大蒜素对兔急性下肢缺血再灌注损伤后组织中IL-1,IL-6,IL-8含量的影响

目的 观察大蒜素注射液对兔急性下肢缺血再灌注损伤后组织中白介素-1、白介素-6、白介素-8含量的影响及意义.方法 30只家兔随机分为5组：空白组、缺血再灌注2h组、缺血再灌注5h组、缺血再灌注2h大蒜素治疗组、缺血再灌注5h大蒜素治疗组.复制缺血再灌注模型.空白组,切开下肢,点滴生理盐水,取腓肠肌.其余四组于缺血2h或5h结束前10min,分别于耳缘静脉点滴大蒜素或生理盐水,再灌注1h后取腓肠肌.分别作免疫指标测定和形态学观察,进行对比分析.结果 缺血再灌注2h组、5h组组织中IL-1,IL-6,IL-8含量与空白组比较有明显增高（P〈0.05）,而缺血再灌注2h大蒜素治疗组、缺血再灌注5h大蒜素治疗组分别与缺血再灌注2h组、缺血再灌注5h组比较IL-1、IL-6、IL-8含量明显下降（P〈0.05）.光镜观察,再灌注组组织结构改变明显,而治疗组改变较轻.结论 大蒜素在兔急性下肢缺血再灌注损伤中能抑制IL-1,IL-6,IL-8的表达,有效减少中性粒细胞的黏附、浸润,减轻炎性渗出,押制微循环通透性的增加,减轻下肢肌肉的损伤.     

Evaluation of corticosterone and IL-1β, IL-6, IL-10 and TNF-α expression after 670-nm laser photobiomodulation in rats

The literature has shown that low-level laser therapy accelerates the repair of cutaneous wounds. However, there is a scarcity of scientific studies that characterise the possible systemic interference of laser photobiomodulation. The aim of this research was to quantitatively evaluate blood corticosterone levels and tissue cytokine expression in cutaneous wounds of rats treated with low-level laser therapy (semiconductor diode AsGaAl, continuous emission, 9 mW, 670 nm, 0.031 W/cm², beam with an output area of 0.28 cm²) and normal controls. A total of 36 male Wistar rats were used and randomly divided into two groups of 18 rats each. A standardised circular 6-mm-diameter wound was made in the dorsal skin region of each rat, and they were euthanised at 1, 6 and 12 h after cutaneous surgery. The blood was collected, and portions of cutaneous tissue and subcutaneous muscle were removed and cryopreserved. Corticosterone levels in the blood were measured by a radioimmunoassay technique; histological sections were submitted to the ELISA technique for analysis of tissue cytokine expression levels. At 6 h after surgery, a significant increase in corticosterone and a significant reduction in the levels of IL-1β and IL-6 in tissues of irradiated wounds were observed when compared to controls (p?<?0.05). The levels of TNF-α and IL-10 expression were not significantly different between the groups at different time intervals. Thus, this study strongly suggests a systemic and local biomodulation of low-level laser therapy as indicated by the blood levels of corticosterone and the tissue expression of IL-1β and IL-6, respectively.     

Expression of cytokines IL-4, IL-12, IL-15, IL-18, and IFNγ and modulation by different growth factors in cultured human osteoblast-like cells

The antigenic phenotype of cultured human osteoblast-like cells, their ability to phagocytose particles of different nature and size, and their capacity to stimulate allogeneic T cells suggest that they are related to other cell populations with which they may also have immunological functions in common. The objective of this study was to investigate the intracytoplasmatic presence of cytokines and their modulation by different biomolecules. Immunocytochemistry and flow cytometry were used to study the expression of IL-4, IL-12, IL-15, IL-18, and IFNγ cytokines. To investigate whether FGF, TGF, PDGF, IL-1, and IFNγ modulate expression of these cytokines in cultured human osteoblast-like cells we used flow cytometry. IL-4, IL-12, IL-15, IL-18, and IFNγ cytokines were expressed by all the cultured human osteoblast-like cells studied. Treatment with FGF and TGFβ1 reduced the percentage expression and fluorescence intensity of the cytokines. PDGF treatment enhanced their fluorescence intensity but did not modify their expression. IL-1 treatment produced a small reduction in expression and fluorescence intensity of IL-12 and IL-15, but did not produce major changes in the expression of IL-4, IL-18, or IFNγ. IFNγ markedly increased the fluorescence intensity of the cytokines. The results indicate that human osteoblast-like cells may perform immunological functions (e.g., synthesizing cytokines with immune regulator function) that can be modulated by different biomolecules related to bone tissue and/or immune response.     

