The authors describe a 6-year-old girl with developmental delay, psychomotor regression, seizures, mental retardation, and autistic features associated with low CSF levels of 5-methyltetrahydrofolate, the biologically active form of folates in CSF and blood. Folate and B12 levels were normal in peripheral tissues, suggesting cerebral folate deficiency. Results with folinic acid corrected CSF abnormalities and improved motor skills.
Understanding Intradermal Skin Testing: How We Pinpoint Your Allergens
Many health concerns begin with questions about allergies, and a clear diagnosis often starts with testing. Symptoms like nasal congestion,
