类风湿关节炎患者抗MCV、抗CCP抗体与RF诊断价值比较

目的评价类风湿关节炎(RA)患者的血清学辅助诊断指标:抗突变型瓜氨酸波形蛋白(anti-mutated citrullinated vimentin,anti-MCV)抗体、抗环瓜氨酸多肽(anti-cyclic citrullinated peptides,anti-CCP)抗体和类风湿因子(rheumatoid factor,RF)的临床意义。方法用ELISA法测定76例RA患者、35例其他自身免疫性疾病患者和40例健康体检者血清抗MCV抗体、抗CCP抗体和RF,计算单项或联合检测的敏感性和特异性,绘制ROC曲线,计算ROC曲线下面积。结果单指标检测,抗MCV抗体对RA的敏感性为84.21%(64/76),特异性为96.00%(72/75),优于抗CCP抗体及RF(均P<0.01)。抗MCV抗体的ROC曲线下面积最大(面积0.966,95%可信区间0.940-0.992),临床诊断效能优于抗CCP抗体及RF。三指标联合检测敏感性可提高至94.74%,但以抗MCV抗体和抗CCP抗体两项联合检测的敏感性和特异性之和最大。结论抗MCV抗体为一高度敏感的新的RA诊断血清学标志物,其与抗CCP抗体和RF联合检测,对...     

类风湿关节炎五项诊断指标的应用价值评价

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5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150例BA、32例SLE、30例强直性脊柱炎(OA)、20例骨关节炎(AS)、20例干燥综合征(SS)、20例结缔组织病(CTD)患者和40名健康人血清标本.采用ELISA分析血清中抗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,采用速率散射比浊法检测类风湿因子(RF)水平.分别计算和比较单项标志物诊断RA的效能;选择高敏感度与高特异度抗体联合检测,并计算其与RF联合诊断RA的效能.结果 5种抗体在RA患者组中的阳性率显著高于疾病对照组和健康对照组(X2分别为88.5、76.0、279.2、88.2、94.8,P均＜0.05).除AKA抗体阳性率较低(37.3%)外,其余抗体在RA中的阳性率差异无统计学意义(X2分别为21.9、9.4、20.2、43.2、41.6,P均＞0.05).单项抗体检测中,抗MCV和抗GPI抗体的敏感度最高,分别为78.0%和83.3%,抗CCP抗体的特异度最高,为97.1%,具有高特异度(96.1%)的AKA抗体敏感度最低,仅为49.4%.抗MCV/抗CCP抗体联合检测的敏感度和特异度最高,分别为92.7%和96.9%.RF/抗GPI/抗CCP抗体联合检测的敏感度和特异度为90.7%和96.9%,RF/抗MCV/抗CCP抗体联合检测的敏感度和特异度为94.0%和96.9%.结论 抗MCV和抗GPI抗体诊断RA的敏感度最高;抗CCP抗体的特异度最高,AKA抗体虽然具有较高的特异度,但敏感度最低,联合检测可弥补单项抗体检测造成的RA漏诊,RW抗GPI/抗CCP抗体和RE/抗MCV/抗CCP抗体的组合模式可同时提高诊断RA的敏感度和特异度.     

抗突变型瓜氨酸波形蛋白抗体在类风湿关节炎诊断中的应用价值

目的了解抗突变型瓜氨酸波形蛋白(MCV)抗体在类风湿关节炎(RA)诊断中的意义,并比较抗MCV抗体与类风湿因子(RF)、红细胞沉降率(ESR)、抗环瓜氨酸多肽(CCP)抗体的相关性。方法对90例RA患者(RA组)、56例非RA患者(非RA组)和85例健康体检人员(对照组),应用酶联免疫吸附试验(ELISA)检测血清中的抗MCV抗体,同时检测87例RA患者类风湿因子(RF)、ESR、CCP抗体指标,用统计学方法分析抗MCV抗体的诊断价值。结果抗MCV抗体对RA诊断的敏感性为78%,特异性为69%,阳性预测值为73%,阴性预测值为76%。抗MCV抗体的平均浓度依次为(459±441)U/mL(RA组)、(42±136)U/mL(非RA组)、(46±152)U/mL(对照组),RA组的平均抗体浓度较高。RA组活动期[(600±420)U/mL]比慢性期[(70±202)U/mL]抗MCV抗体的平均浓度显著增高。抗MCV抗体与抗CCP抗体(r=0.602,P=0.000)的相关性较与RF(r=0.237,P0.05)的相关性强,与ESR无相关性(P=0.53)。结论抗MCV抗体在RA中具有较高的敏感性和特异性,与抗CCP抗体、RF有正相关性,联合抗CCP抗体、RF检测可提高RA的诊断效率。动态监测抗MCV抗体的浓度可用于判断RA的病情活动程度。     

