Evidence map›Paper›PMID 33776569›Full record

ArticleJournal of medical biochemistry2021

Effects of Zinc supplementation on serum copper to Zinc and CRP to albumin ratios in hemodialysis patients.

Marwa Hajji, Rania Khedher, Mehdi Mrad, Hammami Mohamed Bassem, Nawel Rafrafi, Salma Chouchi, Moncef Feki, Afef Bahlous, Karim Zouaghi, Hayet Fellah

Open access · diamondAbstract read
In one paragraph

Article in Journal of medical biochemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 41% 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

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

  1. Antioxidants for adults with chronic kidney disease.The Cochrane database of systematic reviews · 2023
    Pooled it
  2. Review
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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

10 authors at 5 institutions in 2 countries.

Marwa HajjiUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Rania KhedherUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Mehdi MradUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Hammami Mohamed BassemUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Nawel RafrafiRadial Hemodialysis Clinic, Manouba, Tunisia.
Salma ChouchiUdial Hemodialysis Clinic, Tunis, Tunisia.
Moncef FekiUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Afef BahlousUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Karim ZouaghiUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Hayet FellahUniversity of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.
Hôpital La Rabta · TNFaculté de médecine de TunisTunis El Manar University · TNInstitut Pasteur de Tunis · TNRadiall (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundZinc (Zn) deficiency is a common condition and could contribute to poor outcomes in hemodialysis (HD) patients. The aim of this study was to evaluate the effects of Zn supplementation on serum copper (Cu) to Zn and C-reactive protein (CRP) to albumin ratios (CAR) in HD patients.

methodsSeventy-seven HD patients were enrolled in a multicentre simple-blind randomized clinical trial. Only 37 HD patients completed the study; they were randomly divided into two groups and supplemented with zinc sulphate (n=17) or placebo (n=20) for two months. Serum Zn and Cu were measured by atomic absorption spectrophotometry. Serum albumin and hypersensitive-CRP were assessed by colorimetric and immunoturbidimetric method, respectively. Determinations were performed before and after supplementation.

resultsAfter two months of supplementation, serum Zn significantly increased, and Cu to Zn ratio decreased in Zn supplemented group, but remained unchanged in the placebo group. In parallel, serum albumin concentrations significantly increased, and CAR decreased in Zn supplemented group only.

conclusionsZn supplementation reduces Cu to Zn and CRP to albumin ratios in HD patients. These changes point towards an improvement in nutritional, oxidative and inflammatory status. The study findings suggest that correcting Zn deficiency reduces poor outcomes in HD patients.

Indexed as

copper to zinc ratioC-reactive protein to albumin ratiohemodialysiszinc supplement

Identifiers

PMID33776569
PMCPMC7982281
OpenAlexW3043846449

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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.