Evidence map›Paper›PMID 33673687›Full record

ReviewNutrients2021

Two Faces of Vitamin C in Hemodialysis Patients: Relation to Oxidative Stress and Inflammation.

Patrick Chaghouri, Nour Maalouf, Sophia Lorina Peters, Piotr Jan Nowak, Katarzyna Peczek, Anna Zasowska-Nowak, Michal Nowicki

Open access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Patrick ChaghouriStudent of Medical Faculty, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.ORCID 0000-0002-5749-1707
Nour MaaloufStudent of Medical Faculty, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.
Sophia Lorina PetersStudent of Medical Faculty, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.
Piotr Jan NowakDepartment of Nephrology, Hypertension, and Kidney Transplantation, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.ORCID 0000-0002-8876-0682
Katarzyna PeczekDepartment of Nephrology, Hypertension, and Kidney Transplantation, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.
Anna Zasowska-NowakPalliative Medicine Laboratory, Medical University of Lodz, ul. Zeromskiego 113, 90-549 Lodz, Poland.ORCID 0000-0003-4501-736X
Michal NowickiDepartment of Nephrology, Hypertension, and Kidney Transplantation, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.ORCID 0000-0002-0823-5440
Medical University of Lodz · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hemodialysis (HD) is the most common method of renal replacement therapy. Besides toxins, it eliminates nutrients from the circulation, such as ascorbic acid (AA). HD-patients present AA deficiency more often than representatives of the general population, also due to dietary restrictions. This condition aggravates oxidative stress and inflammation related to uremia and extracorporeal circulation and increases cardiovascular risk followed by mortality. Supplementation of AA seems to be a promising approach in the treatment of hemodialysis patients. Many successful interventions restored plasma AA concentration in HD patients by enteral or intravenous supplementation, concomitantly inhibiting oxidative stress and inflammation. A significant number of studies reported opposite, serious pro-oxidant effects of AA. In this narrative review, we present studies, commenting on their limitations; on AA plasma or serum concentration and the influence of its supplementation on protein and lipid peroxidation, DNA damage, reactive oxygen species generation, paraoxonase activity, advanced glycation endproducts, and C-reactive protein (CRP) concentration. Moreover, in terms of safety, the possible development of oxalosis in HD patients regarding the intravenous or enteral route of AA administration is discussed. Unequivocal clinical results of recent studies on hemodialysis patients are displayed.

Indexed as

InflammationOxidative StressRenal DialysisAscorbic AcidHumansVitaminsAscorbic AcidVitaminsantioxidantascorbic acidcardiovascular riskconcentrationhemodialysisinflammationoxalateoxidative stressprooxidantsupplementation

Identifiers

PMID33673687
PMCPMC7997461
OpenAlexW3135832601

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.