Results 11 to 20 of about 74,218 (327)

Chronic morphine treatment attenuates cell growth of human BT474 breast cancer cells by rearrangement of the ErbB signalling network. [PDF]

open access: yes, 2013
There is increasing evidence that opioid analgesics may interfere with tumour growth. It is currently thought that these effects are mediated by transactivation of receptor tyrosine kinase (RTK)-controlled ERK1/2 and Akt signalling.
Ammer, Hermann   +2 more
core   +8 more sources

Estradiol and Mu opioid-mediated reward: The role of estrogen receptors in opioid use

open access: yesAddiction Neuroscience, 2023
Opioid use and opioid use disorder are characterized by sex and gender differences, and some of these differences may be mediated by differences in the hormonal milieu within and across individuals.
Sarah B. Ethridge, Mark A. Smith
doaj   +1 more source

Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals

open access: yesFrontiers in Neuroscience, 2022
Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also
Yoshihisa Uenoyama   +4 more
doaj   +1 more source

Cellular and circuit diversity determines the impact of endogenous opioids in the descending pain modulatory pathway

open access: yesFrontiers in Systems Neuroscience, 2022
The descending pain modulatory pathway exerts important bidirectional control of nociceptive inputs to dampen and/or facilitate the perception of pain. The ventrolateral periaqueductal gray (vlPAG) integrates inputs from many regions associated with the ...
Kylie B. McPherson   +2 more
doaj   +1 more source

Different neuronal populations mediate inflammatory pain analgesia by exogenous and endogenous opioids

open access: yeseLife, 2020
Mu-opioid receptors (MORs) are crucial for analgesia by both exogenous and endogenous opioids. However, the distinct mechanisms underlying these two types of opioid analgesia remain largely unknown.
Xin-Yan Zhang   +6 more
doaj   +1 more source

Liraglutide Activates Glucagon-Like Peptide 1 Receptor to Attenuate Hyperglycemia through Endogenous Beta-Endorphin in Diabetic Rats

open access: yesPharmaceuticals, 2020
Liraglutide, an acylated analog of glucagon-like peptide 1 (GLP-1), could improve glycemic control in diabetes. Moreover, endogenous opioid peptides play a role in blood sugar regulation.
Kai-Chun Cheng   +4 more
doaj   +1 more source

Endogenous Opioids in Crohn’s Disease

open access: yesBiomedicines, 2023
Caring for patients with Crohn’s disease (CD) is a serious challenge in modern medicine. The increasing incidence of CD among adolescents and the severe course of the disease create the need for new methods of diagnosis and therapy. Endogenous opioids are a group of low molecular weight chemical compounds with analgesic and anti-inflammatory properties.
Adrian Martyniak   +2 more
openaire   +5 more sources

Crosstalk between Opioid and Anti-Opioid Systems: An Overview and Its Possible Therapeutic Significance

open access: yesBiomolecules, 2020
Opioid peptides and receptors are broadly expressed throughout peripheral and central nervous systems and have been the subject of intense long-term investigations.
Ewa Gibula-Tarlowska   +1 more
doaj   +1 more source

Peripherally Acting Opioids in Orofacial Pain

open access: yesFrontiers in Neuroscience, 2021
The activation of opioid receptors by exogenous or endogenous opioids can produce significant analgesic effects in peripheral tissues. Numerous researchers have demonstrated the expression of peripheral opioid receptors (PORs) and endogenous opioid ...
Qing Liu   +10 more
doaj   +1 more source

An opioid-like system regulating feeding behavior in C. elegans [PDF]

open access: yes, 2015
Neuropeptides are essential for the regulation of appetite. Here we show that neuropeptides could regulate feeding in mutants that lack neurotransmission from the motor neurons that stimulate feeding muscles. We identified nlp-24 by an RNAi screen of 115
Artyukhin, Alexander B.   +3 more
core   +3 more sources

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