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A Clinical and Molecular Genetic Study of 50 Families With Autosomal Recessive Parkinsonism Revealed Known and Novel Gene Mutations Publisher Pubmed



Taghavi S1 ; Chaouni R2 ; Tafakhori A3 ; Azcona LJ2, 4 ; Firouzabadi SG5 ; Omrani MD1 ; Jamshidi J6 ; Emamalizadeh B7 ; Shahidi GA8 ; Ahmadi M3 ; Habibi SAH8 ; Ahmadifard A1 ; Fazeli A1 ; Motallebi M1 Show All Authors
Authors
  1. Taghavi S1
  2. Chaouni R2
  3. Tafakhori A3
  4. Azcona LJ2, 4
  5. Firouzabadi SG5
  6. Omrani MD1
  7. Jamshidi J6
  8. Emamalizadeh B7
  9. Shahidi GA8
  10. Ahmadi M3
  11. Habibi SAH8
  12. Ahmadifard A1
  13. Fazeli A1
  14. Motallebi M1
  15. Petramfar P9
  16. Askarpour S1
  17. Askarpour S1
  18. Shahmohammadibeni HA10
  19. Shahmohammadibeni N11
  20. Eftekhari H11
  21. Shafiei Zarneh AE1
  22. Mohammadihosseinabad S1
  23. Khorrami M1
  24. Najmi S12
  25. Chitsaz A13
  26. Shokraeian P14
  27. Ehsanbakhsh H1
  28. Rezaeidian J1
  29. Ebrahimi Rad R15
  30. Madadi F1
  31. Andarva M1
  32. Alehabib E1
  33. Atakhorrami M1
  34. Mortazavi SE1
  35. Azimzadeh Z1
  36. Bayat M1
  37. Besharati AM1
  38. Haratighavi MA1
  39. Omidvari S1
  40. Dehghanitafti Z1
  41. Mohammadi F1
  42. Mohammad Hossein Pour B1
  43. Noorollahi Moghaddam H16
  44. Esmaili Shandiz E17
  45. Habibi A8
  46. Taherianesfahani Z1
  47. Darvish H1
  48. Paisanruiz C2, 18, 19
Show Affiliations
Authors Affiliations
  1. 1. Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, 10029, NY, United States
  3. 3. Department of Neurology, School of Medicine, Imam Khomeini Hospital and Iranian Center of Neurological Research, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Neurosciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, 10029, NY, United States
  5. 5. Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
  6. 6. Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
  7. 7. Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
  8. 8. Movement Disorders Clinic, Hazrat Rassol Hospital, Iran University of Medical Sciences, Tehran, Iran
  9. 9. Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran
  10. 10. Neurology Department, Jondi-Shapoor University of Medical Sciences, Ahwaz, Iran
  11. 11. Cellular and Molecular Biology Research Center, Babol University of Medical Sciences, Babol, Iran
  12. 12. Department of Neurology, Tabriz University of Medical Science, Tabriz, Iran
  13. 13. Isfahan University of Medical Sciences, Isfahan, Iran
  14. 14. Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
  15. 15. Vali Abad Branch, Islamic Azad University, Tonekabon, Iran
  16. 16. Toos General Hospital, Tehran, Iran
  17. 17. Neurology Department, Ganjavian Hospital, Dezful University of Medical Sciences, Dezful, Iran
  18. 18. Departments of Psychiatry, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, 10029, NY, United States
  19. 19. Friedman Brain and Mindich Child Health and Development Institutes, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, 10029, NY, United States

Source: Molecular Neurobiology Published:2018


Abstract

In this study, the role of known Parkinson’s disease (PD) genes was examined in families with autosomal recessive (AR) parkinsonism to assist with the differential diagnosis of PD. Some families without mutations in known genes were also subject to whole genome sequencing with the objective to identify novel parkinsonism-related genes. Families were selected from 4000 clinical files of patients with PD or parkinsonism. AR inheritance pattern, consanguinity, and a minimum of two affected individuals per family were used as inclusion criteria. For disease gene/mutation identification, multiplex ligation-dependent probe amplification, quantitative PCR, linkage, and Sanger and whole genome sequencing assays were carried out. A total of 116 patients (50 families) were examined. Fifty-four patients (46.55%; 22 families) were found to carry pathogenic mutations in known genes while a novel gene, not previously associated with parkinsonism, was found mutated in a single family (2 patients). Pathogenic mutations, including missense, nonsense, frameshift, and exon rearrangements, were found in Parkin, PINK1, DJ-1, SYNJ1, and VAC14 genes. In conclusion, variable phenotypic expressivity was seen across all families. © 2017, Springer Science+Business Media New York.
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