Systematic evaluation of olfaction in patients with hereditary cystic kidney diseases/renal ciliopathies

Background Hereditary cystic kidney diseases such as nephronophthisis, polycystic kidney disease and Bardet-Biedl syndrome (BBS) are caused by a dysfunction of primary cilia. Cilia are involved in a variety of cellular functions and perceptions, with one of them being the sense of smell. Hyposmia is...

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Main Authors: Dahmer-Heath, Mareike (Author) , Schriever, Valentin (Author) , Kollmann, Sabine (Author) , Schleithoff, Carolin (Author) , Titieni, Andrea (Author) , Cetiner, Metin (Author) , Patzer, Ludwig (Author) , Tönshoff, Burkhard (Author) , Hansen, Matthias (Author) , Pennekamp, Petra (Author) , Gerss, Joachim (Author) , Konrad, Martin (Author) , König, Jens (Author)
Format: Article (Journal)
Language:English
Published: 2021
In: Journal of medical genetics
Year: 2021, Volume: 58, Issue: 9, Pages: 629-636
ISSN:1468-6244
DOI:10.1136/jmedgenet-2020-107192
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1136/jmedgenet-2020-107192
Verlag, lizenzpflichtig, Volltext: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1136%2Fjmedgenet-2020-107192&DestApp=DOI&SrcAppSID=D3y17ssofi1qTNeYmat&SrcJTitle=JOURNAL+OF+MEDICAL+GENETICS&DestDOIRegistrantName=BMJ
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Author Notes:Mareike Dahmer-Heath, Valentin Schriever, Sabine Kollmann, Carolin Schleithoff, Andrea Titieni, Metin Cetiner, Ludwig Patzer, Burkhard Tönshoff, Matthias Hansen, Petra Pennekamp, Joachim Gerss, Martin Konrad, Jens König

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245 1 0 |a Systematic evaluation of olfaction in patients with hereditary cystic kidney diseases/renal ciliopathies  |c Mareike Dahmer-Heath, Valentin Schriever, Sabine Kollmann, Carolin Schleithoff, Andrea Titieni, Metin Cetiner, Ludwig Patzer, Burkhard Tönshoff, Matthias Hansen, Petra Pennekamp, Joachim Gerss, Martin Konrad, Jens König 
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520 |a Background Hereditary cystic kidney diseases such as nephronophthisis, polycystic kidney disease and Bardet-Biedl syndrome (BBS) are caused by a dysfunction of primary cilia. Cilia are involved in a variety of cellular functions and perceptions, with one of them being the sense of smell. Hyposmia is a typical feature found in patients with BBS. However, reports of olfactory dysfunction in other cystic kidney diseases are sparse. Here we provide a systematic survey on olfaction in a large cohort of patients displaying genetically determined renal ciliopathies. Methods We performed a match-controlled systematic olfactory evaluation in a group of 75 patients with a defined genetic background using age adapted and validated odour identification tests. Results Test results revealed a significant olfactory deficit in patients carrying TMEM67 variants (n=4), while all other genetic disorders causing nephronophthisis (n=25) or polycystic kidney disease (n=18) were not associated with an impaired sense of smell. Also in patients with BBS, olfactory performance was depending on the underlying molecular defect. While defects in the BBS1 gene (n=9) had no impact on the sense of smell, all other BBS gene disorders (n=19) were associated with significant hyposmia. Noteworthy, there was no correlation of the olfactory deficit with the level of renal impairment. Conclusion Hyposmia is a part of the clinical spectrum of BBS and of other renal ciliopathies. Depending on the genetic background, clinicians should be aware of this subtle and so far underappreciated symptom when clinically assessing patients with BBS or TMEM67 gene variants. 
650 4 |a alleles 
650 4 |a and neonatal diseases and abnormalities 
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650 4 |a congenital 
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650 4 |a hereditary 
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650 4 |a mechanisms 
650 4 |a nephrology 
650 4 |a odor identification 
650 4 |a pediatrics 
700 1 |a Schriever, Valentin  |e VerfasserIn  |4 aut 
700 1 |a Kollmann, Sabine  |e VerfasserIn  |4 aut 
700 1 |a Schleithoff, Carolin  |e VerfasserIn  |4 aut 
700 1 |a Titieni, Andrea  |e VerfasserIn  |4 aut 
700 1 |a Cetiner, Metin  |e VerfasserIn  |4 aut 
700 1 |a Patzer, Ludwig  |e VerfasserIn  |4 aut 
700 1 |a Tönshoff, Burkhard  |e VerfasserIn  |0 (DE-588)1032445823  |0 (DE-627)738463493  |0 (DE-576)173494196  |4 aut 
700 1 |a Hansen, Matthias  |e VerfasserIn  |4 aut 
700 1 |a Pennekamp, Petra  |e VerfasserIn  |4 aut 
700 1 |a Gerss, Joachim  |e VerfasserIn  |4 aut 
700 1 |a Konrad, Martin  |e VerfasserIn  |4 aut 
700 1 |a König, Jens  |e VerfasserIn  |4 aut 
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