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Relationships among dietary and seru...

North Dakota State University.

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Relationships among dietary and serum carotenoids, lutein, zeaxanthin, macular pigment, and age-related macular degeneration.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Relationships among dietary and serum carotenoids, lutein, zeaxanthin, macular pigment, and age-related macular degeneration./
作者:	Stastny, Sherri Nordstrom.
面頁冊數:	182 p.
附註:	Adviser: Ardith Brunt.
Contained By:	Dissertation Abstracts International69-03A.
標題:	Gerontology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3305552
ISBN:	9780549518990

Relationships among dietary and serum carotenoids, lutein, zeaxanthin, macular pigment, and age-related macular degeneration.
Stastny, Sherri Nordstrom.

Relationships among dietary and serum carotenoids, lutein, zeaxanthin, macular pigment, and age-related macular degeneration. - 182 p.

Adviser: Ardith Brunt.

Thesis (Ph.D.)--North Dakota State University, 2007.

Inadequate diet is often thought to be a risk factor for many chronic diseases, including age-related macular degeneration (AMD). There are over 600 carotenoids, but fewer than 40 have been identified in the human scrum, including lutein and zeaxanthin. Lutein and zeaxanthin are found in high concentrations in the macula of the eye. The macula is critical for central and near vision, and when the macula deteriorates, individuals are impaired in their driving, reading, and other activities of daily living. The relationship between dietary and serum lutein and zeaxanthin levels is important because it is theorized that increased serum levels lead to an increased macular pigment density. It is further theorized that increased macular pigment density is important because it is preventive to AMD, through either blue light filtration or perhaps due to the antioxidant activities of lutein and zeaxanthin. The etiology of AMD is unknown, and more research is needed.

ISBN: 9780549518990Subjects--Topical Terms:

533633
Gerontology.

Relationships among dietary and serum carotenoids, lutein, zeaxanthin, macular pigment, and age-related macular degeneration.
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520 $a Inadequate diet is often thought to be a risk factor for many chronic diseases, including age-related macular degeneration (AMD). There are over 600 carotenoids, but fewer than 40 have been identified in the human scrum, including lutein and zeaxanthin. Lutein and zeaxanthin are found in high concentrations in the macula of the eye. The macula is critical for central and near vision, and when the macula deteriorates, individuals are impaired in their driving, reading, and other activities of daily living. The relationship between dietary and serum lutein and zeaxanthin levels is important because it is theorized that increased serum levels lead to an increased macular pigment density. It is further theorized that increased macular pigment density is important because it is preventive to AMD, through either blue light filtration or perhaps due to the antioxidant activities of lutein and zeaxanthin. The etiology of AMD is unknown, and more research is needed.
520 $a Dietary intake of lutein and zeaxanthin is inadequate in the American diet. Americans do not eat enough fruits and vegetables where lutein and zeaxanthin are primarily found. Currently, 1.75 million Americans have advanced stages of AMD, and by 2030, that number is expected to double. Egg intake is on the rise, but further public education is needed to alert the public that eggs are a key source of lutein and zeaxanthin and may be preventive to AMD.
520 $a In this pilot study of four cases, the researcher trialed a dietary intervention of lutein and zcaxanthin patient education and/or supplements in an ophthalmology clinic with individuals currently diagnosed with AMD. Patient education materials were designed so they could be used in clinical settings as well as for the general public via the North Dakota State University Extension Service.
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