Evidence map›Paper›PMID 31667932›Full record

ArticleJournal of cellular and molecular medicine2020

Low-level laser therapy 810-nm up-regulates macrophage secretion of neurotrophic factors via PKA-CREB and promotes neuronal axon regeneration in vitro.

Jiawei Zhang, Jiakai Sun, Qiao Zheng, Xueyu Hu, Zhe Wang, Zhuowen Liang, Kun Li, Jiwei Song, Tan Ding, Xuefeng Shen and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

43 citing papers in PubMed, 64 citations in OpenAlex.

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  10. Human dental pulp stem cells for spinal cord injury.Stem cell research & therapy · 2025
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  14. Photobiomodulation therapy.JADA foundational science · 2025
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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

12 authors at 3 institutions in 1 country.

Jiawei ZhangDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.ORCID 0000-0001-5270-9562
Jiakai SunDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Qiao ZhengDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Xueyu HuDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Zhe WangDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Zhuowen LiangDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Kun LiDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Jiwei SongDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Tan DingDepartment of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Xuefeng ShenDepartment of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Fourth Military Medical University, Xi'an, China.
Jianxin ZhangDepartment of Orthopedics, Weinan Central Hospital, Weinan, China.
Lin QiaoDepartment of Orthopedics, Third Hospital of Chinese PLA, Baoji, China.
Xijing Hospital · CNWeinan Central Hospital · CNAir Force Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Macrophages play key roles in the secondary injury stage of spinal cord injury (SCI). M1 macrophages occupy the lesion area and secrete high levels of inflammatory factors that hinder lesion repair, and M2 macrophages can secrete neurotrophic factors and promote axonal regeneration. The regulation of macrophage secretion after SCI is critical for injury repair. Low-level laser therapy (810-nm) (LLLT) can boost functional rehabilitation in rats after SCI; however, the mechanisms remain unclear. To explore this issue, we established an in vitro model of low-level laser irradiation of M1 macrophages, and the effects of LLLT on M1 macrophage polarization and neurotrophic factor secretion and the related mechanisms were investigated. The results showed that LLLT irradiation decreased the expression of M1 macrophage-specific markers, and increased the expression of M2 macrophage-specific markers. Through forward and reverse experiments, we verified that LLLT can promote the secretion of various neurotrophic factors by activating the PKA-CREB pathway in macrophages and finally promote the regeneration of axons. Accordingly, LLLT may be an effective therapeutic approach for SCI with clinical application prospects.

Indexed as

Low-Level Light TherapyNerve RegenerationAnimalsAxonsCulture Media, ConditionedCyclic AMP-Dependent Protein KinasesCyclic AMP Response Element-Binding ProteinFemaleGanglia, SpinalIsoquinolinesMacrophagesMaleMice, Inbred BALB CNerve Growth FactorsProtein Kinase InhibitorsRNA, MessengerCulture Media, ConditionedCyclic AMP-Dependent Protein KinasesCyclic AMP Response Element-Binding ProteinIsoquinolinesN-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamideNerve Growth FactorsProtein Kinase InhibitorsRNA, MessengerSulfonamidesaxonal regenerationlow-level laser therapyM1 macrophagemacrophage polarizationspinal cord injury

Identifiers

PMID31667932
PMCPMC6933332
OpenAlexW2986575024

What OpenQuestion holds

Textmetadata
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.