胸腺肽α1对原发性肝癌围手术期免疫功能的影响

目的:研究胸腺肽α1对原发性肝癌患者围手术期免疫功能的影响.方法:103例确诊为原发性肝癌患者分为2组,A组采用胸腺肽α1+手术治疗(n=35),B组仅手术治疗(n=68).胸腺肽α1治疗前后及手术前、手术后7,14,21 d用流式细胞仪检测CD3+,CD4+,CD8+,CD8+CD28+,CD16+CD56+的变化,MTT比色法测定IL-2活性.结果:A组CD8+,CD4+/CD8+,CD8+CD28+,CD16+CD56+及IL-2均明显低于正常对照组(F=8.2,P=0.005);术前经胸腺肽α1治疗后CD4+/CD8+,CD16+CD56+较治疗前增高(F=8.4,P=0.004);术后7 d CD4+/CD8+,CD8+CD28+,CD16+CD56+较术前增高(F=4.7,P=0.005或F=3.5,P=0.04),术后14 d IL-2也增高(F=3.6,P=0.03).B组术后7 d,CD4+,CD8+,CD4+/CD8+,CD8+CD28+,CD16+CD56+较术前明显降低(F=5.4,P=0.006或F=3.6,P=0.02),术后14d,CD8+,CD8+CD28+仍然低于术前(F=5.0,P=0.007),其他指标有所恢复;术后21 d,CD8+仍未恢复至术前水平(F=6.3,P=0.000);B组术后7 d,CD3+,CD8+,CD4+/CD8+,CD8+CD28+,CD1 6+CD56+均明显低于A组(F=7.2,P=0.001).结论:肝癌患者存在免疫抑制,术后早期免疫抑制程度加重,围手术期胸腺肽α1治疗可有效改善肝癌围手术期免疫抑制状况.     

益气健脾方联合西药治疗对肠结核患者T细胞亚群的影响及临床疗效观察

[目的]探讨益气健脾方联合西药治疗对肠结核患者细胞免疫功能的影响及临床疗效.[方法]肠结核证属脾胃虚弱患者67例,随机分为对照组(33例)和治疗组(34例),在相同抗痨方案基础上,治疗组在强化期同时服用益气健脾中药,分别检测2组治疗前后T细胞亚群水平及评价疗效.[结果]对照组治疗后T细胞亚群CD3+、CD4+、CD8+、CD4 +/CD8+值略有增加,差异不明显(P＞0.05);治疗组治疗后T细胞哑群CD3+、CD4+、CD8+、CD4 +/CD8+值明显增加(P＜0.05).治疗组治愈率、总有效率均高于对照组(P＜0.05).[结论]中西医结合治疗肠结核疗效明显,能显著提高细胞免疫功能.     

肝癌患者血清铁含量及手术前后T淋巴细胞亚群变化

目的探讨肝癌患者血清铁(Fe)含量及手术前后T淋巴细胞亚群变化,揭示Fe含量与肝癌的关系及手术对患者免疫功能的影响。方法选取100例原发性肝癌患者(肝癌组)及50名门诊体检正常者(对照组),测定血清Fe、铁蛋白(Ferr)、转铁蛋白(TRF)含量,术前第2天及术后第3天、术后第7天、术后第14天T淋巴细胞亚群CD3+、CD4+、CD8+、CD4+/CD8+水平。结果肝癌组患者血清Fe、Ferr含量明显高于对照组,TRF含量低于对照组,两组相比,差异有统计学意义(P0.05);肝癌组术前CD3+、CD4+、CD4+/CD8+水平低于对照组,CD8+水平高于对照组,两组相比,差异有统计学意义(P0.05);肝癌组术后3 d、7 d CD3+、CD4+、CD8+、CD4+/CD8+水平明显低于术前,差异有统计学意义(P0.05);术后14 d与术前相比,水平接近,差异无统计学意义(P0.05)。结论肝癌患者Fe、Ferr含量较正常人群明显增高,TRF、细胞免疫较正常人群明显下降,在术后细胞免疫被抑制状态更为严重,后随着时间延长有所恢复,因而对肝癌患者应进行血清Fe、Ferr、TRF含量监测及术后免疫干预治疗。     

