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Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques.

Publication ,  Journal Article
Young, SP; Piraud, M; Goldstein, JL; Zhang, H; Rehder, C; Laforet, P; Kishnani, PS; Millington, DS; Bashir, MR; Bali, DS
Published in: Am J Med Genet C Semin Med Genet
February 15, 2012

Defining disease severity in patients with Pompe disease is important for prognosis and monitoring the response to therapies. Current approaches include qualitative and quantitative assessments of the disease burden, and clinical measures of the impact of the disease on affected systems. The aims of this manuscript were to review a noninvasive urinary glucose tetrasaccharide biomarker of glycogen storage, and to discuss advances in imaging techniques for determining the disease burden in Pompe disease. The glucose tetrasaccharide, Glcα1-6Glcα1-4Glcα1-4Glc (Glc(4) ), is a glycogen-derived limit dextrin that correlates with the extent of glycogen accumulation in skeletal muscle. As such, it is more useful than traditional biomarkers of tissue damage, such as CK and AST, for monitoring the response to enzyme replacement therapy in patients with Pompe disease. Glc(4) is also useful as an adjunctive diagnostic test for Pompe disease when performed in conjunction with acid alpha-glucosidase activity measurements. Review of clinical records of 208 patients evaluated for Pompe disease by this approach showed Glc(4) had 94% sensitivity and 84% specificity for Pompe disease. We propose Glc(4) is useful as an overall measure of disease burden, but does not provide information on the location and distribution of excess glycogen accumulation. In this manuscript we also review magnetic resonance spectroscopy and imaging techniques as alternative, noninvasive tools for quantifying glycogen and detailing changes, such as fibrofatty muscle degeneration, in specific muscle groups in Pompe disease. These techniques show promise as a means of monitoring disease progression and the response to treatment in Pompe disease. © 2012 Wiley Periodicals, Inc.

Duke Scholars

Published In

Am J Med Genet C Semin Med Genet

DOI

EISSN

1552-4876

Publication Date

February 15, 2012

Volume

160C

Issue

1

Start / End Page

50 / 58

Location

United States

Related Subject Headings

  • alpha-Glucosidases
  • Young Adult
  • Treatment Outcome
  • Sequence Analysis, DNA
  • Prognosis
  • Oligosaccharides
  • Mutation
  • Muscle, Skeletal
  • Middle Aged
  • Infant, Newborn
 

Citation

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Young, S. P., Piraud, M., Goldstein, J. L., Zhang, H., Rehder, C., Laforet, P., … Bali, D. S. (2012). Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques. Am J Med Genet C Semin Med Genet, 160C(1), 50–58. https://doi.org/10.1002/ajmg.c.31320
Young, Sarah P., Monique Piraud, Jennifer L. Goldstein, Haoyue Zhang, Catherine Rehder, Pascal Laforet, Priya S. Kishnani, David S. Millington, Mustafa R. Bashir, and Deeksha S. Bali. “Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques.Am J Med Genet C Semin Med Genet 160C, no. 1 (February 15, 2012): 50–58. https://doi.org/10.1002/ajmg.c.31320.
Young SP, Piraud M, Goldstein JL, Zhang H, Rehder C, Laforet P, et al. Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques. Am J Med Genet C Semin Med Genet. 2012 Feb 15;160C(1):50–8.
Young, Sarah P., et al. “Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques.Am J Med Genet C Semin Med Genet, vol. 160C, no. 1, Feb. 2012, pp. 50–58. Pubmed, doi:10.1002/ajmg.c.31320.
Young SP, Piraud M, Goldstein JL, Zhang H, Rehder C, Laforet P, Kishnani PS, Millington DS, Bashir MR, Bali DS. Assessing disease severity in Pompe disease: the roles of a urinary glucose tetrasaccharide biomarker and imaging techniques. Am J Med Genet C Semin Med Genet. 2012 Feb 15;160C(1):50–58.
Journal cover image

Published In

Am J Med Genet C Semin Med Genet

DOI

EISSN

1552-4876

Publication Date

February 15, 2012

Volume

160C

Issue

1

Start / End Page

50 / 58

Location

United States

Related Subject Headings

  • alpha-Glucosidases
  • Young Adult
  • Treatment Outcome
  • Sequence Analysis, DNA
  • Prognosis
  • Oligosaccharides
  • Mutation
  • Muscle, Skeletal
  • Middle Aged
  • Infant, Newborn