自体骨髓移植治疗股骨头无菌性坏死

Objective To investigate the effectiveness and mechanism of transplantation of autol-ogous bone marrow in treating femoral head necrosis. Methods Sixty New Zealand rabbits were randomly divided into groups A,B,and C after establishment of the models of femoral head necrosis. The left femoral head served as the control one,and the right as the experimental group. The mitoxantrone (0.1 mg/kg) with the help of DSA was injected into the femoral head of group A. One ml autologous bone marrow was injected into the femoral head of group B. In group C,mitoxantrone (0. 1 mg/kg) was injected,and 72 h later,1 ml autologous bone marrow was injected. Four months later,all rabbits were killed,and the femoral heads were removed and observed histologically and electron microscopically. Results The number of necrotic osteoclasts in groups A and B showed no significant difference ( P > 0.05 ), ande in group C, the number of necrotic femoral heads at the left and fight sides was 40. 60±4.11 and 21.33±2.16 respec-tively ( P < 0.05 ). At the experimental side of group C, the structure of majority bone cells was clear and intact,and necrosis was occasionally seen. Conclusion At the cellular level, local chemotherapy and au-tologous hematopoietic stem cell transplantation had certain effectiveness for aseptic necrosis of the femoral head.     

乳腺外帕杰氏病的整形手术治疗与护理

5目的：总结6例乳腺外帕杰氏病的术前术后护理要点减少因护理不当、观察不及时造成的并发症。方法：手术切除病变部位邻近皮瓣转移修复创面；术前肠道准备；术后严密观察皮瓣血循环，早期发现皮瓣血循环障碍征象及皮瓣下血肿。结果：6例患者无1例皮瓣坏死，功能及外形满意。     

自体骨髓移植治疗股骨头无菌性坏死

Objective To investigate the effectiveness and mechanism of transplantation of autol-ogous bone marrow in treating femoral head necrosis. Methods Sixty New Zealand rabbits were randomly divided into groups A,B,and C after establishment of the models of femoral head necrosis. The left femoral head served as the control one,and the right as the experimental group. The mitoxantrone (0.1 mg/kg) with the help of DSA was injected into the femoral head of group A. One ml autologous bone marrow was injected into the femoral head of group B. In group C,mitoxantrone (0. 1 mg/kg) was injected,and 72 h later,1 ml autologous bone marrow was injected. Four months later,all rabbits were killed,and the femoral heads were removed and observed histologically and electron microscopically. Results The number of necrotic osteoclasts in groups A and B showed no significant difference ( P > 0.05 ), ande in group C, the number of necrotic femoral heads at the left and fight sides was 40. 60±4.11 and 21.33±2.16 respec-tively ( P < 0.05 ). At the experimental side of group C, the structure of majority bone cells was clear and intact,and necrosis was occasionally seen. Conclusion At the cellular level, local chemotherapy and au-tologous hematopoietic stem cell transplantation had certain effectiveness for aseptic necrosis of the femoral head.     

血清中罗红霉素浓度反相高效液相色谱测定法的改进

目的　对测定血清中罗红霉素浓度的高效液相色谱法进行改进。方法　其改进要点是 :采用Penom enex L una C1 8分析柱 (5 μm,15 0 m m× 4.6 m m) ,以乙腈 -甲醇 - 0 .0 5 m ol/ L 磷酸 (39∶ 19∶ 42 ,用氨水调 p H至7.2 )为流动相 ,克拉霉素作内标。血清样品碱化后用二氯甲烷提取浓集 ,再经进一步纯化后进样 ,在 2 10 nm波长处检测 ,按内标法定量。结果　本法与原方法的标准曲线线性范围分别为 0 .2 5～ 32 mg/ L 和 0 .2 5～ 16 m g/ L,最低检出量分别为 5 ng和 2 0 ng,罗红霉素保留时间分别为 5 .0分钟和 13.2 7分钟 ,日内 RSD小于 2 .5 %和 7.5 % ,日间RSD小于 3.0 %和 5 .5 % ,萃取回收率和方法回收率一致。结论　本法与原法相比具有快速简便、灵敏准确等优点     

