老年慢性阻塞性肺疾病合并肺部感染血清白细胞介素-6和肿瘤坏死因子的变化

肿瘤坏死因子 α(ＴＮＦ α)和白细胞介素 6 (ＩＬ 6 )在机体的炎症反应和免疫调节过程中发挥重要作用 ,并与肺部感染的病理过程有关。为此 ,我们测定了 5 5例老年肺部感染急性期患者和 2 1例肺部感染好转期患者的血清ＴＮＦ α、ＩＬ 6和ｓＩＬ 2Ｒ含量的变化 ,旨在探讨其在老年ＣＯＰＤ合并肺部感染中的作用和临床意义。对象与方法1.对象 :老年慢性阻塞肺病 (ＣＯＰＤ)合并肺部感染的住院患者 76例。 ( 1)Ａ组 :对照组 2 5名 ,年龄 70～ 85岁 ,平均年龄( 76± 6 .0 )岁 ,均为正常健康者。 ( 2 )Ｂ组 :5 5例 ,为急性感染期患者 ,平均年龄…     

哮喘和慢性阻塞性肺疾病患者糖皮质激素治疗前后痰液炎性标志物 …

探讨哮喘和慢性阻塞性疾病患者吸入糖皮质激素治疗后痰液中细菌因子和嗜酸细胞阳离子蛋白浓度及糖皮质激素对其影响。方法采用荧光酶联免疫法检测糖皮质激素治疗前后痰液中白细胞介素（ＩＬ）－５、ＩＬ－８、ＥＣＰ浓度及嗜酸细胞和嗜中性粒细胞计数。     

老年慢性阻塞性肺疾病白介素和肿瘤坏死因子-α测定的临床意义

目的探讨老年慢性阻塞性肺疾病（COPD）患者血清白介素（IL-6、IL-8）、肿瘤坏死因子-α（TNF—α）测定的临床意义。方法21例老年COPD急性加重期住院患者，分别于治疗前及治疗10～14d病情缓解后查血常规、肺功能并计算第1秒用力呼气量（FEV1）占预计值百分比（FEV1Pre），用EHSA法检测血清IL-6、IL-8、TNF—α浓度。结果COPD急性加重期时外周血中性粒细胞占白细胞总数百分比（Neu／Leu％）、血清IL-6、IL-8、TNF—α浓度均明显高于缓解后水平（均P〈0．01），而急性加重期FEV1Pre明显低于缓解后水平（P〈0．01）。IL-8、IL-6、TNF—α与FEV1Pre均呈负相关（P〈0、05），Neu／Leu％与FEV1Pre无明显相关性，IL-6、IL-8、TNF—α与Neu／Leu％均呈正相关（P〈0．05）。结论血清IL-6、IL-8、TNF—α不仅参与了老年COPD急性加重的发病机制，而且与病情严重程度密切相关。     

吸烟、肿瘤坏死因子及其受体与慢性阻塞性肺疾病

慢性阻塞性肺疾病(chronic obstructive pulmonary disease,COPD)发病率高.发病机制不清.外界环境的刺激导致气道和血管损伤与修复的失平衡可能与COPD的发生相关.其中吸烟致细胞因子、炎症细胞及炎症介质增多,气道和肺实质慢性炎症,导致气道损伤和重构.最终导致气流受限,在肺气肿的形成中起主要作用.肿瘤坏死因子a是重要的炎症因子,通过其主要受体肿瘤坏死因子受体1参与COPD的形成,在COPD的发生、发展中起重要作用.     