IL-1与骨质疏松研究进展

骨质疏松症已经成为与衰老相关的最重要的疾病之一。女性发生率高的原因是由于绝经后雌激素水平的降低伴有骨吸收的增加。最新的研究显示,免疫系统可能是参与绝经后骨质疏松的重要因素,作用于成骨细胞及破骨细胞的促炎因子,以及免疫系统的激活被认为是引起骨质疏松的危险因素,其中白介素-1(IL-1)作为强有力的破骨细胞刺激因子,在生理状态下以及炎症性疾病、绝经后全身性骨量丢失中均发挥着重要作用。本文就IL-1家族、IL-1在细胞、信号通路、动物模型等方面的文献进行回顾,并就IL-1抑制剂、拮抗剂及其衍生物对骨代谢作用进行综述。     

IL-1α和IL-1β在胃癌组织中的表达及其临床意义

目的:通过检测胃癌组织和癌旁组织中白细胞介素-1α(interleukin-1α,IL-1α)和IL-1β的表达水平并分析其与临床病理特征的关系,探讨IL-1α和IL-1β在胃癌发生、发展中的作用。方法:取73例原发性胃癌新鲜的肿瘤和对应远离肿瘤切缘(≥5 cm)的癌旁组织。用RIPA裂解液提取组织中的总蛋白,BCA法测定各组织的蛋白浓度,酶联免疫吸附实验检测组织中IL-1α和IL-1β的含量,细胞因子含量与蛋白浓度的比值为相对细胞因子含量,分析相对细胞因子含量与临床病理资料的关系。结果:胃癌组织中IL-1α的含量较癌旁组织明显升高[(3.450比2.665)ng/g,P<0.05]。结论:炎性因子IL-1α和IL-1β在胃癌的发生发展中有重要作用。     

新生儿脐血IL-4,IL-13,IFN-γ,TGF-β测定及其意义

目的:测定并分析新生儿脐血IL-4,IL-13,IFN-γ,TGF-β的含量及其可能的危险因素,探讨脐血IL-4,IL-13,IFN-γ,TGF-β含量与6个月内婴儿发生湿疹可能性的关系.方法:用ELISA法测定72例青岛地区足月顺产健康新生儿(男性38例,女性34例)脐血IL-4,IL-13,IFN-γ,TGF-β含量,随访并记录家族过敏性疾病史、父母吸烟史、母亲孕期饮食情况、6个月内婴儿发生湿疹情况等.结果:父亲或母亲有过敏性疾病的新生儿脐血IL-13含量明显高于对照组(P<0.01),而TGF-β含量明显低于对照组(P<0.01).父亲或母亲有过敏性疾病新生儿脐血IL-4、IFN-γ含量与对照组差别无统计学意义.父亲或母亲有吸烟史、母亲孕期回避特殊食物新生儿脐血IL-4,IL-13,IFN-γ,TGF-β因子的含量、6个月内发生湿疹的概率与对照组差别没有统计学意义.6个月内发生湿疹纽婴儿脐血IL-13含量高于时腥纽(P<0.01),而TGF-β含量低于对照组(P<0.01),6个月内发生湿疹组婴儿脐血IL-4、IFN-γ含量与对照组差别无统计学意义.结论:父母有过敏性疾病及发生湿疹的新生儿脐血IL-13含量增高,新生儿脐血IL-13、TGF-β含量可能对预测以后湿疹等过敏性疾病的发生有一定临床意义.     

MODS发病机制中IL-1、IL-6/IL-10阴阳相关属性

现代医学的免疫平衡主要是指机体通过细胞、体液免疫的反应过程,来达到相对平衡。在病理情况下,通过调节自身的免疫功能,使机体维持相对的衡定。阴阳学说是中医学理论的特色之一,其主旨是认为阴阳相互协调而维持机体相对的平衡性,是人体生理基础的保证。在病理状态下,通过阴阳间的相互调节而使机体维持相对的稳定状态。多器官功能不全综合征(multiple organ dysfunction sym-drome,MODS)过程中IL-1、IL-6/IL-10的免疫的变化和阴阳平衡极为相似。为进一步揭示其中的对应关系,本文就此作一综述。1MODS1.1机制MODS的发生发展往往先有创…     

