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71.
自体外周血造血干细胞和自体骨髓移植治疗急性髓性白血病的临床疗效比较研究 总被引:4,自引:0,他引:4
目的:比较自体外周血干细胞移植(APBSCT)与自体骨髓移植治疗CR1期急性髓性白血病(AML)的临床疗效。方法:用APBSCT治疗AML患者27例,用非净化自体骨髓移植(ABMT)治疗AML患者13例,用净化自体骨髓移植(PABMT)治疗AML患者25例。结果:(1)APBSCT组造血重建校其他两组显著加快;(2)APBSCT组的3年无病生存率(DFS)和复发率(RR)分别为51.%和42.2%,与ABMT组的46.2%、46.7%相当,但与净化ABMT组的72.9%、23.7%相比差异有显著性意义。(3)三组的移植相关死亡率(TRM)差异无显著性意义,死亡的主要原因为感染和内脏出血。结论:APBSCT治疗CR1期AML,其造血重建显著快于ABMT,其疗效与ABMT相当,而显著低于PABMT。 相似文献
72.
Shimazaki C; Wisniewski D; Scheinberg DA; Atzpodien J; Strife A; Gulati S; Fried J; Wisniewolski R; Wang CY; Clarkson BD 《Blood》1988,72(4):1248-1254
The efficacy of immunomagnetic beads to purge human myeloma cells from bone marrow ex vivo was evaluated. The optimal conditions for purging were studied first by using three myeloma cell lines: RPMI-8226, SKO- 007, and SKMM-2. Myeloma cells labeled with the vital fluorescent dye Hoechst 33342 were admixed with normal bone marrow cells, and two monoclonal antibodies reactive with the myeloma cells (PCA-1 and BL-3) were added alone or in combination with the cells. Magnetic beads coated with goat antimouse immunoglobulin G were then added, and the tumor cells to which beads were attached were separated from the mixture with a magnet. The efficacy of tumor cell removal was dependent on the bead-to-tumor ratio; a ratio of more than 500 was optimal in the presence of excess normal marrow cells. The combination of monoclonal antibodies PCA-1 and BL-3 increased the tumor cell removal as compared with either antibody alone. Two cycles of treatment were more effective than one cycle was. Under optimal conditions, 2.3 to 4 logs of tumor cells could be removed from the mixture containing 10% myeloma cells without a significant loss of normal hematopoietic progenitors as measured by CFU-GM, CFU-GEM, and BFU-E. When the efficacy of this procedure was tested on fresh bone marrow from patients with multiple myeloma (MM) by using the combination of PCA-1, BL-3, and J-5, 1.6 to 2.5 logs of tumor cells could be removed by one cycle of treatment, even from marrows containing less than 10% myeloma cells. These observations support the use of monoclonal antibody combinations and immunobeads as a reliable and nontoxic method to eliminate contaminating myeloma cells ex vivo in preparation for autologous bone marrow transplantation in patients with MM. 相似文献
73.
Oxidative metabolism of the human eosinophil 总被引:14,自引:1,他引:14
We have compared the oxidative metabolism of human eosinophils (80%-90% purity) to that of neutrophils. Hexose monophosphate (HMP) shunt activity of eosinophils was higher than that of neutrophils under either resting or phagocytizing conditions. Eosinophil HMP shunt activity also was stimulated by phorbol myristate acetate, a membrane- active agent. Eosinophils showed a marked incorporation of 125I into trichloroacetic acid-insoluble material under resting conditions, which increased markedly during phagocytosis. Eosinophils likewise showed a greater reduction of nitroblue tetrazolium dye during phagocytosis than did neutrophils. Measurement of other parameters of oxidative metabolism indicated that eosinophils generated superoxide anion following phagocytosis and also elicited a burst of chemiluminescence similar to that observed during phagocytosis by neutrophils. Measurement of NADPH oxidase activity demonstrated that this enzyme was 3-6 times more active in fractions isolated from eosinophils than in corresponding fractions isolated from neutrophils; this was observed over a range of substrate concentrations. The eosinophil enzyme sedimented differently than the neutrophil enzyme with differential centrifugation; neither showed sedimentation characteristics of peroxidase. These data indicate that eosinophils possess a similar, although in some ways more potent, oxidative burst than neutrophils and are consistent with a role for NADPH oxidase in the initiation of that burst. 相似文献
74.
Chronic granulocytic leukaemia (CGL) cells which contained a high concentration of unsaturated folate binding protein were incubated in suspension culture for a period of 5 h. Cell samples were periodically assayed for binder and these demonstrated active synthesis which was inhibited by puromycin, cyclo heximide, N-ethylmaleimide, and by incubation at 4 degrees C, but not by actinomycin D. Folate binding activity could also be demonstrated in the culture medium and this increased with the duration of incubation. This release of binder was inhibited by culturing the cells at 4 degrees C and by the addition of N-ethylmaleimide, but not by actinomycin D, puromycin, or cycloheximide. When the pre- and post-culture cell lysates were saturated with tritiated folic acid ([3H]PteGlu) and subjected to chromatography on DEAE-agrarose, approximately half of the bound folate eluted with 0.001 M phosphate buffer at pH 6.0 and the other half eluted with 0.2 M buffer at pH 7.2. The culture medium and plasma from this patient with CGL was well as serum from two normal subjects saturated with [3H]PteGlu and similarly chromatographed contained primarily the acidic binder and much less of the binder eluting with the low molarity buffer. Since a folate binding protein immunochemically similar to the binder in CGL cells has been identified in the serum of non-leukaemic subjects, these experiments suggest that the source of circulating folate binding protein may be the immature granulocyte. 相似文献
75.
