双—β乙基碳酸锗倍半氧化物的抗肿瘤作用

本文报道一种有机锗化合物对小鼠移植瘤的影响,以此药(200mg/ks、po、ip)给荷瘤动物连续灌胃10天时,S_(180)、EAC(实体瘤)和肺癌 C_(57)被抑制,其抑癌率为73～91%。移植肿瘤40天后有机锗化合物组的小鼠存活率在50%以上。将此药经胃管给大鼠时,其 LD_(60)在10g/kg 以上。     

LaCl3对S180小鼠腹水癌细胞超微结构影响的研究

本实验以S_(180)小鼠腹水癌细胞为材料,经腹腔往入不同剂量的三氯化镧,应用透射电子显微镜观察癌细胞亚微结构的变化,为探讨三氯化镧的抑癌作用提供依据。1 材料与方法 选用正常昆明雄性小鼠(20g左右)100只,随机分组(10只为1组)。按常规向腹腔接种S_(180)小鼠腹水型癌细胞。其中两组为对照组,不加任何条件,其余为实验组。实验组分1次性给药组和连续性给药组,1次性给药组于肿癌接肿后第6天经     

亚硒酸钠对艾氏腹水癌(实体型)生长的抑制作用

本文用“肿瘤抑制率”为指标,观察亚硒酸钠对艾氏腹水癌(实体型)生长的抑制作用。3个实验组小鼠腹腔注射亚硒酸钠,剂量分别为1/7LD_(50)(3.50mg/kg体重)、1/10LD_(50)(2.45mg/kg体重)和1/30LD_(50)(0.82mg/kg体重)每日给药1次,共7天。结果以1/10LD_(50)组的“肿瘤抑制率”为最高,经体重校正瘤重后,“肿瘤抑制率”仍高达35.59％。     

β-羧乙基锗倍半氧化物抗癌作用的实验研究

观察了Ge-132对艾氏腹水癌、S_(180)肉瘤(实体瘤)及B_(16)黑色素瘤(自发肺转移)的抑制作用。Ge-132三个剂量均对艾氏腹水癌及S_(180)肉瘤有明显抑制作用。以500mg/kg/日剂量最佳。Ge-132对B_(16)黑色素瘤肺转移亦有明显的抑制作用(P<0.05)。     

“将军斑马胶囊”醇提物对动物移植癌的作用

“将军斑马胶囊”醇提物对6种移植瘤H_(22)、HAC、ARS、EAC、S_(37)、S_(180)小鼠以腹腔或皮下注射低高2种剂量给药,得抑制率均值为41—74％。虽然高剂量的抑制率多数高于灌胃组。然相差不甚显著,但剂量远高于灌胃组,约为小鼠腹腔注射LD50(4.342g/kg生药量)的1/3,而灌胃组的高剂量仅为小鼠灌胃LD50的1/25。故口服给药似比注射给药为佳。     

表柔比星-聚乳酸缓释微球局部治疗肝癌

目的研究表柔比星-聚乳酸缓释微球(EPI-PLA-MS)局部给药治疗肝癌的效果。方法复乳-溶剂挥发法制备EPI-PLA-MS。将40只昆明小鼠随机分为5组,每组8只,分别腹腔注射不同剂量的游离表柔比星(FEPI),计算最大耐受量(MTD)。H22皮下实体瘤肝癌荷瘤小鼠3组,每组5只,分别用生理盐水(normalsaline,NS)、空白微球和含药微球(含EPI9mg/kg)瘤内注射给药,2周后取瘤称重。H22腹水型肝癌荷瘤小鼠3组,每组5只,分别用NS、空白微球和含药微球(含EPI9mg/kg)腹腔注射给药,计算动物生命延长率。结果FEPI腹腔注射的MTD为9mg/kg。EPI-PLA-MS瘤内给药后含药微球组和空白微球组的抑瘤率分别为40.35%和36.09%。腹腔给药后能显著延长荷瘤鼠的生存时间,含药微球组和空白微球组生命延长率分别为153.49%和142.22%。结论EPI-PLA-MS是一种有效低毒的药物新剂型,在局部治疗肝癌方面具有良好的临床应用前景。     

基于蛋白质组学探讨消癌解毒方调控Nrf2/HMOX1通路促进肝癌细胞铁死亡的作用机制

目的 通过蛋白质组学方法探讨消癌解毒方促进肝癌小鼠肿瘤细胞铁死亡,抑制移植瘤生长的作用机制。方法 C57BL/6J小鼠随机分为模型组、消癌解毒方低剂量组、消癌解毒方高剂量组、消癌解毒方联合铁死亡抑制剂组、铁死亡抑制剂组、顺铂组。构建H22小鼠移植瘤模型,消癌解毒方低、高剂量组予消癌解毒方灌胃,剂量分别为(10、20 g·kg^-1·d^-1);铁死亡抑制剂组予Liproxstatin-1腹腔注射,剂量为10 mg·kg^-1·d^-1;顺铂组予顺铂腹腔注射,剂量为10 mg·kg^-1·d^-1;消癌解毒方联合铁死亡抑制剂组予消癌解毒方(20 g·kg^-1·d^-1)灌胃以及Liproxstatin-1(10 mg·kg^-1·d^-1)腹腔注射,模型组灌胃等量生理盐水。连续给药11 d后剥取瘤体计算抑瘤率;HE染色检测病理变化;透射电镜观察线粒体结构变化;流式细胞术检测瘤体组织活性氧(...     

爱康宁胶囊体内抗癌实验研究

目的 研究爱康宁胶囊体内抗肿瘤作用及其机制。方法 爱康宁胶囊125.0mg/kg、250.0mg/kg和500.0mg/kg灌胃给药，观察其对小鼠S180肉瘤抑瘤率及对荷腹水型肝癌（HepA)生存期的改变，并对小鼠腹腔巨噬细胞吞噬功能进行检测。结果 爱康宁胶囊对S180肉瘤有明显的抑制作用，使用剂量为125.0、250.0和500.0mg/kg时抑瘤率依次为38.86%、48.23%和66.27%；对荷腹水型肝癌（HepA)小鼠生存期有延长作用，可使小鼠腹腔巨噬细胞吞噬指数增加，吞噬能力提高。结论 爱康宁胶囊可通过提高机体免疫机能而发挥显著的抗肿瘤作用。     

蓖麻酸抗癌作用的初步研究

用作者提取的蓖麻酸分别制成乳剂Emu—RA 和脂质体PL—RA,进行动物体内外抗癌活性实验,结果表明,蓖麻酸脂质体PL—AR 腹腔注射400mg/(kg.d)对小鼠S_180实体瘤的抑制率可达58%;蓖麻酸乳剂Emu—AR 体外对S_180腹水型瘤细胞有明显的直接杀伤作用。     

毛柄金钱菌水溶性多糖抑制小鼠S180实体瘤生长的研究

作者对毛柄金钱菌子实体中提取的水溶性多糖进行了抗肿瘤活性研究。结果表明:每只小鼠每日腹腔注射多糖样品A或B5mg/kg,连续10日,能明显抑制经皮下接种的S180实体瘤在昆明种小鼠体内的生长(P<0.05),抑瘤率为39.5～40％;每只小鼠每日腹腔注射样品A0.5～5mg/kg,连续10日,能有限地延长S180腹水癌小鼠的存活时间,生命延长率为29％。     

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.