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1.
T淋巴细胞是机体免疫细胞中数目最多,作用最重要的功能细胞。T淋巴细胞CD4 、CD8 亚群是重要的免疫调节细胞。中小强度有规律的运动提高CD4 /CD8 比值,增强机体T淋巴细胞的免疫功能;而大强度、力竭运动则降低CD4 /CD8 比值,减弱T淋巴细胞的免疫功能。  相似文献   

2.
《学周刊C版》2015,(25):132-133
目的:探讨小儿EB病毒(EBV)感染的临床情况。方法:抽取本院接诊的小儿EB病毒感染患儿200例作为研究对象,根据急慢性分为两组,急性组120例、慢性组80例。两组均进行实验室检查,对比分析两组检查结果。结果:EB病毒感染患儿首发症状主要有发热、咳嗽、咽痛及淋巴结肿大等;对比分析急性组与慢性组实验室指标可知,急性组总T细胞、CD8+T细胞及CD8+T细胞/HLA-DR均显著高于慢性组(P<0.05)。结论:EB病毒感染患儿临床表现复杂,而且常累及多种系统,总T细胞、CD8+T细胞及CD8+T细胞/HLA-DR等可作为急性与慢性的判别标准,同时加强CD8+T细胞监测,对预后也有着积极的意义,应加强重视。  相似文献   

3.
目的:观察低强度噪声暴露不同时间对雄性大鼠T淋巴细胞亚群及其功能的影响.方法:将大鼠暴露于85dB(A)噪声中,在不同的时间(1天、7天、21天)对大鼠CD4 、CD8 T细胞含量、脾淋巴细胞增殖功能进行检测.结果:在噪声暴露不同时间,大鼠CD4 /CD8 比值与噪声暴露前比较均下降(P<0.05);脾淋巴细胞增殖功能均呈下降趋势,且与对照组比较差异有显著性(P<0.05);结论:低强度噪声可抑制雄性大鼠T淋巴细胞亚群及其功能.  相似文献   

4.
目的:检测子宫内膜异位症患者手术前后外周血T淋巴细胞亚群变化,了解病人细胞免疫功能状况。方法:采用间接免疫荧光法检测子宫内膜异位症患者体内CD3~ 、CD4~ 、CD8~ 细胞水平,并取同龄正常妇女作为对照。结果:(1)手术前与正常妇女相比,子宫内膜异位症患者体内存在CD8~ 细胞比例升高,CD4~ 细胞比例和CD4~ /CD8~ 比值下降;(2)手术后病人CD8~ 细胞逐渐回降,而CD4~ 细胞和CD4~ /CD8~ 比值呈现回升趋势。结论:子宫内膜异位症患者存在T细胞免疫异常,这种异常可在手术治疗后得以恢复。  相似文献   

5.
目的:探讨肺癌小鼠CD4+T细胞、CD8+T细胞和骨髓源性抑制细胞( MDSC)的比例和数量变化。方法:采用LLC细胞皮下接种制备小鼠肺癌肿瘤模型,流式细胞仪检测肿瘤小鼠骨髓、脾脏、淋巴结内CD4+T细胞、CD8+T细胞和MDSC的数量变化。结果:与正常对照小鼠相比,肿瘤小鼠脾脏、淋巴结内CD4+T细胞、CD8+T细胞的比例和数量显著降低,骨髓CD4+T细胞变化不明显,但CD8+T细胞显著减少。 MDSC 在肿瘤小鼠骨髓、脾脏和淋巴结内的比例和数量则显著增加。结论:肺癌小鼠T细胞数量降低而MDSC细胞数量增加,诱导对肿瘤细胞的免疫耐受。  相似文献   

6.
目的:检测正常孕妇及妊高征患者外周血T淋巴细胞亚群变化,了解病人细胞免疫功能状况。方法:采用间接免疫荧光法检测正常孕妇和妊高征患者体内CD3~ 、CD4~ 、CD8~ 细胞水平,并取正常未孕妇女作为对照。结果:(1)与正常未孕妇女相比,正常孕妇体内存在CD8~ 细胞比例增高,CD4~ 细胞比例和CD4~ /CD8~ 比值下降;(2)妊高征患者随病情加重,CD8~ 细胞逐渐降低,而CD4~ 细胞和CD4~ /CD8~ 比值呈现逐渐升高的趋势,重度患者各项指标接近正常未孕妇女水平。结论:正常孕妇呈现相对免疫抑制状态,与之相比,妊高征患者细胞免疫功能失调,这与妊高征病情直接相关。  相似文献   

7.
作者在激素性股骨头坏死兔模型的制作过程中 ,对成年新西兰大耳白兔 30只 ,采用APAAP法检测兔外周血T细胞亚群水平进行了动态观察。结果显示CD3细胞、CD4细胞、及CD8细胞百分率 ,均显著低于正常对照组相应指标。  相似文献   