76.
目的研究B超引导下臂丛神经阻滞麻醉的临床效果及安全性。方法将本院行上肢手术的90例患者随机分为对照组(n=48)和B超引导组(n=42)。对照组以盲探的方法行臂丛神经阻滞麻醉,B超引导组在B型超声仪引导下行臂丛神经阻滞麻醉。比较两组的麻醉效果。结果B超引导组感觉阻滞起效时间、麻醉药物使用剂量均优于对照组,但麻醉操作时间长于对照组(P<0.05)。B超引导组不同臂丛神经的感觉阻滞完善率均高于对照组,并发症总发生率低于对照组(P<0.05)。结论与盲探法相比,B超引导下行臂丛神经阻滞麻醉的麻醉操作时间虽然有所延长,然而麻醉效果佳,能够缩短感觉阻滞起效时间、减少麻醉药物用量,且安全性好。 相似文献
77.
目的 探讨Lafora病的临床、病理特点及诊断方法.方法 总结分析5例经腋窝皮肤活体组织检查确诊的Lafora病患者的临床和组织病理学特点.5例患者都进行了腋窝皮肤活体组织检查,常规行HE、糖原(PAS)和阿辛蓝-糖原(AB-PAS)染色.结果 5例患者中4例青少年发病,1例成年起病.所有患者均表现为进行性加重的强直阵挛发作、肌阵挛和智能损害,可早期出现性格改变,构音障碍和行走不稳.腋窝皮肤活体组织检查发现Lafora包涵体存在于大、小汗腺的肌上皮细胞和导管细胞内.结论 经皮肤活体组织检查发现PAS阳性圆形或卵圆形包涵体,结合Lafora病典型的临床表现可以确诊该病;皮肤活体组织检查的部位可选择腋窝或腋窝以外的部位. 相似文献
78.
79.
自体外周血造血干细胞联合自体骨髓移植治疗难治性淋巴瘤的临床分析 总被引:2,自引:0,他引:2
本研究通过回顾性分析自体外周造血干细胞移植、自体骨髓移植及二者联合移植在治疗难治性恶性淋巴瘤的疗效、毒副作用、造血和免疫功能恢复速度等临床方面的差异,总结归纳三种不同移植方式在治疗难治性淋巴瘤方面的优劣。68例难治性恶性淋巴瘤患者接受了大剂量放化疗结合自体造血干细胞移植治疗,其中10例患者为单一自体骨髓移植(autologous bone marrow transplantation,ABMT),46例患者为单一自体外周血造血干细胞移植(autologous peripheral blood hematopoietic stem cell transplantation,APBHSCT),12例患者为自体外周血造血干细胞联合自体骨髓移植(autologous peripheral blood hematopoietic stem cells transplantation combined with autologous bone marrow transplantation,APBHSCT+ABMT)。结果表明:ABMT、APBHSCT、APBHSCT+ABMT的治疗有效率和1、3、5年生存率分别为(90%和75%、57.1%、33.3%);(86.4%和74.4%、54.2%、38.1%);(83.3%和72.7%、55.6%、40%)。白细胞恢复时间分别为13天、11天、8天,血小板恢复时间分别为17天、14天、9天。在移植后3个月、6个月、1年时检测ABMT、APBHSCT、APBHSCT+ABMT患者T细胞亚群正常率分别为(0%、33.3%、60%),(10.8%、32%、73.9%),(27.3%、55.6%、85.7%)。结论:自体外周血造血干细胞联合自体骨髓移植与单一自体外周造血干细胞移植治疗难治性恶性淋巴瘤的临床疗效和毒副作用当,但联合造血干细胞移植(APBHSCT+ABMT)患者的造血功能恢复略快,有利于拓宽年龄偏大和造血功能受损患者移植方式的选择。 相似文献
80.
社区护理人员开展健康教育的调查分析 总被引:1,自引:1,他引:1
目的 通过了解新疆石河子市社区卫生服务机构护理人员开展健康教育的现状,分析影响因素,为社区护士科学有效地开展健康教育提供依据.方法 采用问卷调查,对本市社区卫生服务机构的151名护理人员进行了调查.结果 社区护士普遍开展了健康教育,主要是通过健康咨询的方式宣传健康的生活方式和慢性病的防治知识,护士在健康教育过程中面临的最大困难依次是缺少资金、社区居民观念跟不上和缺少社区护士.结论 社区健康教育的对象主要为服务站的就诊者,内容和形式单一,且不够深入,社区护士缺乏健康教育的理论与技能,在健康教育与健康促进方面没有发挥应有的作用,应引起社区护理管理者的重视,制定切实可行的措施,发挥社区护士在健康教育中的作用. 相似文献