基于流体动力学的mA20质粒及其突变体转染对实验性小鼠内毒素血症的治疗作用

目的 研究mA20及其突变体mA20-ZnF4-7质粒对脂多糖(lipopolysaccharide, LPS)攻击所致实验性内毒素血症小鼠的治疗作用.方法 用LPS攻击小白鼠制备内毒血症动物模型.按10 μg质粒/1.6 ml生理盐水比例溶于生理盐水中,采用基于流体动力学基因转染方法对实验组小鼠进行质粒注射.以ELISA检测各组血浆和组织TNF-α、IL-1β表达.12 h观察组织病理变化.结果 ①mA20质粒治疗组、mA20-ZnF4-7质粒治疗组的TNF-α在各时间点的表达分别为:6 h:(201.797±4.789)、(235.710±6.108) pg/ml,12 h:(236.580±7.497)、(255.130±7.827) pg/ml,24 h:(154.551±16.460)、(223.246±11.316) pg/ml;两组间无显著性差异(P＞0.05);与单纯内毒素组、空质粒组的TNF-α表达比较有显著性降低(P＜0.05).②mA20质粒治疗组、mA20-ZnF4-7质粒治疗组的IL-1β在各时间点的表达分别为:6 h:(87.103±3.840)、(101.586±2.486) pg/ml,12 h:(83.655±4.973)、(94.460±3.110) pg/ml,24 h:(77.678±6.555),(87.103±4.826) pg/ml;该两组间无显著性差异(P＞0.05);与单纯内毒素组、空质粒组的IL-1β表达比较有显著性降低(P＜0.05);各时间点之间比较无明显差别(P＞0.05).③病理学观察结果显示:mA20治疗组、mA20-ZnF4-7治疗组的肝、肺损伤均较单纯内毒素组、空质粒组轻;与生理盐水对照组相比,肝、肺损伤无明显差别(P＞0.05).结论 "基于血流动力学的基因转染方法"能有效地把目的质粒DNA转入肝、肺;对实验性类毒素血症小鼠体外转染mA20-ZnF4-7和mA20有相似的治疗作用,这为临床应用提供一定的实验基础.     

FK506预处理对内毒素诱导急性肝损伤的保护作用

目的:探讨FK506预处理对内毒素急性肝损伤小鼠的保护研究作用及其可能机制.方法:LPS ip诱导小鼠急性肝损伤模型,实验小鼠随机分为LPS、LPS FK组,绘制生存曲线,行两组间生存率动态分析;测定LPS注射后0,0.5,2,4,6,8 h血清TNF-α,IL-1β,ALT,AST含量,光镜下观察肝组织病理改变.结果:LPS FK组小鼠72 h存活率为 46.67%,而LPS组小鼠仅10.00%(P<0.01).两组小鼠血清TNF-α、IL-1β含量变化均呈先升后降趋势,TNF-α于2 h达峰值,IL-1β于4 h达峰值,相同时间LPS FK组TNF-α、IL-1β含量低于LPS组(P均< 0.01).LPS FK组小鼠8 h血清ALT、AST含量分别为(1.06±0.15)、(1.21±0.13) μkat/L,低于LPS组(2.51±0.47)、(3.97±0.36) μkat/L(P均< 0.01).肝组织病理示LPS FK组小鼠肝细胞肿胀坏死、胞质嗜酸性变及肝小叶炎细胞浸润均较LPS组减轻.结论:FK506预处理可减轻内毒素所致的急性肝损伤;FK506可能通过降低血清TNF-α、IL-1β含量,下调炎症反应而发挥抗炎作用.     

