نتایج جستجو برای: brain uptake

تعداد نتایج: 596037  

Journal: :Journal of Scientific Research and Reports 2014

Journal: :Research report 2004
Robert A Yokel Janelle S Crossgrove

Increased manganese (Mn) use in manufacturing and in gasoline has raised concern about Mn-induced parkinsonism. Previous research indicated carrier-mediated brain entry but did not assess brain efflux. Using in situ rat brain perfusion, we studied influx across the blood-brain barrier (BBB*) of three predominant plasma Mn species available to enter the brain: Mn2+, Mn citrate, and Mn transferri...

Journal: :The Journal of physiology 2002
Denis Burdakov Frances M Ashcroft

Without a continuous supply of nutrients, the brain dies within a few minutes. Blood flow and glucose uptake are so tightly coupled to neuronal function that techniques which image these processes (e.g. PET) are valuable monitors of neuronal activity. However, in order to understand brain metabolism completely, and to find specific molecular targets for therapeutic intervention, it is also esse...

Kosuke Nakajo Naohiro Tsuyuguchi, Takehiro Uda Yonehiro Kanemura Yuzo Terakawa

Objective(s): 18F-fluciclovine (trans-1-amino-3-[18F] fluorocyclobutanecarboxylic acid, [FACBC]) is an artificial amino acid radiotracer used for positron emission tomography (PET) studies, which is metabolically stable in vivo and has a long half-life. It has already been shown that FACBC-PET is useful for glioma imaging. However, there have been no reports evaluating the efficiency of FACBC-P...

Journal: :Occupational and Environmental Medicine 1968

Journal: :Molecular Aspects of Medicine 2018

2018
Antoine Verger Carina Stegmayr Norbert Galldiks Axel Van Der Gucht Philipp Lohmann Gabriele Stoffels Nadim J. Shah Gereon R. Fink Simon B. Eickhoff Eric Guedj Karl-Josef Langen

PET using the amino-acid O-(2-18F-fluoroethyl)-l-tyrosine (18F-FET) is gaining increasing interest for brain tumour management. Semi-quantitative analysis of tracer uptake in brain tumours is based on the standardized uptake value (SUV) and the tumour-to-brain ratio (TBR). The aim of this study was to explore physiological factors that might influence the relationship of SUV of 18F-FET uptake i...

A 73-year-old man with history of prostatic adenocarcinoma radical prostatectomy underwent 99mTc-MDP whole-body bone scan and subsequent 68Ga-labeled prostate-specific membrane antigen (PSMA) ligand PET/CT for restaging due to a gradual rise of prostate-specific antigen levels. Whole-body bone scan showed two focal zones of slightly increased uptake in the right fronto-par...

2015
Chuck T. Chen Alex P. Kitson Kathryn E. Hopperton Anthony F. Domenichiello Marc-Olivier Trépanier Lauren E. Lin Leonardo Ermini Martin Post Frank Thies Richard P. Bazinet

Despite being critical for normal brain function, the pools that supply docosahexaenoic acid (DHA) to the brain are not agreed upon. Using multiple kinetic models in free-living adult rats, we first demonstrate that DHA uptake from the plasma non-esterified fatty acid (NEFA) pool predicts brain uptake of DHA upon oral administration, which enters the plasma NEFA pool as well as multiple plasma ...

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