可溶性P185蛋白在卵巢癌中的诊断价值

溶血磷脂酸（IJPA）可用于卵巢癌的早期诊断,但不适于肿瘤的侵袭性及预后的判断。P185是癌基因HER-2／neu或c-erbB-2编码的分子量185000跨膜生长因子受体的糖蛋白,可以释放入血中。血清中可溶性P185蛋白（SPl85）用于卵巢癌的检测少有报道。我们通过检测不同病程卵巢癌患者SPl85及LPA和CAl25血清水平,探讨联合检测这3项指标对卵巢癌诊断及预后判断的价值。     

家兔动脉粥样硬化与血小板源内皮型氧化氮合酶表达的相关性

Objective To explore the correlation of atheroselerosis progression and the expression of platelet derived endothelial nitric oxide synthase (eNOS) in rabbits. Methods A total of 24 male New Zealand white rabbits were used in this study. Six of the animals were fed with normal food (control group). Eighteen rabbits were fed with cholesterol-rich food (1 g/d) for 12 weeks to establish the atherosclerosis model. Among 18 models, 6 rabbits were executed immediately and their aorta and platelet samples were collected for further analysis (model group), 6 rabbits were orally administered with pravastatin (10 rag/d) for additional 12 weeks (treated group), and the remaining 6 rabbits were left untreated until the end of the study (untreated group). The control, treated and untreated animals were then killed, and the aorta and platelet samples were collected for eNOS expression analysis (RT-PCR). Results The aorta samples in model and untreated group exhibited rough intima and a lot of longitudinal fatty streaks, which indicated that atherosclerosis models were established successfully. While in treated group, the degree of atherosclerosis was decreased. The average percent of thickness of fatty streaks or atheroselerotic plaques relative to the whole thickness of vessel walls was 0. 04±0. 02, 0. 82±0. 16, 0. 33±0. 18,0. 77±0. 14 in control, model, treated and untreated group, respectively. The thickness of fatty streaks or atherosclerotic plaques was significantly increased in the model and untreated groups and decreased in treated group compared with the control group (both P<0. 05). The expressions of platelet derived eNOS/mRNA were 1. 02± 0. 28, 0. 41± 0. 27, 1.00 ± 0. 77, 0. 40±0. 29 in control, model, treated and untreated group, respectively. The expression of eNOS/mRNA was markedly decreased in model group and untreated group compared with the control group, but was increased in treated group compared with untreated and model groups (F=3. 544, P = 0. 024). Conclusions There is a negative correlation between eNOS expression and atherosclerosis development, which suggests that the reversal effect of pravastatin on atheroselerosis progression and plaque formation may relate to the expression of platelet derived eNOS.     

国产霉酚酸酯治疗原发性局灶节段性肾小球硬化20例

目的观察原发性局灶节段性肾小球硬化（FSGS）患者应用激素加霉酚酸酯（MMF）治疗的效果。方法对20例FSGS患者用MMF 1.5～2.0 g/d加激素口服治疗3个月后,渐减量至0.5～1.0 g/d维持。半年后测内生肌酐清除率、血清白蛋白,24 h尿蛋白定量,并与同期给予激素治疗的20例患者进行比较。结果激素加霉酚酸酯治疗组6个月后,内生肌酐清除率下降速率较对照组减慢,蛋白尿减少,血清白蛋白上升。结论治疗局灶节段性肾小球硬化,使用激素加霉酚酸酯等药物的疗效优于单独口服足量激素疗法的疗效,可缩短足量激素的疗程,增加FSGS的缓解率,减少激素的不良反应。     

特发性血小板减少性紫癜242例临床分析

目的:总结儿童和成人特发性血小板减少性紫癜(idiopathicthrombocytopenicpurpura,ITP)患者的临床特点。方法:对242例ITP患者的临床资料进行回顾性分析。结果:儿童ITP组,140例,男女比例为1.5∶1,急性型87例(62.1%),起病前50.7%有诱因,治疗前血红蛋白为(121±16)g/L;成人ITP组,102例,男女比例为1∶3.6,74.5%为慢性型,仅15.7%发病前有诱因,治疗前血红蛋白量为(108±30)g/L。两者的性别构成、分型、起病诱因、血红蛋白量比较有统计学意义(P<0.05)。无论儿童还是成人ITP,治疗前骨髓巨核细胞数增多者的疗效明显优于巨核细胞数正常或减少者(均为P<0.05)。随访病例中31例(78%)儿童ITP痊愈,2例(5%)成人ITP痊愈。结论:儿童ITP通常起病急、病情可自行缓解,预后好;成人ITP起病隐袭,多呈慢性经过,病情反复发作。ITP患者治疗前骨髓巨核细胞数增高者比正常或减少者疗效好,检查骨髓巨核细胞数有助于临床判断疗效。     

