同型半胱氨酸及高敏C反应蛋白与冠状动脉病变程度的关系

目的:探讨血浆同型半胱氨酸(homocysteine,Hcy)及血清高敏C反应蛋白(hypersensitive C-reactive protein,hs-CRP)水平与冠状动脉粥样硬化性心脏病(coronary heart disease,CHD)病人冠状动脉病变程度的关系.方法:选取疑似或已确诊CHD并接受冠状动脉造影的病人128例,根据冠状动脉造影结果分为单支病变组(33例)、双支病变组(32例)、三支病变组(29例)及非CHD组(34例);检测并比较各组Hcy及hs-CRP水平.结果:随着冠状动脉病变支数增加,CHD病人的Hcy和hs-CRP水平也随之升高(P<0.01);三支冠状动脉病变病人高Hcy的比例高于非CHD组和单支病变组(P<0.05);CHD病人Hcy与hs-CRP呈正相关关系(P<0.05).结论:CHD病人随冠状动脉病变支数增加,Hcy和hs-CRP水平亦随之增高,同时两者之间具有相关性;Hcy加重冠状动脉病变的机制之一可能是炎症反应.     

大鼠清醒无麻醉状态下的侧脑室给药方法的研究

目的：探讨大鼠清醒无麻醉状态下的侧脑室给药方法。方法：选取雌性SD大鼠15只,使用自制脑室置管系统对大鼠行侧脑室置管,置管术后大鼠自由恢复1周,每日对大鼠进行驯养5~10 min。术后8~10 d在清醒无麻醉状态下每日向侧脑室注射生理盐水10 μL。术后11 d侧脑室注入10 μL美蓝后麻醉大鼠,全部开胸经升主动脉插管,行甲醛心脏灌注后处死大鼠,待甲醛固定灌注完毕后取脑组织。结果：2%的美蓝溶液注入后脑室的全部内壁均染色,苏木精-伊红染色法 (HE染色法)染色后脑内未见明显的出血或炎症,2只大鼠给药前, 置入侧脑室的不锈钢导管未见脑脊液溢出。结论：清醒无麻醉状态下的大鼠侧脑室给药方法简单可行,成功率高。     

温肾益脾法配合推拿治疗小儿遗尿临床研究

目的:探讨温肾益脾法配合推拿治疗小儿脾气亏虚型遗尿的临床疗效与安全性。方法:选取脾气亏虚型遗尿症患儿74例,按随机数字表法分别对照组和研究组,每组37例,对照组予以盐酸甲氯芬酯胶囊口服,研究组在西医治疗基础上予以温肾益脾法配合推拿治疗,15 d为1个疗程,测定治疗后两组患儿血管升压素(antidiuretichormone,ADH)水平,记录临床症状,对比临床疗效、睡眠觉醒状况及不良反应发生情况。结果:与治疗前及对照组治疗后比较,两组患儿治疗后血浆ADH3降低,血浆ADH1升高,尿床、神疲乏力、食欲不振、便溏、自汗等中医证候积分降低,遗尿次数、残余尿量降低,膀胱容量升高,差异有统计学意义(P0.05);研究组睡眠觉醒水平优于对照组(P0.05);对照组有效率为70.27%,研究组有效率为91.89%,两组比较,差异有统计学意义(P0.05);两组均无明显不良反应。结论:温肾益脾法配合推拿治疗小儿脾气亏虚型遗尿疗效确切,可改善临床症状,提高夜间ADH水平,安全性好。     

Key Symptoms Selection for Two Major Syndromes Diagnosis of Chinese Medicine in Chronic Hepatitis B

Objective

To identify key symptoms of two major syndromes in chronic hepatitis B (CHB), which can be the clinical evidence for Chinese medicine (CM) doctors to make decisions.

