Evidence map›Paper›PMID 30218019›Full record

ArticleScientific reports2018

Nicotine and sleep deprivation: impact on pain sensitivity and immune modulation in rats.

Camila Hirotsu, Matheus Negrao Pedroni, Laís Fernanda Berro, Sergio Tufik, Monica Levy Andersen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. 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
0.4field-weighted citation impact, top 36% 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, 7 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 2 countries.

Camila HirotsuDepartment of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.
Matheus Negrao PedroniDepartment of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.
Laís Fernanda BerroDepartment of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, USA.
Sergio TufikDepartment of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.
Monica Levy AndersenDepartment of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil. ml.andersen12@gmail.com.
Universidade Federal de São Paulo · BRUniversity of Mississippi Medical Center · US

Funding

Associação Fundo de Incentivo à Pesquisa (AFIP) not applicable
6 · The paper itself

Abstract

Repeated nicotine administration has been associated with increased paradoxical sleep in rats and antinociceptive properties, whereas paradoxical sleep deprivation (PSD) elicits pronociceptive and inflammatory responses. Thus, we aimed to evaluate the effect of repeated nicotine administration and its withdrawal combined with PSD on pain sensitivity and inflammatory markers. Sixty adult male Wistar rats were subjected to repeated injections of saline (SAL) or nicotine (NIC) for 12 days or 7 days of nicotine followed by acute mecamylamine administration on day 8 to precipitate nicotine abstinence (ABST). On day 9, the animals were submitted to PSD for 72 h or remained in control condition (CTRL); on day 12, thermal pain threshold was assessed by the hot plate test. PSD significantly decreased the latency to paw withdrawal in all groups compared to their respective controls. ABST-PSD animals presented higher levels of interleukin (IL)-6 compared to all groups, except ABST-CTRL. After adjustment for weight loss, IL-6, IL-4 and tumor necrosis factor alpha, ABST-PSD was associated with the lowest pain threshold. Nicotine and IL-4 levels were predictors of higher pain threshold. Hyperalgesia induced by PSD prevailed over the antinociceptive action of nicotine, while the association between PSD and ABST synergistically increased IL-6 concentrations and decreased pain threshold.

Indexed as

AnimalsHyperalgesiaImmunityInterleukin-4Interleukin-6MaleMecamylamineNicotinePainPain MeasurementPain ThresholdRatsRats, WistarSleep DeprivationSleep, REMTumor Necrosis Factor-alphaInterleukin-4Interleukin-6MecamylamineNicotineTumor Necrosis Factor-alpha

Identifiers

PMID30218019
PMCPMC6138689
OpenAlexW2891751600

What OpenQuestion holds

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LicenceCC BY
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.