8.
目的:探讨脑梗死患者外周血CD4 、CD8 -T淋巴细胞亚群和血清肿瘤坏死因子-α(TNF-α)在脑梗死发病中的作用及两者的相关关系。方法:运用流式细胞仪及酶联免疫检测仪,对45例急性脑梗死患者(观察组)和30名健康体检者(对照组)外周血CD4 、CD8 -T淋巴细胞百分率和血清中TNF-α浓度进行检测,并分析两者的相关性。结果:急性脑梗死患者外周血中CD8 -T淋巴细胞和血清中TNF-α浓度均比对照组显著增加,CD4 -T淋巴细胞及CD4 /CD8 明显减低,且随病情加重而显著改变。结论:急性脑梗死时,患者外周血中CD4 、CD8 -T淋巴细胞和血清中TNF-α浓度异常改变,参与了急性脑梗死的异常病情反应,在脑梗死发病中起重要作用。  相似文献   

9.
胃肠道癌术后化疗T细胞亚群和sIL-2R的比较研究   总被引:2,自引:0,他引:2  
目的:比较化疗前后T细胞亚群和sIL-2R水平及术后腹腔化疗和静脉化疗T细胞亚群和sIL-2R水平有无差异。方法:54例胃肠道癌症患者,分两组27例,一组接受腹腔化疗,另一组接受静脉化疗,检测血清中T细胞亚群和sIL-2R水平。结果:化疗后血清CD3、CD4和sIL-2R水平较化疗前明显下降(P<0.01)。CD3、CD4、CD8在两治疗组之间相似(P>0.01),但sIL-2R水平腹腔化疗低(0.05P相似文献   

10.
《莆田学院学报》2016,(5):18-21
探讨n CPAP对OSAHS患者血清hs-CRP和T淋巴细胞亚群(T-LS)水平的影响。选取42例初次确诊为重度OSAHS且行n CPAP治疗的患者为观察组,同期选取30例正常人为对照组,检测观察组患者治疗前、后的血清hs-CRP及T-LS水平变化,并与对照组比较。结果,观察组治疗前的hs-CRP水平明显高于对照组(P<0.05),CD3+CD4+T细胞水平明显低于对照组(P<0.05);经治疗3个月后,hs-CRP水平明显下降(P<0.05),CD3+CD4+T细胞水平明显升高(P<0.05),并接近对照组水平。结果表明,OSAHS患者体内存在hs-CRP水平升高及CD3+CD4+T细胞水平下降,n CPAP治疗可以明显改善OSAHS患者的hs-CRP及T-LS水平,缓解病情恶化。  相似文献   

11.
为明确襄樊地区哮喘患儿的变应原种类,为本地区哮喘儿童的防治方案提供科学依据,应用皮肤点刺试验,对160例哮喘患儿进行多种吸入性变应原测试。结果显示:皮肤点刺试验(APT)阳性率较高,变应原以螨虫最多,其次为霉菌及皮毛。  相似文献   

12.
Children's perceptions of caregivers as a secure base have been linked with socioemotional outcomes, but little is known about connections to physical health. We examined whether secure base representations are associated with children's symptoms, family management strategies, and inflammatory processes in children with asthma. Participants included 308 children (ages 8–17) and one parent. Children completed a blood draw to measure asthma-related immune functions and reported on perceptions of their mothers as a secure base and their asthma symptoms. Dyads completed interviews about asthma management. Analyses revealed that children's secure base perceptions were associated with better family asthma management and lower Type 2 T-helper cell cytokine production. These findings suggest that secure base representations may be protective for children with asthma.  相似文献   

13.
采用适用于石蜡切片的新近发展的抗体,对20例在临床病理上符合恶性组织细胞增生症(简称恶组)特点的病例进行了其细胞属性的探讨.发现大多数病例的瘤细胞为组织细胞起源的可能性大;5例肠型恶组,其中4例瘤细胞表达 T 细胞标记,表明其应归属于 T 淋巴细胞系列肿瘤;另一例肠型恶组表达组织细胞标记,可能代表真正的组织细胞源性的肠型恶组;此外,初步观察表明除肉芽肿样型外恶组的其它三种病理组织学类型间无明显免疫组化表型的不同.  相似文献   

