Dr Hannerieke van den Hout of Erasmus MC joins the podcast to discuss observations from two decades of early treated infantile onset Pompe disease and the evolving nature of the neurological phenotype.Long term survival in patients with classic infantile Pompe disease reveals a spectrum with progressive brain abnormalities and changes in cognitive …

Callie Ferguson discusses her group's care for a young woman with FBPase deficiency during pregnancy and beyond. Metabolic management of a successful pregnancy and postpartum complications in fructose-1,6-bisphosphatase deficiencyCallie Ferguson, Anita Madison, Ada Hamosh, Celide Koernerhttps://doi.org/10.1002/jmd2.12453…

Professor Shamima Rahman and Dr Nandaki Keshavan take us on a whistle stop tour of the different approaches taken to gene therapy in mitochondrial disease and why some may work better than others. Gene therapy for mitochondrial disordersNandaki Keshavan, Michal Minczuk, Carlo Viscomi, Shamima Rahmanhttps://doi.org/10.1002/jimd.12699…

Olivia Garrett, Jared Druss, Estela Rubio-Gozalbo, Gerard Berry, and Judith Fridovich-Keil discuss outcomes in classic galactosemia drawn from patient surveys of 92 adults.Health and well-being of maturing adults with classic galactosemiaOlivia S. Garrett, Jared J. Druss, E. Naomi Vos, Yu-Ting Debbie Fu, Stephanie Lucia, Patricia E. Greenstein, Ann…

Professor Carlos Ferreira joins Eva Morava to discuss the metabolic cardiovascular disease and explain why cardiac involvement is common in IMDs and when an underlying metabolic should be suspected in a cardiac presentation.Read the referenced paper here: https://doi.org/10.1016/j.ymgme.2020.12.290Find IMDs associated with epilepsies at: http://www…

Originally presented at the SSIEM 2023 Annual Symposium, Dr Ozlem Goker-Alpan discusses neuronopathic gaucher disease, regional variations and hopes for new treatments.Neuronopathic Gaucher disease: Rare in the West, common in the EastOzlem Goker-Alpan, Margarita M. Ivanovahttps://doi.org/10.1002/jimd.12749…

Dr Melanie Gillingham, PhD, RD, joins the podcast to discuss eye disease in LCHADD and changes in outcomes following early or late diagnosis. Early diagnosis and treatment by newborn screening (NBS) or family history is associated with improved visual outcomes for long-chain 3-hydroxyacylCoA dehydrogenase deficiency (LCHADD) chorioretinopathyMelani…

Professor Corrado Angelini joins Eva Morava to discuss the footprints of metabolic myopathies, why they are so common and when they should be suspected. Read the referenced paper here: https://doi.org/10.1016/j.ymgme.2022.09.004Find IMDs associated with epilepsies at: http://www.iembase.org/gamuts/store/docs/Footprints_myopathies_table%20151022.pdf…

Concluding our limited series related to the SSIEM 2024 meeting in Porto. We reflect on Day 3 and modelling disease through organoids, nursing in IMD investigation of hypoglycaemia. We also hear more about dolichol metabolism and George Komrower.Oleh Journal of Inherited Metabolic Disease

Thoughts on the second day of SSIEM 2024 annual symposium and a little preview of day 3.Oleh Journal of Inherited Metabolic Disease

A look back on the first day of the SSIEM 2024 Annual Symposium and a preview of Day 2 with Rodrigo Starosta co-hosting.Oleh Journal of Inherited Metabolic Disease

The first of a series of podcasts accompanying the 2024 annual symposium of the SSIEM 2024. In this episode Dr Dulce Quelhas reflects on her plans for the meeting and just how long it has been gestating. Stay tuned for daily content.Oleh Journal of Inherited Metabolic Disease

Professor Judy Fridovich-Keil returns to the podcast to explain her work to illustrate whether the phenotype of galactosemia is related to GALT activity or galactose metabolism. Her group have been working with plant enzymes in fruit flies. Restoring galactose metabolism without restoring GALT rescues both compromised survival in larvae and an adul…

