The cause of a nutritional neuropathy may not always be obvious when first examining a patient. Restrictive diets with roots in religious practices or personal preferences will be less familiar to neurologists than issues involving bariatric surgery or diseases of malabsorption, and can present as being not overtly malnourished. A recent review in JNNP details links between B-vitamin deficiencies and peripheral neuropathy, and discusses historical trends in the occurrence of nutritional neuropathies. The review's last author, Dr. Alexander Rossor (1), joins host Dr. Saima Chaudhry (2) to talk through how to approach this diagnosis.

Read the paper here: "Nutritional peripheral neuropathies"

(1) UCL Queen Square Institute of Neurology, London, UK (2) Warren Alpert Medical School, Brown University, Rhode Island, USA

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How often do movement disorder specialists agree when classifying tics? A recent study published in JNNP explores this question with a two-stage approach, seeking a diagnosis from experts first based on video evidence alone and then following the provision of additional clinical data. The study's last author, Dr. Christos Ganos (1), joins host Dr. Saima Chaudhry (2) to discuss the results.

Read the paper here: "Distinguishing functional from primary tics: a study of expert video assessments"

Related links:

European Society for the Study of Tourette Syndrome 2022 criteria for clinical diagnosis of functional tic-like behaviours: International consensus from experts in tic disorders https://onlinelibrary.wiley.com/doi/10.1111/ene.15672

Tics and functional tic-like movements: can we tell them apart? https://www.neurology.org/doi/10.1212/WNL.0000000000008372

(1) Department of Neurology (C.G.), Charité University Medicine Berlin, Germany (2) Warren Alpert Medical School, Brown University, Rhode Island, USA

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With the UK government announcing plans to make recreational use of nitrous oxide illegal, JNNP podcast host Dr. Saima Chaudhry (1) is joined by London-based neurologist Dr. Alastair Noyce (2)(3) to examine the findings of his group's recently published research paper, "Nitrous oxide-induced myeloneuropathy: a case series". Read the paper here: https://jnnp.bmj.com/content/94/9/681

Related links:

https://www.gov.uk/government/news/nitrous-oxide-to-be-illegal-by-end-of-the-year (1) Warren Alpert Medical School, Brown University, Rhode Island, USA (2) Barts Health NHS Trust, London, UK (3) Preventive Neurology Unit, Centre for Prevention, Diagnosis and Detection, Faculty of Medicine and Dentistry, Queen Mary University of London, Wolfson Institute of Population Health, London, UK

Please subscribe to the show on Apple Podcasts, Spotify or find it on your platform of choice. Your feedback and reviews are very appreciated.

Follow JNNP on twitter: @JNNP_BMJ