2026 · JACC Case Reports
Two-sibling case report describing different cardiac courses despite the same homozygous FKRP variant.
case report CardiacPhenotype Clinicians
Takeaway: The siblings had different cardiac phenotypes and imaging courses. A two-person family report cannot set surveillance intervals or change public cardiac guidance without specialist review.
2026 · Annals of Clinical and Translational Neurology
Longitudinal natural-history analysis relating timed motor tests to loss of functional ambulation in 97 people with LGMDR9.
cohort Natural HistoryTrial Readiness Families
Takeaway: Timed walking and stair measures predicted a study-defined ambulation outcome at group level, but the model is not a guaranteed timeline or a stand-alone forecast for an individual.
2026 · Neurology Genetics
Prospective 12-month observational study of muscle-biopsy glycosylated alpha-dystroglycan measurements in genetically confirmed LGMD2I/R9.
cohort Trial ReadinessMonitoring Clinicians
Takeaway: Glycosylated alpha-dystroglycan was lower than the selected control and stable over 6 to 12 months in the biopsy cohort, supporting biomarker research but not proving treatment benefit or routine clinical use.
2025 · Scientific Reports
Preclinical metabolomics comparison of ribitol and ribose exposure in an FKRP-mutant mouse model.
other Therapy DevelopmentTrial Readiness Clinicians
Takeaway: Ribitol and ribose produced different muscle-metabolite profiles in FKRP-mutant mice. The study raises research questions and does not establish human safety, dosing, or clinical benefit.
2024 · JIMD Reports
A six-month oral D-ribose study reported in one adult with FKRP-related LGMD2I.
case report Therapy DevelopmentMonitoring Families
Takeaway: This is a single-adult case without a control group. It establishes no pediatric dose or pediatric safety, and the paper reported no clear objective improvement in clinical or patient-reported outcome measures.
2023 · Neuromuscular Disorders
Norwegian observational cohort describing genotype distribution and respiratory, cardiac, and mobility outcomes.
cohort Natural HistoryRespiratory Families
Takeaway: Respiratory support sometimes began before wheelchair dependency; mobility alone did not describe all disease burden in this cohort.
2021 · Trends in Cell Biology
Review article mapping FKRP biology, disease mechanisms, model systems, and the treatment approaches that were emerging by 2021.
review Therapy DevelopmentGenetics General
Takeaway: This 2021 review connects FKRP biology with experimental small-molecule, gene, and cell approaches; it is background reading, not a current treatment guide.
2017 · Journal of Child Neurology
Retrospective analysis relating self-reported middle-school activity to later motor and respiratory measures in 41 people with FKRP variants.
cohort RehabilitationNatural History Families
Takeaway: The study found no association between recalled middle-school activity level and selected later motor or respiratory measures, but it was not a prospective exercise-safety trial and cannot prescribe activity.
2017 · Neurology
Natural-history and survey study describing acute, transient weakness around febrile illness across several dystroglycanopathy genes.
cohort PhenotypeCongenital Disease Families
Takeaway: Acute illness-associated weakness was reported more often in the surveyed dystroglycanopathy group, especially in young children, but this mixed-gene retrospective evidence cannot define an individual emergency pathway or treatment.
2013 · Pediatric Neurology
A congenital FKRP case report describing severe eye and brain involvement alongside a comparison with published cases.
case report Congenital DiseaseDiagnosis Families
Takeaway: This case illustrates a severe congenital FKRP presentation; it does not describe the expected course of later-onset LGMDR9.
2011 · Neurology
Retrospective report of self-reported myoglobinuria and muscle pain in a 26-person FKRP-related LGMD2I cohort.
cohort PhenotypeDiagnosis Families
Takeaway: Myoglobinuria and exertion-associated muscle pain were reported in this small cohort, but the retrospective design does not provide a triage rule, prevention protocol, or prediction for an individual.
2007 · BMC Musculoskeletal Disorders
A genetic screening study identifying FKRP-related LGMD in two North American referral cohorts.
cohort GeneticsDiagnosis Clinicians
Takeaway: Seven FKRP diagnoses among 87 people evaluated for LGMD illustrate the value of molecular confirmation when clinical presentations overlap.
2006 · Journal of Neurology
A small FKRP cohort comparing cardiovascular magnetic resonance with electrocardiography and echocardiography.
cohort CardiacMonitoring Clinicians
Takeaway: In this small cohort, cardiac magnetic resonance detected more abnormalities than conventional testing, including in patients with little skeletal-muscle involvement.
2003 · Neurology
An early FKRP cohort describing respiratory and cardiac involvement. A July 2003 correction is recorded, but its contents remain unverified here.
cohort RespiratoryPhenotype Families
Takeaway: The public abstract reports cardiopulmonary complications sometimes out of proportion to skeletal weakness. Check the publisher's correction before relying on detailed results.
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