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@ARTICLE{Tan:151525,
author = {Tan, Jing and Wagner, Matias and Stenton, Sarah L. and
Strom, Tim M. and Wortmann, Saskia B. and Prokisch, Holger
and Meitinger, Thomas and Oexle, Konrad and Klopstock,
Thomas},
title = {{L}ifetime risk of autosomal recessive mitochondrial
disorders calculated from genetic databases},
journal = {EBioMedicine},
volume = {54},
issn = {2352-3964},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {DZNE-2020-01109},
pages = {102730},
year = {2020},
abstract = {BackgroundMitochondrial disorders are a group of rare
diseases, caused by nuclear or mitochondrial DNA mutations.
Their marked clinical and genetic heterogeneity as well as
referral and ascertainment biases render phenotype-based
prevalence estimations difficult. Here we calculated the
lifetime risk of all known autosomal recessive mitochondrial
disorders on basis of genetic data.MethodsWe queried the
publicly available Genome Aggregation Database (gnomAD) and
our in-house exome database to assess the allele frequency
of disease-causing variants in genes associated with
autosomal recessive mitochondrial disorders. Based on this,
we estimated the lifetime risk of 249 autosomal recessive
mitochondrial disorders. Three of these disorders and
phenylketonuria (PKU) served as a proof of concept since
calculations could be aligned with known birth prevalence
data from newborn screening reports.FindingsThe estimated
lifetime risks are very close to newborn screening data
(where available), supporting the validity of the approach.
For example, calculated lifetime risk of PKU (16·0/100,000)
correlates well with known birth prevalence data
(18·7/100,000). The combined estimated lifetime risk of 249
investigated mitochondrial disorders is 31·8
(20·9–50·6)/100,000 in our in-house database, 48·4
(40·3–58·5)/100,000 in the European gnomAD dataset, and
31·1 (26·7–36·3)/100,000 in the global gnomAD dataset.
The disorders with the highest lifetime risk (> 3 per
100,000) were, in all datasets, those caused by mutations in
the SPG7, ACADM, POLG and SLC22A5 genes.InterpretationWe
provide a population-genetic estimation on the lifetime risk
of an entire class of monogenic disorders. Our findings
reveal the substantial cumulative prevalence of autosomal
recessive mitochondrial disorders, far above previous
estimates. These data will be very important for assigning
diagnostic a priori probabilities, and for resource
allocation in therapy development, public health management
and biomedical research.FundingGerman Federal Ministry of
Education and Research.},
keywords = {ATPases Associated with Diverse Cellular Activities:
genetics / Acyl-CoA Dehydrogenase: genetics / DNA Polymerase
gamma: genetics / Databases, Genetic: statistics $\&$
numerical data / Genes, Recessive / Genetic Predisposition
to Disease / Humans / Metalloendopeptidases: genetics /
Mitochondrial Diseases: epidemiology / Mitochondrial
Diseases: genetics / Solute Carrier Family 22 Member 5:
genetics},
cin = {AG Wagner / AG Levin},
ddc = {610},
cid = {I:(DE-2719)1011201 / I:(DE-2719)1111016},
pnm = {344 - Clinical and Health Care Research (POF3-344)},
pid = {G:(DE-HGF)POF3-344},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC7163308},
pubmed = {pmid:32305867},
doi = {10.1016/j.ebiom.2020.102730},
url = {https://pub.dzne.de/record/151525},
}