Evidence map›Paper›PMID 30706999›Full record

ArticleStem cells translational medicine2019

Intranasal Administration of Extracellular Vesicles Derived from Human Teeth Stem Cells Improves Motor Symptoms and Normalizes Tyrosine Hydroxylase Expression in the Substantia Nigra and Striatum of the 6-Hydroxydopamine-Treated Rats.

Karīna Narbute, Vladimirs Piļipenko, Jolanta Pupure, Zane Dzirkale, Ugnė Jonavičė, Virginijus Tunaitis, Karolina Kriaučiūnaitė, Akvilė Jarmalavičiūtė, Baiba Jansone, Vija Kluša and 1 more

Open access · goldAbstract read
In one paragraph

Article in Stem cells translational medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 2% 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

89 citing papers in PubMed, 1 synthesis or guideline pooled it, 154 citations in OpenAlex.

  1. Pooled it
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  14. Isolation methods of exosomes derived from dental stem cells.International journal of oral science · 2025
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  17. Nose-to-brain drug delivery: from bench to bedside.Translational neurodegeneration · 2025
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29 more citing papers are in PubMed but not listed here.

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

11 authors at 2 institutions in 2 countries.

Karīna NarbuteDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Vladimirs PiļipenkoDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Jolanta PupureDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Zane DzirkaleDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Ugnė JonavičėDepartment of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
Virginijus TunaitisDepartment of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
Karolina KriaučiūnaitėDepartment of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
Akvilė JarmalavičiūtėDepartment of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
Baiba JansoneDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Vija KlušaDepartment of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
Augustas PivoriūnasDepartment of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.ORCID 0000-0001-7009-2535
University of Latvia · LVState Research Institute Centre for Innovative Medicine · LT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is the second most common neurodegenerative disorder affecting millions of people worldwide. At present, there is no effective cure for PD; treatments are symptomatic and do not halt progression of neurodegeneration. Extracellular vesicles (EVs) can cross the blood-brain barrier and represent promising alternative to the classical treatment strategies. In the present study, we examined therapeutic effects of intranasal administration of EVs derived from human exfoliated deciduous teeth stem cells (SHEDs) on unilateral 6-hydroxydopamine (6-OHDA) medial forebrain bundle (MFB) rat model of PD. CatWalk gait tests revealed that EVs effectively suppressed 6-OHDA-induced gait impairments. All tested gait parameters (stand, stride length, step cycle, and duty cycle) were significantly improved in EV-treated animals when compared with 6-OHDA-lesion group rats. Furthermore, EVs slowed down numbers of 6-OHDA-induced contralateral rotations in apomorphine test. Improvements in motor function correlated with normalization of tyrosine hydroxylase expression in the striatum and substantia nigra. In conclusion, we demonstrated, for the first time, the therapeutic efficacy of intranasal administration of EVs derived from SHEDs in a rat model of PD induced by 6-OHDA intra-MFB lesion. Our findings could be potentially exploited for the development of new treatment strategies against PD.

Indexed as

Administration, IntranasalAgedAnimalsCorpus StriatumDisease Models, AnimalExtracellular VesiclesHumansMaleMicroscopy, Electron, TransmissionOxidopamineParkinson DiseaseRatsRats, WistarStem CellsSubstantia NigraToothOxidopamineTyrosine 3-MonooxygenaseAdult stem cellsAnimal modelsCell signalingCellular therapyDifferentiationMesenchymal stem cellsParkinson's disease

Identifiers

PMID30706999
PMCPMC6477008
OpenAlexW2914375886

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.