Morphological and serum hyaluronic acid, laminin and type Ⅳ collagen changes in dimethylnitrosamine-induced hepatic fibrosis of rats

AIM: To study the morphological and serum hyaluronic acid (HA), laminin (LN), and type Ⅳ collagen changes in hepatic fibrosis of rats induced by dimethylnitrosamine (DMN).METHODS: The rat model of liver fibrosis was induced by DMN. Serum HA, type Ⅳ collagen, and LN were measured by ELISA. The liver/weight index and morphological changes were examined under electron microscope on d 7, 14, 21, and 28 by immunohistochemical alpha smooth muscle actin α-SMA staining as well as Sirius-red and HE staining.RESUJLTS: The levels of serum HA, type Ⅳ collagen and LN significantly increased from d 7 to d 28 (P = 0.043).The liver/weight index increased on d 7 and decreased on d 28. In the model group, the rat liver stained with HE and Sirius-red showed evident hemorrhage and necrosis in the central vein of hepatic 10 lobules on d 7. Thin fibrotic septa were formed joining central areas of the liver on d 14. The number of α-SMA positive cells was markedly increased in the model group. Transitional hepatic stellate cells were observed under electron microscope.All rats in the model group showed micronodular fibrosis in the hepatic parenchyma and a network of α-SMA positive cells. Typical myofibroblasts were embedded in the core of a fibrous septum. Compared to the control group, the area-density percentage of collagen fibrosis and pathologic grading were significantly different in the model group (P＜0.05) on different d (7, 14, and 28). The area-density percentage of collagen fibrosis in hepatic tissue had a positive correlation with the levels of serum HA, LN, and type Ⅳ collagen.CONCLUSION: The morphological and serum HA, type Ⅳ collagen, and LN are changed in DMN-induced liver fibrosis in rats.     

Caveolin-1mRNA及蛋白在食管鳞状细胞癌中的表达及其与Cyclin-D1、P16的相关性研究

目的研究Caveolin-1 m RNA及蛋白在食管癌及癌旁正常食管黏膜中的表达及其意义,进一步探讨Caveolin-1与食管癌组织中细胞周期素-D1(Cyclin-D1)、P16及临床病理学指标的相关性。方法收集食管鳞癌及对应癌旁组织标本90例,分别采用RT-PCR、免疫组化方法检测Caveolin-1 m RNA及蛋白的表达情况,进一步分析Caveolin-1与食管癌组织中Cyclin-D1、P16及临床病理学指标的相关性。结果 Caveolin-1 m RNA及蛋白在食管癌中的表达均高于食管癌旁组织中的表达(P<0.05),且Caveolin-1 m RNA的表达与Cyclin-D1和淋巴结转移有关。结论 Caveolin-1在食管癌中高表达,可能与食管鳞癌的发生、发展以及浸润转移有关。     

The rare IRF2BP2-RARA fusion in acute promyelocytic leukemia

Annals of Hematology -     

血清CTRP13和UACR与不稳定型心绞痛合并2型糖尿病的相关性研究

目的 探讨血清补体C1q/肿瘤坏死因子相关蛋白13(CTRP13)及尿微量白蛋白/肌酐比值(UACR)与不稳定型心绞痛(UAP)合并2型糖尿病(T2DM)的关系。方法 选取2019年10月—2020年10月在承德医学院附属医院心内科和内分泌科住院的150例患者,根据是否诊断UAP和T2DM分为UAP+T2DM组(n＝50)、UAP组(n＝50)和T2DM组(n＝50),选取同期体检的健康人为对照组(n＝50)。分别测定四组患者的血清CTRP13浓度和晨尿UACR水平。比较各组间的一般资料及CTRP13和UACR水平的差异,分析UAP+T2DM组CTRP13和UACR与各指标的相关性;使用倒数f[CTRP13(ng/L)]＝1/[CTRP13(ng/L)]转换CTRP13(ng/L),用ROC曲线分析f(CTRP13)和UACR单独检测及联合检测对UAP+T2DM的预测效能。结果 血清CTRP13水平在UAP+T2DM组最低,T2DM组和UAP组次之,对照组水平最高(P＜0.05);UACR水平在UAP+T2DM组最高,UAP组和T2DM组次之,对照组最低(P＜0.05)。UAP+T2DM组Gensini评分高于UAP组(P＜0.05)。相关性分析显示,在UAP+T2DM组,血清CTRP13水平与空腹血糖(FPG)、高敏C反应蛋白(hs-CRP)及Gensini评分呈负相关,与高密度脂蛋白胆固醇(HDLC)呈正相关(均P＜0.05);UACR与腰围、低密度脂蛋白胆固醇(LDLC)、hs-CRP及Gensini评分呈正相关(均P＜0.05)。ROC曲线显示,f(CTRP13)、UACR单独检测及联合检测预测UAP合并T2DM的曲线下面积(AUC)分别为0.820(95%CI:0.759～0.882)、0.846(95%CI:0.786～0.905)和0.876(95%CI:0.820～0.931),其灵敏度分别为88%、82%和86%,其特异度分别为64%、80%和77.3%。结论 CTRP13和UACR不仅可作为UAP合并T2DM患者临床诊断的辅助指标,还可用于评估冠状动脉病变的严重程度;二者联合检测对UAP合并T2DM的诊断价值更高。     

