Folate Receptor Antibody (FRAT) Testing for Children in Leicester

Advanced investigation for selected children with neurodevelopmental, cognitive or neurological concerns, supported by full consultant paediatric oversight, interpretation and treatment at The Health Suite. Expert consultant-led FRAT testing for children, providing specialist assessment, diagnosis and personalised treatment for UK families.

What Is the Folate Receptor Antibody (FRAT) Test?

The Folate Receptor Antibody Test (FRAT) detects autoantibodies that interfere with the transport of folate (vitamin B9) into the brain and central nervous system.

Folate is essential for:

• Brain Development: Folate contributes to the formation, growth, and maintenance of brain cells, supporting healthy neurological development from early childhood onwards.
• Neurotransmitter Synthesis: Folate is involved in the production and regulation of neurotransmitters — chemical messengers that influence mood, behaviour, attention, and communication between brain cells.
• DNA Methylation: Folate supports DNA methylation, an important biological process that regulates gene activity and helps control cellular development, repair, and function.
• Cognitive and Behavioural Regulation: By supporting brain chemistry and neurological pathways, folate plays a role in cognitive function, learning, attention, memory, and behavioural regulation.

In some children, folate transport into the brain may be impaired even when blood folate levels are normal, leading to a functional cerebral folate deficiency. FRAT testing helps identify this mechanism.

The test measures two antibody types:

• Blocking Antibodies – These antibodies can interfere with folate attaching to the folate receptor, potentially reducing the amount of folate available for transport into cells.
• Binding antibodies – These antibodies attach to the folate receptor and may affect how effectively the receptor functions, potentially impacting folate uptake and utilisation.

Both are clinically relevant when interpreting neurodevelopmental presentations. By identifying the presence of these antibodies, FRAT testing can provide additional information for selected children with neurodevelopmental, cognitive, or neurological concerns as part of a comprehensive consultant-led assessment at The Health Suite.

When Is Folate Receptor Antibody (FRAT) Testing Considered?

In carefully selected cases, folate receptor antibodies have been associated with:

• Autism Spectrum Conditions: Some research has identified folate receptor antibodies in a proportion of children with autism spectrum conditions, where altered folate transport may be considered as part of a wider clinical assessment.
• Developmental Delay (speech, language or cognition): FRAT testing may be considered for children experiencing delays in areas such as speech, language development, learning, or cognitive skills.
• Learning and Attention Difficulties: Changes in folate-related pathways may be explored in children with ongoing difficulties related to attention, learning, and cognitive function.
• Behavioural Dysregulation: Some children with challenges around emotional regulation, behaviour, or neurological development may benefit from a more detailed assessment of potential contributing factors.
• Unexplained Fatigue or Neurological Symptoms: In selected cases, FRAT testing may provide additional information for children experiencing fatigue or neurological symptoms where the underlying cause is unclear.

Identifying folate receptor antibodies can help clinicians consider a more targeted treatment approach where appropriate, rather than relying on general supplementation alone. Results are interpreted alongside the child’s medical history, symptoms, and clinical assessment by a consultant paediatrician.

Consultant-Led Paediatric Care for Children and Families Across the UK

All paediatric FRAT testing at The Health Suite is clinically assessed, interpreted and managed by Dr Gururaj Setty, Consultant Paediatrician.

This ensures:

• Appropriate clinical selection for testing
• Full developmental and medical assessment
• Safe interpretation of results
• Ability to prescribe medication where indicated
• Clear follow-up and monitoring

This is a medical pathway, not a screening test.

Who Should Consider FRAT Testing for Their Child?

FRAT testing may be considered where a child has:

• Autism spectrum diagnosis or suspected ASD (in appropriate clinical contexts)
• Suspected Cerebral Folate Deficiency Syndrome
• Developmental delay (speech, learning or behaviour)
• Unexplained neurological or cognitive symptoms
• Poor response to standard nutritional interventions
• Family history of autoimmune disease
• Suspected folate transport or methylation issues

Testing is offered only after a consultant has assessed the individual.

Book Paediatric FRAT Testing. Please book online or call us on 0116 2410010. Access the FRAT® Test from anywhere in the UK with The Health Suite.

Access the FRAT® Test from anywhere in the UK with The Health Suite.

Families from throughout the UK choose The Health Suite for specialist Folate Receptor Antibody (FRAT) testing. Our comprehensive pathway includes consultant assessment, laboratory testing, expert interpretation and personalised treatment where clinically indicated.

Treatment Following a Positive FRAT Result

If folate receptor antibodies are identified, the consultant paediatrician can initiate and prescribe appropriate medication, where clinically indicated.

This may include:

• Prescription folate therapy (e.g. calcium folinate rather than standard folic acid)
• Optimisation of supporting B-vitamins (B12, B6, riboflavin)
• Nutritional and dietary strategies to support methylation
• Autoimmune-modulating approaches where appropriate
• Ongoing developmental and clinical monitoring

All treatment is age-appropriate, evidence-based and medically supervised.

The cost of medication is not included in the consultation or follow-up appointment fees. Estimated medication costs are:

• One tablet daily: Approximately £120–£140 per month.
• Two tablets daily: Approximately £240 or more per month.

These costs are estimates and may vary depending on the medication prescribed, dosage and dispensing pharmacy.