系统性红斑狼疮病人外周血白细胞中干扰素诱导核蛋白16 mRNA表达的研究

系统性红斑狼疮 (systemiclupuserythmatosus,SLE)是一个累及多系统多器官、临床表现复杂的自身免疫性疾病。其病因及发病机制至今未明 ,但已有许多研究表明SLE可能是一种多基因遗传病[1] 。在人类SLE家族中进行的全基因组扫描研究结果揭示SLE的可能易感区域有很多 ,包括1q2 1 2 3、1p36、1q4 1 4 2、16q13、2 0 p12 13、2 0 q11 13等[2 ] 。人类染色体 1q2 1 2 3区域因为含有大量与免疫功能有关的基因 ,正逐渐成为SLE研究的热点。干扰素诱导核蛋白 16(interferon induciblenucleoprotein 16 ,IFI 16 )是干扰素诱导核蛋白家族成员…     

诱导痰炎性标志物对老年人晚发哮喘严重程度判断和鉴别诊断的价值

目的探讨老年人晚发哮喘(LOA)患者诱导痰中嗜酸细胞和嗜酸细胞阳离子蛋白(ECP)水平与其严重程度的关系及与慢性阻塞性肺疾病(COPD)的鉴别诊断价值。方法随机选择54名LOA患者,检测肺功能并分别采用瑞氏染色及荧光免疫法检测高渗盐水诱导痰中嗜酸细胞数量和ECP水平。选择25例老年COPD患者和10例老年健康人作为对照。结果LOA患者诱导痰中嗜酸细胞数量和ECP水平与患者第一秒用力呼气容积占用力肺活量百分比呈显著负相关(r值为-0.68、-0.61,均为P<0.01)。患者诱导痰中嗜酸细胞数量〔(19.4±8.1)%〕和ECP水平〔(391±186)μg/L〕显著高于老年COPD组〔(3.1±1.4)%和(51±26)μg/L,P<0.01〕和老年健康组〔(1.2±0.7)%和(44±22)μg/L,P<0.01〕。以诱导痰中嗜酸细胞≥7%和ECP≥100μg/L为判别标准与COPD鉴别,诊断哮喘的敏感性分别为85.2%和87.0%;特异性分别为84.0%和88.0%。联合检测两者的敏感性和特异性分别为92.6%和92.0%。结论诱导痰中嗜酸细胞和ECP水平可了解LOA的严重程度,并有助于与老年COPD的鉴别。     

果糖二磷酸钠联合奥拉西坦治疗急性颅脑损伤的临床研究

目的 探讨果糖二磷酸钠联合奥拉西坦治疗急性颅脑损伤的安全性与有效性。方法 选取2017年9月-2018年9月在漯河市中心医院就诊的急性颅脑损伤患者101例,随机将患者分成对照组（50例）和治疗组（51例）两组。对照组患者口服奥拉西坦胶囊,2粒/次,3次/d。治疗组患者在对照组基础上口服果糖二磷酸钠片,4片/次,3次/d。两组患者均连续治疗14 d。观察两组患者临床疗效,同时比较治疗前后两组患者格拉斯哥昏迷指数（GCS）评分、国立卫生研究院卒中量表（NIHSS）评分,及血清Tau蛋白、S100β蛋白和人低氧诱导因子-1α（HIF-1α）水平。结果 治疗后,对照组和治疗组临床总有效率分别为78.00%、94.12%,两组比较差异具有统计学意义（P<0.05）。治疗后,两组患者GCS评分显著升高,NIHSS评分显著降低（P<0.05）,且治疗组比对照组改善的更显著（P<0.05）。治疗后,两组患者血清Tau蛋白、S100β蛋白以及HIF-1α水平均显著降低（P<0.05）,且治疗组患者明显低于对照组（P<0.05）。结论 果糖二磷酸钠联合奥拉西坦治疗急性颅脑损伤疗效显著、安全性高,且能够显著改善患者昏迷状态与神经功能,具有一定的临床推广应用价值。     

