{"id":7386,"date":"2026-04-11T13:00:27","date_gmt":"2026-04-11T13:00:27","guid":{"rendered":"https:\/\/autism.fratnow.com\/blog\/?p=7386"},"modified":"2026-04-11T12:31:25","modified_gmt":"2026-04-11T12:31:25","slug":"the-critical-importance-of-early-frat-screening","status":"publish","type":"post","link":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/","title":{"rendered":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening"},"content":{"rendered":"<p>[vc_row][vc_column][vc_single_image image=&#8221;7387&#8243; img_size=&#8221;full&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Timing Matters:&#8221;][vc_column_text single_style=&#8221;&#8221;]The<a href=\"https:\/\/www.fratnow.com\/\"> Folate Receptor Autoantibody Test (FRAT<sup>\u00ae<\/sup>)<\/a> is a blood-based biomarker assay that detects the presence of folate receptor alpha (FR\u03b1) autoantibodies (FRAs). These autoantibodies block or bind to the FR\u03b1, the primary transporter responsible for moving folate across the blood-brain barrier into the central nervous system (CNS). Early detection of FRAs is paramount because it identifies a <strong>treatable cause of cerebral folate deficiency syndrome (CFDS)<\/strong>, a condition oftentimes linked to neurodevelopmental impairments, including <a href=\"https:\/\/autism.fratnow.com\/blog\/a-comprehensive-introduction-to-autism-spectrum-disorder\/\">autism spectrum disorder (ASD)<\/a>. Initiating intervention promptly, often with high-dose folinic acid (leucovorin) or alternate reduced folates, may prevent irreversible neurological damage and significantly improve developmental, cognitive, and behavioral outcomes. Delaying testing risks missing a critical window for therapeutic intervention.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;The Biological Rationale: Why Folate is Non-Negotiable for the Developing Brain:&#8221;][vc_column_text single_style=&#8221;&#8221;]<\/p>\n<ul class=\"mr-left-ol-40-list mr-left-ul-40\">\n<li><strong>Folate&#8217;s Essential Role:<\/strong> Folate (as 5-methyltetrahydrofolate or 5MTHF) is fundamental for DNA synthesis, repair, and methylation, neurotransmitter production, and myelin formation. The developing brain has an exceptionally high demand for folate.<\/li>\n<li><strong>The Blood-Brain Barrier Challenge:<\/strong> Systemic (dietary) folate levels do not guarantee adequate folate in the brain. The <strong>folate receptor alpha (FR\u03b1)<\/strong>, located on the endothelial cells of the blood-brain barrier, is the high-affinity transporter responsible for actively shuttling 5MTHF from the bloodstream into the cerebrospinal fluid (CSF) and brain parenchyma.<\/li>\n<li><strong>The Pathogenic Mechanism of FRAs:<\/strong> FRAs (both &#8220;blocking&#8221; and &#8220;binding&#8221; types) interfere with FR\u03b1 function. Blocking FRAs physically obstruct folate binding, while binding FRAs mark the receptor for internalization and degradation. This results in a type of what can be termed <strong><a href=\"https:\/\/autism.fratnow.com\/blog\/cerebral-folate-deficiency-syndrome\/\">cerebral folate deficiency (CFDS)<\/a><\/strong>\u2014oftentimes lower CSF 5MTHF\u2014despite normal or even elevated systemic folate levels.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Consequences of Untreated Cerebral Folate Deficiency Syndrome (CFDS):&#8221;][vc_column_text single_style=&#8221;&#8221;]When the brain is deprived of adequate folate due to FRAs, a cascade of detrimental events occurs, particularly during critical periods of synaptogenesis and neural circuit formation in early childhood:<\/p>\n<ul class=\"mr-left-ol-40-list mr-left-ul-40\">\n<li><strong>Methylation Deficits &amp; Oxidative Stress:<\/strong> Folate is central to the one-carbon metabolism cycle, which generates methyl groups for DNA methylation and antioxidants like glutathione. CFD leads to global <strong>DNA hypomethylation<\/strong> and <strong>increased oxidative stress<\/strong> in the brain.<\/li>\n<li><strong>Neuronal Dysfunction &amp; Damage:<\/strong> Folate is required for the synthesis of nucleotides (for DNA\/RNA), neurotransmitters (serotonin, dopamine), and myelin. Deficiency impairs neuronal proliferation, migration, differentiation, and synaptic plasticity. Chronic oxidative stress can lead to <strong>mitochondrial dysfunction<\/strong> and neuronal cell death.<\/li>\n<li><strong>Clinical Manifestations:<\/strong> Classic CFD syndrome presents with severe neurodevelopmental regression, spasticity, ataxia, seizures, and acquired microcephaly, often beginning in infancy. In the context of ASD, CFD is associated with more severe symptoms, language regression, and motor deficits.