长春瑞滨联合奥沙利铂对中老年晚期非小细胞肺癌患者的临床疗效分析

[目的]探讨长春瑞滨联合奥沙利铂（NL方案）治疗中老年患者晚期非小细胞肺癌（NSCLC）的临床疗效及相关不良反应.[方法]收集本院2007～2013年收治的56例中老年晚期非小细胞肺癌患者临床资料.化疗方案为长春瑞滨25 mg/m2静脉推注,d1,d8;奥沙利铂130mg/m2静脉滴注,d2;21 d为1个周期,治疗最少2周期.观察患者的临床疗效及不良反应.[结果]联合用药化疗的总有效率为32.1％,患者的1年存活率为35.7％.药物的主要不良反应为乏力、白细胞减少、神经毒性、恶心呕吐等,但患者均可耐受.[结论]长春瑞滨联合奥沙利铂对中老年晚期NSCLC疗效确切,且患者的耐受性较好,值得临床推广.     

血液灌流联合血液滤过对急性有机磷农药中毒患者的心脏保护作用研究

目的探讨血液灌流(HP)联合连续性静脉-静脉血液滤过(CVVH)对急性有机磷农药中毒(AOPP)患者的心脏保护作用和心功能影响。方法以81例重症AOPP并中毒性心肌炎患者为研究对象,随机分为对照组40例,给予常规内科治疗+HP;治疗组41例,给予常规内科治疗和HP+CVVH。观察两组患者治疗开始前及治疗24 h、48 h、72 h,各时间点左心室射血分数(LVEF)、B型脑钠肽(BNP)、肌钙蛋白I(cTnI)及机械通气天数和病死率的差异。结果 (1)两组患者治疗前LVEF[(47.6±9.9)%vs.(47.4±10.1)%,P>0.05]、BNP[(516.3±285.4)pg/L vs.(534.4±301.9)pg/L,P>0.05]及cTnI[(0.61±0.26)ng/ml vs.(0.58±0.23)ng/ml,P>0.05]比较均无统计学差异,组间有可比性。(2)治疗组较对照组,治疗后各时间点LVEF均增大[(52.8±7.5)%vs.(47.6±8.4)%,(55.2±5.2)%vs.(50.9±7.2)%,(60.1±6.4)%vs.(53.6±5.4)%,均P<0.05],BNP均减小[(321.7±182.8)pg/L vs.(495.9±269.9)pg/L,(254.7±117.8)pg/L vs.(382.7±167.5)pg/L,(125.4±62.7)vs.(293.8±121.1)pg/L,均P<0.05],cTnI均减小[(2.16±0.48)ng/ml vs.(2.79±0.36)ng/ml,(5.37±3.79)ng/ml vs.(8.35±4.51)ng/ml,(3.01±1.26)ng/ml vs.(8.41±5.45)ng/ml,P<0.05],差异有统计学意义。(3)治疗组治疗后各时间点与治疗前比较,LVEF均增大[(52.8±7.5)%、(55.2±5.2)%、(60.1±6.4)%vs.(47.6±9.9)%,均P<0.01],BNP均减小[(321.7±182.8)pg/L、(254.7±117.8)pg/L、(125.4±62.7)pg/L vs.(516.3±285.4)pg/L,均P<0.01],差异有统计学意义。(4)对照组治疗后24 h与治疗前比较,LVEF、BNP均无统计学差异;治疗后48 h、72 h与治疗前比较,LVEF均增大[(50.9±7.2)%、(53.6±5.4)%vs.(47.4±10.1)%,均P<0.05],BNP均减小[(382.7±167.5)pg/L、(293.8±121.1)pg/L vs.(534.4±301.9)pg/L,均P<0.01],差异有统计学意义。(5)治疗组较对照组机械通气时间缩短[(7.4±2.9)d vs.(10.7±4.1)d,P=0.001],病死率下降(12.2%vs.30.0%,P=0.048)。结论 HP联合CVVH能够减轻AOPP的心肌损伤,改善心功能,缩短机械通气时间,降低病死率,改善患者预后。     

黄酮类化合物提取分离方法简介

黄酮类化合物广泛分布于植物界,具有多种重要的药理作用。对黄酮类化合物的基本性质以及现阶段的提取分离、精制方法做一简介,并比较了各种方法的优缺点及研究发展现状。     

营养丰富的茶叶

茶叶富含各种营养成分。据生物化学专家的分离鉴定,小小一片茶叶,竟含有500多种化合物,构成这些化合物的基本元素有25种以上。茶叶品质的高低和不同茶类的形成,取决于茶鲜叶的化学成分含量以及加工过程中这些化学成分的变化。     

莱菔硫烷在肿瘤防治中的作用及其机制研究进展

近年流行病学的研究表明，经常食用十字花科蔬菜可以减少患一些癌症的危险。在该类蔬菜中含有一类含硫化合物，硫代葡萄糖甙（glucosinolates，GS），是重要的次生代谢产物，因其侧链基团的不同，可分为三类：脂肪类、芳香类和吲哚类硫代葡萄糖甙，定位在细胞的液泡中。     

