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1.
ARAPIDESTIMATIONOFCELLCYCLEPARAMETERS:ONEHOURCOUNTINUOUSBROMODEOXYURIDINE(BrdUrd)LABELING METHODShiXuegeng(石学耕)(DepartmentofB...  相似文献   

2.
PHARMACOKINETICSOFCUPRIC-BIS(SALICYLALDEHYDE-2-FURANTHIOCARBOXY-HYDRAZONATE)DICHLORIDE(CSFTCH)INRABBITS¥GaoYunsheng;ZhuYuyun(...  相似文献   

3.
转化生长因子—β对骺软骨细胞增殖和PCNA表达的影响   总被引:1,自引:0,他引:1  
采用14天鸡胚股骨无血清培养、5-溴尿嘧啶核苷(BrdU)掺入标记和细胞核增殖抗原(PCNA)免疫染色方法,研究转化生长因子-β(TGF-β)对骺软骨细胞增殖的作用。结果显示:BrdU阳性软骨细胞数目与分布都位于TGF-β作用剂量和时间密切相关,TGF-β可以促进骺板成熟区和肥大区软骨细胞增殖,与BrdU标记相比,PCNA阳性细胞分布区域和数目远多于前者,根据染色情况可以将PCNA阳性细胞分为S期和S期细胞两种。结论:TGF-β参与和调节骺软骨各部位软骨细胞增殖活动,并能诱导非增殖软骨细胞表达PCNA,用PCNA作为细胞增殖的指标是不适宜的。  相似文献   

4.
CORRELATIONBETWEENTHENUMBEROFMITOTICFIGURESANDTHEPERCENTAGEOFKi67-POSITIVECELLS INNON-HODGKIN’SLYMPHOMASHuangGaosheng;(黄高升)Fe...  相似文献   

5.
CHANGESOFIMMUNEFUNCTIONSAFTERRADIATIO,BURNSANDCOMBINEDRADIATION-BURNINJURYIN RATSYanYongtang(阎永堂);RanXinze(冉新泽)andWeiShuqing(...  相似文献   

6.
TREATMENTOF23PATIENTSWITHADVANCEDGASTRICCANCERBYINTRAVENOUSLYTRANSFEROFAUTOLOGOUSTUMOR-INFILTRATINGLYMPHOCYTESCOMBINEDWITHrIL...  相似文献   

7.
SERUMAMYLOIDPCOMPONENTNOTASSOCIATEDWITHC4B一BINDINGPROTEININHUMANSERUMSHOWNBYCROSSEDIMMUNOELECTROPHORESISINTHEPRESENCEOFCALCIU...  相似文献   

8.
DOWN-REGULATIONOFC-MYCONCOGENEDURINGNGF-INDUCEDDIFFERENTIATIONOFNEUROBLASTOMACELLLINESChenJie(陈杰),LiuTonghua(刘彤华)andAlonzoHRo...  相似文献   

9.
目的 检测胆道梗阻肝脏部分切除术(PH)后肝细胞周期素(cyclin)D1、E及细胞周期素依赖性激酶CDK2、CDK4 mRNA的表达变化。方法 Wistar大鼠随机分为正常70%肝部分切除组(N-PH)、胆道梗阻(BDO)胆流再通(RBF)70%PH组(BDO-PH)及胆道梗阻胆流再通组(BDO-RBF)。RT-PCR法检测肝细胞cyclin D1、cyclin E mRNA及CDK2、CDK4 mRNA表达。结果 BDO-PH后肝细胞cyclin D1 mRNA和CDK4 mRNA、 cyclin E mRNA和CDK2 mRNA表达变化时限一致,其表达增长缓慢,表达高峰晚于N-PH组12-24h,分别于70%PH后24h及48h达到高峰,且其高峰表达值亦明显低于N-PH组。结论 胆道梗阻大鼠70%PH后肝细胞cyclin D1 mRNA、clcin E mRNA及CDK2 mRNA、CDK4 mRNA表达高峰延后,且表达量减少。  相似文献   

10.
目的:检测非肝硬变性胆道梗阻肝脏部分切除(PH)术后肝内促肝细胞生长的肝细胞生长因子(HGF)与转化生长因子-α(TGF-α)及其受体Met基因(HGF受体)、表皮生长因子受体EGFR(亦是TGF-α受体)mRNA的表达变化。方法:Wistar大鼠随机分为正常70%肝部分切除组(N-PH)、胆道梗阻(BDO)胆流再通(RBF)70%PH组(BDO-RBF-PH)、及胆道梗阻胆流再通组(BDO-RBF)。观察时相点为术后0、6、12、24、48及72h。RT-PCR法检测肝内HGF mRNA,TGF-αmRNA及肝细胞Met mRNA与EGFR mRNA表达。结果:N-PH组6h肝内HGF mRNA与肝细胞Met mRNA表达急剧增高并达到高峰,而BDO-RBF-PH组内HGF mRNA与肝细胞Met mRNA的表达高峰延后至术后12h,且高峰表达量低于N-PH ;N-PH组24h肝内TGF-αmRNA与肝细胞EGFR mRNA表达增高并达到高峰,而BDO-RBF-PH组肝内TGF-α mRNA与与肝细胞EGFR mRNA的表达高峰后至70%PH后48h, 且高峰表达量亦低于N-PH组。结论:非肝硬变性胆道梗阻大鼠70%RH后肝内HGF mRNA及肝细胞Met mRNA、肝内TGF-αmRNA及肝细胞EGFR mRNA表达均明显减少,且HGF及TGF-α mRNA的表达相对少于其受体mRNA的表达。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

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