RF、抗CCP抗体、GPI和抗RA33抗体联合检测在类风湿关节炎中的临床意义

目的通过联合检测类风湿因子(RF)、抗环瓜氨酸(CCP)抗体、葡萄糖-6-磷酸酶(GPI)和抗RA33抗体,探讨其在类风湿关节炎(RA)中的诊断意义。方法选取确诊的RA患者126例(RA组),其他自身免疫病患者60例(自免组)及体检健康人群60例(对照组)作为研究对象。分析单独和联合检测RF、抗CCP抗体、GPI和抗RA33抗体在RA诊断中的作用。结果 RA组4项指标与对照组比较均升高,差异有统计学意义(P0.05);自免组RF与对照组比较也升高,差异有统计学意义(P0.05)。RA组4项指标与自免组比较均升高,差异有统计学意义(P0.05)。RF对RA的敏感度和特异度为77.77%和63.33%;抗CCP抗体对RA的敏感度和特异度为69.04%和95.00%;GPI对RA的敏感度和特异度为25.40%和100.00%;抗RA33抗体对RA的敏感度和特异度为27.77%和99.16%。联合检测两项,特异度由原来的63.33%增加到85.00%,联合3个指标,特异度就增加到了93.33%,联合4项指标,特异度高达100.00%。结论 RF、抗CCP抗体、GPI和抗RA33抗体4项指标联合用于RA诊断,其敏感度和特异度都有了很大的提高,具有临床意义。     

RF、抗CCP抗体、抗AKA及CRP联合检测在类风湿关节炎诊断中的应用价值

目的探究类风湿因子(RF)、抗环瓜氨酸肽(CCP)抗体、抗角蛋白抗体(AKA)及C反应蛋白(CRP)联合检测用于类风湿关节炎(RA)的诊断价值。方法选择2016年12月至2019年1月于该院住院治疗的65例RA患者及62例非RA的自身免疫性疾病患者作为研究对象,测定两组患者RF、抗CCP抗体、抗AKA及CRP水平,比较两组患者各项指标阳性表达情况,分析各项指标单项或联合检测的诊断效能。结果 RA组患者RF、抗CCP抗体、抗AKA、CRP阳性率均明显高于非RA组,差异均有统计学意义(P<0.05);抗AKA、抗CCP抗体对RA的诊断特异度高于RF、CRP,RF对RA的诊断特异度高于CRP,差异均有统计学意义(P<0.05);RF联合CRP、抗CCP抗体联合抗AKA、抗CCP抗体联合CRP、抗AKA联合CRP及3项指标联合、4项指标联合诊断的灵敏度明显高于单项指标检测;联合检测中,抗CCP抗体+抗AKA诊断的特异度及准确度最高;4项指标联合诊断的灵敏度、特异度、准确度、阳性预测值、阴性预测值分别为92.31%、40.32%、66.93%、61.86%、83.33%。结论 RF、抗CCP抗体、抗AKA及CRP对RA具有一定的诊断价值,4项指标联合检测可提高灵敏度及特异度,可提高RA的早期诊断效能。     

