Evidence map›Paper›PMID 26678364›Full record

ArticleComparative medicine2015

Daytime Blue Light Enhances the Nighttime Circadian Melatonin Inhibition of Human Prostate Cancer Growth.

Robert T Dauchy, Aaron E Hoffman, Melissa A Wren-Dail, John P Hanifin, Benjamin Warfield, George C Brainard, Shulin Xiang, Lin Yuan, Steven M Hill, Victoria P Belancio and 3 more

Open access · greenAbstract read
In one paragraph

Article in Comparative medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

31 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. The circadian rhythm as therapeutic target in inflammatory bowel disease.Journal of the Canadian Association of Gastroenterology · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Vivarium Lighting as an Important Extrinsic Factor Influencing Animal-based Research.Journal of the American Association for Laboratory Animal Science : JAALAS · 2023
    Review
  7. Review
  8. Influence of Light Phase Exposure to LED Lighting on Circadian Levels of Neuroendocrine Hormones in Sprague-Dawley Rats.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  9. Article
  10. Article
  11. Circadian Rhythms, Disease and Chronotherapy.Journal of biological rhythms · 2021
    Review
  12. Review
  13. The inhibitory effect of melatonin on human prostate cancer.Cell communication and signaling : CCS · 2021
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  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

13 authors at 2 institutions in 1 country.

Robert T DauchyDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA. rdauchy@tulane.edu.
Aaron E HoffmanDepartment of Epidemiology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Melissa A Wren-DailDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
John P HanifinDepartment of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Benjamin WarfieldDepartment of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
George C BrainardDepartment of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Shulin XiangDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Lin YuanDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Steven M HillDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Victoria P BelancioDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Erin M DauchyDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Kara SmithDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
David E BlaskDepartment of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, USA.
Thomas Jefferson University · USTulane University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Light controls pineal melatonin production and temporally coordinates circadian rhythms of metabolism and physiology in normal and neoplastic tissues. We previously showed that peak circulating nocturnal melatonin levels were 7-fold higher after daytime spectral transmittance of white light through blue-tinted (compared with clear) rodent cages. Here, we tested the hypothesis that daytime blue-light amplification of nocturnal melatonin enhances the inhibition of metabolism, signaling activity, and growth of prostate cancer xenografts. Compared with male nude rats housed in clear cages under a 12:12-h light:dark cycle, rats in blue-tinted cages (with increased transmittance of 462-484 nm and decreased red light greater than 640 nm) evinced over 6-fold higher peak plasma melatonin levels at middark phase (time, 2400), whereas midlight-phase levels (1200) were low (less than 3 pg/mL) in both groups. Circadian rhythms of arterial plasma levels of linoleic acid, glucose, lactic acid, pO2, pCO2, insulin, leptin, and corticosterone were disrupted in rats in blue cages as compared with the corresponding entrained rhythms in clear-caged rats. After implantation with tissue-isolated PC3 human prostate cancer xenografts, tumor latency-to-onset of growth and growth rates were markedly delayed, and tumor cAMP levels, uptake-metabolism of linoleic acid, aerobic glycolysis (Warburg effect), and growth signaling activities were reduced in rats in blue compared with clear cages. These data show that the amplification of nighttime melatonin levels by exposing nude rats to blue light during the daytime significantly reduces human prostate cancer metabolic, signaling, and proliferative activities.

Indexed as

Circadian RhythmLightAnimalsBlood GlucoseCell DivisionCorticosteroneFatty AcidsHumansInsulinLactic AcidLeptinMaleMelatoninProstatic NeoplasmsRatsRats, NudeBlood GlucoseCorticosteroneFatty AcidsInsulinLactic AcidLeptinMelatonin

Identifiers

PMID26678364
PMCPMC4681241
OpenAlexW2435365468

What OpenQuestion holds

Textmetadata
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.