Evidence map›Paper›PMID 25435874›Full record

ArticleJournal of toxicology2014

Xylazine as a drug of abuse and its effects on the generation of reactive species and DNA damage on human umbilical vein endothelial cells.

Luz Silva-Torres, Christian Veléz, Lyvia Alvarez, Beatriz Zayas

Open access · goldAbstract read
In one paragraph

Article in Journal of toxicology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact, top 87% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. 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 at 2 institutions in 2 countries.

Luz Silva-TorresPharmacology and Toxicology Department, School of Medicine, University of Puerto Rico, Medical Science Campus, P.O. Box 335067, San Juan, PR 00936-5067, USA ; Puerto Rico Institute of Forensic Science, PR, USA.ORCID 0000-0001-8618-9518
Christian VelézSchool of Environmental Affairs, Universidad Metropolitana, PR, USA.
Lyvia AlvarezPharmacology and Toxicology Department, School of Medicine, University of Puerto Rico, Medical Science Campus, P.O. Box 335067, San Juan, PR 00936-5067, USA ; Puerto Rico Institute of Forensic Science, PR, USA.
Beatriz ZayasPharmacology and Toxicology Department, School of Medicine, University of Puerto Rico, Medical Science Campus, P.O. Box 335067, San Juan, PR 00936-5067, USA ; School of Environmental Affairs, Universidad Metropolitana, PR, USA.
University of Puerto Rico, Medical Sciences Campus · PRUniversidad Metropolitana · PR

Funding

SCIENCE AND TECHNOLOGY COMPETENCY & EDUCATION CORE (STCE)P20GM103475 · NIGMS · UNIVERSITY OF PUERTO RICO MED SCIENCES · PI Humberto Guillermo Ortiz-Zuazaga · 2012 to 2026
$52.9M
VIRUS E34 TAILSPIKE: MODULE FOR PROTEIN:LPS INTERACTIONP20RR016470 · NCRR · UNIVERSITY OF PUERTO RICO RIO PIEDRAS · PI MEJIAS, IDA A · 2001 to 2011
$31.2M
Bridge to the Doctorate at UMET: Building the Next Gene*R25GM067588 · NIGMS · UNIVERSIDAD METROPOLITANA · PI ZAYAS, BEATRIZ · 2003 to 2005
$435k
MINORITY PREDOCTORAL FELLOWSHIP PROGRAM--NIGMSF31ES005691 · NIEHS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ZAYAS, BEATRIZ · 1994 to 1998
–
NCRR NIH HHS P20 RR016470NIEHS NIH HHS F31 ES005691NIGMS NIH HHS P20 GM103475NIGMS NIH HHS R25 GM067588
6 · The paper itself

Abstract

Human xylazine (XYL) abuse among addicts has received great interest due to its potential toxic effects upon addicts and the need to understand the mechanism of action associated with the potential health effects. XYL is an alpha-2 agonist restricted to veterinarian applications, without human medical applications. Our previous work demonstrated that XYL and its combination with cocaine (COC) and/or 6-monoacetylmorphine (6-MAM) induce cell death through an apoptotic mechanism. The aim of this study was to determine the effect of xylazine on the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) as well as DNA damage on endothelial cell. Human umbilical vein endothelial cells (HUVEC) were treated with XYL (60 μM), COC (160 μM), 6-MAM (160 μM), camptothecin (positive control, 50 μM), XYL/COC (50 μM), XYL/6-MAM (50 μM), and XYL/COC/6-MAM (40 μM) for a period of 24 hours. Generation of intracellular ROS, RNS, and DNA fragmentation were analyzed using a fluorometric assay. Results reveal that XYL and 6-MAM increase levels of ROS; no induction of RNS production was observed. The combination of these drugs shows significant increase in DNA fragmentation in G2/M phase, while XYL, COC, and 6-MAM, without combination, present higher DNA fragmentation in G0/G1 phase. These findings support that these drugs and their combination alter important biochemical events aligned with an apoptotic mechanism of action in HUVEC.

Identifiers

PMID25435874
PMCPMC4243599
OpenAlexW2093617660

What OpenQuestion holds

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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.