急性有机磷中毒与心房颤动的关系

Objective To explore the relationship between acute organophosphate poisoning and atrial fibrillation (AF). Methods Three hundred and twenty-two acute organophosphorus poisoning of elderly patients treated from January 2000 to June 2008 in our hospital were analyzed. Among these patients, 36 cases with AF were selected as case group and 38 age-gender-matched cases without AF were selected as control group. Serum cholinesterase (ChE), myocardial damage markers such as creatine kinase (CK), creatine kinase-MB isoenzyme (CK-MB) and Troponin- Ⅰ (cTn-Ⅰ) were compared between the two groups. Results ChE was decreased in the two groups, and ChE was lower in case group than in control group [(1126. 42±1047.02) vs. (1604.82±934.06)U/L, t= 2.07, P=0. 0414]. CK, CK-MB and cTn-Ⅰ were increased in different degree in the two groups. There was no difference in CK between the two groups [(609.97±597.84) U/L vs. (462.84± 530. 71)U/L, t= 1. 121, P= 0. 266]. CK-MB and cTn-I were higher in case group than in control group [(97.31±104.50) vs. (55. 16±69.62)U/L, t=2. 052,P=0. 0438; (2.39±0. 88) vs. (1.81± 1.38) μg/L, t = 2. 132, P = 0. 036, respectively9 . Conclusions AF caused by acute organophosphate poisoning may be related to the decrease of ChE activity, acetylcholine accumulation and myocardial injury.     

两种价态锰化合物对SH-SY5Y细胞损伤作用的体外研究

为探讨两种价态（2价和3价）锰化合物对SY5Y细胞的细胞毒性和引起细胞凋亡的作用，选择了多巴胺能神经细胞SH－SY5Y细胞作为受试系统，细胞活力测定结果显示Mn^2 和Mn^3 可依时间和剂量依赖性而使细胞的存活率减少，但Mn^3 的细胞毒性作用高于Mn^2 ，相差显微镜下观察，Mn^2 和Mn^3 刺激细胞24h后，细胞变圆，贴壁状态不好，HE染色得到相似的结果，在用流式细胞仪Mn^2 和Mn^3 的致凋亡作用中发现，不同价态锰均可引起SH－SY5Y细胞发生凋亡，但Mn^3 的致凋亡作用强于Mn^2 。     

黄酮类化合物对心血管系统的作用

黄酮类化合物是一类低分子的天然植物成分,广泛存在于植物界,具有C6 C3 C6基本构型,为植物体多酚类的代谢物。主要分为以下6类:黄酮及黄酮醇类、二氢黄酮及二氢黄酮醇类、黄烷醇类、异黄酮及二氢异黄酮、双黄酮类;其他类如喳尔酮、花色甙等,有数百种,部分已人工合成,多数具有显著生理药理活性,生物学作用多样,本文摘要其对心血管系统的作用。1.抑制血小板聚集多数黄酮类抑制ADP、AA、PAF诱导的血小板聚集,体外抑制血小板功能的有效剂量在1～10uM ,能减少AA、AT3、TXA2产生。敖英等[1] 研究水杉总黄酮(FMG)对大鼠血小板聚集的影响,…     

Effect of resveratrol and in combination with 5-FU on murine liver cancer

AIM: To study the anti-tumor effect of resveratrol and in combination with 5-FU on murine liver cancer. METHODS: Transplantable murine hepatoma22 model was used to evaluate the anti-tumor activity of resveratrol (RES) alone or in combination with 5-FU in vivo. H22 cell cycles were analyzed with flow cytometry. RESULTS: Resveratrol could inhibit the growth of murine hepatoma22, after the mice bearing H22 tumor were treated with 10 mg/kg or 15 mg/kg resveratrol for ten days, and the inhibition rates were 36.3% (n = 10) and 49.3% (n = 9), respectively, which increased obviously compared with that in control group (85+/-22 vs 68+/-17, P<0.01). RES could induce the S phase arrest of H22 cells, and increase the percentage of cells in S phase from 59.1% (n = 9) to 73.5% (n = 9) in a dose-dependent manner (P<0.05). The enhanced inhibition of tumor growth by 5-FU was also observed in hepatoma22 bearing mice when 5-FU was administered in combination with 10 mg/kg resveratrol. The inhibition rates for 20 mg/kg or 10 mg/kg 5-FU in combination with 10 mg/kg resveratrol were 77.4% and 72.4%, respectively, compared with the group of 20 mg/kg or 10 mg/kg 5-FU alone, in which the inhibition rates were 53.4% and 43.8%, respectively (n = 8). There was a statistical significance between the combination group and 5-FU group. CONCLUSION: RES could induce the S phase arrest of H22 cells and enhance the anti-tumor effect of 5-FU on murine hepatoma22 and antagonize its toxicity markedly. These results suggest that resveratrol, as a biochemical modulator to enhance the therapeutic effects of 5-FU, may be potentially useful in cancer chemotherapy.