Evidence map›Paper›PMID 33083616›Full record

ArticleHeliyon2020

Reconstruction of necrotic submandibular salivary gland using mesenchymal stem cells.

Shamsoulmolouk Najafi, Haleh Nosrati, Zahra Faraji, Abdolreza Mohamadnia, Sadegh Shirian, Seyed Mostafa Mortazavi, Naghmeh Bahrami

Open access · goldAbstract read
In one paragraph

Article in Heliyon, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

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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

7 authors at 5 institutions in 1 country.

Shamsoulmolouk NajafiDental Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Haleh NosratiTehran University of Medical Sciences, Tehran, Iran.
Zahra FarajiTehran University of Medical Science, Tehran, Iran.
Abdolreza MohamadniaChronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), ShahidBeheshti University of Medical Sciences, Tehran, Iran.
Sadegh ShirianDepartment of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran.
Seyed Mostafa MortazaviDepartment of Oral and Maxillofacial Surgery, School of Dental Medicine, Alborz University of Medical Science, Karaj, Iran.
Naghmeh BahramiDepartment of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Tehran University of Medical Sciences · IRAlborz University of Medical SciencesShahid Beheshti University of Medical Sciences · IRShahrekord University · IRUniversity of Tehran · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe efficacy of mesnchymal stem cells (MSCs) to treat the necrotic tissue of salivary glands (SGs) has yet investigated.

objectiveThis study was conducted to investigate the potential capacity of MSCs to restore the function and regenerate the necrotic submandiular gland in the rat animal model.

methodsTwenty-one Sprague-Dawley rats were provided from a breeding colony and randomly divided into three groups including the positive control or induced SG atrophy without treatment, the treatment group or induced SG atrophy with MSCs isolated transplantation and the negative control group consists of healthy rats. The atrophic and necrotic submandiular gland was induced using intraoral duct ligation of the main duct of submandiular gland for one month. The isolated stem cells were confirmed using flow cytometry for CD90 and CD 105. The isolated MSCs were cultured and injected to submandiular gland and the potential efficacy of MSCs to treat the atrophic submandibular glands was evaluated using histopathology on two weeks post-transplantation. To detect the acinar cell protein secretory granules, Alcian Blue and periodic acid shift (PAS) staining were done. For the demonstration of mitotic index or proliferation rate of the SG epithelia tissue, Ki-67 and Smbg proteins expression were evaluated using immunohistochemistry.

resultsThe locally injected MSCs could regenerate the overall histological structure of the necrotic submandibular gland tissue within 2 weeks of post-transplantation. Alcian Blue and PAS staining indicated that the mean amount of serous and mucin secretions in the treatment group was significantly increased compared to the positive control groups. We have also found that the treatment group significantly express higher Ki-67 protein, as a diagnostic marker for cell mitosis and proliferation rate, and lower Smbg protein, as a diagnostic marker, for damage to the submandibular gland than that of control group.

conclusionThis study demonstrates the therapeutic benefits of MSCs isolated from the SG in treating atrophic and necrotic SGs in a rat model. MSCs may be potential candidates for cell-based therapies targeting hypofunction of SG induced by a range of diseases or because of surgery and radiotherapy of head and neck cancers.

Indexed as

BiochemistryCancer researchCell biologyDry mouthMolecular biologyRegenerative medicineSalivary glands reconstructionStem cell researchStem cell transplantation

Identifiers

PMID33083616
PMCPMC7551326
OpenAlexW3092206673

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.