The Complex Genetic Landscape of Hereditary Ataxias in Turkey and Implications in Clinical Practice     
Yazarlar (74)
Atay Vural
Koç Üniversitesi, Türkiye
Gülşah Şimşir
Şeyma Tekgül
Cemile Koçoğlu
Fulya Akçimen
Ece Kartal
Nesli E. Şen
Suna Lahut
Özgür Ömür
Türkiye
Özgür Ömür
Nazan Saner
Türkiye
Tuğçe Gül
Türkiye
Tuğçe Gül
Elif Bayraktar
Robin Palvadeau
Ceren Tunca
Carolıne Pırkevı Çetinkaya
Aslı Gündoğdu Eken
Türkiye
Irmak Şahbaz
Müge Kovancılar Koç
Özgür Öztop Çakmak
Türkiye
Haşmet Ayhan Hanağası
İstanbul Üniversitesi, Türkiye
Başar Bilgiç
İstanbul Üniversitesi, Türkiye
Mefküre Eraksoy
Türkiye
Ayşegül Gündüz
İstanbul Üniversitesi-Cerrahpaşa, Türkiye
Hülya Apaydın
İstanbul Üniversitesi-Cerrahpaşa, Türkiye
Güneş Kızıltan
İstanbul Üniversitesi-Cerrahpaşa, Türkiye
Fatma Sibel Özekmekçi
Türkiye
Aksel Siva
Türkiye
Ayşe Altıntaş
Türkiye
Zeynep Ece Kaya Güleç
Türkiye
Fatma Yeşim Parman
Türkiye
Zehra Piraye Oflazer
Türkiye
Feza Deymeer
Türkiye
Hacer Durmuş Tekçe
Türkiye
Erdi Şahin
Türkiye
Arman Çakar
Türkiye
Zeynep Tüfekçioğlu
Türkiye
Pınar Tektürk
M. Osman Çorbalı
Hülya Tırelı
Türkiye
Gülden Akdal Halmagyı
Türkiye
Uluç Yiş
Türkiye
Ayşe Semra Hız
Türkiye
İhsan Şengün
Elçin Bora
Türkiye
Gül Serdaroğlu
Çiğdem Sevda Erer Özbek
Türkiye
Kadriye Ağan Yıldırım
Türkiye
Dilek Günal
Türkiye
Önder Us
Türkiye
Semiha G. Kurt
Prof. Dr. Dürdane AKSOY Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Ayşe Bora Tokçaer
Muhsin Elmas
Türkiye
Murat Gültekin
Türkiye
Sefer Kumandaş
Türkiye
Hamit Acer
Türkiye
Gül Demet Kaya Özçora
Türkiye
Vildan Yayla
Aysun Soysal
Türkiye
Gençer Genç
Sağlık Bilimleri Üniversitesi, Türkiye
Halil Güllüoğlu
Türkiye
Dilcan Kotan Dündar
Türkiye
Zeynep Özözen Ayas
Türkiye
Hüseyin A. Şahin
Ersin Tan
Meral Topçu
Esen Saka Topçuoğlu
Cenk Akbostancı
Filiz Koç
Fatoş Sibel Ertan
Koç Üniversitesi, Türkiye
Bülent Elibol
Ayşe Nazlı Başak
Koç Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı MOVEMENT DISORDERS
Dergi ISSN 0885-3185 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili Türkçe
Basım Tarihi 07-2021
Cilt No 36
Sayı 7
Sayfalar 1676 / 1688
DOI Numarası 10.1002/mds.28518
Makale Linki http://dx.doi.org/10.1002/mds.28518
Özet
The genetic and epidemiological features of hereditary ataxias have been reported in several populations; however, Turkey is still unexplored. Due to high consanguinity, recessive ataxias are more common in Turkey than in Western European populations. To identify the prevalence and genetic structure of hereditary ataxias in the Turkish population. Our cohort consisted of 1296 index cases and 324 affected family members. Polymerase chain reaction followed by Sanger sequencing or fragment analysis were performed to screen for the trinucleotide repeat expansions in families with a dominant inheritance pattern, as well as in sporadic cases. The expansion in the frataxin (FXN) gene was tested in all autosomal recessive cases and in sporadic cases with a compatible phenotype. Whole-exome sequencing was applied to 251 probands, selected based on the family history, age of onset, and phenotype. Mutations in known ataxia genes were identified in 30% of 1296 probands. Friedreich's ataxia was found to be the most common recessive ataxia in Turkey, followed by autosomal recessive spastic ataxia of Charlevoix-Saguenay. Spinocerebellar ataxia types 2 and 1 were the most common dominant ataxias. Whole-exome sequencing was performed in 251 probands with an approximate diagnostic yield of 50%. Forty-eight novel variants were found in a plethora of genes, suggesting a high heterogeneity. Variants of unknown significance were discussed in light of clinical data. With the large sample size recruited across the country, we consider that our results provide an accurate picture of the frequency of hereditary ataxias in Turkey. © 2021 International Parkinson and Movement Disorder Society.
Anahtar Kelimeler
ataxia | genetics | heterogeneity | whole‐ | exome sequencing | Turkey