JIMD Podcasts

A rare disorder, a surprisingly basic biological question, and a paper that revisits what GLYCTK actually does. Jörn Oliver Sass joins the podcast to discuss D-glyceric aciduria, mitochondrial localization of D-glycerate kinase, and why getting the fundamentals right still matters.

Human D-Glycerate Kinase, Encoded by GLYCTK and Deficient in D-Glyceric Aciduria, Is a Mitochondrial Enzyme
Anne Korwitz-Reichelt, et al
https://doi.org/10.1002/jimd.70119

Dr Rory J. Tinker discusses diagnostic delay in mitochondrial disease, showing that most delays occur before clinical suspicion, despite canonical features being documented years earlier. The study highlights opportunities to shorten the diagnostic odyssey through earlier recognition and informatics approaches.

Drivers of Diagnostic Delay in Mitochondrial Disease: Missed Recognition of Canonical Features
Rory J. Tinker, et al
https://doi.org/10.1002/jmd2.70068

Dr Molly Crenshaw shares a powerful neonatal case of treatable molybdenum cofactor deficiency, where rapid biochemical diagnosis preceded molecular confirmation—but the infant deteriorated before disease-altering therapy could be started. This Shortcast highlights the critical value of urgent biochemical testing, evolving therapies, and the narrowing window for intervention in severe neonatal metabolic disease.

Treatable Neonatal Molybdenum Cofactor Deficiency: Rapid Demise Despite Rapid Biochemical Diagnosis
Molly M. Crenshaw, et al
First published: 11 January 2026 https://doi.org/10.1002/jmd2.70061

mRNA therapy is emerging as a serious therapeutic platform for liver inherited metabolic diseases. In this episode, James Nurse speaks with Sonam Gurung and Julien Baruteau about their JIMD paper exploring how mRNA can be used for protein replacement, how lipid nanoparticles help target the liver, and where this approach may complement gene therapy, transplantation and standard care. A clear look at a rapidly evolving field.

Delivering the Message: Translating mRNA Therapy for Liver Inherited Metabolic Diseases
Sonam Gurung, et al
https://doi.org/10.1002/jimd.70078

In this Shortcast, Sophie Manoy summarises a newly reported case of holocarboxylase synthetase deficiency presenting with neonatal cholestatic liver disease. This is only the second such case described and highlights a possible genotype–phenotype correlation that broadens the recognised clinical spectrum of this rare but treatable disorder.

Holocarboxylase Synthetase Deficiency: A Second Case Report With Neonatal Cholestatic Liver Disease
Sophie Manoy, et al
https://doi.org/10.1002/jmd2.70051