{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T01:53:54Z","timestamp":1777686834975,"version":"3.51.4"},"reference-count":36,"publisher":"SAGE Publications","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JHD"],"published-print":{"date-parts":[[2023,12,15]]},"abstract":"<jats:p>Background: Huntington\u2019s disease (HD) is a genetic neurodegenerative disease caused by trinucleotide repeat CAG expansions in the human HTT gene. Early onset juvenile HD (JHD) in children is the most severe form of the disease caused by high CAG repeat numbers of the HTT gene. Objective: To gain understanding of human HD mechanisms hypothesized to involve dysregulated proteomes of brain regions that regulate motor and cognitive functions, this study analyzed the proteomes of human JHD cortex and putamen brain regions compared to age-matched controls. Methods: JHD and age-matched control brain tissues were assessed for CAG repeat numbers of HTT by PCR. Human brain JHD brain cortex regions of BA4 and BA6 with the putamen region (n\u200a=\u200a5) were analyzed by global proteomics, compared to age-matched controls (n\u200a=\u200a7). Protein interaction pathways were assessed by gene ontology (GO), STRING-db, and KEGG bioinformatics. Results: JHD brain tissues were heterozygous for one mutant HTT allele containing 60 to 120 CAG repeats, and one normal HTT allele with 10 to 19 CAG repeats. Proteomics data for JHD brain regions showed dysregulated mitochondrial energy pathways and changes in synaptic systems including peptide neurotransmitters. JHD compared to control proteomes of cortex and putamen displayed (a) proteins present only in JHD, (b) proteins absent in JHD, and (c) proteins that were downregulated or upregulated. Conclusions: Human JHD brain cortex and putamen regions display significant dysregulation of proteomes representing deficits in mitochondrial and synaptic neurotransmission functions. These findings advance understanding of JHD brain molecular mechanisms associated with HD disabilities.<\/jats:p>","DOI":"10.3233\/jhd-230577","type":"journal-article","created":{"date-parts":[[2023,12,15]],"date-time":"2023-12-15T11:17:24Z","timestamp":1702639044000},"page":"315-333","source":"Crossref","is-referenced-by-count":1,"title":["Dysregulation of Human Juvenile Huntington\u2019s Disease Brain Proteomes in Cortex and Putamen Involves Mitochondrial and Neuropeptide Systems"],"prefix":"10.1177","volume":"12","author":[{"given":"Sonia","family":"Podvin","sequence":"first","affiliation":[{"name":"Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Mosier","sequence":"additional","affiliation":[{"name":"Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, 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