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Evidence for Early Intervention: The &#8220;Critical Window&#8220; Concept:&#8221;][vc_column_text single_style=&#8221;&#8221;]The developing brain exhibits <strong>plasticity<\/strong>, but this is time-sensitive. Neural circuits are most malleable in early childhood. Prolonged deprivation of a key nutrient like folate during this period can lead to:<\/p>\n<ul class=\"mr-left-ol-40-list mr-left-ul-40\">\n<li><strong>Permanent structural and functional alterations<\/strong> in neural networks.<\/li>\n<li><strong>Irreversible loss of developmental milestones<\/strong> (e.g., language, social engagement).<\/li>\n<li><strong>Compensatory maladaptive pathways<\/strong> that become entrenched over time.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Clinical Evidence of Superior Outcomes with Early Treatment:&#8221;][vc_column_text single_style=&#8221;&#8221;]The seminal 2012 study by Frye et al. provides robust evidence:<\/p>\n<ul class=\"mr-left-ol-40-list mr-left-ul-40\">\n<li><strong>High Prevalence:<\/strong> 75.3% of children with ASD tested positive for FRAs.<\/li>\n<li><strong>Strong Correlation:<\/strong> Higher blocking FRA titers correlated with <strong>lower CSF 5MTHF levels<\/strong>.<\/li>\n<li><strong>Significant Improvement with Leucovorin:<\/strong> Children treated with oral leucovorin calcium (2 mg\/kg\/day) showed <strong>significantly greater improvement<\/strong> than untreated controls in:\n<ul class=\"mr-left-ol-40 circle-list mr-left-ul-40\">\n<li><strong>Verbal communication<\/strong> (primary outcome)<\/li>\n<li>Receptive and expressive language<\/li>\n<li>Attention<\/li>\n<li>Stereotypical behaviors<\/li>\n<\/ul>\n<\/li>\n<li><strong>Notable Response Rate:<\/strong> Approximately one-third of treated children demonstrated <strong>moderate to much improvement<\/strong>.<\/li>\n<li><strong>Age as a Key Moderator:<\/strong> Follow-up analyses suggested that younger children with FRAs, particularly those with binding FRAs, showed greater improvements in language with treatment. This directly supports the &#8220;earlier is better&#8221; principle.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Justification for a Proactive, Early Testing Strategy:&#8221;][vc_column_text single_style=&#8221;&#8221;]Diagnosing CFD definitively requires a <strong>lumbar puncture (LP)<\/strong> to measure CSF 5MTHF, an invasive procedure. The FRAT<sup>\u00ae<\/sup> test offers a minimally invasive blood alternative to identify children at <em>high risk<\/em> for CFDS who would benefit from an empirical trial of leucovorin. Waiting for severe symptoms to warrant an LP means missing the opportunity for early, less-invasive intervention. FRAs have been detected in children with ASD as young as 1 years old and are associated with early developmental regression. Testing should occur <strong>as soon as significant developmental concerns arise<\/strong> (e.g., speech delay, social communication difficulties, repetitive behaviors), ideally before age 3, to align with peak brain plasticity.<br \/>\n[\/vc_column_text][vc_column_text single_style=&#8221;&#8221;]Unlike idiopathic ASD of unknown cause, FRA-positive CFDS is a <strong>biologically defined, treatable condition<\/strong>. Identifying it shifts the approach from general behavioral therapies to a targeted medical intervention that addresses a potential root metabolic cause.<\/p>\n<p>Additionally, a negative FRAT<sup>\u00ae<\/sup> does not completely rule out CFD (some cases are FRA-negative), but a <strong>positive test has high predictive value<\/strong> for CFD and a positive response to leucovorin. Missing a positive case means forgoing treatment that could lead to meaningful gains.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Familial Implications:&#8221;][vc_column_text single_style=&#8221;&#8221;]FRAAs can be familial. Testing parents and siblings of a positive child can identify other affected individuals who may benefit from assessment and treatment, extending the preventive benefit beyond the index case. With that in mind, there is recommended clinical protocol for early testing:<\/p>\n<ol class=\"mr-left-ol-40-list mr-left-ul-40\">\n<li><strong>Target Population:<\/strong> Children with ASD, speech\/language delays, developmental coordination disorder, seizures of unknown etiology, or any neurodevelopmental disorder with regression or stagnation.<\/li>\n<li><strong>Timing: As early as possible<\/strong> after concerns are raised, ideally between ages 12 months and 4 years.<\/li>\n<\/ol>\n<p>While a negative test makes CFDS less likely, it does not exclude all folate metabolism issues. Clinical judgment should guide further metabolic or nutritional assessment.