Assessment of the burden of outpatient clinic and MRI-guided needle muscle biopsies as reported by patients with facioscapulohumeral muscular dystrophy

Kools, Joost; Aerts, Willem; Niks, Erik H.; Mul, Karlien; Pagan, Lisa; Maurits, Jake S.F.; Thewissen, Renée; Engelen, Baziel G. van; Voermans, Nicol C.

doi:10.1016/j.nmd.2023.04.001

Cited by 3 publications

(2 citation statements)

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“…33 However, in this case study we opted not to have a muscle biopsy due to the burden it has on the patients. 34 In accordance with previous studies, ribose has been safely administered to our patient. 11,35 Previous studies investigating the use of ribose as a dietary supplement reported transient hypoglycemia and hyperuricemia.…”

Section: Discussionsupporting

confidence: 86%

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Oral ribose supplementation in dystroglycanopathy: A single case study

Thewissen,

Post,

Maas

et al. 2024

JIMD Reports

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Three forms of muscular dystrophy‐dystroglycanopathies are linked to the ribitol pathway. These include mutations in the isoprenoid synthase domain‐containing protein (ISPD), fukutin‐related protein (FKRP), and fukutin (FKTN) genes. The aforementioned enzymes are required for generation of the ribitol phosphate linkage in the O‐glycan of alpha‐dystroglycan. Mild cases of dystroglycanopathy present with slowly progressive muscle weakness, while in severe cases the eyes and brain are also involved. Previous research showed that ribose increased the intracellular concentrations of cytidine diphosphate‐ribitol (CDP‐ribitol) and had a therapeutic effect. Here, we report the safety and effects of oral ribose supplementation during 6 months in a patient with limb girdle muscular dystrophy type 2I (LGMD2I) due to a homozygous FKRP mutation. Ribose was well tolerated in doses of 9 g or 18 g/day. Supplementation with 18 g of ribose resulted in a decrease of creatine kinase levels of 70%. Moreover, metabolomics showed a significant increase in CDP‐ribitol levels with 18 g of ribose supplementation (p < 0.001). Although objective improvement in clinical and patient‐reported outcome measures was not observed, the patient reported subjective improvement of muscle strength, fatigue, and pain. This case study indicates that ribose supplementation in patients with dystroglycanopathy is safe and highlights the importance for future studies regarding its potential effects.

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