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Melatonin and retinal cell damage: molecular and biological functions.

Naunyn-Schmiedeberg's archives of pharmacology
April 1, 2025
Jingwen Sun et al. (3 authors)
Journal ArticleReviewMolecular Study
Study Details

Study Goal

The researchers aimed to explore melatonin's protective mechanisms for retinal cells and its potential therapeutic applications in retinal disorders.

Results Summary

Melatonin demonstrated beneficial effects in mitigating retinal cell damage by regulating oxidative stress, modulating inflammatory pathways, and influencing programmed cell death. It showed promise in protecting retinal cells from damage and ischemia.

Population

Retinal cells (in vitro and in vivo studies)

Effective Dosage

Not specified

Duration

Not specified

Interactions

None mentioned

Extracted Claims (7)
InterventionDirectionEndpointPopulationDosageImpactClaim #
melatonin
neutral
eye-related disorders
in vitro and in vivo studies
-
has beneficial effects
#1
melatonin
neutral
oxidative stress response pathways
-
-
regulate
#2
melatonin
neutral
expression of antioxidant genes
-
-
modulate
#3
melatonin
neutral
inflammatory pathways such as NF-кB
-
-
modulate
#4
melatonin
decrease
retinal damage
-
-
reduce
#5
melatonin
neutral
programmed cell death such as apoptosis and autophagy
retinal cells
-
affecting
#6
melatonin
neutral
retinal cells from damage and ischemia
-
-
protects
#7
Abstract

The indoleamine hormone, melatonin, is produced in the pineal gland and has an essential role in many physiological functions. The pineal gland is considered to be the most important organ for producing melatonin. Nevertheless, it is important to point out that the eye is also capable of producing melatonin, and has its own circadian rhythm in producing this hormone. Melatonin is mainly produced by a subpopulation of photoreceptors in a diurnal rhythm. Numerous in vitro and in vivo studies have shown the beneficial effects of melatonin in eye-related disorders. These diseases primarily affect retinal cells, highlighting the therapeutic potential of melatonin, especially in the retina. Melatonin's ability to regulate oxidative stress response pathways and modulate the expression of antioxidant genes makes it a promising candidate for mitigating retinal cell damage. Moreover, melatonin can modulate inflammatory pathways such as NF-кB and further reduce retinal damage, as well as affecting programmed cell death such as apoptosis and autophagy in retinal cells. Therefore, the goal of this review is to explore the ways in which melatonin protects retinal cells from damage and ischemia. We discuss the mechanisms involved in order to gain valuable understanding of the possible therapeutic applications of melatonin in protection of retinal cells and treatment of retinal disorders.

Medical Subject Headings (MeSH)
MelatoninHumansAnimalsRetinal DiseasesRetinaOxidative StressAntioxidantsApoptosis
Study Links
Quality Scores
SafetyNot Assessed
Efficacy85/10
Quality75/10
Research Impact Scores
APT Score0.05
Weight Score1.25
Normalized Score0.69
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