Impact of reversible trapping of tracer and the presence of blood metabolites on measurements of myocardial glucose utilization performed by PET and 18F-fluorodeoxyglucose using the Patlak method.

abstract：:A new 99mTc labelling method using a cleavable chelator, RP-1, was developed. In this study Balb/c mice with ovarian carcinoma xenografts received various Fab' fragments labelled with 99mTc either directly or via RP-1. Kidney uptake was significantly lower for the RP-1 linked conjugates. Tumour uptake showed no signif...

journal_title：Nuclear medicine and biology

authors： Tibben JG,Massuger LF,Boerman OC,Claessens RA,Borm GF,Pak KY,Koenders EB,Corstens FH

更新日期：1994-01-01 00:00:00

abstract：:In the quantitative studies of presynaptic dopamine metabolism by PET with 6-[18F]fluoro-L-dopa (6-[18F]FDOPA), metabolic analysis in the plasma is required to determine the precise input function because of susceptibility of the compound to peripheral metabolism. In this study, we prepared 6-[18F]-fluoro-O-pivaloyl-L...

journal_title：Nuclear medicine and biology

authors： Ishiwata K,Shinoda M,Ishii S,Nozaki T,Senda M

更新日期：1996-04-01 00:00:00

abstract：INTRODUCTION:Current guidelines for brain PET imaging advice against the injection of diazepam prior to brain FDG-PET examination in order to avoid possible interactions of benzodiazepines with the radiotracer uptake. Nevertheless, many patients undergoing PET studies are likely to be under chronic treatment with benzo...

journal_title：Nuclear medicine and biology

authors： Silva-Rodríguez J,García-Varela L,López-Arias E,Domínguez-Prado I,Cortés J,Pardo-Montero J,Fernández-Ferreiro A,Ruibal Á,Sobrino T,Aguiar P

更新日期：2016-12-01 00:00:00

abstract：INTRODUCTION:Pathological formation of fibrosis, is an important feature in many diseases. Fibrosis in liver and pancreas has been associated to metabolic disease including type 1 and 2 diabetes. The current methods for detecting and diagnosing fibrosis are either invasive, or their sensitivity to detect fibrosis in ea...

journal_title：Nuclear medicine and biology

authors： Rosestedt M,Velikyan I,Rosenström U,Estrada S,Åberg O,Weis J,Westerlund C,Ingvast S,Korsgren O,Nordeman P,Eriksson O

更新日期：2020-11-28 00:00:00

abstract：UNLABELLED:In recent years, several PET and SPECT studies have shown loss of striatal dopamine transporter (DAT) binding in amphetamine (AMPH) users. However, the use of DAT SPECT tracers to detect AMPH-induced changes in DAT binding has not been validated. We therefore examined if repeated administration of D-AMPH or ...

journal_title：Nuclear medicine and biology

authors： Booij J,de Bruin K,Gunning WB

更新日期：2006-04-01 00:00:00

abstract：:We prepared 5-HT(1A) receptor ligands (S)-N-[[1-(2-phenylethyl)pyrrolidin-2-yl]methyl]-3-[11C]methylthiobenzamide ([11C](S)-PPMMB) (Ki = 4.3 nM) and the less active [(11)C](R)-PPMMB (Ki = 160 nM) by reduction of the disulfide dimer and subsequent [(11)C]methylation of demethyl (S)- and (R)-PPMMB, respectively. Both ra...

journal_title：Nuclear medicine and biology

authors： Fujio M,Nagata S,Kawamura K,Sugiyama N,Tanaka H,Uno K,Ishiwata K

更新日期：2002-08-01 00:00:00

abstract：INTRODUCTION:We examined whether the amino acid PET tracers, trans-1-amino-3-(18)F-fluorocyclobutanecarboxylic acid (anti-(18)F-FACBC) and (11)C-methyl-l-methionine ((11)C-Met), are suitable for detecting early responses to combination therapies including temozolomide (TMZ), interferon-β (IFN), and bevacizumab (Bev) in...