Dr Roman Trepp attempts to answer the question, Do early-treated adults with phenylketonuria sense high phenylalanine levels?Do early-treated adults with phenylketonuria sense high phenylalanine levels?Laura Hauri, Raphaela Muri, Regula Everts, Roman Trepphttps://doi.org/10.1002/jmd2.12446Oleh Journal of Inherited Metabolic Disease

Professors Fréd Vaz and Ronald Wanders present an entertaining and informative overview of fatty acid homeostasis and explain why the catabolic and anabolic processes cannot be considered separately.Disorders of fatty acid homeostasisFrédéric M. Vaz, et al https://doi.org/10.1002/jimd.12734Oleh Journal of Inherited Metabolic Disease

Dr Annet Bosch describes three cases where young adults developed worsening neurological symptoms after a change in diet. Initially confused with Guillan-Barré Syndrome, this treatable condition may be hard to diagnose but devastating to miss. Find full details here: https://doi.org/10.1002/jmd2.12427…

Dr Irena Muffels is joined by Professor Eva Morava to discuss insights into heterozygous DHDDS variants, an autosomal dominant IMD that appears to impact on multiple different metabolic pathways. Assessing age of onset and clinical symptoms over time in patients with heterozygous pathogenic DHDDS variantsI. J. J. Muffels, et alhttps://doi.org/10.10…

Professor Phillip Pearl joins Eva Morava to discuss the footprints of metabolic epilepsies and a very brief introduction to the intertwined nature of music and neurology. Read the referenced paper here: https://doi.org/10.1016/j.ymgme.2023.107690Find IMDs associated with epilepsies at: http://iembase.org/gamuts/store/docs/IMDs_presenting_with_epile…

Dr Henry Lee joins the podcast to discuss the challenges of developing gene therapies for inherited disorders of neurotransmission and shares the progress that his group has made with SSADH deficiency. Gene replacement therapies for inherited disorders of neurotransmission: Current progress in succinic semialdehyde dehydrogenase deficiencyHenry H. …

Dr Tom Hartl discusses his group's work with a mouse model that knocks out both GALT and GALK and the insights that this provides into classic galactosemia.Galactokinase 1 is the source of elevated galactose-1-phosphate and cerebrosides are modestly reduced in a mouse model of classic galactosemiaLinley Mangini, et alhttps://doi.org/10.1002/jmd2.12…

Marjorie Dixon and Annemiek van Wegberg join guest host Curtis Coughlin II to complete the treatment puzzle in pyridoxine dependent epilepsy and explain the role and practicalities of lysine restriction in PDE.Dietary management for pyridoxine-dependent epilepsy due to α-aminoadipic semialdehyde dehydrogenase deficiency, a follow-on from the intern…

Nenad Blau hosts Professor David Cassiman as he explains when to consider a metabolic differential in pediatric and adult liver disease. Read the referenced paper here: https://doi.org/10.1016/j.ymgme.2019.04.002Find liver disorders associated with IMDS at: http://iembase.org/gamuts/store/docs/Liver_disorders_in_inherited_metabolic_disorders.pdf…

In the latest shortcast, Inez Bosnyak describes a case of ALG1-CDG presenting without an abnormal isoelectric focusing pattern. Normal transferrin glycosylation does not rule out severe ALG1 deficiencyInez Bosnyak, et alhttps://doi.org/10.1002/jmd2.12415Oleh Journal of Inherited Metabolic Disease

Dr Estela Rubio-Gozalbo and Dr Bernadette Jansma explain why brains oscillate, what that has to do with classical galactosemia and how a non-invasive intervention could help with language difficulties. Altered neural oscillations in classical galactosaemia during sentence productionSara Mazzini, et alhttps://doi.org/10.1002/jimd.12740Impact of thet…

Alexandre Nguyen and Manuel Schiff share the story of two siblings with severe haemolytic anaemia developing in previously well controlled methionine synthase reductase deficiency.Late-onset refractory hemolytic anemia in siblings treated for methionine synthase reductase deficiency: A rare complication possibly prevented by hydroxocobalamin dose e…

