德州市3～6岁健康儿童锌原卟啉正常值调查

目的 :观察 3～ 6岁健康儿童锌原卟啉 (ZPP)及其与年龄、性别、血红蛋白 (Hb)的关系。方法 :采用血液荧光仪对不同托儿所和学前班的 4 5 4名儿童进行 ZPP和 Hb测定 ,然后进行统计学处理。结果 :4 11名健康儿童正常参考值为 (2 .6 4± 0 .9)μg/ g Hb,95 %上限为 4 .12μg/ g Hb,男性与女性儿童间无差异 (P>0 .0 5 ) ,各年龄组间有显著差异 (P<0 .0 1) ,且 6岁组最高 ,贫血儿童 ZPP亦增高 ,ZPP与 Hb呈负相关 (P<0 .0 5 )。结论 :ZPP可以作为儿童缺铁性贫血的筛查 ,各地区、各实验室及各年龄组应采用不同的正常值     

血液透析患者血清铜和锌含量的测定

目的 :测定慢性肾功能不全血液透析 (HD)患者血清锌 (Zn)和铜 (Cu)含量 ,探讨血液透析对患者微量元素的影响。方法 :血液透析组包括 36名HD患者 ,平均年龄是 4 3岁± 1 5岁 ,2 6名健康志愿者对照组 ,平均年龄为 4 0岁± 1 7岁。每份血液标本用原子吸收光谱法 (AAS)测定血清锌和血清铜水平。结果 :血清Zn水平 :HD组 5 9.6 μg/dl± 1 4 .6 μg/dl,对照组 1 1 4 .9μg/dl± 2 4 .3μg/dl。血清Cu水平 :HD组 6 5 .3μg/dl± 1 2 .8μg/dl,对照组1 4 1 .2 μg/dl±39.3μg/dl。HD组患者血清Zn含量明显低于对照组 (P <0 .0 0 0 1 )。血清Cu的含量也明显低于对照组。长期和短期血液透析患者之间Zn、Cu含量之间没有明显差异 (P >0 .0 5 )。结论 :由于HD患者血清Zn、Cu浓度明显降低 ,建议CRF行血液透析治疗时补充一些微量元素。     

宁夏银南地区2543名0～7岁儿童血清锌水平的分析

目的 :对宁夏银南地区 0～ 7岁儿童血清锌含量进行分析。方法 :用原子吸收光谱法测定银南地区儿童微量耳垂血血清微量元素锌。结果 :男女儿童血清锌值无显著差异 (P >0 0 5 ) ;银南地区高于银川地区 (P <0 0 0 1) ;0～ 3岁组高于3～ 7岁组 (P >0 0 5 )。结论 :测得该地区男女 (0～ 7岁 )儿童血清锌值 ( x±s) 0 846 6± 0 0 719μg/ml。血清锌值检测对了解儿童体内锌含量 ,诊断和治疗某些缺锌所致疾病具有指导意义。     

锌含量检测在前列腺良、恶性疾病诊断中的价值

目的　探讨锌含量与前列腺良、恶性疾病的关系。方法　采用原子吸收光谱法检测前列腺增生及前列腺癌患者全血和前列腺组织中锌含量。结果　良性前列腺增生组全血血锌为 7.2 81± 1.797μg/mL ,前列腺组织锌含量为 36 8.70 4± 77.2 72 μg/g(湿重 ) ;前列腺癌组全血血锌为 4 .5 97± 1.0 71μg/mL ,前列腺组织锌含量为39.6 81± 8.6 6 5 μg/g(湿重 )。两组差异有显著统计学意义 (P <0 .0 1)。 结论　检测全血血锌和前列腺组织锌含量有助于临床鉴别前列腺良、恶性疾病     

984例儿童发锌含量的年龄分布

目的 :探讨儿童发锌含量的年龄分布。方法 :分析 984例儿童发锌含量的年龄构成比。结果 :正常组和锌缺乏组的性别差异和年龄构成差异有统计学意义 (P <0 .0 0 0 1) ,锌缺乏组儿童中 2岁以下幼儿的比例低 ,占 8.93 % ;3～ 6岁儿童的比例较高 ,占 61.81%。男性比例较高 ,占 64 .7%。     

年龄对血清PSA浓度的影响及其临床意义

为探讨年龄对血清PSA浓度的影响，以放免法测定不同年龄无前列腺疾患的93例男性血清PSA浓度，各年龄组的结果分别为：20～29岁1．19±0．9μg/L，30～39岁2．58±1．33μg/L，40～49岁2．39±2．00μg/L，50～59岁2．17±1．02μg/L，60～69岁2．89±2.11μg/L，70～79岁251±1．8μg/L。20～29岁的血PSA校各组均低，P＜0．05；而其余各年龄组间血PSA无显著性差异，P＞0．05。结论：30岁以后的血清PSA浓度不受年龄的影响，制定年龄相关的PSA正常范围的临床意义不大。     

