Evidence map›Paper›PMID 22585619›Full record

ArticleJournal of physiology and biochemistry2012

Effect of zinc supplementation on type 2 diabetes parameters and liver metallothionein expressions in Wistar rats.

Xue Wang, Hongyan Li, Zhe Fan, Ya Liu

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Article in Journal of physiology and biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Zinc.Advances in food and nutrition research · 2021
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  14. Zinc and diabetes mellitus: understanding molecular mechanisms and clinical implications.Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences · 2015
    Review
  15. Article
  16. Antioxidant role of zinc in diabetes mellitus.World journal of diabetes · 2015
    Review
  17. Article
  18. 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

4 authors.

Xue WangSchool of Republic Health, Jilin University, Changchun, People's Republic of China, 130021. paperpersonal@163.com
Hongyan Li
Zhe Fan
Ya Liu

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zinc is a trace metal and acts as an active component of various enzymes. Zinc deficiency has been suggested to be associated with the development of diabetes. The present study investigated the role of zinc supplementation on prevention of diabetic conditions. A double-disease model mimicking hyperlipidemia and type 2 diabetes was created by applying high-fat diet and streptozotocin (STZ) to Wistar rats. We demonstrated that zinc supplementation improved symptoms of diabetes such as polydipsia and increased serum level of high-density lipoprotein cholesterol, indicating that zinc supplementation has a potential beneficial effect on diabetic conditions. The level of maldondialdehyde (MDA), an oxidative stress marker, was reduced in liver by zinc supplementation in high fat-fed rats with or without STZ injection. Meanwhile, we observed an increase in the expression of metallothioneins (MTs) in liver of rats treated with zinc. This suggests that the induction of MTs in liver, which has been shown to be important in scavenging free radicals, could be one of the underlying mechanisms of zinc supplementation on reducing MDA levels in liver. Finally, we found that zinc levels in liver were increased while there was no change in serum zinc levels, indicating that local zinc level might be a critical factor for the induction of MTs. Also, the level of MTs could potentially be an index of zinc bioavailability. Taken together, these results suggest that both zinc and MT could play an important role in balancing nutrition and metabolism to prevent diabetic development.

Indexed as

AnimalsBlood GlucoseDiabetes Mellitus, ExperimentalDiabetes Mellitus, Type 2Dietary SupplementsHypoglycemic AgentsInsulinLipidsLiverMaleMalondialdehydeMetallothioneinOxidative StressRatsRats, WistarZincBlood GlucoseHypoglycemic AgentsInsulinLipidsMalondialdehydeMetallothioneinZinc

Identifiers

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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.