Evidence map›Paper›PMID 29159527›Full record

ArticleClinical and experimental nephrology2018

Melatonin ameliorates intrarenal renin-angiotensin system in a 5/6 nephrectomy rat model.

Sayaka Ishigaki, Naro Ohashi, Takashi Matsuyama, Shinsuke Isobe, Naoko Tsuji, Takamasa Iwakura, Tomoyuki Fujikura, Takayuki Tsuji, Akihiko Kato, Hiroaki Miyajima and 1 more

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In one paragraph

Article in Clinical and experimental nephrology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Melatonin and Vascular Function.Antioxidants (Basel, Switzerland) · 2024
    Review
  7. The New Challenge of Obesity - Obesity-Associated Nephropathy.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024
    Review
  8. Review
  9. Melatonin as a Potential Approach to Anxiety Treatment.International journal of molecular sciences · 2022
    Review
  10. Review
  11. Kidney Damage Caused by Obesity and Its Feasible Treatment Drugs.International journal of molecular sciences · 2022
    Review
  12. Melatonin ameliorates hypertension in hypertensive pregnant mice and suppresses the hypertension-induced decrease in CaHypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
  13. Review
  14. Role of Melatonin in Angiotensin and Aging.Molecules (Basel, Switzerland) · 2021
    Review
  15. Article
  16. Article
  17. The role of periostin in kidney diseases.Central-European journal of immunology · 2021
    Review
  18. Review
  19. Review
  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

11 authors at 1 institution in 1 country.

Sayaka IshigakiInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Naro OhashiInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan. ohashi-n@hama-med.ac.jp.
Takashi MatsuyamaInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Shinsuke IsobeInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Naoko TsujiBlood Purification Unit, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Takamasa IwakuraInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Tomoyuki FujikuraInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Takayuki TsujiInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Akihiko KatoBlood Purification Unit, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Hiroaki MiyajimaInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Hideo YasudaInternal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
Hamamatsu University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundActivation of the intrarenal renin-angiotensin system (RAS) plays a critical role in the pathophysiology of chronic kidney disease (CKD) and hypertension. It has been reported that reactive oxygen species (ROS) are important components of intrarenal RAS activation. Melatonin is recognized as a powerful antioxidant, and we recently reported that impaired nighttime melatonin secretion correlates negatively with urinary angiotensinogen excretion, the surrogate marker of intrarenal RAS activity in patients with CKD. However, whether melatonin supplementation ameliorates the augmentation of intrarenal RAS in CKD has remained unknown. We aimed to clarify whether exogenous melatonin ameliorates intrarenal RAS activation via the reduction of ROS production.

methods5/6 Nephrectomized (Nx) rats were used as a chronic progressive CKD model and compared with sham-operated control rats. The Nx rats were divided into untreated Nx rats and melatonin-treated Nx rats. The levels of intrarenal RAS, ROS components, and renal injury were evaluated after 4 weeks of treatment.

resultsCompared with the control rats, the untreated Nx rats exhibited significant increases in intrarenal angiotensinogen, angiotensin II (AngII) type 1 receptors, and AngII, accompanied by elevated blood pressure, higher oxidative stress (8-hydroxy-2'-deoxyguanosine), lower antioxidant (superoxide dismutase) activity, and increased markers of interstitial fibrosis (α-smooth muscle actin, Snail, and type I collagen) in the remnant kidneys. Treatment with melatonin significantly reversed these abnormalities.

conclusionAntioxidant treatment with melatonin was shown to ameliorate intrarenal RAS activation and renal injury in a 5/6 Nx rat model.

Indexed as

ActinsAnimalsAntioxidantsCollagen Type IDisease Models, AnimalDrug Evaluation, PreclinicalKidneyMaleMelatoninNephrectomyOxidative StressRats, Sprague-DawleyReceptors, MelatoninRenal Insufficiency, ChronicRenin-Angiotensin SystemSnail Family Transcription FactorsActa2 protein, ratActinsAntioxidantsCollagen Type IMelatoninReceptors, MelatoninSnail Family Transcription Factors5/6 NephrectomyBlood pressureChronic kidney diseaseIntrarenal renin–angiotensin systemMelatoninOxidative stress

Identifiers

PMID29159527
OpenAlexW2770626627

What OpenQuestion holds

Textmetadata
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Registered trials

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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.