Journals / Retina-Vitreus / 2019 / Cilt: 28 - Sayı: 2

Eksudatif Yaşa Bağlı Makula Dejenerasyonu Olan Türk Hastalarda HTRA1 ve CFH Gen Polimorfi zmleri

HTRA1 and CFH Gene Polymorphisms in Turkish Patients with Exudative Age Related Macular Degeneration

Pages
160–164
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Sonuç: Bu çalışmada Türk hastalarda, CFH geninin rs1061170 (H402Y) ve rs2274700 (A473A) polimorfi zmlerinin risk alellerinin heterozigot varyasyonlarının, normal alellerin homozigot varyasyonlarına kıyasla YBMD riski ile anlamlı ilişkisi saptanmıştır.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Amaç: Eksudatif yaşa bağlı makula dejenerasyonu (YBMD) olan Türk hastalarda, HTRA1 (HTRA serine peptidase1) ve CFH (complement factor H) genlerinin incelenmesi.
📊
Key Findings & Data:Gereç ve Yöntem: Bu çalışmaya 39 eksudatif YBMD hastası ve kontrol grubu olarak ekzom dizileme datası olan 250 sağlıklı birey dahil edildi.
💡
Conclusion & Impact:Sonuç: Bu çalışmada Türk hastalarda, CFH geninin rs1061170 (H402Y) ve rs2274700 (A473A) polimorfi zmlerinin risk alellerinin heterozigot varyasyonlarının, normal alellerin homozigot varyasyonlarına kıyasla YBMD riski ile anlamlı ilişkisi saptanmıştır.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Amaç: Eksudatif yaşa bağlı makula dejenerasyonu (YBMD) olan Türk hastalarda, HTRA1 (HTRA serine peptidase1) ve CFH (complement factor H) genlerinin incelenmesi. Gereç ve Yöntem: Bu çalışmaya 39 eksudatif YBMD hastası ve kontrol grubu olarak ekzom dizileme datası olan 250 sağlıklı birey dahil edildi. Senil makula dejenerasyonu açısından bilinen çevresel ve sistemik risk faktörlerinin olduğu olgular çalışmaya alınmadı. Genomik DNA periferik kandan izole edildi ve yeni nesil dizileme tekniği ile analiz edildi. HTRA1’in tüm kodlayıcı eksonları ve CFH’nin seçilmiş eksonları (3, 9 ve 10) incelendi. Bulgular: Çalışma grubunda CFH’nin sekans analizi ile 2 genetik varyasyon bulundu. Sonuçlarımıza göre bu varyasyonlar rs1061170 (H402Y) ve rs2274700 (A473A) polimorfi zmleri idi. Buna ek olarak, HTRA1 geninin 1. eksonunda özdeş olmayan aminoasid değişimi olan rs369149111 (A20V) polimorfi zmi saptandı. Bu özdeş olmayan değişiklik tek bir nükleotid polimorfi zmi idi ve PolyPhen and SIFT analizlerinde bir patolojik duruma sebep olmuyordu. Sonuç: Bu çalışmada Türk hastalarda, CFH geninin rs1061170 (H402Y) ve rs2274700 (A473A) polimorfi zmlerinin risk alellerinin heterozigot varyasyonlarının, normal alellerin homozigot varyasyonlarına kıyasla YBMD riski ile anlamlı ilişkisi saptanmıştır.

Özet

Purpose: To investigate the genes HTRA serine peptidase1 (HTRA1) and complement factor H (CFH) in Turkish patients with exudative age-related macular degeneration (AMD). Materials and Methods: This study included 39 exudative AMD patients and 250 healthy individuals with exome sequencing data as a control group. Patients with known environmental and systemic risk factors for AMD were excluded. Genomic DNA was isolated from peripheral blood and analyzed using next-generation sequencing. All coding exons of the HTRA1 gene and selected exons (3, 9 and 10) of the CFH gene were analyzed. Results: Sequence analysis of the CFH gene identifi ed two genetic variations in the study group. Our results identifi ed these variations as polymorphisms rs1061170 (H402Y) and rs2274700 (A473A). Additionally, rs369149111 (A20V) polymorphism, in which a non-synonymous amino acid exchange in exon 1 of the HTRA1 gene was detected. This non-synonymous exchange was a single nucleotide polymorphism and did not lead to a pathological condition based on PolyPhen and SIFT analyses. Conclusion: The study showed that heterozygous variations of the risk alleles of rs1061170 (H402Y) and rs2274700 (A473A) polymorphisms of the CFH gene were associated with AMD risk, compared to the homozygous variant of the normal allele in Turkish patients.

