Ursula Amsler
University of Zurich
6 Papers
100 Citations
Ursula Amsler is an academic researcher from University of Zurich. The author has contributed to research in topics: Amino acid & Gas chromatography. The author has an hindex of 6, co-authored 6 publications.
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Papers
Release of N-acetylaspartylglutamate on depolarization of rat brain slices.
TL;DR: The present demonstration of NAAG release is consistent with electrophysiological and immunohistochemical evidence for its neurotransmitter function at terminals of the lateral olfactory tract and support the hypothesis that NAAGs is a neurotransmitter.
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In vivo release of glutamate and aspartate following optic nerve stimulation
TL;DR: Glu, Asp or related substances are involved in the transmission of the pigeon optic nerve terminals as determined by mass fragmentography in perfusate on electrical stimulation of the optic nerve or of the midbrain nucleus isthmi, pars parvocellularis.
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Gas chromatographic method for the determination of trace amounts of putative amino acid neurotransmitters from brain perfusates collected in vivo.
TL;DR: Glass capillary gas chromatography in combination with thermionic detection has been developed for the measurement of trace amounts of glycine, beta-alanine, aspartic acid, gamma-aminobutyric acid and glutamic acid from brain perfusates collected in vivo by push-pull cannula techniques.
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Mass fragmentographic method for the determination of trace amounts of putative amino acid neurotransmitters and related compounds from brain perfusates collected in vivo.
Max Wolfensberger,Ursula Amsler +1 more
TL;DR: The technique has been applied to the assay of amino acids released in vivo within the pigeon optic tectum, demonstrating the capabilities of the present analytical approach.
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Quantification of N-acetylaspartylglutamate, an N-terminal blocked dipeptide neurotransmitter candidate, in brain slice superfusates by gas chromatography-mass spectrometry.
TL;DR: A limit of quantification in the low pmol to high fmol range has been achieved, which is clearly sufficient for the intended purpose of investigating N-Acetylaspartylglutamate stimulation-induced release from brain slices.
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