慢性阻塞性肺疾病患者痰液炎症细胞计数与分类及其意义

目的探讨炎症细胞在慢性阻塞性肺疾病(COPD)发病机制中的作用。方法对受试者痰液进行炎症细胞计数与分类检查,并与肺功能指标作相关分析。结果COPD组痰液细胞总数、中性粒细胞计数(Neu)及百分比(Neu%)、嗜酸性粒细胞计数(Eos)、淋巴细胞计数(Lym)明显高于健康吸烟者(HS组)和健康不吸烟者(HNS组)(P<0.01);嗜酸性粒细胞百分比(Eos%)高于HNS组(P<0.01);淋巴细胞百分比(Lym%)高于HS组(P<0.01)。HS组痰液细胞总数、Neu及Neu%、Eos及Eos%均明显高于HNS组(P<0.05~0.01)。在COPD组,痰液Neu%与一秒钟用力呼气容积占预计值百分比(FEV1占预计值%)、一秒钟用力呼气容积/用力肺活量(FEV1/FVC)呈显著负相关(r’s=-0.734、-0.735,P<0.01)。结论多种炎症细胞尤其是中性粒细胞参与了COPD气道炎症反应的发生并导致气流阻塞的形成。     

慢性阻塞性肺疾病患者血清白介素6、肿瘤坏死因子α水平与肺功能的相关性研究

目的 探讨慢性阻塞性肺疾病(COPD)患者血清白介素6(IL-6)、肿瘤坏死因子α(TNF-α)水平与肺功能相关性的临床意义.方法 选取我院收治的COPD患者84例和健康体检者45例.血常规检测外周血中性粒细胞占白细胞总数百分比(Neu/Leu％),采用ELISA方法测定COPD患者和健康体检者血清IL-6和TNF-α浓度,同时计算第1秒用力呼气容积占预计值百分比(FEV1 ％pred)检测肺功能指标.结果 COPD稳定期组、急性加重期组的外周血Neu/Leu％,血清IL-6、TNF-α水平均高于对照组,急性加重期组较稳定期组进一步升高,差异均有统计学意义(P＜0.05).FEV1％ pred值在正常对照组以及COPD稳定期组、急性加重期组则呈递减趋势,组间两两比较差异均有统计学意义(P＜0.05).血清IL-6、TNF-α水平与FEV1％ pred均呈负相关(P＜0.05),与Neu/Leu％均呈正相关(P＜0.05).结论 IL-6、TNF-α、中性粒细胞密切参与了COPD的炎症反应过程,与肺功能密切相关,可作为评估病情严重程度的辅助指标.     

内毒素和细胞因子的测定在慢性阻塞性肺疾病中的应用及临床意义

慢性阻塞性肺疾病(COPD)是一种慢性炎症性疾病。本文对30例急性期COPD患者，缓解期25例，健康人25例的血清中的内毒素和细胞因子(IL-6、IL-8、TNF-α）进行检测，探讨它们在COPD发病中的作用和意义。     

白细胞介素8在老年慢性阻塞性肺疾病中的作用

吸烟、慢性阻塞性肺疾病(COPD)患者痰和支气管肺泡灌洗液中的中性粒细胞数量均多于健康吸烟者〔1〕。研究发现,白细胞介素8(IL - 8)与COPD的发生、发展有密切关系。提示血清IL - 8检测是COPD病情监测和疗效判断的较好指标〔2〕。本文探讨COPD病程与IL - 8含量的关系。1　对象与方法1.1　对象　经病史,体检,胸片等证实,符合COPD诊治规范标准(草案) ,处于急性发作期的COPD患者30例,男2 6例,女4例,年龄5 8～82岁,平均72 .4岁,其中有吸烟史者2 0例,均为男性。各患者无呼吸系统变态反应病史,既往及现病史无癌症,胶原血管疾病、心衰、…     

肺结核患者IL-15和效应性CD8+T细胞的检测及意义

目的 通过检测肺结核患者IL-15水平及其效应性CD8+T细胞的变化,探讨IL-15在结核病免疫保护和结核病病情进展中的作用.方法 对98例肺结核患者进行血清IL-15水平及效应性CD8+T细胞检测,并结合痰涂片、病变程度等进行分析.结果 肺结核患者初治、复治组IL-15水平及效应性CD8+T细胞的百分比计数均较正常对照组下降(P<0.05或P<0.01),复治组IL-15水平及效应硅CD8+T细胞的百分比计数低于初治组(P值均<0.01);肺结核患者重度组IL-15水平及效应性CD8+T细胞百分比计数明显低于轻、中度组(P值均<0.01).痰菌阳性、痰菌阴性两组间II-15水平及效应性CD8+T细胞百分比计数比较差异无统计学意义.结论 IL-15有望为结核病病情判断、内源性复发的评估提供一个新的指标.     

