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右旋糖酐类

右旋糖酐类的相关文献在1992年到2021年内共计72篇,主要集中在内科学、药学、外科学 等领域,其中期刊论文72篇、专利文献123247篇;相关期刊40种,包括中国病理生理杂志、解放军医学杂志、中华核医学与分子影像杂志等; 右旋糖酐类的相关文献由227位作者贡献,包括文哲、沈文彬、童冠圣等。

右旋糖酐类—发文量

期刊论文>

论文:72 占比:0.06%

专利文献>

论文:123247 占比:99.94%

总计:123319篇

右旋糖酐类—发文趋势图

右旋糖酐类

-研究学者

  • 文哲
  • 沈文彬
  • 童冠圣
  • 刘勇
  • 刘璐
  • 徐远义
  • 吴波
  • 孙明研
  • 孙红武
  • 崔力方
  • 期刊论文
  • 专利文献

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    • 张理火; 何丽娟; 刘璐
    • 摘要: 目的 建立测定猪凝血酶中右旋糖酐20含量的高效液相色谱法,并对方法进行验证和初步应用.方法 根据分子排阻色谱法,以亲水硅胶高效体积排阻色谱柱进行分离,采用示差折光检测器测定右旋糖酐20含量.应用该方法对3批猪凝血酶样品中右旋糖酐20含量进行检测.结果 该方法专属性强,线性范围为2.314~7.406 mg/ml;低、中、高3个浓度水平的平均回收率分别为99.72%、100.60%、101.83%,总平均回收率为100.72%(n=9),相对标准偏差为1.10%(n=9);中间精密度的相对标准偏差为1.43%(n= 12).3批猪凝血酶样品中右旋糖酐20含量分别为18.051、18.731、18.161 mg/ml,均符合企业标准.结论 该方法专属性强,准确度、精密度、耐用性良好,适用于猪凝血酶中右旋糖酐20含量测定.
    • 文哲; 童冠圣; 刘勇; 张丽; 李思源; 沈文彬
    • 摘要: 目的 观察99 Tcm-右旋糖酐(99TcmDX)淋巴显像评价Klippel-Trenaunay综合征(KTS)患者淋巴管畸形及淋巴水肿的应用价值.方法 回顾性分析36例临床确诊为KTS患者的临床及核素淋巴显像资料.经双足趾间皮下注射99 Tcm-DX后,分别于给药后10 min、1h、3h及6h行全身淋巴显像,观察患者双下肢淋巴管、双腹股沟及髂、腰淋巴结、胸导管及静脉角区的显影情况以及全身其他部位有无显像剂异常分布.结果 36例KTS患者中,35例淋巴显像提示淋巴管、淋巴结显影异常并伴淋巴水肿,其中31例为单侧下肢淋巴水肿、4例为双下肢淋巴水肿.20例出现颈部静脉角区域异常显影,其中15例为左静脉角区域显像剂滞留,2例为右静脉角区域显像剂滞留,3例为双静脉角区域显像剂滞留.12例伴会阴部淋巴水肿.8例出现身体其他部位的异常淋巴管显影.结论 39TcmDX淋巴显像可以评价KTS患者淋巴管与淋巴结发育异常以及胸导管回流状况.
    • 王娟; 黄允宁; 颜贝; 王红红; 金秀; 王潇飞; 徐远义
    • 摘要: Objective To study the effect of dextran sulfate (DS) between preventive use and treatment use on human gastric cancer cells celiac plantation. Methods Gastric cancer BGC-823 cells were cultured for constructing the nude mice model. One hundred and ten BALB/C nude mice were randomly divided into the prevention group (60 cases) and treatment group (50 cases). The prevention group was simultaneously injected by tumor cells and DS ,while the treatment group was injected with DS at 24 h after injecting tumor cells. The abdominal cavity of nude mice was opened for observing the celiac planting number of gastric cancer cells. The whole nodules were verified by the HE staining. The expression level of greater omentum in-tegrinβ1 protein was detected by immunohistochemistry and the expression of greater omentum integrin β1 mRNA was detected by reverse transcription-polymerase chain reaction(RT-PCR). Results The HE staining showed the number of intraperitoneal metastatic tumor nodules in the treatment group was significantly more than that of the prevention group ,the difference was sta-tistically significant(P<0.01). The immunohistochemical results showed that the expression of integrinβ1 protein in the treatment group was significantly higher than that in the prevention group,the difference was statistically significant(P<0.05). The RT-PCR results showed that the expression of integrin β1 mRNA in the treatment group was significantly higher than that in the preven-tion group,the difference was statistically significant(P<0.01). Conclusion DS has better effect for preventing gastric cancer celiac implanting metastasis than for treating gastric cancer celiac implanting metastasis.%目的探讨预防性使用硫酸右旋糖苷(DS)和治疗性使用DS对人胃癌细胞腹腔种植的作用。方法培养胃癌BGC-823细胞,构建裸鼠动物模型:选用BALB/C裸鼠共110只,随机分为预防组(60只)和治疗组(50只)。预防组在注射肿瘤细胞的同时注射DS,治疗组注射肿瘤细胞24 h后注射DS。打开裸鼠腹腔,观察胃癌细胞腹腔种植的数量,所有结节经HE染色证实。应用免疫组织化学染色(SP法)检测大网膜整合素β1蛋白的表达,应用RT-PCR方法检测大网膜整合素β1 mRNA的表达。结果 HE染色结果显示治疗组裸鼠腹腔转移的肿瘤结节数量明显多于预防组,差异有统计学意义(P<0.05),SP法结果显示治疗组整合素β1蛋白的表达量明显高于预防组,差异有统计学意义(P<0.01),RT-PCR结果显示治疗组整合素β1 mRNA的表达量明显高于预防组,差异有统计学意义(P<0.01)。结论 DS预防胃癌腹腔种植转移的效果比治疗胃癌腹腔种植转移的效果更佳。
