板蓝根提取物对机体免疫功能的影响

目的研究板蓝根提取物对小鼠机体免疫功能的影响。方法昆明种小鼠腹腔注射板蓝根提取液,检测T、B细胞免疫功能。结果与正常对照组相比,板蓝根组T、B淋巴细胞刺激指数都明显增高,有显著性差异(P<0.01)。结论板蓝根提取物具有很强的增强机体免疫功能的作用。     

板蓝根不同提取物抗甲型流感病毒的实验研究

目的:观察板蓝根不同提取物抗甲型流感病毒的作用.方法:采用用血凝滴度640以上的甲型流感病毒A/PR/8/34的尿囊液30μ1滴鼻感染小鼠,观察小鼠感染甲型流感病毒后发病及死亡情况.结果:板蓝根提取物2号1.0 g/kg剂量组和板蓝根提取物3号1.67g/kg剂量组可明显延长甲型流感病毒感染小鼠存活天数和降低死亡率,与病毒对照组比较具有显著性差异(P<0.05,P<0.01).板蓝根提取物1号0.67g/kg剂量组和板蓝根提取物4号1.12g/kg剂量组可显延长甲型流感病毒感染小鼠存活天数,与病毒对照组比较具有显著性差异(P<0.05).结论:板蓝根提取物2号组和板蓝根提取物3号组具有较好的抗甲型流感病毒的作用.     

板蓝根有效部位的抗病毒药效研究

目的?考察板蓝根不同提取部位单独使用和组合使用后抗甲型流感病毒A/PR8/34(H₁N₁)的活性。方法?采用体内抗甲型流感病毒A/PR8/34(H₁N₁)试验,比较板蓝根不同有效部位的抗甲型流感病毒作用。结果?板蓝根提取物Ⅰ组、Ⅲ组、Ⅴ组、Ⅵ组、Ⅶ组、Ⅷ组和Ⅸ组可明显延长甲型流感病毒(H₁N₁)感染小鼠后的存活天数,与模型组比较具有明显差异（P<0.05,P<0.01）。板蓝根提取物Ⅲ组、Ⅴ组、Ⅵ组和Ⅶ组对甲型流感病毒(H₁N₁)感染的小鼠的保护作用较强,与模型组比较具有显著性差异（P<0.05）。结论?板蓝根提取物Ⅰ组、Ⅲ组、Ⅴ组、Ⅵ组、Ⅶ组、Ⅷ组和Ⅸ组对甲型流感病毒(H₁N₁)感染的小鼠具有一定的保护作用,以板蓝根提取物Ⅲ组、Ⅴ组、Ⅵ组和Ⅶ组作用较佳。      

子宫切除患者机体有些生化指标变化的研究

目的探讨保留完整子宫功能的意义及子宫功能缺失对机体有些生化指标的影响。方法对168例年龄35～45岁的妇女及166例同等条件妇女因子宫肌瘤手术治疗和子宫动脉栓塞治疗(UAE)的患者,分别于手术前及手术后6、12、24个月测定外周血促卵泡生成素(FSH)、黄体生成素(LH)、雌二醇(E2)、孕酮(P)、睾酮(T)、甘油三酯(TG)、胆固醇总量(TC)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)、载脂蛋白A1(ApOA1)和载脂蛋白B(ApOB),并行OGTT实验(对OGTT两项异常认为糖耐量异常),骨密度测量,同时对性生活满意度,泌尿生殖道感染情况进行对比研究,对检测结果进行统计学处理,采用T检验及卡方检验,计算P值,P&lt;0.05为有显著性差异,P&lt;0.01为有特别显著性差异。结果育龄妇女手术后性激素FSH、LH、T均有升高(P&lt;0.01),E2、P下降(P&lt;0.01);血中TG、LDL、ApOB浓度升高(P&lt;0.05～P&lt;0.01),HDL、ApOA1明显下降(P&lt;0.01);OGTT两项异常者明显增多(P&lt;0.05);骨密度下降(P&lt;0.05)。     