间充质干细胞成骨和成脂分化调控机制研究

间充质干细胞（MSCs）是人体内参与免疫平衡、维持组织器官的稳态和功能以及组织损伤修复的一类重要成体干细胞。MSCs具有自我更新能力和多向分化潜能,国际干细胞协会将MSCs向脂肪、成骨等细胞分化的能力作为其重要的检测标准。作为骨细胞和脂肪细胞的共同来源,MSCs在成骨和成脂分化之间相互协调和相互竞争,并在多种调控因素作用下保持着微妙的平衡。对MSCs成骨、成脂分化的信号通路、调控因素进行分析,并对其分化诱导方法以及鉴定方法进行总结,以期为MSCs基础研究及临床应用提供参考依据。     

缺氧诱导因子1α与核因子κB在炎症缺氧环境中相互作用研究进展

慢性炎症是一系列临床难治疾病（包括心血管损伤、炎性肠病、癌症等）的病理学基础,而缺氧是慢性炎症引起组织损伤的重要病理生理学机制。缺氧诱导因子1α（hypoxia inducible factor-1α,HIF-1α）对组织适应缺氧具有调节作用。缺氧时,HIF-1α通过激活适应性转录反应以协调低氧组织中的氧供应和代谢活性,此过程涉及血管生成因子和血管活性物质等细胞因子的上调。调节免疫应答和细胞凋亡的核因子κB（nuclear factor-κB,NF-κB）具有与HIF-1α类似的功能,即在低氧条件下通过改变氧依赖性羟脯氨酸化酶活性来调节缺氧状态。此文讨论了在多种炎症性疾病中HIF-1α与NF-κB激活通路之间的相互作用,以及HIF-1α和NF-κB通路作为炎症性疾病治疗靶点的潜力。     

含达雷妥尤单抗联合方案挽救治疗早期前体T淋巴母细胞白血病一例

患者,男,33岁,因"淋巴结肿大1个月"于2019年10月就诊于我院。血常规示:WBC 1.25×109/L,HGB 76 g/L,PLT 44×109/L;骨髓涂片:原始幼稚淋巴细胞93.5%;骨髓免疫分型:异常细胞占非红细胞的94.1%,主要表达cCD3、CD5、CD7、CD34、CD38,部分表达CD13、CD33,不表达CD2、mCD3、CD4、CD8、CD79a、cMPO,免疫表型符合异常早期前体T淋巴母细胞白血病(ETP-ALL);染色体核型:46,XY,-7,+der(1;19)(q10;q10)[2]/45,X,-7,+der(1;19)(q10;q10),-Y[2]/46,XY[10];骨髓RNA测序:未见融合基因,FLT3-ITD突变阳性(等位基因比1.5);腰椎穿刺结果正常。综合上述结果,确诊为ETP-ALL。先后接受1个疗程VDCD(长春地辛+柔红霉素+环磷酰胺+地塞米松)方案和1个疗程CAG(阿柔比星+阿糖胞苷+粒细胞集落刺激因子)方案诱导化疗,均未达到完全缓解。     

急性髓系白血病患者诱导缓解治疗期症状群的纵向研究

目的 探讨急性髓系白血病（acute myeloid leukemia,AML）患者诱导缓解治疗（induction therapy,IT）期症状群的变化情况。方法 2018年1月—2020年6月,便利选取山东省某三级甲等医院血液内科首次确诊为AML并接受IT的130例患者,运用中文版记忆症状评估量表在IT开始前1 d（T1）、IT结束当天（T2）、IT结束后第7天（T3）对其进行评估,运用因子分析确立症状群的组成。 结果 T1存在4个症状群,为心理症状群、营养症状群、神经症状群和疼痛-出汗症状群。T2存在3个症状群,为胃肠道症状群、疲乏症状群和治疗相关症状群。T3存在4个症状群,为心理症状群、胃肠道症状群、疲乏症状群和形象改变症状群。其中心理症状群在T1和T3存在,疲乏症状群和胃肠道症状群在T2和T3持续存在。结论 AML患者在IT期经历的症状群呈动态变化。IT前的心理症状群、IT中的胃肠道症状群、IT结束后的疲乏症状群可作为优先干预的症状群。     