肿瘤坏死因子α、白介素6及白介素8在小儿支气管肺炎中检测的临床意义

目的 探讨血清肿瘤坏死因子α(tumor necrosis factor-α,TNF-α)、白介素6(interleukin-6,IL-6)和IL-8的水平与小儿肺炎的关系.方法 采用放射免疫法对60例支气管肺炎患儿(分为轻型和重型)进行了TNF-α、IL-6和IL-8水平检测,并与30名正常健康儿童作比较.结果 重型肺炎与轻型肺炎患儿血清TNF-α、IL-6和IL-8水平均高于正常对照组(P值均<0.01),重型肺炎患儿血清TNF-α、IL-6和IL-8水平均高于轻型肺炎患儿(P值均<0.01).肺炎患儿血清TNF-α、IL-6和IL-8之间呈显著正相关(P值均<0.001).结论 TNF-α、IL-6和IL-8在小儿肺炎中起重要作用,检测支气管肺炎患儿血清TNF-α、IL-6和IL-8的水平对诊断、治疗和预后均有一定的临床意义.     

心力衰竭治疗前后血浆白细胞介素-18的变化及临床研究

目的 探讨不同级别心功能衰竭(CHF)患者治疗前、后血浆白细胞介素-18(IL-18)水平的临床意义.方法 采用酶联免疫法(ELAsA)检测116例CHF患者血浆IL-18水平,并以31例健康者作对照,分析CHF患者治疗前、后心功能分级与血浆IL-18水平的变化.结果 CHF患者血浆IL-18水平显著高于对照组[(570.99±63.18)pg/ml和(201.82±46.09)pg/ml,(595.24±74.33)pg/ml和(201.82±46.09)pg/ml,(657.07±73.86)pg/ml和(201.82±46.09)pg/ml,F=6.68,P＜0.01].经过治疗心功能改善后血浆IL-18水平显著下降(t=4.56,5.99,3.22,3.78,P＜0.01).结论 IL-18可能参与CHF的发生及发展过程,监测血浆水平对判断心衰、指导治疗、评价疗效有一定参考价值.     

切割球囊血管成形术加支架术后血清TNF-α和IL-6、IL-8的变化及其意义

目的　评价切割球囊血管成形术对血清肿瘤坏死因子 α(TNF α)和白细胞介素 6 (IL 6 )、白细胞介素 8(IL 8)浓度的影响 ,并研究术后血清TNF α、IL 6和IL 8的浓度与远期心血管事件的联系。方法　冠状动脉造影证实的冠心病病人共 80例 ,分为普通球囊加支架组 ( 4 3例 )和切割球囊加支架组 ( 37例 ) ,所有病人采用酶联免疫吸附法测定术前、术中、术后即刻、术后 6h、术后 2 4h的血清TNF α、IL 6和IL 8的浓度 ,并随访术后 6个月心血管事件 ,比较再狭窄组与无再狭窄组之间血清TNF α、IL 6和IL 8的差异。结果　再狭窄组中普通球囊加支架组和切割球囊加支架组术后 6hTNF α、IL 6和IL 8浓度均较术前明显升高 ,但普通球囊加支架组升高更明显 ,而术后 2 4h与术前差异无显著性 ;无再狭窄的普通球囊加支架组和切割球囊加支架组各时间段的TNF α、IL 6和IL 8浓度均无显著变化。结论　切割球囊加支架术后血管损伤较小、炎症反应较轻 ;冠状动脉血管成形术后 6hTNF α、IL 6和IL 8浓度升高可能是术后发生再狭窄的预报标志 ,对预测冠状动脉血管成形术后远期疗效有一定价值     

Prognostic significance of plasma interleukin-6/-8 in pancreatic cancer patients receiving chemoimmunotherapy