journal_title：Nuclear medicine and biology

authors： Ono T,Sasajima T,Doi Y,Oka S,Ono M,Kanagawa M,Baden A,Mizoi K,Shimizu H

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:In previous in-vitro and ex-vivo studies we proved the specific uptake of (99m)Tc radiolabeled chondroitin sulfate (CS) in human articular cartilage. As a logical next step for the clinical use for imaging osteoarthritis we investigated in-vivo uptake of (99m)TcCS in dogs. PROCEDURES:The radiolabeling of CS Co...

journal_title：Nuclear medicine and biology

authors： Sobal G,Velusamy K,Kosik S,Menzel J,Hacker M,Pagitz M

更新日期：2016-06-01 00:00:00

abstract：:In connection with pretargeting, an amine-derivatized morpholino phosphorodiamidate oligomer (NH(2)-cMORF) was conjugated conventionally with p-isothiocyanate benzyl-DTPA (p-SCN-Bn-DTPA). However, after (111)In radiolabeling, unexpected label instability was observed. To understand this instability, the NH(2)-cMORF an...

journal_title：Nuclear medicine and biology

authors： Liu G,Dou S,Liu Y,Liang M,Chen L,Cheng D,Greiner D,Rusckowski M,Hnatowich DJ

更新日期：2011-02-01 00:00:00

abstract：:We have previously performed quantitative kinetic modeling of [(123)I]CNS 1261, a new SPET ligand for the MK801 intrachannel site of the NMDA receptor. We now report a bolus-infusion protocol, which eliminates the need for arterial blood sampling. Dynamic SPET scanning and venous blood sampling were performed in 7 hea...

journal_title：Nuclear medicine and biology

authors： Bressan RA,Erlandsson K,Mulligan RS,Gunn RN,Cunningham VJ,Owens J,Cullum ID,Ell PJ,Pilowsky LS

更新日期：2004-02-01 00:00:00

abstract：INTRODUCTION:Therapeutic application of intravenous administered (IV) human bone marrow-derived mesenchymal stem cells (ahMSCs) appears to have as main drawback the massive retention of cells in the lung parenchyma, questioning the suitability of this via of administration. Intraarticular administration (IAR) could be ...

journal_title：Nuclear medicine and biology

authors： Meseguer-Olmo L,Montellano AJ,Martínez T,Martínez CM,Revilla-Nuin B,Roldán M,Mora CF,López-Lucas MD,Fuente T

更新日期：2017-03-01 00:00:00

abstract：:The imaging of apoptosis represents an attractive diagnostic goal in the area of tumor therapy, degenerative diseases and organ transplantation. Since caspases play a key role during the early period of the intracellular signal cascade of cells undergoing apoptosis we considered benzyloxycarbonyl-Val-Ala-DL-Asp(O-meth...

journal_title：Nuclear medicine and biology

authors： Haberkorn U,Kinscherf R,Krammer PH,Mier W,Eisenhut M

更新日期：2001-10-01 00:00:00

abstract：:The uptake, retention and tissue to blood ratios of two non-steroidal, 125I-labeled iodoestrogens, an iodotrihydroxyphenylethylene, 2-iodo-1,2-bis(4-hydroxyphenyl)-2-(3-hydroxyphenyl)ethylene and an iododihydroxyphenylethylene, 2-iodo-1,1-bis(4-hydroxyphenyl)-2-phenylethylene, were compared after intraperitoneal injec...

journal_title：Nuclear medicine and biology

authors： Desombre ER,Pribish J,Hughes A

更新日期：1995-07-01 00:00:00

abstract：INTRODUCTION:The selective 5-hydroxytryptamine type 2a receptor (5-HT(2A)R) radiotracer [(18)F]altanserin is a promising ligand for in vivo brain imaging in rodents. However, [(18)F]altanserin is a substrate of P-glycoprotein (P-gp) in rats. Its applicability might therefore be constrained by both a differential expres...

journal_title：Nuclear medicine and biology

authors： Kroll T,Elmenhorst D,Matusch A,Celik AA,Wedekind F,Weisshaupt A,Beer S,Bauer A

