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血卟啉

血卟啉的相关文献在1982年到2022年内共计221篇,主要集中在肿瘤学、药学、化学 等领域,其中期刊论文178篇、会议论文6篇、专利文献2258篇;相关期刊114种,包括激光生物学报、中国生物医学工程学报、中国超声医学杂志等; 相关会议6种,包括第十届全国超声医学学术会议、第一届南方超声造影新技术临床应用研讨会、重庆市第四届超声医学学术年会等;血卟啉的相关文献由530位作者贡献,包括刘全宏、齐浩、何义富等。

血卟啉—发文量

期刊论文>

论文:178 占比:7.29%

会议论文>

论文:6 占比:0.25%

专利文献>

论文:2258 占比:92.47%

总计:2442篇

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血卟啉

-研究学者

  • 刘全宏
  • 齐浩
  • 何义富
  • 何静
  • 刘亚贝
  • 刘彤彤
  • 刘淼
  • 吴旸
  • 孙瑾
  • 张腾跃
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 余惠文; 晏勇; 陈希林; 范惠珍; 易梦
    • 摘要: 目的研究皮肤癌患者采用血卟啉光动力技术实施治疗的临床效果。方法选择在我院接受治疗的60例皮肤癌患者,采用随机分组的方式将其分成对照组和治疗组,平均每组30例。对照组采用传统刮除术、电干燥、手术、放疗等方式进行治疗;治疗组采用血卟啉光动力技术实施治疗。对比两组病情控制总有效率、不良反应情况、治疗前后疼痛程度、皮肤创伤面积、睡眠质量、生活质量评分、皮肤状态复常和住院总时间。结果治疗组患者病情控制总有效率高于对照组,组间数据比较P<0.05;不良反应少于对照组,组间数据比较P<0.05;治疗前后疼痛程度、皮肤创伤面积、睡眠质量、生活质量评分的改善幅度大于对照组,组间数据比较P<0.05;皮肤状态复常和住院总时间短于对照组,组间数据比较P<0.05。结论皮肤癌患者采用血卟啉光动力技术实施治疗,能够大幅度减小皮肤创伤面积,减少不良反应,帮助控制疼痛,改善睡眠质量和生活质量,缩短皮肤状态复常和住院总时间,使病情控制总有效率提高。
    • 秦悦; 屠春来
    • 摘要: 聚乙二醇选择性接枝的血卟啉衍生物(HP-diPEG),经过相转移和配体交换,通过配位作用的方式紧密包裹尺寸均一的稀土上转换纳米棒(UCNRs),制备了一类基于发光共振能量转移的近红外光敏剂体系.采用透射电镜 、X射线衍射仪和核磁共振表征了其结构和形貌,利用紫外吸收光谱和荧光光谱研究了其光学性能.结果表明:在980 nm的近红外光照射下,UCNRs和HP-diPEG之间产生了高效的发光共振能量转移,激发了血卟啉的荧光,并生成单线态氧.
    • 黄修友; 胡炳成; 徐士超; 胡田菁
    • 摘要: 以氯化血红素(1)为原料,经过加成和取代反应制得血卟啉(2)。然后在超声波激励下,以血卟啉(2)作为原料,浓硫酸作为催化剂,甲醇既作溶剂又作反应剂,合成了[2,7,12,18-四甲基-3,8-(-1-羟基乙基)-13,17-二甲氧基羰基乙基]-卟啉(血卟啉二甲酯,3),两步反应总产率达到74.8%。探讨了反应时间、催化剂用量以及超声功率对血卟啉二甲酯(3)合成的影响,并且将超声波激励法与加热搅拌法进行了比较。实验结果表明,同加热搅拌法相比,超声激励法反应时间更短,产率更高,副产物更少。产物结构通过1 H NMR、MS和IR测试技术进行了表征。
    • 张勇; 王志刚; 康娟; 冉海涛; 任建丽; 李攀
    • 摘要: Objective To explore the anti-tumor effects of lipid microbubbles loaded hematoporphyrin (LMLH) on rabbit liver VX2 tumor using ultrasound mediated target drug delivery. Methods Thirty-five New-Zealand rabbits were induced into liver VX2 tumor and randomly divided into 7 groups (each n=5), i. e. Ultrasound + LMLH group (US+LMLH), Hematoporphyrin (HP) + ultrasound group (US+HP), ultrasound + lipid microbubbles group (US+MB), LMLH a-lone group (LMLH), HP alone group (HP) , US alone group (US) and normal saline (NS) alone as control group (C). Ultrasonography, including 2D, CDFI and CEUS were applied to detect the size, echo and blood of tumor, and the tumor growth inhibiting rate was calculated. The tumors were harvested to observe in transmission electron microscope, while the intrahepatic metastasis and distant metastasis were observed. Results The tumors in US+LMLH group had mixing echo. CDFI and CEUS showed that the blood vessels obviously decreased, and the tumor growth inhibiting rate was higher in US + LMLH than in other groups. There were less metastases in US+LMLH group than in other groups. Ultramicrostruc-ture showed cellular membrane was broken, and mitochondria were obviously swell. Conclusion HP can be efficiently activated by ultrasound. This technique can inhibit tumor growth significantly in vivo.