AIM: To investigate the association of plasma levels of interleukin(IL)-6 and-8 with Wilms' tumor 1(WT1)-specific immune responses and clinical outcomes in patients with pancreatic ductal adenocarcinoma(PDA) treated with dendritic cells(DCs) pulsed with three types of major histocompatibility complex classⅠand Ⅱ-restricted WT1 peptides combined with chemotherapy.METHODS: During the entire treatment period, plasma levels of IL-6 and-8 were analyzed by ELISA. The induction of WT1-specific immune responses was assessed using the WT1 peptide-specific delayed-type hypersensitivity(DTH) test.RESULTS: Three of 7 patients displayed strong WT1-DTH reactions throughout long-term vaccination with significantly decreased levels of IL-6/-8 after vaccinations compared with the levels prior to treatment. Moreover, overall survival(OS) was significantly longer in PDA patients with low plasma IL-6 levels( 2 pg/m L) after 5 vaccinations than in patients with high plasma IL-6 levels(≥ 2 pg/m L)(P = 0.025). After disease progression, WT1-DTH reactions decreased severely and were ultimately negative at the terminal stage of cancer. The decreased levels of IL-6/-8 observed throughout long-term vaccination were associated with WT1-specific DTH reactions and long-term OS.CONCLUSION: Prolonged low levels of plasma IL-6/-8 in PDA patients may be a prognostic marker for the clinical outcomes of chemoimmunotherapy.     

乙型肝炎不同白介素细胞因子的检测及其意义

目的探讨血清IL-10、IL-13、IL-15水平在乙型肝炎发生发展中的意义。方法采用双抗体夹心ELISA法检测2002年5月至2004年9月泉州市第一医院感染科109例乙型肝炎患者血清中IL-10、IL-13、IL-15水平。结果慢性肝炎中度患者血清IL-10、IL-13显著高于慢性重型肝炎、慢性肝炎重度、急性肝炎及正常对照组(P<0.01)。IL-15值比较,急性肝炎、慢性肝炎中度、慢性肝炎重度、慢性重型肝炎明显高于正常对照组(P<0.01)。IL-15/IL-10、IL-15/IL-13比值,慢性重型肝炎、慢性肝炎重度、急性肝炎明显高于慢性肝炎中度及正常对照组(P均<0.01)。慢性重型肝炎死亡组IL-15值及IL-15/IL-10、IL-15/IL-13比值明显高于治疗好转组(P<0.01)。结论乙型肝炎患者存在异常的细胞免疫应答,通过联合检测血清IL-10、IL-13、IL-15值及IL-15/IL-10、IL-15/IL-13比值,能较好地反映乙型肝炎患者Th1/Th2细胞激活状态,有助于不同临床类型的乙型肝炎患者的预后判断及指导治疗。     

Role of interleukin-17 and interleukin-17-induced cytokines interleukin-6 and interleukin-8 in unstable coronary artery disease

BACKGROUND: Atherosclerosis is a chronic inflammatory disease and interleukins are considered to play a key role in the chronic vascular inflammatory response that is typical of atherosclerosis. The serum levels of several of these cytokines have been found to positively correlate with coronary arterial disease and its sequelae. AIM: The aim of our study was to evaluate the levels of a comparatively new cytokine IL-17, in patients with stable and unstable coronary artery disease in order to assess whether unstable coronary artery disease patients had higher IL-17 levels. MATERIALS AND METHODS: We analyzed the concentrations of IL-17, IL-6, IL-8 and IL-10 using enzyme-linked immunosorbent assay and heat-sensitive C-reactive protein using latex particle-enhanced immunoturbidimetry in 58 consecutive unselected patients divided into three groups: stable angina (n=14), unstable angina (n=24) and acute myocardial infarction (n=20). We further compared them with 20 healthy controls. These 58 patients were also angiographically studied and divided into two groups: simple lesion (n=22) and complex lesion (n=36), on the basis of the coronary plaque morphology. RESULTS: Our results show increased concentrations of the proinflammatory cytokines IL-17, IL-6, IL-8 and heat-sensitive C-reactive protein, and decreased concentration of IL-10 in plasma of unstable angina and acute myocardial infarction patients. Plasma concentration of IL-17 was also positively correlated with plasma concentrations of IL-6 and heat-sensitive C-reactive protein. Our findings further showed that IL-17 values were higher in patients having angiographically visible complex types of lesions but no difference was observed between complex and simple lesion morphology patients. CONCLUSION: In conclusion, these findings point towards a role of inflammation in the form of increased activity of IL-17, IL-6 and IL-8 in patients of unstable angina and acute myocardial infarction and thus suggest that IL-17-driven inflammation may play a role in the promotion of clinical instability in patients with coronary artery disease.     

