Phosphomannose isomerase (PMI) deficiency is the cause of a new type of carbohydrate-deficient glycoprotein syndrome (CDGS). The disorder is caused by mutations in the PMI1 gene. The clinical phenotype is characterized by protein-losing enteropathy, while neurological manifestations prevailing in other types of CDGS are absent. Using standard diagnostic procedures, the disorder is indistinguishable from CDGS type Ia (phosphomannomutase deficiency). Daily oral mannose administration is a successful therapy for this new type of CDG syndrome classified as CDGS type Ib.
R Niehues, M Hasilik, G Alton, C Körner, M Schiebe-Sukumar, H G Koch, K P Zimmer, R Wu, E Harms, K Reiter, K von Figura, H H Freeze, H K Harms, T Marquardt
Title and authors | Publication | Year |
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Mutations in GMPPA Cause a Glycosylation Disorder Characterized by Intellectual Disability and Autonomic Dysfunction
K Koehler, M Malik, S Mahmood, S Gießelmann, C Beetz, JC Hennings, AK Huebner, A Grahn, J Reunert, G Nürnberg, H Thiele, J Altmüller, P Nürnberg, R Mumtaz, D Babovic-Vuksanovic, L Basel-Vanagaite, G Borck, J Brämswig, R Mühlenberg, P Sarda, A Sikiric, K Anyane-Yeboa, A Zeharia, A Ahmad, C Coubes, Y Wada, T Marquardt, D Vanderschaeghe, E Van Schaftingen, I Kurth, A Huebner, CA Hübner |
The American Journal of Human Genetics | 2013 |
Understanding human glycosylation disorders: biochemistry leads the charge
HH Freeze |
The Journal of biological chemistry | 2013 |
Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
AN Hegde |
Reference Module in Chemistry, Molecular Sciences and Chemical Engineering | 2013 |
rhIGF-1 Therapy for Growth Failure and IGF-1 Deficiency in Congenital Disorder of Glycosylation Ia (PMM2 Deficiency)
BS Miller, MM Duffy, OY Addo, K Sarafoglou |
Journal of Investigative Medicine High Impact Case Reports | 2013 |
Physician's Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases
N Blau, M Duran, KM Gibson, CD Vici |
2013 |