🔖

Cite This Article

ERÇALIK, N. Y., BARDAK, H., GÜNAY, M., BARDAK, Y. K., ÖZBAŞ, H., BAĞCI, Ö. (2019). Eksudatif Yaşa Bağlı Makula Dejenerasyonu Olan Türk Hastalarda HTRA1 ve CFH Gen Polimorfi zmleri. Retina-Vitreus, Cilt: 28 - Sayı: 2, 160–164. https://ajindex.com/articles/307588

References (16)

  1. Lana TP, da Silva Costa SM, Ananina G, et al. Association of HTRA1 rs11200638 with age-related macular degeneration (AMD) in Brazilian patients. Ophthalmic Genet 2018;39:46-50
  2. Gopinath B, Liew G, Burlutsky G, et al. Age- related macular degeneration and 5-year incidence of impaired activities of daily living. Maturitas 2014;77:263-6
  3. Yu Y, Bhangale TR, Fagerness J, et al. Common variants near FRK/COL10A1 and VEGFA are associated with advanced agerelated macular degeneration. Hum Mol Genet 2011;20:3699-709
  4. Liu K, Chen LJ, Lai TY, et al. Genes in the high-density lipoprotein metabolic pathway in age-related macular degeneration and polypoidal choroidal vasculopathy. Ophthalmology 2014;121:911- 6
  5. Dewan A, Liu M, Hartman S, et al. HTRA1 promoter polymorphism in wet age-related macular degeneration. Science 2006;314:989- 92
  6. Klein RJ, Zeiss C, Chew EY, et al. Complement factor H polymorphism in age-related macular degeneration. Science 2005;308:385-9
  7. Haines JL, Hauser MA, Schmidt S, et al. Complement factor H variant increases the risk of age-related macular degeneration. Science 2005;308:419-21
  8. Edwards AO, Ritter R 3rd, Abel KJ, et al. Complement factor H polymorphism and age-related macular degeneration. Science 2005;308:421-4
  9. Donoso LA, Kim D, Frost A, et al. The role of infl ammation in the pathogenesis of age-related macular degeneration. Surv Ophthalmol 2006;51:137-52
  10. Oka C, Tsujimoto R, Kajikawa M, et al. HtrA1 serine protease inhibits signaling mediated by Tgfbeta family proteins. Development 2004;131:1041-53
  11. Sobrin L, Reynolds R, Yu Y, et al. ARMS2/HTRA1 locus can confer differential susceptibility to the advanced subtypes of agerelated macular degeneration. Am J Ophthalmol 2011;51:345-52
  12. Hammond CJ, Webster AR, Snieder H, et al. Genetic infl uence on early age-related maculopathy: a twin study. Ophthalmology. 2002;109:730-6
  13. Swaroop A, Branham KEH, Chen W, et al. Genetic susceptibility to age-related macular degeneration: a paradigm for dissecting complex disease traits. Hum Mol Genet 2007;16:174-82
  14. Zareparsi S, Branham KEH, Li M. Strong association of the Y402H variant in complement factor H at 1q32 with susceptibility to agerelated macular degeneration. Am J Hum Genet 2005;77:149-53
  15. Fritsche LG, Loenhardt T, Janssen A. Age-related macular degeneration is associated with an unstable ARMS2 (LOC387715) mRNA. Nat Genet 2008;40:892-6
  16. Duvvari MR, van de Ven JP, Geerlings MJ, et al. Whole E