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受体,生长抑素

受体,生长抑素的相关文献在2001年到2021年内共计74篇,主要集中在肿瘤学、特种医学、基础医学 等领域,其中期刊论文74篇、专利文献59228篇;相关期刊37种,包括中国病理生理杂志、国际检验医学杂志、中华肝脏病杂志等; 受体,生长抑素的相关文献由283位作者贡献,包括汪静、王峰、唐承薇等。

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论文:59228 占比:99.88%

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受体,生长抑素—发文趋势图

受体,生长抑素

-研究学者

  • 汪静
  • 王峰
  • 唐承薇
  • 王自正
  • 邓敬兰
  • 华赟鹏
  • 姚薇萱
  • 李绍强
  • 李险峰
  • 杨志
  • 期刊论文
  • 专利文献

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    • 谭惠文; 覃萌; 余叶蓉; 李建薇; 蔡博文; 姜曙
    • 摘要: 肢端肥大症是以生长激素(GH)分泌异常增多为特征的内分泌疾病,而过度分泌的GH和胰岛素样生长因子1(IGF-1)可对全身多个器官和系统产生广泛影响.肢端肥大症常起病隐匿、进展缓慢、临床症状复杂多样,其诊断和治疗有待进一步规范.2021年2月Pituitary发表了《垂体协会肢端肥大症诊治指南更新》,本文立足于最新的循证医学证据,对该指南提及的包括肢端肥大症的临床表现、流行病学情况、手术治疗的影响因素、患者的生活质量、药物治疗进展与更新、放射治疗为主的几个方面进行了解读,并着重介绍了美国食品药品监督管理局(FDA)批准的新型疗法的优势与局限性,以期能够提高广大全科医生及专科医师对于肢端肥大症的理解,更好地指导规范化诊疗,改善肢端肥大症患者预后.
    • 冯柳; 吴爽; 金晨涛; 田梅
    • 摘要: 神经内分泌肿瘤(NETs)是一类起源于神经内分泌细胞的异质恶性肿瘤,分化良好的NETs可过度表达生长抑素受体(SSTR).放射性同位素标记的生长抑素类似物与SSTR的特异性结合可实现NETs的功能成像,对NETs的诊断及其患者的临床管理具有重要意义.近年来,研究者已成功研发出多种靶向SSTR的示踪剂并应用于临床,笔者总结了用于SPECT和PET的SSTR显像剂在NETs中的临床应用及其研究进展.
    • 曾成润; 夏雨霄; 傅文会; 王映伟; 李子博; 陈跃
    • 摘要: 目的 探索177Lu标记1,4,7-三氮杂环壬烷-1,4,7-三乙酸(NOTA)-D-苯丙氨酸1-酪氨酸3-苏氨酸-8-奥曲肽(TATE)的最佳条件,评价标记物的生物学性质并行小鼠显像.方法 通过改变反应温度、pH值、反应时间等,实现177Lu-NOTATATE的快速制备,确定最佳标记条件,测定其放化纯、体外稳定性、血浆蛋白结合率及脂水分配系数.取24只正常昆明小鼠,用随机数字表法分为6组,经尾静脉注射3.7 MBq 177Lu-NOTATATE后,分别于0.5、1、4、24h及4、6d处死,检测体内生物分布[每克组织百分注射剂量率(%ID/g)].取6只正常小鼠,随机(方法同上)分为2组,分别给予11.1 MBq 177 Lu-NOTATATE与177Lu-1,4,7,10-四氮杂环十二烷-1,4,7,10-四乙酸(DOTA)TTATE注射,于注射后1、2、3h行SPECT平面显像.另取8只小鼠分4组(3.7、7.4、18.5 MBq 177Lu-NOTATATE和生理盐水注射)进行毒性实验研究.结果 反应温度95~100°C、反应时间15 min、pH值为5为最佳标记条件.在该条件下,产物177Lu-NOTATATE的标记率>98%,在人血清中放置24h后放化纯仍>95%.血浆蛋白结合率为(58.6±1.9)%,脂水分布系数为0.048±0.014.在正常小鼠体内,放射性主要在肝、肾、脾浓聚,尤以肾浓聚较多[注射后0.5 h即达(29.120±1.204) %ID/g],在血液中分布少,并且迅速排泄.显像结果示,与177Lu-DOTATATE比较,177Lu-NOTATATE经肾排泄更快.毒性实验中,各组小鼠均未观察到明显损害,器官组织切片也未见明显损伤或炎性改变.结论 确定了177Lu-NOTATATE的最佳标记条件,标记产物理化性质及生物学性能良好且安全,经肾排泄快于177Lu-DOTATATE;该研究为进一步的临床转化研究打下了基础.