冠心病患者小而密低密度脂蛋白胆固醇与血浆致动脉硬化指数的相关性

目的 探讨冠心病(CHD)患者小而密低密度脂蛋白胆固醇(sdLDLC)与血浆致动脉硬化指数(AIP)的关系。方法 回顾性收集本院2019年9月—2020年6月因胸痛、胸闷入院,疑似CHD行冠状动脉造影检查的525例患者为研究对象,根据冠状动脉造影结果分为CHD组(n＝422)和非CHD组(n＝103)。同时又按照AIP三分位数分为3组:AIP≤－0.056组(n＝176),－0.056＜AIP＜0.208组(n＝175),AIP≥0.208组(n＝174)。测定各血脂指标并计算AIP。比较CHD组和非CHD组的sdLDLC和AIP水平。分析AIP的影响因素和CHD的危险因素。结果 CHD组sdLDLC、AIP、低密度脂蛋白(LDL)亚型LDL3、LDL4显著高于非CHD组,LDL1、高密度脂蛋白胆固醇显著低于非CHD组(P＜0.05)。随着AIP增加,sdLDLC、LDL4显著升高,LDL1、LDL2显著降低(P＜0.001)。多元线性回归分析显示,sdLDLC、高血压史是AIP的独立影响因素(P＜0.05)。多因素Logistic回归分析显示,sdLDLC、AIP是CHD的独立危险因素(P＜0.05)。结论 CHD患者sdLDLC与AIP呈显著正相关,sdLDLC、AIP是CHD发生的独立危险因素。     

聚焦解决模式对青年乳腺癌患者术后焦虑抑郁情绪的影响

目的深入了解聚焦解决模式对青年乳腺癌患者术后焦虑抑郁情绪的影响,并进一步探索其原因,为聚焦解决模式干预内容的完善提供依据。方法将青年乳腺癌患者150例随机分为观察组和对照组各75例,对照组给予一般的健康教育和指导,观察组在此基础上依据聚焦解决模式5个步骤进行健康教育。采用焦虑自评量表(SAS)、抑郁自评量表(SDS)进行评定;根据评定结果,对观察组中仍伴有焦虑、抑郁的患者进行深入访谈,运用Colaizzi资料分析原则对资料进行整理分析,提炼主题。结果干预前两组SAS、SDS状况比较,差异无统计学意义(P>0.05),干预后两组SAS、SDS状况比较,观察组明显优于对照组,差异有统计学意义(P<0.05);对10例经聚焦解决模式干预后仍有负性情绪的患者深入访谈,得出患者产生负性情绪的因素:对疾病的不确定感,自我概念的改变,社会适应能力的改变。结论对青年乳腺癌患者进行聚焦解决模式干预,应根据患者负性情绪状况随时调整干预内容和干预策略,并针对患者的负性情绪给予有效的情感支持。     

Survivin与VEGF在肺癌中的表达及意义

目的探讨Survivin及血管内皮生长因子(VEGF)在肺癌组织中的表达及其与患者预后的关系方法应用免疫组化法检测化疗组和非化疗组肺癌患者Survivin、VEGF的表达水平,比较Survivin、VEGF的表达与生存宰的关系。结果Survivin和VEOF在挪癌组织中的阳性表达率分别为74．3％和70．0%,二者呈正相关(r=0．562,P<0．01);两组Survivin和VEOF阴性表达者生存期明显长于阳性表达者。结论Survivin VEGF在肺癌中的表达呈正相关;二者联合检测是患者化疗疗效、预后判断的重要指标。     