脂质体包裹mA20及其突变体质粒转染对内毒素血症小鼠的治疗作用

目的研究脂质体包裹A20及其突变体mA20-ZnF4-7(mA20Δ)质粒对脂多糖(LPS)攻击所致内毒素血症小鼠的治疗作用。方法用LPS攻击小白鼠制备内毒素血症动物模型。随机分为:生理盐水对照组(NS组)、单纯内毒素组、空质粒组、脂质体包裹mA20质粒治疗组(L-mA20组)、脂质体包裹mA20Δ质粒治疗组(L-mA20Δ组)。以ELISA检测各组血浆TNF-α、IL-1β表达,并于12h时间点观察组织病理变化。结果(1)L-mA20组和L-mA20Δ组的TNF-α在各时间点表达(pg/mL)分别为:6h(304.696±6.087)(、304.985±6.291),12h(321.217±10.579)、(256.580±33.524),24h(307.594±11.181)(、280.348±11.698);与单纯内毒素组、空质粒组的TNF-α表达比较有显著性降低(P<0.05)。(2)L-mA20组和L-mA20Δ组的IL-1β在各时间点表达(pg/mL)分别为:6h(256.989±3.921)、(263.655±5.645),12h(205.724±4.827)、(154.690±1.380),24h(165.724±7.772)(、101.816±3.259);依时间有显著性下降趋势;与单纯内毒素组、空质粒组的IL-1β表达比较有显著性降低(P<0.05)。(3)病理观察结果显示:L-mA20组和L-mA20Δ组的肝、肺损伤均较单纯内毒素组、空质粒组轻;与NS相比,肝、肺损伤无明显差别。结论尾静脉注射被脂质体包裹mA20及其突变体mA20-ZnF4-7质粒对内毒素血症小鼠有相似的治疗作用,为临床应用结构更简单的A20蛋白提供了一定实验基础。     

油酸-内毒素序贯致伤大鼠血浆和肺泡灌洗液TNF-α、IL-1β和IL-6水平的变化

目的探讨促炎症细胞因子:肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)和白细胞介素-6(IL-6)水平的变化,在全身炎症反应和急性肺损伤中的作用.方法采用油酸加内毒素脂多糖(LPS)序贯致伤大鼠,在油酸致伤后1、4、12和24h实施小剂量LPS第2次致伤,收集血浆和肺泡灌洗液,采用酶联免疫法(ELISA)检测TNF-α、IL-1β和IL-6蛋白含量.以单油酸致伤和单小剂量LPS致伤作为对照组进行比较分析.结果 TNF-α和IL-1β在油酸致伤4 h LPS第2次致伤后水平最高,IL-6的最高水平在油酸12 h加LPS致伤组;2次序贯致伤后IL-1β水平变化最大,增高最显著,血浆浓度达到(1 526±39.69)pg/ml,肺泡灌洗液内浓度为(840.4±95.29)pg/ml.结合肺组织病理学研究,肺组织损伤最严重大鼠,血浆和肺泡灌洗液TNC-α、IL-1β和IL-6水平最高.结论 TNF-α和IL-1β是早期释放的促炎症细胞因子,其中IL-1β的血浆和肺泡灌洗液中水平最高,它可能在全身炎症反应发生、发展和急性肺损伤中起非常重要的作用.肺组织损伤程度与这些促炎症细胞因子水平有密切关系.     

锌指蛋白A20突变体转基因小鼠脓毒症肺损伤的研究

目的了解锌指蛋白A20突变体(A20△)转基因小鼠脓毒症肺损伤的特点,探讨A20△对小鼠脓毒症肺损伤的影响。方法以A20△转基因脓毒症小鼠为动物模型(A20△转基因组),采用流式细胞仪测定肺组织单核巨噬细胞浸润,ELISA测定肺组织A20△、TNF-α、IL-1β水平,结合肺体指数和病理检查对炎症及其损伤程度进行鉴定。实验同时设LPS对照组(LPS组)和生理盐水对照组(对照组)。结果给予LPS后6、12、24h,A20△转基因组小鼠肺体指数较LPS组明显下降(P<0.01,P<0.05);A20△转基因组小鼠肺组织浸润单核/巨噬细胞数较LPS组明显下降(P<0.01)。给予LPS后3、6h,A20△转基因组小鼠肺组织炎症细胞因子TNF-α水平较LPS组明显下降(P<0.01);IL-1β水平也较LPS组明显下降(P<0.05,P<0.01);给予LPS后12、24h,TNF-α和IL-1β水平差异无统计学意义(P>0.05)。病理学观察表明A20△转基因组小鼠肺组织充血程度、肺泡积液及肺间质增厚程度均较LPS组轻。结论A20△转基因小鼠在一定程度上具有抵御LPS诱导性肺损伤的能力,其机制可能是通过抑制单核细胞...     

