Journals / Retina-Vitreus / 2016 / Cilt: 24 - Sayı: 1

The Role of Micronutrition in Age-related Macular Degeneration

Yaşa Bağlı Maküla Dejenerasyonunda Mikronütrisyonun Rolü

Pages
89–95
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this review the role of antioxidants in the etiology and progression of the age-related macular degeneration is discussed.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Age-related macular degeneration is the leading cause of blindness over 50 years old population.
📊
Key Findings & Data:Retina is the most affected tissue by oxidation because of its rich in polyunsaturated fatty acids and oxygen.
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Conclusion & Impact:In this review the role of antioxidants in the etiology and progression of the age-related macular degeneration is discussed.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Age-related macular degeneration is the leading cause of blindness over 50 years old population. Yet its pathogenesis remains poorly understood, it's thought to be a multifactorial disease. The main risk factors are age, genetic predisposition, sunlight, smoking and malnutrition. Dietary ingredients in the retina try to protect the tissue by fighting oxidative stress and inflamation. Oxygen plays a major role in the oxidative stress. Normally oxygen is reducted by turning into water. When incomplet reduction is formed, reactive oxygen specieses (ROS) are occured. They are called free radicals and affect proteins, DNA and lipids. Antioxidants fight harmful effects of oxygen, control the free radicals, work on a fine balance between the formation and elimination of ROS. When this balance fails, oxidative stress occurs. Retina is the most affected tissue by oxidation because of its rich in polyunsaturated fatty acids and oxygen. In this review the role of antioxidants in the etiology and progression of the age-related macular degeneration is discussed.

Özet

Yaşa bağlı maküla dejenerasyonu elli yaş üstü populasyonda en önemli körlük sebebidir. Hastalığın patogenezi hala tam olarak aydınlatılamamıştır. Multifaktöriyel bir hastalık olarak kabul edilmektedir. En önemli risk faktörleri yaş, genetik yatkınlık, güneş ışığı, sigara kullanımı ve yetersiz beslenmedir. Retinada diyet kaynaklı maddeler, oksidatif stres ve inflamasyonla savaşarak dokuyu korumaya çalışırlar. Oksijen, oksidatif streste major rol oynar. Normalde oksijen metabolik tepkimeler sonucunda suya dönüşerek tam redükte olur, inkomplet redükte olduğunda stabil olmayan reaktif oksijen parçaları (ROS) oluşur. Serbest radikal olarak bilinen bu moleküller lipit, protein, DNA gibi hücrelere zarar verirler. Antioksidanlar, oksijenin bu zararlı etkilerine karşı savaşırlar, serbest radikal oluşumunu kontrol altında tutarlar. Ancak bu denge bozulduğunda oksidatif stres ortaya çıkar. Retina poliansatüre yağ asitlerinden ve oksijenden zengin olduğu için oksidatif stresten en fazla etkilenen dokulardan biridir. Bu derlemede yapılan çalışmalar ışığında antioksidanların yaşa bağlı maküla dejenerasyonunun etyolojisi ve progresyonundaki rolü tartışılacaktır.

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Cite This Article

UZUNOVALI, B., ÖNER, A. Ö. (2016). The Role of Micronutrition in Age-related Macular Degeneration. Retina-Vitreus, Cilt: 24 - Sayı: 1, 89–95. https://ajindex.com/articles/307360

References (15)

  1. Congdon N, O'Colman B, Klaver CC, et al. Causes and preva- lence of visual impairment among adults in the United States. Arc Ophthalmol 2004;122:477-85.
  2. Friedman DS, O'Colman BJ, Munoz B, et al. Prevalence of age-related macular degeneration in the United States. Arch Ophthalmol 2004;122:564-72.
  3. Mullins RF, Russell SR, Anderson DH, et al. Drusen associ- ated with aging and age-related macular degeneration con- tain proteins common to extracellular deposits associated with atherosclerosis, elastosis,amyloidosis and dense deposit disease. Faseb J 2000;14:835-46. Ryan S. Age-related macular degeneration. Retina, vol.2. St. Louis: CV Mosby, 1994.
  4. Boulton M, Roanowska M, Wess T. Ageing of the retinal pig- ment epithelium:implications for transplantation. Graefes Arch Clin Exp Ophthalmol 2004; 242:76-84. Age-related Eye Disease Study Research Group. A simpli- fied severity scale for age-related macular degeneration. Arch Ophthalmol 2005;123:1570-4.
  5. Beatty S, Koh H, Phil M, et al. The role of oxidative stres in the pathogenesis of age-related macular degeneration. Surv Ophthalmol 2000;45:115-34.
  6. Ambati J, Ambati BK Yoo SH, et al. Age-related macular degeneration:etiology, pathogenesis and thrapeutic strate- gies. Surv Ophthalmol 2003;48:257-93.
  7. Evereklioğlu C, Er H, Doğanay S, et al. Nitric oxide and lipid peroxidation are increased and associated with decreased an- tioxidant enzyme activities in patients with age-related macu- lar degeneration. Ophthalmologica 2003;106:129-36.
  8. Gren DR, Amarante-Mendes GP. The point of no return: mito- kondria, caspases and the commitment to celll death. Result probl cell differ. 1998;24:45-61.
  9. Erdem Ü, Bayraktar MZ, Uysal Y. Yaşa bağlı maküla de- jenerasyonunda antioksidan tedavinin etkinliği-1. Ret-Vit 2004;12:26-9.
  10. Alves-Rodrigues A, Shao A. The science behind lutein. Toxicol Lett 2004;150:57-83.
  11. Nolan J, O'Donovan O, Kavanagh H, et al. Macular pigment and percentage of body fat. Investig Ophtalmol Vis Sci 2004; 45:3940-50.
  12. Riso P, Porrini M. Determination of carotenoids in vegetable foods and plasma. Int J Vitam Nutr Res 1997;67:47-54.
  13. Snodderly D.M, Auran J.D, Delori F.C. The macular pigment. II. Spatial distribution in primate retinas. Investig Ophthal- mol Vis Sci 1984;25:674-85.
  14. Sommerburg O.G, Siems W.G. Hurst J.S, et al. Lutein and zeaxanthin are associated with photoreceptors in the human retina. Curr Eye Res 1999;19:492-5.
  15. Trieschmann M, Spital G, Lommatzsch A, et al. Macular pigment:Quantitative analysis on autofluor