抗人大肠癌免疫磁性白蛋白微球的抗癌效果

目的:观察自制丝裂霉素C免疫磁性白蛋白微球(MMC-IMAMS)体外及体内抗大肠癌效果。方法:将丝裂霉素C免疫磁性白蛋白微球(MMC-IMAMS)与丝裂霉素C磁性白蛋白微球(MMC-MAMS)、单纯丝裂霉素C(MMC)比较,MTT法分别检测其体外对大肠癌细胞株LoVo的杀伤作用,然后通过移植人大肠癌裸鼠模型检测体内的肿瘤抑制率。结果:体外实验丝裂霉素免疫磁性白蛋白微球较单纯丝裂霉素磁性白蛋白微球有更强的肿瘤细胞抑制效率;裸鼠模型体内实验丝裂霉素免疫磁性白蛋白微球组肿瘤抑制率较丝裂霉素磁性白蛋白微球组和单纯丝裂霉素组具有显著差异。且丝裂霉素免疫磁性白蛋白微球是安全的,在体外磁场作用下可较长时间内沉积于靶区。结论:丝裂霉素免疫磁性白蛋白微球安全性好,靶向性更强大,体内体外均有更强的抗癌效果。     

抗癌药阿霉素磁性蛋白微球的制备及其细胞毒试验

利用加热固化蛋白质原理制备出阿霉素磁性蛋白微球，比色法分析其细胞毒作用。结果显示阿霉素磁性蛋白微球具有磁性药物微球的形态学特征， 体外抑制肿瘤细胞生长的能力与阿霉素相似 （Ｐ＞ ０．０５）， 提示阿霉素磁性蛋白微球是抗癌药物阿霉素的一种新剂型，该药物剂型的改变未影响其体外药理作用，与磁场联用发挥靶向高效低毒的抗癌作用     

5-氟尿嘧啶磁性白蛋白微球对胰腺磁靶向性实验研究

目的探讨磁导向下5-氟尿嘧啶磁性白蛋白微球对胰腺的磁靶向性。方法取Wistar大鼠12只,分为两组,一组为5-Fu组,另一组为5-氟尿嘧啶磁性白蛋白微球组;分别经供胰动脉注入5-Fu和5-氟尿嘧啶磁性白蛋白微球(按5-Fu 8mg/kg),在该组的大鼠胰腺表面加一表面强度为4250GS的磁场,30min后,取其胰腺。用HPLC法检测其药物浓度。结果5-氟尿嘧啶磁性白蛋白微球组胰腺中的药物浓度(57.95±6.39μg/ml)是5-Fu组(16.58±3.19μg/ml)的3.50倍,明显高于5-Fu组(P<0.01)。结论磁性白蛋白微球作为一种新的药物载体经供胰动脉注入后在磁导向下对胰腺具有良好的磁靶向性。     

As2O3磁性Fe3O4白蛋白微球的制备与表征

目的 :制备用于肿瘤热化疗和逆转多药耐药的As2O3磁性Fe3O4白蛋白微球并表征。方法:化学共沉淀法制备Fe3O4磁性纳米粒,运用透射电镜、X射线衍射分析进行表征,溶血实验及MTT试验进行毒理学评定。去溶剂化交联法制备As2O3磁性Fe3O4白蛋白微球,运用透射电镜和能谱仪进行表征,在交变磁场作用下进行体外升温试验,体外释药方法研究其释药速率。结果:Fe3O4磁性纳米粒近似球形,粒径约20 nm,无溶血作用,细胞毒性为1级。As2O3磁性Fe3O4白蛋白微球近似球形,大小均匀,粒径约193.4 nm,其不同浓度的磁流体在交变磁场下可升温至39.5~58.0℃并保持恒定。体外释药实验证实As2O3磁性Fe3O4白蛋白微球具有明显的缓释功能。结论:Fe3O4磁性纳米粒作为药物载体具有良好的生物相容性。用去溶剂化交联法可以成功制备出As2O3磁性Fe3O4白蛋白微球,As2O3磁性Fe3O4白蛋白微球释药速率缓慢,为研究肿瘤热化疗和逆转多药耐药提供理论和实验基础。     

纳米磁性靶向药囊对人肝癌裸鼠移植瘤bcl-2/bax蛋白表达的影响

目的观察纳米磁性5-Fu药囊靶向治疗人肝癌裸鼠移植瘤对肿瘤细胞凋亡bcl-2及bax蛋白表达的影响。方法透射电镜观察各组移植瘤形态学特征，免疫组化SABC法测定bcl-2和bax蛋白表达水平。结果电镜观察可见B组（5-Fu）和D组（纳米磁性5-Fu药囊加内磁场）肿瘤组织大量癌细胞凋亡。B和D组bcl-2蛋白表达水平低于A组（生理盐水对照）、C组（纳米磁性5-Fu药囊）和E组（纳米磁小体加内磁场）（P〈0．01），D组bcl-2蛋白表达水平低于B组（P〈0．01）；B组和D组bax蛋白表达水平高于其他三组（P〈0．01），D组bax蛋白表达水平高于B组（P〈0．01）。结论纳米磁性5-Fu药囊靶向治疗能够降低bcl-2蛋白表达，增加bax蛋白表达，促进人肝癌裸鼠移植瘤细胞凋亡，提高5-Fu抗肿瘤作用。     