模拟微重力下三维培养的大鼠甲状旁腺细胞与睾丸塞尔托利细胞联合移植

目的 观察模拟微重力条件下三维培养的大鼠甲状旁腺细胞与同系睾丸塞尔托利细胞联合移植后的分泌功能,以及移植物存活情况.方法 取SD大鼠的甲状旁腺细胞,分别进行常规培养和模拟微重力条件下三维培养;取SD大鼠睾丸塞尔托利细胞,进行常规培养.取Wistar大鼠作为移植受者,制备甲状旁腺功能低下症模型.用随机数字表法将建模成功的Wistar大鼠分为3组:A组大鼠接受常规培养的单纯甲状旁腺细胞移植;B组大鼠接受常规培养的甲状旁腺细胞联合睾丸塞尔托利细胞移植;C组大鼠接受经三维培养的甲状旁腺细胞联合睾丸塞尔托利细胞移植.移植后观察各组移植物的存活情况,并检测移植物的细胞成分,淋巴细胞凋亡及甲状旁腺细胞功能.结果 A组、B组和C组移植物的存活时间依次延长,分别为(17.3±1.6)d、(43.2±2.4)d和(52.5±1.5)d,3组间两两比较,差异均有统计学意义(P＜0.05).C组移植物内甲状旁腺细胞已长入支架材料内部,并与之紧密结合,甲状旁腺激素分泌旺盛;还可见大量散在的、Fas配体表达阳性的睾丸塞尔托利细胞;在移植物与肾实质交界处可见大量淋巴细胞凋亡.结论 模拟微重力条件下三维培养技术与具有免疫赦免作用的睾丸sertoli细胞共同应用于甲状旁腺细胞移植,可以提高移植后甲状旁腺细胞的分泌功能,延长移植物的存活时间.

Abstract：

Objective To observe the function and survival of parathyroid cells cultured under simulated microgravity condition after cotransplanation of syngeneic allogeneic testicular sertoli cells.Methods Parathyroid cells in SD rats were assigned to flask-culture or bioreactor-culture.Allogeneic testicular sertoli cells in SD rats were cultured by using routine method.The recipients of hypoparathyroidism Wistar rat models were divided into 3 groups randomly:group A,receiving parathyroid cells(cultured with routine method)transplantation only;group B,receiving parathyroid cells and allogeneic testicular sertoli cells(cultured with routine method)transplantation;group C,receiving parathyroid cells(cultured under simulated microgravity condition)and allogeneic testicular sertoli cells transplantation.Allograft survival,change in cell components,apoptosis of infiltrative lymphocytes and parathyroid cells function were analyzed after transplantation respectively.Results The average survival time in group A,B and C was(17.3±1.6),(43.2±2.4)and (52.5±1.5)days,respectively.There was significant difference among group (P<0.05).In group C,parathyroid cells with strong secreting function grew into scaffold materials and adhered to them.FasL-expressing testicular cells and apoptotic lymphocytes were quite evident between allograft and kidney parenchyma.Conclusion Parathyroid cell cultured under simulated microgravity condition enhances its survival and function after cotransplanation of allogeneic testicular sertoli cell with immune privilege.     

