粒细胞集落刺激因子动员正常供者外周血造血干细胞研究

目的:探讨粒细胞集落刺激因子(G-CSF)动员正常供者外周血造血干细胞的效果、影响因素及不良反应。方法:对20例造血干细胞正常供者采用中位剂量G-CSF10.9μg/(kg·d)皮下注射3～5天后,使用COBESpectra血细胞分离机采集外周血干细胞。采用流式细胞仪检测采集物中CD34 细胞数。结果:第一次采集的单个核细胞(MNC,个)及CD34 细胞量(个)分别为(1.12～13.06,中位数3.10)×108/kg供者体重及(1.14～10.42,中位数3.8)×106/kg供者体重。MNC及CD34 细胞采集总量分别为(2.21～13.60,中位数5.80)×108/kg受者体重及(2.30～14.00,中位数6.40)×106/kg受者体重,均达到移植要求。男性CD34 细胞总量显著高于女性。不良反应较为轻微。供者年龄、体重、G-CSF剂量、采集前白细胞数等与采集所得MNC及CD34 细胞量无明显相关性。结论:G-CSF作为正常供者动员剂安全有效。     

国产粒细胞集落刺激因子动员健康供者造血干细胞的临床观察

目的:观察国产粒细胞集落刺激因子(G-CSF)对32名健康供者外周血造血干细胞动员效果及不良反应。方法:选取2017年4-11月期间32名健康供者应用G-CSF 5~10μg/(kg·d)连续5 d皮下注射,若第4天白细胞低于30×10~9/L,第4.5天开始采集前2 h加用G-CSF 5μg/kg皮下注射,用COBE Spectra血细胞分离机采集外周血造血干细胞,若采集数量不够,第5.5天再采集1次。观察供者动员前后血常规的变化和采集造血干细胞结果,以及出现的不良反应。结果:动员后第4.5天白细胞明显高于动员前,差异均有统计学意义(P0.05)。32名供者均成功采集,外周血单个核细胞(PBMNC)8.5(3.17~20.95)×10~8/kg、CD34~+6.43(2.15~17.5)×10~6/kg,其中4名供者需采集2次,余28名供者均采集1次。10名供者出现腰背部酸痛,3名出现乏力,均能耐受;4名供者采集过程中出现口唇、四肢麻木,予静滴钙剂后均缓解。结论:所有供者经G-CSF动员后均可成功采集,并能耐受其不良反应,可替代进口G-CSF供临床使用。     

同胞供者经G—CSF动员后外周血干细胞与幼稚粒细胞关系的研究

目的：研究供者经粒细胞集落刺激因子（G-CSF）动员后,采集的外周血干细胞（PBSC）移植物中的幼稚粒细胞与CD34^ 细胞及单个核细胞（MNC）之间的相关性。方法：10例异基因外周血干细胞移植（allo-PBSCT)供者用G-CSF（仅2例用G-CSF GM-CSF）7.25-10ug.kg^-1.d^-1进行动员,于动员前及动员后,对外周血及收集的外周血干细胞（PBSC）收集物中幼稚粒细胞及CD34^ 细胞进行检测计数。结果：（1）动员后白细胞主数及细胞计数及幼稚粒细胞逐渐增加,至5天达高峰;（2）外周血MNC中幼稚粒细胞增加与CD34^ 细胞增加有较好的相关性;（3）经2次单采后供者血小板约降低60%,但一周后基本恢复正常,结论：G-CSF7.25-01ug.kg^-1.d^-1分两次皮下注射能有效动员PBSC;allo-PBSCT供者经G-CSF动员后,外周血MNC中幼稚粒细胞数结合可做为allo-PB-SCT的剂量阈标准。     

化疗联合G-CSF动员外周血造血干细胞疗效观察

目的:探讨化疗联合粒细胞集落刺激因子动员外周血造血干细胞(PBSC)的效果。方法:12例恶性血液病患者采用化疗联合G-CSF进行PBSC动员和采集,并检测采集物中单个核细胞计数(MNC)和CD34+细胞。结果:12例患者均一次即获足量干细胞,获MNC平均5.7(2.2~7.6)×108/kg,CD34+细胞平均15.2(2.5~26.9)×106/kg。未出现严重不良反应。结论:化疗联合G-CSF能安全、高效地动员PBSC,满足移植的需要。     