板蓝根提取液体内抗流感病毒作用的研究

目的:研究板蓝根提取液抗甲1型流感病毒鼠肺适应株的作用及其对机体免疫力的影响。方法:用鸡胚培养法观察板蓝根提取液灭活甲1型流感病毒鼠肺适应株;以病毒滴鼻感染小鼠,建立病毒感染小鼠的模型,观察肺指数、病毒致小鼠死亡率,无菌进行脾T、B淋巴细胞增殖实验。结果:(1)鸡胚实验显示,板蓝根提取液能明显灭活病毒。(2)动物实验表明,经过板蓝根提取液治疗的小鼠死亡率明显降低,肺脏病变减轻,免疫细胞增多。结论:板蓝根提取液具有一定的抗甲1型流感病毒鼠肺适应株和增强机体免疫力的作用。     

Changes in intestinal microflora in patients with chronic severe hepatitis

Objective To investigate changes in intestinal microflora in patients with chronic severe hepatitis (CSH), and their role in this life-threatening disease.Methods We classified nineteen patients with chronic severe hepatitis as the CSH group, thirty patients with chronic hepatitis (CH) as the CH group and thirty-one heal thy volunteer as the control group. Fecal flora from all subjects were analyzed . Concentrations of plasma endotoxin, serum cytokines tumor necrosis factor alp ha (TNF-α) and interleukin-1 beta (IL-1β) and liver function were assessed .Results The number of fecal bifidobacterium (P&lt;0.001, P&lt;0.05 respectively), as well as bacteroidaceae (P&lt;0.001, P&lt;0.01 respectively) were significan tly deceased in patients with chronic severe hepatitis compared with the CH and control groups, while the number of enterobacteriaceae (P&lt;0.001, P&lt; 0.05 respectively) and yeasts (P&lt;0.01, P&lt;0.05 respectively) were sign ificantly increased. Levels of plasma endotoxin, serum TNF-α, IL-1β and tot al bilirubin (TBiL) were significantly increased in the CSH group. The concentr ation of endotoxin positively correlated with levels of both TNF-α, IL-1β an d TBiL (P&lt;0.001, respectively). Levels of plasma endotoxin were positivel y correlated with the number of fecal enterobacteriaceae and negatively correlat ed with bifidobacterium (P&lt;0.05, P&lt;0.001, respectively).Conclusion Intestinal flora in patients with chronic severe hepatitis were severely disturb ed and gut mircobiological colonization resistance was impaired. Changes in int estinal flora may have a pivotal role in both the elevation of plasma endotoxin and further hepatic lesions resulting in liver failure.     

胰岛素强化治疗对初诊老年2型糖尿病胰岛β细胞功能的影响

目的观察短期胰岛素强化治疗和使用口服降糖药对老年初诊2型糖尿病β细胞功能和血糖控制的影响。方法对70例初诊2型糖尿病患者分为胰岛素强化治疗组(A组)和口服降糖药治疗组(B组),分析比较同组治疗前后及两组间治疗后空腹血糖(FPG)及餐后2 h血糖(2 hPG)、糖化血红蛋白(HbA1C)、胰岛素及C肽分泌、β细胞胰岛素抵抗指数(IR)和β细胞胰岛素分泌指数(IS)的水平。结果治疗过程中A组1例、B组5例中途退出,未进入统计。A组:治疗后HbA1C和IR均明显降低(均P&lt;0.01);1 h、2 h胰岛素水平和1 h、2 h C肽分泌明显增加(均P&lt;0.01),IS明显增加(P&lt;0.01)。B组:治疗后HbA1C和IR均明显降低(均P&lt;0.05),1 h、2 h胰岛素分泌明显增加(均P&lt;0.05),IS明显增加(P&lt;0.05)。两组间各项指标比较,1 h、2 h胰岛素和1 h、2 h C肽水平A组与B组比较差异均有统计学意义(均P&lt;0.01),IS A组与B组比较差异也有统计学意义(P&lt;0.01)。结论胰岛素强化治疗可以快速控制老年2型糖尿病患者血糖,较传统口服降糖药显著改善胰岛β细胞功能。     

