实时荧光定量PCR检测肾透明细胞癌hIRS-1和hIRS-2的表达及临床意义

[目的]本研究检测hIRS-1 mRNA和hIRS-2 mRNA在肾透明细胞癌组织和对应癌旁正常组织中的表达,分析其与临床病理参数之间的关系,评价hIRS-1和hIRS-2的临床意义.[方法]应用实时荧光定量PCR法对hIRS-1及hIRS-2基因在43例肾透明细胞癌组织和对应癌旁正常组织中的表达进行检测,分析其与临床病理指标的关系.[结果]hIRS-1mRNA在肾透明细胞癌和癌旁组织中均存在表达,hIRS-1基因在肾透明细胞癌组织和对应癌旁正常组织中比较无显著差异(0.612±0.127vs 0.645±0.116,P>0.05);而hIRS-2基因在肾透明细胞癌中存在高表达,hIRS-2基因在肾透明细胞癌组织和对应癌旁正常组织中比较有显著差异(1.016±0.143 vs 0.792±0.136,P<0.05);hIRS-1 mRNA的表达与患者年龄、性别、肿瘤大小、病理分级及临床分期无关(P>0.05);hIRS-2 mRNA的表达与肿瘤大小及临床分期有关(P<0.05),与患者年龄、性别、及病理分级无关(P>0.05).[结论]hIRS-1 mRNA在肾透明细胞癌和癌旁组织中均存在表达,两者比较差异无统计学意义;MRS-2 mRNA在肾透明细胞癌中存在高表达,提示hIRS-2基因在肾透明细胞癌细胞癌变过程中可能发挥重要作用.     

Notch信号在肾透明细胞癌中的表达及意义

目的 观察Notch信号在肾透明细胞癌中的表达及临床意义.方法 采用Real-time PCR法检测32例肾透明细胞癌组织和32例癌旁正常肾组织Notch信号通路中Notch1及Jagged1的表达水平,分析其与临床病理指标之间的关系.结果 Notch1及Jagged1 mRNA在肾透明细胞癌组织的表达分别为(0.53±1.48)、(0.15士0.59),均低于正常肾组织(P＜0.05);Notch1 的表达与肿瘤临床分期、病理组织分级有关(P＜0.05).结论 Notch信号通路表达失调与肾癌的发生、发展密切相关.     

实时荧光定量PCR检测肾透明细胞癌hIRS-1和hIRS-2的表达及临床意义

 【目的】 本研究检测hIRS-1 mRNA和hIRS-2 mRNA在肾透明细胞癌组织和对应癌旁正常组织中的表达,分析其与临床病理参数之间的关系,评价hIRS-1和hIRS-2的临床意义&#65377;【方法】 应用实时荧光定量PCR法对hIRS-1及hIRS-2基因在43例肾透明细胞癌组织和对应癌旁正常组织中的表达进行检测,分析其与临床病理指标的关系&#65377;【结果】 hIRS-1 mRNA在肾透明细胞癌和癌旁组织中均存在表达,hIRS-1基因在肾透明细胞癌组织和对应癌旁正常组织中比较无显著差异(0.612 ± 0.127 vs 0.645 ± 0.116,P > 0.05);而hIRS-2基因在肾透明细胞癌中存在高表达,hIRS-2基因在肾透明细胞癌组织和对应癌旁正常组织中比较有显著差异(1.016 ± 0.143 vs 0.792 ± 0.136,P < 0.05);hIRS-1 mRNA的表达与患者年龄&#65380;性别&#65380;肿瘤大小&#65380;病理分级及临床分期无关(P > 0.05);hIRS-2 mRNA的表达与肿瘤大小及临床分期有关(P < 0.05),与患者年龄&#65380;性别&#65380;及病理分级无关(P > 0.05)&#65377;【结论】 hIRS-1 mRNA在肾透明细胞癌和癌旁组织中均存在表达,两者比较差异无统计学意义;hIRS-2 mRNA在肾透明细胞癌中存在高表达,提示hIRS-2基因在肾透明细胞癌细胞癌变过程中可能发挥重要作用&#65377; 关键词: 肾透明细胞癌; 实时荧光定量PCR; 胰岛素受体底物     