更新日期：2014-01-01 00:00:00

abstract：INTRODUCTION:Telmisartan, a nonpeptide angiotensin II AT1 receptor antagonist used as an antihypertensive drug, is specifically taken up by the liver through the OATP1B3. PET imaging with [(11)C]telmisartan is expected to provide information about the whole body pharmacokinetics of telmisartan as well as its transport ...

journal_title：Nuclear medicine and biology

authors： Shimizu K,Takashima T,Yamane T,Sasaki M,Kageyama H,Hashizume Y,Maeda K,Sugiyama Y,Watanabe Y,Senda M

更新日期：2012-08-01 00:00:00

abstract：:Chondroitin sulfate (CS) is used in the treatment of human osteoarthritis as a slow-acting symptomatic drug. For this reason, we performed uptake studies with (99m)TcCS using different chondrocyte cultures, as well as cartilage tissue in vitro. For uptake studies, adherent monolayer cultures of human chondrocytes (2.7...

journal_title：Nuclear medicine and biology

authors： Sobal G,Menzel J,Sinzinger H

更新日期：2009-01-01 00:00:00

abstract：:The hepatic and renal retention of indium-111 (111In) from 111In-labeled polypeptides has been the subject of many investigations. Because the lysosome is a common intracellular destination for the degradation of polypeptides, we studied the lysosomal metabolism of 111In-DTPA-labeled glycoproteins targeted to cell sur...

journal_title：Nuclear medicine and biology

authors： Franano FN,Edwards WB,Welch MJ,Duncan JR

更新日期：1994-11-01 00:00:00

abstract：:NCQ 115 ((+)-(R)-5-bromo-N-((1-(4-fluorobenzyl)-2-pyrrolidinyl)methyl)-2, 3-dimethoxybenzamide) is a selective dopamine D-2 receptor antagonist. NCQ 115 has a fluorine in a synthetically suitable position in the parent compound and was therefore suggested as a potential 18F-labelled radioligand for positron emission t...

journal_title：Nuclear medicine and biology

authors： Halldin C,Högberg T,Farde L

更新日期：1994-05-01 00:00:00

abstract：:An ultrafast and efficient high-performance liquid chromatographic (LC) method was developed to purify positron emission tomography (PET) radiopharmaceuticals as well as for metabolite analysis of the plasma sample. Chromatographic separation was achieved on a short (60 mm length) semipreparative (10 mm I.D.) column p...

journal_title：Nuclear medicine and biology

authors： Nakao R,Ito T,Hayashi K,Fukumura T,Suzuki K

更新日期：2010-01-01 00:00:00

abstract：:The in vivo brain regional distribution of 2-[18F]fluoro-A-85380, a novel tracer for positron emission tomographic (PET) studies, followed the regional densities of brain nAChRs reported in the literature. Evidence of binding to nAChRs and high specificity of the binding in vivo was demonstrated by inhibition with nAC...

journal_title：Nuclear medicine and biology

authors： Horti AG,Scheffel U,Koren AO,Ravert HT,Mathews WB,Musachio JL,Finley PA,London ED,Dannals RF

更新日期：1998-10-01 00:00:00

abstract：:A paired-label biodistribution was performed in athymic mice bearing SK-N-SH human neuroblastoma xenografts to compare the tissue uptake of meta-[211At]astatobenzylguanidine ([211At]MABG) and [131I]MIBG. Significantly higher (p < 0.05) uptake of [211At]MABG was seen in tumor (3.8 +/- 0.8% ID/g vs. 3.1 +/- 0.7% ID/g at...

journal_title：Nuclear medicine and biology

authors： Vaidyanathan G,Friedman HS,Keir ST,Zalutsky MR

更新日期：1996-08-01 00:00:00

abstract：INTRODUCTION:Rodent models are extensively used to assess the biochemical and physiological changes associated with aging. They play a major role in the development of therapies for age-related pathologies such as Parkinson's disease. To validate the usefulness of these animal models in aging or age-related disease res...

