Evidence map›Paper›PMID 31638217›Full record

ArticleMolecular medicine reports2019

Effects of D‑Ala2, D‑Leu5‑Enkephalin pre‑ and post‑conditioning in a rabbit model of spinal cord ischemia and reperfusion injury.

Danyun Fu, Haitong Liu, Hua Liu, Junyan Yao

Open access · hybridAbstract read
In one paragraph

Article in Molecular medicine reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 39% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.

  1. Histological Findings After Aortic Cross-Clamping in Preclinical Animal Models.Journal of neuropathology and experimental neurology · 2021
    Pooled it
  2. 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

4 authors at 1 institution in 1 country.

Danyun FuDepartment of Anesthesiology, Shanghai General Hospital, Shanghai 200080, P.R. China.
Haitong LiuDepartment of Anesthesiology, Shanghai General Hospital, Shanghai 200080, P.R. China.
Hua LiuDepartment of Anesthesiology, Shanghai General Hospital, Shanghai 200080, P.R. China.
Junyan YaoDepartment of Anesthesiology, Shanghai General Hospital, Shanghai 200080, P.R. China.
Shanghai First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has recently been revealed that during the aorta‑clamped period, D‑Ala2, D‑Leu5‑Enkephalin (DADLE) infusion can protect the spinal cord against ischemia and reperfusion (I/R) injury. However, the protective effects of DADLE administration prior to ischemia or at the time of early reperfusion have not yet been investigated. Drug pre‑ or post‑conditioning can serve as a more valuable clinical strategy. Therefore, the present study was designed to investigate the neuroprotective effect of DADLE infusion at different time intervals in order to determine the optimum time point for ischemic spinal cord protection. A total of 40 New Zealand white rabbits were randomly divided into 5 groups: Sham‑operated (Sham), normal saline pre‑conditioning (NS), DADLE per‑conditioning (Dper), DADLE pre‑conditioning (Dpre) and DADLE post‑conditioning (Dpost). All animals were subjected to spinal cord ischemia for 30 min followed by 48 h reperfusion. Hind limb motor functions were assessed according to the Tarlov criterion when the animals regained consciousness, 6, 24 and 48 h after reperfusion. Histological analysis and the number of viable α‑motor neurons were also used to assess the extent of spinal cord injury. Compared with the NS group, the Tarlov scores and the number of normal neurons were significantly higher in the Dper group (P<0.05), which were consistent with the results of a previous study. In addition, the paraplegia rate and loss of normal motor neurons were lower in the DADLE per‑ and post‑conditioning groups compared with the DADLE pre‑conditioning; however, these were not statistically significant. DADLE 0.05 mg/kg administration at three time points all mitigated normal motor neuron injury in the anterior horn and decreased the paraplegia rates in rabbits. The therapeutic benefits appeared best in the post‑conditioning group with DADLE, and worst in the pre‑conditioning group.

Indexed as

AnimalsEnkephalin, Leucine-2-AlanineFemaleIschemic PreconditioningMaleMotor NeuronsProtective AgentsRabbitsReperfusion InjurySpinal CordSpinal Cord IschemiaEnkephalin, Leucine-2-AlanineProtective Agents

Identifiers

PMID31638217
PMCPMC6854538
OpenAlexW2979732834

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.