性别、年龄对SPF级近交系Wistar大鼠血常规值的影响

目的研究SPF级近交系Wistar大鼠性别和年龄因素对其血常规值的影响。方法用MEK-7222K全自动血液分析仪检测SPF级近交系Wistar大鼠血常规值。结果SPF级近交系Wistar大鼠周龄对其体重、白细胞、淋巴细胞、单核细胞、血红蛋白、红细胞压积、血小板、血小板压积、血小板分布宽度有极显著影响（P〈0.01）,周龄对中性粒细胞、血小板平均体积有显著影响（P〈0.05）,周龄对嗜酸性细胞、嗜碱性细胞、红细胞、红细胞平均体积、平均红细胞血色素量无显著影响（P〉0.05）。SPF级Wistar大鼠性别对体重、白细胞、血小板分布宽度有极显著影响（P〈0.01）,性别对嗜碱性细胞有显著影响（P〈0.05）,性别对中性粒细胞、淋巴细胞、单核细胞、嗜酸性细胞、红细胞、血红蛋白、红细胞压积、红细胞平均体积、平均红细胞血色素量、血小板、血小板压积、血小板平均体积无显著影响（P〉0.05）。结论SPF级近交系Wistar大鼠的年龄、性别因素对其血常规值有显著的影响。     

热带平原急进高原寒区集训人员血细胞参数变化分析

目的探讨飞行员和地勤人员,从热带平原急进高原寒区集训后,血细胞36项参数的变化,评估集训后人员身体状态,为卫勤保障提供依据。方法选择南海空军某部男性飞行员和地勤人员51名(其中飞行人员11人,地勤人员40人),经医院全面检查身体合格,在海拔3800m高寒训练环境集训前后,采用日本希森美康XT-4000i全自动血细胞分析仪检测血细胞36项参数。结果红细胞(red blood cell,RBC)、血红蛋白(hemoglobin,Hb)、血细胞比容(hema-tocrit,HCT)、红细胞分布宽度(red cell distribution width,RDW)、低荧光网织红细胞比率(low fluorescent reticulocyteratio,LFR)、高荧光网织红细胞比率(high fluorescent reticulocyte ratio,HFR)升高(P<0.01或0.05);血小板(bloodplatelet,PLT)、血小板压积(thrombocytocrit,PCT)、网织红细胞的绝对值(reticulocyte absolute number,Ret#)、网织红细胞百分比(reticulocyte percentage,Ret%)、中荧光网织红细胞(middle fluorescent reticulocyte ratio,MFR)比率、未成熟网织红细胞(immature reticulocyte fraction,IRF)比率、网织红细胞成熟指数(reticulocyte maturity index,RMI)、幼稚粒细胞(immature granulocyte,IG)百分比降低(P<0.01或0.05);单核细胞,嗜碱性粒细胞百分率升高与集训前相比有统计学差异(P<0.05)。结论在高原寒区环境下集训3个月后,来自热带平原的飞行员和地勤人员白细胞系统无明显变化;RBC系统显著升高,RBC的质量降低,携氧功能下降;网织红细胞生成下降,血液中主要以LFR为主,提示大量未成熟红细胞存在,其细胞变形功能下降,进入微动脉变形力减弱。     

316例艾滋病患者红细胞和血小板参数检测结果分析

目的:探讨艾滋病患者(AIDS)外周血红细胞和血小板参数变化。方法:采用sysmex XE-2100全自动血细胞分析仪检测316例艾滋病患者和316例非艾滋病患者标本的血常规。结果:AIDS患者红细胞计数(RBC)、红细胞压积(HCT)、平均红细胞体积(MCV)、红细胞平均血红蛋白含量(MCH)、红细胞平均血红蛋白浓度(MCHC)、红细胞体积分布宽度(RDW-SD)、血小板计数(PLT)、血小板压积(PCT)、血小板平均体积(MPV)、血小板分布宽度(PDW)、大血小板比率(P-RCL)与对照组比较有明显差异。结论:红细胞相关参数及血小板相关参数的变化对临床诊治AIDS可能有一定的参考价值。     