抑癌基因Pdcd4在肾透明细胞癌中的表达及生物学意义

目的研究Pdcd4 mRNA及蛋白在肾透明细胞癌中的表达及探讨其与肾肿瘤分期分级的关系。方法采用逆转录-聚合酶链反应（半定量RT-PCR）及免疫组织化学方法同时检测肾脏透明细胞癌及癌旁正常组织Pdcd4 mRNA及蛋白的表达情况。结果 Pdcd4 mRNA在肾癌及癌旁正常组织中均有表达,透明细胞癌中的表达低于癌旁正常组织。肾透明细胞癌Pdcd4蛋白表达阳性率为37.5%（15/40）,显著低于癌旁正常肾脏组织阳性表达率90%（18/20）,G1~G2期Pdcd4蛋白表达阳性率为56.5%（13/23）高于G3~G4期Pdcd4蛋白表达阳性率为11.7%（2/17）,两者差异有显著性（P〈0.05）。结论 Pdcd4基因在肾透明细胞癌中呈低表达,与肾癌的发生及恶性分化程度相关,作为抑癌基因,Pdcd4蛋白表达可作为判定肾透明细胞癌生物学行为的客观指标。     

膜细胞骨架蛋白-ezrin差异表达与肾癌转移、侵袭的关系

目的:探讨细胞骨架连接埃兹蛋白(Ezrin)在肾细胞癌中的表达及与肿瘤转移、侵袭的关系.方法:收集50例肾癌组织及40例相应癌旁正常肾组织,按肾癌组织(有无淋巴结转移,有无腔静脉瘤栓形成),癌旁正常肾组织,伴有淋巴结转移的肾癌组织,伴有腔静脉瘤栓形成的肾癌组织分组.采用RT-PCR,Western Blot,免疫组化检测ezrin的表达.结果:RT-PCR,Western Blot结果显示,在肾癌组织及癌旁正常肾组织中均可检测到ezrin mRNA及蛋白,且肾癌组织表达水平显著高于癌旁正常肾组织.免疫组化检测ezrin蛋白阳性表达率在肾癌组织中为96%(48/50),癌旁正常肾组织组为75%(30/40)(X2=10.350,P=0.002);ezrin mRNA表达阳性率肾癌组为82%(41/50),癌旁正常肾组织组为62.5%(25/40)(X2=4.321,P=0.038),肾痛组均显著高于癌旁正常肾组织组.免疫组化评分及ezrin mRNA阳性表达率,淋巴结转移组显著高于无淋巴结转移组[(9.500±2.502)vs(7.232±3.045),13/14 vs 16/36,P<0.05];腔静脉瘤栓形成组显著高于无腔静脉瘤栓形成组[(9.315±3.027)vs(7.563±2.991),14/14 vs 22/36,P<0.05].肾癌组织中ezrin蛋白,ezrin mBNA表达水平与患者的性别、年龄、肿瘤分期、分级、肿瘤大小及肿瘤病理类型无关(P>0.05).结论:ezrin在肾癌组织中表达及其强度与肾痛淋巴结转移及腔静脉瘤栓形成有关,ezrin可能参与了肾癌的发生、侵袭和转移,测定肾癌组织中ezrin mRNA及蛋白有助于进一步评估肾细胞癌的预后和制定合理的治疗方案.     

Expression of HDAC7 in renal cell carcinoma and its clinical significance

目的 检测并分析肾癌(透明细胞癌)组织中HDAC7 mRNA和蛋白的表达差异,探讨其与肾癌的发生、发展以及患者预后之间的关系.方法 应用实时荧光定量PCR和免疫组化法对60 例肾癌组织及20例正常肾组织中HDAC7的表达情况进行检测,并通过对患者随访,探讨其蛋白表达水平与肾癌临床病理学指标及患者预后之间的关系.结果 HDAC7在肾癌组织中的表达较正常肾组织明显增高,且与肾癌的病理分级和临床分期之间均呈负相关(P＜0.05).HDAC7低表达者的生存率低于HDAC7高表达者(P＜0.05).结论 HDAC7可能与肾癌的发生、发展有关,提示HDAC7可作为评估肾癌恶性程度及预后的肿瘤标志物.     