腹腔镜下根治术对进展期老年胃癌患者细胞免疫功能的影响

目的观察腹腔镜胃癌根治术对老年胃癌患者的细胞免疫功能的影响。方法选取102例进展期胃癌患者(≥65岁),根据随机数字表随机分成腹腔镜组50例、开腹组52例,分别行腹腔镜胃癌根治术和开腹胃癌根治术,测定患者术前1 d及术后第1、7、14天外周血中CD3+、CD4+、CD8+、CD4+/CD8+、CD19、自然杀伤(NK)细胞比例、白细胞介素(IL)-6与C反应蛋白(CRP)的水平。结果术后第1天,两组患者外周血CD3+、CD4+、CD4+/CD8+、CD19及NK细胞活性较术前均明显下降(P0.05),腹腔镜组与开腹组比较无明显差异(P0.05)。腹腔镜组术后7 d上述指标迅速恢复至接近术前水平,而开腹组术后7 d内仍持续处于低水平,术后14 d才逐渐恢复至接近术前水平。与开腹组相比,腹腔镜组患者上述指标术后7 d及14 d均显著升高(P0.05)。术后第1、7天2组患者外周血IL-6、CRP水平较术前明显升高(P0.05),开腹组较腹腔镜组升高更明显(P0.05)。另外与开腹组相比,腹腔镜组术手术时间缩短(P0.05),且术中出血量显著减少(P0.05)。结论腹腔镜胃癌根治术较开腹胃癌根治术对患者造成的损伤较小,对患者术后细胞免疫功能的影响亦较小。     

胸腺肽α1对心脏瓣膜置换术围术期炎症因子及细胞免疫功能的影响

目的 探讨胸腺肽α1对心脏瓣膜置换术围术期炎症因子及细胞免疫功能的影响.方法 入选2010年8月至2011年10月在该院行心脏瓣膜置换术患者40例,根据是否给予胸腺肽α1将患者分为观察组和对照组,每组20例,观察组术前1d开始给予胸腺肽α1 1.6 mg/d肌注,7d为1个疗程,对照组不给任何免疫抑制剂,比较两组患者围术期炎症因子及细胞免疫功能的变化.结果 两组患者手术均顺利完成,手术过程中,两组患者的肿瘤坏死因子(TNF)-α、白介素(IL)-10、IL-2水平均较术前显著升高(P＜0.01);手术后开始下降,至手术后第3天,观察组TNF-α、IL-10、IL-2水平仍高于手术前,但是低于对照组(P＜0.05);至手术第7天,各指标均恢复至术前水平(P＞0.05);两组患者手术中较术前淋巴细胞降低(P＜0.05);术后第7天开始上升,上升速度快于对照组(P＜0.05);两组患者CD4+T和CD4+/CD8+术中较术前均显著降低(P＜0.05),术后恢复速度快于对照组,第3、7天均高于对照组(P＜0.05);CD8+T术中上升,均高于术前(P＜0.05),术后开始下降,速度快于对照组,第3、7天均低于对照组(P＜0.05).结论 胸腺肽α1对心脏瓣膜置换术围术期细胞免疫功能低下有治疗作用,同时可以缓解全身炎性反应.     

老年带状疱疹患者急性期T细胞亚群变化及其与疱疹相关性疼痛的关系

目的 检测老年带状疱疹患者急性期外周血T细胞亚群水平,观察患者急性期机体细胞免疫状态与带状疱疹急性期疼痛(AHP)和后遗神经痛(PHN)的关系。 方法 选择急性期老年带状疱疹患者60例,根据AHP视觉模拟评分(visual analogue scales,VAS)分为轻中度AHP组：VAS评分≤6分,重度AHP组：VAS评分＞6分;再根据随访结果是否发生带状疱疹后PHN分为非PHN组和PHN组。选取年龄、性别相匹配的门诊健康体检者25例作为对照组。记录患者AHP最严重时VAS评分,采用流式细胞测定技术测定急性期外周血T细胞亚群CD3+、CD4+和CD8+百分比及计算CD4 +/CD8+比值。 结果 各组年龄、性别差异无统计学意义(P＞0.05);轻中度AHP组、重度AHP组、非PHN组和PHN组CD3+、CD4+、CD8+表达与对照组比较均降低(P＜0.05),重度AHP组CD4+表达低于轻中度AHP组(P＜0.05) ;CD4 +/CD8+比值轻中度AHP组、非PHN组均高于对照组(P＜0.05),重度AHP组低于轻中度AHP组(P＜0.05),PHN组低于非PHN组(P＜0.05);PHN组AHP VAS评分高于非PHN组(P＜0.05)。 结论 老年带状疱疹患者急性期普遍存在细胞免疫功能低下,表现为T细胞亚群百分比降低;重度AHP患者细胞免疫状态更低。PHN患者在疱疹急性期存在更严重的局部损害和更低下免疫应答。     