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Conclusion:&#8221;][vc_column_text single_style=&#8221;&#8221;]The FRAT<sup>\u00ae<\/sup> is not merely a diagnostic tool; it is a <strong>gateway to a time-sensitive medical intervention<\/strong> for a subset of children with neurodevelopmental disorders. The biological imperative for adequate brain folate during early childhood is absolute. When FRAAs disrupt this supply, the consequences can be severe and lasting. The clinical evidence demonstrates that <strong>early detection of <a href=\"https:\/\/autism.fratnow.com\/blog\/folate-receptor-autoantibodies-in-families-with-autistic-individuals\/\">folate receptor autoantibodies<\/a> via FRAT<sup>\u00ae<\/sup>, followed by prompt leucovorin treatment (reduced folate), can lead to measurable improvements in core symptoms of ASD and potentially alter the developmental trajectory<\/strong>. Therefore, utilizing the FRAT<sup>\u00ae<\/sup> as early as possible is a justified, evidence-based strategy to identify a treatable metabolic etiology and maximize a child&#8217;s developmental potential before the window of optimal neuroplasticity closes.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Early FRAT<sup>\u00ae<\/sup> screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.<\/p>\n","protected":false},"author":4,"featured_media":7387,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening<\/title>\n<meta name=\"description\" content=\"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening\" \/>\n<meta property=\"og:description\" content=\"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\" \/>\n<meta property=\"og:site_name\" content=\"fratnow.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/autismfrat\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-11T13:00:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-11T12:31:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2026\/04\/the-critical-importance-of-early-frat-screening-blog-listing-image.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"730\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Steve Tsetsekos\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening\" \/>\n<meta name=\"twitter:description\" content=\"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2026\/04\/the-critical-importance-of-early-frat-screening-blog-listing-image.webp\" \/>\n<meta name=\"twitter:creator\" content=\"@AutismFrat\" \/>\n<meta name=\"twitter:site\" content=\"@AutismFrat\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Steve Tsetsekos\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\"},\"author\":{\"name\":\"Steve Tsetsekos\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/d5e4020455f25cb3768f5eb9ad5e9f1c\"},\"headline\":\"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening\",\"datePublished\":\"2026-04-11T13:00:27+00:00\",\"dateModified\":\"2026-04-11T12:31:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\"},\"wordCount\":1211,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#organization\"},\"articleSection\":[\"Neurodiversity &amp; Wellbeing\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\",\"url\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\",\"name\":\"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening\",\"isPartOf\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#website\"},\"datePublished\":\"2026-04-11T13:00:27+00:00\",\"dateModified\":\"2026-04-11T12:31:25+00:00\",\"description\":\"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.\",\"breadcrumb\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/autism.fratnow.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#website\",\"url\":\"https:\/\/autism.fratnow.com\/blog\/\",\"name\":\"fratnow.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/autism.fratnow.com\/blog\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#organization\",\"name\":\"fratnow.com\",\"url\":\"https:\/\/autism.fratnow.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/08\/logo.png\",\"contentUrl\":\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/08\/logo.png\",\"width\":194,\"height\":66,\"caption\":\"fratnow.com\"},\"image\":{\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/autismfrat\",\"https:\/\/twitter.com\/AutismFrat\",\"https:\/\/www.linkedin.com\/company\/88011685\/admin\/\",\"https:\/\/www.instagram.com\/fratautism\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/d5e4020455f25cb3768f5eb9ad5e9f1c\",\"name\":\"Steve Tsetsekos\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/09\/e6cec733-36d3-42ae-a0a7-986995164499_medium.jpg\",\"contentUrl\":\"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/09\/e6cec733-36d3-42ae-a0a7-986995164499_medium.jpg\",\"caption\":\"Steve