重组人白细胞介素10单克隆抗体对角朊细胞增殖及产生细胞因子的影响

目的 研究重组人白细胞介素10单克隆抗体对无血清培养的角朊细胞增殖、产生细胞因子的影响。方法 用四甲基偶氮唑蓝比色法(MTT)测定对细胞增殖的影响;用小鼠胸腺细胞增殖法检测IL-1;ELISA法检测IL-6、IL-8。结果 抗重组人白细胞介素10单克隆抗体促进角朊细胞增殖与IL-1、IL-6及IL-8的分泌,并呈剂量依赖关系。结论 重组人白细胞介素10单克隆抗体促进角朊细胞增殖与细胞因子分泌。     

十二烷基苯磺酸钠对Wistar大鼠肝损害及血清酶逆向变化的影响

目的: 探讨十二烷基苯磺酸钠(SDS)对Wistar大鼠肝脏的影响. 方法: 在饮水中加入SDS,使其终浓度分别为1000 g/L, 100 g/L, 10 g/L, 0 g/L,持续让动物自由饮用7 wk. 实验结束后,处死动物,测定血清谷丙转氨酶(ALT)、谷草转氨酶(AST)、乳酸脱氢酶(LDH)、碱性磷酸酶(ALP)和γ-谷氨酰转肽酶活性(γ-GT),并作肝组织病理形态学检查. 结果: 100 g/L SDS剂量组的ALT, AST, γ-GT与LDH活性升高(与对照组比较,P＜0.05),而1000 g/L SDS剂量组的酶活性减低(与100 g/L剂量组比较,P＜0.01);各实验组的ALP活性与对照组比较,差异无统计学意义(P＞0.05). 肝组织病理检查显示,10 g/L SDS剂量组肝组织病理形态学变化与对照组相似,100 g/L SDS剂量组肝细胞轻度水肿、脂肪变性,1000 g/L SDS剂量组肝细胞中度水肿、脂肪变性,有散在灶性坏死. 结论: 长期饮用含SDS的水对肝脏会有一定的损害,并产生血清酶的逆向变化现象.     

染料木素磺酸钠对慢性肝损伤的保护及T淋巴细胞亚群的调节作用

目的：观察染料木素磺酸钠（genistein sodium sulfonate,GSS）对小鼠慢性肝损伤的保护作用及其对外周血T淋巴细胞亚群的调节作用.方法：取健康雄性昆明种小鼠48只,随机分成5组,分别为正常组、模型组、0.1 mg/kg GSS组、0.3 mg/kg GSS组、阳性药物对照组（2.5 mg/kg联苯双酯）.采用腹腔注射10% CCl4,体积为0.1 mL/10 g,持续6周,制备小鼠慢性肝损伤动物模型.各组分别灌胃给予不同剂量的GSS、阳性药物或生理盐水,连续6周.测定小鼠血清天冬氨酸转氨酶（AST）、丙氨酸转氨酶（ALT）活性,并计算AST/ALT比值;HE染色,观察肝组织形态;流式细胞术检测CD4＋及CD8＋ T淋巴细胞亚型,并计算CD4＋/CD8＋ T淋巴细胞比值.结果：（1）模型组小鼠肝组织可见大量肝细胞呈气球样变、脂肪变性、胞质凝聚、或肝细胞变性坏死;GSS实验组肝组织未见明显的脂肪变性或炎性病灶.（2）模型组小鼠血清AST及ALT含量升高,GSS实验组小鼠血清AST、ALT含量明显低于模型组.（3）模型组小鼠CD3＋细胞比例升高,CD8＋ T细胞比例降低,CD4和CD8双阴性T淋巴细胞比例升高,CD4＋/CD8＋ T淋巴细胞比值升高;GSS治疗后,CD3＋细胞比例降低,CD8＋ T 淋巴细胞比例升高,CD4＋/CD8＋T淋巴细胞比值降低,CD4和CD8双阴性T淋巴细胞比例降低.结论：GSS对CCl4诱导小鼠慢性肝损伤有保护作用,其机制可能通过调节T淋巴细胞亚群,影响免疫功能实现的.     