动脉灌注介入化疗联合同期放化疗治疗局部晚期鼻咽癌的临床疗效及对免疫功能的影响

目的探讨动脉灌注介导化疗联合同期放化疗治疗局部晚期鼻咽癌(LANC)的临床疗效及对患者免疫功能的影响。方法收集2009年1月至2013年6月该院首次接受治疗的LANC患者〔T3T4和(或)N2N3〕100例,随机数字表法分为试验组和对照组各50例,试验组行动脉灌注介导化疗联合后期同步放化疗,对照组行经静脉诱导化疗联合放疗,诱导化疗方案同试验组,静脉给药。分别于诱导化疗前、化疗1、2个周期后抽取两组患者外周血,比较两组T细胞亚群的变化,同时比较两组全程放化疗后的近期临床疗效及不良反应。结果 1全程放化疗后12 w,试验组患者完全缓解(CR)率显著高于对照组(χ2=13.255,P=0.000)。2两组毒副反应发生率差异无统计学意义(χ2=0.396,P=0.529)。3诱导化疗前,两组外周血CD4+,CD8+,CD4+/CD8+比值均相似(P0.05);化疗第1个周期后,两组T细胞亚群较治疗前有所减低,但差异不具备统计学意义(P0.05);诱导化疗2个周期后,两组外周血CD4+,CD8+,CD4+/CD8+比值明显下降,与治疗前比较差异显著(P0.05),而试验组CD4+,CD8+,CD4+/CD8+比值下降程度低,与对照组比较差异显著(P0.05)。结论动脉灌注介导化疗联合同期放化疗治疗LANC患者近期临床疗效明显,与静脉化疗相比,对T细胞免疫功能的影响较小,值得进一步加大病例数研究。     

老年2型糖尿病肾病患者外周血辅助性T细胞及调节性T细胞表达分析

目的分析老年2型糖尿病肾病患者外周血辅助性T细胞(CD_3^+,CD_4^+,CD_8^+,CD_4^+/CD_8^+)及调节性T细胞(CD_4^+CD_(25)^+Treg和CD_4^+CD_(25)^+Foxp_3^+Treg)表达现况。方法连续选择2017年1月至12月在阜新市中心医院肾内科就诊的老年糖尿病肾病患者49例,对照组为同期在我院进行体检的健康老年人41例。比较两组对象外周血CD_3^+,CD_4^+,CD_8^+,CD_4^+/CD_8^+和CD^4CD25^+Treg,CD_4^+CD_(25)^+Foxp_3^+Treg等细胞免疫学指标。结果老年糖尿病肾病组外周血CD_3^+及CD_8^+表达浓度均明显低于对照组,而CD_4^+浓度及CD_4^+/CD_8^+比值则明显高于对照组(P <0. 05,P <0. 01)。同时,老年糖尿病肾病组外周血CD_4CD_(25)^+Treg,CD_4^+CD_(25)^+Foxp_3^+Treg表达浓度均明显低于对照组(P <0. 05,P <0. 01)。结论老年糖尿病肾病患者存在明确的外周血辅助性T细胞和调节性T细胞表达异常。     

肺肿瘤患者围手术期CD28及T细胞亚群检测的临床意义

目的:检测肺肿瘤患者手术前后外周血CD28和T淋巴细胞亚群的表达变化并探讨其意义。方法:采用流式细胞术检测63例肺肿瘤患者手术前后外周血CD28及T淋巴细胞亚群的表达,并与健康对照组及肺良性肿瘤组作比较。结果:肺肿瘤组术前外周血中CD3+、CD4+、CD4+/CD8+、CD8+CD28+水平明显低于健康对照组和肺良性肿瘤组,而CD8+水平明显升高。肺肿瘤组CD8+表达水平随着临床分期的进展而有显著升高,CD3+、CD4+、CD4+/CD8+和CD8+CD28+水平随着临床分期的进展而有显著降低。不同病理分型的肺肿瘤患者之间外周血CD28及T细胞亚群水平无明显差异。肺肿瘤患者术后CD3+、CD4+、CD4+/CD8+和CD8+CD28+表达显著升高;CD8+的表达明显降低,但仍未恢复至健康水平。结论:肺肿瘤患者CD3+、CD4+、CD4+/CD8+和CD8+CD28+表达水平低下,从而影响B7-CD28共刺激通路,使T细胞不能有效的清除肿瘤,提示肺肿瘤患者机体免疫功能低下,施行手术切除肿瘤有助于改善患者的细胞免疫功能。     