健康供者骨髓血造血干细胞采集效果分析

目的：研究影响骨髓造血干细胞动员及采集的因素。方法方便选取2013年3月＿2016年6月期间就诊该院的77名健康供者,经重组人粒细胞集落刺激因子(rhG-CSF﹚动员后第4天采集骨髓,分析不同健康供者的年龄和性别对骨髓造血干细胞采集的影响以及采集时外周血白细胞数与采集效果的关系。结果77名供者均成功采集,骨髓采集物单个核细胞数(BM-MNCs)为(4.3±0.43﹚×108/kg,骨髓采集物CD34+细胞数(BM-CD34+﹚为(1.84±0.30﹚×106/kg,健康供者年龄和性别差异无统计学意义,采集时外周血白细胞数不能预测骨髓采集物中CD34+细胞的数量。结论采用5~10μg/kg G-CSF动员,健康供者均可成功采集骨髓干细胞。     

缺血性脑卒中大鼠模型骨髓干细胞的动员和神经修复作用

目的研究粒细胞集落刺激因子(granulocyte-colony stimulating factor,G-CSF)对卒中后骨髓干细胞的动员与血管再生和神经修复的影响。方法线栓法制备大鼠大脑中动脉栓塞(middle cerebral artery occlusion,MCAO)模型,成功造模大鼠(60只)分为生理盐水对照组和G-CSF治疗组。治疗组皮下注射G-CSF[2、10、50、250μg/(kg.d)],对照组以等量生理盐水进行处理。治疗1、3、5、7 d后,进行行为学评分并取外周血计数单个核细胞,提取RNA进行RT-PCR检测单个核细胞CD31、CXCR4 mRNA的表达水平;实验动物灌注固定后取脑组织切片检测G-CSF作用后脑组织中CD31、CD133及基质细胞衍生因子SDF-1表达。结果与生理盐水对照组相比,G-CSF治疗组神经功能有明显的改善(P<0.05);G-CSF作用后外周血中单个核细胞数量明显增加;G-CSF低剂量作用组[2、10μg/(kg.d)]外周血单个核细胞CD31及CXCR4 mRNA表达随着用药时间的延长而增强;高剂量[50、250μg/(kg.d)]在短时间内(1、3 d),外周血单个核细胞CD31、CXCR4 mRNA随着用药剂量的升高而增强,250μg/(kg.d)最强,且随着用药时间的延长(5、7 d),G-CSF作用逐渐减弱;G-CSF作用后脑组织内皮细胞标志CD31、CD133及SDF-1阳性表达明显增加。结论 G-CSF能改善MCAO后大鼠症状,其机制可能在于动员骨髓干细胞进入外周血并促进脑组织SDF-1表达以趋化干细胞,继而促进脑组织的血管再生和神经修复。     

Effects of G-CSF on nerve repair and mobilization of bone marrow stem cells in rat models of focal cerebral ischemic stroke

目的 研究粒细胞集落刺激因子(granulocyte-colony stimulating factor,G-CSF)对卒中后骨髓干细胞的动员与血管再生和神经修复的影响.方法 线栓法制备大鼠大脑中动脉栓塞(middle cerebral artery occlusion,MCAO)模型,成功造模大鼠(60只)分为生理盐水对照组和G-CSF治疗组.治疗组皮下注射G-CSF[2、10、50、250 μg/(kg·d)],对照组以等量生理盐水进行处理.治疗1、3、5、7d后,进行行为学评分并取外周血计数单个核细胞,提取RNA进行RT-PCR检测单个核细胞CD31、CXCR4mRNA的表达水平;实验动物灌注固定后取脑组织切片检测G-CSF作用后脑组织中CD31、CD133及基质细胞衍生因子SDF-1表达.结果 与生理盐水对照组相比,G-CSF治疗组神经功能有明显的改善(P＜0.05);G-CSF作用后外周血中单个核细胞数量明显增加;G-CSF低剂量作用组[2、10μg/(kg·d)]外周血单个核细胞CD31及CXCR4mRNA表达随着用药时间的延长而增强;高剂量[50、250μg/(kg·d)]在短时间内(1、3 d),外周血单个核细胞CD31、CXCR4 mRNA随着用药剂量的升高而增强,250μg/(kg· d)最强,且随着用药时间的延长(5、7d),G-CSF 作用逐渐减弱;G-CSF作用后脑组织内皮细胞标志CD31、CD133及SDF-1阳性表达明显增加.结论 G-CSF能改善MCAO后大鼠症状,其机制可能在于动员骨髓干细胞进入外周血并促进脑组织SDF-1表达以趋化干细胞,继而促进脑组织的血管再生和神经修复.     

