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Pediatric Endocrinology · TRMT10A-Related Disorder

Managing Diabetes and Hormones

At a Glance

TRMT10A-related disorder can cause diabetes, low blood sugar, growth hormone deficiency, and delayed puberty. Care is individualized: regular blood sugar and hormone checks guide insulin or other diabetes treatment, growth hormone therapy, and puberty support.

Managing the endocrine and metabolic aspects of TRMT10A-related disorder requires a highly personalized approach. Because the condition is so rare, there is no single “standard” treatment that works for every child. Instead, doctors focus on monitoring your child’s specific levels and adjusting care as their body changes [1][2].

Personalized Diabetes Management

The way diabetes presents in this disorder is remarkably variable. Your care team will use specific tests to determine which medications are most appropriate for your child.

Understanding the Diabetes “Type”

While this is a genetic condition, the high blood sugar can look like different types of diabetes in different children:

  • Insulin Resistance: Some children’s bodies make insulin but cannot use it effectively. In some reported cases, doctors have successfully used metformin, an oral medication that helps the body respond better to its own insulin [3][2]. However, metformin is not appropriate for everyone and cannot replace insulin during significant deficiency.
  • Insulin Deficiency: In other cases, the pancreas does not produce enough insulin. If a child presents with very high blood sugar or diabetic ketoacidosis (DKA), this is a medical emergency requiring urgent hospital treatment with fluids and insulin (often intravenous). Transition to an outpatient insulin regimen happens only after stabilization [4][5].
  • Testing for Insulin Reserve: Doctors often use a C-peptide test to measure how much insulin the pancreas is still making [2]. Interestingly, some children with TRMT10A-related disorder continue to make some of their own insulin for years after their diagnosis, even if they need supplemental insulin shots [4].

Tools for Monitoring

  • Continuous Glucose Monitor (CGM): A CGM is a small sensor worn on the skin that tracks sugar levels 24/7. This can be an optional clinician-directed tool for spotting patterns, identifying “silent” low blood sugar (hypoglycemia), and seeing how food or activity affects your child [4]. However, there is no specific evidence supporting universal routine CGM use in asymptomatic children, and families should be aware of potential burdens like cost, alarms, and skin problems.
  • Long-Term Surveillance: Because diabetes can develop anytime from childhood through the 20s, children who do not have diabetes yet still need regular check-ups [1][2]. This allows doctors to catch rising sugar levels early, before they cause symptoms.

Growth and Development

Short stature is common in this disorder, and it isn’t always just “slow growth.” It can sometimes be caused by a specific hormone lack.

  • Growth Hormone Deficiency (GHD): Some children with TRMT10A-related disorder do not produce enough growth hormone [2]. If your child’s growth velocity (how fast they grow each year) slows down, their doctor may order specialized “stimulation tests” to check hormone levels [2][1].
  • Growth Hormone Therapy: While there is no specific TRMT10A protocol, children with a confirmed deficiency through a standard pediatric endocrine evaluation may be candidates for recombinant human growth hormone (rhGH) to help them reach a more typical height [6][7]. Keep in mind that growth hormone can affect glucose metabolism, which requires close monitoring in a child at risk for diabetes.

Monitoring Puberty

As children with this disorder enter their teenage years, the care team will watch closely for signs of delayed puberty.

  • Primary Gonadal Insufficiency: In some reported cases, the organs that produce sex hormones (ovaries or testes) may not function as expected, a condition known broadly as primary gonadal insufficiency or delayed puberty [2][4].
  • Hormone Checks: During the teen years, doctors may regularly check levels of LH and FSH (hormones that signal the body to start puberty) to ensure development is on track [4]. If puberty is significantly delayed, hormone replacement therapy may be discussed to support bone health and overall development.

A Note on Hypoglycemia

Before diabetes develops, some children may experience the opposite problem: hypoglycemia (low blood sugar), especially when they are sick or haven’t eaten for a while [2]. Knowing this can help you and your child’s teachers stay alert for signs of shakiness, confusion, or irritability that might mean they need medical attention or a snack, according to a written plan provided by your diabetes team [8].