Methods

Standardization scales on diagnosis for CHB in CM were designed including physical symptoms, tongue and pulse appearance. The total of 695 CHB cases with dampness-heat (DH) syndrome or Pi (Spleen) deficiency (SD) syndrome were collected for feature selection and modeling, another 275 CHB patients were collected in different locations for validation. Key symptoms were selected based on modified information gain (IG), and 5 classifiers were applied to assist with models training and validation. Classification accuracy and area under receiver operating characteristic curves (AUC) were evaluated.

Results

(1) Thirteen DH syndrome key symptoms and 13 SD syndrome key symptoms were selected from original 125 symptoms; (2) The key symptoms could achieve similar or better diagnostic accuracy than the original total symptoms; (3) In the validation phase, the key symptoms could identify syndromes effectively, especially in DH syndrome, which average prediction accuracy on 5 classifiers could achieve 0.864 with the average AUC 0.772.

Conclusion

The selected key symptoms could be simple DH and SD syndromes diagnostic elements applied in clinical directly. (Registration N0.: ChiCTR-DCC-10000759)

     

术前MRI判断垂体大腺瘤侵袭海绵窦的研究

目的：探讨术前M RI多种扫描征象在预测垂体大腺瘤是否侵袭海绵窦的实用价值。方法垂体大腺瘤患者212例,手术前均行M RI多种序列扫描,分别观察以下4个征象：（1）冠状位T2加权像上表现为低信号的海绵窦内侧壁的完整性;（2）冠状位T1加权像上海绵窦内颈内动脉的环状增强影;（3）肿瘤是否突破颈内动脉外切线;（4）肿瘤是否长入海绵窦内颈内动脉下间隙。另外,测量肿瘤包绕颈内动脉所成的角度,并以ROC曲线进行分析。手术中神经内镜直视下观察海绵窦内侧壁是否完整,以确定是否具有侵袭性。结果212例垂体大腺瘤,术中证实侵袭海绵窦36例,4个征象综合起来判断时敏感性和特异性分别为91．7％和97．2％,阳性预测值达92．8％。当颈内动脉被包绕达135°以上时,海绵窦被侵袭的可能性大,敏感性和特异性分别是88．9％和84．1％。结论综合应用多种M RI扫描征象对于预测垂体大腺瘤是否侵袭海绵窦具有很高的实用价值;术前准确判断垂体大腺瘤是否侵袭海绵窦将有助于优化治疗计划。     

PD-L1疫苗中引入不同免疫原性氨基酸对T细胞亚群分化的影响

为了比较内源性的3-硝基酪氨酸与非天然的4-硝基苯丙氨酸在PD-L1疫苗中的引入对T细胞亚群分化的影响,利用遗传密码扩充技术,将这两种免疫原性氨基酸分别引入到PD-L1疫苗的相同位点,获得具有3-硝基酪氨酸以及4-硝基苯丙氨酸的两种PD-L1突变体。用这两种突变体免疫小鼠,分析对小鼠脾脏T细胞亚群分化的影响。流式细胞术检测结果显示,4-硝基苯丙氨酸在PD-L1疫苗中的引入可促进Th1细胞的极化,同时降低Treg细胞的比例,3-硝基酪氨酸的引入对Th1细胞的极化无影响,同时能显著提高Treg和Th17细胞的比例。二者在PD-L1疫苗中的引入均能促进脾脏CD8⁺T细胞的应答,其中含有4-硝基苯丙氨酸的PD-L1突变体应答效果更强。实验结果表明,与内源性的3-硝基酪氨酸在PD-L1疫苗中的引入相比,非天然的4-硝基苯丙氨酸更适合用于肿瘤疫苗的设计。     