家兔动脉粥样硬化与血小板源内皮型氧化氮合酶表达的相关性

Objective To explore the correlation of atheroselerosis progression and the expression of platelet derived endothelial nitric oxide synthase (eNOS) in rabbits. Methods A total of 24 male New Zealand white rabbits were used in this study. Six of the animals were fed with normal food (control group). Eighteen rabbits were fed with cholesterol-rich food (1 g/d) for 12 weeks to establish the atherosclerosis model. Among 18 models, 6 rabbits were executed immediately and their aorta and platelet samples were collected for further analysis (model group), 6 rabbits were orally administered with pravastatin (10 rag/d) for additional 12 weeks (treated group), and the remaining 6 rabbits were left untreated until the end of the study (untreated group). The control, treated and untreated animals were then killed, and the aorta and platelet samples were collected for eNOS expression analysis (RT-PCR). Results The aorta samples in model and untreated group exhibited rough intima and a lot of longitudinal fatty streaks, which indicated that atherosclerosis models were established successfully. While in treated group, the degree of atherosclerosis was decreased. The average percent of thickness of fatty streaks or atheroselerotic plaques relative to the whole thickness of vessel walls was 0. 04±0. 02, 0. 82±0. 16, 0. 33±0. 18,0. 77±0. 14 in control, model, treated and untreated group, respectively. The thickness of fatty streaks or atherosclerotic plaques was significantly increased in the model and untreated groups and decreased in treated group compared with the control group (both P<0. 05). The expressions of platelet derived eNOS/mRNA were 1. 02± 0. 28, 0. 41± 0. 27, 1.00 ± 0. 77, 0. 40±0. 29 in control, model, treated and untreated group, respectively. The expression of eNOS/mRNA was markedly decreased in model group and untreated group compared with the control group, but was increased in treated group compared with untreated and model groups (F=3. 544, P = 0. 024). Conclusions There is a negative correlation between eNOS expression and atherosclerosis development, which suggests that the reversal effect of pravastatin on atheroselerosis progression and plaque formation may relate to the expression of platelet derived eNOS.     

雌激素对过氧化氢诱导的大鼠骨髓间充质干细胞凋亡的影响

目的探讨雌激素抑制过氧化氢（H2O2）诱导的大鼠骨髓间充质干细胞凋亡的作用及机制,为临床骨髓间充质干细胞治疗冠心病有较高的干细胞存活率提供理论依据。方法流式细胞仪检测干细胞免疫表型;MTY法检测细胞活性;Rhodamine-123染色检测线粒体膜电位;RT-PCR检测Caspase-9的表达。结果H2O2促进干细胞凋亡,而雌激素可提高干细胞的活性,降低细胞线粒体膜电位,抑制Caspase-9的表达进而抑制细胞凋亡。结论雌激素可有效抑制氧化应激诱导的大鼠骨髓间充质干细胞的凋亡。     

神昌注射液对脑栓塞大鼠ET CGRP及血脑通透性的影响

目的:探讨神昌注射液对缺血再灌注脑损伤大鼠内皮素、降钙素基因相关肽及血脑通透性的影响。方法:MCAO法造成大鼠脑缺血再灌注损伤模型,静脉给药7次,采用放射免疫法测定血浆内皮素、降钙素基因相关肽含量,并测定血脑通透性。结果:神昌注射液能明显降低血浆内皮素含量,升高降钙素基因相关肽含量,对血脑通透性则无明显影响。结论:神昌注射液有舒张脑血管,改善脑供血的作用,但对血脑通透性影响不大。     

充血性心力衰竭患者T淋巴细胞亚群和白介素-6的表达

目的探讨充血性心力衰竭(CHF)患者T淋巴细胞亚群和白介素-6(IL-6)表达的变化。方法选择NYHAⅡ~Ⅳ级的CHF患者48例作为观察组,30例健康查体者作为对照组。应用流式细胞仪测定全血T细胞亚群数目,并应用酶联免疫吸附法测定血清、培养上清中IL-6的含量。结果与正常对照组相比,(1)CHF患者CD3 、CD4 和CD4 /CD8 显著降低(P<0·01),并均与心衰程度呈负相关(r=-0·976、-0·826、-0·881,P<0·01),CD8 显著增加(P<0·01),与心衰程度呈正相关(r=0·890,P<0·01);(2)CHF患者血清和培养上清中IL-6显著增加(P<0·01),并均与心衰程度呈正相关(r=0·988、0·984,P<0·01)。结论T细胞亚群数目异常和IL-6表达增加可能是CHF患者免疫功能异常的机制之一,调节细胞免疫功能治疗可能改善CHF患者的预后。