Evidence map›Paper›PMID 31747924›Full record

ArticleBMC musculoskeletal disorders2019

Increased lactic acid content associated with extracellular matrix depletion in a porcine disc degeneration induced by superficial annular lesion.

Jinhui Shi, Xichao Zhou, Zhen Wang, Swamy Kurra, Junjie Niu, Huilin Yang

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
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  3. Review
  4. Article
  5. Article
  6. Lactate and lactylation in intervertebral disc degeneration.Frontiers in molecular biosciences · 2025
    Review
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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 3 institutions in 2 countries.

Jinhui ShiDepartment of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
Xichao ZhouDepartment of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
Zhen WangDepartment of Orthopedics, Suzhou Hospital of Traditional Chinese Medicine, 889 Wuzhongxi Road, Suzhou, 215000, Jiangsu, China.
Swamy KurraDepartment of Orthopedic Surgery, SUNY Upstate Medical University, 720 E. Adams St, Syracuse, NY, 13210, USA.
Junjie NiuDepartment of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
Huilin YangDepartment of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China. suzhouyang8101@126.com.ORCID http://orcid.org/0000-0002-6849-5383
Soochow University · CNSUNY Upstate Medical University · USSuzhou Traditional Chinese Medicine Hospital · CN

Funding

National Natural Science Foundation of China 81400850the Medical Research Project of Jiangsu Commission of Health H2017062
6 · The paper itself

Abstract

backgroundDegenerative intervertebral disc (IVD) disease can cause lower back pain. However, the change of lactic acid content during disc degeneration process still unclear. The objective of this study was to investigate whether the change of the content of lactic acid is associated with depletion of degenerative intervertebral disc extracellular matrix.

methodsA total of 18 miniature pigs were equally divided into annular lesion surgery (AL) and sham group. The lateral superficial annulus fibrosus (AF) of T12-L4 discs in AL group were penetrated by 3.5 mm trepan with the depth of 3 mm, the same IVD were only exposed without any injury in the sham group. At 4, 8 and 12 weeks after surgery, the degree of intervertebral disc degeneration was evaluated by magnetic resonance, histological and biochemical analysis.

resultsNo obvious degeneration was found in sham group. However, disc degeneration was found and gradually worsened in AL group after surgery. Histological analysis showed that the AF was rupture and disorder, the number of cells in nucleus pulposus (NP) was decreased in AL group. Compared with the sham group, the extent of type II collagen (Col-II) and aggrecan in NP tissue was dramatically decreased in AL group, consistent with the results of Col -II immunohistochemistry staining and quantitative reverse transcription polymerase chain reaction (qRT-PCR). Besides, the gene expression of matrix metallopeptidase 3 and 13 also continuous increased in AL group. The amount of lactic acid and nerve growth factor in NP tissue was gradually increased after operation in AL group.

conclusionsThe content of lactic acid gradually increased after annular lesion, associated with the damage of AF structural and the decrease of Col -II and aggrecan in NP tissue, which leading to the disc degeneration. Depletion of extracellular matrix is consistent with lactic acid accumulation inside of IVD.

Indexed as

Disease Models, AnimalAnimalsExtracellular MatrixFemaleIntervertebral DiscIntervertebral Disc DegenerationLactic AcidRandom AllocationSwineSwine, MiniatureLactic AcidAggrecanAnnulus fibrosusIntervertebral disc degenerationLactic acidNucleus pulposus

Identifiers

PMID31747924
PMCPMC6868808
OpenAlexW2991324038

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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.