血浆中萘丁美酮活性代谢物的反相高效液相色谱法测定

为研究萘丁美酮的相对生物利用度,建立了用反相高效液相色谱法测定血浆中萘丁美酮的活性代谢物６－甲氧基－２－萘乙酸（ＭＮＡ）浓度的方法。实验结果表明,以萘普生作内标,甲醇∶０．０２ｍ ｏｌ／Ｌ醋酸盐缓冲液（ｐＨ３．０）为７４∶２６ 作流动相,用ＹＷＧ－Ｃ１８ 柱有良好的分离效果;血浆样品在ｐＨ３．０醋酸盐缓冲液存在下,用二氯甲烷萃取,回收率高,在２７０ｎｍ 波长下检测杂质峰少。该法标准曲线在０．５～６４ｍ ｇ／Ｌ范围内有良好线性,最低检测浓度为０．０２ｍ ｇ／Ｌ,萃取回收率为８８％ ～９４％ ,方法回收率为９６％ ～１０２％ ,日内相对标准差小于３．５％ ,日间相对标准差小于５％ 。具有快速简便,灵敏准确等特点,适用于萘丁美酮血药浓度测定及药代动力学和生物利用度研究用     

反相高效液相色谱法测定血浆中多奈哌齐浓度

 目的建立反相高效液相色谱法测定人血浆中多奈哌齐浓度。方法采用美国Waters公司680型高效液相色谱仪,486紫外可变波长检测器,YMC-PackODS(150mm×3.9mm,5μm)色谱柱，柱温62℃，以CH-3OH-0.01mol·L^-1NH4H2PO4=65∶35(pH7.50)为流动相，甲泼尼龙做内标，在314nm波长处检测。结果标准曲线线性范围1.00～20.00μg·L^-1；萃取回收率71.6%～76.0%；加样回收率99.8%～108.9%；日内RSD为2.7%～10.3%，日间RSD为1.8%～9.9%。结论本方法快速、灵敏、准确、简便，可用于多奈哌齐血药浓度测定和药动学及生物利用度研究。     

反相高效液相色谱法测定血浆中的帕珠沙星

目的:建立反相高效液相色谱法测定人血浆中帕珠沙星浓度,用于帕珠沙星人体药动学研究.方法:采用YMC C18(150 mm×4.6 mm,5 μm)色谱柱,柱温为35℃,流动相为乙腈-0.025 mol·L-1醋酸钠(醋酸调pH 2.6)(13:87),流速为1 mL·min-1.以盐酸芦氟沙星为内标,检测波长249 nm.结果:标准曲线线性范围78.125～2 000μg·mL-1;萃取回收率66.76%～72.76%;方法回收率97.85%～110.9%;日内RSD在5.1%～9.9%;日间RSD在4.8%～6.2%.结论:本方法快速、灵敏、准确、简便,适用于帕珠沙星血药浓度测定及药动学研究.     

中药对间充质干细胞分化为神经细胞干预作用的研究

骨髓间充质干细胞(mesenchymal stem cells,MSCs)具有在体内及体外向神经细胞分化的潜能,为多种神经系统疾病的细胞治疗提供了新的思路.因间充质干细胞具有取材方便,易于在体外分离、培养和扩增,自体取材不存在排异反应等优点,使间充质干细胞用于神经系统疾病的治疗具有更大的优势.开展中药定向诱导间充质干细胞向神经细胞分化研究,可望为今后临床神经细胞移植提供安全有效的诱导分化剂,也可为中医药在间充质干细胞领域的应用开辟新的途径.     

枸橼酸莫沙必利分散片在健康人体的相对生物利用度

目的 研究两种枸橼酸莫沙必利分散片的生物等效性。方法 22例健康受试者随机交叉、单剂口服试验与参比枸橼酸莫沙必利分散片各10 mg,用HPLc法测定血浆中莫沙必利的药物浓度,计算两制剂的药代动力学参数及相对生物利用度,并进行生物等效性评价。结果 试验与参比枸橼酸莫沙必利分散片AUC0-t分别为117.64 36.88,113.33±41.11μg·h·L-1,Cmax分别为67.27±27.27,62.67±25.68μg·L-1,tmax分别为0.50±O.23,0.75±0.31 h。枸橼酸莫沙比利分散片的相对生物利用度为(107.6±24.7)％。结论两制剂具有生物等效性,但试验药枸橼酸莫沙必利分散片达峰更快。     

以多浆膜腔积液为表现的结节病1例报道并文献复习

结节病是多器官损害的一种疾病,其病因未明.本病例以胸腔积液为首发症状,同时合并有腹腔积液及浅表淋巴结肿大.国内外文献报道罕见.患者女,66岁.因间歇性咳嗽、咳痰5个月伴上腹部胀痛2个月余,在外院行抗炎治疗效果欠佳,来我院就诊.