    • 王红红; 王娟; 金秀; 徐远义
    • 摘要: 目的 探讨硫酸右旋糖酐(DS)是否可抑制胃癌腹腔种植转移及其对缺氧诱导因子-1α(Hif-1α)表达的影响.方法 裸鼠72只分为两大组,对照组32只,实验组40只,培养BGC-823胃癌细胞,腹腔注射建立裸鼠腹腔种植转移动物模型.注射胃癌细胞1d后,对照组注射生理盐水1 mL,实验组注射0.3%DS 1 mL.于1、3、7、14d时剖腹观察胃癌细胞腹腔种植转移情况,采用逆转录PCR(RT-PCR)及免疫组织化学检测缺氧诱导因子(Hif-1α) mRNA及蛋白的表达.结果 第7、14天实验组瘤结节数明显少于对照组.经RT-PCR及免疫组织化学检测,第3、7、14天实验组Hif-1α mRNA及蛋白的表达明显低于对照组(P<0.05).结论 DS可以抑制胃癌的腹腔种植转移,DS可能是通过下调Hif-1α的表达来抑制胃癌的腹腔种植转移.
    • 李易; 孙红武; 文曦琳; 欧阳羽; 文明; 李少林
    • 摘要: 目的 确定葡聚糖修饰的SPIO纳米颗粒最佳工艺条件并对其质量进行评价.方法 利用影响SPIO纳米颗粒粒径的4因素(溶液pH值、葡聚糖浓度、反应温度、搅拌速度)3水平正交实验设计,得出SPIO纳米颗粒的最佳制备工艺条件,并在该条件下制备SPIO纳米颗粒样品,分别用透射电镜、粒度分析仪对其进行形貌观察及粒径检测,用原子吸收光谱仪测定其铁含量,红外光谱仪分析表征,X射线粉末衍射法进行成分鉴定,振动样品磁强计测定磁学参数,并用其标记SKOV3卵巢癌细胞,验证其磁学性质.结果 制备葡聚糖修饰SPIO纳米颗粒的最佳工艺条件为:葡聚糖浓度10mg/ml,反应溶液pH值10,反应温度80°C,搅拌速度600 r/min.制备的SPIO纳米颗粒呈球形,分布较均匀,大小较一致,平均粒径7.0 nm,铁含量(12.36±0.08) g/L;红外光谱分析示样品外成功包裹葡聚糖,样品成分为Fe3O4,有超顺磁性;可进入待标记细胞,并使细胞带有磁性.结论 最佳工艺条件下制备的葡聚糖修饰SPIO纳米颗粒性质稳定、粒径较小、分散性较好,能顺利进入待标记细胞并使细胞具有一定磁性,为后续研究奠定了良好基础.
    • 李易; 孙红武; 文曦琳; 欧阳羽; 文明; 李少林
    • 摘要: Objective To determine the optimal procedure for preparation of the SPIO nanoparticles modified by dextran polylysine,and to evaluate the quality of this product.Methods The optimal preparation procedure of four factors (solution pH value,dextran concentration,reaction temperature and stirring rate) affecting SPIO hydrodynamic size were obtained through orthogonal experiments (3 levels).SPIO nanoparticles were synthesized under an optimum procedure.The shape and hydrodynamic size were detected by transmission electron microscope (TEM) and Malvern Zetasizer respectively.The content of Fe was detected by atomic absorption spectrophotometer,while chemical structures of SPIO nanoparticles were characterized and analyzed by infrared spectroscopy (IR) method.X-ray powder diffraction method was used to identify the ingredients,and the magnetic parameters were measured by vibrating sample magnetometer.Furthermore,experiments with ovarian cancer cells were performed to primarily validate the magnetic property of SPIO nanoparticles.Results The results of the orthogonal experiments showed that the optimum preparation procedure was as follows:dextran concentration of 10 mg/ml,pH 10,reaction temperature of 80 °C and stirring rate of 600 r/min.The TEM results showed the SPIO nanoparticles were in spherical shape,homogeneously distributed and uniform in size,and the mean diameter was 7.0 nm.The content of Fe was (12.36±0.08) g/L.The IR results clearly showed that the Fe3O4 was coated by dextran successfully.The Xray powder diffraction method showed that the sample contained Fe3O4 and the magnetism parameters indicated that the sample had superparamagnetism.The experiments with ovarian cancer cells demonstrated that SPIO nanoparticles could enter into the cells and then the cells had certain magnetic properties.Conclusions The SPIO nanoparticles synthesized under the optimal procedure are stable,small in size,with good dispersion and are feasible to enter into cells for rendering certain magnetic properties.This study has provided a good foundation and potential for further research.