Neurofilaments have been validated as specific body fluid biomarkers of neuro-axonal injury. In this Review, Khalil and colleagues provide an update on the structure and function of neurofilaments, analytical approaches and challenges in different clinical contexts, and progress towards clinical application of neurofilaments as a biomarker in various neurological disorders.

Nature Reviews Neurology is interviewing individuals who are driving efforts to address disparities in neurology through a broad spectrum of diversity, equity and inclusion initiatives. We spoke with neurosurgeon Sonia Mejía Pérez from Mexico about her work to address gaps in hospital care for individuals from minority groups, such as LGBT+ people.

Nature Reviews Neurology is interviewing individuals who are driving efforts to address disparities in neurology through a broad spectrum of diversity, equity and inclusion initiatives. We spoke with stroke neurologist Nirali Vora from the USA about her work to build neurology capacity in low and middle-income countries.

Here, Sven Bölte and colleagues consider the effects of sex and gender on neurodevelopmental conditions. They discuss the available epidemiological, behavioural, neurobiological and endocrinological evidence and highlight the importance of further research in this area.

Novel CAR T cells delivered directly to the CNS could have therapeutic effects in recurrent glioblastoma, according to two early-stage trials.

Two new studies show that clearance of waste, including pathogenic amyloid, through the glymphatic system is driven by synchronized neuronal activity.