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J Pediatr. 1986 Jul;109(1):55-9.

Inflammatory bowel disease in glycogen storage disease type Ib.


We have observed the development of chronic inflammatory bowel disease, indistinguishable from Crohn disease, in two boys with glycogen storage disease type Ib (GSD-Ib). A chance association of these diseases in two patients is unlikely. Studies of their neutrophils showed severe chronic neutropenia (mean absolute granulocyte counts of less than 500 cells/microliter) and markedly deficient chemotactic response (less than 5% of reference values) in the patients with GSD-Ib and normal neutrophil values in four patients with glycogen storage disease type Ia (GSD-Ia). Monocyte counts and responses to chemotactic stimulation were normal in both GSD-Ia and GSD-Ib. Chronic inflammatory bowel disease appears to be associated with GSD-Ib, and neutrophil abnormalities may be involved in the pathogenesis of the bowel inflammation.

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