journal_title：Nuclear medicine and biology

authors： Niñerola-Baizán A,Rojas S,Roé-Vellvé N,Lomeña F,Ros D,Pavía J

更新日期：2015-04-01 00:00:00

abstract：:Radiolabeled derivatives of WAY-100635 have been shown to be important for imaging in vivo because of their antagonist properties and their specificity for the 5-hydroxytryptamine(1A) (5-HT(1A)) receptor. Our goal is to prepare a series of radiofluorinated derivatives of WAY-100635 that, in the rat, range in pharmacok...

journal_title：Nuclear medicine and biology

authors： Lang L,Jagoda E,Schmall B,Sassaman M,Ma Y,Eckelman WC

更新日期：2000-07-01 00:00:00

abstract：INTRODUCTION:Severe brain hypoxia in the territory of the occluded artery is a key feature of ischemic stroke. This region can be imaged using positron emission tomography (PET) and the standard hypoxia radiotracer (18)F-fluoromisonidazole ((18)F-FMISO). However, the utility of (18)F-FMISO is limited by its slow accumu...

journal_title：Nuclear medicine and biology

authors： Williamson DJ,Ejaz S,Sitnikov S,Fryer TD,Sawiak SJ,Burke P,Baron JC,Aigbirhio FI

更新日期：2013-04-01 00:00:00

abstract：INTRODUCTION:Choline, acetate and glucose ([2-(18)F]fluoro-2-deoxyglucose, [(18)F]FDG) analogs are under investigation as positron emission tomography (PET) tracers for the imaging of prostate cancer; however, their response to tumor hypoxia has not been clarified. METHODS:The uptake of [methyl-(3)H]choline, [1-(14)C]...

journal_title：Nuclear medicine and biology

authors： Hara T,Bansal A,DeGrado TR

更新日期：2006-11-01 00:00:00

abstract：:To fully exploit the potential of positron emission tomography (PET) imaging to assess drug distribution and pharmacokinetics in the central nervous system, the contribution of radiometabolites to the PET signal has to be determined for correct interpretation of data. However, radiosynthesis and extensive study of rad...

journal_title：Nuclear medicine and biology

authors： Auvity S,Breuil L,Goislard M,Bottlaender M,Kuhnast B,Tournier N,Caillé F

更新日期：2020-01-01 00:00:00

abstract：:A computer controlled [15O]H2O injection system has been designed for multiple bolus injections during PET cerebral blood flow studies. The system is housed in a lead safe, and radiation exposure to nearby personnel is low; we have measured rates of approx. 100 microSv/h (10 mR/h) during 2 min of [15O]H2O production a...

journal_title：Nuclear medicine and biology

authors： Palmer BM,Sajjad M,Rottenberg DA

更新日期：1995-02-01 00:00:00

abstract：INTRODUCTION:The dopamine D4 receptor (D4R) has attracted considerable attention as potential target for the treatment of a broad range of central nervous system disorders. Although many efforts have been made to improve the performance of putative radioligand candidates, there is still a lack of D4R selective tracers ...

journal_title：Nuclear medicine and biology

authors： Willmann M,Ermert J,Prante O,Hübner H,Gmeiner P,Neumaier B

更新日期：2020-07-16 00:00:00

abstract：:A novel approach for the combinatorial synthesis of backbone-derived metal-cyclic peptide libraries is presented. In this approach the metalo-cyclic peptides are prepared from their linear precursors through complexation of a metal atom via two hemi-chelating arms located on the peptide backbone. Thus, cyclization and...

journal_title：Nuclear medicine and biology

authors： Fridkin G,Bonasera TA,Litman P,Gilon C

更新日期：2005-01-01 00:00:00

abstract：:The application of radionuclide-labeled biomolecules such as monoclonal antibodies or antibody fragments for imaging purposes is called immunoscintigraphy. More specifically, when the nuclides used are positron emitters, such as zirconium-89, the technique is referred to as immuno-PET. Currently, there is an urgent ne...

journal_title：Nuclear medicine and biology

authors： Radchenko V,Bouziotis P,Tsotakos T,Paravatou-Petsotas M,la Fuente Ad,Loudos G,Harris AL,Xanthopoulos S,Filosofov D,Hauser H,Eisenhut M,Ponsard B,Roesch F

更新日期：2016-05-01 00:00:00