Evidence map›Paper›PMID 33404738›Full record

ArticlePsychopharmacology2021

Chronic nanocurcumin treatment ameliorates pain-related behavior, improves spatial memory, and reduces hippocampal levels of IL-1β and TNFα in the chronic constriction injury model of neuropathic pain.

Sepideh Saffarpour, Atousa Janzadeh, Behnaz Rahimi, Fatemeh Ramezani, Farinaz Nasirinezhad

Abstract read
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In one paragraph

Article in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 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

5 authors at 2 institutions in 1 country.

Sepideh SaffarpourPhysiology Research Center, Department of Physiology, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
Atousa JanzadehRadiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.
Behnaz RahimiPhysiology Research Center, Department of Physiology, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
Fatemeh RamezaniPhysiology Research Center, Department of Physiology, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
Farinaz NasirinezhadPhysiology Research Center, Department of Physiology, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran. ssaffarpour@rocketmail.com.
Iran University of Medical Sciences · IRIslamic Azad University, Shahr-e-Qods Branch · IR

Funding

Iran University of Medical Sciences 97-4-32-13617
6 · The paper itself

Abstract

backgroundMemory deficit is a common cognitive comorbid in patients with neuropathic pain that need better treatment. Recent research revealed that nanocurcumin has an antinociceptive action and a protective effect against memory disorders, suggesting its possible effectiveness for the treatment of neuropathic pain and its comorbidity.

methodsAdult male albino Wistar rats (n = 32) were randomly divided into four experimental groups: CCI+ nanocurcumin, CCI + vehicle, sham + nanocurcumin, and sham + vehicle. Neuropathic pain induced by a chronic constriction injury of the sciatic nerve. Nanocurcumin or vehicle was injected intraperitoneally for 10 days. Behavioral assessment achieved to evaluate pain threshold in the von Frey test and radiant heat test, also spatial learning and memory examined by the Morris water maze (MWM) test. To explore the possible relation, IL-1β, and TNF-α levels of the hippocampus measured by enzyme-linked immunosorbent assay (ELISA).

resultsOur data showed that CCI caused neuropathic pain-related behaviors and spatial learning and memory disorders in rats. Chronic treatment with nanocurcumin significantly increased pain threshold (P < 0.001; F = 27.63, F = 20.58), improved spatial memory (P < 0.01; F = 47.37), and decreased the hippocampal levels of IL-1β (P < 0.001; F = 33.57) and TNF-α (P < 0.01; F = 7.25) in CCI rats.

conclusionChronic nanocurcumin can ameliorate pain-related behavior, improve spatial learning and memory deficits, and is associated with the reduction of IL-1β and TNF-α levels in the hippocampus in CCI rats. Nanocurcumin may be potentially providing a therapeutic alternative for the treatment of neuropathic pain and its memory impairment comorbidity.

Indexed as

AnalgesicsAnimalsBehavior, AnimalConstrictionCurcuminDisease Models, AnimalHippocampusInterleukin-1betaMaleMemory DisordersNanoparticlesNeuralgiaPain ThresholdRatsRats, WistarSciatic NerveAnalgesicsCurcuminIL1B protein, ratInterleukin-1betaTumor Necrosis Factor-alphaIL-1β,TNF-αNanocurcuminNeuropathic painSpatial memory, Hippocampus

Identifiers

PMID33404738
OpenAlexW3120866832

What OpenQuestion holds

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Registered trials

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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.