LMP-1、FAS及FAS-L在组织细胞坏死性淋巴结炎中的表达

①目的探讨EB病毒、FAS及FAS-L在组织细胞坏死性淋巴结炎病因及发病机制中所起的作用及相互关系。②方法应用免疫组化S-P法对40例组织细胞坏死性淋巴结炎和10例反应性增生淋巴结组织中的EB病毒潜伏膜蛋白（LMP—1）、FAS及FAS-L蛋白的表达进行检测。③结果LMP—1、FAS、FAS-L在组织细胞坏死性淋巴结炎的表达均比对照组明显增高（x^2=4．188,P〈0．05）。LMP-1的表达与FAS及FAS-L呈正相关（x^2=4．365、4．000,P〈0．05）。④结论EB病毒是组织细胞坏死性淋巴结炎的发病原因之一,FAS与FAS—L介导的细胞毒性反应为引起EB病毒感染淋巴细胞凋亡的主要原因之一。     

CD123在组织细胞坏死性淋巴结炎中的表达及意义

目的:探讨CD123在组织细胞坏死性淋巴结炎(HNL)中的表达及在诊断和鉴别诊断中的价值。方法:对39例HNL患者淋巴结进行常规形态学观察和免疫组织化学标记,并以12例淋巴组织反应性增生性病变(RLH)、10例猫抓病(CSD)和12例弥漫性大B细胞淋巴瘤(DLBCL)淋巴结作为对照,比较CD123的表达。结果:CD123在组织细胞坏死性淋巴结炎中的阳性表达为89.74%,反应性淋巴组织增生性病变中为33.33%(P<0.01),猫抓病中为30%(P<0.01),弥漫性大B细胞性淋巴瘤中为16.67%(P<0.01),CD123在组织细胞坏死性淋巴结炎中表达的敏感性是89.74%,特异性是73.53%。结论:CD123在组织细胞坏死性淋巴结炎中具有较高的表达率,其敏感性和特异性较好,是诊断HNL较为理想的免疫标志物。     

肝细胞癌中潜伏膜蛋白-1的表达及意义

目的 探讨EB病毒潜伏膜蛋白-1(LMP1)在肝细胞癌(HCC)中的表达及意义.方法 应用免疫组织化学SP法,对石蜡包埋的50例HCC组织(HCC组)和10例正常肝组织(对照组)标本检测LMP1的表达.结果 (1)LMP1阳性表达率HCC癌组织(38%)和癌旁肝硬化组织(38.9%)均高于癌旁非肝硬化组织和正常对照组(均为0,P＜0.05);(2)HCC癌组织中LMP1阳性表达率在Ⅲ～Ⅳ(51.7%)高于Ⅰ～Ⅱ期(19.0%,P＜0.05),有门静脉癌栓形成(50%)高于无门静脉癌栓形成(16.7%,P＜0.05).结论 EB病毒LMP1与HCC病期进展及有无门静脉癌栓形成密切相关,可作为估计HCC患者预后的参考指标.     

组织细胞性坏死性淋巴结炎15例临床分析

组织细胞性坏死性淋巴结炎 (histiocyticnecrotizinglym phabenitis ,HNL) ,又名坏死性淋巴结炎、亚急性坏死性淋巴结炎、坏死增生性淋巴结炎、Kikuchi坏死性淋巴结炎。HNL是一种多见于青年人的良性自限性疾病。 1972年首先由日本人Kikuchi和Fujimoto描述。由于本病病因不清 ,临床表现无特异性 ,易与淋巴瘤、淋巴结炎、淋巴结核、传染性单核细胞增多症、恶性组织细胞增生症等相混淆 ,误诊率高达 30 %～4 0 % [1] 。为了提高对本病的认识和诊疗水平 ,现将我院1993— 2 0 0 0年的 15例经临床和病理确诊为组织细胞性坏死性淋巴结炎的病例资…     

血管免疫母细胞性淋巴结病病变性质的研究

①目的　通过对血管免疫母细胞性淋巴结病 (AIL)较系统的研究 ,进一步认识AIL的病变性质 ,探讨其可能的发病机制和病因 ,筛选对判定AIL病变性质有临床实用价值的方法和指标。②方法　在临床病理研究的基础上 ,采用PCR技术、免疫组化技术、图像分析技术 ,对 4 4例符合AIL组织学诊断标准病例的免疫表型、基因重排、bcl 2 /IgH融合基因、EBV DNA、DNA含量、P5 3蛋白、bcl 2、c myc、EB病毒潜伏膜蛋白 (LMP 1 )、PCNA等多项指标进行检测分析 ;同时选择非何杰金淋巴瘤 (NHL) 2 0例和淋巴结反应性增生 1 0例作为对照。③结果4 4例AIL的临床表现十分复杂 ,呈多系统、多脏器受累的复杂的临床表现 ;有在某季节 (春季 )集中发病的倾向。AIL的免疫表型表现为以T细胞增生为主。在组织学上 ,AIL表现为良恶性增生兼有的特征 ,片巢状透明细胞增生的出现是诊断恶性的组织学特征。 4 4例AIL中有 1 6例 (36 .7% )为克隆性基因重排阳性 ,其中 1 2例为TCRγ克隆性重排 ,2例为IgH克隆性重排 ,2例为TCRγ和IgH双重排 ,其克隆性重排的检出率在AIL、NHL和反应性增生间的差异均有显著意义 (χ2 =8.2 1 8～ 2 6 .0 36 ,P <0 .0 1 )。 4 4例AILP5 3蛋白阳性表达率为 31 .8% ,2 0例NHLP5 3蛋白阳性表达率为 70 .0 % ,反应性增生者无     

