Evidence map›Paper›PMID 24930841›Full record

ArticleToxicology letters2014

Manganese accumulation in bone following chronic exposure in rats: steady-state concentration and half-life in bone.

Stefanie L O'Neal, Lan Hong, Sherleen Fu, Wendy Jiang, Alexander Jones, Linda H Nie, Wei Zheng

Abstract read
In one paragraph

Article in Toxicology letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

49 citing papers in PubMed, 88 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Scientific opinion on the tolerable upper intake level for manganese.EFSA journal. European Food Safety Authority · 2023
    Article
  12. Article
  13. A State-of-the-Science Review on Metal Biomarkers.Current environmental health reports · 2023
    Review
  14. Article
  15. Article
  16. Review
  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 1 institution in 1 country.

Stefanie L O'NealSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Lan HongSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Sherleen FuSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Wendy JiangSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Alexander JonesSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Linda H NieSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
Wei ZhengSchool of Health Sciences, Purdue University, West Lafayette, IN 47907, USA. Electronic address: wzheng@purdue.edu.
Purdue University West Lafayette · US

Funding

Choroid Plexus a Target in Metal-Induced NeurotoxicityR01ES008146 · NIEHS · PURDUE UNIVERSITY WEST LAFAYETTE · PI ZHENG, WEI · 1998 to 2014
$5.0M
Development and Validation of a Novel In Vivo Neutron Activation Analysis TechnolR21OH010044 · OH · PURDUE UNIVERSITY · PI NIE, LINDA H · 2012 to 2013
$338k
NIEHS NIH HHS R01 ES008146NIEHS NIH HHS R01-ES008146NIOSH CDC HHS R21 OH010044NIOSH CDC HHS R21-OH010044
6 · The paper itself

Abstract

Literature data indicate that bone is a major storage organ for manganese (Mn), accounting for 43% of total body Mn. However, the kinetic nature of Mn in bone, especially the half-life (t(1/2)), remained unknown. This study was designed to understand the time-dependence of Mn distribution in rat bone after chronic oral exposure. Adult male rats received 50 mg Mn/kg (as MnCl2) by oral gavage, 5 days per week, for up to 10 weeks. Animals were sacrificed every 2 weeks during Mn administration for the uptake study, and on day 1, week 2, 4, 8, or 12 after the cessation at 6-week Mn exposure for the t(1/2) study. Mn concentrations in bone (MnBn) were determined by AAS analysis. By the end of 6-week's treatment, MnBn appeared to reach the steady state (T(ss)) level, about 2-3.2 fold higher than MnBn at day 0. Kinetic calculation revealed t(1/2)s of Mn in femur, tibia, and humerus bone of 77 (r=0.978), 263 (r=0.988), and 429 (r=0.994) days, respectively; the average t(1/2) in rat skeleton was about 143 days, equivalent to 8.5 years in human bone. Moreover, MnBn were correlated with Mn levels in striatum, hippocampus, and CSF. These data support MnBn to be a useful biomarker of Mn exposure.

Indexed as

AlgorithmsAnimalsBody WeightBone and BonesBrainCentral Nervous SystemHalf-LifeKineticsMagnesium ChlorideMaleManganeseMetalsMuscle, SkeletalOrgan SizePharmacokineticsRatsMagnesium ChlorideManganeseMetalsBiomarkerBoneDispositionHalf-lifeManganese

Identifiers

PMID24930841
PMCPMC4126163
OpenAlexW2116567348

What OpenQuestion holds

Textmetadata
LicenceTDM
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.