体外培养骨髓单个核细胞分泌促血管生长因子的实验研究

目的分析体外培养的骨髓单个核细胞持续分泌促血管生长因子的能力。方法从大鼠胫骨及股骨采集骨髓,密度梯度离心法分离出骨髓单个核细胞进行体外培养,并连续收集4周培养上清液。酶联免疫吸附实验(ELISA)法测定培养上清液中碱性成纤维细胞生长因子(bFGF)、血管内皮细胞生长因子(VEGF)和白介素-1β(IL-1β)等因子水平。结果第1、2、3、4周骨髓单个核细胞体外培养上清液中VEGF分别为(24.40±7.99)pg/m、l(89.28±5.13)pg/m、l(115.24±10.08)pg/m、l(157.00±15.64)pg/m l;bFGF含量分别为(52.72±2.13)pg/m、l(48.10±6.41)pg/m、l(44.71±3.21)pg/m、l(25.61±2.42)pg/m l;IL-1β含量分别为:(31.28±5.44)pg/m、l(71.87±3.01)pg/m、l(55.77±11.94)pg/m、l(41.75±9.14)pg/m。l结论体外培养骨髓单个核细胞可持续分泌VEGF、bFGF、IL-1β等多种促血管生长因子。     

关节镜在儿童髋关节疾患中的应用

目的探讨关节镜在诊断和治疗儿童髋关节疾患中的应用价值。方法对24例(36髋)儿童髋关节疾患进行关节镜手术。先天性髋关节脱位12例(20髋)在关节镜下行真臼清理、关节囊修整,直视下引导复位术;股骨头骨骺缺血性坏死8例(12髋)在关节镜监视下行钻孔减压和滑膜刨削清理术;化脓性髋关节炎4例(4髋)在关节镜下行清创、灌洗、引流术。结果所有病例均获随访,随访时间8~44个月。12例先天性髋关节脱位均获成功治疗,术后再脱位1例,经手法整复复位。无1例出现股骨头骨骺缺血性坏死、髋关节运动受限或关节僵硬等并发症。股骨头骨骺缺血性坏死和化脓性髋关节炎12例术后疼痛消失,关节活动范围恢复正常。结论关节镜对儿童髋关节疾患具有重要的诊断和治疗价值。     

有机相脂肪酶催化合成技术在食品及相关领域的应用

对有机相脂肪酶催化合成技术的研究及其在食品、化妆品、医药、精细化工领域的应用进行了综述，表明有机相脂肪酶催化合成技术具有直接利用底物、反应条件温和、反应选择性高、产品容易分离纯化、产品具有绿色环保概念等优点。     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

饮食因素与肠道微生态的研究进展

微生态学是20世纪兴起的一门生命学科，它是从健康水平研究微生物之间与环境和宿主之间相互依存、相互制约规律的科学。饮食因素对维持肠道微生态的平衡起着重要的作用。本文就肠道菌群与人体健康、饮食因素对肠道菌群的影响以及对菌群失调的调节作用作一综述。     

不伴Ⅱb型多发性内分泌肿瘤综合征的咽喉部多发性黏膜神经瘤一例

不伴Ⅱb型多发性内分泌肿瘤综合征(multiple endocrine neoplazia Ⅱb，MENⅡb)的多发性黏膜神经瘤(multiple mucosal neuroma，MMN)甚为罕见，现有文献仅见5例报道，病变分别位于结膜、支气管、舌、直肠乙状结肠和喉部。我们收治1例不伴MENⅡb的咽喉部MMN，报道如下。     

多层螺旋CT血管成像在支气管动脉灌注化疗前的定位价值

目的探讨多层螺旋CT血管成像(MSCTA)在支气管动脉(BA)灌注化疗前的定位价值。方法分析15例经支气管动脉介入治疗前的的肺癌病例,中央型13例,周围型2例。15例均行螺旋CT增强扫描,后传至工作站利用多平面重组(MPR)、最大密度投影(MIP)和容积再现(VR)等后处理技术观察支气管动脉。结果13例中央型肺癌均由肿瘤性支气管动脉供血,重建图像清晰显示肿瘤性支气管动脉的起点、分支情况及走行特点;其中2例右侧肿瘤性支气管动脉与肋间动脉共干。2例周围型肺癌中有1例由肿瘤性支气管动脉供血,1例找不到明确发自支气管动脉的供血血管。结论多层螺旋CT血管成像能够显示肺癌特别是中央型肺癌的肿瘤性支气管动脉并能为经支气管动脉灌注化疗提供准确定位。     

寰枢椎椎弓根内固定技术的解剖学与临床研究进展

1910年,Mixter等[1]用丝线固定寰椎后弓和枢椎棘突,开创了寰枢椎内固定技术的先河.此后,学者们创建了一系列寰枢椎内固定技术,按入路分为前路技术和后路技术.     

无神经症状寰枢椎骨折的非手术治疗

目的探讨无神经症状寰枢椎骨折患者的非手术治疗效果。方法7例无神经症状的寰枢椎骨折患者行牵引后,再行头颈胸石膏或颈托外固定,其中1例枢椎椎体骨折患者仅行颈托外固定。结果随访3-8个月,所有患者骨折均临床愈合,枕颈部痛均消失,颈椎活动范围轻度减小。结论对无神经症状的寰枢椎骨折患者进行选择性非手术治疗是一种安全、有效的方法,适合在基层医院开展。     

通心络胶囊对冠状动脉扩张症的治疗价值

目的评价通心络胶囊对冠状动脉扩张症(CE)患者的治疗效果。方法将38例冠状动脉造影证实为冠状动脉扩张症的心绞痛患者随机分为硝酸异山梨酯和通心络两组,疗程6个月,观察对心绞痛发作及运动平板试验的影响。结果治疗后,通心络组总有效率90.0%,硝酸异山梨酯组总有效率33.3%,两组比较差异显著(P<0.05)。结论通心络胶囊在冠状动脉扩张症患者的治疗中可以明显缓解心绞痛,改善运动平板试验结果,是治疗冠状动脉扩张症患者的有效药物。