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Chronic granulamatous disease: Two decades of experience from a paediatric immunology unit in a country with high rate of consangineous marriages.

Abstract：

:Chronic granulomatous disease (CGD) is a primary immunodeficiency characterized by susceptibility to bacterial and fungal infections resulting from the inadequacy of phagocytic leucocytes to produce reactive oxygen radicals. CGD is a genetically heterogeneous disease with an X-linked recessive (XR-CGD) form caused by mutations in the CYBB (OMIM #300481) gene encoding the gp91(phox) protein, and an autosomal recessive (AR-CGD) form caused by mutations in the CYBA (OMIM #608508), NCF1 (OMIM #608512), NCF2 (OMIM #608515) and NCF4 (OMIM #601488) genes encoding p22(phox), p47(phox), p67(phox) and p40(phox), respectively. The genetic mutation of one of the cytosolic p47phox/p67phox proteins and membrane-bound gp91phox/p22phox proteins, which constitutes the NADPH oxidase enzyme complex, causes the disease. In this study, we evaluated the clinical, laboratory and genetic findings and the prognostic effects of molecular inheritance of our 24 CGD cases (14 XR, 10 autosomal recessive-AR). Consanguinity (three XR and all AR cases) showed statistically significant relationship with the type of hereditary inheritance (P < 0.001). 83% patients had an infection since early infancy. The mean age of initiation of symptoms was earlier in XR cases, and 78% patients had respiratory tract infections. Bone marrow transplantation was performed in five XR cases (two ex) and four AR (one ex) cases. Three of nine XR and two of six AR cases deceased on medical follow-up. In countries especially with high consanguinity rates, the early diagnosis for appropriate prophylactic treatment of CGD is quietly important to avoid from recurrent severe infections, early death and fatal complications of late transplantation.

journal_name

Scand J Immunol

journal_title

Scandinavian journal of immunology

authors

Kutukculer N,Aykut A,Karaca NE,Durmaz A,Aksu G,Genel F,Pariltay E,Cogulu Ö,Azarsız E

doi

10.1111/sji.12737

subject

Has Abstract

pub_date

2019-02-01 00:00:00

pages

e12737

issue

eissn

0300-9475

issn

1365-3083

journal_volume

pub_type

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Chronic granulamatous disease: Two decades of experience from a paediatric immunology unit in a country with high rate of consangineous marriages.