Relationships among apolipoprotein A1 gene polymorphisms, lipid levels and coronary atherosclerosis disease

Objective To investigate the relationship among -75 bp/+83 bp polymorphism in apolipoprotein A1 (apo A1) gene, lipids levels and the occurrence of coronary atherosclerosis disease (CAD). Methods We determined distributions of two MspI polymorphisms of the apo A1 gene at -75 bp and +83 bp, and blood lipids levels among 137 Chinese patients (92 with CAD and 45 in the control group) in relation to circulating lipids and coronary angiography. Results The demographic information for 137 subjects showed that subjects with CAD tended to have more unfavorable lipoprotein variables. Genotype distributions at both sites were different between the CAD and control groups. Furthermore, the control group had higher M1-/M2- frequencies than the CAD group (M1: P&lt;0.005; M2: P&lt;0.05) and the “M1-”(A) and “M2-” alleles were associated with increased high-density lipoprotein cholesterol (HDL-C) (M1-: P&lt;0.0001; M2-: P&lt;0.05) and apo A1 (M1-: P&lt;0.0001; M2-: P&lt;0.05) levels. “M1-” and “M2-” were significantly negatively correlated with CAD (P&lt;0.01 and P&lt;0.05, respectively). Conclusions Our results suggest that changes from G to A at the -75 bp site and from C to T or G to A at the +83 bp site do increase circulating levels of apo A1 and HDL-C. And those individuals with these changes are likely to have a lower risk of developing CAD.     

Reversal of MDR1 gene-dependent multidrug resistance using short hairpin RNA expression vectors

Background RNA interference using short hairpin RNA (shRNA) can mediate sequence-specific inhibition of gene expression in mammalian cells. A vector-based approach for synthesizing shRNA has been developed recently. Overexpression of P-glycoprotein (P-gp), the MDR1 gene product, confers multidrug resistance (MDR) to cancer cells. In this study, we reversed MDR using shRNA expression vectors in a multidrug-resistant human breast cancer cell line (MCF-7/AdrR). Methods The two shRNA expression vectors were constructed and introduced into MCF-7/AdrR cells. Expression of MDR1 mRNA was assessed by RT-PCR, and P-gp expression was determined by Western Blot and immunocytochemistry. Apoptosis and sensitization of the breast cancer cells to doxorubicin were quantified by flow cytometry and methyl thiazolyl tetrazolium (MTT) assays, respectively. Cellular daunorubicin accumulation was assayed by laser confocal scanning microscopy (LCSM). Statistical significance of differences in mean values was evaluated by Student’s t tests. P&lt;0.05 was considered statistically significant.Results In MCF-7/AdrA cells transfected with MDR1-A and MDR1-B shRNA expression vectors, RT-PCR showed that MDR1 mRNA expression was reduced by 40.9% (P&lt;0.05), 30.1% (P&lt;0.01) (transient transfection) and 37.6 % (P&lt;0.05), 28.0% (P&lt;0.01) (stable transfection), respectively. Western Blot and immunocytochemistry showed that P-gp expression was significantly and specifically inhibited. Resistance against doxorubicin was decreased from 162-fold to 109-fold (P&lt;0.05), 54-fold (P&lt;0.01) (transient transfection) and to 108-fold (P&lt;0.05), 50-fold (P&lt;0.01) (stable transfection). Furthermore, shRNA vectors significantly enhanced the cellular daunorubicin accumulation. The combination of shRNA vectors and doxorubicin significantly induced apoptosis in MCF-7/AdrR cells. Conclusions shRNA expression vectors effectively reduce MDR expression in a sustained fashion and can restore the sensitivity of drug-resistant cancer cells to conventional chemotherapeutic agents.     