抗CCP抗体、抗MCV抗体和RF抗体联合检测与磁共振成像诊断类风湿关节炎相关性分析

目的分析抗环瓜氨酸肽抗体(抗CCP抗体)、抗突变型瓜氨酸波形蛋白抗体(抗MCV抗体)和类风湿因子(RF)联合检测结果与磁成振成像结果相关性,探讨3种抗体在类风湿骨侵蚀性关节炎亚型诊断中的临床意义。方法收集300例类风湿关节炎患者,300例健康体检者血清标本,检测其抗CCP抗体、抗MCV抗体和RF,并行磁共振成像检查,对结果进行相关性分析。结果抗CCP抗体、抗MCV抗体和RF联合检测的灵敏度为92.0%,行磁共振成像检查灵敏度为97.3%,二者检查结果相关性良好,Kappa系数等于0.78。结论抗CCP抗体、抗MCV抗体和RF都是诊断类风湿侵蚀性关节炎亚型的良好指标,3种指标联合检测与磁共振成像具有中度一致性,可以替代磁共振成像检查,减轻患者经济负担,广泛应用于RA筛查之中。     

探讨抗CCP抗体与RF联合检测在类风湿关节炎中的临床意义

目的探讨抗环瓜氨酸肽(CCP)抗体和类风湿因子(RF)联合检测对类风湿性关节炎(RA)的临床意义。方法对55例RA患者及52例非RA患者进行抗CCP抗体和RF的测定,用酶联免疫吸附试验(ELISA)检测血清抗CCP抗体,用免疫比浊法定量检测RF。结果在RA组检出抗CCP抗体和RF阳性率明显高于非RA组,RF联合抗CCP抗体用于疑似RA和确诊为RA检测的阳性率分别为34.6%和63.6%;RF单独检测用于疑似RA和确诊1年以上的RA检测的阳性率分别为21.2%和45.5%;而单独将抗CCP抗体用于检测两组病例的阳性率分别为26.9%和47.2%。结论抗CCP抗体是类风湿的特异性诊断指标,与RF联合检测有助于提高RA临床诊断效能。     

抗CCP抗体、RF联合检测对类风湿关节炎的诊断价值

探讨血清抗环瓜氨酸多肽(CCP)抗体和类风湿因子(RF)联合检测在类风湿关节炎(RA)中的临床应用价值。对124例血清(类风湿关节炎组82例、其它自身免疫病组31例及正常人31例)采用ELISA方法检测抗CCP抗体、免疫比浊法检测RF浓度,比较两者及联合测定对RA的诊断价值。RA组抗CCP抗体阳性率82.3%和RF阳性率88.7%均明显高于非RA组及对照组,差异具有统计学意义(P0.05)。抗CCP抗体+RF联合敏感性(90.3%)和特异性(96.8%)明显优于单独RF敏感性(88.7%)和特异性(82.3%),同时优于单独抗CCP抗体敏感性(82.3%)及特异性(93.5%)。血清中抗CCP抗体和RF检测可用于RA的临床诊断,两者联合检测具有较高的敏感性和特异性,有助于对RA早期诊断和治疗。     

联合检测抗CCP抗体和RF在诊断类风湿关节炎中的意义

目的探讨联合检测抗环瓜氨酸肽(抗CCP抗体)和类风湿因子(RF)在诊断类风湿关节炎(RA)中的意义。方法RA患者65例,其他自身免疫性疾病组47例,健康对照组50例,采用胶乳增强免疫比浊法检测抗CCP抗体和RF的水平,统计比较对RA诊断的敏感性、特异性、阳性预测值,阴性预测值。结果 RA组中的RF的特异性为83.51%,抗CCP抗体的特异性为94.85%,联合检测特异性为95.88%,RA组中的RF阳性预测值为75.38%,抗CCP抗体的阳性预测值为85.80%,联合检测阳性预测值为90.91%,经χ2检验明显高于其他自身免疫性疾病组和健康对照组(P0.01)。结论联合检测抗CCP抗体和RF可以提高类风湿关节炎诊断的特异性和阳性预测值,有助于其早期诊断,具有较高的临床价值。     