人早孕绒毛细胞滋养层细胞培养方法的改良

目的 探索一种简便高纯度的早孕滋养细胞的体外培养方法。方法 采用完整早孕绒毛通过胰蛋白酶联合胶原酶消化法分离,Percoll梯度分离法提纯体外培养,应用光镜HE染色和免疫细胞化学法检测细胞纯度。 结果 CK-7表达阳性细胞数可以达到90%以上。结论 完整绒毛消化和Percoll纯化联合可在短期内获得高纯度、高产量的滋养细胞以供后期试验,方法更加简便。     

Clinical study of apatinib plus temozolomide for the treatment of recurrent high-grade gliomas

ObjectivesRecurrent high-grade glioma, a malignant tumor of the brain or spinal cord associated with poor prognosis with a median survival of <6 months. Recurrent high-grade glioma does not have standard treatment even if some strategies have some effect in recurrent gliomas. Apatinib, as a tyrosine kinase inhibitor shown to be effective in treating the lung and gastric cancer. The present study investigated the efficacy and safety of apatinib in combination with dose-dense regimens of temozolomide for treating recurrent glioma.Patients and methodsEighteen patients with recurrent high-grade glioma were enrolled and treated with apatinib (500 mg/day) and TMZ (50 mg/m²/day). Patients who achieved partial response or stable disease continued treatment. Administration of drug was terminated for patients with progressive disease, who could not tolerate toxicity, and who required discontinuation due to other medical conditions.ResultsFrom the 18 cases, only 17 were included in the evaluation of the curative effect of the drug and in that four showed partial responses, ten had stable disease, remaining three exhibited progressive disease. The disease control rate was 82.3% (14/17). Progression-free and overall survival was found to be 4 months and 9.1 months, respectively. Three patients became transiently capable of self-care (Karnofsky performance status >70). Cognition and quality of life improved after treatment and from the safety perspective, three most common adverse reactions included epilepsy (24.1%), hypertension (20.7%), and fatigue (17.2%).ConclusionApatinib and TMZ may represent an alternative treatment option for patients with recurrent high-gradeglioma, especially those with a low Karnofsky performance status. However, studies using a larger sample size are required to confirm these findings.     

ROS对糖尿病大鼠血脂代谢及肾脏组织中VEGF的影响

目的探讨地黄寡糖(ROS)对糖尿病大鼠血脂代谢及肾脏组织中血管内皮生长因子(VEGF)的影响。方法将40只SPF级大鼠按照随机数字表法分为健康组、DM组、ROS组及药物对照组,每组10只。DM组、ROS组及药物对照组大鼠均建立糖尿病模型。ROS组及药物对照组分别采用200 mg/(kg·d)的ROS及二甲双胍灌胃,剩余两组灌胃等体积生理盐水,治疗22 d。治疗结束后,检测血脂代谢指标、肾脏重量、肾脏病理组织切片、肾脏组织中VEGF阳性率及蛋白。结果与健康组比较,DM组、ROS组、药物对照组总胆固醇(TC)、三酰甘油(TG)升高,高密度脂蛋白胆固醇(HDL-C)降低,经药物干预后,ROS组、药物对照组TC、TG明显低于DM组,HDL-C明显高于DM组,且ROS组TG明显低于药物对照组,差异有统计学意义(P<0.05)。与健康组比较,ROS组、药物对照组大鼠肾脏重量及肾脏指数均明显增加,药物干预后,与DM组比较,ROS组及药物对照组肾脏重量及肾脏指数明显降低,差异有统计学意义(P<0.05)。健康组大鼠肾脏结构完整,肾小球基质分布清晰,未见增生及肥大;DM组大鼠肾小球基质模糊,毛细血管增厚,炎性反应浸润严重,肾小球出现肥大;经药物干预的ROS组及药物对照组上述病理情况均好转,症状减轻。健康组、DM组、ROS组及药物对照组大鼠肾脏组织中VEGF蛋白相对表达量分别为1.00±0.15、3.03±0.33、1.45±0.27、1.50±0.30,组间比较,差异有统计学意义(F=109.100,P<0.001)。DM组VEGF蛋白相对表达量明显高于健康组,差异有统计学意义(t=17.880,P<0.001)。ROS组及药物对照组VEGF蛋白相对表达量明显低于DM组,差异有统计学意义(t=11.870、10.990,P<0.001)。结论灌胃ROS能够改善糖尿病大鼠血脂代谢指标,降低肾脏重量,这与抑制VEGF表达具有相关性。