Evidence map›Paper›PMID 30541731›Full record

ArticleThe journal of international advanced otology2019

Effects of Melatonin and Dexamethasone on Facial Nerve Neurorrhaphy.

Deniz Tuna Edizer, Zehra Dönmez, Mehmet Gül, Özgür Yiğit, Birgül Yiğitcan, Turgut Adatepe, Nurten Uzun

Open access · diamondAbstract read
In one paragraph

Article in The journal of international advanced otology, 2019. 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
0.4field-weighted citation impact, top 43% 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, 15 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. The role of antioxidants in facial nerve injury.Frontiers in molecular biosciences · 2025
    Review
  6. An in vitro model for postoperative cranial nerve dysfunction and a proposed method of rehabilitation with N-acetylcysteine microparticles.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2024
    Article
  7. Melatonin signalling in Schwann cells during neuroregeneration.Frontiers in cell and developmental biology · 2022
    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

7 authors at 3 institutions in 1 country.

Deniz Tuna EdizerDepartment of Otorhinolaryngology, İstanbul Training and Research Hospital, İstanbul, Turkey.
Zehra DönmezDepartment of Otorhinolaryngology, İstanbul Training and Research Hospital, İstanbul, Turkey.
Mehmet GülDepartment of Histology and Embryology, İnönü University School of Medicine, Malatya, Turkey.
Özgür YiğitDepartment of Otorhinolaryngology, İstanbul Training and Research Hospital, İstanbul, Turkey.
Birgül YiğitcanDepartment of Histology and Embryology, İnönü University School of Medicine, Malatya, Turkey.
Turgut AdatepeDepartment of Electrophysiology, İstanbul Training and Research Hospital, İstanbul, Turkey.
Nurten UzunDepartment of Neurology, İstanbul University-Cerrahpaşa, Cerrahpaşa School of Medicine, İstanbul, Turkey.
Inonu University · TRIstanbul Eye Hospital · TRIstanbul University-Cerrahpaşa · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate the effects of topical and systemic administrations of melatonin and dexamethasone on facial nerve regeneration. MATERIALS AND

methodsIn total, 50 male albino Wistar rats underwent facial nerve axotomy and neurorrhaphy. The animals were divided into 5 groups: control, topical melatonin, systemic melatonin, topical dexamethasone, and systemic dexamethasone. Nerve conduction studies were performed preoperatively and at 3, 6, 9, and 12 weeks after drug administrations. Amplitude and latency of the compound muscle action potentials were recorded. Coapted facial nerves were investigated under light and electron microscopy. Nerve diameter, axon diameter, and myelin thickness were recorded quantitatively.

resultsAmplitudes decreased and latencies increased in both the melatonin and dexamethasone groups. At the final examination, the electrophysiological evidence of facial nerve degeneration was not significantly different between the groups. Histopathological examinations revealed the largest nerve diameter in the melatonin groups, followed by the dexamethasone and control groups (p<0.05). Axon diameter of the control group was smaller than those of the melatonin (topical and systemic) and topical dexamethasone groups (p<0.05). The melatonin groups had almost normal myelin ultrastructure.

conclusionElectrophysiological evaluation did not reveal any potential benefit of dexamethasone and melatonin in contrast to histopathological examination, which revealed beneficial effects of melatonin in particular. These agents may increase the regeneration of facial nerves, but electrophysiological evidence of regeneration may appear later.

Indexed as

Administration, TopicalAnimalsAxotomyCentral Nervous System DepressantsDexamethasoneDisease Models, AnimalElectrophysiological PhenomenaFacial NerveGlucocorticoidsMaleMelatoninMyelin SheathNerve RegenerationNeural ConductionNeurosurgical ProceduresPlastic Surgery ProceduresCentral Nervous System DepressantsDexamethasoneGlucocorticoidsMelatonin

Identifiers

PMID30541731
PMCPMC6483441
OpenAlexW2809786874

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.