CLINICAL MOLECULAR DIAGNOSTICS OF HEREDITARY ATTAXIAS
Abstract
Aim. Learn clinical and molecular diagnostics of cerebellar ataxias.
Material and methods. In the course of expeditionary work and medical genetic monitoring, carried at the Department of Neurology and Fundamentals of Medical Genetics of ATSMU with the participation of neurogenetic (from London), studies based on a clinical examination and confirmation of the diagnosis at the molecular genetic level were conducted. It allowed taking into account the pronounced genetic heterogeneity of hereditary diseases.
Research results. Of the 12 families with various forms of cerebellar ataxia, the greatest percentage fell on the Ataxia of Friedreich, Pierre-Marie, and less often Vit E - deficient ataxia. In 37.5% of cases, cerebellar ataxia was a symptom of spastic paraplegia of Charlevoix-Saguenay, Wilson Konovalov’s disease and adrenoleukodystrophy. The phenotypic manifestation of Friedreich and Pierre-Marie’s cerebellar ataxia was genetically confirmed.
Conclusions. 1. These data illustrate the importance of clinical screening of patients with suspected hereditary ataxia.
2. Molecular, biochemical and pathomorphological analyzes complement each other, allowing to set the correct nosological diagnosis.
3. New knowledge about the pathogenesis of hereditary ataxias allows some patients to carry out the quite effective supportive pathogenetic treatment.
About the Authors
M. T. GanievаTajikistan
Ganieva Manija Timurovna - Candidate of Medical Sciences, Head of the Department of Neurology and Bases of Medical Genetics
Sh. R. Raboeva
Tajikistan
Department of neurology and bases of medical genetics
M. B. Isaeva
Tajikistan
Department of neurology and bases of medical genetics
M. O. Isrofilov
Tajikistan
Department of neurology and bases of medical genetics
D. P. Zuurbekova
Tajikistan
Department of neurology and bases of medical genetics
N. Asilova
Tajikistan
Department of neurology and bases of medical genetics
References
1. Ganieva M. T. Chastota i struktura nasledstvennykh zabolevaniy nervnoy sistemy v rayone Tursunzade [Frequency and structure of hereditary diseases of the nervous system in the region of Tursunzade]. Vestnik poslediplomnogo obrazovaniya v sfere zdravookhraneniya - Herald of postgraduate education in healthcare sphere, 2019, No. 1, pp. 5-8.
2. Klyushnikov S.A. Algoritm diagnostiki nasledstvennykh ataksiy. Nervnye bolezni tom 1 [Diagnostic algorithm for hereditary ataxias. Nervous Diseases Volume 1]. Moscow, 2012. 613 p.
3. Illarioshkin S.N. Nasledstvennye ataksii i paraplegii [Hereditary ataxia and paraplegia]. Moscow, MEDpress-inform Publ., 2006. 416 p.
4. Rudenskaya G. E. Nasledstvennye neyrometabolicheskie bolezni yunosheskogo i vzroslogo vozrasta [Hereditary neurometabolic diseases of the adolescents and adults]. Moscow, GEOTAR-Media Publ., 2018. 388 p.
5. Rakhmonov R. A. Epidemiologiya nasledstvennykh zabolevaniy nervnoy sistemy v Respublike Tadzhikistan (na primere Gissarskogo rayona) [Epidemiology of hereditary diseases of the nervous system in the Republic of Tajikistan (by the example of Gissar district))]. Annaly klinicheskoy i eksperimentalnoy nevrologii - Annals of Clinical and Experimental Neurology, No. 4, 2014, pp. 15-18.
6. Federalnoe klinicheskie rekomendatsii po diagnostike i lecheniyu KH-stseplennoy adrenoleykodistrofii [Federal clinical guidelines for the diagnosis and treatment of X-linked adrenoleukodystrophy]. Moscow, 2013. 20 p.
7. Cellini E. A family with spinocerebellar ataxia type 8 expansion and vitamin E deficiency ataxia. Archives of neurology, 2002, No. 59, pp. 1952-1953.
8. Bouhlal Y. Autosomal recessive ataxia caused by three distinct gene defects in a single consanguineous family. Journal of Neurogenetics, 2008, No. 22, pp. 139-148.
9. El Euch-Fayache G. Molecular, clinical and peripheral neuropathy study of Tunisian patients with ataxia with vitamin E deficiency. Brain, 2014, No. 137.
10. Pilliod J. New practical definitions for the diagnosis of autosomal recessive spastic ataxia of Charlevoix–Saguenay. Annals of Neurology, 2015, Vol. 78, pp. 871–886.
11. Paucar M. Expanding the ataxia with oculomotor apraxia type 4 phenotype. Neurology Genetics, 2016, Vol. 2, No. 11, pp. 49.
Review
For citations:
Ganievа M.T., Raboeva Sh.R., Isaeva M.B., Isrofilov M.O., Zuurbekova D.P., Asilova N. CLINICAL MOLECULAR DIAGNOSTICS OF HEREDITARY ATTAXIAS. Health care of Tajikistan. 2021;(1):31-35. (In Russ.)