。     

不同剂量阿托伐他汀对急性脑梗死患者超敏C反应蛋白S100B蛋白水平及神经功能缺损的影响

目的：观察不同剂量阿托伐他汀对急性脑梗死患者超敏C反应蛋白(hs-CRP)、S100B水平及神经功能的影响,探索大剂量阿托伐他汀对脑梗死急性期治疗的益处。方法选择急性脑梗死患者96例,随机分为治疗组与对照Ⅰ组、对照Ⅱ组。治疗组服用阿托伐他汀40 mg/d,对照Ⅰ组服用阿托伐他汀20 mg/d,对照Ⅱ组服用阿托伐他汀10 mg/d,其余治疗均相同。分别于治疗前及治疗7、14 d后检测患者血清 hs-CRP和S100B水平,评价神经功能缺损程度。结果治疗7 d后,治疗组 hs-CRP水平明显下降(P<0．05),对照Ⅰ、Ⅱ组hs-CRP水平下降均不明显(P>0．05)。治疗组S100B水平较治疗前显著下降(P<0．05),对照Ⅰ、Ⅱ组S100B水平变化不明显(P>0．05)。治疗14 d后,治疗组hs-CRP水平进一步下降(P<0．05),对照Ⅰ、Ⅱ组血清hs-CRP水平有明显下降(P<0．05)。治疗组S100B水平进一步下降(P<0．05),对照Ⅰ组S100B水平较治疗前明显下降(P<0．05),对照Ⅱ组S100B水平变化不明显(P>0．05)。治疗后,3组神经功能缺损情况均较治疗前有不同程度改善(P<0．05),与对照组相比治疗组改善更明显。结论相对20 mg/d、10 mg/d的阿托伐他汀治疗急性脑梗死,40 mg/d的剂量可更明显降低hs-CRP、S100B蛋白水平,改善患者的神经功能缺损,有益于改善患者预后。     

原发性高血压患者颈动脉内膜中层厚度与hsCRP Hcy及血压变异性相关性研究

目的：研究原发性高血压患者血浆中同型半胱氨酸( Hcy)及超敏C反应蛋白( hsCRP)的含量,探讨其与原发性高血压患者颈动脉内膜中层厚度( IMT)和动态血压变异性( BPV)之间的关系。方法对180例原发性高血压患者行颈动脉彩超测定IMT,按IMT厚度分为,IMT正常组、IMT增厚组、IMT斑块组;并检测24 h动态血压、血Hcy、血清hsCRP。结果原发性高血压患者颈动脉IMT增厚组、颈动脉IMT斑块组血清hsCRP、Hcy及BPV明显高于颈动脉IMT正常组,差异有统计学意义(均P<0．05)。结论原发性高血压患者血清Hcy、hsCRP、以及血压变异性与颈动脉粥样硬化之间密切相关。     

高敏C反应蛋白、肌红蛋白、心肌肌钙蛋白和肌酸激酶同工酶联合检测在急性心肌梗死诊断中的应用

目的探究高敏C反应蛋白(hs-CRP)、肌红蛋白(Myo)、心肌肌钙蛋白T(cTnT)和肌酸激酶MB同工酶(CK-MB)联合检测对急性心肌梗死(AMI)诊断中的应用。方法随机选取并回顾性分析2011年6月至2012年66月于我院诊断为急性心肌梗死患者70例及同时期进行体检的健康人群70例。研究组为急性心梗患者,发病均在6h内;对照组为签署知情同意书的体检健康人群。采用化学发光法测定两组研究对象hs-CRP、MYO、cTnT、CK-MB四项指标的阳性率及研究组发病3h、6h、12h、24h内的指标变化。结果观察两组患者高敏C反应蛋白(hs-CRP)、肌红蛋白(Myo)、心肌肌钙蛋白T(cTnT)和肌酸激酶同工酶(CK-MB)检测值,研究组检测值明显高于对照组,差异存在统计学差异(P0.05);hs-CRP最高峰出现在发病后12-24h之间,Myo最高峰出现在发病后6-12h内,cTnT最高峰出现在发病后6-12h,CK-MB最高峰出现在发病后12-24h内。结论 AMI患者血清内Myo、hs-CRP、CK-MB和cTnT值均在AMI发病2h后不同程度的升高,四项联合检测对AMI的诊断中有较大参考价值,可作为AMI发生早期有效实验室指标。     

重组人肿瘤坏死因子相关弱凋亡诱导因子对小鼠主动脉内皮舒张功能及凝血相关因子的影响

目的 采用重组人肿瘤坏死因子相关弱凋亡诱导因子（rhTWEAK）经腹腔注射,诱导血管内皮损伤模型,观察rhTWEAK对小鼠主动脉内皮舒张功能和凝血相关因子的影响。方法 3～4周龄C57BL小鼠32只,随机分成4组,每组8只,腹腔注射各药物：①rhTWEAK组：rhTWEAK按5 μg/（kg·d）的量溶于生理盐水,共0.3 mL,腹腔注射,连续注射7天;②rhTWEAK＋抗rhTWEAK组：先给予抗rhTWEAK腹腔注射,15 min后再给予rhTWEAK注射;③IgG组：给予小鼠非特异性IgG腹腔注射;④对照组：给予0.3 mL生理盐水注射。分别在干预1周后眼球取血,分离上清;取小鼠胸主动脉段进行血管舒张功能的检测。酶联免疫吸附法检测血浆中内皮型一氧化氮合酶（eNOS）、高敏C反应蛋白（hs-CRP）、一氧化氮（NO）、组织因子（TF）、组织因子途径抑制物（TFPI）含量。结果 ①与对照组、rhTWEAK＋抗rhTWEAK组、IgG组相比,rhTWEAK组内皮依赖性血管舒张功能、血浆中eNOS、NO、TFPI水平明显降低,TF水平明显升高,均有统计学意义（均P<0.05）;血浆中hs-CRP含量未见明显改变（P>0.05）;②rhTWEAK组、IgG组与对照组相比,血管内皮舒张功能、血浆中NO、TF、TFPI、eNOS、hs-CRP含量变化均无统计学差异（均P>0.05）。结论 rhTWEAK可诱导内皮功能紊乱和凝血相关因子含量的改变,这可能是TWEAK参与动脉粥样硬化早期血管内皮损害的机制。