阿司匹林磁性壳聚糖微球的制备及其性能

目的 以阿司匹林为药物模型,制备阿司匹林磁性壳聚糖微球(AMCM),研究其体外释放度与体内靶向性.方法 利用壳聚糖为骨架材料,以Fe3O4作为磁性内核,戊二醛作为交联剂,固载阿司匹林,研制AMCM,采用动态透析法及分光光度法进行体外释药实验;设定纯种兔为一靶区,外加磁场,经兔耳缘静脉注射AMCM,观察AMCM在体内分布情况,并观察外加磁场强度对微球在靶区定位的影响.结果 制备的AMCM成球性能好,无粘连,粒径1～8 μm,载药率0.922(W/W),包封率82.4%,具有显著的缓释阿司匹林作用,经外加磁场下的AMCM有较好的靶向分布性且与磁场强度相平行.结论 自制的AMCM具有显著的体外缓释与体内靶向作用.     

SiO2@Fe3O4复合纳米微球的合成及其对盐酸表柔比星的载药性能

目的: 制备新型磁性纳米微球SiO₂@Fe₃O₄,并考察其对盐酸表柔比星的载药性能。方法: 以水热法制备的Fe3O4作为核,无水乙醇和水为共溶剂,一定浓度的氨水为催化剂,通过正硅酸四乙酯（tetraethyl orthosilicate,TEOS）的水解与缩合制备SiO₂@Fe₃O₄复合纳米微球,通过X射线衍射（XRD）法、透射电子显微镜（TEM）、红外吸收光谱（FT-IR）等测试样品的物相与结构,通过外加磁场测试其磁响应性,并通过药物吸附和缓释实验检测该纳米微球对表柔比星的载药性能。结果： 当V（TEOS）=0.8 mL,V（氨水）=1.25 mL,V(水) ∶V（无水乙醇）=1 ∶5时,SiO2在Fe3O4微球表面包覆均匀完整,厚度约为60 nm。药物吸附实验显示,制备的SiO₂@Fe₃O₄复合纳米微球对表柔比星的吸附率为51.9%,磁响应性、体外稳定性和缓释效果均较好。 结论： 新型磁性纳米微球SiO2@Fe3O4能有效吸附和缓释表柔比星,具有良好的磁响应性,可作为靶向纳米药物载体。     

平阳霉素磁性微球的制备及特性检测

目的 :制备平阳霉素磁性微球 ,对其特性进行检测并评价其靶向性。方法 :采用冷冻凝聚法制备包裹超微Fe3O4 和平阳霉素的明胶微球 ,测定微球的直径 ;应用液相高效色谱仪、原子吸收分光光度仪、药物溶出仪等测定微球各成分含量、释放率及在外加磁场作用下微球在大鼠体内的分布情况。结果 :微球呈球形 ,平均直径 32 .2 3μm各成分含量为 (W/W ) :Fe3O4 11.7%,PYM3 .8%,明胶 84.5 %。 3h内平阳霉素释放率 6 3 .1%。Fe3O4 在大鼠靶向部位分布明显高于非靶向部位。结论 :平阳霉素磁性微球具有较好的靶向性和缓释性 ,是治疗海绵状血管瘤较为理想的剂型。     

平阳霉素磁性微球的制备及特性检测

目的：制备平阳霉素磁性微球，对其特性进行检测并评价其靶向性。方法：采用冷冻凝聚法制备包裹超微Fe203和平阳霉素的明胶微球，测定微球的直径；应用液相高效色谱仪、原于吸收分光光度仪、药物溶出仪等到定微球各成分含量、释放率及在外加磁场作用下微球在大鼠体内的分布情况。结果：微球呈球形，平均直径32．23μm各成分含量为(W／W)：Fe30411．7％，PYM3．8％，明胶84．5％。3h内平阳霉素释放率63．1％。Fe3O4在大鼠靶向部位分布明显高于非靶向部位。结论：平阳霉素磁性微球具有较好的靶向性和缓释性，是治疗海绵状血管瘤较为理想的剂型。     

抗癌药阿霉素磁性蛋白微球的制备及其细胞毒试验

利用加热固化蛋白质原理制备出阿霉素磁性蛋白微球,比色法分析其毒作用。结果显示阿霉素磁性蛋白微球肯有磁性药物微球的形态学特征,体外抑制肿瘤细胞生长的能力与阿霉素相似（Ｐ〈０．０５）,提示阿霉素磁性蛋白微球是抗癌药物阿霉素的一种新剂型,该药物剂型的改变未影响其体外药理作用,与磁声联用发挥靶向高效低毒的抗癌作用。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.