黄芪颗粒联合化疗治疗对老年胃癌患者生活质量及外周血T淋巴细胞亚群水平的影响

目的探讨黄芪颗粒联合化疗治疗在改善老年胃癌患者生活质量及外周血中T淋巴细胞亚群水平的影响。方法选取2015年1月至2016年2月于该院治疗的老年胃癌患者84例随机分成观察组和对照组,观察组行黄芪颗粒联合化疗治疗其胃癌,对照组单纯行化疗治疗,比较两组患者治疗的客观缓解率及并发症的发生率,治疗前后的生存质量状况以及T细胞亚群(CD3~+,CD4~+,CD8~+,CD4~+/CD8~+)的变化情况。结果观察组治疗的总有效率明显高于对照组(P0.05),并发症发生率略低于对照组,但无统计学意义(χ~2=0.17,P0.05)。两组患者治疗前的生存质量评分及T细胞亚群数量比较无统计学意义(P0.05),治疗后观察组生存质量评分明显高于对照组,其T细胞亚群CD3~+,CD4~+,CD4~+/CD8~+水平明显高于对照组,CD8~+明显低于对照组(P0.05)。结论黄芪颗粒联合化疗治疗老年胃癌患者可提高治疗的总有效率,提高其受到抑制的外周血中T淋巴细胞亚群水平,降低并发症的发生率,改善患者的生活质量,治疗效果显著,可用于临床推广。     

结直肠癌NOSE术的近期效果及对机体细胞免疫功能影响的研究

目的探讨腹腔镜结直肠癌标本经自然腔道取出手术（natural orifice specimen extraction,NOSE）的近期效果及对患者细胞免疫功能的影响。 方法收集湖北省肿瘤医院2014年9月至2016年3月期间接受腹腔镜结直肠癌根治手术的89例患者的临床病理资料,其中标本经肛门取出的腹腔镜结直肠癌根治术患者31例（NOSE组）,传统腹腔镜辅助结直肠癌根治术患者58例（LAP组）,比较两组患者手术的近期效果及细胞免疫功能指标变化。 结果两组患者术前的各临床指标及细胞免疫功能指标相似,差异均无统计学意义（均P>0.05）。患者手术时间、手术并发症发生率及淋巴结检出数目两组差异均无统计学意义（均P>0.05）。NOSE组术后疼痛评分（2.8±0.9分）显著少于LAP组（3.7±1.2分）,（t=3.766,P<0.001）。NOSE组和LAP组患者术后排气时间分别为2.6±0.8 d和3.3±0.8 d,（t=4.427,P<0.001）。NOSE组患者术后住院时间较LAP组短,两组分别为7.8±4.3 d和10.3±5.4 d,（t=2.213,P=0.030）。NOSE组与LAP组患者术后第3天CD4^＋T细胞与术前相比均有显著下降（均P<0.05）,且LAP组术后第3天CD4^＋T细胞比例更低,两组差异有统计学意义（t=4.017,P=0.002）。术后第3天CD8^＋T细胞及CD4^＋ /CD8^＋与术前相比,LAP组下降明显,差异有统计学意义（均P<0.05）,而NOSE组下降不明显（均P>0.05）。两组患者术后CRP水平均显著升高（均P<0.05）,且LAP组升高更加明显,两组术后第3天、第6天CRP水平差异均有统计学意义,均P<0.05。 结论结直肠癌NOSE术与传统腹腔镜辅助手术相比,具有更加优越的微创效果,对患者细胞免疫功能影响更小。     

Perioperative cimetidine administration promotes peripheral blood lymphocytes and tumor infiltrating lymphocytes in patients with gastrointestinal cancer： Results of a randomized controlled clinical trial