重型肝炎患者血清肿瘤坏死因子α与白细胞介素10和15水平的研究

重型肝炎肝细胞损伤的病理机制与机体的免疫应答和免疫调节紊乱密切相关。细胞因子是一类由免疫活性细胞产生的小分子多肽或蛋白质,其异常分泌和生成能引起机体许多病理性紊乱,细胞因子在病毒性肝炎发病机制中的作用愈来愈被重视,我们应用ELISA法检测了重型乙型肝炎患者血清TNFα,IL-10及IL-15水平,探讨它们在重型肝炎免疫发病机制中的意义。一、资料与方法1.对象:1999年3月-2004年2月我院感染内科住院     

Expression and significance of intratumoral interleukin-12 and interleukin-18 in human gastric carcinoma

AIM: To explore the effect of intratumoral expressions of interleukin-12 (IL-12) and interleukin-18 (IL-18) on clinical features, angiogenesis and prognosis of gastric carcinoma. METHODS: The expressions of IL-12 and IL-18 from 50 samples of gastric cancer tissue were analyzed by immunohistochemistry, and microvessel density (MVD) was determined with microscopic imaging analysis system. RESULTS: The positive expression rates of IL-12 and IL-18 were 44% (22/50) and 26% (13/50), respectively. IL-12 was significantly associated with pathologic differentiation, depth of invasion, lymph node metastasis, distant metastasis, and TNM stage, and IL-18 was closely related to distant metastasis. Intratumoral IL-12 and IL-18 expressions were not statistically related to MVD scoring. IL-12-positive patients survived significantly longer than those with IL-12-negative tumors, but there was no significant difference between IL-18-positive patients and IL-18-negative ones. The multivariate analysis with Cox proportional hazard model revealed IL-12, MVD and T stage were independent prognostic factors. CONCLUSION: The positive expressions of IL-12 and IL-18 can play an important role in progression and metastasis of gastric cancer, and IL-12 might be an independent factor of poor prognosis in gastric carcinoma.     

Pouchitis is associated with mucosal imbalance between interleukin-8 and interleukin-10

BACKGROUND: Mucosal lesions of pouchitis are characterized by a neutrophil infiltrate. Interleukin (IL)-8 is the main mediator involved in neutrophil recruitment and is down-regulated by IL-10. AIM: To look for an imbalance between IL-8 and IL-10 in patients with pouchitis. PATIENTS/METHODS: 18 patients having an ileoanal pouch for ulcerative colitis were studied. Eleven had pouchitis defined by the pouchitis disease activity index of > or =7 points and 7 had no history of pouchitis. Biopsies taken at the site of inflammation or in the normal mucosa were scored for the histologic lesions, the intensity of neutrophil infiltration, and the presence of crypt abscesses. Mucosal IL-8 and IL-10 mRNA were quantified by competitive polymerase chain reaction. RESULTS: IL-8, IL-10, and IL-10/IL-8 mRNA were similar in patients with or without pouchitis. IL-8 mRNA levels were significantly higher in patients with a histologic score >2 (p = 0.01) and in patients with crypt abscesses (p = 0.01). IL-10/IL-8 mRNA was significantly lower in patients having a histologic score >2 (p = 0.019), a neutrophil infiltration > or =10% (p = 0.013), and crypt abscesses (p = 0.01). CONCLUSION: Histologic lesions of pouchitis are associated with a mucosal imbalance between IL-8 and IL-10. IL-10 could be proposed as a new treatment for pouchitis.