14.
目的:研究IL-4mRNA和IL-4蛋白在哮喘大鼠CD34^+细胞中的转录表达及孟鲁司特(montelukast,MK)对其表达的影响。方法:将SD大鼠随机分为3组:哮喘组、MK组和正常对照组。用卵白蛋白制备大鼠哮喘模型。应用双抗体夹心酶联免疫吸附试验测定血浆中IL-4和γ-干扰素(IFN-γ)浓度;用MiniMACS磁珠分选系统分离骨髓CD34^+细胞;采用SYBRGREEN I荧光实时定量PCR法测定CD34^+细胞中IL-4mRNA的相对表达量。采用免疫组化技术测定CD34+细胞中IL-4蛋白的表达量。结果:哮喘组骨髓CD34+细胞中IL-4mR.NA和IL-4蛋白的表达量高于其它各组(p〈0.01);哮喘组除了IFN-1水平低外,IL-4浓度和嗜酸性粒细胞(EOS)绝对值都是三组中最高的(P〈0.01);除哮喘组外,其余组的各项指标相近(P〉0.05)。IL-4mRNA表达量与IL-4浓度、Eos绝对值呈正相关(P〈0.01),与IFN-γ浓度呈负相关(P〈0.01)。结论:哮喘大鼠骨髓CD34^+细胞中IL-4 mKNA的表达增强;孟鲁司特可以下调IL-4mRNA的表达。可能成为其抑制哮喘气道炎症形成的重要机制之一。  相似文献   

15.
目的:了解肾细胞癌(RCC)患者抗瘤免疫状况及TIL与肾癌愈后关系。方法:应用免疫组织化学PAP法和单克隆抗体对肾细胞癌原位肿瘤浸润琳巴细胞的构成与分布及活化进行研究,检测的TIL主要表面表标志包括CD_3、CD_4、CD_8、CD_(25)和HLA-DR抗原。结果:(1)RCC患者肿瘤原位TIL以·OT细胞为主(CD_3 ),其中CD_8 细胞明显高于CD_4 细胞,其CD_4 /CD_8 比值与RCC临床分期成负相关。(2)在肿瘤原位,有部分表达活化标志CD_(25)或HLA-DR抗原T细胞存在。(3)RCC患者其TIL在瘤组织中呈弥散状分布。结论 肾癌TIL反映了肾癌患者局部抗瘤免疫状况,且与分期负相关,可做为肾癌愈后的客观检测指标。  相似文献   

16.
Objectives: To explore the mechanism of development and aggressiveness in gastric carcinomas by investigating the expression and role of CD97 and its cellular ligand CD55 in gastric carcinomas. Methods: Tumor and corresponding normal mucosal tissue, collected from 39 gastric carcinoma patients, were examined by immunohistochemistry and RT-PCR for the expression of CD97 and CD55. Results: CD97stalk was strongly stained on scattered tumor cells or small tumor cell clusters at the invasion front of gastric carcinomas. The expression of CD97stalk was frequently observed in tumors of stage Ⅰ and T1 gastric carcinoma patients. The expression of CD97stalk between Stage Ⅰ and Stage Ⅱ, Ⅲ, Ⅳ specimens showed significant difference (P<0.05), between T1 and T2, T3, T4 specimens also showed significant difference (P<0.05). Specimens with tumor invasion depth limited in mucosa of T 1 specimens showed higher positive CD55 expression than specimens with the same tumor invasion depth in T2, T3, T4 specimens, the expression of CD55 between T1 and T2, T3, T4 specimens was significantly different (P<0.05).There was strong correlation between the distribution patterns of CD97stalk and CD55 on tumor tissues (r=0.73, P<0.05). Signet ring cell carcinomas frequently contained strong CD97stalk and CD55-staining. Conclusions: Our results suggest that CD97stalk is probably involved in the growth, invasion and aggressiveness of gastric carcinomas by binding its cellular ligand CD55. CD97stalk and CD55 could be useful as molecular markers for prognosis and therapy of gastric carcinoma patients.  相似文献   

17.
This study aims to describe the types of intrafamilial violence perpetrated against children according to living conditions, family factors, and child characteristics, and to identify the association between types of intrafamilial violence and asthma symptoms in atopic and non-atopic children. A cross-sectional study was carried out with 1,370 caregivers as part of the Social Changes, Asthma and Allergy in Latin America (SCAALA) study, conducted in 2006 in Brazil. The study population was selected by random sampling. The main outcome measures were atopic and non-atopic asthma. We investigate the association between intrafamilial violence and asthma symptoms in atopic and non-atopic children. A backward multivariate logistic polytomous regression was performed to verify the main association. Nonviolent discipline (NVD) and maltreatment nonviolent discipline (MNVD) were positively associated with non-atopic asthma symptoms (NVD: odds ratio (OR) = 1.95/95% confidence interval (CI) = 1.17–3.25; MNVD: OR = 1.95/95% CI = 1.19–3.20). However, for the most severe intrafamilial violence, this association was not found after control of potential confounders. This study demonstrates the effect of types of intrafamilial violence on non-atopic asthma. Intrafamilial violence against children represents one more component in the determination of non-atopic asthma in Latin America.  相似文献   

18.
1IntroductionHyper-IgMsyndrome(HIM)isarareimmunodeficiencycharacterizedbyanincreasedsusceptibilitytorecurrentinfectionsandmar...  相似文献   

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