库尔特GEN-S血细胞分析仪VCS法与手工法测定嗜酸性粒细胞的比较

目的:应用库尔特GEN-S全自动血细胞分析仪的VCS法与常规手工计数法进行嗜酸性粒细胞计数,将两者结果进行比较.方法:随机抽取100例门诊病人的静脉血样本,分别用库尔特GEN-S全自动血细胞分析仪,手工乙醇-伊红法进行嗜酸性粒细胞计数.结果:手工法与VCS法计数结果差异无显著性(P>0.05),相关性良好,(r=0.98).但手工法计数结果变异系数较大(CV=10.65),重复性较仪器法差,而GEN-S血细胞分析仪重复性好(CV=5.56),操作简便,效率高.     

XE-2100血细胞分析仪在脑脊液白细胞计数中的应用

目的显微镜下人工计数是脑脊液白细胞计数的常规方法,本文探讨XE-2100血细胞分析仪在脑脊液白细胞计数中的应用.方法标本分别用计数板和血细胞分析仪进行白细胞计数.结果两种方法检测具有良好的相关性.结论 Sysmex XE-2100血细胞分析仪可以快速对脑脊液中白细胞进行准确计数.     

外周血白细胞增多与急性脑梗死死亡患者的相关性分析

目的 对138例急性脑梗死住院死亡病例与140例存活病例的白细胞计数及中性粒细胞分类计数进行了回顾性分析,探讨白细胞计数对脑梗死转归的影响,以便对高危患者及时予以干预.方法 用库尔特MDII、sysmex SF-3000、AOVIA-120血细胞分析仪,检测白细胞计数及中性粒细胞分类计数,数据资料源于神经内科住院病历或急诊病例.统计软件为SAS6.12,采用t检验,成组logistic回归分析.结果 与生存组比较,死亡组的白细胞计数及中性粒细胞分类计数均显著增高,P<0.001.结论 外周血白细胞增加与急性脑梗死死亡事件有显著相关,对于白细胞增加的脑梗死患者应及时干预,以降低死亡率.     

自动化分析仪在脑脊液细胞计数中的应用

目的 探讨尿沉渣分析仪UF-50和血细胞分析仪SF-3000用于脑脊液细胞计数的可行性。方法 分别用尿沉渣分析仪和血细胞分析仪对121份脑脊液标本进行红细胞和白细胞计数，并与普通光学显微镜计数进行比较。结果 UF-50检测的红细胞和白细胞数与镜检相关性良好，而SF-3000检测的红细胞与白细胞数与镜检没有什么相关性。结论 UF-50可用于脑脊液中细胞计数，而SF-3000不可用。     

库尔特GEN-S血细胞分析仪VCS法与手工法测定嗜酸性粒细胞的比较

目的 :应用库尔特 GEN- S全自动血细胞分析仪的 VCS法与常规手工计数法进行嗜酸性粒细胞计数 ,将两者结果进行比较。方法 :随机抽取 10 0例门诊病人的静脉血样本 ,分别用库尔特 GEN- S全自动血细胞分析仪 ,手工乙醇 -伊红法进行嗜酸性粒细胞计数。结果 :手工法与 VCS法计数结果差异无显著性 (P>0 .0 5 ) ,相关性良好 ,(r=0 .98)。但手工法计数结果变异系数较大 (CV=10 .6 5 ) ,重复性较仪器法差 ,而 GEN- S血细胞分析仪重复性好 (CV=5 .5 6 ) ,操作简便 ,效率高     