SATB1在肾透明细胞癌中的表达及临床意义

目的 检测肾透明细胞癌中特异AT序列结合蛋白1(SATB1)的表达,分析SATB1的表达与肾透明细胞癌的发生、进展及转移的关系及意义.方法 以RT-PCR法检测30例成对肾癌组织及癌旁正常组织、5例非癌肾组织、肾透明细胞癌786-O细胞株中SATB1 mRNA的表达,分析SATB1表达与临床病理参数的相关性.结果 SATB1在肾透明细胞癌癌组织及癌旁组织中均有表达,癌组织中SATB1 mRNA表达量显著高于癌旁组织(P＜0.05),SATB1在非癌肾组织中有微弱表达,SATB1 mRNA的表达随临床分期的升高而增加,并且在淋巴结转移组高于未转移组(P＜0.05).结论 SATB1 mRNA的表达水平增高与肾透明细胞癌的发生、发展及转移有关.     

FBP1在肾透明细胞癌组织中的表达变化及意义

目的 探讨果糖1,6二磷酸酶1(FBP1)在人肾透明细胞癌(RCCC)及其癌旁组织中的表达,以及在肾癌发生、发展及预后中的作用和临床意义.方法 选取手术切除的118例RCCC患者的石蜡切片和40例RCCC患者的新鲜标本,分别采用免疫组织化学方法、Western blot和逆转录聚合酶链反应(RT-PCR)方法检测肾癌及对应癌旁组织(阴性切缘)中FBP1蛋白及mRNA的表达,分析其与患者临床病理特征及预后的相关性.结果 免疫组织化学发现78.81％ (93/118)的癌旁组织中可见FBP1蛋白呈强阳性表达,仅39.83％(47/118)的肾癌组织中FBP1蛋白表达阳性.Western blot发现肾癌组织中FBP1的表达阳性率较其相应癌旁组织明显下降(P＜0.01).RT-PCR法发现癌旁组织FBP1 mRNA表达水平亦明显高于肾癌组织(P＜0.05).FBP1低表达与临床分期、病理分级、危险系数及是否复发明显相关(P＜0.05),与年龄、性别、症状及肿瘤大小、部位、是否有坏死、是否有血管侵犯和肾上腺是否有累及无关(P＞0.05).FBP1阳性表达的肾癌患者的5年生存率高于FBP1阴性表达者(P＜0.05).结论 FBP1及其蛋白在人肾癌组织中低表达,与肾癌的发生、发展相关,可能成为肾癌预后的侯选标志物之一.     

巨噬细胞移动抑制因子在肾癌中的表达及对肾癌细胞侵袭能力的影响

目的 探讨巨噬细胞移动抑制因子(MIF)在肾癌组织中的表达及对肾癌细胞侵袭能力的影响.方法 以内蒙古自治区人民医院和包头市肿瘤医院2013年3月至2015年3月病理室确诊的49例肾癌患者为研究对象,采用蛋白质印迹法(West-ern blot)及反转录(RT)-PCR法检测肾癌组织及癌旁正常组织、肾癌细胞株及正常肾小管上皮细胞HK 2中MIF蛋白及mRNA表达;利用脂质体将siRNA MIF及siRNA NC转染到肾癌细胞中,Western blot及RT-PCR检测转染效果,噻唑蓝(MTT)法检测细胞活力,Transwell法检测细胞侵袭能力,Western blot检测细胞中缺氧诱导因子-1α(HIF-1α)及基质金属蛋白酶9(MMP9)的表达.结果 肾癌组织中MIF蛋白及mRNA表达水平明显高于癌旁正常组织(0.89±0.09 vs.0.18±0.02,1.19±0.04 vs.0.19±0.01,P＜0.05),肾癌细胞株ACHN、769-p、786-O、Caki-1中MIF蛋白及mRNA表达水平明显高于肾小管上皮细胞HK-2(P＜0.05).与siRNA NC组比较,siRNA MIF组中MIF蛋白及mRNA表达水平明显下调(P＜0.05),细胞活力及侵袭能力降低(P＜0.05),HIF-1α及MMP9表达水平下调(P＜0.05).结论 MIF在肾癌中高表达,下调MIF表达能明显抑制肾癌细胞的侵袭能力,可能与抑制HIF-1α/MMP9信号通路有关.     

肾透明细胞癌的生物信息学分析

目的 研究肾透明细胞癌与癌旁组织的基因表达差异,探讨差异表达基因在肾透明细胞癌发生发展中的作用.方法 高通量测序分析肾透明细胞癌组织和癌旁组织的基因差异表达;实时荧光定量PCR及Western blot验证与代谢相关的基因.结果 生物信息学显示肾透明细胞癌中有40个ATP合成酶相关基因表达增加,实时荧光定量PCR及We...     

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.     

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.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.