The Antidotal Effects of High-dosage γ-Aminobutyric Acid on Acute Tetramine Poisoning as Compared with Sodium Dimercaptopropane Sulfonate

To investigate the therapeutic effect of nigh-dosage γ-aminobutyric acid （GABA） on acute tetramine （TET） poisoning, 50 Kunming mice were divided into 5 groups at random and the antidotal effects of GABA or sodium dimercaptopropane sulfonate （Na-DMPS） on poisoned mice in different groups were observed in order to compare the therapeutic effects of nigh-dosage GABA with those of Na-DMPS. Slices of brain tissue of the poisoned mice were made to examine pathological changes of cells. The survival analysis was employed. Our results showed that both high-dosage GABA and Na-DMPS could obviously prolong the survival time, delay onset of convulsion and muscular twitch, and ameliorate the symptoms after acute tetramine poisoning in the mice. Better effects could be achieved with earlier use of high dosage GABA or Na-DMPS. There was no significant difference in prolonging the survival time between high-dose GABA and Na-DMPS used immediately after poisioning. It is concluded that high-dosage GABA can effectively antagonize acute toxicity of terarnine in mice. And it is suggested that nigh-dosage GABA may be used as an excellent antidote for acute TET poisoning in clinical practice. The indications and correct dosage for clinical use awaits to be further studied.     

TritonX-100对SDS处理后光系统I颗粒耗氧速率的影响

目的研究TritonX-100对SDS处理后光系统I颗粒耗氧速率的影响。方法采用Clark型氧电极测定经SDS和Tri-tonX-100处理的光系统I颗粒的耗氧速率。结果光系统I颗粒的相对耗氧速率与SDS浓度常用对数呈线性关系,SDS处理后光系统I颗粒的耗氧速率明显降低,而TritonX-100对经SDS处理后光系统I颗粒降低的耗氧速率具有恢复作用。结论TritonX-100对SDS处理后光系统I颗粒的耗氧活性具有恢复作用。     

硬脂酸镁与十二烷基硫酸钠连用对颗粒流动性及溶出的影响

目的 探究硬脂酸镁与十二烷基硫酸钠连用对颗粒流动性以及溶出的影响。方法 设计四组硬脂酸镁与十二烷基硫酸钠不同比例的实验,考察颗粒的流动性以及片剂溶出度,筛选出最优的硬脂酸镁与十二烷基硫酸钠用量。结果 根据流动性、崩解时限、脆碎度、溶出度等因素综合考虑,硬脂酸镁与十二烷基硫酸钠连用,效果明显好于单用硬脂酸镁或单用十二烷基硫酸钠。使用最优处方,进行3批样品制备,考察样品的颗粒流动性、片剂的崩解时限、溶出度、含量、有关物质。同时考察样品的稳定性。结论 经过多批试验证明,硬脂酸镁与十二烷基硫酸钠连用,颗粒流动性及溶出度明显好于单用硬脂酸镁或单用十二烷基硫酸钠,且重现性及稳定性均较好。     

Protective effect and mechanism of sodium tanshinone II A sulfonate on microcirculatory disturbance of small intestine in rats with sepsis

To explore the protective effect of sodium tanshinone ⅡA sulfonate(STS) on microcirculatory disturbance of small intestine in rats with sepsis,and the possible mechanism,a rat model of sepsis was induced by cecal ligation and puncture(CLP).Rats were randomly divided into 3 groups:sham operated group(S),sepsis group(CLP) and STS treatment group(STS).STS(1 mg/kg) was slowly injected through the right external jugular vein after CLP.The histopathologic changes in the intestinal tissue and changes of mesenteric microcirculation were observed.The levels of tumor necrosis factor-α(TNF-α) in the intestinal tissue were determined by using enzyme-linked immunoabsorbent assay(ELISA).The expression of intercellular adhesion molecule-1(ICAM-1) in the intestinal tissue was detected by using immunohistochemisty and Western blot,that of nuclear factor κB(NF-κB) and tissue factor(TF) by using Western blot,and the levels of NF-κB mRNA expression by using RT-PCR respectively.The microcirculatory disturbance of the intestine was aggravated after CLP.The injury of the intestinal tissues was obviously aggravated in CLP group as compared with S group.The expression levels of NF-κB p65,ICAM-1,TF and TNF-α were upregulaed after CLP(P<0.01).STS post-treatment could ameliorate the microcirculatory disturbance,attenuate the injury of the intestinal tissues induced by CLP,and decrease the levels of NF-κB,ICAM-1,TF and TNF-α(P<0.01).It is suggested that STS can ameliorate the microcirculatory disturbance of the small intestine in rats with sepsis,and the mechanism may be associated with the inhibition of inflammatory responses and amelioration of coagulation abnormality.     

