Evidence map›Paper›PMID 28448089›Full record

ArticleThe journal of nutrition, health & aging2017

Bone Degeneration and Its Recovery in SMP30/GNL-Knockout Mice.

K Nishijima, T Ohno, A Amano, Y Kishimoto, Y Kondo, A Ishigami, S Tanaka

Open access · greenAbstract read
In one paragraph

Article in The journal of nutrition, health & aging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 25% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Ascorbate Is a Primary Antioxidant in Mammals.Molecules (Basel, Switzerland) · 2022
    Review
  4. Laminarin from Seaweed (Cancer biotherapy & radiopharmaceuticals · 2020
    Article
  5. Article
  6. Article
  7. 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 4 institutions in 1 country.

K NishijimaKazutoshi Nishijima, Animal Research Laboratory, Bioscience Education-Research Center, Akita University, 1-1-1 Hondo, Akita 101-8543, Japan, E-mail: kanish@gipc.akita-u.ac.jp.
T Ohno
A Amano
Y Kishimoto
Y Kondo
A Ishigami
S Tanaka
Tokyo Metropolitan Institute of Gerontology · JPAkita University · JPNagoya University · JPNational Center for Geriatrics and Gerontology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Senescence marker protein-30 (SMP30) decreases androgen-independently with aging and is a lactone-hydrolyzing enzyme gluconolactonase (GNL) that is involved in vitamin C biosynthesis. In the present study, bone properties of SMP30/GNL knockout (KO) mice with deficiency in vitamin C synthesis were investigated to reveal the effects of SMP30/GNL and exogenous vitamin C supplementation on bone formation. Mineral content (BMC) and mineral density (BMD) of the mandible and femur of SMP30/GNL KO and wild-type mice at 2 and 3 months of age with or without vitamin C supplementation were measured by dual-energy X-ray absorptiometry. Body and bone weight of both age groups decreased and became significantly lower than those of wild-type mice. The bones of SMP30/GNL KO mice were rough and porous, with BMC and BMD significantly below wild-type. Oral supplementation with vitamin C eliminated differences in body weight, bone weight, BMC, and BMD between SMP30/GNL KO and wild-type mice at each age. These results indicate that bone degeneration in SMP30/GNL KO mice was caused by lack of vitamin C, and that this mouse strain is an appropriate model for bone metabolism in humans, which have no ability to synthesize vitamin C.

Indexed as

Absorptiometry, PhotonAgingAnimalsAscorbic AcidAscorbic Acid DeficiencyBody WeightBone DensityBone Diseases, MetabolicCalcium-Binding ProteinsCarboxylic Ester HydrolasesDietary SupplementsDisease Models, AnimalFemaleFemurIntracellular Signaling Peptides and ProteinsMaleAscorbic AcidCalcium-Binding ProteinsCarboxylic Ester HydrolasesgluconolactonaseIntracellular Signaling Peptides and ProteinsRgn protein, mouseanimal modelbone mineral densitybone mineral ratiofemurmandibleVitamin C

Identifiers

PMID28448089
PMCPMC12878551
OpenAlexW2550926142

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.