Výsledky vyhledávání - "Gert Meiborg"

Catecholaminergic Development of Fetal Rat Ventral Mesencephalon: Characterization by High-Performance Liquid Chromatography with Electrochemical Detection and Immunohistochemistry

Autor: K. G. Go, Ron Tomasini, Gert Meiborg, Ido P. Kema, Michiel J Staal, Frits A. J. Muskiet

Publikováno v: Experimental Neurology, 145(2), 434-441. ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS

We determined dopamine (DA), noradrenaline (NA), and adrenaline (A), as well as immunohistochemically stained tyrosine hydroxylase (TH) and DA in dissected rat ventral mesencephalon (VM) tissue from Embryonic Day (ED) 14 to Postnatal Day (P) 17. Whol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5de9333548a5d4ef0f0f7a1122054d0
https://doi.org/10.1006/exnr.1997.6461

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Isotope dilution ammonia chemical ionization mass fragmentographic analysis of urinary 3-O-methylated catecholamine metabolites

Autor: Frits A. J. Muskiet, Ido P. Kema, Gerrie J. Stob, Gert Meiborg, Gijs T. Nagel

Publikováno v: Journal of Chromatography B: Biomedical Sciences and Applications. 617:181-189

We developed a method for simultaneous quantification of the urinary 3-O-methylated catecholamine metabolites 3-methoxytyramine, normetanephrine and metanephrine by stable isotope-dilution ammonia chemical ionization mass fragmentography. Prepurifica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90f8e3c24cd08b3e72161d8a7a7d3f5a
https://doi.org/10.1016/0378-4347(93)80486-n

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Profiling of tryptophan-related plasma indoles in patients with carcinoid tumors by automated, on-line, solid-phase extraction and HPLC with fluorescence detection

Autor: Elisabeth G.E. de Vries, Ido P. Kema, Pax H.B. Willemse, Bert Ooms, Wim G. Meijer, Gert Meiborg

Publikováno v: Clinical Chemistry, 47(10), 1811-1820. AMER ASSOC CLINICAL CHEMISTRY

Background: Profiling of the plasma indoles tryptophan, 5-hydroxytryptophan (5-HTP), serotonin, and 5-hydroxyindoleacetic acid (5-HIAA) is useful in the diagnosis and follow-up of patients with carcinoid tumors. We describe an automated method for th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f272cc4236e5b06ff46b61671f1edfc
https://research.rug.nl/en/publications/5b4c4de5-3efc-4b4d-8385-b3bae4c02411

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Influence of a serotonin-and dopamine-rich diet on platelet serotonin content and urinary excretion of biogenic amines and their metabolites

Autor: C. J. M. Hoppenbrouwers, Gert Meiborg, A. M. J. Schellings, Ido P. Kema, Frits A. J. Muskiet

Publikováno v: Clinical Chemistry, 38(9), 1730-1736. AMER ASSOC CLINICAL CHEMISTRY

Using high-performance liquid chromatography and gas chromatography, we reevaluated the 24-h influence of a serotonin- and dopamine-rich diet on platelet serotonin and serotonin, 5-hydroxyindoleacetic acid (5-HIAA), and major catecholamine metabolite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0745e00c7b88e85a5530ef46cab7346b
https://research.rug.nl/en/publications/13ff118e-09c7-42f7-aa87-8d4957a6298e

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Supplementation of patients with homozygous sickle cell disease with zinc, alpha-tocopherol, vitamin C, soybean oil, and fish oil

Autor: John G Schermer, Fred D. Muskiet, Frits A. J. Muskiet, Gert Meiborg

Publikováno v: American Journal of Clinical Nutrition, 54(4), 736-744. Oxford University Press

Thirteen patients (aged 0.7-17.9 y) with homozygous sickle cell disease were supplemented with alpha-tocopherol, vitamin C, zinc, and soybean oil (suppl 1; for 8 mo) and alpha-tocopherol, vitamin C, and fish oil (suppl 2; for 7 mo). Urinary zinc (sup

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3493ec444cdb03ab22aeccda2f85679f
https://research.rug.nl/en/publications/0f9bbd2b-b1bf-46b9-b50c-4678c5138476

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Simultaneous capillary gas chromatographic profiling of medium- and long-chain fatty acid methyl esters with split injection

Autor: Marcel Volmer, Gert Meiborg, Frits A. J. Muskiet

Publikováno v: Journal of Chromatography B: Biomedical Sciences and Applications. 434:385-394

Summary Split injection-related discrimination can be a source of inaccuracy and imprecision in quantitative capillary gas chromatographic profiling methods for compounds with relatively big differences in boiling points, such as the methyl esters of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0431c07bf815b0582843dd4d3db9e568
https://doi.org/10.1016/s0378-4347(88)80005-7

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