AIM: To study the effects of perioperative administration of cimetidine (CIM) on peripheral blood lymphocytes, natural killer (NK) cells and tumor infiltrating lymphocytes (TIL) in patients with gastrointestinal (GI) cancer. METHODS: Forty-nine GI cancer patients were randomized into treatment group, who took CIM in perioperative period, and control group, who did not take the drug. The treatment was initiated 7 days before operation and continued for 10 days after surgery. At baseline examination before operation, on the 2nd and 10th postoperative days, total T lymphocytes, T helper cells, T suppressor cells, and NK cells in peripheral blood were measured respectively by immunocytochemical method using mouse-anti human CD(3), CD(4), CD(8) and CD(57) monoclonal antibodies. Blood samples from 20 healthy volunteers were treated in the same way as normal controls. Surgical specimens were examined during routine histopathological evaluation for the presence of TIL in tumor margin. Immunohistochemical study was performed to measure the proportion of T and B lymphocytes in TIL population. T and B lymphocytes were detected respectively using mouse-anti-human CD(3) and CD(20) monoclonal antibodies. RESULTS: In comparison with normal controls, both the treatment and control groups had decreased T cells, T helper cells and NK cells at baseline. In control group, total T cells, T helper cells and NK cells declined continuously with the disease progression and the decrease became more obvious after operation. From baseline to the 2nd postoperative day, the proportion of total T cells, T helper cells, and NK cells went down from 60.5+/-4.6% to 56.2+/-3.8%, 33.4+/-3.7% to 28.1+/-3.4%, and 15.0+/-2.8% to 14.2+/-2.2%, respectively. On the other hand, there were significant improvements in these parameters after CIM treatment. On the 10th postoperative day, the treatment group had significantly higher percentages of total T cells, T helper cells and NK cells than control group. Moreover, CIM treatment also boosted TIL response, as was reflected by findings that 68% (17/25) of the patients in treatment group had significant TIL responses and only 25% (6/24) of the cases had discernible TIL responses (P<0.01). CONCLUSION: Perioperative application of CIM to GI cancer patients could help restore the diminished cellular immunity induced by tumor burden and surgical maneuver. The drug could also boost TIL responses to tumor. These effects suggest that the drug be used as an immunomodulator for GI cancer patients.     

Effect of Fuzheng Yiliu decoction combined with chemotherapy on patients with intermediate and late stage gastrointestinal cancer

AIM: To investigate the therapeutic effects of Fuzheng Yiliu (strengthening the body resistance to inhibit tumor) decoction combined with chemotherapy on the patients with intermediate and late stage gastrointestinal cancer. METHODS: Sixty patients were randomly divided into treatment group (chemotherapy combined with Fuzheng Yiliu decoction) and control group (chemotherapy alone). Four indexes, including the tumor recent remission rate (RR), the change of main symptoms, the toxic and side effects caused by chemotherapy and the change of performance status, were observed in the patients. Peripheral blood contents of CD3+, CD4+, CD8+ cells, CD4+/CD8+ and soluble interleukin-2 receptor (sIL-2R) were tested before and after treatment and the values were compared with those of healthy peoples. RESULTS: The improving rate of main symptoms (69.6%) and performance status (56.7%) were significantly higher in the treatment group than in the control group (34.8%, 26.7%, P<0.05). The occurrence rates of grade II toxic and side-effects on both bone marrow (13.3%) and digestive tract (30%) were lower in the treatment group compared to the control group (36.7%, 63.3%, P<0.05). Before treatment, the proportion of CD3+, CD4+ and CD4+/CD8+ decreased and the proportion of CD8+ and SIL-2R raised markedly both in the control group and treatment group as compared to the healttiy people. After treatment, that increased of CD3+, CD4+, CD4+/CD8+ increased (62.25±10.01% vs 68.31±9.72%, 36.83±10.44% vs 42.6±9.62%, 1.24±0.65 vs l.66±0.85, P<0.05) and the values of CD8+ and sIL-2R decreased obviously (33.06±7.69% vs 29.24±6.25%, 588.23±216.86 U/mL vs 475.87±211.36 U/mL,P<0.05) in the treatment group, whereas these values were opposite in the control group (64.22±6.91% vs60.63±5.75%,35.62±7.49% vs31.53±5.53%, 32.95±8.28% vs 37.14±7.48%, 1.17±0.43 vs 0.94±0.43, 573.63±214.32 U/mL vs 692.17?21.33 U/mL, P<0.05). CONCLUSION: Fuzheng Yiliu decoction can enhance therapeutic effects of chemotherapy on malignant gastrointestinal tumor, and also reduce the toxic and side effects on bone marrow and digestive tract, thereby improving the quality of life and cellular immunity in patients with malignant gastrointestinal tumor.     