性别、年龄、微生物因素对Wistar大鼠血常规值的影响

目的　研究性别、年龄、微生物因素对Wistar大鼠血常规值的影响。方法　Coulter JT全自动血常规检测仪自动检测。结果　SPF级雌、雄老龄Wistar大鼠红细胞、血红蛋白、红细胞平均体积、红细胞平均血色素量、血小板计数、红细胞平均分布宽度差异有非常显著意义 (P <0 0 1 ) ;白细胞、中性粒细胞差异有显著意义 (P <0 0 5 )。SPF级、普通级老龄Wistar大鼠白细胞、中性粒细胞、淋巴细胞、红细胞、血小板平均分布宽度、血小板平均体积差异有非常显著意义 (P <0 0 1 ) ;血红蛋白、红细胞压积、红细胞平均体积、血小板计数差异有显著意义 (P <0 0 5 )。SPF青年、老龄Wistar大鼠中性粒细胞、单核细胞、血红蛋白、红细胞平均血色素量、血小板平均分布宽度、血小板平均体积差异有非常显著意义 (P <0 0 1 ) ;白细胞、血小板计数差异有显著意义 (P <0 0 5 )。结论　性别、年龄、微生物对Wistar大鼠血常规值有显著影响     

稀释液渗透压降低对血细胞检测的影响分析

目的:探讨稀释液渗透压降低对血细胞测定的影响.方法:分别使用日本sysmex K-4500血细胞分析仪专用稀释液(渗透压:255 mOsm/L)和低渗稀释液(渗透压:206 mOsm/L)对25份EDTA-K2抗凝静脉血标本进行检测,以专用稀释液测定的结果为正常对照,两组结果进行统计学分析.结果:使用低渗稀释液测定的结果中白细胞、红细胞、血红蛋白、平均红细胞血红蛋白量、血小板、淋巴细胞百分比、中间细胞百分比、中性粒细胞百分比与正常对照组没有差异,红细胞压积、平均红细胞体积、平均红细胞血红蛋白浓度、红细胞体积分布宽度、血小板体积分布宽度、平均血小板体积、大血小板比值差异有显著性.结论:稀释液渗透压降低主要影响与体积相关的参数,对细胞数量的计数影响不大;日常工作中应加强室内质控,保证使用渗透压稳定的稀释液.     

稀释液渗透压降低对血细胞检测的影响分析

目的 :探讨稀释液渗透压降低对血细胞测定的影响。方法 :分别使用日本sysmexK - 4 5 0 0血细胞分析仪专用稀释液 (渗透压 :2 5 5mOsm/L)和低渗稀释液 (渗透压 :2 0 6mOsm/L)对 2 5份EDTA K2 抗凝静脉血标本进行检测 ,以专用稀释液测定的结果为正常对照 ,两组结果进行统计学分析。结果 :使用低渗稀释液测定的结果中白细胞、红细胞、血红蛋白、平均红细胞血红蛋白量、血小板、淋巴细胞百分比、中间细胞百分比、中性粒细胞百分比与正常对照组没有差异 ,红细胞压积、平均红细胞体积、平均红细胞血红蛋白浓度、红细胞体积分布宽度、血小板体积分布宽度、平均血小板体积、大血小板比值差异有显著性。结论 :稀释液渗透压降低主要影响与体积相关的参数 ,对细胞数量的计数影响不大 ;日常工作中应加强室内质控 ,保证使用渗透压稳定的稀释液     