    • 张紫薇; 程刚
    • 摘要: 嗜铬细胞瘤(PCC)是一种罕见的神经内分泌肿瘤(NET),准确的定位诊断是进行治疗的关键.目前包括放射性碘标记的间碘苄胍(MIBG)扫描、PET、放射性核素标记的生长抑素类似物(SSTR)扫描等核医学功能显像对PCC的诊断有较高的价值.同时,放射性碘标记的MIBG及肽类受体介导的放射性核素治疗对于PCC的姑息性治疗也有一定价值.笔者对放射性核素在PCC诊断与治疗中的应用进行综述,以期为临床制定个性化治疗方案提供帮助.%Pheochromocytoma(PCC) is a rare neuroendocrine tumor(NET),and accurate diagnosis is the key to treatment.At present,including radioactive iodine markers of iodine benzyl (MIBG) guanidine scanning,positron emission tomography(PET),radioactive nuclide labeled somatostatin analogue nuclear medicine functions such as scanning imaging in the diagnosis of pheochromocytoma have higher value.At the same time,the radionuclide therapy mediated by iodide and peptide receptor also has certain value in the palliative treatment of pheochromocytoma.The application of radionuclides in the diagnosis and treatment of pheochromocytoma was reviewed in order to provide help for the development of individualized treatment.
    • 谢卿; 朱华; 刘特立; 郭晓轶; 于江媛; 杨志
    • 摘要: 目的 制备生长抑素受体(SSTR)拮抗剂68Ga-1,4,7-三氮杂环壬烷-1,4,7-三乙酸(NOTA)-JR11,并行生物分布和microPET显像研究.方法 将1 ml含68GaCl3(148 MBq)的HCl(0.05 mol/L)加入至65μl NaAc缓冲液(1 mol/L)和4μg前体NOTA-JR11中,95°C反应15 min,经Sep-Pak?C18 Light柱纯化后得到68 Ga-NOTA-JR11.采用放射性高效液相色谱法对68 Ga-NOTA-JR11进行质量控制分析,测定放化纯和体外稳定性等.取BALB/c小鼠9只,分别注射0.37 MBq 68 Ga-NOTA-JR11,观察注射后5、30和60 min时药物的生物分布(每个时间点3只),计算每克组织百分注射剂量率(%ID/g);另取BALB/c小鼠1只,注射14.8 MBq 68 Ga-NOTA-JR11,观察注射后60 min时microPET显像情况.结果 成功制备68 Ga-NOTA-JR11,标记用时15 min,产率为90%,纯化后的放化纯大于99%,比活度为6.10 GBq/μmol,在多种缓冲溶液中放置150 min内放化纯仍在95%左右.体内生物分布与microPET显像结果基本一致,药物主要经肾脏代谢,注射后60 min肝脏摄取较低,为(0.75±0.26)%ID/g.结论 68 Ga-NOTA-JR11具有制备快速、产率高、放化纯高等特点,其生物分布和显像结果可为神经内分泌肿瘤SSTR显像研究提供进一步的基础信息.%Objective To prepare a novel somatostatin receptor (SSTR) antagonist 68Ga-1,4,7-triazacyclononane-1,4,7-triacetic acid (NOTA)-JR11 (Cpa-c(D-Cys-Aph(Hor)-D-Aph(Cbm)-Lys-Thr-Cys)-D-Tyr-NH2 ) tracer and observe its biodistribution and microPET imaging in mice. Methods One ml HCl (0.05 mol/L) containing 68GaCl3(148 MBq) was added into 65μl NaAc (1 mol/L) and 4μg NOTA-JR11. The mixture reacted at 95 °C for 15 min, and then was purified with Sep-Pak? C18 Light column to obtain 68 Ga-NOTA-JR11. 68 Ga-NOTA-JR11 was subjected to quality control analysis including radiochemical purity and in vitro stability by radio-high performance liquid chromatography. Biodistribution of 68Ga-NOTA-JR11 (0.37 MBq) in BALB/c mice (n=9) at 5, 30, 60 min postinjection were observed (n=3 for each time point), and the percentage activity of injection dose per gram of tissue (%ID/g) was calculated. 68Ga-NOTA-JR11 (14.8 MBq) microPET imaging of BALB/c mice (n=1) at 60 min postinjection was observed. Results 68 Ga-NOTA-JR11 was obtained successfully within 15 min, with yielding rate of 90%, radiochemical purity of more than 99%, and specific activity of 6. 