beta-Endorphin immunoreactive materials in human plasma determined by a multiple radioimmunoassay system.
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beta-Endorphin immunoreactive materials in human plasma determined by a multiple radioimmunoassay system. / Wiedemann, Klaus; Teschemacher, H.
in: LIFE SCI, Jahrgang 33, Nr. 1, 1, 1983, S. 89-92.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - beta-Endorphin immunoreactive materials in human plasma determined by a multiple radioimmunoassay system.
AU - Wiedemann, Klaus
AU - Teschemacher, H
PY - 1983
Y1 - 1983
N2 - Extracts of plasma obtained from adult humans before and immediately after physical stress were subjected to high pressure liquid chromatography (HPLC); extracts or HPLC fractions, resp., were analysed for the presence of human beta-endorphin (beta H-endorphin) or fragments thereof by several radioimmunoassays using antibodies directed against the C-terminus and two "middle" regions of beta H-endorphin. Using an antibody ("Don Antonio") apparently directed against a beta H-endorphin fragment including positions 17 to 22 or somewhat adjacent regions, concentrations of beta H-endorphin immunoreactivity were found to be in the well-known range under normal conditions and to increase after physical stress. However, only a minor portion of this material proved to be identical with beta H-endorphin, whereas the major portion behaved like a smaller fragment thereof. In addition, high amounts of an immunoreactive material obviously containing a C-terminal sequence of beta H-endorphin were found, indicating the presence of an immunologically relevant beta H-endorphin fragment in the plasma.
AB - Extracts of plasma obtained from adult humans before and immediately after physical stress were subjected to high pressure liquid chromatography (HPLC); extracts or HPLC fractions, resp., were analysed for the presence of human beta-endorphin (beta H-endorphin) or fragments thereof by several radioimmunoassays using antibodies directed against the C-terminus and two "middle" regions of beta H-endorphin. Using an antibody ("Don Antonio") apparently directed against a beta H-endorphin fragment including positions 17 to 22 or somewhat adjacent regions, concentrations of beta H-endorphin immunoreactivity were found to be in the well-known range under normal conditions and to increase after physical stress. However, only a minor portion of this material proved to be identical with beta H-endorphin, whereas the major portion behaved like a smaller fragment thereof. In addition, high amounts of an immunoreactive material obviously containing a C-terminal sequence of beta H-endorphin were found, indicating the presence of an immunologically relevant beta H-endorphin fragment in the plasma.
M3 - SCORING: Zeitschriftenaufsatz
VL - 33
SP - 89
EP - 92
JO - LIFE SCI
JF - LIFE SCI
SN - 0024-3205
IS - 1
M1 - 1
ER -