血小板参数与抑郁症的关系

目的探讨血小板参数与抑郁症的关系。方法选取2017年5月至2020年6月在绍兴市第七人民医院住院的抑郁症患者156例为观察组,同期在医院健康体检且年龄、性别匹配的健康者133例为对照组;比较对照组体检日及观察组住院后第2天（基线）、治疗2周、治疗3周时血清RBC、红细胞压积、平均红细胞体积、平均血红蛋白量、平均血红蛋白浓度、PLT、红细胞分布宽度、血小板分布宽度、平均血小板体积、单核细胞百分比、嗜碱粒细胞百分比、单核细胞绝对数、血小板压积等观察指标。结果对照组与观察组基线、治疗2周、治疗3周的RBC、红细胞压积、平均红细胞体积、平均血红蛋白量、平均血红蛋白浓度、PLT、红细胞分布宽度、血小板分布宽度、平均血小板体积、单核细胞百分比、单核细胞绝对数、嗜碱粒细胞百分比、血小板压积比较,差异均有统计学意义（均P＜0.05）;其中观察组患者基线、治疗2周、治疗3周的红细胞压积、单核细胞绝对数比较,差异均有统计学意义（均P＜0.05）。结论血小板参数改变是抑郁症患者的特征性改变,可作为抑郁症炎症状态的生物标志物。     

急性脑梗死患者血液流变学和血细胞参数的实验研究

目的:探讨急性脑梗死患者血液流变学及血细胞参数的变化及临床意义。方法:对137例脑梗死患者和120例健康人进行血液流变学及血细胞参数检测,并进行比较分析。结果:患者组除红细胞变形指数外的血液流变学指标、白细胞计数、红细胞计数、血红蛋白含量、平均血小板体积、血小板分布宽度显著高于对照组(P<0.05～0.01);平均红细胞体积、平均红细胞血红蛋白含量、血小板计数和红细胞变形指数显著低于对照组(P<0.05～01),而平均红细胞血红蛋白浓度和红细胞分布宽度则无显著性差异(P>0.05)。结论:血液流变学及血细胞参数异常可能与脑梗死的发生有关。     

普通级与SPF级老龄SD大鼠血常规的测定

目的研究微生物、性别因素对老龄SD大鼠血常规指标的影响。方法Coulter-JT全自动血常规检测仪自动检测,分组比较分析。结果SPF雌、雄老龄SD大鼠红细胞平均体积、红细胞平均血色素量、红细胞平均分布宽度,红细胞、血小板平均分布宽度、血小板平均体积差异有显著性。普通级雌、雄老龄SD大鼠红细胞平均体积、红细胞血色素量、红细胞平均血色素浓度、血小板平均分布宽度、血小板平均体积差异有显著性。普通级、SPF级老龄SD大鼠白细胞、中性粒细胞、淋巴细胞、血红蛋白、红细胞平均体积、红细胞平均血色素浓度差异有显著性,血小板计数、血小板平均体积差异有显著性。结论微生物及性别因素对老龄SD大鼠血常规指标有影响。     

胆红素对血常规检测结果的影响

目的:研究胆红素(TBIL)对血常规检测结果的影响。方法:采集标本91例,根据患者胆红素检测结果分为实验组(胆红素异常45例)和对照组(胆红素正常46例)两组,分别检测两组各项血常规参数,并检测实验组标本在放置不同时间后血常规参数的变化。结果:实验组RBC(红细胞计数)、HGB(血红蛋白)、HCT(血细胞比容)、PLT(血小板)和PCT(血小板压积)均明显低于对照组(P0.01),实验组PDW(血小板体积分布宽度)、MPV(平均血小板体积)、RDW(红细胞体积分布宽度)均明显高于对照组(P0.01),WBC(白细胞计数)、MCV(平均红细胞体积)及MCHC(平均血红蛋白浓度)两组比较无显著差异(P0.05)。不同放置时间下胆红素对血常规检测结果的影响无明显差异(P0.05)。结论:标本中胆红素异常增高会使血常规的多项参数发生不同程度的改变,但未发现胆红素作用时间对血常规检测结果的影响。     

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.