10 GBq/μmol. The tracer showed excellent stability ( radio-chemical purity:95%) in different buffers within 150 min. The biodistribution was basically consistent with microPET imaging results. 68 Ga-NOTA-JR11 was metabolized through the kidneys and had low uptake in the liver ((0.75±0.26) %ID/g) at 60 min postinjection. Conclusions 68 Ga-NOTA-JR11 can be prepared rapidly, with high yielding rate and radiochemical purity. Biodistribution and imaging results provide basic information for the further study of somatostatin receptor imaging in neuroendocrine tumors.
    • 朱峰; 冯晓海; 安月
    • 摘要: Objective To investigate the expression of somatostatin receptors (SSTRs) in hepatocellular carcinoma (HCC) tissue and its association with clinicopathological features and prognosis of HCC.Methods HCC samples were collected from 80 patients who visited Third Hospital of PLA and Department of Hepatobiliary Surgery in The Second Affiliated Hospital of Dalian Medical University and who underwent hepatectomy from July 2012 to December 2014 and were diagnosed with HCC based on postoperative pathology (trial group).Another 80 patients who were suspected of liver disease and were not diagnosed with HCC by liver biopsy were enrolled as control group.RT-PCR and immunohistochemistry were used to measure the mRNA and protein expression of SSTR-2 and SSTR-3.The t-test was used for comparison of continuous data between groups,the chi-square test was used for comparison of categorical data between groups,the Kaplan-Meier method was used to analyze patients' survival,and the Cox regression analysis was used to investigate the influencing factors for the prognosis of HCC patients.Results The control group had significantly higher mRNA and protein expression of SSTR-2 and SSTR-3 than the trial group (t =6.456 and 8.128,x2 =7.992 and 9.157,all P < 0.05).The univariate analysis showed that the mRNA expression of SSTR-2 and SSTR-3 was significantly correlated with tumor nodule (t =6.533 and 5.041,both P < 0.05),degree of tumor differentiation (t =4.672 and 4.013,both P < 0.05),depth of infiltration (t =6.735 and 7.019,both P < 0.05),viral hepatitis (t =4.929 and 4.535,both P < 0.05),alcoholic hepatitis (t =4.032 and 4.362,both P < 0.05),and diabetes (t =4.372 and 6.293,both P < 0.05),and the protein expression of SSTR-2 and SSTR-3 was significantly correlated with tumor nodule (x2 =25.223 and 15.399,both P < 0.05),degree of tumor differentiation (x2 =7.535 and 10.944,both P < 0.05),and depth of infiltration (x2 =22.520 and 9.968,both P < 0.05).Compared with the group with positive expression of SSTR-2 and SSTR-3,the group with negative expression had significantly lower cumulative postoperative disease-free survival rate (P =0.015 and 0.004) and postoperative overall survival rate (P =0.009 and < 0.001).The Cox model analysis showed that protein expression of SSTR-2 and SSTR-3,the number of tumor nodules,liver cirrhosis,and vein infiltration in HCC tissue were independent risk factors for overall survival after HCC surgery (P < 0.05).Conclusion HCC patients have lower expression of SSTR-2 and SSTR-3 than non-HCC patients,and such low expression is closely associated with invasion/metastasis and poor prognosis of HCC.SSTRs may be the markers for the prognosis of HCC.