S-腺苷蛋氨酸对内毒素性肝损害的保护作用

目的 探讨S-腺苷蛋氨酸(S-adenosylmethionine, SAM)对内毒素(lipolmlysaccharide, LPS)性肝损害的保护机制.方法 100只BABL/c小鼠随机数字法均分为2组,LPS组:腹腔注射10 mg/kg的LPS;SAM组:在注射10 mg/kg LPS前2 h于小鼠腹腔内注射100 mg/kg SAM.记录两组小鼠存活率;光镜和电镜观察组织病理学改变;酶联免疫吸附法(ELISA)检测血清中肿瘤坏死因子-α(TNF-α)和白细胞介素-10(IL-10)的浓度;免疫组织化学法(SABC)和蛋白免疫印迹法(Western blot)检测肝组织中Toll样受体4(TLR4)和肝X受体α(LXRα)的蛋白表达水平.结果 两组24、48、72、120 h存活率比较,SAM组显著高于LPS组[(80.0%、70.0%、60.0%、50.0%) vs (50.0%、40.0%、30.0%、30.0%),P<0.05],肝脏病理损害程度减轻;SAM组血清中TNF-α水平显著低于LPS组,差异有统计学意义[(1791.79±122.19)pg/ml对(718.83±53.27)pg/ml,P<0.05];SAM组血清中IL-10增加且高峰前移,与LPS组比较差异有统计学意义[(418.69±38.77)pg/ml对(347.09±31.37)pg/ml,P<0.05];SAM组肝组织中LXRα表达明显增加,而TLR4表达则明显减少,两者与LPS组比较差异均有统计学意义{Western blot灰度值[TLR4:(1.550±0.034)对(1.365±0.017),LXRα:(1.605±0.027)对(1.375±0.014)],P<0.05}.结论 SAM能明显减轻LPS所致的肝损害,其机制可能与其降低肝脏各种细胞TLR4的表达,增强LXRα的表达,最终导致TNF-α水平降低和IL-10水平增高有关.     

骨髓间充质干细胞移植治疗小鼠内毒素血症的实验研究

目的:明确骨髓间充质干细胞(MSCs)对内毒素血症小鼠的治疗作用?方法:动物分为4组:对照组?内毒素血症组?间充质干细胞治疗组?间充质干细胞组?分别在内毒素脂多糖(LPS)注射24 h和7 d后观察小鼠心功能的变化,ELISA方法检测血清细胞因子的水平,组织学方法观察对心肌?肝脏?肺脏和肾脏形态学改变的影响?结果:与对照组小鼠相比,内毒素血症组经LPS刺激后血清白介素1?茁(IL-1?茁)和肿瘤坏死因子α(TNF-α)含量增高,间充质干细胞治疗组血清IL-1?茁 和TNF-α含量明显降低;内毒素血症组小鼠心功能明显下降,间充质干细胞治疗组心功能明显恢复;内毒素血症小鼠心肌细胞和肝细胞凋亡增加,肺间质和肺泡水肿,间充质干细胞治疗组上述组织损伤明显改善?结论:MSCs移植抑制了内毒素血症小鼠的炎症反应,改善了心功能,减轻了对心脏?肝脏和肺脏的损害?     

SEPS1基因在内毒素所致脓毒症小鼠肝脏的变化规律

目的 观察SEPS1基因在内毒素所致脓毒症小鼠肝脏的变化规律.方法 采用内毒素攻击小鼠脓毒症模型.BALB/c小鼠84只,随机选取对照组10只,其余为脓毒症组.对照组麻醉后活杀动物.脓毒症组腹腔注射内毒素10 mg/kg后,分别于6、12、24、48、72、96 h留取肝脏和血标本,每个时间点随机选取10只小鼠.检测指标包括血清丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)和乳酸脱氢酶(LDH);肝组织内肿瘤坏死因子(TNF-α)和白细胞介素6(IL-6)含量;肝组织SEPS1蛋白表达采用Western印迹检测.结果 与正常对照组比较,脓毒症组肝脏有损伤,表现为ALT、AST和LDH含量升高,24 h达到高峰,分别为(99±11)、(299±48)和(1523±131)U/L(与0 h比较,均P<0.05).随后逐渐下降,并于24～72 h恢复至损伤前水平.IL-6和TNF-α水平明显升高,0-48 h内损伤持续快速加重,IL-6和TNF-α均在48h达到高峰,分别为(30 325±17 901)ng/L和(36 509±20 794)ng/L[与0 h(23 802±11 150)、(29 799±8239)ng/L比较,均P<0.05].Western 印迹检测显示脓毒症组小鼠肝脏SEPSl蛋白表达显著升高,并于伤后24 h达峰值.随后逐渐减弱,72 h近乎恢复到正常水平.免疫组化结果显示脓毒症组小鼠肝脏SEPS1蛋白表达增高,并于伤后第24小时达峰值.病理结果显示脓毒症小鼠的肝组织明显病变,6-12h细胞病变最严重.结论 内毒素所致脓毒症小鼠肝脏有不同程度的损伤,IL-6和TNF-水平明显升高.肝脏SEPS1蛋白表达显著升高,并于伤后24 h达峰值,72 h恢复到接近正常水平.     

