Dergi Ara >>
Yıl:2004; Cilt: 12; Sayı: Ek 2>> Özet
Psikiyatri Psikoloji Psikofarmakoloji (3P) Dergisi; 2004;12(Ek 2):5-10
Demansın genetiği
M Kerimoğlu, E Abay
Trakya Üniv. Tıp Fak. Psikiyatri AD/Edirne
Demansın önemli bir kısmını oluşturan Alzheimer tipi demansın etiyolojisinde genetik faktörlerin de rolü vardır. Bir çok gendeki mutasyonun etkisinin olduğu bilinen Alzheimer Hastalığının multifaktöryel kalıtımının göstergesi olan başlıca genler 21. kromozomdaki ß-amiloid prekürsör proteini kodlayan gen, 14. kromozomdaki presenilin 1 geni, 1. kromozomdaki presenilin 2 geni ve 19. kromozomdaki Apo E lokusudur. Bunlar Alzheimer tipi demansın genetik etiyolojisinin yarısını oluşturur. Diğer yarısından sorumlu olabileceği düşünülen 12. kromozomdaki α-2 makroglobülin proteinini kodlayan gen, düşük dansiteli lipoprotein reseptörü ile ilişkili proteini kodlayan gen (LRP-1), çok düşük dansiteli lipoprotein reseptörü ile ilişkili proteini kodlayan gen (VLDL-R), α-1 antikimotripsin geni ile birlikte 3. kromozomdaki bütiril kolin esteraz geninin K varyantı ve transferrin genidir.

Genetics of dementia
Genetic factors are possible causes for Alzheimer disease, which is the common type of dementia. The gene coding β-amyloid precursor protein in the chromosome 21 region, the presenilin 1 in the chromosome 14 region, the gene presenilin 2 in the chromosome 1 region and the locus ApoE in the chromosome 19 region show that Alzheimer’s disease has a multifactorial heredity. These perform half the genetic etiology of Alzheimer disease. Other possible genetic causes are the gene coding α-2 macroglobulin in the chromosome 12 region, LRP-1 coding LDL receptor related protein, the gene α-1 anticimotripsin, the gene butiril colin esterase in the chromosome 3 region and the transferrin.

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