Tsetsekos\"},\"sameAs\":[\"https:\/\/autism.fratnow.com\/blog\/\"],\"url\":\"https:\/\/autism.fratnow.com\/blog\/author\/steve-tsetsekos\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening","description":"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/","og_locale":"en_US","og_type":"article","og_title":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening","og_description":"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.","og_url":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/","og_site_name":"fratnow.com","article_publisher":"https:\/\/www.facebook.com\/autismfrat","article_published_time":"2026-04-11T13:00:27+00:00","article_modified_time":"2026-04-11T12:31:25+00:00","og_image":[{"width":730,"height":400,"url":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2026\/04\/the-critical-importance-of-early-frat-screening-blog-listing-image.webp","type":"image\/webp"}],"author":"Steve Tsetsekos","twitter_card":"summary_large_image","twitter_title":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening","twitter_description":"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.","twitter_image":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2026\/04\/the-critical-importance-of-early-frat-screening-blog-listing-image.webp","twitter_creator":"@AutismFrat","twitter_site":"@AutismFrat","twitter_misc":{"Written by":"Steve Tsetsekos","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#article","isPartOf":{"@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/"},"author":{"name":"Steve Tsetsekos","@id":"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/d5e4020455f25cb3768f5eb9ad5e9f1c"},"headline":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening","datePublished":"2026-04-11T13:00:27+00:00","dateModified":"2026-04-11T12:31:25+00:00","mainEntityOfPage":{"@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/"},"wordCount":1211,"commentCount":0,"publisher":{"@id":"https:\/\/autism.fratnow.com\/blog\/#organization"},"articleSection":["Neurodiversity &amp; Wellbeing"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/","url":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/","name":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening","isPartOf":{"@id":"https:\/\/autism.fratnow.com\/blog\/#website"},"datePublished":"2026-04-11T13:00:27+00:00","dateModified":"2026-04-11T12:31:25+00:00","description":"Early FRAT\u00ae screening detects folate receptor autoantibodies linked to autism and CFDS, enabling timely treatment to improve cognitive and developmental outcomes.","breadcrumb":{"@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/autism.fratnow.com\/blog\/the-critical-importance-of-early-frat-screening\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/autism.fratnow.com\/blog\/"},{"@type":"ListItem","position":2,"name":"The Critical Importance of Early FRAT\u00ae (Folate Receptor Autoantibody Test) Screening"}]},{"@type":"WebSite","@id":"https:\/\/autism.fratnow.com\/blog\/#website","url":"https:\/\/autism.fratnow.com\/blog\/","name":"fratnow.com","description":"","publisher":{"@id":"https:\/\/autism.fratnow.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/autism.fratnow.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/autism.fratnow.com\/blog\/#organization","name":"fratnow.com","url":"https:\/\/autism.fratnow.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/autism.fratnow.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/08\/logo.png","contentUrl":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/08\/logo.png","width":194,"height":66,"caption":"fratnow.com"},"image":{"@id":"https:\/\/autism.fratnow.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/autismfrat","https:\/\/twitter.com\/AutismFrat","https:\/\/www.linkedin.com\/company\/88011685\/admin\/","https:\/\/www.instagram.com\/fratautism\/"]},{"@type":"Person","@id":"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/d5e4020455f25cb3768f5eb9ad5e9f1c","name":"Steve Tsetsekos","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/autism.fratnow.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/09\/e6cec733-36d3-42ae-a0a7-986995164499_medium.jpg","contentUrl":"https:\/\/autism.fratnow.com\/blog\/wp-content\/uploads\/2023\/09\/e6cec733-36d3-42ae-a0a7-986995164499_medium.jpg","caption":"Steve Tsetsekos"},"sameAs":["https:\/\/autism.fratnow.com\/blog\/"],"url":"https:\/\/autism.fratnow.com\/blog\/author\/steve-tsetsekos\/"}]}},"_links":{"self":[{"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/posts\/7386"}],"collection":[{"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/comments?post=7386"}],"version-history":[{"count":2,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/posts\/7386\/revisions"}],"predecessor-version":[{"id":7389,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/posts\/7386\/revisions\/7389"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/media\/7387"}],"wp:attachment":[{"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/media?parent=7386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/categories?post=7386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/autism.fratnow.com\/blog\/wp-json\/wp\/v2\/tags?post=7386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}