静脉溶栓后神经功能恶化的治疗观察

目的 探讨抗凝和抗血小板聚集治疗脑梗死静脉溶栓后神经功能恶化的疗效。方法 收集自2015年1月至2019年12月在石家庄市第一医院神经内科经静脉溶栓后神经功能恶化的62例急性脑梗死患者,行头颅CT除外出血转化后随机分为治疗组和对照组,各31例,治疗组采用单抗加抗凝,即阿加曲班联合氯吡格雷治疗,对照组采用双抗,即阿司匹林联合氯吡格雷治疗,比较两组治疗静脉溶栓后神经功能恶化的临床疗效及不良反应情况。结果 治疗14天后治疗组NIHSS评分较对照组偏低（P<0.05）,治疗组mRS评分亦低于对照组（P<0.05）。治疗组发生消化道出血1例,恶心、呕吐1例,对照组发生消化道出血1例,恶心、呕吐2例,对照组和治疗组不良反应的差异不显著。结论 采用阿加曲班联合氯吡格雷治疗,减轻静脉溶栓后神经功能恶化症状,减轻残疾程度,疗效显著,且不会出现严重不良反应,安全可靠。     

中期因子转录物及其蛋白在肝细胞癌中的定位与表达研究

目的了解中期因子 (Midkine,MK)转录物及其蛋白产物在肝细胞癌 (hepatocellularcarci noma ,HCC)中的定位情况与表达特点。方法应用原位杂交、免疫组织化学染色等方法对 33例人HCC组织、10例良性肝肿瘤组织及其配对瘤旁肝组织进行了MKmRNA及蛋白的定位与表达研究。结果免疫组织化学结果与原位杂交结果具有一致性 (χ2 =0 5 0 0 ,P >0 0 5 )。MK在HCC组织中呈高表达。MKmRNA及蛋白的阳性信号聚集于HCC细胞质。在HCC细胞外组织中亦有MK表达 ,尤以血管密集处明显。HCCMK表达率与肝癌组织学类型、分级等临床病理学特点无相关性。结论HCC在mRNA和蛋白水平上表达MK增加 ,并可能与促进HCC血管生成有关     

长链非编码RNA与肿瘤

已经有越来越多的证据表明基因组的非编码序列的转录对于生命活动具有重要意义.相对于蛋白编码序列以及各种小分子RNA,长链非编码RNA(IncRNA)的研究还仅仅处于起步阶段,其功能与调控机制仍有待进一步研究.本文对目前关于IncRNA与肿瘤关系的研究进展进行综述,认为IncRNA可能为肿瘤诊断和治疗提供新依据和靶点.     

大黄甘草汤联合间断短时静脉-静脉血液滤过对重症急性胰腺炎患者细胞因子的影响

Objective To approach the treatment effect and mechanism of action of intermittent short time veno-venuous hemofiltration(ISVVH)and Rheum Glycyrrhiza Decoction in patients with severe acute pancreatitis(SAP).Methods One hundred and three SAP patients were randomly divided into 3 groups.Rheum Glyeyrrhiza uraleusis fisch Decoction group(A,n=25),ISVVH group(B,n=35)and ISVVH CO-Rheum Glyeyrrhiza uralensis fisch decoction group(C,n=43).A,B and C groups were all treated with conventional therapy.However.the patients in group A were added Rheum Glycyrrhiza uralensis fisch Decoction,the patients in group B added ISVVH while group C were raised ISVVH co-Rheum Glycyrrhiza uralensis fiach Decoction.Finally,we observed three groups of patients with heart rate(HR),respiration(R),blood pressure(BP),liver and kidney function;oxygenation index(PaO2/FiO2),oxygen saturation(SaO2);blood routine,plasma electrolytes,glucose and C-reactive protein;parallel APACHE Ⅱ score;measure level of TNF-α,IL-10 in patients blood serum when they were admitted to hospital,24,48,96 h after treatment respectively.Results After treated 24,48,96 h,C group compared to B group,B group compared to A group,there were significantly improvements in APACHE Ⅱ score(P < 0.05);TNF-alevel decreased(P < 0.05);IL-10 level increased(P < 0.05);three groups after treatment of acute lung injury, thoracic/abdominal effusion,intestinal paralysis/obstruction,sepsis and other complications improved significantly(P < 0.05).Conclusions ISVVH and glycyrrhiza decoction can regulate the liver and renal dysfunctions that followed SAP,raise physical conditions,improve the complications of patients with SAP.