Evidence map›Paper›PMID 30656189›Full record

ArticleAnnals of clinical and translational neurology2019

Age-related phenotype and biomarker changes in SSADH deficiency.

Melissa L DiBacco, Jean-Baptiste Roullet, Kush Kapur, Madalyn N Brown, Dana C Walters, K Michael Gibson, Phillip L Pearl

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.3field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 31 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Gene therapy for neurotransmitter-related disorders.Journal of inherited metabolic disease · 2024
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. NovelNeurology · 2020
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Melissa L DiBaccoDepartment of Neurology Boston Children's Hospital Harvard Medical School Boston Massachusetts.
Jean-Baptiste RoulletDepartment of Pharmacotherapy College of Pharmacy and Pharmaceutical Sciences Washington State University Spokane Washington.
Kush KapurDepartment of Neurology Boston Children's Hospital Harvard Medical School Boston Massachusetts.
Madalyn N BrownDepartment of Pharmacotherapy College of Pharmacy and Pharmaceutical Sciences Washington State University Spokane Washington.
Dana C WaltersDepartment of Pharmacotherapy College of Pharmacy and Pharmaceutical Sciences Washington State University Spokane Washington.
K Michael GibsonDepartment of Pharmacotherapy College of Pharmacy and Pharmaceutical Sciences Washington State University Spokane Washington.
Phillip L PearlDepartment of Neurology Boston Children's Hospital Harvard Medical School Boston Massachusetts.
Washington State University Spokane · USHarvard University · USBoston Children's Hospital · US

Funding

Natural History of Succinic Semialdehyde Dehydrogenase Deficiency (SSADHD), a Heritable Disorder of GABA MetabolismR01HD091142 · NICHD · WASHINGTON STATE UNIVERSITY · PI Phillip Lawrence Pearl · 2018 to 2026
$5.3M
Mouse Neurodevelopmental Behavior CoreU54HD090255 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI POMEROY, SCOTT LOREN · 2016 to 2020
$5.2M
Placebo-Controlled Phase II Trial of SGS742 (GABAB receptor antagonist) in Succinic Semialdehyde Dehydrogenase (SSADH) Deficiency, a DisorderR01NS082286 · NINDS · WASHINGTON STATE UNIVERSITY · PI GIBSON, K MICHAEL · 2013 to 2016
$877k
NICHD NIH HHS R01 HD091142NICHD NIH HHS U54 HD090255NINDS NIH HHS R01 NS082286
6 · The paper itself

Abstract

Objective: Succinic Semialdehyde Dehydrogenase (SSADH) deficiency is a disorder of elevated gamma-amino butyric acid (GABA) and gamma hydroxybutyric acid (GHB) and a complex neuropsychiatric profile. Adult reports suggest worsening epilepsy and high SUDEP risk. Methods: Subjects with confirmed SSADH deficiency were recruited into a longitudinal study. Plasma thyroid hormone and total GABA/GHB were quantified by standard clinical chemistry methodologies and mass spectrometry, respectively. Results: A total of 133 subjects with SSADH deficiency are enrolled in the registry; 49 participated in the longitudinal study. The age range of the population is 8 weeks to 63 years (median 7.75 year; 44% male). There is a significant difference in proportions among the age groups in subjects affected with hypotonia, compulsive behavior, sleep disturbances, and seizures. Epilepsy is present in 50% of the total population, and more prevalent in subjects 12 years and older ( Interpretation: There is an age-dependent association with worsening of epilepsy, behavioral disturbances including obsessive-compulsive behavior, and sleep disturbances with age in SSADH deficiency. There is a high risk of SUDEP. We have observed more absence seizures in younger patients, compared to tonic-clonic in the older cohort, which correlates with age-related changes in GABA and GHB concentration and thyroid function, as well as the natural history of seizures in the murine model.

Indexed as

AdolescentAdultAge FactorsAmino Acid Metabolism, Inborn ErrorsBiomarkersChildChild, PreschoolDevelopmental DisabilitiesFemalegamma-Aminobutyric AcidHumansHydroxybutyratesInfantLongitudinal StudiesMaleMiddle AgedBiomarkersgamma-Aminobutyric AcidHydroxybutyratesSuccinate-Semialdehyde DehydrogenaseThyroid Hormones

Identifiers

PMID30656189
PMCPMC6331944
OpenAlexW2903190307

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.