氟比洛芬酯脂微球注射液对38例癌症疼痛镇痛效果的临床观察

目的：观察氟比洛芬酯脂微球载体注射液（商品名凯纷）治疗癌痛的疗效和副作用。方法：38例未使用阿片类药物的中重度癌性疼痛患者每天静脉注射50mg/5ml氟比洛芬酯脂微球载体注射液．分别就其疗效、生活质量改善情况以及不良反应等方面进行评价。结果：氟比洛芬酯脂微球载体注射液治疗中重度癌痛的有效率为71．05％．生活质量改善情况治疗前后有显著差异（P〈0．05）。但未见一般非甾体类药物常见腹痛、消化道出血等副作用；也未见便秘、恶心、呕吐、嗜睡等阿片类药物常见不良反应。结论：氟比洛芬酯脂微球载体注射液治疗中重度癌痛疗效可靠．生活质量可得到改善．但氟比洛芬酯脂微球载体注射液不良反应发生率较低，可部分作为临床候选药品或口服吗啡替代药。     

西妥昔单抗联合IMRT同步化疗治疗晚期鼻咽癌的疗效观察

目的 观察西妥昔单抗联合调强适形放疗(IMRT)同步顺铂化疗治疗晚期鼻咽癌的临床疗效及不良反应.方法 选取2010年1月～2013年1月我科收治的64例晚期鼻咽癌患者随机分为实验组和对照组,每组32例.实试组给予西妥昔单抗联合适形放疗同步顺铂化疗,对照组给予适形放疗同步顺铂化疗,观察比较两组的临床疗效及不良反应.结果 治疗后近期疗效,室验组和对照组的总有效率分别为90.6％和68.8％,疾病控制率分别为100.0％和81.3％;远期疗效,实验组和对照组的总有效率分别为78.1％和53.1％,疾病控制率分别为96.9％和75.0％.实验组的近、远期疗效均优于对照组(P＜0.05),两组不良反应发生情况未见明显差异(P＞0.05).结论 西妥昔单抗联合适形放疗同步顺铂化疗治疗晚期鼻咽癌具有较好的临床疗效和安全性,值得临床推广.     

晚期非小细胞肺癌综合治疗的前瞻性研究

目的探讨提高Ⅲ期非小细胞肺癌治疗效果的方法。方法85例Ⅲ期非小细胞肺癌患者随机分为3组,并进行不同顺序的治疗,A组(化疗+手术+放疗)28例,放疗后配合辅助化疗;B组(手术+化疗+放疗)28例;C组(手术+放疗+化疗)29例。比较各组3年生存率、局部区域复发率和远处转移率的差异性。结果A、B、C3组3年生存率分别为75.00%,53.57%,44.83%,其中A组与C组比较差异有显著性意义(P<0.05);3组局部区域复发率分别为7.14%,32.14%,17.24%,其中A组与B组比较差异有显著性意义(P<0.05);各组远处转移率分别为7.14%,10.71%,37.93%,其中A组与C组及B组与C组比较,差异均有显著性意义(P<0.05)。结论术前化疗再手术,配合术后放疗及辅助化疗,可提高治疗Ⅲ期非小细胞肺癌的疗效。     

Salvianolic acid B protects human endothelial progenitor cells against oxidative stress-mediated dysfunction by modulating Akt/mTOR/4EBP1, p38 MAPK/ATF2, and ERK1/2 signaling pathways

The vascular endothelium is specifically sensitive to oxidative stress, and this is one of the mechanisms that causes widespread endothelial dysfunction in most cardiovascular diseases and disorders. Protection against reactive oxygen species (ROS)-mediated oxidative damage via antioxidant mechanisms is essential for tissue maintenance and shows therapeutic potential for patients suffering from cardiovascular and metabolic disorders. Salvianolic acid B (SalB), a natural bioactive component known from Traditional Chinese Medicine, has been reported to exert cellular protection in various types of cells. However, the underlying mechanisms involved are not fully understood. Here, we showed that SalB significantly promoted the migratory and tube formation abilities of human bone marrow derived-endothelial progenitor cells (BM-EPCs) in vitro, and substantially abrogated hydrogen peroxide (H₂O₂)-induced cell damage. SalB down-regulated Nox4 and eNOS, as well as nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase expression upon H₂O₂ induction that in turn prevents oxidative-induced endothelial dysfunction. Moreover, SalB suppressed the Bax/Bcl-xL ratio and caspase-3 activation after H₂O₂ induction. Furthermore, our results provide mechanistic evidence that activation of the mTOR/p70S6K/4EBP1 pathways is required for both SalB-mediated angiogenic and protective effects against oxidative stress-induced cell injury in BM-EPCs. Suppression of MKK3/6-p38 MAPK-ATF2 and ERK1/2 signaling pathways by SalB significantly protected BM-EPCs against cell injury caused by oxidative stress via reduction of intracellular ROS levels and apoptosis. Taken together, by providing a mechanistic insight into the modulation of redox states in BM-EPCs by SalB, we suggest that SalB has a strong potential of being a new proangiogenic and cytoprotective therapeutic agent with applications in the field of endothelial injury-mediated vascular diseases.     