东莞市市区儿童锌营养状况调查

目的　探讨东莞市市区儿童锌营养状况。方法　对东莞市市区幼儿园 5 70名 3～ 6岁儿童进行头发微量元素锌测定。结果　本地区儿童发锌含量为男 (76 5 1± 2 0 . 0 9) μg/g ,女 (87. 4 3± 2 3. 97) μg/g ,锌缺乏率为男5 9. 3% ,女 5 0. 4 %。结论　不同年龄、性别儿童之间头发锌含量存在一定差异 ,本地区儿童锌营养状况处于一个低水平 ,与饮食结构有关。     

武汉市2 421名学龄前儿童血锌原卟啉水平调查及干预

目的了解武汉市学龄前儿童血铅水平,探索集体儿童铅中毒干预方法。方法采用整群抽样方法,对武汉市六所幼儿园的2421名3～6岁在园儿童进行血锌原卟啉(ZPP)测定,同时进行医学干预。结果2421名3～6岁儿童血ZPP均值为(2.66±0.59)μg/(g·Hb),血ZPP值>2.98μg/(g·Hb)者784人,超标率32.4%,不同性别间血ZPP值无显著性差异,而以年龄分组的血ZPP值差异显著,3岁组明显高于6岁组。结论武汉市学龄前儿童血铅水平较高。建议将儿童血铅水平筛查及铅中毒防治纳入集体儿童保健工作常规。     

泸州地区男性不育症患者血清中锌铁铜镉锰含量的检测分析

目的 :探讨血清中微量元素水平与泸州地区男性不育症的关系。方法 :对 87例已确诊男性不育症的患者行常规精液检查 ,同时对其血清中锌、铁、铜、镉、锰的含量进行测定 ,并与 32例健康已育男性进行对照。结果 :不育症组血锌含量显著低于对照组 (P <0 .0 1) ,血铜含量高于对照组 (P <0 .0 5 ) ,血铜 锌比值降低 (P <0 .0 5 ) ,血镉 锌比值降低 (P <0 .0 1)。血铁、锰、镉含量在两组间无显著差异 (P >0 .0 5 )。不育症组中随精子数量的减少 ,血锌含量显著降低 ,血铜含量及血铜 锌比值明显升高 ,差异均有显著性 (P <0 .0 5 )。结论 :血锌含量的降低、血铜含量升高可能与泸州地区原发性男性不育症有关。测定血清中微量元素水平对男性不育症的诊治有指导意义     

T-PSA,F-PSA和F/T比值与年龄变化的关系

目的　研究正常成年男性血清前列腺特异抗原 (PSA)随年龄变化的关系及意义。方法　检测不同年龄段(包括 <5 0岁者 3 1例 ,5 0～ 5 9岁者 3 5例 ,60～ 69岁者 49例 ,≥ 70岁者 5 5例 )的正常男性血清总PSA(T -PSA)、游离PSA(F -PSA)浓度 ,计算F/T比值 ;同时检测 46例良性前列腺疾病患者和 2 9例前列腺癌患者血清T -PSA及F -PSA的水平及F/T比值 ,并与正常男性比较。结果　在正常成年男性中 ,年龄与血清中T -PSA及F -PSA显著相关 (P <0 0 1) ,有随年龄而增加的趋势 ,F/T比值虽有一定的波动 ,但与年龄无相关性 (P >0 0 5 )。不同年龄段第 95 %位数T -PSA水平分别为 <5 0岁者 1 92 μg/L ,5 0～ 5 9岁者 4 3 2 μg/L ,60～ 69岁者 7 10 μg/L ,≥ 70岁者 7 89μg/L ;F -PSA分别为 0 5 8,1 40 ,2 0 2 ,2 65 μg/L ,各年龄段间差异有显著性 (P <0 0 1) ;F/T比值分别为 0 3 0 ,0 3 2 ,0 2 9,0 3 2 ,各年龄段间差异无显著性 (P >0 0 5 )。 46例良性前列腺疾病患者T -PSA ,F -PSA及F/T比值分别为 ( 8 80± 16 16) μg/L ,( 1 67± 2 82 )μg/L ,0 2 1± 0 0 6;2 9例前列腺癌患者T -PSA及F -PSA分别为 ( 13 6 0 9± 198 0 2 ) ,( 13 74± 2 4 11) μg/L ,明显高于正常男性 (P <0 0 1) ,F/T比值为 0     

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.