Amicus血细胞分离机干/祖细胞采集效果及采集前后供者血液指标变化

目的 探讨Amicus血细胞分离机单个核细胞(MNC)程序采集外周血干细胞/祖细胞的效果及供者采集前后血液指标变化.方法 应用Amicus血细胞分离机的MNC程序采集21例供者外周血干细胞,21例供者经G-CSF动员,于第5天采集外周血,处理全血量为(9 428.23±3 169.36)ml,抗凝剂为(813.49±165.46)ml.结果 采集物中MNC数为(19.75±9.01)×109/袋,MNC百分率为(97.34±2.52)%,MNC的采集效率为(56.91±26.82)%,CD34+细胞数为(1.80±0.97)×108/袋,产品容量为(149.42±32.13)ml,采集后供者红细胞、血红蛋白、红细胞压积、血小板分别下降10.97%、9.98%、10.06%、10.67%,所有供者均未出现严重的不良反应.结论 应用Amicus血细胞分离机采集外周血干细胞,可以安全高效地从供者外周血中分离出MNC和CD34+细胞,用于干细胞移植.     

丹参酮联合rhG-CSF动员高龄健康供者外周血造血干细胞的效果分析

目的研究丹参酮联合重组人粒细胞集落刺激因子(rhG-CSF)方案对高龄健康供者外周血造血干细胞的动员效果。方法回顾性分析2008年11月至2010年12月采用丹参酮联合rhG-CSF和单用rhG-CSF动员方案,动员高龄健康供者外周血造血干细胞的效果。其中丹参酮联合rhG-CSF组34例,单用rhG-CSF组31例;年龄45～60岁,平均49.6岁。中位体质量61.2kg(49.5～79.0kg)。给予丹参酮注射液(40mL/d)联合rhG-CSF 10μg.kg-1.d-1,或单用rhG-CSF 10μg.kg-1.d-1行外周血干细胞动员。动员第5天采集外周血单个核细胞(MNC),检测MNC和CD34+细胞数。采集外周血干细胞于当日输注给患者(预处理结束后24h)。结果丹参酮联合rhG-CSF组中30例供者1次采集充足,4例采集2次,平均采集MNC数6.7(5.9～14.3)×108/kg,CD34+细胞3.9(2.7～8.3)×106/kg;单用rhG-CSF组中22例1次采集充足,9例采集2次及以上,平均采集MNC数5.3(4.6～11.9)×108/kg,CD34+细胞数3.1(2.1～6.7)×106/kg,两组比较差异均有统计学意义(P<0.05)。造血干细胞移植预处理后所有患者均达到明显骨髓抑制,丹参酮联合rhG-CSF组供者中性粒细胞恢复到0.5×109/L时间为12.4(10～17)d,血小板(PLT)恢复到20×109/L时间为14.2(13～18)d;单用rhG-CSF组供者中性粒细胞恢复到0.5×109/L时间为12.8(10～18)d,PLT恢复到20×109/L时间为14.8(13～19)d,两组比较差异均无统计学意义(P>0.01)。结论丹参酮联合rhG-CSF动员方案可显著提高异基因造血干细胞移植高龄健康供者外周血干细胞动员效果,保证移植后造血功能的重建。对于高龄供者是一种安全有效的动员造血干细胞的方法,临床效果满意,值得推广。     

健康供者外周血造血干细胞动员的临床研究

目的:探讨造血生长因子(HGFs)对健康供者外周血干细胞(PBSC)的动员作用,并比较粒细胞集落刺激因子(G-CSF)单用及G-CSF联合粒-巨噬细胞集落刺激因子(GM-CSF)的动员效果.方法:52例健康供者分成G-CSF单用组(34例)及与GM-CSF合用组(18例),分别采用G-CSF(5 μg·kg-1·d-1)及G-CSF(3 μg·kg-1·d-1)+GM-CSF(2 μg·kg-1·d-1),连续皮下注射5～6 d动员,采集PBSC.动员前后动态检测外周血及采集物MNC、CD34+细胞、CFU-GM计数.52例血液病患者接受上述供体动员之PBSC并行异基因PBSC移植(Allo-PBSCT).结果:动员后CD34+细胞及CFU-GM分别较动员前增加10.83及8.7倍,并在第5～6天达到高峰;G-CSF单用及与GM-CSF合用均可有效动员CD34+细胞和CFU-GM,但合用较单用更有效(P<0.05);所有患者接受Allo-PBSCT后均满意获得造血重建;随访观察至今应用HGFs对健康供者无明显不良反应.结论:采用中小剂量G-CSF单用和与GM-CSF合用均能安全、有效动员健康供者PBSC,但以合用更为有效.     

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.