一磺基酞菁锌的合成和分离及时IL—60细胞光敏杀伤的研究

目的 合成和分离一磺基酞菁锌（ＺｎＰｃＳ）,并研究其对体外培养人急性白血病细胞（ＩＬ－６０细胞株）的光敏杀伤效应。方法 采用高效液相色谱法分离纯化ＺｎＰｃＳ,以ＨＬ６０细胞经药物作用４８ｈ红光照射５ｍｉｎ后测定ＺｎＰｃＳ和ＨＬ６０细胞的杀伤作用。结果 ＺｎＰｃＳ浓度２０μｇ／ｍｌ对ＨＬ６０细胞没有明显暗毒性,在红光照射下,１０￣２０μｇ／ｍｌ ＺｎＰｃＳ在体外能显著杀伤ＨＬ６０细胞,并呈剂量的信赖     

癌光啉(PSD-007)——激光照射体外净化白血病细胞的实验研究

研究用铜蒸汽激光照射癌光啉（ＰＳＤ－００７）介导的光敏作用，对白血病细胞系（ＨＬ－６０）的杀伤敏感性表明：白血病细胞对光敏作用敏感，在ＰＳＤ－００７１０μｇ·ｍｌ－１，激光照射２Ｊ·ｃｍ－２的处理条件下，ＨＬ－６０被抑制９８％，而正常骨髓细胞存活４０±８％。将正常骨髓单个核细胞与ＨＬ－６０细胞按１００∶１比例混合后，ＨＬ－６０细胞仍能被选择性杀伤。电镜下见光敏作用后的ＨＬ－６０细胞生物膜结构明显受损。结果提示：ＰＳＤ－００７——激光照射能选择性杀伤白血病细胞。     

癌光啉（PSD—007）——激光照射体外净化白血病细胞的实验研究

研究用铜蒸汽激光照射癌光啉（ＰＳＤ－００７）介导的光敏作用，对白血病细胞系（ＨＬ－６０）的杀伤敏感性表明：白血病细胞对光敏作用敏感，在ＰＳＤ－００７１０μｇ．ｍｌ＾－１，激光照射２Ｊ．ｃｍ＾－２的处理条件下，ＨＬ－６０被抑制９８％，而正常骨髓细胞存活４０±８％。将正常骨髓单个核细胞与ＨＬ－６０细胞按１００：１比例混合后，ＨＬ－６０细胞仍能被选择性杀伤。电镜下见光敏作用后的ＨＬ－６０细胞生物膜结构明     

急性白血病Bcl-2反义寡核苷酸基因治疗的实验研究

目的选用２０ｎｔＢｃｌ－２反义硫代磷酸寡核苷酸（Ａｓ－Ｐｓ－ＯＤＮ，ＡＳＰＯ），并以其正义寡核苷酸（ＳＰＯ）为对照做如下问题探讨：（１）普通剂量（５～２０μｍｏｌ）ＡＳＰＯ对ＨＬ６０细胞、正常及缺铁性贫血患者骨髓细胞及急性白血病病人骨髓细胞或外周白血病细胞（幼稚细胞≥８５％）的作用；（２）大剂量（１６０μｍｏｌ）正义或反义寡核苷酸对ＨＬ６０细胞作用的特点，并通过ＡＳＰＯ引起ＨＬ６０细胞Ｂｃｌ－２蛋白表达变化和ＳＰＯ对ＨＬ６０细胞毒性的变化，寻找可能的最佳效应剂量和最小毒性剂量；（３）ＡＳＰＯ联合化疗药物对ＨＬ６０细胞和原代急性白血病细胞的作用。方法台盼蓝拒染试验和克隆培养测定细胞的生长能力；免疫细胞化学染色和流式细胞仪检测Ｐ２６Ｂｃｌ－２蛋白表达，ＲＴ－ＰＣＲ法检测Ｂｃｌ－２ｍＲＮＡ（Ｂｃｌ－２／β－ａｃｔｉｎ）相对水平；光、电镜下观察凋亡细胞形态，吖啶橙染色及流式细胞仪检测细胞凋亡率，ＤＮＡ提取及电泳观察凋亡细胞ＤＮＡ降解片段的形成；ＭＴＴ法检测ＰＳ－ＯＤＮ及化疗药物的细胞毒作用。结果（１）普通剂量的ＡＳＰＯ即能降低ＨＬ６０细胞及白血病细胞Ｂｃｌ－２ｍＲＮＡ的表达，并抑制ＨＬ６０细胞及１８／２０例白血病细     

洋地黄毒甙体外抗人癌细胞株的作用

目的：探讨洋地黄毒甙体外抗肿瘤作用。方法：以台盼蓝排染法、中性红活染法和克隆形成实验测定洋地黄毒甙（ＤＴ）对多种人癌细胞株的细胞毒作用。结果：０．０１～１．２５μｇ／ｍｌＤＴ在体外能显著杀伤ＨＬ－６０．Ｋ５６２．ＳＭＭＣ－７７２１，ＳＧＣ－７９０１细胞，并呈剂量依赖性，药物作用２４ｈ．ＩＣ５０分别是０．１３２．０．１８２．０．２６５．０．４８９μｇ／ｍｌ。对正常成纤维细胞株ＨＬＦ的ＩＣ（５０）为４．２８８μｇ／ｍｌ．明显高于癌细胞，对癌细胞具有选择毒性作用。克隆形成实验中，０．０１～１．２５μｇ／ｍｌＤＴ处理１２ｈ，对ＨＬ－６０和ＳＧＣ－７９０１细胞集落形成有明显的抑制作用，ＩＣ５０分别是０．０５６．０．ｌ１９μｇ／ｍｌ。结论：应用洋地黄毒甙及其他Ｎａ＋－Ｋ＋－ＡＴＰ酶抑制剂防治肿瘤是一个值得探讨新方向。     

