نتایج جستجو برای: Radiolabeled peptide

تعداد نتایج: 165295  

Journal: :iranian journal of nuclear medicine 2010
armaghan fard-esfahani davood beiki babak fallahi mohammad reza mohajeri-tehrani mohammad reza gharaie

introduction: ubiquicidin (ubi) 29-41 is a synthetic antimicrobial peptide that binds with the microbial cell membrane at the location of infection. this study was conducted to evaluate its probable efficacy as an infection-imaging agent with potential to differentiate bacterial infection from sterile inflammation in humans. methods: fifteen diabetic foot patients (10 males and 5 females) with...

Journal: :iranian journal of pharmaceutical research 0
sepideh khoshbakht department of radiopharmacy, faculty of pharmacy, tehran university of medical sciences, tehran, iran, davood beiki research center for nuclear medicine, tehran university of medical sciences, tehran, iran. parham geramifar research center for nuclear medicine, tehran university of medical sciences, tehran, iran. farzad kobarfard department of pharmaceutical chemistry, school of pharmacy, phytochemistry research center, shahid beheshti university of medical sciences, tehran, iran, omid sabzevari department of toxicology & pharmacology, faculty of pharmacy, and toxicology and poisoning research centre, tehran university of medical sciences, tehran, iran, mohsen amini department of medicinal chemistry, and drug design and development research center, faculty of pharmacy, tehran university of medical sciences, tehran, iran,

introduction: a noninvasive method of detecting exposure of phosphatidylserine (ps) on the external surface of the plasma membrane such as nuclear imaging could assist the diagnosis and therapy of apoptosis related pathologies. the most studied imaging agent for apoptosis is annexin v so far. because of limitations of annexin v other agents have been introduced such as small peptides and molecu...

Introduction: A noninvasive method of detecting exposure of phosphatidylserine (PS) on the external surface of the plasma membrane such as nuclear imaging could assist the diagnosis and therapy of apoptosis related pathologies. The most studied imaging agent for apoptosis is Annexin V so far. Because of limitations of Annexin V other agents have been introduced such as small peptides and molecu...

Introduction: A noninvasive method of detecting exposure of phosphatidylserine (PS) on the external surface of the plasma membrane such as nuclear imaging could assist the diagnosis and therapy of apoptosis related pathologies. The most studied imaging agent for apoptosis is Annexin V so far. Because of limitations of Annexin V other agents have been introduced such as small peptides and molecu...

Objective(s): Somatostatin receptor-positive neuroendocrine tumors have been targeted using various peptide analogs radiolabeled with therapeutic radionuclides for years. The better biomedical properties of radioantagonists as higher tumor uptake make these radioligands more attractive than agonists for somatostatin receptor-targeted radionuclide therapy. In this study...

Journal: :iranian journal of nuclear medicine 2008
mostafa gandomkar reza najafi mohammad mazidi mostafa goudarzi seyed esmaeil sadat ebrahimi

introduction: over expression of selected peptide receptors in human tumors has been shown to represent clinically relevant targets for cancer diagnosis and therapy. the aim of this work was to investigate neuropeptide y (npy) as a new radiopharmaceutical for diagnosis of breast cancer. methods: a neuropeptide y analogues with y1 receptor preference and agonistic properties was synthesized by s...

Journal: :Current Opinion in Endocrine and Metabolic Research 2021

Medical therapy of clinically nonfunctioning (nonsecreting) low grade (grade 1–2) neuroendocrine neoplasms consists first-line first generation somatostatin analogs and second-line or third-line peptide receptor radiotherapy with radiolabeled beta-emitting analogs, Everolimus, Sunitinib, interferon-α. Second-generation like Pasireotide have no proven superiority over first-generation analogs. C...

Neurokinin 1 receptors (NK1R) are overexpressed on several types of important human cancer cells. Substance P (SP) is the most specific endogenous ligand known for NK1Rs. Accordingly, a new SP analogue was synthesized and evaluated for detection of NK1R positive tumors. [6-hydrazinopyridine-3-carboxylic acid (HYNIC)-Tyr8-Met(O)11-SP] was synthesized and radiolabeled with 99mTc using ethylenedia...

Neurokinin 1 receptors (NK1R) are overexpressed on several types of important human cancer cells. Substance P (SP) is the most specific endogenous ligand known for NK1Rs. Accordingly, a new SP analogue was synthesized and evaluated for detection of NK1R positive tumors. [6-hydrazinopyridine-3-carboxylic acid (HYNIC)-Tyr8-Met(O)11-SP] was synthesized and radiolabeled with 99mTc using ethylenedia...

Journal: :Hellenic journal of nuclear medicine 2012
Theodoros Kalathas Maria Kotzasarlidou Elissavet Molyvda-Athanasopoulou Thalia Kalatha Vaggelis Boultoukas Anna Gotzamani-Psarrakou

Somatostatin analogues (SSA), both radiolabeled and unlabeled play an important role in the management of carcinoid tumors. They are often administered in parallel, the unlabeled analogue for treating the carcinoid tumors' symptoms and the radiolabeled one for imaging tumors foci. There is a debate about when is the optimum time for a somatostatin receptor scintigraphy during treatment. Opinion...

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