%目的 研究生长抑素受体(SSTR)在肝细胞癌组织中表达水平及其与肝细胞癌临床病理特征及预后的关系.方法 所有肝细胞癌标本取自2012年7月-2014年12月就诊于解放军第三医院及大连医科大学附属二院肝胆科行切除术后经病理组织学检查证实为HCC的患者(n=80,试验组),另选取同期疑似肝部疾病且行肝穿刺确诊的非肝细胞癌患者(n=80,对照组).采用RT-PCR检测SSTR-2、SSTR-3 mRNA水平,采用免疫组化检测SSTR-2、SSTR-3蛋白表达的水平.计量资料组间比较采用t检验,计数资料组间比较采用x2检验,Kaplan-Meier法分析患者生存情况,Cox分析肝细胞癌患者预后的影响因素.结果 对照组SSTR-2、SSTR-3 mRNA及蛋白均显著高于试验组(t值分别为6.456、8.128,x2值分别为7.992、9.157,P值均<0.05).单因素分析显示,SSTR-2和SSTR-3 mRNA与肿瘤结节(=6.533、5.041,P值均<0.05)、分化程度(t=4.672、4.013,P值均<0.05)、浸润深度(t=6.735、7.019,P值均<0.05)、病毒性肝炎(t=4.929、4.535,P值均<0.05)、酒精性肝炎(=4.032、4.362,P值均<0.05)、糖尿病(=4.372、6.293,P值均<0.05)等显著相关;SSTR-2和SSTR-3蛋白与肿瘤结节(x2=25.223、15.399,P值均<0.05)、分化程度(x2=7.535、10.944,P值均<0.05)、浸润深度(x2=22.520、9.968,P值均<0.05)密切相关.SSTR-2和SSTR-3阴性表达组的累积术后无瘤生存率明显低于SSTR-2和SSTR-3亚型的阳性表达组(P值分别为0.015、0.004),SSTR-2和SSTR-3阴性表达组的术后总体生存率明显低于SSTR-2和SSTR-3亚型的阳性表达组(P值分别为0.009、<0.001).Cox模型分析显示,SSTR-2蛋白、SSTR-3蛋白、肿瘤结节数目、肝硬化、静脉浸润是HCC术后总生存期的独立危险因素(P值均<0.05).结论 SSTR-2和SSTR-3亚型在肝细胞癌组织中表达低于非肝细胞癌患者,其低表达与肝细胞癌的常见侵袭转移特征及不良预后密切相关.生长抑素受体可能成为肝细胞癌的预后标志物.
    • 宋健; 黄亚绢
    • 摘要: 生长抑素(somatostatin,SST)是一种抑制多种激素释放的调节肽,具有广泛的内分泌抑制作用,其类似物在上消化道出血、急性胰腺炎、肢端肥大症等疾病中被广泛使用。虽然美国食品和药物管理局(FDA)将其评为B级药物,并且国内外临床医师对于妊娠合并上述疾病的患者常使用该类药物治疗,但其在人类妊娠期使用的安全性及对母胎的近/远期影响目前尚无定论,有待进一步研究。本文综述近年SST的热点研究,尤其是SST受体在生殖细胞中的表达及其对生育能力的影响。根据国内外的相关研究报道发现,SST及其类似物不仅可改善妊娠期相关疾病的妊娠结局,并且对胎儿和新生儿无明显致畸形的不良反应,为临床工作者妊娠期使用SST类似物治疗疾病时权衡利弊提供了重要的参考依据。%Somatostatin (SST) is a regulatory peptide, inhibiting the release of many hormones, with a wide range of endocrine inhibitory effect on diseases such as upper gastrointestinal bleeding, acute pancreatitis, acromegaly and so on. The FDA has recognized SST analogues as Class B drugs,and the domestic and foreign clinicians often use it to treat the pregnancy-complicated diseases,but the application security of it in human pregnancy is still inconclusive and worth further studying. This paper reviews the recent hot research mechanisms of SST, especially the expression of somatostatin receptor in germ cells and its effect on fertility. And according to the relevant research reports at home and abroad, we found that using the SST and its analogues not only can improve the pregnancy outcomes of related diseases, but also there is no obvious deformity caused by the side effects on the fetus and newborn. This provides an important reference for clinical workers weighing the profits and constrains of somatostatin analogues in the treatment of diseases during pregnancy.