帕瑞昔布与地佐辛超前镇痛对肝炎肝硬化患者术后镇痛及凝血系统影响评价

【】目的：评估肝炎肝硬化患者手术中应用帕瑞昔布与地佐辛进行超前镇痛对术后镇痛质量及凝血功能的影响。方法：选择我院96例行腹部手术的肝炎肝硬化患者进行前瞻性研究,依据随机原则分为联合组(32例,麻醉诱导前10 min帕瑞昔布与地佐辛超前镇痛)、帕瑞昔布组(32例,麻醉诱导前单用帕瑞昔布超前镇痛)与对照组(32例,麻醉诱导前予以生理盐水)。三组术后均未予以镇痛处理。分别于术后即刻(T&lt;sub&gt;0&lt;/sub&gt;)、术后60min(T&lt;sub&gt;1&lt;/sub&gt;)、120min(T&lt;sub&gt;2&lt;/sub&gt;)、4h(T&lt;sub&gt;3&lt;/sub&gt;)、12h(T&lt;sub&gt;4&lt;/sub&gt;)五个时间点,评估并比较三组患者疼痛视觉模拟评分(VAS评分)、外周静脉血β-内啡肽(β-EP)及Ramsay 镇静评分的差异。术前及术后4h检测并比较三组患者凝血酶原时间(PT)、激活部分凝血酶原时间(APTT)、国际标准化比值(INR)、纤维蛋白原浓度(Fib)及血小板聚集率的差异。同时记录并比较三组患者手术时间、苏醒时间、拔管时间和苏醒期躁动发生率差异;比较三组患者术后不良反应发生率。结果：同时间点对照组VAS评分及外周血β-EP水平最高,帕瑞昔布组次之,联合组最低(P&lt;0.05),但三组Ramsay镇静评分均无差异(P&gt;0.05)。随着术后时间延长,三组患者VAS评分、外周血β-EP水平及Ramsay镇静评分均无显著差异(P&gt;0.05)。术前与术后PT、APTT、INR及Fib各指标在三组间均无差异(P&gt;0.05),在同组内PT、APTT、INR及Fib各指标术前与术后也均无差别(P&gt;0.05)。而术前三组血小板聚集率无显著差异(P&gt;0.05),但术后联合组最低,帕瑞昔布组次之,对照组最高(P&lt;0.05);且三组内术后血小板聚集率均显著低于术前(P&lt;0.05)。三组患者手术时间、苏醒时间、拔管时间均无差异(P&lt;0.05),但对照组苏醒期躁动发生率最高,帕瑞昔布组次之,联合组最低(P&lt;0.05)。术后三组患者术后不良反应发生率无显著差异(P&gt;0.05)。结论：肝炎肝硬化患者术中应用帕瑞昔布与地佐辛进行超前镇痛对术后镇痛质量更佳,对凝血功能无影响,且安全性均较好。     

浮针疗法联合Rood物理技术治疗偏瘫肩痛的临床疗效观察

目的：观察浮针疗法结合Rood物理技术治疗偏瘫肩痛（Hemiplegia shoulrer pain,HSP）的临床疗效。方法：将90例偏瘫后肩痛患者随机分为治疗者、对照组,每组45例。治疗组运用浮针疗法结合Rood物理技术;对照组单用Rood物理技术。治疗周期30天,观察其临床疗效、疼痛视觉模拟评分法（VAS）评分,Fugl-Meyer上肢运动功能评分（FMA）、改良Barthel（MBI）评分。结果：治疗组较对照组临床疗效有统计学差异（P&lt;0.05）;治疗组治疗前后VAS、MBI、FM均有明显统计学差异（P&lt;0.01）,对照组VAS、FMA较前有统计学差异（P&lt;0.05）,MBI无统计学差异（P&gt;0.05）;组间比较,治疗组较对照组VAS、MBI、FMA均有明显统计学差异（P&lt;0.01）。结论：浮针疗法联合Rood物理技术较单用Rood技术更能促进偏瘫肩痛患者的疼痛改善及上肢功能的好转。     

