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  • Title: The comparative distribution of [Lys8-Asn9]-neurotensin8-13-like immunoreactivity in chicken and rat tissues.
    Author: Goedert M, Schwartz WN, Williams BJ.
    Journal: Brain Res; 1985 Sep 09; 342(2):259-65. PubMed ID: 4041826.
    Abstract:
    The presence of [Lys8-Asn9]-neurotensin8-13-like immunoreactivity was studied by radioimmunoassay in chicken and rat tissues. In the chicken, [Lys8-Asn9]-neurotensin8-13-like immunoreactivity showed a wide distribution throughout the central nervous system and the gastrointestinal tract, and the immunoreactive material co-eluted with the synthetic peptide on reverse-phase high performance liquid chromatography. In the rat, [Lys8-Asn9]-neurotensin8-13-like immunoreactivity was widely distributed when 0.1 M HCl was used as the extraction procedure. However, the immunoreactive material did not co-elute with the synthetic peptide on reverse-phase high performance liquid chromatography; moreover, the addition of the aspartic proteinase inhibitor pepstatin to the extraction medium resulted in a large reduction in the levels of [Lys8-Asn9]-neurotensin8-13-like immunoreactivity and no immunoreactive material could be detected when the tissues were extracted using acetone/HCl. The present results therefore indicate that [Lys8-Asn9]-neurotensin8-13-like immunoreactivity is not present in rat tissues. That which was detected resulted from an extraction artefact.
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