Results 191 to 200 of about 109,726 (240)
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Journal of Physical Chemistry B, 2015
Recent experimental results about the oxidation of methionine enkephalin by ·OH radicals indicated an intramolecular electron transfer between the C-terminal methionine radical cation and the tyrosine N-terminus too fast to be observed.
J. Bergès +5 more
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Recent experimental results about the oxidation of methionine enkephalin by ·OH radicals indicated an intramolecular electron transfer between the C-terminal methionine radical cation and the tyrosine N-terminus too fast to be observed.
J. Bergès +5 more
semanticscholar +1 more source
Synaptic mechanism of methionine-enkephalin uptake
Life Sciences, 1982The actions of classical neurotransmitters at the synapse are rapidly terminated either by re-uptake or by enzymatic degradation. Enkephalins, like other neurotransmitters, have been demonstrated to be degraded by active proteinases present in the brain. However, it has been generally assumed that an uptake process is not operant for met-enkephalin. To
J. Go, I. Jamal, B.P. Roy
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Journal of Paediatrics and Child Health, 2014
Background: Cardiac opioid peptides have been identified to exert important adaptive metabolic signalling for cardioprotection against ischaemia or hypoxia‐related injury.
O. V. D. van den Brink +4 more
semanticscholar +1 more source
Background: Cardiac opioid peptides have been identified to exert important adaptive metabolic signalling for cardioprotection against ischaemia or hypoxia‐related injury.
O. V. D. van den Brink +4 more
semanticscholar +1 more source
Alcoholism: Clinical and Experimental Research, 2004
Abstract: Background: Opiate peptides are involved in the physical dependence on ethanol. Levels of methionine enkephalin (MEnk), for example, are affected by ethanol. No study on the effect of ethanol on endomorphin, the endogenous ligand for the μ‐opiate receptor, has yet been conducted.Methods: We examined the effect of ethanol ingestion on serum
John E. Morley +2 more
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Abstract: Background: Opiate peptides are involved in the physical dependence on ethanol. Levels of methionine enkephalin (MEnk), for example, are affected by ethanol. No study on the effect of ethanol on endomorphin, the endogenous ligand for the μ‐opiate receptor, has yet been conducted.Methods: We examined the effect of ethanol ingestion on serum
John E. Morley +2 more
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The Journal of Clinical Endocrinology & Metabolism, 1983
Plasma methionine-enkephalin-like and leucine-enkephalin-like immunoreactivity (met-enkephalin-LI and leu-enkephalin-LI, respectively) in six normal subjects and six patients with pheochromocytoma were determined. The contents of met-enkephalin-LI and leu-enkephalin-LI in two of six pheochromocytomas were 40- to 50-fold higher and those in the other ...
Yoshio Ikeda +6 more
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Plasma methionine-enkephalin-like and leucine-enkephalin-like immunoreactivity (met-enkephalin-LI and leu-enkephalin-LI, respectively) in six normal subjects and six patients with pheochromocytoma were determined. The contents of met-enkephalin-LI and leu-enkephalin-LI in two of six pheochromocytomas were 40- to 50-fold higher and those in the other ...
Yoshio Ikeda +6 more
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Influence of methionine-enkephalin on stress-induced parameters
International Journal of Immunopharmacology, 1998This study examines the influence of methionine-enkephalin (MENK) on stress-induced oxidative damage (lipid peroxidation; LPO) in mice liver homogenate, plasma corticosterone concentration (CS) and phagocytic activity of mouse splenocytes. The LPO value increased in the mice subjected to restraint stress and had no correlation to stress duration, while
Sabina Rabatić +4 more
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Total Synthesis of Methionine‐Enkephalin
Angewandte Chemie International Edition in English, 1976AbstractIm vas deferens der Maus weist das Titelpeptid (I) eine 20fache und Leucin‐Enkephalin eine 10fache Normorphin‐ Wirkung auf.
Emanuel Pietrzik +4 more
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Journal of Mass Spectrometry, 2010
Low-temperature pyrolysis of methionine-enkephalin-Arg-Gly-Leu has been carried out and the non-volatile residues have been analyzed. The fragments were separated and characterized by LC-UV/Vis-MS/MS. Two major types of pyrolysis products were identified
Mohammed A Meetani +2 more
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Low-temperature pyrolysis of methionine-enkephalin-Arg-Gly-Leu has been carried out and the non-volatile residues have been analyzed. The fragments were separated and characterized by LC-UV/Vis-MS/MS. Two major types of pyrolysis products were identified
Mohammed A Meetani +2 more
semanticscholar +1 more source
Stabilization of methionine-enkephalin in human and rat blood
Life Sciences, 1986Methods of preventing the degradation of 3H-methionine-enkephalin (3H-ME) in human blood both at 37 degrees C and under conditions of immediate cooling were examined. We found that, contrary to previous suggestions, use of aprotinin (with or without immediate cooling) was ineffective in preventing the degradation of 3H-ME in blood.
Vincent J. Aloyo +2 more
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Effect of methionine-enkephalin on xanthophore aggregation
Peptides, 1980The intracranial injection of an opioid antagonist (naloxone) caused aggregation of xanthophores in goldfish scales. This aggregating effect produced by naloxone was inhibited by an injection of methionine-enkephalin (M-ENK). M-ENK, when injected together with melatonin which normally produces aggregation of xanthophores, interfered with the effect of ...
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