Evidence map›Paper›PMID 24402234›Full record

ArticleToxins2014

Methylglyoxal (MG) and cerebro-renal interaction: does long-term orally administered MG cause cognitive impairment in normal Sprague-Dawley rats?

Kimio Watanabe, Kana Okada, Ryoji Fukabori, Yoshimitsu Hayashi, Koichi Asahi, Hiroyuki Terawaki, Kazuto Kobayashi, Tsuyoshi Watanabe, Masaaki Nakayama

Open access · goldAbstract read
In one paragraph

Article in Toxins, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Advanced Glycation End-Product Precursor Methylglyoxal May Lead to Development of Alzheimer's Disease.Diabetes, metabolic syndrome and obesity : targets and therapy · 2022
    Article
  8. Article
  9. Article
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  11. Review
  12. Article
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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

9 authors at 2 institutions in 1 country.

Kimio WatanabeDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. ag9t2wja@fmu.ac.jp.
Kana OkadaDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. kaokada@hiroshima-u.ac.jp.
Ryoji FukaboriDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. fukabori@fmu.ac.jp.
Yoshimitsu HayashiDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. caco@fmu.ac.jp.
Koichi AsahiDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. asahi@fmu.ac.jp.
Hiroyuki TerawakiDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. terawaki@fmu.ac.jp.
Kazuto KobayashiDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. kazuto@fmu.ac.jp.
Tsuyoshi WatanabeDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. twat0423@fmu.ac.jp.
Masaaki NakayamaDepartment of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan. masanaka@fmu.ac.jp.
Fukushima Medical University · JPHiroshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methylglyoxal (MG), one of the uremic toxins, is a highly reactive alpha-dicarbonyl compound. Recent clinical studies have demonstrated the close associations of cognitive impairment (CI) with plasma MG levels and presence of kidney dysfunction. Therefore, the present study aims to examine whether MG is a direct causative substance for CI development. Eight-week-old male Sprague-Dawley (SD) rats were divided into two groups: control (n = 9) and MG group (n = 10; 0.5% MG in drinking water), and fed a normal diet for 12 months. Cognitive function was evaluated by two behavioral tests (object exploration test and radial-arm maze test) in early (4-6 months of age) and late phase (7-12 months of age). Serum MG was significantly elevated in the MG group (495.8 ± 38.1 vs. 244.8 ± 28.2 nM; p < 0.001) at the end of study. The groups did not differ in cognitive function during the course of study. No time-course differences were found in oxidative stress markers between the two groups, while, antioxidants such as glutathione peroxidase and superoxide dismutase activities were significantly increased in the MG group compared to the control. Long-term MG administration to rats with normal kidney function did not cause CI. A counter-balanced activation of the systemic anti-oxidant system may offset the toxicity of MG in this model. Pathogenetic significance of MG for CI requires further investigation.

Indexed as

Administration, OralAngiotensinogenAnimalsAntioxidantsCognitionCognition DisordersGlutathione PeroxidaseKidneyMaleMaze LearningOxidative StressPyruvaldehydeRatsRats, Sprague-DawleySuperoxide DismutaseAngiotensinogenAntioxidantsGlutathione PeroxidasePyruvaldehydeSuperoxide Dismutase

Identifiers

PMID24402234
PMCPMC3920260
OpenAlexW1964706382

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.