Results 1 to 10 of about 15,501 (138)

Synthesis of New Opioid Analgesic Peptide Analogues to Enkephalin (Leucine- and Methionine-Enkephalin)

open access: yesIraqi Journal of Pharmaceutical Sciences, 2017
A small number of researches were done in the design and synthesis of enkephalin analogues that are able to resist degradation effect of proteolytic enzymes with good bioavailability and half-lives.Through studying structure activity relationships we ...
Muthanna S. Al-Ttaee   +2 more
doaj   +5 more sources

Role of enkephalin derivative in promoting wound healing and scar remodeling via increased epidermal growth factor in a mouse model [PDF]

open access: yesArchives of Aesthetic Plastic Surgery, 2023
Background Enkephalin, an endogenous neuropeptide, binds to the delta (δ) opioid receptor and exerts an antinociceptive effect. Recent studies have suggested that neuropeptides might effectuate cutaneous wound healing.
Sun Eung Kim   +2 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

Active site mutations change the cleavage specificity of neprilysin. [PDF]

open access: yesPLoS ONE, 2012
Neprilysin (NEP), a member of the M13 subgroup of the zinc-dependent endopeptidase family is a membrane bound peptidase capable of cleaving a variety of physiological peptides.
Travis Sexton   +4 more
doaj   +1 more source

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

open access: yesBritish 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 ...
Jeffery Hughes   +2 more
openaire   +5 more sources

‘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   +4 more sources

Measurement of tissue azithromycin levels in self-collected vaginal swabs post treatment using liquid chromatography and tandem mass spectrometry (LC-MS/MS). [PDF]

open access: yesPLoS ONE, 2017
Azithromycin is recommended for the treatment of uncomplicated urogenital chlamydia infection although the standard 1gram dose sometimes fails to eradicate the infection (treatment failure).
Lenka A Vodstrcil   +12 more
doaj   +1 more source

Review of Kyotorphin Research: A Mysterious Opioid Analgesic Dipeptide and Its Molecular, Physiological, and Pharmacological Characteristics

open access: yesFrontiers in Medical Technology, 2021
Tyrosine-arginine (kyotorphin), an opioid analgesic dipeptide, was discovered more than 40 years ago in 1979. The evidence accumulated during this period has established the physiological significance of kyotorphin as a neuromodulating peptide, and ...
Hiroshi Ueda, Hiroshi Ueda, Hiroshi Ueda
doaj   +1 more source

Methionine-enkephalin and leucine-enkephalin in human sympathoadrenal system and pheochromocytoma. [PDF]

open access: yesJournal of Clinical Investigation, 1982
To elucidate the physiological and pathophysiological significance of methionine- and leucine-enkephalin (Met-and Leu-enkephalin, respectively) in human sympathoadrenal system, the contents of these peptides in normal human sympathetic nervous system, adrenal medulla, and pheochromocytomas were determined by specific radioimmunoassays combined with ...
Hiroo Imura   +4 more
openaire   +2 more sources

Enkephalin Leucine Microspheres Suspension as a Sustained Antiplaque Antimicrobial Delivery System

open access: yesAl-Mustansiriyah Journal of Pharmaceutical Sciences, 2010
The purpose of this study is to prepare a formulation containing enkephalin leucine as an antiplaque/antibacterial agent. Enkephalin leucine microspheres were prepared using a poly(D-L-lactide-co-glycolide) (PLGA) as a delivery system.
Laith H. Samein
doaj   +1 more source

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