Evidence map›Paper›PMID 26245907›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2016

Hyperexcitability and sensitization of sodium channels of dorsal root ganglion neurons in a rat model of lumber disc herniation.

Jun Yan, Kang Zou, Xiaofeng Liu, Shufen Hu, Qianliang Wang, Xiuhua Miao, Hong-Yan Zhu, Youlang Zhou, Guang-Yin Xu

Abstract read
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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

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  10. Selective phosphodiesterase-2A inhibitor alleviates radicular inflammation and mechanical allodynia in non-compressive lumbar disc herniation rats.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2017
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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

9 authors at 3 institutions in 1 country.

Jun YanDepartment of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China.
Kang ZouDepartment of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China.
Xiaofeng LiuDepartment of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China.
Shufen HuJiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China.
Qianliang WangDepartment of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China.
Xiuhua MiaoCenter for Translational Medicine, The Affiliated Zhangjiagang Hospital, Soochow University, 215600, Zhangjiagang, People's Republic of China.
Hong-Yan ZhuCenter for Translational Medicine, The Affiliated Zhangjiagang Hospital, Soochow University, 215600, Zhangjiagang, People's Republic of China.
Youlang ZhouJiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China.
Guang-Yin XuJiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China. guangyinxu@suda.edu.cn.
Second Affiliated Hospital of Soochow University · CNSoochow University · CNZhangjiagang First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLow back pain and sciatica are the most common symptoms of patients with lumbar disc herniation (LDH). The pathophysiology of lumbocrural pain and sciatica is not fully understood. The aim of the present study was to define the membrane properties and activities of voltage-gated sodium channels of dorsal root ganglion (DRG) neurons in a rat model of LDH.

methodsLDH was established by transplantation of autologous nucleus pulposus (NP) to lumbar 5 and 6 spinal nerves (L5-L6 DRG) of adult male rats. Mechanical paw withdrawal threshold (PWT) and thermal paw withdrawal latency (PWL) were measured 1 day before and through 35 days after transplantation of NP. Changes in expression of VGSCs were determined by western blotting. L5-L6 DRGs neurons innervating the hindpaw were labeled with DiI and acutely dissociated for measuring excitability and sodium channel currents under whole-cell patch clamp configurations.

resultsNP transplantation significantly reduced the PWT and PWL in association with a significant reduction in rheobase and an increase in numbers of action potentials evoked by 2X and 3X rheobase current stimulation. Voltage-gated sodium current density was significantly enhanced in L5-L6 DRG neurons from LDH rats. The inactivation curve showed a leftward shift in LDH rats while activation curve did not significantly alter. However, NP transplantation remarkably enhanced expression of NaV1.7 and NaV1.8 in L5-L6 DRGs but not in T10-12 DRGs.

conclusionThese data suggest that NP application produces pain-related behavior and potentiates sodium current density of DRG neurons, which is most likely mediated by enhanced expression of NaV1.7 and NaV1.8.

Indexed as

Action PotentialsAnimalsGanglia, SpinalIntervertebral Disc DisplacementLumbar VertebraeMaleNeuronsRatsRats, Sprague-DawleyVoltage-Gated Sodium ChannelsVoltage-Gated Sodium ChannelsDorsal root ganglionExcitabilityLumbar disc herniationNeuropathic painVoltage-gated sodium channels

Identifiers

PMID26245907
OpenAlexW1056728807

What OpenQuestion holds

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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.