The relationship between Th1/Th2-type cells and disease activity in patients with systemic lupus erythematosus

Objective To investigate the imbalance of Th1/Th2-type cytokines in patients with systemic lupus erythematosus (SLE) and its relation to disease activity. Methods Intracellular cytokines were determined by flow-cytometry following whole-blood culture. Results Patients with systemic lupus erythematosus disease activity index (SLEDAI) &gt;10 had statistically significantly fewer CD4(+)or CD8(+)T cells producing IFN-γ than patients with SLEDAI =0, SLEDAI 1-10 or healthy controls (P&lt;0.01, P&lt;0.01 or P&lt;0.05, respectively). Patients with SLEDAI&gt;10 also had decreased ratio of IFN-γ/IL-4 positive CD4(+)or CD8(+)T cells, compared with patients with SLEDAI =0, SLEDAI 1-10 or healthy controls (P&lt;0.05). The decreased Th1 or Tc1 cells and the ratios of IFN-γ: IL-4 positive CD4(+)T-cells were significantly correlated with disease activity (P&lt;0.05). Conclusion SLE is characterized by an imbalance of Th1/Th2 and Tc1/Tc2 cytokines. The decreased Th1 or Tc1 cells and the Th1/Th2 ratio are related to disease activity.     

四种板兰根提取物抗流感病毒作用实验研究

【目的】研究板蓝根中性、酸性、碱性和两性提取物抗流感病毒作用及其对机体免疫力的影响。【方法】用鸡胚培养法观察板蓝根提取物对流感病毒接种鸡胚的毒性抑制作用;以病毒滴鼻感染小鼠,建立病毒感染小鼠的模型,观察4种提取物对模型小鼠死亡率及脾T细胞、B淋巴细胞增殖的影响。【结果】鸡胚实验显示,板蓝根酸性提取物能显著阻滞病毒感染鸡胚。动物实验表明,经过酸性提取物治疗的小鼠死亡率明显降低,鼠脾T细胞、B淋巴细胞刺激指数增高,免疫功能增强,其它3种提取物均无上述作用。【结论】板蓝根酸性提取物具有较强的直接抑制流感病毒的作用。     

小剂量糖皮质激素治疗结核性胸腔积液的疗效分析

目的:观察胸腔内注射小剂量糖皮质激素(地塞米松)防治结核性胸腔积液胸膜肥厚及粘连的疗效。方法:初治的有中等量结核性胸腔积液患者42例,随机分为治疗组22例和对照组20例,两组均按同样的抗结核方案治疗,治疗组抽胸腔积液后注入地塞米松10mg,对照组未注入任何药物,比较两组的疗效。结果:治疗组胸腔穿刺次数较对照组减少(P&lt;0.05),胸腔积液完全吸收时间较对照组显著缩短(P&lt;0.05),治疗组注药后胸腔厚度[(0.50&#177;0.11)cm]较注药前[(0.64&#177;0.18)cm]减轻(P&lt;0.05),与对照组比较差异也具统计学意义(P&lt;0.05),治疗组未见不良反应。结论:胸腔内注射地塞米松有缩短胸腔积液完全吸收时间,防治胸膜肥厚及粘连的作用。     

圣&#183;约翰草提取物治疗肠易激综合征伴抑郁症状的效果观察

目的 观察圣&#183;约翰草提取物治疗肠易激综合征伴抑郁症的治疗效果.方法 30例患者随机分为治疗组和对照组,所有病人均口服马来酸曲美布汀胶囊,并进行抑郁自评量表(SDS)评分,治疗组再此基础上加服圣&#183;约翰草提取物胶囊.比较治疗前后两组的症状改善情况及SDS评分变化,疗程4周.结果 4周治疗结束后,治疗组的症状改善优于对照组(P&lt;0.01),SDS评分明显低于对照组(P&lt;0.05),治疗组的症状改善程度和SDS粗分评定具有较好的依存性.结论 圣&#183;约翰草提取物治疗肠易激综合征伴抑郁症患者疗效好,副反应少.     