右美托咪定对老年肿瘤患者细胞免疫功能的影响

目的观察右美托咪定（dexmedetomidine,DEX）对老年胃肠道肿瘤患者术中T淋巴细胞亚群和自然杀伤细胞（natural killer,NK）数量的影响。方法40例胃肠道肿瘤根治手术的老年患者随机分为观察组和对照组。观察组麻醉前静脉给予负荷剂量DEX0．5μg／kg,术中以DEX0．3μg／kg·h。维持,对照组静脉给予0．9％氯化钠。于麻醉前、手术开始后1h、手术结束后1h及术后24h抽取外周静脉血,用流式细胞仪检测T淋巴细胞亚群（CD3＋、CD4＋、CD8＋）和NK细胞的变化。结果两组手术开始后1h、手术结束后1h,CD3＋、CD4＋、CD4＋／CD8＋和NK细胞均较麻醉前下降,对照组低于观察组（P〈0．05）;术后24h,两组各指标有所回升,但对照组仍低于麻醉前水平和观察组（P〈0．05）。结论右美托咪定可减轻老年胃肠道肿瘤患者术中T淋巴亚群和NK细胞下降的程度,改善机体细胞免疫功能的抑制。     

The effects of gonadotropin treatment on the immunological features of male patients with idiopathic hypogonadotropic hypogonadism

There is a significant line of evidence for a role of androgens in the modulation of the immune system. However, little is known about immunological features of male patients with idiopathic hypogonadotropic hypogonadism (IHH) and the potential effects of gonadotropin treatment. Thus, the objective of this study was to evaluate the levels of selected soluble immune parameters [IgA, IgG, IgM, C3c, C4, interleukin-2 (IL-2), and IL-4], the CD4+/CD8 ratio, and counts of total lymphocyte and some subpopulation of lymphocytes (CD3+, CD4+, CD8+, and CD19+ cells) before and after gonadotropin treatment in men with IHH. Twenty-nine IHH patients and 19 age-matched healthy controls were included in the study. The patients were treated with human menopausal gonadotropin/hCG for 6 months. The pretreatment levels of serum Igs, C3c, IL-2, and IL-4 in the patients were significantly higher than those in the controls (P<0.001 for all). After treatment, all Igs (P<0.001), C3c (P<0.01), and IL-2 and IL-4 levels (P<0.005) were decreased significantly compared to pretreatment levels. Pretreatment lymphocyte counts (P<0.05); the percentages of CD3+ cells (P<0.001), CD4+ cells (P< 0.001), and CD19+ cells (P<0.001); and the CD4/CD8+ ratio in the patient group were significantly higher (P<0.05) than those in the controls. After treatment, the lymphocyte count (P<0.001); CD3+ (P<0.01), CD4+ (P<0.001), and CD19+ (P<0.005) cells; and the CD4-/CD8+ ratio (P<0.001) were decreased, but CD8+ cells were increased significantly (P<0.001). In summary, lack of testosterone action results in the enhancement of cellular and humoral immunity. The results of this study allowed us to conclude that testosterone deficiency affects both cell-mediated and humoral immunity, and these may be modulated with gonadotropin therapy in male patients with IHH.     

右美托咪定对食管裂孔疝合并胃食管反流病患者围术期免疫功能的影响

目的探讨右美托咪定对食管裂孔疝合并胃食管反流病患者围术期免疫功能的影响。 方法选取2014年3月至2016年3月,新疆维吾尔自治区人民医院收治并择期行全麻下腹腔镜手术治疗的食管裂孔疝合并胃食管反流病患者180例为研究对象,采用随机数字表法将上述研究对象分为观察组和对照组,各90例。观察组在麻醉诱导前30 min给予负荷剂量的右美托咪定(0.5 μg/kg),手术开始后以维持剂量0.3 μg/(kg·h)的速率泵人至手术结束;而对照组患者给予等负荷量和维持剂量的生理盐水。分别在不同时间点,即麻醉前(T1)、患者手术结束时(T2)、患者手术结束后30 min(T3)及患者手术结束后24 h(T4)使用流式细胞仪检测T淋巴细胞亚群和NK细胞水平并记录不良反应发生情况。 结果2组患者在T1时点免疫功能指标如血清CD3＋、CD4＋、CD8＋、CD4＋/CD8＋和NK细胞水平比较,差异无统计学意义(P>0.05);与T1时点比较,2组患者在T2、T3和T4时点时CD3＋、CD4＋、CD4＋/CD8＋水平均显著降低;与对照组比较,观察组患者T2、T3和T4时CD3＋、CD4＋、CD4＋/CD8＋和NK水平明显升高(P<0.05)。与对照组比较,观察组心动过速、高血压发生情况有所降低(P<0.05),而心动过缓、低血压及苏醒延迟发生情况有所升高(P<0.05);寒颤、呼吸抑制的发生情况,2组比较,差异无统计学意义。 结论右美托咪定辅助麻醉可显著改善行腹腔镜下治疗食管裂孔疝合并胃食管反流病患者围术期机体免疫功能,值得临床推广。     

