نتایج جستجو برای: tyr3
تعداد نتایج: 264 فیلتر نتایج به سال:
UNLABELLED We report here the results of studies on the in vitro receptor binding affinity, in vivo tumor uptake and biodistribution of two 99m-Tc-labeled peptides. METHODS Peptides P587 and P829 were synthesized by N-alpha-Fmoc peptide chemistry, purified by reversed-phase HPLC and characterized by fast-atom bombardment mass spectrometry. The peptides were labeled with 99mTc by ligand exchan...
introduction: somatostatin receptors expressed on a wide range of human tumors, are potential targets for the peptide receptor radionuclide therapy (prrt). in this study, 177lu-[dota-dphe1, tyr3]octreotide (177lu-dotatoc) as an agent for prrt was prepared and its biodistribution was studied in rats. methods:the best condition for the preparation of the 177lu-dotatoc radiolabeled complex was det...
context inherited and sporadic medullary thyroid cancer (mtc) is an uncommon and medically challenging malignancy. even if the extent of initial surgery is deemed adequate, the recurrence rate remains high, up to 50% in most series. measurement of serum calcitonin is important in the follow-up of patients with mtc, and reliably reflects the existence of the disease. evidence acquisition there i...
BACKGROUND 177Lu-[DOTA0, Tyr3]-octreotate (177Lu-octreotate) is used for treatment of patients with somatostatin receptor (SSTR) expressing neuroendocrine tumors. However, complete tumor remission is rarely seen, and optimization of treatment protocols is needed. In vitro studies have shown that irradiation can up-regulate the expression of SSTR1, 2 and 5, and increase 177Lu-octreotate uptake. ...
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