1385/9/24، جلد ۱۴، شماره ۲، صفحات ۲۸-۳۴

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عنوان انگلیسی Evaluation and comparison of different quality control methods in radiochemical purity determination of new peptide kits 99mTc-EDDA-Tricine-HYNIC-Tyr3-Octreotide and 99mTc-EDDA-Tricine-HYNIC-Tyr3-Octreotate for imaging somatostatin receptor positive tumors [Persian]
چکیده انگلیسی مقاله Introduction: Using labeled peptides enjoys high importance in nuclear medicine. Somatostatin analogs labeled with different radionuclide are vastly investigated for diagnosis or treatment of somatostatin receptor positive tumors. Labeling somatostatin analogs with 99mTc as alternative of 111In needs doing different quality control method for determination of labeling yield and complex stability for clinic applications. Methods: For determining radiochemical purity, three different methods were compared and evaluated including HPLC, TLC and Sep-Pak. Results: All the three methods were suitable for determining of radiochemical purity in peptide kits, although using HPLC was more effective rather than the others. Conclusion: HPLC was the best method for determination of radiochemical purity of the peptide kits. TLC or Sep-Pak method should only be employed if HPLC is not available in nuclear medicine clinics, and after training and gaining sufficient operational experience. Methods: In this research, a new monoclonal antibody against colon cancer cells was prepared and antigen concentration in different cells determined by a radioimmunoassay method using iodine (I-125) labeled protein G. Results: 125I-labeled protein G percent binding to white blood cell, HT29, LS180 and MCF7 cell lines were 7.1%, 91.2%, 75.8% and 40.2%, respectively. Conclusion: Regarding importance of monoclonal antibody applications, it is necessary to find an efficient method for their evaluation in cancer therapy. In this method, a radioactive agent with no count restriction was used. Also by this method, amount of the antigen can be easily quantified.
کلیدواژه‌های انگلیسی مقاله Iran, meta-analysis, trend of infertilityGated myocardial perfusion SPECT, Quantification, segmental scoring, Meckel’s scan, Meckel’s diverticulum, Gastrointestinal bleeding, Technetium Pertechnetate scintigraphy, Thiosemicarbazone, 191Os, Radiolabeling, Biodistribution, RBBB, Myocardial perfusion, Gated SPECT, Coronary artery disease, Effective dose, Nuclear medicine procedures, Collective effective dose, Tc99m MIBI parathyroid scintigraphy, Myocardium perfusion gated SPECT, Parathyroid adenoma, Skeletal scintigraphy, Fluid restriction, Tc-99m MDP, Image quality, Bone to soft tissue ratio, Radiology, Nuclear medicine, Medical imaging, Bibliometric study, Iran, Hyperthyroidism, Radioactive iodine, Sexual hormones, Semen analysis, Attenuation correction, Artifact, Color intensity, SPECT, Thyroid, I-131, Absorbed ratio, Monte-Carlo, Absorbed dose, MCNP-4A, Carcinoid Tumor, Liver metastases, ¹³¹I-MIBG scintigraphy, Quality Control, PET, 82mRb, 82Kr, Myocardial perfusion, Drug delivery systems, Gamma-scintigraphy, Neutron activation, Pharmacoscintigraphy, Post stroke dementia, Cerebral perfusion SPECT, ECD, 99mTc-DTPA, Renography, Deconvolution, Renal transit time parameters, Nuclear medicine, PET tracer, Gallium, Copper, Tc-94m, Minimally invasive radio-guided surgery, Hyperparathyroidism, Tc-99m sestamibi, Parathyroid adenoma, Parathyroid hyperplasia, Bombesin, 99mTc, Tumor, HYNIC, Radioiodine therapy, TLD, Thyroid cancer, Absorbed dose, Myocardial perfusion scan, Ischemic heart disease, Risk factors, Demographic data, Military hospital, Evidence based medicine, Nuclear medicine, Evidence based medicine, Nuclear medicine, Critical appraisal, Sensitivity, Specificity, Cavernous hemangioma, Radionuclide imaging, 99mTc-RBC, Attenuation correction, Myocardial perfusion, SPECT, Radio-iodine therapy, Liothyronine, Thermoluminescent dosimeter, Accumulated dose, Exposure rate, 106Ru eye plaque, Dose calculation, Mathematical human eye model, MCNP4C code, Sentinel lymph node, Tc-99m antimony sulfide colloid, Lymphoscintigraphy, Skin marking, Osteoporosis, Type 2 diabetes, Postmenopausal, BMD, Streptokinase, Gallium-67, Thrombosis, SPECT, Radiopharmaceuticals, Breast uptake, Myocardial perfusion scan, Tc-99m sestamibi, Tc-99m pertechnetate scan, Meckel’s diverticulum, Gastrointestinal bleeding, PET, Sensitivity, SPECT, Spatial resolution, Temporal resolution, Dynamic imaging, Attenuation, Collimator, Random coincidence, Animal imaging, Dual isotope imaging, Time-of-Flight, Artifact, Bone scan, Catheter, PSA, Prostate, RIA, Standard matrix, Human serum, Myocardial perfusion scan, Leptin, BMI, [14C]Clozapine, Radiochemical purity, High performance liquid chromatography, Liquid scintillation spectrometer, Renography, Diuretic, 99mTc-DMSA, Differential renal function, Complications, Dipyridamole, Blood pressure changes, 99mTc-MIBI, Brain SPECT, Brain tumor recurrence, Radiation necrosis, Neuroendocrine tumors, Somatostatin receptors, Targeted therapy, Sm-153, EDTMP, Radiopharmaceutical, Therapy, Biological evaluation, Ursodeoxycholic acid, Hepatobiliary scintigraphy, 99mTc-BRIDA, Infantile jaundice, Neonatal hyperbilirubinemia, Positron emission tomography (PET), Scanner performance, Gate, Gallium-67 scintigraphy, Infection animal models, SPECT, Staphylococcus aureus, Escherichia coli, Candidae albicans, PET/CT, Dual energy CT, Attenuation correction, Von Hippel Lindau syndrome, Medullary carcinoma, PET/CT, Bone mlnearl density, Gruen zones, Orthoped software, Dual energy x-ray absorptiometry, Total hip arthroplasty, Clinical, PET/CT, fdg, Anatometabolic imaging, Oncology, Brain imaging, Cardiology, 2D vs. 3D, BGO, LSO, LYSO, GSO, Metastases, Medullary thyroid carcinoma, 99mTc-DMSA (V), Depression, Myocardial perfusion, Scintigraphy, SPECT, Liver hemangioma, Planar scan, Space occupying lesion, 99mTc-RBC, Attenuation correction, Myocardial perfusion, SPET, Emission scanning, Transmission scanning, Hybridoma, Radioimmunoassay technique, Protein G, Tyr3-Octreotide, Quality Control, Radiochemical purity, 99mTc ، Tyr3-Octreotate,

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