Evidence map›Paper›PMID 23508458›Full record

ArticleEuropean journal of nutrition2014

Effect of ascorbic acid deficiency on catecholamine synthesis in adrenal glands of SMP30/GNL knockout mice.

Akiko Amano, Makoto Tsunoda, Toshiro Aigaki, Naoki Maruyama, Akihito Ishigami

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In one paragraph

Article in European journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 20 citations in OpenAlex.

  1. Ascorbate Is a Primary Antioxidant in Mammals.Molecules (Basel, Switzerland) · 2022
    Review
  2. Article
  3. Article
  4. Mutations inCirculation research · 2018
    Article
  5. Article
  6. Review
  7. Article
  8. 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

5 authors at 3 institutions in 1 country.

Akiko AmanoMolecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology (TMIG), 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan.
Makoto Tsunoda
Toshiro Aigaki
Naoki Maruyama
Akihito Ishigami
Tokyo Metropolitan Institute of Gerontology · JPThe University of Tokyo · JPTokyo Metropolitan University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe effect of an AA deficiency on catecholamine biosynthesis in adult mice in vivo is unknown. Therefore, we quantified catecholamine and the expression of catecholamine synthetic enzymes in the adrenal glands of senescence marker protein-30 (SMP30)/gluconolactonase (GNL) knockout (KO) mice placed in an AA-deficient state.

methodsAt 30 days of age, mice were divided into the following 4 groups: AA (-) SMP30/GNL KO, AA (+) SMP30/GNL KO, AA (-) wild type (WT), and AA (+) WT. The AA (+) groups were given water containing 1.5 g/L AA, whereas the AA (-) groups received water without AA until the experiment ended. In addition, all mice were fed an AA-depleted diet. Catecholamine levels were measured by a liquid chromatographic method. Tyrosine hydroxylase, dopa decarboxylase, dopamine β-hydroxylase, and phenylethanolamine N-methyltransferase mRNA expression levels were measured with the quantitative real-time polymerase chain reaction (qPCR). Tyrosine hydroxylase and dopamine β-hydroxylase protein levels were quantified by Western blot analysis.

resultsIn the adrenals of AA (-) SMP30/GNL KO mice, noradrenaline and adrenaline levels decreased significantly compared to other three groups of mice, although there were no significant differences in dopamine β-hydroxylase or phenylethanolamine N-methyltransferase mRNA content. Moreover, there was no significant difference in their dopamine β-hydroxylase protein levels. On the other hand, AA depletion did not affect dopamine levels in adrenal glands of mice.

conclusionAn AA deficiency decreases the noradrenaline and adrenaline levels in adrenal glands of mice in vivo.

Indexed as

Adrenal GlandsAnimalsAscorbic Acid DeficiencyAutonomic Nervous System DiseasesBody WeightCalcium-Binding ProteinsCarboxylic Ester HydrolasesCatecholaminesDopamine beta-HydroxylaseFemaleIntracellular Signaling Peptides and ProteinsMaleMiceMice, KnockoutNorepinephrinePhenylethanolamine N-MethyltransferaseCalcium-Binding ProteinsCarboxylic Ester HydrolasesCatecholaminesDopamine beta-HydroxylasegluconolactonaseIntracellular Signaling Peptides and ProteinsNorepinephrinePhenylethanolamine N-MethyltransferaseRgn protein, mouseRNA, MessengerTyrosine 3-Monooxygenase

Identifiers

PMID23508458
OpenAlexW2062678902

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.