Evidence map›Paper›PMID 18096758›Full record

ArticleThe Journal of pharmacology and experimental therapeutics2008

Age-dependent kinetics and metabolism of dichloroacetate: possible relevance to toxicity.

Albert L Shroads, Xu Guo, Vaishali Dixit, Hui-Ping Liu, Margaret O James, Peter W Stacpoole

2 registry-linked trialsOpen access · greenAbstract readComparative Study
In one paragraph

Article in The Journal of pharmacology and experimental therapeutics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
1.3field-weighted citation impact, top 21% 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.

NCT02616484 phase3active not recruitingnot on this mapstarted 2020, after this paper: background citation

Phase 3 Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:

TypeinterventionalSponsorSaol Therapeutics IncRan2020 to 2025Enrolled34ConditionsPyruvate Dehydrogenase Complex DeficiencyArmsDichloroacetate (DCA), Placebo, Genotype
NCT05120284 phase2active not recruitingnot on this mapstarted 2022, after this paper: background citation

Trial of Dichloroacetate (DCA) in Glioblastoma Multiforme (GBM)

TypeinterventionalSponsorUniversity of FloridaRan2022 to 2026Enrolled40ConditionsGlioblastoma MultiformeArmsDichloroacetate (DCA), Genotype
3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 65 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Dichloroacetate for Cancer Treatment: Some Facts and Many Doubts.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Pharmacokinetic and Biochemical Profiling of Sodium Dichloroacetate in Pregnant Ewes and Fetuses.Drug metabolism and disposition: the biological fate of chemicals · 2020
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Age-associated changes in GSH S-transferase gene/proteins in livers of rats.Redox report : communications in free radical research · 2018
    Article
  18. Age-Related Changes in Expression and Activity of Human Hepatic Mitochondrial Glutathione Transferase Zeta1.Drug metabolism and disposition: the biological fate of chemicals · 2018
    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

6 authors at 1 institution in 1 country.

Albert L ShroadsDepartments of Medicine, University of Florida Colleges of Medicine and Pharmacy, University of Florida, Gainesville, Florida, USA.
Xu Guo
Vaishali Dixit
Hui-Ping Liu
Margaret O James
Peter W Stacpoole
University of Florida · US

Funding

WHITE MATTER AND COGNITION IN PARKINSON'S DISEASEM01RR000082 · NCRR · UNIVERSITY OF FLORIDA · PI BEITELSHEES, AMBER L · 1985 to 2009
$29.7M
PLACENTAL/UTERINE &PROSTATE EFFECTS OF ORGANOCHLORINESP42ES007375 · NIEHS · UNIVERSITY OF FLORIDA · PI JAMES, MARGARET OLIVE · 1995 to 2006
$9.5M
DICHLOROACETATE KINETICS, METABOLISM AND TOXICOLOGYR01ES007355 · NIEHS · UNIVERSITY OF FLORIDA · PI STACPOOLE, PETER WALLACE · 1995 to 2009
$4.1M
Pharmacotoxicology of Trichloroethylene MetabolitesR01ES014617 · NIEHS · UNIVERSITY OF FLORIDA · PI STACPOOLE, PETER WALLACE · 2006 to 2010
$2.1M
NCRR NIH HHS M01 RR-000082NCRR NIH HHS M01 RR000082NIEHS NIH HHS ES-007355NIEHS NIH HHS ES-014617NIEHS NIH HHS ES-07375NIEHS NIH HHS P42 ES007375NIEHS NIH HHS R01 ES007355NIEHS NIH HHS R01 ES014617
6 · The paper itself

Abstract

Dichloroacetate (DCA) is an investigational drug for certain metabolic diseases. It is biotransformed principally by the zeta-1 family isoform of glutathione transferase (GSTz1), also known as maleylacetoacetate isomerase (MAAI), which catalyzes the penultimate step in tyrosine catabolism. DCA causes a reversible peripheral neuropathy in several species, including humans. However, recent clinical trials indicate that adults are considerably more susceptible to this adverse effect than children. We evaluated the kinetics and biotransformation of DCA and its effects on tyrosine metabolism in nine patients treated for 6 months with 25 mg/kg/day and in rats treated for 5 days with 50 mg/kg/day. We also measured the activity and expression of hepatic GSTz1/MAAI. Chronic administration of DCA causes a striking age-dependent decrease in its plasma clearance and an increase in its plasma half-life in patients and rats. Urinary excretion of unchanged DCA in rats increases with age, whereas oxalate, an end product of DCA metabolism, shows the opposite trend. Low concentrations of monochloroacetate (MCA), which is known to be neurotoxic, increase as a function of age in the urine of dosed rats. MCA was detectable in plasma only of older animals. Hepatic GSTz1/MAAI-specific activity was inhibited equally by DCA treatment among all age groups, whereas plasma and urinary levels of maleylacetone, a natural substrate for this enzyme, increased with age. We conclude that age is an important variable in the in vivo metabolism and elimination of DCA and that it may account, in part, for the neurotoxicity of this compound in humans and other species.

Indexed as

AdolescentAdultAgingAnimalsChildChild, PreschoolDichloroacetic AcidHumansMaleMetabolic Networks and PathwaysProspective StudiesRandomized Controlled Trials as TopicRatsRats, Sprague-DawleyDichloroacetic Acid

Identifiers

PMID18096758
PMCPMC2613565
OpenAlexW2050961213

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.