Common questions in this guide

How is diabetes treated in a child with TRMT10A-related disorder?
Treatment depends on whether the child has insulin resistance, a shortage of insulin, or both. Doctors may consider metformin when the body still makes insulin but does not use it well, while insulin is needed when insulin production is too low or blood sugar is very high.
What does a C-peptide test tell us?
A C-peptide test estimates how much insulin the pancreas is still making. The result can help the care team understand the child’s diabetes and decide whether insulin or other treatment may be appropriate.
Should every child with TRMT10A-related disorder use a continuous glucose monitor?
No. A continuous glucose monitor may be offered under clinical guidance to identify blood sugar patterns or unnoticed low blood sugar, but routine use has not been established for children without symptoms. Cost, alarms, and skin irritation are possible concerns.
How often should blood sugar be checked if my child does not have diabetes yet?
Regular check-ups are important because diabetes can develop from childhood through the 20s in TRMT10A-related disorder. Monitoring can identify rising blood sugar before symptoms appear, even when current levels are normal.
Can TRMT10A-related disorder cause growth hormone deficiency?
Yes, some children have slowed growth because they do not make enough growth hormone. If growth slows, doctors may use specialized stimulation tests, and confirmed deficiency may be treated with growth hormone while blood sugar is monitored closely.
How is delayed puberty evaluated in TRMT10A-related disorder?
Doctors may monitor development and check LH and FSH, hormones that help signal puberty, along with gonadal function. If puberty is significantly delayed, hormone replacement may be discussed to support development and bone health.
What are warning signs of low blood sugar in my child?
Shakiness, confusion, or irritability after illness or going without food can signal low blood sugar. Families and schools should follow the written action plan provided by the diabetes team and seek medical help when instructed.

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References

References (8)
  1. 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. 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. 3

    tRNA methyltransferase 10 homologue A (TRMT10A) mutation in a Chinese patient with diabetes, insulin resistance, intellectual deficiency and microcephaly.

    Lin H, Zhou X, Chen X, et al.

    BMJ open diabetes research & care 2020; (8(1)) doi:10.1136/bmjdrc-2020-001601.

    PMID: 33067246
  4. 4

    Homozygous deletion of TRMT10A as part of a contiguous gene deletion in a syndrome of failure to thrive, delayed puberty, intellectual disability and diabetes mellitus.

    Zung A, Kori M, Burundukov E, et al.

    American journal of medical genetics. Part A 2015; (167A(12)):3167-73 doi:10.1002/ajmg.a.37341.

    PMID: 26297882
  5. 5

    TRMT10A Mutation in a Child with Diabetes, Short Stature, Microcephaly and Hypoplastic Kidneys

    Stern E, Vivante A, Barel O, Levy-Shraga Y

    Journal of clinical research in pediatric endocrinology 2022; (14(2)):227-232 doi:10.4274/jcrpe.galenos.2020.2020.0265.

    PMID: 33448213
  6. 6

    Growth hormone deficiency as a cause for short stature in Wiedemann-Steiner Syndrome.

    Stoyle G, Banka S, Langley C, et al.

    Endocrinology, diabetes & metabolism case reports 2018; (2018()) doi:10.1530/EDM-18-0085.

    PMID: 30159147
  7. 7

    Case Report: Sequential treatment of growth hormone deficiency and central precocious puberty in a girl with EP300-mutated Rubinstein-Taybi syndrome.

    Dai H, Gan D

    Frontiers in pediatrics 2026; (14()):1884354 doi:10.3389/fped.2026.1884354.

    PMID: 42591576
  8. 8

    Diabetic emergencies - ketoacidosis, hyperglycaemic hyperosmolar state and hypoglycaemia.

    Umpierrez G, Korytkowski M

    Nature reviews. Endocrinology 2016; (12(4)):222-32 doi:10.1038/nrendo.2016.15.

    PMID: 26893262

This page is for informational purposes only and does not constitute medical advice about TRMT10A-related diabetes or hormone problems. Your child’s endocrinology team should tailor testing and treatment to their specific needs.