高压氧辅助治疗对乳腺癌术后皮瓣愈合及血管内皮生长因子和缺氧诱导因子的影响

目的探究高压氧辅助治疗对乳腺癌手术后皮瓣愈合及血管内皮生长因子(VEGF)和缺氧诱导因子-1α(HIF-1α)的影响。方法选取长治医学院附属和平医院乳腺科2017年1月至2019年6月收治的132例乳腺癌患者作为研究对象,按随机数字表法分为对照组和观察组(每组66例)。对照组采用乳腺癌改良根治术,观察组在对照组治疗基础上给予高压氧辅助治疗。比较2组患者术后切口皮瓣愈合情况,包括愈合时间、引流液情况及疼痛评分。治疗前后,测定2组患者血清VEGF和HIF-1α水平,同时随访观察术后并发症情况。结果观察组患者采用高压氧治疗后皮瓣愈合时间为(10.43±0.96)d,较对照组的(13.81±1.15)d明显缩短;液体引流量、术后1 d及3 d的视觉模拟评分(VAS)均优于对照组,差异有统计学意义(P<0.05)。观察组血清VEGF水平较治疗前明显升高,HIF-1α较治疗前明显下降,且变化幅度显著大于对照组,差异有统计学意义(P<0.05)。观察组术后并发症发生率为3.03%,低于对照组的10.61%,但差异无统计学意义。结论高压氧辅助治疗对乳腺癌改良根治术患者临床疗效显著,其通过降低HIF-1α水平,增加VEGF含量而加快皮瓣愈合,缓解患者疼痛,改善预后。     

2021-09期目录

Objective To investigate the predictive effect of thyroglobulin antibody (TgAb) level after operation and the trend of TgAb change after 131I treatment on the curative effect of 131I treatment in patients with differentiated thyroid carcinoma (DTC). Methods A total of 95 patients with DTC who were positive for TgAb and who underwent total thyroidectomy and 131I treatment in the Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology from December 2016 to May 2018 were retrospectively analyzed. The patients included 16 males and 79 females, aged 11?63 (37.74±11.27) years old. 131I treatment was administered 2–6 months after surgery. Based on the response to therapy assessment system of DTC in the American Thyroid Association Management Guidelines and according to the images, the curative effect was divided into three groups, namely, structural excellent response group (A group, 54 cases), structural incomplete response group (B group, 19 cases), and structural indeterminate response group (C group, 22 cases). The following parameters were observed among the three groups: TgAb level before 131I treatment; percentage change at 1.5 months, 3–6 months, and 6–12 months; and rate of change of TgAb. The factors that might affect the curative effect were analyzed. Receiver operating characteristic (ROC) curves were drawn with the following: the TgAb level before 131I treatment; percentage change of TgAb at 1.5 months after treatment; and percentage change of TgAb at 3–6 months after treatment. The best critical value for predicting therapeutic effect was determined, and the diagnostic efficiency was calculated. The measurement data were compared through variance analysis or Kruskal-Wallis rank sum test. Chi-square test or Fisher's exact text were used to compare the count data among the groups. The multivariate Logistic regression analysis was used to analyze the factors that may affect the curative effect. Results The univariate regression analysis results showed that the mean age (F=3.48, P=0.03), lymph node metastasis rate (χ2=10.28, P<0.01), TgAb level before 131I treatment (χ2=16.03, P<0.01), 131I dose (Fisher's exact text, P=0.002), percentage changeand and rate of change of TgAb (except percentage change at 6?12 months) at 1.5 months, 3?6 months, and 6?12 months were significantly different among the three groups (χ2=8.55–22.79, all P<0.05). The multivariate Logistic regression analysis result showed that TgAb levels before 131I treatment were significantly different among the three groups (β=?0.006, OR=0.994; P<0.01), percentage change of TgAb at 1.5 months (β=0.327, OR=1.387; P=0.046), and percentage change of TgAb at 3?6 months (β=2.521, OR=12.439; P=0.041) had statistical significance. The optimal cut-off value of TgAb level on ROC curve was 201.4 U/mL with a sensitivity of 74.1% and specificity of 68.3%. The area under ROC curve (AUC) was 0.740. The optimal cut-off values of the percentage change of TgAb in 1.5 months and for 3–6 months after treatment were 9.7% and 19.2%; the sensitivities were 72.2% and 61.0%; the specificities were 87.0% and 58.5%; and the AUCs were 0.660 and 0.752, respectively. Conclusions Postoperative TgAb level enabled the prediction of the therapeutic effect of 131I. Patients with lower TgAb level showed better therapeutic effect. The decrease of TgAb after treatment was more significant than before treatment, suggesting that the 131I therapeutic effect was satisfactory.