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Published on: July 30, 2016
Melatonin: Unveiling the functions and implications in ocular health
Ji Zhang1, Haixiang Zhou1, Yuting Cai1
1Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China; Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China.
Melatonin, a hormone from the pineal gland, protects eye health by reducing blood vessel growth and maintaining the blood-retinal barrier. This hormone shows promise for treating various eye conditions.
Area of Science:
- Ophthalmology
- Endocrinology
- Cell Biology
Background:
- Melatonin is a hormone with diverse physiological roles.
- The eye possesses unique biological functions influenced by melatonin.
- Ocular diseases present significant challenges in treatment and management.
Purpose of the Study:
- To review the ocular functions of melatonin.
- To explore the therapeutic potential of melatonin in eye diseases.
- To summarize evidence on melatonin's role in angiogenesis and blood-retinal barrier integrity.
Main Methods:
- Literature review of scientific studies on melatonin and ocular health.
- Analysis of melatonin's mechanisms in inhibiting angiogenesis.
- Examination of melatonin's effects on blood-retinal barrier (BRB) components.
Main Results:
- Melatonin inhibits angiogenesis by reducing vascular endothelial growth factor (VEGF).
- Melatonin enhances blood-retinal barrier (BRB) integrity through tight junction proteins and pericyte coverage.
- Melatonin modulates autophagy, inflammation, and oxidative stress in the eye, protecting retinal ganglion cells.
Conclusions:
- Melatonin plays a crucial role in maintaining ocular health.
- Melatonin demonstrates significant therapeutic potential for various eye diseases.
- Further research into melatonin's ocular functions could lead to novel treatment strategies.
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