Evidence map›Paper›PMID 39961937›Full record

ArticleJournal of materials science. Materials in medicine2025

Demonstration of therapeutic effect of plasma-synthesized polypyrrole/iodine biopolymer in rhesus monkey with complete spinal cord section.

Camilo Ríos, Hermelinda Salgado-Ceballos, Israel Grijalva, Axayacatl Morales-Guadarrama, Araceli Diaz-Ruiz, Roberto Olayo, Juan Morales-Corona, María G Olayo, Guillermo J Cruz, Rodrigo Mondragón-Lozano and 8 more

Abstract read
In one paragraph

Article in Journal of materials science. Materials in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Review
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

18 authors.

Camilo RíosResearch Direction, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, México City, México.
Hermelinda Salgado-CeballosMedical Research Unit in Neurological Diseases, Instituto Mexicano del Seguro Social, Mexico City, México. melisalce@yahoo.com.ORCID http://orcid.org/0000-0002-0715-9263
Israel GrijalvaMedical Research Unit in Neurological Diseases, Instituto Mexicano del Seguro Social, Mexico City, México.
Axayacatl Morales-GuadarramaNational Center for Research in Imaging and Medical Instrumentation, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico.
Araceli Diaz-RuizDepartment of Neurochemistry, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Mexico City, Mexico.
Roberto OlayoDivision of Basic Sciences and Engineering, Department of Physics, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico.
Juan Morales-CoronaDivision of Basic Sciences and Engineering, Department of Physics, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico.
María G OlayoDepartment of Physics, Instituto Nacional de Investigaciones Nucleares, Estado de México, Mexico.
Guillermo J CruzDepartment of Physics, Instituto Nacional de Investigaciones Nucleares, Estado de México, Mexico.
Rodrigo Mondragón-LozanoResearch Center of Proyecto CAMINA A.C., Mexico City, Mexico.
Laura Alvarez-MejiaResearch Center of Proyecto CAMINA A.C., Mexico City, Mexico.
Carlos Orozco-BarriosResearch Center of Proyecto CAMINA A.C., Mexico City, Mexico.
Stephanie Sánchez-TorresResearch Center of Proyecto CAMINA A.C., Mexico City, Mexico.
Omar Fabela-SánchezDepartment of Chemistry Macromolecules and Nanomaterials, CONAHCyT-Centro de Investigación en Química Aplicada, Saltillo, Coahuila, Mexico.
Angélica Coyoy-SalgadoResearch Center of Proyecto CAMINA A.C., Mexico City, Mexico.
Braulio Hernández-GodínezInvestigación Biomédica Aplicada S.A.S. de C.V., Mexico City, Mexico.
Alejandra Ibáñez-ContrerasInvestigación Biomédica Aplicada S.A.S. de C.V., Mexico City, Mexico.
Marisela Mendez-ArmentaDepartment of Neurochemistry, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Mexico City, Mexico.

Funding

Instituto Mexicano del Seguro Social FIS/IMSS/PROT/G15/1444Instituto Nacional de Ciencia y Tecnología del D.F. ICYT-DF PINV11-14Instituto Tecnológico y de Estudios Superiores de Monterrey TecSalud 2017
6 · The paper itself

Abstract

Spinal cord injury (SCI) can cause paralysis, and although multiple therapeutic proposals have been developed in murine models, results have hardly been replicated in humans. As non-human primates (NHP) are more similar to humans than rodents, the current study investigated whether it was possible to reproduce in a NHP, the previously obtained beneficial results by using a plasma-synthesized polypyrrole/iodine (PPy/I) biopolymer, which reduce glial scar formation and inflammatory response and promotes nerve tissue preservation, regenerative processes and functional recovery in rats. In NHPs (Rhesus monkey) with SCI by complete transection (SCT) and with plasma-synthesized PPy/I application (experimental) or without (control), the expression of pro-inflammatory cytokines in blood, preservation of nervous tissue through magnetic resonance imaging and histological and morphometric techniques, regeneration through immunohistochemistry study and functional recovery through clinical examination, were evaluated. Control NHP showed a markedly increased of pro-inflammatory cytokines vs. experimental NHP, which preserved more nerve tissue. At the end of the follow-up, a thinner glial scar in the injured spinal cord was observed in the experimental NHP as well as regenerative nerve processes (NeuN and β-III tubulin expression), while control NHP had a marked glial scar, large cysts and less nerve tissue at the injured zone. Plasma-synthesized PPy/I also reduced the loss of pelvic limb muscle mass and allowed the experimental NHP recovered knee-jerk, withdrawal and plantar reflexes as well as movement in the hind limbs. Since most of the beneficial effects of plasma-synthesized PPy/I previously reported in rats were also observed in the NHP, these preliminary findings make their replication in humans with SCI more likely.

Indexed as

IodinePolymersPyrrolesSpinal Cord InjuriesAnimalsBiopolymersCytokinesFemaleMacaca mulattaMagnetic Resonance ImagingMaleNerve RegenerationRatsRecovery of FunctionSpinal CordBiopolymersCytokinesIodinePolymerspolypyrrolePyrroles

Identifiers

PMID39961937
PMCPMC11832569

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.