Evidence map›Paper›PMID 22834911›Full record

ArticleFree radical research2012

Manganese superoxide dismutase is dispensable for post-natal development and lactation in the murine mammary gland.

Adam J Case, Frederick E Domann

Abstract read
In one paragraph

Article in Free radical research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Revisiting an age-old question regarding oxidative stress.Free radical biology & medicine · 2014
    Review
  7. Review
  8. Article
  9. 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

2 authors at 1 institution in 1 country.

Adam J CaseFree Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52240, USA.
Frederick E Domann
University of Iowa · US

Funding

TRAINING PROGRAM IN FREE RADICAL AND RADIATION BIOLOGYT32CA078586 · NCI · UNIVERSITY OF IOWA · PI SPITZ, DOUGLAS ROBERT · 1999 to 2024
$5.7M
Epigenetic factors governing SOD2 gene expressionR01CA073612 · NCI · UNIVERSITY OF IOWA · PI DOMANN, FREDERICK E · 2003 to 2007
$1.3M
Molecular Species Responsible for Tumor Supressive Effect of MnSODR01CA115438 · NCI · UNIVERSITY OF IOWA · PI DOMANN, FREDERICK E · 2007 to 2011
$1.2M
NCI NIH HHS R01 CA073612NCI NIH HHS R01 CA115438NCI NIH HHS T32 CA078586
6 · The paper itself

Abstract

Mammary gland development is a multistage process requiring tightly regulated spatial and temporal signalling pathways. Many of these pathways have been shown to be sensitive to oxidative stress. Understanding that the loss of manganese superoxide dismutase (Sod2) leads to increased cellular oxidative stress, and that the loss or silencing of this enzyme has been implicated in numerous pathologies including those of the mammary gland, we sought to examine the role of Sod2 in mammary gland development and function in situ in the mouse mammary gland. Using Cre-recombination driven by the mouse mammary tumor virus (MMTV) promoter, we created a mammary-specific post-natal conditional Sod2 knock-out mouse model. Surprisingly, while substantial decreases in Sod2 were noted throughout both virgin and lactating adult mammary glands, no significant changes in developmental structures either pre- or post-pregnancy were observed histologically. Moreover, mothers lacking mammary gland expression of Sod2 were able to sustain equal numbers of litters, equal pups per litter, and equal pup weights as were control animals. Overall, our results demonstrate that loss of Sod2 expression is not universally toxic to all cell types and that excess mitochondrial superoxide can apparently be tolerated during the development and function of post-natal mammary glands.

Indexed as

AnimalsFemaleImmunohistochemistryLactationMammary Glands, AnimalMammary Tumor Virus, MouseMiceMice, KnockoutOxidative StressSuperoxide DismutaseSuperoxide Dismutase

Identifiers

PMID22834911
PMCPMC3569059
OpenAlexW2033019567

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.