阿魏酸钠联合贝那普利治疗早期糖尿病肾病的疗效研究

目的 探讨阿魏酸钠(SF)联合贝那普利治疗早期糖尿病肾病(DN)的临床疗效.方法 将102例早期DN患者随机分成对照组(51例)和治疗组(51例),对照组在给予常规饮食、运动疗法和药物治疗的基础上给予贝那普利150 mg/次,口服,1次/d.治疗组在对照组治疗的基础上加用阿魏酸钠注射液0.3 g+生理盐水100 mL静脉滴注,1次/d,2 w为1个疗程,每个疗程间隔2 d,两组患者均治疗4个疗程.观察、记录治疗前后24 h尿微量白蛋白(UAER)、空腹血糖(FBG)、血尿素氮(BUN)、肌酐(Scr)、总胆固醇(TC)、甘油三酯(TG)和药物的不良反应.结果 对照组总有效率为76.47%,治疗组总有效率为90.20%,治疗组临床疗效优于对照组,差异有统计学意义(P<0.05).对照组治疗后UAER、Scr、TC较治疗前下降,治疗组治疗后UAER、FBG、BUN、Scr、TG低于治疗前,差异有统计学意义(P<0.05),且治疗组治疗后UAER、FBG、Scr、TG、TC低于对照组,差异有统计学意义(P<0.05).两组不良反应发生率差异无统计学意义(χ2=0.435,P=0.510).结论 阿魏酸钠注射液联合贝那普利治疗早期DN能显著降低尿微量白蛋白和血脂水平,改善微循环,减轻肾脏损害,延缓DN的发展,两药联合使用无明显不良反应.     

厄贝沙坦联合阿魏酸钠注射液治疗早期糖尿病肾病60例疗效观察

目的探讨厄贝沙坦联合阿魏酸钠注射液治疗早期糖尿病肾病的疗效。方法将60例早期糖尿病肾病患者随机分成对照组和治疗组,对照组在给予常规饮食、运动疗法和药物治疗基础上给予厄贝沙坦150mg/d口服,1次/d,治疗组在对照组基础上加用阿魏酸钠注射液0.3g＋生理盐水100ml静脉滴注,1次/d,疗程均为4周。观察、记录治疗前后24h尿微量白蛋白（u-ALB）、空腹血糖（FBG）、血尿素氮（BUN）、肌酐（Scr）、胆固醇（TC）、三酰甘油（TG）、血液流变学指标、平均动脉压（MAP）和药物的不良反应。结果两组治疗后u-ALB、MAP、FBG较治疗前明显下降,差异有统计学意义（P〈0.05）,治疗组治疗后u-ALB、TC、TG、纤维蛋白原、全血粘度、血浆粘度、血细胞比容、MAP下降较对照组明显,差异有统计学意义（P〈0.05）。两组治疗后FBG、BUN、Scr比较,差异无统计学意义。结论厄贝沙坦联合阿魏酸钠注射液治疗早期糖尿病肾病,能显著降低尿微量白蛋白、MAP、降血脂、降低血液粘滞度、改善微循环、减轻肾脏损害、延缓糖尿病肾病的发展。两药联合使用未见明显不良反应增加。     

