| pubmed-article:14552886 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0030567 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0013384 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0332281 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0205217 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0017262 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0071924 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C2911684 | lld:lifeskim |
| pubmed-article:14552886 | lifeskim:mentions | umls-concept:C0185117 | lld:lifeskim |
| pubmed-article:14552886 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:14552886 | pubmed:dateCreated | 2003-10-13 | lld:pubmed |
| pubmed-article:14552886 | pubmed:abstractText | Long-term treatment of Parkinson's disease with levodopa is compromised by the development of motor complications, including on-off fluctuations and involuntary movements termed dyskinesia. The neural mechanisms underlying treatment-related dyskinesias may involve underactivity of the output regions of the basal ganglia, i.e., the medial segment of the globus pallidus (GPm) and substantia nigra pars reticulata (SNR). Increased activity of GABAergic neurons of the "direct" striatopallidal pathway has been implicated in the suppression of the GPm and SNR and thus the development of dyskinesia. The direct pathway uses opioids as a co-neurotransmitter. These opioid peptides are products of the high-molecular weight opioid precursor pre-proenkephalin B (PPE-B). In situ hybridisation studies were employed to investigate PPE-B mRNA expression in postmortem striatal tissue from patients with a clinicopathological diagnosis of Parkinson's disease, all of whom displayed levodopa-induced motor complications, including dyskinesia prior to death and in the caudate-putamen (striatum) of the MPTP-lesioned macaque model of Parkinson's disease with treatment-related dyskinesia. Striatal PPE-B mRNA expression was significantly increased by 172% in dyskinetic Parkinson's disease patients compared to age-matched controls. This increase was heterogeneous with increased expression within the striosomes compared to matrix compartments of the striatum. Striatal PPE-B mRNA expression was significantly increased by 185% in the MPTP-lesioned macaque exhibiting dyskinesia, compared to parkinsonian, nondyskinetic MPTP-lesioned macaques, and by 146% compared to non-parkinsonian, nondyskinetic controls. Increased PPE-B mRNA expression, with subsequent elevations in opioid peptide transmission within the direct striatal output pathways, may underlie treatment-related dyskinesia in Parkinson's disease. | lld:pubmed |
| pubmed-article:14552886 | pubmed:language | eng | lld:pubmed |
| pubmed-article:14552886 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:14552886 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:14552886 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:14552886 | pubmed:month | Oct | lld:pubmed |
| pubmed-article:14552886 | pubmed:issn | 0014-4886 | lld:pubmed |
| pubmed-article:14552886 | pubmed:author | pubmed-author:FoxSusan HSH | lld:pubmed |
| pubmed-article:14552886 | pubmed:author | pubmed-author:CrossmanAlan... | lld:pubmed |
| pubmed-article:14552886 | pubmed:author | pubmed-author:BrotchieJonat... | lld:pubmed |
| pubmed-article:14552886 | pubmed:author | pubmed-author:DutySusanS | lld:pubmed |
| pubmed-article:14552886 | pubmed:author | pubmed-author:HenryBrianB | lld:pubmed |
| pubmed-article:14552886 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:14552886 | pubmed:volume | 183 | lld:pubmed |
| pubmed-article:14552886 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:14552886 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:14552886 | pubmed:pagination | 458-68 | lld:pubmed |
| pubmed-article:14552886 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
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| pubmed-article:14552886 | pubmed:year | 2003 | lld:pubmed |
| pubmed-article:14552886 | pubmed:articleTitle | Increased striatal pre-proenkephalin B expression is associated with dyskinesia in Parkinson's disease. | lld:pubmed |
| pubmed-article:14552886 | pubmed:affiliation | Manchester Movement Disorder Laboratory, 1.124 Division of Neuroscience, School of Biological Sciences, Stopford Building, University of Manchester, Oxford Road, M13 9PT, Manchester, UK. | lld:pubmed |
| pubmed-article:14552886 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:14552886 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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