%目的 探讨超声定位辐照载血卟啉微泡介导药物靶向释放技术治疗兔VX2肝移植瘤的效果.方法 利用35只新西兰大白兔建立肝VX2移植瘤模型,并随机均分为超声定位辐照载血卟啉微泡组(US+LMLH组)、超声定位辐照血卟啉组(US+ HP组)、超声定位辐照空白脂质微泡组(US+MB组)、单纯载血卟啉微泡组(LMLH组)、单纯血卟啉组(HP组)、单纯超声辐照组(US组)和生理盐水对照组(C组).治疗前后用二维超声、CDFI及CEUS观察肿瘤大小、回声及血流灌注情况,计算肿瘤体积大小及生长抑制率;同时观察不同处理组肝内转移及远处转移情况;并用透射电镜观察肿瘤细胞的超微结构.结果 US+ LMLH组肿瘤内部呈混合回声,CDFI及超声造影显示肿瘤的滋养血管明显减少,生长抑制率高于其他各组;在肝内及远处转移方面,US+ LMLH组较少转移,明显优于其他各组;超微结构显示US+ LMLH组细胞膜破坏,线粒体明显肿胀.结论 超声定位辐照载血卟啉微泡能有效激活血卟啉,具有较强的体内抑瘤效果.
    • 于钟; 钟娃; 袁宇红; 陈其奎; 朱兆华; 张晋昕
    • 摘要: 目的:研究光敏剂血卟啉的光动力作用对人胰腺癌细胞Panc-1的体外杀伤效应及其主要机制.方法:将光敏剂浓度和光照剂量2个因素按不同水平分组,以CCK-8实验的吸光度值为检测指标并转换为细胞存活率,研究这2个因素对光动力作用的影响及其规律.在此基础上,先后以荧光显微镜、流式细胞仪、Western blotting测定这一过程中细胞内活性氧的水平、细胞坏死及凋亡比率以及caspase-3蛋白的表达,探讨光动力作用的主要机制.结果:随着光敏剂浓度和光照剂量的增加,光动力治疗(PDT)后Panc-1细胞存活率相应下降,并分别在光敏剂浓度10 mg/L、光照剂量20 J/cm2达到最大杀伤效应.光敏剂浓度和光照剂量之间对降低细胞存活率有协同作用.单独给予光敏剂和光照均不对细胞存活率产生影响.PDT作用可使 Panc-1细胞内产生活性氧,并随光敏剂浓度和光照剂量的增加而增多.PDT后细胞出现凋亡和坏死,二者比例随光敏剂浓度和光照剂量的增加而增加,但始终表现为凋亡率>坏死率.PDT使细胞内caspase-3表达增强,并随光敏剂浓度和光照剂量的增加而增加.结论:血卟啉光动力治疗对人胰腺癌细胞株Panc-1具有明确的杀伤作用,但是光敏剂和激光照射本身并不具有独立的杀伤效应.光敏剂浓度和光照剂量2个影响因素在一定范围内与PDT效应之间呈正相关的关系,二者之间存在协同作用.PDT的作用机制主要在于其产生的各种活性氧成分,通过各种途径激活caspase-3,最终导致细胞凋亡.%AIM: To study the killing effect of photodynamic therapy ( PDT ) with hematoporphrin on human pancreatic cancer cell line Panc -1 in vitro.METHODS: The Panc - 1 cells were divided into several groups according to the concentrations of photosensitizer and light doses to which the cells were exposed.The absorbance values of CCK - 8 test were used as the detection index and were converted to cell survival.To study the main mechanism of PDT, the ROS production, the apoptotic rate and necrotic rate, and the expression of activated caspase -3 in the cells were measured by fluorescence microscopy, flow cytometry and Western blotting, respectively.RESULTS: With the concentration of photosensitizer and light dose increased, the survival rates of Panc - 1 cells accordingly decreased, and the killing effect of PDT reached the maximum when the concentration of photosensitizer was 10 mg/L and the light dose was 20 J/cm2.The synergistic effect between concentration of photosensitizer and light dose was observed.Using photosensitizer or light alone had no PDT effect.Exposure to photosensitizer and light induced ROS production and caused apoptosis and necrosis in Panc-1 cells in a concentration - dependent