一磺酸基酞菁锌和四磺酸基酞菁锌的分离及在水溶液中的 …

目的 分离一磺酸基酞菁锌（ＺｎＰｃＳ）和四磺酸基酞菁锌（ＺｎＰｃＳ４）,并研究这两种配合物在水溶液中伏安行为。方法 采用高效液色谱分离纯化ＺｎＰｃＳ和ＺｎＰｃＳ４,应用三电极系统测定其在水溶液中伏安曲线,测定ＺｎＰｃＳ４在不同ｐＨ值下和红光照射下的循环伏安曲线。结果 在水溶液中（ｐＨ７．０）,这两种配合物均呈现二个不可逆的单电子还原电流峰,峰Ⅰ的峰电位（Ｅｐ）是＋０．１８Ｖ,峰Ⅱ的峰位置（Ｅｐ）－     

铝酞菁D及其与黄夹甙或维拉帕米合用对肿瘤细胞的光动力治疗作用

目的研究新型光敏剂铝酞菁Ｄ（ＡｌＰＣ－Ｄ）单用及与黄夹甙或维拉帕米合用对体外培养肿瘤细胞的光动力治疗作用。方法细胞经药物作用２ｈ后，用红光辐照一定时间，继续培养２４ｈ，台盼蓝排染法测定药物对肿瘤细胞的抑制率。结果２．５～１０．０μｇ／ｍｌＡｌＰＣ－Ｄ配以５．４或１０．８Ｊ／ｃｍ２的红光射照，能显著杀伤Ｋ５６２和ＳＧＣ７９０１细胞，并有剂量依赖性。０．００１和０．０１μｇ／ｍｌ黄夹甙或单用无效剂量的维拉帕米（５μｇ／ｍｌ）与ＡｌＰＣ－Ｄ合用，能增强后者对Ｋ５６２细胞的光动力作用。结论ＡｌＰＣ－Ｄ对体外培养的肿瘤细胞具有光动力治疗作用，黄夹甙和维拉帕米能增强其作用。     

铝酞菁D及其与黄夹甙或维拉帕米合用对肿瘤细胞的光动力治疗作用

目的 研究新型光敏剂铝酞菁Ｄ（ＡｌＰＣ－Ｄ）单用及与黄夹甙或维拉帕米合用对体外培养肿瘤细胞的光动力学治疗作用。方法 细胞经药物作用２ｈ后，用红光辐照一定时间，继续培养２４ｈ，台盼蓝排染法测定药物对肿瘤细胞的抑制率。结果 ２．５￣１０．０μｇ／ｍｌ ＡｌＰＣ－Ｄ配以５．４或１０．８Ｊ／ｃｍ＾２的红光射照，能显著杀伤Ｋ５６２和ＳＧＣ７９０１细胞，并有剂量依赖性。０．００１和０．０１μｇ／ｍｌ黄夹甙或单     

葡萄球菌肠毒素A的细胞增殖诱导能力

目的：观察葡萄球菌肠毒素Ａ的细胞增殖诱导能力及其抗肿瘤作用。方法：ＭＴＴ微量酶反应比色法。结果：纯化ＳＥＡ在１０＾－１２￣１０＾－１５ｇ／ｍｌ浓度范围对体外培养的ＢＡＬＢ／Ｃ鼠脾细胞表现了细胞增殖诱导能力,并呈剂量依赖关系,其中１０＾－７￣１０＾０５ｇ／ｍｌＳＥＡ的作用强于最适量（２５μｇ／ｍｌ）ＰＨＡ。在Ｅ／Ｔ为５￣２０：１条件下,１０＾－５ｇ／ｍｌＳＥＡ活化４８小时的ＢＡＬＢ／Ｃ鼠脾细胞对Ｙａｃ－１细胞的杀伤活性高于ＮＫ细胞,但ＳＥＡ未能增强ＢＡＬＢ／Ｃ鼠脾细胞对Ｂ１６细胞的杀伤活性。结论：葡萄球菌肠毒素Ａ具有较强的细胞增殖诱导能力,据此超抗原特性可应用于肿瘤的生物治疗。     

电磁辐射对γ射线诱导HL60细胞凋亡影响的初步研究

研究了脉冲磁场与γ射线联合作用对ＨＬ６０细胞凋亡的影响。采用１３７Ｃｓ照射源剂量为４Ｇｙ，磁场强度为２０ＭＴ，频率为２５０Ｈｚ照射人早幼粒白血病细胞。结果表明，ＨＬ６０细胞经电磁场作用后，可以提高γ射线对它的杀伤效果，增加γ射线诱发ＨＬ６０细胞凋亡明显高于单独γ射线照射。     

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.     

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.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.