Evidence map›Paper›PMID 26896310›Full record

ArticleJournal of chromatography. B, Analytical technologies in the biomedical and life sciences2016

Immediate stabilization of human blood for delayed quantification of endogenous thiols and disulfides.

Daniela Giustarini, Federico Galvagni, Maurizio Orlandini, Paolo Fanti, Ranieri Rossi

Registry-linked trialOpen access · greenAbstract readEvaluation Study
In one paragraph

Article in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01265563 (Correction of Glutathione Deficiency for Treatment of Diabetic Nephropathy), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 21% 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.

NCT01265563 phase2completednot on this map

Correction of Glutathione Deficiency for Treatment of Diabetic Nephropathy

TypeinterventionalSponsorVA Office of Research and DevelopmentRan2011 to 2016Enrolled108ConditionsDiabetic Nephropathy, Proteinuria, Oxidative StressArmsN-acetylcysteine placebo and silibin placebo, N-acetylcysteine active and silibin placebo, N-acetylcysteine placebo and silibin active, N-acetylcysteine active and silibin active, N-acetylcysteine active + high-dose silibin active
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Homocysteine: Canary in the Coal Mine or Hidden Threat? A Biochemical Study on the Role of Plasma Thiols.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  3. Article
  4. Blood Thiol Redox State in Chronic Kidney Disease.International journal of molecular sciences · 2022
    Review
  5. Blood Plasma Quality Control by Plasma Glutathione Status.Antioxidants (Basel, Switzerland) · 2021
    Article
  6. Review
  7. Article
  8. Article
  9. Anethole Dithiolethione Increases Glutathione in Kidney by InhibitingOxidative medicine and cellular longevity · 2020
    Article
  10. Article
  11. 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

5 authors at 2 institutions in 2 countries.

Daniela GiustariniDepartment of Life Sciences, Laboratory of Pharmacology and Toxicology, University of Siena, Via A. Moro 4, 53100 Siena, Italy.
Federico GalvagniDepartment of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy.
Maurizio OrlandiniDepartment of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy.
Paolo FantiDivision of Nephrology, Department of Medicine, The University of Texas Health Science Center San Antonio, and Audie L. Murphy VA Hospital, San Antonio, TX 78229, USA.
Ranieri RossiDepartment of Life Sciences, Laboratory of Pharmacology and Toxicology, University of Siena, Via A. Moro 4, 53100 Siena, Italy. Electronic address: ranieri@unisi.it.
University of Siena · ITAudie L. Murphy Memorial VA Hospital · US

Funding

N-Acetylcysteine and Milk Thistle for Treatment of Diabetic NephropathyR21AT004490 · NCCIH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FANTI, PAOLO · 2009 to 2011
$499k
Correction of glutathione deficiency for treatment of diabetic nephropathyI01CX000264 · VA · SOUTH TEXAS VETERANS HEALTH CARE SYSTEM · PI FANTI, PAOLO · 2011 to 2014
–
CSRD VA I01 CX000264NCCIH NIH HHS AT004490NCCIH NIH HHS R21 AT004490
6 · The paper itself

Abstract

Endogenous thiols undergo rapid and reversible oxidation to disulfides when exposed to oxidants and are, therefore, suitable biomarkers of oxidative stress. However, accurate analysis of thiols in blood is frequently compromised by their artifactual oxidation during sample manipulation, which spuriously elevates the disulfide levels. Here, we describe a validated pre-analytical procedure that prevents both artifactual oxidation of thiols during sample manipulation and their oxidative decay for months in biosamples that are stored at -80°C. Addition of N-ethylmaleimide to blood samples from healthy donors was used to stabilize whole blood, red blood cells, platelets and plasma disulfides, whereas addition of citrate buffer followed by dilution of plasma with H2O was used to stabilize plasma thiols. The concentrations of thiols and disulfides were stable in all biosamples for at least 6 months when analyzed by UV/Vis HPLC at regular intervals. Only 3 ml of blood were needed to perform the analyses of thiols and disulfides in the different blood fractions. This pre-analytical procedure is reliable for use in both animal and human prospective studies. Its ease of implementation makes the method suitable for application to multicenter studies where blood samples are collected by different sites and personnel and are shipped to specific specialized laboratories.

Indexed as

AdultBlood CellsBlood PreservationChemistry Techniques, AnalyticalDisulfidesHumansMiddle AgedOxidation-ReductionSulfhydryl CompoundsDisulfidesSulfhydryl CompoundsBloodDisulfidesPlasmaPlateletsRed blood cellsThiols

Identifiers

PMID26896310
PMCPMC4829439
OpenAlexW2257221418

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.