Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli

Abstract Background Children with autism spectrum disorder (ASD) have urinary metabolites suggesting impairments in several pathways, including oxidative stress, inflammation, mitochondrial dysfunction, and gut microbiome alterations. Sulforaphane, a supplement with indirect antioxidant effects that...

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Main Authors: Stephen Bent, Brittany Lawton, Tracy Warren, Felicia Widjaja, Katherine Dang, Jed W. Fahey, Brian Cornblatt, Jason M. Kinchen, Kevin Delucchi, Robert L. Hendren
Format: Article
Language:English
Published: BMC 2018-05-01
Series:Molecular Autism
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13229-018-0218-4
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author Stephen Bent
Brittany Lawton
Tracy Warren
Felicia Widjaja
Katherine Dang
Jed W. Fahey
Brian Cornblatt
Jason M. Kinchen
Kevin Delucchi
Robert L. Hendren
author_facet Stephen Bent
Brittany Lawton
Tracy Warren
Felicia Widjaja
Katherine Dang
Jed W. Fahey
Brian Cornblatt
Jason M. Kinchen
Kevin Delucchi
Robert L. Hendren
author_sort Stephen Bent
collection DOAJ
description Abstract Background Children with autism spectrum disorder (ASD) have urinary metabolites suggesting impairments in several pathways, including oxidative stress, inflammation, mitochondrial dysfunction, and gut microbiome alterations. Sulforaphane, a supplement with indirect antioxidant effects that are derived from broccoli sprouts and seeds, was recently shown to lead to improvements in behavior and social responsiveness in children with ASD. We conducted the current open-label study to determine if we could identify changes in urinary metabolites that were associated with clinical improvements with the goal of identifying a potential mechanism of action. Methods Children and young adults enrolled in a school for children with ASD and related neurodevelopmental disorders were recruited to participate in a 12-week, open-label study of sulforaphane. Fasting urinary metabolites and measures of behavior (Aberrant Behavior Checklist—ABC) and social responsiveness (Social Responsiveness Scale—SRS) were measured at baseline and at the end of the study. Pearson’s correlation coefficient was calculated for the pre- to post-intervention change in each of the two clinical scales (ABS and SRS) versus the change in each metabolite. Results Fifteen children completed the 12-week study. Mean scores on both symptom measures showed improvements (decreases) over the study period, but only the change in the SRS was significant. The ABC improved − 7.1 points (95% CI − 17.4 to 3.2), and the SRS improved − 9.7 points (95% CI − 18.7 to − 0.8). We identified 77 urinary metabolites that were correlated with changes in symptoms, and they clustered into pathways of oxidative stress, amino acid/gut microbiome, neurotransmitters, hormones, and sphingomyelin metabolism. Conclusions Urinary metabolomics analysis is a useful tool to identify pathways that may be involved in the mechanism of action of treatments targeting abnormal physiology in ASD. Trial registration This study was prospectively registered at clinicaltrials.gov (NCT02654743) on January 11, 2016.
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spelling doaj.art-4ae4943e44a44211881f4e1cb7cb39e42022-12-21T23:46:46ZengBMCMolecular Autism2040-23922018-05-019111210.1186/s13229-018-0218-4Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoliStephen Bent0Brittany Lawton1Tracy Warren2Felicia Widjaja3Katherine Dang4Jed W. Fahey5Brian Cornblatt6Jason M. Kinchen7Kevin Delucchi8Robert L. Hendren9Department of Psychiatry, University of California, San FranciscoDepartment of Psychiatry, University of California, San FranciscoDepartment of Psychiatry, University of California, San FranciscoDepartment of Psychiatry, University of California, San FranciscoDepartment of Epidemiology and Biostatistics, University of California, San FranciscoDepartments of Medicine, Pharmacology and Molecular Sciences, International Health, and Cullman Chemoprotection Center, Johns Hopkins UniversityNutramax Laboratories Consumer Care, IncMetabolon, IncDepartment of Psychiatry, University of California, San FranciscoDepartment of Psychiatry, University of California, San FranciscoAbstract Background Children with autism spectrum disorder (ASD) have urinary metabolites suggesting impairments in several pathways, including oxidative stress, inflammation, mitochondrial dysfunction, and gut microbiome alterations. Sulforaphane, a supplement with indirect antioxidant effects that are derived from broccoli sprouts and seeds, was recently shown to lead to improvements in behavior and social responsiveness in children with ASD. We conducted the current open-label study to determine if we could identify changes in urinary metabolites that were associated with clinical improvements with the goal of identifying a potential mechanism of action. Methods Children and young adults enrolled in a school for children with ASD and related neurodevelopmental disorders were recruited to participate in a 12-week, open-label study of sulforaphane. Fasting urinary metabolites and measures of behavior (Aberrant Behavior Checklist—ABC) and social responsiveness (Social Responsiveness Scale—SRS) were measured at baseline and at the end of the study. Pearson’s correlation coefficient was calculated for the pre- to post-intervention change in each of the two clinical scales (ABS and SRS) versus the change in each metabolite. Results Fifteen children completed the 12-week study. Mean scores on both symptom measures showed improvements (decreases) over the study period, but only the change in the SRS was significant. The ABC improved − 7.1 points (95% CI − 17.4 to 3.2), and the SRS improved − 9.7 points (95% CI − 18.7 to − 0.8). We identified 77 urinary metabolites that were correlated with changes in symptoms, and they clustered into pathways of oxidative stress, amino acid/gut microbiome, neurotransmitters, hormones, and sphingomyelin metabolism. Conclusions Urinary metabolomics analysis is a useful tool to identify pathways that may be involved in the mechanism of action of treatments targeting abnormal physiology in ASD. Trial registration This study was prospectively registered at clinicaltrials.gov (NCT02654743) on January 11, 2016.http://link.springer.com/article/10.1186/s13229-018-0218-4AutismMetabolomicsAntioxidantBiomarker
spellingShingle Stephen Bent
Brittany Lawton
Tracy Warren
Felicia Widjaja
Katherine Dang
Jed W. Fahey
Brian Cornblatt
Jason M. Kinchen
Kevin Delucchi
Robert L. Hendren
Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
Molecular Autism
Autism
Metabolomics
Antioxidant
Biomarker
title Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
title_full Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
title_fullStr Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
title_full_unstemmed Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
title_short Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
title_sort identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli
topic Autism
Metabolomics
Antioxidant
Biomarker
url http://link.springer.com/article/10.1186/s13229-018-0218-4
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