    • 姚晓晨; 王峰
    • 摘要: Gastroenteropancreatic neuroendocrine tumors ( GEP-NETs ) are neoplasms presenting unpredictable and unusual biologic behavior that causes many clinical challenges. NETs can produce a variety of metabolically active substances ( hormones and amines) leading to distinct clinical syndromes.This review will discuss the imaging techniques for the diagnosis of GEP-NETs including ultrasonography, CT, MRI and ultrasound endoscope.In this article, Gallium-68 labeled peptide binding to G protein coupled receptor including SSTR, CCKR1 and GLP1R is addressed, and the application of Gallium-68 labeled somatostin analogues and PET-CT for diagnosis of GEP-NETs is evaluated.In conclusion, Gallium-68 labeled peptide and molecular imaging will play important roles in diagnosis, prognosis and therapeutic strategy development of GEP-NETs.%胃肠胰神经内分泌肿瘤( GEP-NET)是具有神经内分泌标志物和产生多肽激素的一类生物学行为各异且难以预测的肿瘤。本文简要介绍CT、MRI、超声和内镜对GEP-NET的诊断价值,重点介绍针对GEP-NET高表达生长抑素受体、G蛋白偶联受体、胆囊收缩素受体、胰高血糖素相关肽受体等,放射性核素68镓与其他放射性核素标记核素分子显像剂的最新进展及分子成像在GEP-NET中的诊断价值、检查前注意事项和临床适应证。68镓标记生长抑素类似物及正电子发射计算机断层显像( PET-CT)已成为GEP-NET诊断的金标准,对临床治疗决策起关键作用。 G蛋白偶联受体和胰高血糖素相关肽等新的靶向分子探针的不断涌现,生长抑素受体介导的肿瘤显像在GEP-NET诊疗中将会发挥更大作用。
    • 李进勇; 周静; 明洁; 巩钿霞; 刘希光
    • 摘要: 目的探讨^(99)Tc^m-octreotide生长抑素受体显像对局限期小细胞肺癌放疗靶区勾画的意义。方法对32例经病理证实的局限期小细胞肺癌病人进行^(99)Tc^m-octreotide SPECT-CT检查,分别以^(99)Tc^m-octreotide SPECT-CT融合图像、CT图像进行靶区勾画,比较两种图像的GTV体积(VGTV)、受量≥20Gy的肺占全肺体积的比例(V20)、平均肺受量(MLD)、脊髓受照剂量(Ds)等指标。根据病人病变情况分成淋巴结组(16例)、肺不张组(10例)、单纯肺内病灶组(6例),比较3组CT图像勾画的肿瘤靶区(GTVCT)与SPECT-CT图像勾画的肿瘤靶区(GTVSPECT-CT)。结果 ^(99)Tc^m-octreotide SPECT-CT制定的放疗计划较CT制定放疗计划的VGTV、V20和MLD小,差异有显著性(t=2.934~3.869,P0.05)。淋巴结组GTVSPECT-CT较GTVCT增大,肺不张组GTVSPECT-CT较GTVCT缩小,差异有显著性(t=3.790、5.672,P0.05)。结论与单纯CT相比,^(99)Tc^m-octreotide SPECT-CT检查对局限期小细胞肺癌放疗靶区勾画更为精确。
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