Dr Fanny Mochel returns to the podcast to answer the question, "What can pediatricians learn from adult inherited metabolic diseases?"Based on a talk at the SSIEM 2023 Annual Symposium.What can pediatricians learn from adult inherited metabolic diseases?Fanny Mochelhttps://doi.org/10.1002/jimd.12729Oleh Journal of Inherited Metabolic Disease

Dr Vykunta Raju K N, Professor of Paediatric Neurology discusses a child presenting with IUGR, microcephaly, cataracts, developmental delay, seizures, and cerebral atrophy.L-Serine Biosynthesis Defect: A Treatable Condition Masquerading as TORCH InfectionVykuntaraju K. Gowda et alhttps://link.springer.com/article/10.1007/s12098-024-05181-3…

Eva Morava discusses the creation of the IEMbase with Nenad Blau before the pair welcome Gabriella Horvath to discuss metabolic mimics of cerebral palsy in the first episode of the footprints series. Read the referenced paper here: https://doi.org/10.1016/j.ymgme.2021.03.008Find all the metabolic mimics of CP at http://iembase.org/gamuts/store/docs…

Dr Maja Risager Nielsen and Dr François Feillet discuss pregnancy in PKU and two different papers looking at the outcomes in pregnancies with and without BH4 treatment. The impact of phenylalanine levels during pregnancy on birth weight and later development in children born to women with phenylketonuriaMaja Risager Nielsen, et alhttps://doi.org/10…

When might acute liver failure have a metabolic cause? Dr Robert Hegarty tries to answer this question and more following his recent review article on Genetic aetiologies of acute liver failure.Genetic aetiologies of acute liver failureRobert Hegarty, Richard J. Thompsonhttps://doi.org/10.1002/jimd.12733…

Dr Mariko Bennett and Dr Laura Adang discuss the precarious balance between a protective and a destructive immune response, as is seen in inborn errors in nucleotide metabolism. Our discussion focuses on the most common of these disorders: Aicardi Goutières syndrome (AGS). Sadly, despite the many gains in understanding about AGS, there remain many …

Dr Gustavo Spolador discusses the paucity of data around palliative care in Inherited Metabolic Disease and some of his own observations in a Brazilian quaternary hospital.Pediatric palliative care for metabolic diseases: 20-year epidemiological survey of outpatients at a Brazilian quaternary hospitalGustavo Marquezani Spolador, et alhttps://doi.or…

This episode brings together two popular podcast topics, pregnancy and urea cycle disorders. Dr Margreet Wagenmakers and Dr Karolina Stepien share recent insights from a literature review and international survey exploring the experiences of mothers with urea cycle disorders. The management and clinical outcomes of pregnancies in women with urea cy…

Mel McSweeney and Dr Mildrid Yeo briefly outline the approach to urea cycle disorder management and the Gt Ormond Street experience using glycerol phenylbutyrate as a nitrogen scavenger. Clinical experience with glycerol phenylbutyrate in 20 patients with urea cycle disorders at a UK paediatric centreMildrid Yeo, et alhttps://doi.org/10.1002/jmd2.1…

The podcast returns to the subject of gene therapy, with Julien Baruteau, Nicola Brunetti-Pierri, and Paul Gissen discussing the potential of liver directed therapies with an emphasis on Wilson disease, Crigler-Najjar syndrome and PKU.Liver-directed gene therapy for inherited metabolic diseasesJulien Baruteau, Nicola Brunetti-Pierri, Paul Gissenhtt…

Dr Maren Thiel, Chair of the German speaking self-help group for fatty oxidation disorders, presents work completed with the Freiburg metabolic team looking at psychosocial issues and coping strategies in families affected by LC-FAOD.Psychosocial issues and coping strategies in families affected by long-chain fatty acid oxidation disordersMaren Thi…

Listener feedback link: https://form.jotform.com/240459204544050Kunwar Jung-KC and Alba Tristán-Noguero discuss tyrosine hydroxylase deficiency and explain how the tyrosine hyodroxylase cofactor, BH4, has shown early therapeutic potential in human neurons and a knock-in mouse model. Tetrahydrobiopterin (BH4) treatment stabilizes tyrosine hydroxylas…