%目的 确定葡聚糖修饰的SPIO纳米颗粒最佳工艺条件并对其质量进行评价.方法 利用影响SPIO纳米颗粒粒径的4因素(溶液pH值、葡聚糖浓度、反应温度、搅拌速度)3水平正交实验设计,得出SPIO纳米颗粒的最佳制备工艺条件,并在该条件下制备SPIO纳米颗粒样品,分别用透射电镜、粒度分析仪对其进行形貌观察及粒径检测,用原子吸收光谱仪测定其铁含量,红外光谱仪分析表征,X射线粉末衍射法进行成分鉴定,振动样品磁强计测定磁学参数,并用其标记SKOV3卵巢癌细胞,验证其磁学性质.结果 制备葡聚糖修饰SPIO纳米颗粒的最佳工艺条件为:葡聚糖浓度10mg/ml,反应溶液pH值10,反应温度80°C,搅拌速度600 r/min.制备的SPIO纳米颗粒呈球形,分布较均匀,大小较一致,平均粒径7.0 nm,铁含量(12.36±0.08) g/L;红外光谱分析示样品外成功包裹葡聚糖,样品成分为Fe3O4,有超顺磁性;可进入待标记细胞,并使细胞带有磁性.结论 最佳工艺条件下制备的葡聚糖修饰SPIO纳米颗粒性质稳定、粒径较小、分散性较好,能顺利进入待标记细胞并使细胞具有一定磁性,为后续研究奠定了良好基础.
    • 文哲; 童冠圣; 刘勇; 刘璐; 沈文彬; 常鲲; 崔力方; 孙明研; 陈道桢
    • 摘要: Objective To investigate the image classification and diagnostic value of 99Tcm-DX lymphoscintigraphy in intestinal lymphangiectasia (IL).Methods A total of 68 patients (the study group) with clinical suspicion of IL from June 2007 to September 2012 were retrospectively analyzed.Using a stratified sampling method,60 patients with lower limb lymphedema or chylous ascites (the control group) were selected by age-and gender-matched with the study group.All patients underwent 99Tcm-DX lymphoscintigraphy.The lymphoscintigraphic findings were classified according to the imaging characteristics in abdomen.The intestinal tract could be shown on the images of 99Tcm-DX lymphoscintigraphy was the diagnostic standard of IL.Results According to the histopathology results,60 cases of the study group were finally diagnosed as IL and 8 cases were excluded.Five patterns of 99Tcm-DX images in abdomen were classified as following:pattern Ⅰ,consecutive visualization of intestine; pattern Ⅱ,delayed visualization of intestine; pattern Ⅲ,accumulation in ascites ; pattern Ⅳ,hybrid; pattern Ⅴ,negative results.The cases of Ⅰ,Ⅱ,Ⅲ,ⅣandⅤin the study group and control group were 19 vs 0,17 vs 4,11 vs 13,6 vs 0 and 7 vs 43,respectively.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of 99Tc m-DX lymphoscintigraphy in diagnosing IL were 70.0% (42/60),94.1% (64/68),82.8 % (106/128),91.3%(42/46) and 78.0%(64/82),respectively.Conclusions 99Tcm-DX lymphoscintigraphy may be an important diagnostic method for IL,and the visualization of intestine is an important evidence for the diagnosis of IL.%目的 探讨小肠淋巴管扩张症(IL)患者99Tcm-DX淋巴显像的腹部影像分型及其诊断价值.方法 选择2007年6月至2012年9月临床疑诊IL的68例患者作为研究组,通过分层随机方法选取同期年龄、性别与研究组相匹配的60例下肢淋巴水肿或乳糜腹腔积液的患者作为对照组.2组患者均行99Tcm-DX淋巴显像,对患者的腹部影像特征进行分型.以肠道显影作为IL阳性诊断标准,根据病理检查或胶囊肠镜的最终诊断评价99Tcm-DX淋巴显像的诊断效能.结果 68例患者中有60例患者确诊为IL.99Tcm-DX腹部影像可分为5型:Ⅰ型,肠道动态显影型;Ⅱ型,肠道延迟显影型;Ⅲ型,腹腔积液显影型;Ⅳ型,混合型;Ⅴ型,腹部显影阴性型.研究组和对照组符合Ⅰ、Ⅱ、Ⅲ、Ⅳ和Ⅴ型表现的病例数分别为19和0、17和4、11和13、6和0以及7和43.在全部128例受试者中,99Tcm-DX淋巴显像诊断IL的灵敏度为70.0% (42/60),特异性为94.1%(64/68),阳性预测值为91.3%(42/46),阴性预测值为78.0% (64/82),准确性为82.8% (106/128).结论 99Tcm-DX显像可以作为临床诊断IL的重要手段,肠道显影是其重要的诊断依据.
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