不育症患者精浆IL-1β、IL-4、IL-10含量测定及临床意义

目的 :观察男性不育症患者精浆中白细胞介素 1β(IL 1β)、白细胞介素 4 (IL 4 )、白细胞介素 10 (IL 10 )含量 ,及其与精子的各项功能指标之间的相互关系。　方法 :应用放射免疫分析 (RIA)技术 ,对 12 6例男性不育症和 2 0例正常生育者精浆中IL 1β、IL 4、IL 10含量进行检测。根据精子密度将不育症患者分为A组 (精子密度≥ 2 0× 10 6/ml)、B组 (精子密度 <2 0× 10 6/ml)和C组 (无精子症者 ) 3组 ;根据精子活动力、活动率将A组分别分为精子活动力正常组和不良组 ,精子活动率正常组和下降组 ;根据不育症患者血清抗精子抗体 (AsAb)检测结果、精液中WBC多少分为AsAb阳性组和阴性组 ,WBC精液组和非WBC精液组。根据生育组检测结果 ,将不育A组和B组分为精子穿透力正常组和下降组 ,精子顶体完整率正常组和下降组 ,精子尾部肿胀率正常组和下降组。　结果 :不育症组精浆IL 1β含量显著高于生育组 (P <0 .0 1) ,IL 4、IL 10含量显著低于生育组 (P <0 .0 1)。不育症组精浆中IL 1β、IL 4、IL 10含量在WBC精液组与非WBC精液组、血清AsAb阳性组与阴性组之间差异均有显著性 (P <0 .0 5或P <0 .0 1) ;IL 4含量在不育症组精子活动力、活动率、精子穿透力、顶体完整率、尾部肿胀率正常与减少之间差异均有显著性 (P <0     

滑液中IL-1Ra/IL-1β比率与骨关节炎临床症状相关性分析

目的 测量OA滑液中IL-1Ra和IL-1β水平,并评估它们的水平或它们之间的比率与OA临床症状之间的相关性.方法 按美国风湿病学会诊断标准纳入48例膝OA病人,利用酶联免疫吸附试验(ELISA)测定滑液中IL-1Ra和IL-1β水平,按Kellgren-Lawrence分级评估影像学表现,按加拿大西安大略和麦克玛斯特...     

IL-4,IL-12在宫颈病变中的表达及意义

目的:探讨IL-4,IL-12在宫颈病变发生发展中的作用以及对机体免疫功能的影响.方法:应用RT-PCR技术检测IL-4mRNA,IL-12p35以及IL-12p40 mRNA在正常宫颈组、CINⅠ、CINⅡ-Ⅲ和宫颈癌组中的表达.结果:在宫颈癌组中IL-4表达高于CIN和正常宫颈组,CI-NⅡ-Ⅲ组高于CINⅠ和正常宫颈组(P＜0.05),IL-12p35和IL-12p40mRNA表达均低于CIN和正常宫颈组,CIN各组均低于正常宫颈组(P＜0.05).结论体内IL-4,IL-12水平与肿瘤的发生密切相关,体内IL-12降低和(或)IL-4升高可促进宫颈癌的发生发展.     

药物对痛风性关节炎模型IL-1、IL-6的影响

痛风是由于嘌呤代谢紊乱所致的风湿病。临床上以高尿酸血症伴痛风性急性关节炎反复发作 ,痛风石沉积 ,痛风性慢性关节炎和关节畸形 ,肾小球和肾小管等实质性病变和尿酸结石形成为特点。我们曾用外用中药治疗临床痛风性关节炎取得良效 ,推测其治疗所起的抗炎镇痛活血化瘀作用与某些炎症因子有关。参照现代炎症机理 ,通过对动物痛风性关节炎模型治疗后检测局部关节组织ＩＬ - 1、ＩＬ- 6 ,来探讨其抗炎作用的机理。材料与方法1　动物　Ｗｉｓｔａｒ雄性大鼠 40只 ,体重 (180± 30 )ｇ ,由北京医学科学院实验动物中心提供。饲养于浙江中医学院…     

BMP,TGF-β和IL-1在创伤性异位化骨组织中的表达

为了探索创伤性异位化骨的形成机制,本研究采用免疫组织化学染色技术,观察骨形态发生蛋白（ＢＭＰ）,转化生长因子β（ＴＧＦ－β）和白细胞介素１（ＩＬ－１）,在创伤性异位化骨组织中的表达,结果显示：ＢＭＰ,ＴＧＦ－β和ＩＬ－１在邻矿化组织的类软骨区中的一些细胞和正进行矿化的区域中的一些成骨细胞中表达。ＴＧＦ－β与ＩＬ－１还在邻矿化骨组织的血管内皮细胞中表达。ＢＭＰ,ＴＧＦ－β和ＩＬ－１的表达显示与创伤性异位化骨的形态学事件密切相关。我们认为ＢＭＰ,ＴＧＦ－β和ＩＬ－１相互协同,在创伤性异位骨形成发展中起重要作用。     