Dr Hiroki Hanafusa presents the unusual case of a woman who was initially diagnosed with Fanconi Syndrome and later found to have Lysinuric Protein Intolerance.Lysinuric protein intolerance exhibiting renal tubular acidosis/Fanconi syndrome in a Japanese womanHiroaki Hanafusa, et alhttps://doi.org/10.1002/jmd2.12392…

A superlative trio, Dr Machteld Oud, Dr Clara van Karnebeek and Dr Saskia Wortmann join the podcast to explain the importance of diagnostics, why all exomes aren't equal and just how should you proceed after a 'negative' exome.How to proceed after “negative” exome: A review on genetic diagnostics, limitations, challenges, and emerging new multiomic…

Merel Hermans describes her work reviewing neuropsychological stability in adults with classical galactosemia.Neuropsychological stability in classical galactosemia: A pilot study in 10 adult patientsMerel E. Hermans, et alhttps://doi.org/10.1002/jmd2.12410Oleh Journal of Inherited Metabolic Disease

Returning guests, Nina Stolwijk and Dr Carla Hollak, and their colleague Dr Annet Bosch, try to untangle the tricky subject of regulation in nutritional products used as therapies in IMD. They also present a framework for when a food should be considered a medicine. Food or medicine? A European regulatory perspective on nutritional therapy products…

Shelby Mills on behalf of the UTH Medical Genetics Team, invites you to consider three mystery cases serving to hi-light some common, and some less common, presenting features for a treatable inherited metabolic disease.Arginase deficiency masked by cerebral palsy and coagulopathy—Three varied presentations of Latin American originShelby L. Mills, …

Dr Sonam Gurung and Dr Julien Baruteau discuss movement disorders in Arginosuccinic aciduria and explain how recent work with mRNA therapy shows potential as a treatment in this condition.The incidence of movement disorder increases with age and contrasts with subtle and limited neuroimaging abnormalities in argininosuccinic aciduriaGurung et alhtt…

Dr Malak Alghamdi unravels the mystery of a 32-year-old woman with a history of recurrent miscarriage and early neonatal death with congenital anomalies. Classical phenylketonuria presenting as maternal PKU syndrome in the offspring of an intellectually normal womanMalak Ali Alghamdi, et al https://doi.org/10.1002/jmd2.12384…

In this podcast, Dr Roshni Vara discusses the experience of a single paediatric liver centre with children whose liver failure arose due to a mitochondrial DNA depletion syndrome.Hepatic presentations of mitochondrial DNA depletion syndrome in children: A single tertiary liver centre experienceR. Vara, et alhttps://doi.org/10.1002/jimd.12633…

Professor Jayesh Sheth shares 20 years of insights on diagnosing adult onset lysosomal storage disorders at a tertiary genetic centre in India.Lysosomal storage disorders identified in adult population from India: Experience of a tertiary genetic centre and review of literatureJayesh Sheth, et alhttps://doi.org/10.1002/jmd2.12407…

Dr David Bick, Dr Jim Bonham MBE and Henrietta Hopkins re-create a panel from the SSIEM Annual Meeting in 2022 to discuss the use of whole genome sequencing in NBS, asking "are we entering a new era of screening?"Genomic newborn screening: Are we entering a new era of screening?Ute Spiekerkoetter, et alhttps://doi.org/10.1002/jimd.12650…

Dr Sander Houten discusses a child with hyperlysinemia diagnosed via newborn screening and whether this reflects a disease or just a metabolic perturbation. This distinction is relevant as inducing this state may be a treatment option in GA1 or pyridoxine dependent epilepsy. A case of hyperlysinemia identified by urine newborn screeningMehdi Yegane…

The Journal of Inherited Metabolic Disease Editorial Committee come together to talk about the direction of metabolic medicine, the dangers and potential of AI, impact factors, reviewing papers and their publication hopes for 2024. There's also a little metabolic quiz, allowing you to pit your wits against the committee. Featuring: Shamima Rahman, …

Blood spots are integral to disease monitoring in PKU, however, there are concerns regarding correlation between capillary and plasma levels and discrepancies arising based on sampling quality and storage. Dr Rachel Carling explains how a volumetric blood collection device presents a cost effective way to improve consistency and reduce rejected sam…