Evidence map›Paper›PMID 36752723›Full record

ArticleJournal of biomechanical engineering2023

Diffusivity of Human Cartilage Endplates in Healthy and Degenerated Intervertebral Disks.

Pengling Ren, Peng Chen, Russell A Reeves, Nathan Buchweitz, Haijun Niu, He Gong, Jeremy Mercuri, Charles A Reitman, Hai Yao, Yongren Wu

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanical engineering, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Stress-response exhaustion in intervertebral disc degeneration.Frontiers in cell and developmental biology · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Review
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

10 authors at 4 institutions in 2 countries.

Pengling RenDepartment of Bioengineering, Clemson University, Clemson, SC 29425; Department of Orthopaedics and Physical Medicine, Medical University of South Carolina (MUSC), Charleston, SC 29425; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100052, China; Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
Peng ChenDepartment of Bioengineering, Clemson University, Clemson, SC 29425.
Russell A ReevesDepartment of Radiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107.
Nathan BuchweitzDepartment of Bioengineering, Clemson University, Clemson, SC 29425.
Haijun NiuKey Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
He GongKey Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
Jeremy MercuriDepartment of Bioengineering, Clemson University, Clemson, SC 29425.
Charles A ReitmanDepartment of Orthopaedics and Physical Medicine, Medical University of South Carolina (MUSC), Charleston, SC 29425.
Hai YaoDepartment of Bioengineering, Clemson University, Clemson, SC 29425; Department of Orthopaedics and Physical Medicine, Medical University of South Carolina (MUSC), Charleston, SC 29425.
Yongren WuDepartment of Bioengineering, Clemson University, 68 President Street, MSC501, Clemson, SC 29425; Department of Orthopaedics and Physical Medicine, Medical University of South Carolina (MUSC), Charleston, SC 29425.
Clemson University · USBeihang University · CNMedical University of South Carolina · USThomas Jefferson University · US

Funding

Tissue Structural and Neural Remodeling in Human Sacroiliac JointP20GM121342 · NIGMS · CLEMSON UNIVERSITY · PI Hai Yao · 2018 to 2026
$24.7M
Integrating craniofacial morphology, oral function, temporomandibular biomechanics and mechanobiology to determine sex-specific TMJ pathophysiology in humansR01DE021134 · NIDCR · CLEMSON UNIVERSITY · PI YAO, HAI · 2012 to 2025
$4.7M
Biomechanical Characterization of Human Cartilaginous End-PlateR03AR055775 · NIAMS · CLEMSON UNIVERSITY · PI YAO, HAI · 2009 to 2010
$147k
NIAMS NIH HHS R03 AR055775NIDCR NIH HHS R01 DE021134NIGMS NIH HHS P20 GM121342
6 · The paper itself

Abstract

The cartilage endplates (CEPs) on the superior and inferior surfaces of the intervertebral disk (IVD), are the primary nutrient transport pathways between the disk and the vertebral body. Passive diffusion is responsible for transporting small nutrient and metabolite molecules through the avascular CEPs. The baseline solute diffusivities in healthy CEPs have been previously studied, however alterations in CEP diffusion associated with IVD degeneration remain unclear. This study aimed to quantitatively compare the solute diffusion in healthy and degenerated human CEPs using a fluorescence recovery after photobleaching (FRAP) approach. Seven healthy CEPs and 22 degenerated CEPs were collected from five fresh-frozen human cadaveric spines and 17 patients undergoing spine fusion surgery, respectively. The sodium fluorescein diffusivities in CEP radial and vertical directions were measured using the FRAP method. The CEP calcification level was evaluated by measuring the average X-ray attenuation. No difference was found in solute diffusivities between radial and axial directions in healthy and degenerated CEPs. Compared to healthy CEPs, the average solute diffusivity was 44% lower in degenerated CEPs (Healthy: 29.07 μm2/s (CI: 23.96-33.62 μm2/s); degenerated: 16.32 μm2/s (CI: 13.84-18.84 μm2/s), p < 0.001). The average solute diffusivity had an inverse relationship with the degree of CEP calcification as determined by the normalized X-ray attenuation values (ß = -22.19, R2 = 0.633; p < 0.001). This study suggests that solute diffusion through the disk and vertebral body interface is significantly hindered by CEP calcification, providing clues to help further understand the mechanism of IVD degeneration.

Indexed as

CalcinosisIntervertebral DiscIntervertebral Disc DegenerationBiological TransportCartilageDiffusionHumanscalcificationcartilage endplatediffusion tensordiffusivityfluorescence recovery after photobleaching (FRAP)intervertebral disk

Identifiers

PMID36752723
PMCPMC10159583
OpenAlexW4319460663

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.