3项联合检测对类风湿关节炎的诊断价值

目的探讨类风湿因子(RF)、抗环瓜氨酸多肽抗体(抗CCP)和抗角蛋白抗体(AKA)在类风湿关节炎(RA)中联合检测的价值。方法采用化学发光方法测定抗CCP,采用间接免疫荧光法检测AKA,采用免疫比浊法测定RF。结果抗CCP的阳性率在RA患者中为65.45%,在非RA中为3.33%,并且3项指标对RA诊断的敏感性和特异性分别为抗CCP 65.45%;97.83%,AKA 33.64%、96.83%;RF 75.45%、78.98%。RA患者的3项指标阳性率均明显高于非RA患者和健康体检者,差异有统计学意义(P<0.05)。结论抗CCP具有较好的灵敏度和特异性;联合检测抗CCP、AKA与RF可明显提高对RA诊断的特异性。     

Effect of 5-fluorouracil, mitoxantrone, methotrexate, and vincristine on the antibacterial activity of ceftriaxone, ceftazidime, cefotiam, piperacillin, and netilmicin

Using the checkerboard agar dilution technique, antibacterial activity and in vitro interactions of 4 antineoplastic agents and 5 antimicrobial drugs were examined against 56 strains of 7 bacterial species. 5-fluorouracil was found to inhibit all strains of Staphylococcus aureus and of Staphylococcus epidermidis at a concentration of 0.8 micrograms/ml or less. 84% of all gram-negative strains were inhibited synergistically when 5-fluorouracil was combined with beta-lactam antibiotics. Methotrexate and cefotiam were antagonistic in 42% of all combinations, especially when tested against Escherichia coli and Klebsiella pneumoniae.     

Susceptibilities of non-Pseudomonas aeruginosa gram-negative nonfermentative rods to ciprofloxacin, ofloxacin, levofloxacin, D-ofloxacin, sparfloxacin, ceftazidime, piperacillin, piperacillin-tazobactam, trimethoprim-sulfamethoxazole, and imipenem.

Agar dilution MICs of 10 agents against 410 non-Pseudomonas aeruginosa gram-negative nonfermentative rods were determined. MICs at which 50 and 90% of the isolates were inhibited, respectively, were as follows (in micrograms per milliliter): sparfloxacin, 0.5 and 8.0; levofloxacin, 1.0 and 8.0; ciprofloxacin, 2.0 and 32.0; ofloxacin, 2.0 and 32.0; D-ofloxacin, 32.0 and > 64.0; ceftazidime, 8.0 and 64.0; piperacillin with or without tazobactam, 16.0 and > 64.0; trimethoprim-sulfamethoxazole, 0.5 and > 64.0; imipenem, 2.0 and > 64.0. With the exception of those for Stenotrophomonas maltophilia, Burkholderia cepacia, and Alcaligenes faecalis-A. odorans, agar dilution MICs for all strains tested were within 1 dilution of inhibitory (bacteriostatic) levels as determined by time-kill methodology.     

Comparative ototoxicity of ribostamycin, dactimicin, dibekacin, kanamycin, amikacin, tobramycin, gentamicin, sisomicin and netilmicin in the inner ear of guinea pigs

Nine aminoglycoside antibiotics, ribostamycin (RSM), dactimicin (DAC), dibekacin (DKB), kanamycin (KM), amikacin (AMK), netilmicin (NTL), tobramycin (TOB), gentamicin (GM) and sisomicin (SISO) were administered intramuscularly to guinea pigs for 4 weeks, and ototoxicity and drug concentration in the inner ear fluid were determined. RSM and DAC showed the weakest ototoxicity against the cochlea and vestibular organs. AMK and KM were more toxic to cochlea than vestibular organs. DKB, TOM, GM and SISO were equally toxic to vestibular organs and cochlea. NTL was more toxic to vestibular organs than cochlea. As judged from the pinna reflex response and hair cell damage in the cochlea, the order of auditory toxicity was the following: SISO greater than GM greater than TOB greater than AMK greater than DKB greater than KM greater than NTL, DAC RSM, whereas the vestibular toxicity was in the following order: SISO greater than GM greater than DKB greater than TOB greater than NTL greater than AMK greater than KM greater than DAC, RSM. RSM, causing the weakest ototoxicity, showed a low drug concentration in the inner ear fluid, while GM, causing severe ototoxicity, showed the highest drug level under the same conditions.     

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Zimmermann PG. Philadelphia: Hanley & Belfus, 2002, 243 pp, ISBN 1-56053-529-6.