Adult polyglucosan body disease: Natural history and key magnetic resonance imaging findings

Fanny Mochel*, Raphael Schiffmann, Marjan E. Steenweg, Hasan O. Akman, Mary Wallace, Frédéric Sedel, Pascal Laforêt, Richard Levy, J. Michael Powers, Sophie Demeret, Thierry Maisonobe, Roseline Froissart, Bruno Barcelos Da Nobrega, Brent L. Fogel, Marvin R. Natowicz, Catherine Lubetzki, Alexandra Durr, Alexis Brice, Hanna Rosenmann, Varda BarashOr Kakhlon, J. Moshe Gomori, Marjo S. Van Der Knaap, Alexander Lossos

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

115 Scopus citations

Abstract

Objective: Adult polyglucosan body disease (APBD) is an autosomal recessive leukodystrophy characterized by neurogenic bladder, progressive spastic gait, and peripheral neuropathy. Polyglucosan bodies accumulate in the central and peripheral nervous systems and are often associated with glycogen branching enzyme (GBE) deficiency. To improve clinical diagnosis and enable future evaluation of therapeutic strategies, we conducted a multinational study of the natural history and imaging features of APBD. Methods: We gathered clinical, biochemical, and molecular findings in 50 APBD patients with GBE deficiency from Israel, the United States, France, and the Netherlands. Brain and spine magnetic resonance images were reviewed in 44 patients. Results: The most common clinical findings were neurogenic bladder (100%), spastic paraplegia with vibration loss (90%), and axonal neuropathy (90%). The median age was 51 years for the onset of neurogenic bladder symptoms, 63 years for wheelchair dependence, and 70 years for death. As the disease progressed, mild cognitive decline may have affected up to half of the patients. Neuroimaging showed hyperintense white matter abnormalities on T2 and fluid attenuated inversion recovery sequences predominantly in the periventricular regions, the posterior limb of the internal capsule, the external capsule, and the pyramidal tracts and medial lemniscus of the pons and medulla. Atrophy of the medulla and spine was universal. p.Y329S was the most common GBE1 mutation, present as a single heterozygous (28%) or homozygous (48%) mutation. Interpretation: APBD with GBE deficiency, with occasional exceptions, is a clinically homogenous disorder that should be suspected in patients with adult onset leukodystrophy or spastic paraplegia with early onset of urinary symptoms and spinal atrophy. ANN NEUROL 2012;72:433-441.

Original languageAmerican English
Pages (from-to)433-441
Number of pages9
JournalAnnals of Neurology
Volume72
Issue number3
DOIs
StatePublished - Sep 2012
Externally publishedYes

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