manner, and the rate of apoptosis was always higher than the rate of necrosis.PDT also increased the expression of activated caspase - 3 in Panc - 1 cells in a concentration - dependent manner.CONCLUSION : PDT with hematoporphyrin has killing effect on human pancreatic cancer cell line Panc - 1 by producing ROS, activating caspase - 3 and inducing apoptosis and necrosis in a concentration - dependent manner.The concentration of photosensitizer and light dose show synergistic effect on killing the cancer cells.
    • 刘夏铭; 李娜; 刘红利; 王可嘉
    • 摘要: 目的 探讨基于太赫兹谱测定人体血液中卟啉含量的可行性.方法 合成了3种卟啉化合物,用太赫兹时域频谱系统测量了它们的太赫兹透射谱.结果 卟啉化合物在0.1~1 THz频率范围内有较为丰富的吸收峰.结论 基于太赫兹谱检测卟啉从原理上讲是可行的.
    • 苏晓敏; 王元; 朱波; 王筱冰; 王攀; 刘全宏
    • 摘要: 在不同温度下,用浓度分别为10μmol/L、20 μmol/L、40μmol/L的血卟啉孵育L1210和S180肿瘤细胞,通过荧光分光光度法检测血卟啉在L1210及S180肿瘤细胞内的富集以及温度对其的影响,激光共聚焦扫描显微镜观察血卟啉的亚细胞定位.结果表明,随着孵育浓度的增加和孵育时间的延长,肿瘤细胞对血卟啉的吸收也相应增加,60~120 min细胞内血卟啉含量最高;不同温度也会影响细胞对血卟啉的吸收,37C为最适孵育温度.%It have been investigated that hematoporphyrins were retained in L1210 and S180,respeceively. The cells were incubated with hematoporphyrin ( HpD) at 10μmol/L,20μmol/L,40μmol/L concentrations and different temperatures. The intracellular HpD concentration and the effect imposed by temperature were measured by the fluorescence photometer, and laser scanning confocal microscope was used to study the subcellular location pattern of HpD. The results showed that the intracellular concentration of HpD increased with the increasing of HpD and incubated time,the intracellular concentration was highest in 60~120 min; the absorption of HpD could also be influenced by temperature, and 37 °C is the most suitable incubation temperature.
    • 刘会领; 罗雁; 邹满意; 梅玫; 陆伟
    • 摘要: 目的:观察在不同照射强度下血卟啉介导的光动力疗法(PDT)治疗鼠幽门螺旋杆菌(Hp)相关性胃炎的疗效.方法:制备Hp相关性胃炎动物模型,分为A1和A2组,应用血卟啉衍生物(HpD)进行灌胃,C组(感染对照组),应用等量的生理盐水灌胃;3个感染组按顺序(A1,A2,C)均给予波长630nm输出功率分别为50、100、100 mW/cm2经灌胃器照射,能量密度累积15 J/cm2,非感染对照组(D组)未经PDT照射.照射后4周,处死所有小鼠,取胃窦和胃体部组织,行快速尿素酶试验和改良吉姆萨染色及H-E病理染色.结果:经PDT处理后,结合快速尿素酶试验和改良吉姆萨染色结果显示A2组Hp阴性率为73.33%(P<0.05).H-E病理染色显示各感染组经PDT治疗后炎症明显减轻,非感染组经PDT治疗后可见轻微炎症反应.结论:PDT能明显减轻Hp相关性胃炎的炎症程度,并可杀灭Hp,不损伤正常胃黏膜.%Objective To evaluate empirical efficiency of the photodynamic therapy on mouse helicobacter pylori assiociated gastritis medicated by PDT in different intensity of the light. Methods Prepared animal models: A1.A2 and C, 2 groups received HPD (A1NA2) and infected group C as control group, another group (D) was non-infected(n = 15 in each group). Group C and D were given normal saline, The three groups(A 1,A2,C) were illuminated with 630 nm light, respectively the power was 50,100., 100 mW/cm2,the power density is up to 15 