Journals / Astım Allerji İmmünoloji / 2016 / Cilt: 14 - Sayı: 1

Severe Combined Immunodeficiencies Resulting from Impaired Purine Metabolism: Single Center Experience

Pürin Metabolizması Bozukluklarına Bağlı Ortaya Çıkan Ağır Kombine İmmün Yetmezlikler: Tek Merkez Deneyimi

Pages
18–23
DOI
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AI Summary & Key Takeaways

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

Conclusion: With this study, it was highlighted once again that the deficiency of purine salvage enzymes is important subgroup of SCIDs in Turkey.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Deficiency of the purine salvage enzymes adenosine deaminase (ADA) or purine nucleoside phosphorylase (PNP) leads to severe combined immune deficiency (SCID).
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Key Findings & Data:Materials and Methods: Here we describe the clinical course and treatment of one PNP deficient and 4 ADA deficient patients who were diagnosed in infancy.
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Conclusion & Impact:Conclusion: With this study, it was highlighted once again that the deficiency of purine salvage enzymes is important subgroup of SCIDs in Turkey.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Deficiency of the purine salvage enzymes adenosine deaminase (ADA) or purine nucleoside phosphorylase (PNP) leads to severe combined immune deficiency (SCID). Since these enzymes are found in all cells, other tissues and organs are also affected, though more variably. Materials and Methods: Here we describe the clinical course and treatment of one PNP deficient and 4 ADA deficient patients who were diagnosed in infancy. All had very low T-cell count and immunoglobulins, consistent with T-B-NK- SCID. Results: Hematopoietic stem cell transplantation (HSCT) was performed in two patients with ADA deficiency. The ADA deficient patient who was treated with haploidentical HSCT (haplo-HSCT) died due to complications of HSCT. One of the ADA deficient patients died before HSCT and another ADA deficient patient is currently being treated with enzyme replacement treatment (ERT). The PNP deficient patient was treated with unrelated cord blood HSCT. Conclusion: With this study, it was highlighted once again that the deficiency of purine salvage enzymes is important subgroup of SCIDs in Turkey.

Özet

Giriş: Purin salvage yolağında bulunan adenozin deaminaz (ADA) ve purin nükleozid fosforilaz (PNP) enzim eksikliklerinde ağır kombine immün yetmezlik (AKİY) tabloları ortaya çıkabilmektedir. Bu enzimler tüm dokularda bulunur ve eksikliklerinde ortaya çıkan AKİY durumlarında farklı organlarda değişik derecelerde doku hasarları görülebilmektedir. Gereç ve Yöntem: Makalede biri PNP ve dördü ADA eksikliğine bağlı süt çocukluğu döneminde tanı almış AKİY olgularımızın klinik seyir ve tedavileri sunulmuştur. Hastaların tamamı T-B-NK- AKİY fenotipi gösteriyordu ve hepsinin immünoglobulin değerleri düşüktü. Bulgular: ADA eksiliğine bağlı AKİY olgularından ikisine kemik iliği transplantasyonu (KİT) yapıldı. Birine tam uyumlu kardeşten diğerine ise anneden haplo nakil gerçekleştirildi. Haplo nakil olan hasta KİT komplikasyonuna bağlı olarak, üçüncü ADA eksikliği hastası ise nakil beklerken kaybedildi. Bir diğer ADA eksikliği olan hasta halen enzim replasman tedavisi almaktadır. PNP eksikliği olan hasta ise yurtdışında kordon kanı transplantasyonu oldu. Sonuç: Bu çalışma ile Türkiye'de pürin salvage yolak enzim eksikliklerine bağlı olguların AKİY'ler içinde önemli bir grubu oluşturduğu bir kez daha vurgulanmıştır.

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Cite This Article

PATIROĞLU, T., AKAR, H. H., GUNGOR, H. E., ÜNAL, E., SANTISTEBAN, I., HERSHFIELD, M., KARAKÜKCÜ, M. (2016). Severe Combined Immunodeficiencies Resulting from Impaired Purine Metabolism: Single Center Experience. Astım Allerji İmmünoloji, Cilt: 14 - Sayı: 1, 18–23. https://ajindex.com/articles/148285

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