全自动血细胞分析仪稀释模式用于脑脊液细胞计数及分类检测的可能性

目的：探讨ABX PENTRA 60血细胞分析仪在脑脊液细胞计数及分类中应用的可能性。方法：采用ABX PENTRA 60血细胞分析仪稀释模式对100份脑脊液标本进行白细胞计数、红细胞计数和白细胞分类分析,并与人工显微镜计数分类法结果进行对比。白细胞分类手工法采用瑞氏染色法,仪器法采用荧光染色和流式细胞术原理进行分类。结果：两种方法对脑脊液标本白细胞计数、红细胞计数、单个核及多个核细胞的绝对计数检测差异无统计学意义（ P>0.05）,并且两种方法具有良好的相关性（白细胞计数r=0.988、红细胞计数r=0.988、单个核细胞绝对计数r=0.953,多个核细胞绝对计数r=0.981）。结论：应用ABX PENTRA 60血细胞分析仪的稀释模式进行脑脊液细胞计数、分类快速准确。全自动血细胞分析仪稀释模式检测脑脊液常规中细胞计数及分类可在临床应用中推广。     

Pentral 120全自动分析仪白细胞分类计数结果及散点图分析

用Pentral 120血细胞分析仪对1577份标本进行血细胞分析，结合目视显微镜白细胞计数结果，评价白细胞分类计数结果的可靠性及分析白细胞分类散点图的意义。结果两者白细胞分类计数结果相符1438份，占91．2％，不符合139份，占8．8％；分析仪未给出分类计数结果245份，占13．4％(245／1822)。Pentral 120全自动血细胞分析仪使用先进的化学染色技术，提高了白细胞分类计数的准确性，准确地分出嗜酸性粒细胞、嗜碱性粒细胞，但不能完全取代传统的目视显微镜复片，分析提供的散点图及各种提示具有很好的临床指导价值。     

胸腹水常规检查中白细胞计数检验结果分析

目的研究并探讨胸腹水常规检查中白细胞计数检验的方法及效果。方法选取该院2014年1月‐2016年2月进行胸腹水常规检查的100例患者为研究对象,采集患者的胸腹水标本共100份,分别采用UF-1000i全自动尿沉渣分析仪和XE-5000血细胞分析仪对胸腹水标本中的白细胞计数进行检测,并以光学显微镜手工计数作为参照标准,观察UF-1000i全自动尿沉渣分析仪和XE-5000血细胞分析仪在确定仪器线性范围内白细胞浓度中的线性均值和精密度,对比3种检验方法中的白细胞计数测定结果。结果在已知白细胞浓度≤2.0×10~9/L时,UF-1000i全自动尿沉渣分析仪对白细胞计数的线性更好,精密度更高;在已知白细胞浓度≥8.0×10~9/L时,XE-5000血细胞分析仪对白细胞计数的线性更好,检测精密度更高;在胸腹水标本确定仪器线性范围内白细胞浓度的检测结果中,UF-1000i全自动尿沉渣分析仪、XE-5000血细胞分析仪和光学显微镜手工计数的结果比较差异均无统计学意义(P0.05)。结论在胸腹水的白细胞计数检验过程中,可采取UF-1000i全自动尿沉渣分析仪、XE-5000血细胞分析仪进行检测,其检测精确性较高,与光学显微镜手工计数相当。     

库尔特HMX血细胞分析仪旗标和代码出现的原因及临床意义

库尔特HMX血液分析仪是美国贝克曼库尔特公司生产的全自动五分类血细胞分析仪，其专利的VCS三维分析技术使得库尔特血细胞分析仪具有性能稳定、结果准确、重复性好、故障率低、易于保养维护，是较为理想的血细胞分析仪。我科于2004年引进一台，经总结把使用中旗标和代码出现的原因及临床意义报告如下。     

血细胞分析仪测定白细胞结果假性高值的原因及纠正方法

血细胞分析仪具有快速、方便、重复性好、工作效率高等优点，各大、中医院检验科广泛应用。但是血细胞分析仪测定白细胞结果偏高是临床经常问题。本研究对SF-3000全自动血细胞分析仪检测白细胞出现可疑提示(WBC旁注*，并提示PLTC／NRBC)的标本加以分析，发现有5种原因造成白细胞计数结果假性升高，本文探讨造成白细胞计数假性高值的原因并提出一些纠正方法供同行参考。     

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.