丹参酮ⅡA磺酸钠注射液联合二丁酰环磷腺苷钙对不稳定型心绞痛患者心电图及血清PAPP-A、sCD40L水平的影响

目的 探究二丁酰环磷腺苷钙联合丹参酮ⅡA磺酸钠注射液对不稳定型心绞痛患者心电图及血清可溶性白细胞分化抗原配体(sCD40L)、妊娠相关蛋白A(PAPP-A)水平的影响。方法 选取2015年9月至2018年11月西安市临潼区中医院不稳定型心绞痛患者110例,依据随机数表法分组,各55例。两组均予以常规治疗,在此基础上,实验组予以二丁酰环磷腺苷钙＋丹参酮ⅡA磺酸钠注射液治疗。统计两组心电图疗效、临床疗效、不良反应,并对比治疗前后血清PAPP-A、sCD40L水平。结果 实验组临床总有效率为89.09%、心电图总有效率为90.91%,较对照组74.55%、76.36%高(P＜0.05);治疗前两组血清sCD40L、PAPP-A水平无明显差异(P＞0.05);治疗后实验组血清sCD40L、PAPP-A水平均较对照组低(P＜0.05);实验组不良反应率(20.00%)与对照组(12.73%)相比,无明显差异(P＞0.05)。结论 对不稳定型心绞痛患者联合采用二丁酰环磷腺苷钙、丹参酮ⅡA磺酸钠注射液治疗,可有效降低血清sCD40L、PAPP-A水平,提高心电图疗效,效果较为显著,且安全性较高。     

低剂量羟基脲和丁酸钠联合应用对人红系细胞珠蛋白基因表达的影响

目的 探讨低剂量羟基脲和丁酸钠联合应用对人红系细胞7种珠蛋白基因(ζ,α,ε,~Gγ,~Aγ,δ,β)Mrna表达的影响.方法 以二步液体培养法培养的人红系祖细胞为体外模型,用台盼蓝拒染活细胞计数观察HU、丁酸钠单独或联合用药后对细胞生长的抑制作用;用RT-PCR比较用药前后7种珠蛋白基因Mrna的变化.结果 低剂量联药组的细胞生长抑制率(26.44%)/b于羟基脲和丁酸钠常规剂量单药组的抑制率(28.56%和38.80%)(P,0.05),与未用药组(0.6534±0.092和0.5154±0.048)相比,联药组~Gγ-和~Aγ-Mrna的表达分别上调为1.203±0.018和0.9154±0.088,差异有显著性(P(0.05);与羟基脲(1.3054±0.016和0.9564±0.029)、丁酸钠(1.193±0.070和0.883±0.012)常规剂量单药组之间的差异无显著性(P>0.05),不同浓度药物对ζ,α,ε,δ和β-Mrna的诱导作用与各自未用药组之间的差异无显著性(p>0.05).结论 羟基脲和丁酸钠低剂量联合用药可上调红系细胞γ-珠蛋白基因的表达,尤其增加~Gγ-Mrna的转录,且减轻了对细胞生长的抑制,而对ζ,α,ε,δ和β-珠蛋白基因无明显诱导作用.

Abstract：

Objective To investigate the effects of combined use of low-dose hydroxyurea (HU) and sodium butyrate (NaB) on the expression of 7 globin genes (ζ,α,ε,~Gγ,~Aγ,δ, and β) in human erythroid progenitor cells. Methods Human erythroid progenitor cells were cultured using a two-step liquid culture system and treated with HU and NaB either alone or in combination. The inhibitory effects of the agents on the cell growth were monitored with trypan blue exclusion assay, and the changes in the mRNA of the 7 globin genes were detected using RT-PCR. Results Low-dose HU combined with NaB resulted in significantly lower inhibition rate of the erythroid progenitor cells than routine dose HU and NaB used alone (28.56% and 38.80%, respectively, P<0.05). Compared with untreated cells (0.653±0.092 and 0.515±0.048), HU combined with NaB significantly increased the expression of ~Gγ-and ~Aγ-mRNA (1.203±0.018 and 0.915±0.088, respectively, P<0.05), and HU and NaB used alone produced similar effects (1.305±0.016 and 0.956±0.029 for HU, and 1.193±0.070 and 0.883± 0.012 for NaB, P>0.05). HU and NaB, either used alone or in combination or at different doses, caused no significant changes in the other globin genes (ζ,α,ε,δ and β) (P>0.05). Conclusion Low-dose HU combined with NaB can up-regulate γ globin gene expression, especially ~Gγ-mRNA expression, to decrease the growth inhibition on human erythroid progenitor cells in vitro, but produces no significant effect on the expressions of ζ,α,ε,δ and β genes.