Evidence map›Paper›PMID 21184127›Full record

ArticleLasers in medical science2011

Low-level laser therapy (LLLT) acts as cAMP-elevating agent in acute respiratory distress syndrome.

Flávia Mafra de Lima, Leonardo M Moreira, A B Villaverde, Regiane Albertini, Hugo C Castro-Faria-Neto, Flávio Aimbire

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Lasers in medical science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 14% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  13. Photobiomodulation and Antiviral Photodynamic Therapy in COVID-19 Management.Advances in experimental medicine and biology · 2021
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  15. Low level laser therapy as a modality to attenuate cytokine storm at multiple levels, enhance recovery, and reduce the use of ventilators in COVID-19.Canadian journal of respiratory therapy : CJRT = Revue canadienne de la therapie respiratoire : RCTR · 2020
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  19. Low-level laser therapy rescues dendrite atrophy via upregulating BDNF expression: implications for Alzheimer's disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
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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

6 authors at 5 institutions in 1 country.

Flávia Mafra de LimaResearch and Development Institute - IP&D, Av. Shishima Hifumi, 2911 - Urbanova, Po Box 12244-00, São José dos Campos, SP, Brazil.
Leonardo M Moreira
A B Villaverde
Regiane Albertini
Hugo C Castro-Faria-Neto
Flávio Aimbire
Department of Aerospace Science and Technology · BRFederal University of São João del-Rei · BRFundação Oswaldo Cruz · BRUniversidade Federal de São Paulo · BRUniversidade Nove de Julho · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this work was to investigate if the low-level laser therapy (LLLT) on acute lung inflammation (ALI) induced by lipopolysaccharide (LPS) is linked to tumor necrosis factor (TNF) in alveolar macrophages (AM) from bronchoalveolar lavage fluid (BALF) of mice. LLLT has been reported to actuate positively for relieving the late and early symptoms of airway and lung inflammation. It is not known if the increased TNF mRNA expression and dysfunction of cAMP generation observed in ALI can be influenced by LLLT. For in vivo studies, Balb/c mice (n = 5 for group) received LPS inhalation or TNF intra nasal instillation and 3 h after LPS or TNF-α, leukocytes in BALF were analyzed. LLLT administered perpendicularly to a point in the middle of the dissected bronchi with a wavelength of 660 nm and a dose of 4.5 J/cm(2). The mice were irradiated 15 min after ALI induction. In vitro AM from mice were cultured for analyses of TNF mRNA expression and protein and adenosine3':5'-cyclic monophosphate (cAMP) levels. One hour after LPS, the TNF and cAMP levels in AM were measured by ELISA. RT-PCR was used to measure TNF mRNA in AM. The LLLT was inefficient in potentiating the rolipram effect in presence of a TNF synthesis inhibitor. LLLT attenuated the neutrophil influx and TNF in BALF. In AM, the laser increased the cAMP and reduced the TNF-α mRNA. LLLT increases indirectly the cAMP in AM by a TNF-dependent mechanism.

Indexed as

Low-Level Light TherapyAnimalsBase SequenceCyclic AMPDisease Models, AnimalDNA PrimersLipopolysaccharidesMacrophages, AlveolarMaleMiceMice, Inbred BALB CPhosphodiesterase 4 InhibitorsRespiratory Distress SyndromeRNA, MessengerRolipramTumor Necrosis Factor-alphaCyclic AMPDNA PrimersLipopolysaccharidesPhosphodiesterase 4 InhibitorsRNA, MessengerRolipramTumor Necrosis Factor-alpha

Identifiers

PMID21184127
OpenAlexW2087967163

What OpenQuestion holds

Textmetadata
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.