Evidence map›Paper›PMID 29451216›Full record

ArticleNeural regeneration research2018

Does combined therapy of curcumin and epigallocatechin gallate have a synergistic neuroprotective effect against spinal cord injury?

Jiri Ruzicka, Lucia Machova Urdzikova, Barbora Svobodova, Anubhav G Amin, Kristyna Karova, Jana Dubisova, Kristyna Zaviskova, Sarka Kubinova, Meic Schmidt, Meena Jhanwar-Uniyal and 1 more

Open access · goldAbstract read
In one paragraph

Article in Neural regeneration research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 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

11 authors at 4 institutions in 2 countries.

Jiri RuzickaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídenská, Prague, Czech Republic.
Lucia Machova UrdzikovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídenská, Prague, Czech Republic.
Barbora SvobodovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská; Department of Neuroscience, Charles University, Second Faculty of Medicine, Prague, Czech Republic.
Anubhav G AminNew York Medical College, Valhalla, NY, USA.
Kristyna KarovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská; Department of Neuroscience, Charles University, Second Faculty of Medicine, Prague, Czech Republic.
Jana DubisovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská; Department of Neuroscience, Charles University, Second Faculty of Medicine, Prague, Czech Republic.
Kristyna ZaviskovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská; Department of Neuroscience, Charles University, Second Faculty of Medicine, Prague, Czech Republic.
Sarka KubinovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídenská, Prague, Czech Republic.
Meic SchmidtNew York Medical College, Valhalla, NY, USA.
Meena Jhanwar-UniyalNew York Medical College, Valhalla, NY, USA.
Pavla JendelovaInstitute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská; Department of Neuroscience, Charles University, Second Faculty of Medicine, Prague, Czech Republic.
Czech Academy of Sciences, Institute of Experimental Medicine · CZNew York Medical College · USCharles University · CZCzech Academy of Sciences · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Systematic inflammatory response after spinal cord injury (SCI) is one of the factors leading to lesion development and a profound degree of functional loss. Anti-inflammatory compounds, such as curcumin and epigallocatechin gallate (EGCG) are known for their neuroprotective effects. In this study, we investigated the effect of combined therapy of curcumin and EGCG in a rat model of acute SCI induced by balloon compression. Immediately after SCI, rats received curcumin, EGCG, curcumin + EGCG or saline [daily intraperitoneal doses (curcumin, 6 mg/kg; EGCG 17 mg/kg)] and weekly intramuscular doses (curcumin, 60 mg/kg; EGCG 17 mg/kg)] for 28 days. Rats were evaluated using behavioral tests (the Basso, Beattie, and Bresnahan (BBB) open-field locomotor test, flat beam test). Spinal cord tissue was analyzed using histological methods (Luxol Blue-cresyl violet staining) and immunohistochemistry (anti-glial fibrillary acidic protein, anti-growth associated protein 43). Cytokine levels (interleukin-1β, interleukin-4, interleukin-2, interleukin-6, macrophage inflammatory protein 1-alpha, and RANTES) were measured using Luminex assay. Quantitative polymerase chain reaction was performed to determine the relative expression of genes (Sort1, Fgf2, Irf5, Mrc1, Olig2, Casp3, Gap43, Gfap, Vegf, NfκB, Cntf) related to regenerative processes in injured spinal cord. We found that all treatments displayed significant behavioral recovery, with no obvious synergistic effect after combined therapy of curcumin and ECGC. Curcumin and EGCG alone or in combination increased axonal sprouting, decreased glial scar formation, and altered the levels of macrophage inflammatory protein 1-alpha, interleukin-1β, interleukin-4 and interleukin-6 cytokines. These results imply that although the expected synergistic response of this combined therapy was less obvious, aspects of tissue regeneration and immune responses in severe SCI were evident.

Indexed as

curcuminepigallocatechin gallateinflammatory responseneural regenerationspinal cord injury

Identifiers

PMID29451216
PMCPMC5840977
OpenAlexW2790925632

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.