Neurological and Developmental Care
At a Glance
TRMT10A-related disorder is associated with microcephaly, developmental delay, mild intellectual disability, and seizures. Care focuses on monitoring development and head growth, providing early therapies and school support, and evaluating or treating seizures when clinically indicated.
While the metabolic and endocrine aspects of TRMT10A-related disorder often emerge later in life, the neurological and developmental features are usually the first signs parents and doctors notice. These features typically appear in early childhood and focus on three main areas: head size, learning, and brain activity [1][2].
Understanding Developmental Delay
Most children with this disorder experience some degree of developmental delay. It is important to distinguish between “delay” and “regression”:
- Developmental Delay: This means a child is reaching milestones (like walking, talking, or reading) more slowly than expected for their age [1][3].
- No Typical Regression: While progressive regression has not been a prominent reported pattern in this rare disorder, absence of reported regression is not proof it cannot occur. Any loss of previously acquired skills is not expected and warrants prompt medical assessment [4][1]. Skills are gained, not typically lost, though the pace varies for each child.
Support and Early Intervention
Because the intellectual disability associated with this disorder is often described as mild, early and consistent support can make a significant difference [1].
- Speech and Language Therapy: To help with communication and social skills [5][6].
- Occupational Therapy (OT): To support fine motor skills and daily living tasks [6].
- Physical Therapy (PT): To assist with gross motor skills or any motor abnormalities [7].
- Individualized Education Program (IEP): Working with your child’s school to create an IEP—or the equivalent school support plan depending on local education rules—is a standard part of care for supporting their academic and social growth [8].
Managing Microcephaly
Microcephaly (a head size smaller than average) is a core feature of the disorder [2]. It is important to know that there is no “treatment” or “cure” to change head size itself. Instead, doctors monitor head growth as a way to track brain development over time [4]. In some children, the microcephaly is mild and may become less noticeable as they grow [1].
Epilepsy and Brain Activity
Seizures are reported in some, but not all, individuals with TRMT10A-related disorder. The age when seizures begin varies; some children have their first seizure as early as 2.5 years of age [2][1].
Diagnosis and Testing
If a doctor suspects your child is having seizures, they may order testing based on clinical judgment. These tests are not automatically required for every child with this diagnosis:
- EEG (Electroencephalogram): This test records the brain’s electrical activity. It is ordered when clinically indicated. In some patients, the EEG shows “generalized epileptiform activity,” which means there are electrical patterns that could indicate a risk for seizures [1].
- Brain MRI: This creates a detailed picture of the brain’s structure, but is only used depending on seizure type, examination, and developmental course. Results in TRMT10A-related disorder are often variable. Some children have a completely normal MRI, while others may show isolated or uncommon reported imaging findings, such as slight differences in white matter (the “wiring” of the brain) or rare malformations like a Dandy-Walker variant [1][3][7].
Treatment of Seizures
Seizures in this disorder are typically managed with standard anti-seizure medications chosen by the neurologist [9][10]. If a seizure occurs, there is practical first aid to follow: time the event, protect the child from injury, do not restrain them or put anything in their mouth, place them safely on their side after convulsions stop, and follow the emergency plan provided by your clinician [11]. The overarching goal is to find a treatment that controls the seizures with the fewest possible side effects to support your child’s overall learning and development.
Common questions in this guide
Which therapies can support development in a child with TRMT10A-related disorder?
Can microcephaly in TRMT10A-related disorder be treated?
When might a child with TRMT10A-related disorder need an EEG or brain MRI?
How can I tell developmental delay from regression?
What does generalized epileptiform activity on an EEG mean?
How are seizures treated, and what should I do during one?
Appointments are short. Make every minute count.
Specialist visits move fast. Let us help you prep so your time goes to what matters.
Brain activity testing
Would an EEG be recommended if we suspect my child is having seizures?
Developmental support
Should we ask about an IEP and speech or occupational therapy for learning support?
Brain imaging
When would a brain MRI be considered for my child's care?
Get notified when new evidence is published on Primary microcephaly-mild intellectual disability-young-onset diabetes syndrome.
We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.
References
References (11)
- 1
TRMT10A-Related Neurodevelopmental Disorder Without Metabolic Findings.
Ülker Üstebay D, Aksu Şahin İ, Üstebay S, et al.
Human mutation 2026; (2026()):8058409 doi:10.1155/humu/8058409.
PMID: 42181738 - 2
Expanding the Phenotype of TRMT10A Mutations: Case Report and a Review of the Existing Cases
Şıklar Z, Kontbay T, Colclough K, et al.
Journal of clinical research in pediatric endocrinology 2023; (15(1)):90-96 doi:10.4274/jcrpe.galenos.2021.2021.0110.
PMID: 34541035 - 3
Case Report: Compound heterozygous nonsense mutations in TRMT10A are associated with microcephaly, delayed development, and periventricular white matter hyperintensities.
Narayanan M, Ramsey K, Grebe T, et al.
F1000Research 2015; (4()):912 doi:10.12688/f1000research.7106.1.
PMID: 26535115 - 4
tRNA methyltransferase homologue gene TRMT10A mutation in young adult-onset diabetes with intellectual disability, microcephaly and epilepsy.
Yew TW, McCreight L, Colclough K, et al.
Diabetic medicine : a journal of the British Diabetic Association 2016; (33(9)):e21-5 doi:10.1111/dme.13024.
PMID: 26526202 - 5
Intellectual Disability and Language Disorder.
Marrus N, Hall L
Child and adolescent psychiatric clinics of North America 2017; (26(3)):539-554 doi:10.1016/j.chc.2017.03.001.
PMID: 28577608 - 6
Care of Infants and Children With Down Syndrome: Role of the Family Physician.
Bunt CW, Bunt SK
American family physician 2025; (111(3)):236-244.
PMID: 40106290 - 7
New Insights Into TRMT10A Syndrome: Case Report and Literature Review.
Ceraolo G, Spoto G, Butera A, et al.
American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics 2025; (198(3)):e33015 doi:10.1002/ajmg.b.33015.
PMID: 39440920 - 8
Disproportionate Representation of Children of Color and Parents with Disabilities in the Child Welfare System: The Intersection of Race/Ethnicity, Immigration Status, and Disability.
Loe IM, Buysse CA, deBlank M, et al.
Journal of developmental and behavioral pediatrics : JDBP 2021; (42(6)):512-514 doi:10.1097/DBP.0000000000000989.
PMID: 34232145 - 9
Childhood Neurologic Conditions: Epilepsy Management.
Nickels K
FP essentials 2022; (523()):15-19.
PMID: 36459664 - 10
Delivery of epilepsy care to adults with intellectual and developmental disabilities.
Devinsky O, Asato M, Camfield P, et al.
Neurology 2015; (85(17)):1512-21 doi:10.1212/WNL.0000000000002060.
PMID: 26423430 - 11
Pharmacological interventions for epilepsy in people with intellectual disabilities.
Jackson CF, Makin SM, Marson AG, Kerr M
The Cochrane database of systematic reviews 2015; CD005399 doi:10.1002/14651858.CD005399.pub3.
PMID: 26333428
This page is for informational purposes only and does not constitute medical advice about your child's development, seizures, or testing. Discuss concerns and individualized care with your child's neurologist and healthcare team.