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Genomic analyses of...
Genomic analyses of a large Swedish multi-incident kindred with autosomal dominant Parkinson’s disease with dementia
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- Rödström, E. Ygland (författare)
- Lund University,Lunds universitet,Klinisk neurogenetik,Forskargrupper vid Lunds universitet,Clinical Neurogenetics,Lund University Research Groups,Skåne University Hospital
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- Soto-Beasley, A. (författare)
- Mayo Clinic Florida
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- Englund, E. (författare)
- Lund University,Lunds universitet,Skåne University Hospital
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- Kafantari, E. (författare)
- Lund University,Lunds universitet,Klinisk neurogenetik,Forskargrupper vid Lunds universitet,Clinical Neurogenetics,Lund University Research Groups,Skåne University Hospital
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- Dickson, D.W. (författare)
- Mayo Clinic Florida
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- Wszolek, Z.K. (författare)
- Mayo Clinic Florida
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- Puschmann, A. (författare)
- Lund University,Lunds universitet,Klinisk neurogenetik,Forskargrupper vid Lunds universitet,Clinical Neurogenetics,Lund University Research Groups,Skåne University Hospital
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- Ross, O.A. (författare)
- Mayo Clinic Florida
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Parkinsonism & Related Disorders. - 1353-8020. ; 113:Supp, s. 28-29
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background:The known genetic causes for Parkinson’s disease (PD) onlyexplain a small proportion of the familial aggregation of PD. Despiteintensive efforts by researchers internationally, identifying and confirmingadditional monogenic causes for PD has been difficult.Methods:We examined 16 members of a large family with multi-incidentPD and dementia. Eight members were examined by whole exome (WES)or whole genome sequencing. Rare variants co-segregating with the disease were evaluated based on their distribution in additional familymembers and known gene functions. WES data from 843 PD cases and 885controls were screened for the two most highly ranked candidate variantsand used for gene burden analysis.Results:Clinically, all affected family members had typical PD withcognitive decline. Two affected individuals showed typical PD neuropathology. Out of nine genetic variants identified, we highlighted two as goodcandidates for causing this family’s PD. However, co-segregation with PDwas imperfect and this study was complicated by the fact that somegenotyped family members showed mild motor symptoms of uncertaincause, or cognitive decline without apparent motor dysfunction. Geneburden analysis showed no difference between cases and controls in thefrequency of potentially deleterious variants in the top-candidate genes.Nonetheless, factors that could indicate an impact of either of the two topcandidate genetic variants were found as one of the variants was identifiedin one additional familial PD proband from the case series and geneticvariants in the other top-candidate gene had previously been associatedwith an increased risk for PD in humans.Conclusions: Our study was not able to determine a single high-impactvariant as the cause of PD with cognitive decline in the family despitedetailed clinical and genetic assessments, but we nominate two potentialcandidate variants. Reduced penetrance and phenocopies may complicategenomic studies of families with PD.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medical Genetics (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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