板蓝根颗粒对甲型流感病毒小鼠的作用

目的测定板蓝根颗粒抗流感病毒的药效作用。方法 A/California/7/2009(CA7)病毒滴鼻感染BALB/c小鼠观察14d,观察板蓝根对甲型H1N1流感病毒感染小鼠的保护作用,计算小鼠存活率、存活天数以及延长生命率。感染的小鼠第5天每组小鼠处死一半,取肺组织,观察板蓝根对甲型H1N1流感病毒感染小鼠肺组织的保护作用。结果板蓝根可明显延长甲型H1N1流感病毒感染小鼠的存活天数并提高存活率,病理结果显示板蓝根对甲型H1N1流感病毒感染的小鼠的肺组织有一定程度的保护作用,与模型组比较差异显著(P0.05)。结论板蓝根颗粒对甲型H1N1流感病毒感染的小鼠有较好的保护作用。     

综合疗法治疗儿童弱视的疗效观察

目的探讨综合疗法治疗儿童弱视的的效果。方法对有完整资料的弱视儿童(109例186眼)进行随访观察,根据弱视患儿不同情况采用遮盖疗法、压抑疗法、红光及光刷训练、精细目力训练等。结果总有效率91.40%;屈光不正性弱视的疗效明显优于屈光参差性和斜视性弱视,它与其他两组间比较差异有统计学意义(P&lt;0.05);弱视程度越轻,治疗效果越好,重度弱视与轻、中度弱视比较差异均有统计学意义(P&lt;0.05;P&lt;0.05);年龄越小,治疗效果越好,3～7岁组弱视治疗效果最好,与另外两组比较差异有统计学意义(P&lt;0.05;P&lt;0.01)。结论综合疗法治疗弱视效果好,但是疗效与弱视类型、程度、检出并进行治疗的年龄密切相关。定期随访是防止复发的关键。     

虚燥更平颗粒对女性更年期高血压血压变异性的影响

目的:运用虚燥更平颗粒治疗女性更年期高血压病,观察对血压变异性的影响,并观察临床疗效,从而为中医治疗女性更年期高血压证型提供临床依据。方法:将62例女性更年期高血压病阴虚内燥证患者按1∶1随机分成治疗组和对照组,分别于治疗前后进行24h动态血压监测(ABPM)、生活质量评分及临床疗效评定,分析两组患者治疗前后的血压变异和生活质量等的改善情况。结果:(1)治疗组治疗后平均收缩压、舒张压均明显下降(P&lt;0.05),与对照组相比,治疗组24h平均收缩压、白昼平均舒张压、夜间平均收缩压、夜间平均舒张压下降更为显著(P&lt;0.01);(2)治疗组在治疗前后其血压变异性有差异,治疗后其血压变异性明显小于治疗前(P&lt;0.05),治疗组治疗后全天血压变异明显低于对照组。治疗组白昼收缩压变异性、白昼舒张压变异、夜间收缩压变异、夜间舒张压变异明显小于对照组,其差异性更加显著(P&lt;0.01),而对照组治疗前后除24h舒张压变异有差异外,其他时间血压变异无明显差异性(P&gt;0.05);(3)两组临床疗效比较,治疗组疗效优于对照组(P&lt;0.01);(4)治疗组与对照组比较生活质量明显改善(P&lt;0.01)。结论:虚燥更平颗粒治疗女性更年期高...