Results 21 to 30 of about 35,312 (157)

An Effective and Safe Enkephalin Analog for Antinociception

open access: yesPharmaceutics, 2021
Opioids account for 69,000 overdose deaths per annum worldwide and cause serious side effects. Safer analgesics are urgently needed. The endogenous opioid peptide Leu-Enkephalin (Leu-ENK) is ineffective when introduced peripherally due to poor stability ...
K. K. DurgaRao Viswanadham   +13 more
doaj   +1 more source

Effects of Long-term antipsychotic treatment on enkephalin-immunoreactive neurons in rats perinatally treated with phencyclidine [PDF]

open access: yesMedicinski Podmladak, 2023
Introduction: Schizophrenia is a chronic mental illness that affects 1% of the world's population. The phencyclidine animal model of schizophrenia is based on the glutamate theory of the development of schizophrenia.
Kompanijec Anja   +2 more
doaj   +1 more source

Effect of met-enkephalin on chromosomal aberrations in the lymphocytes of the peripheral blood of patients with multiple sclerosis

open access: yesBiomolecules & Biomedicine, 2014
Endogenious opiod met-enkephalin throughout previous research manifested cytoprotective and anti-inflammatory effects. Previous research suggests that met-enkephalin has cytogenetic effects.
Maida Rakanović-Todić   +3 more
doaj   +1 more source

Enkephalin as a Pivotal Player in Neuroadaptations Related to Psychostimulant Addiction

open access: yesFrontiers in Psychiatry, 2018
Enkephalin expression is high in mesocorticolimbic areas associated with psychostimulant-induced behavioral and neurobiological effects, and may also modulate local neurotransmission in this circuit network.
Bethania Mongi-Bragato   +4 more
doaj   +1 more source

Exposure to exogenous enkephalins disrupts reproductive development in the Eastern lubber grasshopper, Romalea microptera (Insecta: Orthoptera). [PDF]

open access: yesPLoS ONE, 2012
Enkephalins play a major role in reproductive physiology in crustaceans; however their role in reproductive development in insects is largely unknown. We investigated the effect of exposure to exogenous leucine-enkephalin (Leu-Enk), methionine-enkephalin
Sandeep Kumar   +4 more
doaj   +1 more source

Synthetic Analogue of Leu-Enkephalin Prevents Endothelial Dysfunction in vitro

open access: yesОбщая реаниматология, 2018
The purpose of the study was to determine the efficacy of a synthetic leu-enkephalin stabilized analogue to prevent damage of endothelial cells monolayer in vitro caused by serum samples from septic shock patients.Materials and methods.
O. A. Grebenchikov   +8 more
doaj   +1 more source

Delta Opioid Receptor Signaling Promotes Resilience to Stress Under the Repeated Social Defeat Paradigm in Mice

open access: yesFrontiers in Molecular Neuroscience, 2018
The adaptation to chronic stress is highly variable across individuals. Resilience to stress is a complex process recruiting various brain regions and neurotransmitter systems. The aim of this study was to investigate the involvement of endogenous opioid
Mathilde S. Henry   +10 more
doaj   +1 more source

Cocaine Reduces the Neuronal Population While Upregulating Dopamine D2-Receptor-Expressing Neurons in Brain Reward Regions: Sex-Effects

open access: yesFrontiers in Pharmacology, 2021
Addiction to cocaine is associated with dysfunction of the dopamine mesocortical system including impaired dopamine-2 receptor (D2r) signaling. However, the effects of chronic cocaine on neuronal adaptations in this system have not been systematically ...
Kevin Clare   +7 more
doaj   +1 more source

Alterations in Cortical and Basal Ganglia Levels of Opioid Receptor Binding in a Rat Model of l-DOPA-Induced Dyskinesia

open access: yesNeurobiology of Disease, 2001
Opioid receptor-binding autoradiography was used as a way to map sites of altered opioid transmission in a rat model of l-DOPA-induced dyskinesia. Rats with unilateral 6-hydroxydopamine lesions of the nigrostriatal pathways sustained a 3-week treatment ...
P.A. Johansson   +3 more
doaj   +1 more source

Avian opioid peptides: evolutionary considerations, functional roles and a challenge to address critical questions

open access: yesFrontiers in Physiology, 2023
The present review considers the putative hormonal opioid peptides in birds. In birds and all other vertebrates, there are four opioid related genes encoding a series of peptides.
Krystyna Pierzchała-Koziec   +1 more
doaj   +1 more source

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