共刺激分子CD28 CD152在类风湿关节炎患者T细胞亚群上表达异常的研究

目的观察共刺激分子CD28,CD152在类风湿关节炎(RA)患者的T细胞亚群上的表达异常情况,探讨RA的发病机制及治疗手段.方法用流式细胞仪采用直接免疫荧光法测定39例RA患者和20名健康对照人外周血T细胞表面标志CD3,CD4,CD8的表达情况及CD28,CD152在CD4+T和CD8+T细胞上的表达.结果 RA患者CD3+CD4+细胞较正常对照组显著增高(P＜0.01),CD3+CD8+细胞较正常对照组显著降低(P＜0.05),CD4+T细胞上CD28的表达较对照组显著降低(P＜0.05),而CD8+T细胞上CD28的表达与对照组差异无显著性(P＞0.05);CD4+T和CD8+T细胞上CD152的表达都较对照组显著增高(P＜0.01).结论在RA患者的细胞免疫活化过程中首先表现为B7/CD28信号途径占优势,T细胞被激活,激活的T细胞大量分泌CD152,它与CD28竞争结合B7分子,CD152/B7途径转而占优势,下调或终止T细胞反应.同时CD28+细胞数目的减少或功能缺陷造成RA患者外周血单个核细胞凋亡加速,是诱发RA患者的局部病理损害的原因.阻断CD152和B7的相互作用可增强特异性T细胞应答,为RA的免疫学治疗提供理论依据.     

护理干预对无痛胃镜检查病人的影响观察

[目的]对无痛胃镜检查的病人给予综合护理干预,观察护理干预的临床应用效果,以期为临床提高护理服务水平提供理论依据。[方法]对本院进行无痛胃镜检查的病人80例,按照随机数字表随机分为两组:对照组36例,在行无痛胃镜检查中给予传统整体护理;观察组44例,在行无痛胃镜检查中给予传统整体护理的同时给予综合护理干预。对比观察两组病人胃镜检查时间、对护理的满意度、护理质量,以及焦虑的情绪状态。[结果]与对照组相比,观察组病人对护理的满意度、护理质量得分高,焦虑自评量表得分低,胃镜检查时间短,差异有统计学意义(P<0.05)。[结论]对行无痛胃镜检查的病人给予综合护理干预,可以缩短胃镜检查时间,改善病人的情绪状态,提高护理服务质量以及病人对护理的满意程度。     

TACE联合自体CIK治疗原发性肝癌患者的细胞免疫功能变化

目的 探讨肝动脉灌注化学治疗栓塞(TACE)联合细胞因子诱导的杀伤细胞(CIK)治疗原发性肝癌(PHC)患者的细胞免疫功能变化.方法 65例PHC患者分为2组.对照组和研究组分别为32例和33例.单纯TACE治疗组(对照组)常规行肝动脉灌注化学治疗栓塞术;TACE联合细胞免疫治疗组(研究组)采集外周血单个核细胞(PBM...     

酪酸梭菌活菌片对结直肠癌术后FOLFOX4方案化疗肠道菌群平衡、毒副反应及免疫炎症指标的影响

背景 结直肠癌术后亚叶酸钙+氟尿嘧啶+奥沙利铂(folinate 5-fluorouracil oxaliplatin,FOLFOX4)方案的化疗在清除和抑制癌细胞的同时,也破坏了身体正常的消化代谢,降低了免疫能力.酪酸梭菌作为有益菌,可以调节肠道菌群系统,增强机体免疫功能,因此从某种程度上可以用来调节化疗带来的负反应...