Page last updated: 2024-10-15

preproenkephalin

Description

preproenkephalin: initial enkephalin precursor [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID156963621
MeSH IDM0104349

Synonyms (1)

Synonym
preproenkephalin

Research Excerpts

Overview

Preproenkephalin (PPE) is a precursor molecule for multiple endogenous opioid peptides. PPEs are involved in a wide variety of modulatory functions in the nervous system. The preproenkphalin A gene is a neurotransmitter gene whose expression can be modulated by neuronal activity.

ExcerptReference
"Preproenkephalin (PPE) is a precursor molecule for multiple endogenous opioid peptides Leu-enkephalin (ENK) and Met-ENK, which are involved in a wide variety of modulatory functions in the nervous system. "( Transcriptional Regulatory Role of NELL2 in Preproenkephalin Gene Expression.
Choi, J; Ha, CM; Jeong, JK; Kang, D; Kim, DH; Kim, HR; Kim, Y; Lee, BJ; Lee, TH; Ojeda, SR; Park, JW, 2022
)
"The preproenkephalin A gene is a neurotransmitter gene whose expression can be modulated "trans-synaptically" by changes in neuronal activity. "( Preproenkephalin promoter "cassette" confers brain expression and synaptic regulation in transgenic mice.
Brannock, MT; Donovan, DM; O'Hara, BF; Takemura, M; Uhl, GR, 1992
)

Toxicity

ExcerptReference
" Thus, the toxic effects were structure selective but not mediated through opioid receptors."( Cytotoxic effects of dynorphins through nonopioid intracellular mechanisms.
Aguilar-Santelises, M; Bakalkin, G; Cebers, G; Gileva, I; Hauser, KF; Hoon Goh, B; Reznikov, K; Tan-No, K; Terenius, L; Yakovleva, T, 2001
)
" R6W and wt Dyn A peptides were most toxic to primary cerebellar neurons."( Altered secondary structure of Dynorphin A associates with loss of opioid signalling and NMDA-mediated excitotoxicity in SCA23.
Bakalkin, G; Dooley, C; Marrink, SJ; McLaughlin, J; Melo, MN; Reits, E; Sinke, RJ; Smeets, CJ; Stargardt, A; Verbeek, DS; Zmorzyńska, J, 2016
)

Compound-Compound Interactions

ExcerptReference
" Using in situ hybridization combined with ABC immunocytochemistry for serotonin (5-HT) in the same pineal sections, the PPEnk mRNA labeling cells are found not to be serotonin-immunoreactive cells."( Cells expressing preproenkephalin mRNA in the rat pineal gland are not serotonin-producing pinealocytes: evidence using in situ hybridization combined with immunocytochemistry for serotonin.
Pappas, GD; Sagen, J; Unnerstall, JR; Wang, XT, 1996
)

Dosage Studied

The response of preproenkephalin, c-fos and zif/268 mRNAs to such a dosing regimen is unknown.

ExcerptReference
" However, the response of preproenkephalin, c-fos and zif/268 mRNAs to such a dosing regimen is unknown."( Cocaine binges differentially alter striatal preprodynorphin and zif/268 mRNAs.
Daunais, JB; McGinty, JF, 1995
)
" In the present study, dose-response effects of acute administration of these stimulants on preproenkephalin (PPE) mRNA expression in the rat striatum were investigated with quantitative in situ hybridization histochemistry 3 h after injection."( D1 and D2 receptor regulation of preproenkephalin and preprodynorphin mRNA in rat striatum following acute injection of amphetamine or methamphetamine.
McGinty, JF; Wang, JQ, 1996
)
" These results indicate that the mode of administration of a D2 dopamine receptor agonist, such as U91356A, although at a roughly equivalent dosage influences the extent of inhibition of the expression of PPE in the denervated striatum of monkeys."( Preproenkephalin mRNA expression in the caudate-putamen of MPTP monkeys after chronic treatment with the D2 agonist U91356A in continuous or intermittent mode of administration: comparison with L-DOPA therapy.
Bédard, PJ; Blanchet, PJ; Calon, F; Di Paolo, T; Goulet, M; Morissette, M; Soghomonian, JJ, 1997
)
"09 mg/kg/injection in a within-session dose-response curve (0."( Blunted response to cocaine in the Flinders hypercholinergic animal model of depression.
Fagergren, P; Goiny, M; Hurd, YL; Overstreet, DH, 2005
)
" Here, we used clinically relevant dosing to examine the effects of maternally administered sustained-release naltrexone on the rat brain by examining offspring at birth and in adulthood."( Maternally administered sustained-release naltrexone in rats affects offspring neurochemistry and behaviour in adulthood.
Dunlop, SA; Farid, WO; Hulse, GK; Krstew, EV; Lawrence, AJ; Tait, RJ, 2012
)
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (1,257)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990199 (15.83)18.7374
1990's469 (37.31)18.2507
2000's354 (28.16)29.6817
2010's206 (16.39)24.3611
2020's29 (2.31)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials3 (0.23%)5.53%
Reviews62 (4.80%)6.00%
Case Studies4 (0.31%)4.05%
Observational1 (0.08%)0.25%
Other1,222 (94.58%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]