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Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration
All retinal disorders, regardless of their aetiology, involve the activation of oxidative stress and apoptosis pathways. The administration of neuroprotective factors is crucial in all phases of the pathology, even when vision has been completely lost. The retina is one of the most susceptible tissu...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332441/ https://www.ncbi.nlm.nih.gov/pubmed/26263962 http://dx.doi.org/10.3390/molecules200813875 |
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author | Fernández-Sánchez, Laura Lax, Pedro Noailles, Agustina Angulo, Antonia Maneu, Victoria Cuenca, Nicolás |
author_facet | Fernández-Sánchez, Laura Lax, Pedro Noailles, Agustina Angulo, Antonia Maneu, Victoria Cuenca, Nicolás |
author_sort | Fernández-Sánchez, Laura |
collection | PubMed |
description | All retinal disorders, regardless of their aetiology, involve the activation of oxidative stress and apoptosis pathways. The administration of neuroprotective factors is crucial in all phases of the pathology, even when vision has been completely lost. The retina is one of the most susceptible tissues to reactive oxygen species damage. On the other hand, proper development and functioning of the retina requires a precise balance between the processes of proliferation, differentiation and programmed cell death. The life-or-death decision seems to be the result of a complex balance between pro- and anti-apoptotic signals. It has been recently shown the efficacy of natural products to slow retinal degenerative process through different pathways. In this review, we assess the neuroprotective effect of two compounds used in the ancient pharmacopoeia. On one hand, it has been demonstrated that administration of the saffron constituent safranal to P23H rats, an animal model of retinitis pigmentosa, preserves photoreceptor morphology and number, the capillary network and the visual response. On the other hand, it has been shown that systemic administration of tauroursodeoxycholic acid (TUDCA), the major component of bear bile, to P23H rats preserves cone and rod structure and function, together with their contact with postsynaptic neurons. The neuroprotective effects of safranal and TUDCA make these compounds potentially useful for therapeutic applications in retinal degenerative diseases. |
format | Online Article Text |
id | pubmed-6332441 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63324412019-01-24 Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration Fernández-Sánchez, Laura Lax, Pedro Noailles, Agustina Angulo, Antonia Maneu, Victoria Cuenca, Nicolás Molecules Review All retinal disorders, regardless of their aetiology, involve the activation of oxidative stress and apoptosis pathways. The administration of neuroprotective factors is crucial in all phases of the pathology, even when vision has been completely lost. The retina is one of the most susceptible tissues to reactive oxygen species damage. On the other hand, proper development and functioning of the retina requires a precise balance between the processes of proliferation, differentiation and programmed cell death. The life-or-death decision seems to be the result of a complex balance between pro- and anti-apoptotic signals. It has been recently shown the efficacy of natural products to slow retinal degenerative process through different pathways. In this review, we assess the neuroprotective effect of two compounds used in the ancient pharmacopoeia. On one hand, it has been demonstrated that administration of the saffron constituent safranal to P23H rats, an animal model of retinitis pigmentosa, preserves photoreceptor morphology and number, the capillary network and the visual response. On the other hand, it has been shown that systemic administration of tauroursodeoxycholic acid (TUDCA), the major component of bear bile, to P23H rats preserves cone and rod structure and function, together with their contact with postsynaptic neurons. The neuroprotective effects of safranal and TUDCA make these compounds potentially useful for therapeutic applications in retinal degenerative diseases. MDPI 2015-07-31 /pmc/articles/PMC6332441/ /pubmed/26263962 http://dx.doi.org/10.3390/molecules200813875 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Fernández-Sánchez, Laura Lax, Pedro Noailles, Agustina Angulo, Antonia Maneu, Victoria Cuenca, Nicolás Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title | Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title_full | Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title_fullStr | Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title_full_unstemmed | Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title_short | Natural Compounds from Saffron and Bear Bile Prevent Vision Loss and Retinal Degeneration |
title_sort | natural compounds from saffron and bear bile prevent vision loss and retinal degeneration |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332441/ https://www.ncbi.nlm.nih.gov/pubmed/26263962 http://dx.doi.org/10.3390/molecules200813875 |
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