Salidroside exerts angiogenic and cytoprotective effects on human bone marrowderived endothelial progenitor cells via Akt/mTOR/p70S6K and MAPK signalling pathways

Background and Purpose

With the increase of age, increased susceptibility to apoptosis and senescence may contribute to proliferative and functional impairment of endothelial progenitor cells (EPCs). The aim of this study was to investigate whether salidroside (SAL) can induce angiogenic differentiation and inhibit oxidative stress-induced apoptosis in bone marrow-derived EPCs (BM-EPCs), and if so, through what mechanism.

Experimental Approach

BM-EPCs were isolated and treated with different concentrations of SAL for up to 4 days. Cell proliferation, migration and tube formation ability were detected by DNA content quantification, transwell assay and Matrigel-based angiogenesis assay. Gene and protein expression were assessed by qRT-PCR and Western blot respectively.

Key Results

Treatment with SAL promoted cellular proliferation and angiogenic differentiation of BM-EPCs, and increased VEGF and NO secretion, which in turn mediated the enhanced angiogenic differentiation of BM-EPCs. Furthermore, SAL significantly attenuated hydrogen peroxide (H₂O₂)-induced cell apoptosis, reduced the intracellular level of reactive oxygen species and restored the mitochondrial membrane potential of BM-EPCs. Moreover, SAL stimulated the phosphorylation of Akt, mammalian target of rapamycin and p70 S6 kinase, as well as ERK1/2, which is associated with cell migration and capillary tube formation. Additionally, SAL reversed the phosphorylation of JNK and p38 MAPK induced by H₂O₂ and suppressed the changes in the Bax/Bcl-xL ratio observed after stimulation with H₂O₂.

Conclusions and Implications

These findings identify novel mechanisms that regulate EPC function and suggest that SAL has therapeutic potential as a new agent to enhance vasculogenesis as well as protect against oxidative endothelial injury.     

转化生长因子β1对糖尿病骨代谢影响的实验研究

目的了解转化生长因子(TGF)β1与糖尿病性骨质疏松症之间的关系,及血管紧张素转换酶抑制剂福辛普利和血管紧张素Ⅱ受体拮抗剂氯沙坦对骨质疏松症的治疗作用。方法2月龄雄性大鼠20只,随机分为糖尿病组(A组)、福辛普利治疗组(B组)、氯沙坦治疗组(C组),正常对照(D组)。检测各组第1周及第12周血糖、24 h尿TGFβ1排泄率;随后测定各组大鼠股骨BMD并镜下观察骨形态学改变情况。结果第1周尿TGFβ1排泄率A、B、C三组均高于D组(P<0.01);第12周尿TGFβ1排泄率前三组明显高于D组(P<0.01),B、C二组低于A组(P<0.01)。股骨骨密度(BMD)A、B、C三组均低于D组(P<0.01),但A、B、C三组间差异无统计学意义。镜下可见A组股骨小梁明显变细,稀疏且断裂,B、C二组骨小梁情况优于A组,与D组比较仍差。结论1型糖尿病可影响雄性大鼠正常骨代谢,导致骨疏松症;尿TGFβ1排泄率增加似乎与骨质疏松关系不大;ACEI/ATRA治疗可部分改善糖尿病雄性大鼠骨质疏松症。     

网络技术在民族传统体育教学中的运用

网络技术是一种根据教学目标设计表现特定的教学内容，反映一定教学策略的教学程序，它可以存储、传递和处理教学信息，能让学生进行交互操作，并能对学生的学习情况作出反馈评价的教学媒体。用网络技术教学软件准确、直观、形象地演示教学过程，引发学生主动学习，激发创造思维，掌握新知识，提高教学效率，突破重点难点，提高教学质量。民族传统体育是中华民族数千年来形成的体育健身项目，它凝聚了我国劳动人民的智慧，无论过去、现在还是未来，在国际间的民族文化交流中，这颗华夏文化的璀璨明珠，是人类共同的财富，是通向终身体育教育的既实用经济，又有无限魅力的有效手段之一。同时也是传统文化的传播、教育媒体。作为学校教育重要组成部分的学校体育，特别是高等学校体育，要适应现代科学技术的发展，学校体育要面向21世纪，为培养现代化的人才，应更加重视体育教学的改革。将网络技术运用到民族传统体育教学中，是高校体育教育发展和进步的需要，是当代体育教学指导思想的重大变革，它对高等院校体育教学的改革和发展起着重大的推动作用。