Evidence map›Paper›PMID 19941150›Full record

ArticleJournal of neural transmission (Vienna, Austria : 1996)2010

The extended life span of Drosophila melanogaster eye-color (white and vermilion) mutants with impaired formation of kynurenine.

Gregory F Oxenkrug

Abstract read
In one paragraph

Article in Journal of neural transmission (Vienna, Austria : 1996), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
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

38 citing papers in PubMed.

  1. Article
  2. Review
  3. Genetic bias in repeated evolution of pigment loss in cave populations of the Asellus aquaticus species complex.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2024
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Kynurenine pathway, NADExperimental gerontology · 2020
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  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

1 author.

Gregory F OxenkrugPsychiatry and Inflammation Program, Department of Psychiatry, Tufts Medical Center, Tufts University, Boston, MA, USA. gregoryox@aol.com

Funding

Genetic Regulation of Indoleamine-2,3-dioxygenase and Psychiatric Complications oR21MH083225 · NIMH · TUFTS MEDICAL CENTER · PI OXENKRUG, GREGORY F · 2009 to 2010
$443k
NIMH NIH HHS R21 MH083225
6 · The paper itself

Abstract

Animal and human studies suggest that aging is associated with increased formation of kynurenine (KYN) from tryptophan (TRY). The rate-limiting factors of TRY-KYN metabolism are transmembrane transport of TRY, and activity of enzyme, TRY 2,3-dioxygenase (TDO2). Eye-color mutants, white (w1118) (impaired TRY transport) and vermilion (v48a and v2) (deficient TDO activity), were compared with wild-type Oregon-R (Ore-R) strain of Drosophila melanogaster. Female 1-day-old adult flies maintained on a standard medium, and acclimatized to 12-h light:12-h dark cycle were collected, and then regularly transferred to fresh medium every 3-4 days. The number of dead flies was recorded at the time of transfer. Forty flies were studied in each experimental group. The life span of w1118 (mean = 45.5 days), and v48a (mean = 47.6 days) and v2 (mean = 43.8 days), were significantly longer than of wild-type Ore-R flies (27.1 days) (p < 0.001, Logrank test). There were no differences in life span between w1118 and v48a and v2 mutants. Present results suggest that prolongation of life span may be associated with slow rate of KYN formation from TRY.

Indexed as

AnimalsAnimals, Genetically ModifiedBiological Transport, ActiveDrosophila melanogasterEyeFemaleKynurenineLongevityMutationPigmentationSpecies SpecificityTime FactorsTryptophanTryptophan OxygenaseKynurenineTryptophanTryptophan Oxygenase

Identifiers

PMID19941150
PMCPMC3013506

What OpenQuestion holds

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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.