免疫母细胞淋巴结病及非霍奇金病中c-myc蛋白的表达

①目的　探讨c myc基因产物的表达在免疫母细胞淋巴结病 (AILD)及非霍奇金病 (NHL)发生中的意义。②方法　应用免疫组织化学方法检测 4 6例AILD和 2 0例NHL病人中c myc蛋白的表达 ,同时选择 15例反应性增生的淋巴结作为对照研究。③结果　AILD ,NHL及反应性增生的淋巴组织中c myc蛋白表达的阳性率分别为82 .6 1% ,85 .0 0 % ,4 0 .0 0 % ,AILD及NHL组织中c myc蛋白表达的阳性率显著高于反应性增生的淋巴组织 (χ2 =8.2 0 6 ,P <0 .0 5 ;P =0 .0 11)。④结论　c myc蛋白的过度表达与AILD和NHL的发生有关 ,同时c myc蛋白的表达并不是恶性肿瘤的特异性现象 ,而是对细胞增生活跃程度的反映。     

海南地区淋巴组织增生性病变病理分型与EBV感染的相关性分析

目的 分析海南地区淋巴组织增生性病变的病理分型及其与EB病毒感染的关系.方法 收集我院最近5年淋巴组织增生性病变共524例,并对其中有完整资料的214例病例应用EB病毒编码小RNA （EBER）原位杂交检测淋巴组织中EB病毒（EBV）感染情况,分析EBV与不同类型淋巴瘤和淋巴结反应性增生的关系.结果 157例淋巴瘤进行了EBER检测,共有40例EB病毒（EBV）阳性,阳性率为25.48％,199例淋巴结反应性增生病变中,57例进行了EBER原位杂交检测,其中仅3例与EBV感染有关,阳性率为5.26％.结论 EBV与淋巴瘤,特别是T细胞淋巴瘤的发生有一定关系,以副皮质区增生为主的淋巴结反应性增生可能与EBV感染有关.     

淋巴结外T细胞性淋巴瘤EB病毒感染CD56表达关系的研究

目的:研究淋巴结外T细胞性淋巴瘤(T-ce ll Lymphoma,TCL)中Epstein-Barr病毒(EB病毒)感染情况及其同CD56表达关系.方法:对15例淋巴结反应性增生和33例淋巴结外T细胞性淋巴瘤应用原位杂交法检测EBERs和免疫组织化学法检测表面抗原CD56的表达.结果:淋巴结外T细胞性淋巴瘤中EBERs和CD56表达率分别为63.6%(21/33)和24.2%(8/33),淋巴结反应性增生中EBERs和CD56阳性表达率分别为0%(0/15)和26.7%(4/15).EBERs和CD56表达无相关性(P>0.05).结论:表明EB病毒高度感染淋巴结外T细胞性淋巴瘤,可能是其发生的一个重要因素,但EB病毒感染同CD56表达无关.     

鼻NK/T细胞淋巴瘤生存素基因表达与细胞凋亡和增殖的关系

目的 :探讨凋亡抑制基因生存素 (Survivin)在鼻NK/T细胞淋巴瘤中的表达 ,及其与细胞凋亡和增殖的关系。方法 :应用TdT介导的dUTP缺口末端标记 (TUNEL)技术和免疫组织化学链霉素抗生物素 过氧化酶连接法 (SP法 )检测 2 5例鼻NK/T细胞淋巴瘤组织和 10例反应性增生淋巴组织中的细胞凋亡、增殖细胞核抗原 (PCNA)和Sur vivin基因表达水平。结果 :2 5例鼻NK/T细胞淋巴瘤组织中Survivin表达阳性 17例 (6 8.0 0 % ) ,10例反应性增生淋巴组织中Survivin不表达 ,差异有显著性 (P <0 .0 1)。 2 5例鼻NK/T细胞淋巴瘤中平均凋亡指数 (AI)为 1.92 %± 0 .86 % ,平均增殖指数 (PI)为 4 1.4 8%± 5 .10 % ;Survivin表达阳性组AI(1.71%± 0 .6 1% )显著低于阴性组 (2 .2 9%± 0 .72 % ) ,PI(4 3.35 %± 4 .80 % )显著高于阴性组 (37.5 0 %± 2 .90 % ) ,差异均有显著性 (P <0 .0 5 ,P <0 .0 1)。结果 :鼻NK/T细胞淋巴瘤中Survivin基因表达上调 ,Survivin基因可能通过肿瘤细胞凋亡的抑制和细胞增殖参与NK/T细胞淋巴瘤的发生发展。     

组织细胞性坏死性淋巴结炎与恶性淋巴瘤部分检测指标比较

组织细胞性坏死性淋巴结炎又称亚急性坏死性淋巴结炎 ,临床表现为亚急性过程 ,持续高热 ,颈淋巴结大 ,应用抗生素无明显效果 ,常被误诊为网状细胞增生症、恶性淋巴瘤或其他恶性病变。本文分析 2 4例组织细胞性坏死性淋巴结炎的部分实验室指标检测结果 ,并与 2 0例恶性淋巴瘤进行比较。现报告如下。1　临床资料1 .1　一般资料2 4例组织细胞性坏死性淋巴结炎均为胜利油田中心医院 1 980～ 1 999年住院病人 ,男 1 0例 ,女 1 4例 :年龄 1 4～ 42岁 ,平均 2 4 .9岁。所有病人均因淋巴结大伴发热就诊。其中单纯颈淋巴结大者 2 1例 ,颈部及腋窝淋巴…     

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.