Results 11 to 20 of about 18,028 (272)

THE DISTRIBUTION OF METHIONINE‐ENKEPHALIN AND LEUCINE‐ENKEPHALIN IN THE BRAIN AND PERIPHERAL TISSUES [PDF]

open access: bronzeBritish Journal of Pharmacology, 1977
A method is described for the rapid extraction of opioid peptides from the brain and other tissues. The method is based on acid extraction of tissues followed by adsorption of the extract onto Amberlite XAD‐2 resin. Elution with methanol separates the enkephalins and α‐endorphin from β‐endorphin.Over 90% of the opioid peptide activity isolated from ...
J, Hughes, H W, Kosterlitz, T W, Smith
openaire   +6 more sources

CD206+/MHCII− macrophage accumulation at nerve injury site correlates with attenuation of allodynia in TASTPM mouse model of Alzheimer's disease

open access: yesBrain, Behavior, & Immunity - Health, 2022
Chronic pain is undertreated in people with Alzheimer's disease (AD) and better understanding of the underlying mechanisms of chronic pain in this neurodegenerative disease is essential.
Rita Silva   +4 more
doaj   +1 more source

‘Acetaldehyde‐enkephalins’: elucidation of the structure of the acetaldehyde adducts of methionine‐enkephalin and leucine‐enkephalin [PDF]

open access: yesFEBS Letters, 1980
The two major endogenous opioid pentapeptides, methionine-enkephalin and leucine-enkephalin [ 1,2] rapidly react with acetaldehyde, under very mild conditions, to give an ‘acetaldehyde-enkephalin’ adduct, referred to as ‘acetaldehyde-enkephalin [Met’] and ‘acetaldehyde-enkephalin [Leu”], respectively 231.
Summers, Michael C.   +2 more
openaire   +3 more sources

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

Anti-Inflammatory Effect of Homo- and Heterodimers of Natural Enkephalinase Inhibitors in Experimental Colitis in Mice

open access: yesMolecules, 2020
Background: the pharmacological treatment and/or maintenance of remission in inflammatory bowel diseases (IBDs) is currently one of the biggest challenges in the field of gastroenterology.
Małgorzata Sobocińska   +3 more
doaj   +1 more source

Cellular Profiles of Prodynorphin and Preproenkephalin mRNA-Expressing Neurons in the Anterior Olfactory Tubercle of Mice

open access: yesFrontiers in Neural Circuits, 2022
The olfactory tubercle (OT) is a striatal region that receives olfactory inputs. mRNAs of prodynorphin (Pdyn) and preproenkephalin (Penk), precursors of dynorphins and enkephalins, respectively, are strongly expressed in the striatum. Both produce opioid
Ayako Maegawa   +9 more
doaj   +1 more source

The effect of ethanol consumption on the carboxypeptidase E activity on different age rats posterity

open access: yesИзвестия высших учебных заведений. Поволжский регион: Естественные науки, 2022
Background. The consumption of ethanol by dams strongly effects the offspring’s body, its health both at birth and throughout life. This effect has a particularly strong effect on the functioning of various regulatory systems, in particular ...
A.N. Vernigora, N.V. Volkova
doaj   +1 more source

Delta opioid receptors on nociceptive sensory neurons mediate peripheral endogenous analgesia in colitis

open access: yesJournal of Neuroinflammation, 2022
Background Inflammatory visceral pain is endogenously controlled by enkephalins locally released by mucosal CD4+ T lymphocytes in mice. The present study aimed at identifying opioid receptor(s) expressed on nociceptive sensory nerves involved in this ...
Xavier Mas-Orea   +5 more
doaj   +1 more source

Proenkephalin A 119-159 (Penkid) Is an Early Biomarker of Septic Acute Kidney Injury: The Kidney in Sepsis and Septic Shock (Kid-SSS) Study [PDF]

open access: yes, 2018
Introduction: Sepsis is the leading cause of acute kidney injury (AKI) in critically ill patients. The Kidney in Sepsis and Septic Shock (Kid-SSS) study evaluated the value of proenkephalin A 119-159 (penkid)—a sensitive biomarker of glomerular function,
Antonelli, M.   +25 more
core   +2 more sources

Neuropeptidases, Stress, and Memory—A Promising Perspective

open access: yesAIMS Neuroscience, 2016
Stress has been demonstrated to be a key modulator in learning and memory processes, in which the hippocampus plays a central role. A great number of neuropeptides have been reported to modulate learning and memory under stressful conditions ...
I. Prieto   +3 more
doaj   +1 more source

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