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Opioids, opioid receptors, and the immune response

Drug and Alcohol Dependence, 2001
It is now clear that opioid receptors participate in the function of the cells of the immune system, and evidence suggests that opioids modulate both innate and acquired immune responses. We review literature here which establishes that mu-, kappa-, and delta-opioid compounds alter resistance to a variety of infectious agents, including the Human ...
L, McCarthy   +4 more
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Opioids and Opioid Receptors in Peripheral Tissues

Scandinavian Journal of Gastroenterology, 1987
Opioid peptides belonging to the enkephalin, beta-endorphin or dynorphin family, acting on specific opiate receptors may be found in peripheral tissues. Enkephalins have a widespread peripheral distribution, while beta-endorphin and dynorphin may be found locally in the enteric nervous system.
T, Hedner, J, Cassuto
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Opioid Receptors

Annual Review of Medicine, 2016
Opioids are the oldest and most potent drugs for the treatment of severe pain. Their clinical application is undisputed in acute (e.g., postoperative) and cancer pain, but their long-term use in chronic pain has met increasing scrutiny. This article reviews mechanisms underlying opioid analgesia and other opioid actions.
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Steroids and opioid receptors

The Journal of Steroid Biochemistry and Molecular Biology, 1994
The genomic mode of action is believed to represent the predominant effect of a steroid hormone. Recently, however, rapidly manifesting, non-genomic effects have also been observed. These are mediated mostly by allosteric interaction of a steroid with heterologous target structures such as membrane receptors, a prototype example being the GABAA.
S, Schwarz, P, Pohl
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Opioid Peptides and their Receptors

1982
The three agonists, methionine-enkephalin, leucine-enkephalin and beta-endorphin have different pharmacological patterns. It may be of particular importance that they vary in their relative affinities to the enkephalin and naltrexone binding sites in the brain; the former are probably related to delta-receptors prevalent in the mouse vas deferens and ...
H.W. Kosterlitz   +2 more
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Opioid receptors and endogenous opioid peptides

Medicinal Research Reviews, 1991
The field to be reviewed is now 16 years old and is based on knowledge dating back centuries. It is therefore evident that an exhaustive review is impossible. The author plans to discuss areas likely to be of interest to the readers of this journal.
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Opioids, Receptors, and Immunity

1993
The results achieved by those seeking to determine whether opioids and other drugs of abuse can affect immunity are quite astonishing given the short period of time that research has focused on this area. Despite the fact that there is no longer any question that opioids produce a variety of effects on the immune system, the extent and significance of ...
M W, Adler   +4 more
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Opioid Receptors

2021
Opioid receptors, beyond their involvement in pain transmission, play a number of relevant physiological roles in the central nervous system and in peripheral organs. Opioid receptors can be considered a crossroads where endogenous opioid peptides and foreign opioids and opiates meet the cell and transmit their messages to another vast array of ...
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Oligomerization of opioid receptors

Methods, 2002
Opioid receptors belong to the family of G-protein-coupled receptors characterized by their seven transmembrane domains. The activation of these receptors by agonists such as morphine and endogenous opioid peptides leads to the activation of inhibitory G-proteins followed by a decrease in the levels of intracellular cAMP.
Ivone, Gomes   +3 more
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Opioid Receptor Regulation

NeuroMolecular Medicine, 2004
Opioid receptors are regulated by multiple mechanisms, which are believed to contribute to the physiological plasticity of the endogenous opioid system in response to natural neuropeptides, as well as clinically relevant opiate drugs. Considerable progress has been made in elucidating molecular and cellular mechanisms of opioid receptor regulation. The
openaire   +2 more sources

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