重组纤维连接蛋白N端肝素结合域多肽抗内毒素所致小鼠肝衰竭的作用

目的 通过动物实验研究重组纤维连接蛋白N端肝素结合域多肽(rhFNHN-29多肽)对内毒素血症肝衰竭的治疗作用.方法 用内毒素脂多糖(LPS,Sigma)和半乳糖胺(Galactosamine GalN,Sigma)注射小鼠腹腔,建立内毒素血症肝衰竭小鼠模型.实验小鼠随机分两组,1组为rhFNHN-29多肽治疗组,1组为生理盐水对照组,另设正常对照组.治疗组分别于注射(LPS和GalN)前半小时,后1、2、3 h尾静脉注射rhFNHN-29多肽10 mg/kg,生理盐水对照组注射等体积生理盐水,正常对照组注射等体积生理盐水.腹腔注射药物6 h,眶静脉采血检测小鼠血浆TNFα,72 h后计算小鼠死亡率,处死活鼠,取其肝、肾、脾、肺、心、脑组织进行病理组织学观察,肝组织做电镜超微结构观察,取肝组织对其TNFα、IL-1β、IL-6的表达进行PCR分析.结果 生理盐水对照组小鼠72 h死亡率为70%,多肽治疗组死亡率仅为15%.病理组织学观察显示生理盐水对照组肝组织呈广泛变性与严重坏死,多肽治疗组肝组织呈小面积变性和轻微坏死.电镜超微结构显示生理盐水埘照组肝细胞呈严重的变性和坏死,多肽治疗组轻微变性.肝细胞因子表达分析显示多肽治疗组小鼠的TNFα、IL-1β、IL-6 mRNA表达水平及血浆TNFα水平(0.86±0.43,0.86±0.31,0.27±0.13和23.6±5.8,P<0.01)显著低于生理盐水对照组小鼠的水平(1.26±0.37,0.98±0.21,0.43±0.17和87.43±16.7,P<0.01).结论 rhFNHN-29多肽对内毒素血症肝衰竭具有明显的预防和治疗作用,其作用机制可能与多肽的抗炎等作用有关.     

载脂蛋白A-I半胱氨酸突变体结合脂质后抗炎性能的变化

目的 探讨载脂蛋白A-I半胱氨酸突变体重组高密度脂蛋白抗炎能力.方法 应用脂多糖诱导构建内毒素血症小鼠模型,选取3种半胱氨酸突变体[A-I(S52C)、A-I(K107C)、A-I(R173C)]及野生型载脂蛋白A-I结合二棕榈酰磷脂酰胆碱(DPPC)构建重组高密度脂蛋白(rHDL52、rHDL107、rHDL173、rHDLwt)注射小鼠作为干预组(每组10只小鼠),以脂多糖组(9只小鼠)、生理盐水组(5只小鼠)作为对照.酶联免疫吸附试验(ELISA)检测4种重组高密度脂蛋白干预后对肿瘤坏死因子(TNF)α,白细胞介素(IL)1β和IL-6的影响.病理检测各组小鼠肺组织.结果 小鼠注射后24 h,rHDL52组血清中TNF-α和IL-1β明显低于rHDLwt组[(39.66±2.44)pg/ml比(135.28±12.84)pg/ml;(66.83 ±6.24)pg/ml比(82.00±8.19)pg/ml,均P＜0.05].常规病理分析显示,rHDL52比rHDL107、rHDL173及rHDLwt更能够降低炎症细胞的浸润,保护肺器官免受损伤.结论 rHDL52拥有较野生型载脂蛋白更强的抗炎能力.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.