Atypical parkinsonism in the Caribbean island of Guadeloupe: etiological role of the mitochondrial complex I inhibitor annonacin.
Identifieur interne : 002418 ( PubMed/Checkpoint ); précédent : 002417; suivant : 002419Atypical parkinsonism in the Caribbean island of Guadeloupe: etiological role of the mitochondrial complex I inhibitor annonacin.
Auteurs : Annie Lannuzel [France] ; Merle Ruberg ; Patrick P. MichelSource :
- Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2008.
English descriptors
- KwdEn :
- Animals, Electron Transport Complex I (antagonists & inhibitors), Furans (administration & dosage), Guadeloupe (epidemiology), Humans, Lactones (administration & dosage), Mitochondria (drug effects), Mitochondria (metabolism), Parkinsonian Disorders (epidemiology), Parkinsonian Disorders (etiology), Parkinsonian Disorders (pathology).
- MESH :
- chemical , administration & dosage : Furans, Lactones.
- chemical , antagonists & inhibitors : Electron Transport Complex I.
- geographic , epidemiology : Guadeloupe.
- drug effects : Mitochondria.
- epidemiology : Parkinsonian Disorders.
- etiology : Parkinsonian Disorders.
- metabolism : Mitochondria.
- pathology : Parkinsonian Disorders.
- Animals, Humans.
Abstract
On the French West Indian island of Guadeloupe, atypical parkinsonian patients represent two-thirds of all cases of parkinsonism, which is exceptionally frequent compared to epidemiological data from European countries where atypical parkinsonism accounts for only approximately 5% of all cases. The clinical entity was a unique combination of levodopa-resistant parkinsonism, tremor, myoclonus, hallucinations, REM sleep behavior disorder and fronto-subcortical dementia. Based on the presence or the absence of supranuclear gaze palsy, two subgroups of patients were distinguished. In patients with oculomotor signs that came to autopsy, neuronal loss was found to predominate in the substantia nigra and the striatum but other brain areas were also affected, including the frontal cortex. In addition, tau-containing lesions were detected throughout the brain. Epidemiological data suggested a close association of the disease with the regular consumption of soursop, a tropical annonaceous plant. Experimental studies performed in midbrain cell cultures identified annonacin, a selective mitochondrial complex I inhibitor contained in the fruit and leaves of soursop, as a probable etiological factor. Consistent with this view, chronic administration of annonacin to rats through Alzet osmotic minipumps showed that annonacin was able to reproduce the brain lesions characteristic of the human disease.
DOI: 10.1002/mds.22300
PubMed: 18816693
Affiliations:
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The clinical entity was a unique combination of levodopa-resistant parkinsonism, tremor, myoclonus, hallucinations, REM sleep behavior disorder and fronto-subcortical dementia. Based on the presence or the absence of supranuclear gaze palsy, two subgroups of patients were distinguished. In patients with oculomotor signs that came to autopsy, neuronal loss was found to predominate in the substantia nigra and the striatum but other brain areas were also affected, including the frontal cortex. In addition, tau-containing lesions were detected throughout the brain. Epidemiological data suggested a close association of the disease with the regular consumption of soursop, a tropical annonaceous plant. Experimental studies performed in midbrain cell cultures identified annonacin, a selective mitochondrial complex I inhibitor contained in the fruit and leaves of soursop, as a probable etiological factor. Consistent with this view, chronic administration of annonacin to rats through Alzet osmotic minipumps showed that annonacin was able to reproduce the brain lesions characteristic of the human disease.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">18816693</PMID><DateCreated><Year>2008</Year><Month>12</Month><Day>01</Day></DateCreated><DateCompleted><Year>2009</Year><Month>04</Month><Day>08</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1531-8257</ISSN><JournalIssue CitedMedium="Internet"><Volume>23</Volume><Issue>15</Issue><PubDate><Year>2008</Year><Month>Nov</Month><Day>15</Day></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. 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In patients with oculomotor signs that came to autopsy, neuronal loss was found to predominate in the substantia nigra and the striatum but other brain areas were also affected, including the frontal cortex. In addition, tau-containing lesions were detected throughout the brain. Epidemiological data suggested a close association of the disease with the regular consumption of soursop, a tropical annonaceous plant. Experimental studies performed in midbrain cell cultures identified annonacin, a selective mitochondrial complex I inhibitor contained in the fruit and leaves of soursop, as a probable etiological factor. 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Michel</name><name sortKey="Ruberg, Merle" sort="Ruberg, Merle" uniqKey="Ruberg M" first="Merle" last="Ruberg">Merle Ruberg</name></noCountry><country name="France"><noRegion><name sortKey="Lannuzel, Annie" sort="Lannuzel, Annie" uniqKey="Lannuzel A" first="Annie" last="Lannuzel">Annie Lannuzel</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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