TNF-α,IL-1β在胰性脑病发病机制中的作用

目的探讨炎性细胞因子TNF-α,IL-1β在急性胰腺炎时对脑组织损害的影响,从而阐明胰性脑损害的发病机制. 方法采用5%牛磺胆酸钠逆行注入胰胆管以建立鼠的急性胰腺炎模型,并用生理盐水,TNF-α,IL-1β,TNF-α加IL-1β等试剂预处理.5h后处死动物,检查胰腺、脑组织形态学变化;并检测脑组织含水量、脑微血管内白细胞聚集及附壁现象. 结果经炎性细胞因子预处理后,脑组织含水量,脑微血管内白细胞聚集及附壁现象显著增加(p<0.05),脑组织病理损害程度加重;而各组胰腺炎症无明显差异(P>0.05). 结论炎性细胞因子TNF-α,IL-1β参与和促进了急性胰腺炎时脑损害的发生和发展.     

张宗亮1,种丽强1,赵凯1,邢念增2,王新生1,王振林1,张玉莲3,林春华4,陈艳杰5,隋元明1,

腹腔镜膀胱根治性切除原位新膀胱技术现已成熟,并广泛开展,主要分为经腹膜外及腹膜内两种手术入径。经腹膜内途径为主流选择,但不能最大程度保留腹膜,而腹膜外途径,能够最大程度保留腹膜甚至能够完全保留腹膜,减少因腹膜缺失造成的术后并发症,同时可在围手术期严格按照加速康复外科(ERAS)理念管理。我科开展了ERAS理念下经腹膜外腹腔镜膀胱根治性切除术,将原位膀胱置于腹膜外,完全保留腹膜。本文就术中经腹膜外途径、盆底腹膜保留、重建的手术步骤及技术要点进行总结。     

IL-1家族及其受体与骨关节炎

骨关节炎作为一种退行性疾病 ,其主要临床表现为局限性、退行性关节软骨破坏及关节边缘骨赘形成 ,同时伴有不同程度的滑膜炎症。近年来的研究发现细胞因子通过影响关节软骨基质的分解代谢和合成代谢的平衡来参与骨关节炎的形成 ,其中白细胞介素 1(IL 1)及其受体拮抗蛋白在其中起着重要的作用。1　IL 1家族及其受体IL 1家族包括配体、IL 1α、IL 1β、IL 18和IL 1受体拮抗蛋白 (IL 1ra) [1] 。尽管它们的氨基酸序列的相似性较小 (只有大约 2 5 %的氨基酸有同源性 ) ,但是IL 1α和IL 1β具有相似的生物学活性而且它们与IL 1ra都同相…     

乙型脑炎患儿脑脊髓液中IL-1β及IL-1ra的表达和意义

目的研究流行性乙型脑炎患儿脑脊髓液中IL-1β和IL-1ra含量变化及临床意义。方法采用双抗体夹心酶联免疫吸附法（ELISA）测定50例乙型脑炎患儿和20例非神经系统疾病患儿（对照）脑脊髓液中IL-1β和IL-1ra的含量。结果乙型脑炎患儿极期、恢复期及对照组患儿脑脊髓液中的IL-1β含量分别为（49．43±14．59）、（24．73±14．50）和（8．98±1．26）μg／L,差异具有统计学意义（F=79．88,P〈0．01）;IL-1ra含量分别为（177．39±60．19）、（78．24±44．63）和（21．09±3．10）μg／L,差异也具有统计学意义（F=91．53,P〈0．01）。轻型、普通型和重型患儿极期和恢复期脑脊髓液中的IL-1β和IL-1ra含量比较差异具有统计学意义（极期：F=82．36、66．50,P值均〈0．01;恢复期：F=55．17、79．50,P值均〈0．01）。患儿脑脊髓液中的IL-1β和IL—1ra含量呈正相关（极期：r=0．815,t9〈0．01;恢复期：r=0．728,P〈0．01）。结论乙型脑炎患儿极期脑脊髓液中IL-1β和IL．1ra水平明显升高,与乙型脑炎病情严重程度密切相关,提示脑脊髓液中的IL-1β和IL-1ra参与了乙型脑炎脑损伤的病理过程。     

Cytokine Levels (IL-4, IL-6, IL-8 and TGFβ) as Potential Biomarkers of Systemic Inflammatory Response in Trauma Patients

Purpose

Much research is now being conducted in order to understand the role of cytokines in the development of the inflammatory response following trauma. The purpose of this study was to evaluate whether serum levels of certain cytokines, measured immediately after initial injury, can be used as potential biomarkers for predicting the development and the degree of severity of the systemic inflammatory response (SIRS) in patients with moderate and severe trauma.