J/ cm2, all animals were killed after 4 weeks, the tissue of the body and antrum of stomach was taken . Fast urease test, improved Geimsa stain and H-E stain were performed. Results Geimsa showed the negative ratio of Hp reached 80% ,the negative ratio of group A2 was 73.33% combining the results of fast urease test with that of improved Geimsa stain, H-E stain suggested that inflammation of all infected groups were relieved after PDT, there were only mild inflammation in non-infected groups and no ulcer was found. Conclusion Gastritis associated with helicobacter pylori could be relieved and helicobacter pylori can be eradicated and normal gastric mucosa no damaged by PDT in proper intensity of light.
    • 徐士超; 胡炳成; 崔巧利; 周维友; 罗海滔; 刘祖亮
    • 摘要: 以氯化血红素(Ⅰ)为原料,经过溴化氢-冰醋酸加成反应、羟基亲核取代反应和无水氯化氢催化酯化反应制得3,8-双-(1-羟基乙基)次卟啉二甲酯(Ⅲ),然后通过琼斯试剂氧化反应制备了3,8-双乙酰基次卟啉二甲酯(Ⅳ).考察了血红素与溴化氢-冰醋酸饱和溶液反应过程中温度和时间对3,8-双-(1-羟基乙基)次卟啉二甲酯(Ⅲ)产率的影响;改进了酯化反应的实验条件;选用了廉价易得、选择性较好的羟基选择性氧化剂.实验结果表明,当反应温度为35°C、反应时间为25 h时,血卟啉(Ⅱ)的产率最高,为98.5%;当催化剂为无水氯化氢时产物(Ⅲ)的产率最高,为72.1%;使用琼斯试剂做氧化剂使实验成本大大降低.通过1H NMR、MS和IR测试技术对产物结构进行了表征.%3,8-Bis-( 1-hydroxyethyl) deuteroporphyrin dimethyl ester( Ⅲ ) was prepared from hemin(Ⅰ) by the ways of HBr-H3CCOOH addition reaction, 0H~ nucleophilic substitution reaction and anhydrous hydrogen chloride catalyzed esterification. It was then oxidized by Jones reagent to form 3 ,8-bisacetyl deuteroporphyrin dimethyl ester( Ⅳ) . The effects of reaction temperature and reaction time on the yield of 3 ,8-bis-( 1-hydroxyethyl ) deuteroporphyrin dimethyl ester ( Ⅱ) were studied. The conditions of esterification reaction were modified. A cheaper and selective oxidant was used in the synthesization of 3,8-bisacetyl deuteroporphyrin dimethyl ester ( Ⅳ ) . The results showed that the yield of hematoporphyrin ( Ⅱ ) reaches to the highest of 98. 5% when the temperature is 35 °C and the reaction time is 25 h. The yield of hematoporphyrin dimethyl ester is 72. 1% when the catalyst is anhydrous hydrogen chloride. The cost of 3 ,8-bisacetyl deuteroporphyrin dimethyl ester (Ⅳ ) was decreased greatly when the oxidant is Jones reagent. The target products were characterized with 1H NMR, IR and MS.
    • 雍政; 何冰; 王萧
    • 摘要: 【目的】研究激光和血卟啉对肿瘤细胞的杀伤特点。【方法】体外应用K562和MCF7细胞观察不同浓度血卟啉和不同激光强度对细胞的杀伤特点及其激光束杀伤细胞的分布特性;体外培养S180肉瘤细胞接种健康小鼠建立荷瘤小鼠模型,观察静脉注射血卟啉0.5和12 h后激光照射对肿瘤的杀伤作用。【结果】在固定的血卟啉浓度或激光强度下,随着激光强度或血卟啉浓度的增加,对肿瘤细胞的杀伤作用成线性作用增强(R2=0.9967,R2=0.9994),其中杀伤作用=血卟啉浓度(μg/ml)×激光能量(J);激光束对细胞的杀伤作用存在明显的不均匀性;荷瘤小鼠在给药后0.5 h给与激光治疗效果好于给药后12 h。【结论】血卟啉浓度和激光剂量对肿瘤的杀伤作用存在线性量效关系且激光束对细胞杀伤作用存在明显的不均匀性,该结果为制定最佳的临床治疗方案提供了依据。
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