Evidence map›Paper›PMID 32680505›Full record

ArticleBMC veterinary research2020

Neurotoxicity of bupivacaine and liposome bupivacaine after sciatic nerve block in healthy and streptozotocin-induced diabetic mice.

Liljana Markova, Nejc Umek, Simon Horvat, Admir Hadžić, Max Kuroda, Tatjana Stopar Pintarič, Vesna Mrak, Erika Cvetko

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2020. 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
2.9field-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

14 citing papers in PubMed, 23 citations in OpenAlex.

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  14. High-Field Diffusion Tensor Imaging of Median, Tibial, and Sural Nerves in Type 2 Diabetes With Morphometric Analysis.Journal of neuroimaging : official journal of the American Society of Neuroimaging
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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

8 authors at 4 institutions in 3 countries.

Liljana MarkovaDepartment of Anaesthesiology and Surgical Intensive Therapy, University Medical Centre Ljubljana, Zaloška cesta 7, 1000, Ljubljana, Slovenia.
Nejc UmekInstitute of Anatomy, Faculty of Medicine, University of Ljubljana, Korytkova ulica 2, 1000, Ljubljana, Slovenia.
Simon HorvatDepartment of Animal Science, Biotechnology and Immunology, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domžale, Slovenia.
Admir HadžićNYSORA, 2581, Broadway, New York, NY, 10025, USA.
Max KurodaNYSORA, 2581, Broadway, New York, NY, 10025, USA.
Tatjana Stopar PintaričDepartment of Anaesthesiology and Surgical Intensive Therapy, University Medical Centre Ljubljana, Zaloška cesta 7, 1000, Ljubljana, Slovenia.
Vesna MrakDepartment of Animal Science, Biotechnology and Immunology, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domžale, Slovenia.
Erika CvetkoInstitute of Anatomy, Faculty of Medicine, University of Ljubljana, Korytkova ulica 2, 1000, Ljubljana, Slovenia. erika.cvetko@mf.uni-lj.si.
University of Ljubljana · SILjubljana University Medical Centre · SINew York School of Regional Anesthesia · USZiekenhuis Oost-Limburg · BE

Funding

the Slovenian Research Agency P3-0043, P4-0220
6 · The paper itself

Abstract

backgroundLong-acting local anaesthetics (e.g. bupivacaine hydrochloride) or sustained-release formulations of bupivacaine (e.g. liposomal bupivacaine) may be neurotoxic when applied in the setting of diabetic neuropathy. The aim of the study was to assess neurotoxicity of bupivacaine and liposome bupivacaine in streptozotocin (STZ) - induced diabetic mice after sciatic nerve block. We used the reduction in fibre density and decreased myelination assessed by G-ratio (defined as axon diameter divided by large fibre diameter) as indicators of local anaesthetic neurotoxicity.

resultsDiabetic mice had higher plasma levels of glucose (P < 0.001) and significant differences in the tail flick and plantar test thermal latencies compared to healthy controls (P < 0.001). In both diabetic and nondiabetic mice, sciatic nerve block with 0.25% bupivacaine HCl resulted in a significantly greater G-ratio and an axon diameter compared to nerves treated with 1.3% liposome bupivacaine or saline (0.9% sodium chloride) (P < 0.01). Moreover, sciatic nerve block with 0.25% bupivacaine HCl resulted in lower fibre density and higher large fibre and axon diameters compared to the control (untreated) sciatic nerves in both STZ-induced diabetic (P < 0.05) and nondiabetic mice (P < 0.01). No evidence of acute or chronic inflammation was observed in any of the treatment groups.

conclusionsIn our exploratory study the sciatic nerve block with bupivacaine HCl (7 mg/kg), but not liposome bupivacaine (35 mg/kg) or saline, resulted in histomorphometric indices of neurotoxicity. Histologic findings were similar in diabetic and healthy control mice.

Indexed as

Anesthetics, LocalAnimalsBupivacaineDiabetes Mellitus, ExperimentalDiabetic NeuropathiesFemaleInjectionsLiposomesMice, Inbred C57BLMice, Mutant StrainsNerve BlockSciatic NerveAnesthetics, LocalBupivacaineLiposomesBupivacaine hydrochlorideDiabetesLiposome bupivacaine injectable suspensionNeurotoxicityPeripheral neuropathy

Identifiers

PMID32680505
PMCPMC7367396
OpenAlexW3042566401

What OpenQuestion holds

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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.