Methods

We conducted a prospective study with 71 individuals of whom 13 (18.3 %) were healthy controls and 58 (81.7 %) were traumatized orthopaedic patients who were categorized into two groups: 31 (43.6 %) with moderate injuries and 27 (38.1 %) patients with severe orthopaedic trauma. Thirty cc of heparinized blood were drawn from each individual within a few hours after the injury. Serum levels of pro-inflammatory, regulatory and anti-inflammatory cytokines were measured in each individual participant.

Results

High levels of pro-inflammatory cytokines IL-1β,-6,-8,-12, tumour necrosis factor alpha and interferon gamma were found in all injured patients compared to healthy controls. Only IL-6 and IL-8 were significantly higher in the injured patients. Levels of the regulatory cytokines, transformed growth factor beta (TGF-β) and IL-10 were higher in the injured patients, but significant only for TGF-β. Levels of IL-4 were significantly lower in the injured groups as compared to the controls.

Conclusions

Secretion of large amounts of pro-inflammatory cytokines and decreased level of anti-inflammatory cytokines during the acute phase of trauma may lead to the development of systemic inflammatory response syndrome (SIRS) in unstable polytraumatized patients. SIRS may result in life threatening conditions as acute respiratory distress syndrome (ARDS) and multiple organ failure (MOF). High levels of IL-6, IL-8, TGFβ and low levels of IL-4 were found to be reliable markers for the existence of immune reactivity in trauma patients. More research is needed to study pattern of cytokine levels along the acute period of injury, after surgical interventions and during recovery.     

去势大鼠脾脏巨噬细胞IL-1、TNF3和IL-6的分泌

20只雌性大鼠分为切除双侧卵巢组（去势组）和假性切除对照组（假去势组）。术后第26周末，取各组大鼠脾脏制备巨噬细胞，用MTT法检测其在细细菌脂多糖刺激下IL-1、TNF，和IL-6分泌水平。结果表明，大鼠去势后第26周末，脾脏巨噬细胞的IL-1分泌水平显高于假去势对照组（P＜0.05）、TNF6和IL-6分泌水平亦较假去势对照组增加，但无显性差异，此提示脾脏巨噬细胞IL-1、TNF。和IL-6分泌水平的改变与雌激素减少密切相关，有可能在骨质疏松的骨丢失相对缓慢时期以IL-1分泌增多为主要特征。     

爆炸伤创面IL-1、IL-6、TNF-α、CRP的测定

[目的]检测兔肢体爆炸伤创面组织IL-1、IL-6、TNF-α和CRP含量。[方法]新西兰大白兔24只,随机分为炸伤后即刻取材组（A组,n=12）和炸后1h取材组（B组,n=12）;0.9g铜壳单质猛黑索金炸药（RDX）以海绵间隔5cm,绑于左下肢股部中段前外侧,电引爆,分别取爆炸中心区（Ⅰ区）、爆炸边缘区（Ⅱ区）、爆震区（Ⅲ区）的肌肉组织,测IL-1、IL-6、TNF-α、CRP的含量并取对侧肢体肌肉组织做对照研究。[结果]炸伤后两组各区标本IL-1、IL-6、TNF-α、CRP含量均比正常组织高,差异显著（P〈0.05）,且从Ⅰ区、Ⅱ区到Ⅲ区,含量依次降低,差异显著（P〈0.05）：A组：Ⅱ区与Ⅲ区的IL-1含量差别有显著意义（P〈0.05）。Ⅰ区与Ⅲ区、Ⅱ区与Ⅲ区的IL-6含量差别有极显著意义（P〈0.01）。Ⅰ区与Ⅲ区的TNF-α、CRP含量差别有极显著意义（P〈0.01）,Ⅰ区与Ⅱ区、Ⅱ区与Ⅲ区的含量差别有显著意义（P〈0.05）。其余各区的含量无统计学差异（P〉0.05）;B组：Ⅱ区与Ⅲ区的Ⅱ-1、IL-6、TNF-α含量差别有显著意义（P〈0.05）。Ⅰ区与Ⅲ区、Ⅰ区与Ⅱ区、Ⅱ区与Ⅲ区的CRP含量差别有显著意义（P〈0.05）。其余各区的含量无统计学差异（P〉0.05）。A、B两组比较,炸后组织中上述因子表达虽有增强,但差异无显著意义（P〉0.05）。[结论]肢体爆炸伤1h内,创面组织中IL-1、IL-6、TNF-α、CRP表达增强,不同区域间表达有差异。