Team:Johns Hopkins/Vit/Bg

From 2011.igem.org

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(Background)
(Background)
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Vitamin A deficiency is a public health problem in more than half of all countries, especially in Africa and Southeast Asia, and it especially affects young children and pregnant women in low-income countries. The numbers associated with this problem are staggering. Two hundred and fifty million preschool children are Vitamin A deficient, and every year, 250,000 to 500,000 Vitamin A deficient children become blind. Over half of them die with 12 months of the onset of blindness.[[File:VitA1.jpg|thumb|300px|The tragic faces behind the numbers]] It is also a major cause of maternal mortality. Another major causes of malnutrition in developing nations is Vitamin C deficiency. It is most prevalent in south east asia in the countries of India and Pakistan. The reason is a simple one.
Vitamin A deficiency is a public health problem in more than half of all countries, especially in Africa and Southeast Asia, and it especially affects young children and pregnant women in low-income countries. The numbers associated with this problem are staggering. Two hundred and fifty million preschool children are Vitamin A deficient, and every year, 250,000 to 500,000 Vitamin A deficient children become blind. Over half of them die with 12 months of the onset of blindness.[[File:VitA1.jpg|thumb|300px|The tragic faces behind the numbers]] It is also a major cause of maternal mortality. Another major causes of malnutrition in developing nations is Vitamin C deficiency. It is most prevalent in south east asia in the countries of India and Pakistan. The reason is a simple one.
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The root of the problem lies in poverty and a lack of awareness. Most people in impoverished countries are not aware of what a balanced diet should contain and cannot purchase the fruits and vegetables they require for such a diet.[[File:VitA3.jpg|thumb|left|300px|Fruits and vegetables are generally too expensive to be a regular part of people diet]] Even if they did, these commodities are generally much more expensive than staple like grain. As a result, malnutrition is very prominent in these developing countries.
The root of the problem lies in poverty and a lack of awareness. Most people in impoverished countries are not aware of what a balanced diet should contain and cannot purchase the fruits and vegetables they require for such a diet.[[File:VitA3.jpg|thumb|left|300px|Fruits and vegetables are generally too expensive to be a regular part of people diet]] Even if they did, these commodities are generally much more expensive than staple like grain. As a result, malnutrition is very prominent in these developing countries.
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We aim to combat this tragic and preventable loss of life by designing a strain of yeast that can produce a Vitamin A precursor, beta-carotene, that our body can convert into vitamin A in large enough quantities that it meets the daily required amounts. We also aim to install a vitamin C biosynthesis pathway in yeast. We hope that by doing this, we will be able to introduce Vitamin C into staples that people eat and drink, such as bread and beer, at no extra cost, as yeast are already used in these processes.
We aim to combat this tragic and preventable loss of life by designing a strain of yeast that can produce a Vitamin A precursor, beta-carotene, that our body can convert into vitamin A in large enough quantities that it meets the daily required amounts. We also aim to install a vitamin C biosynthesis pathway in yeast. We hope that by doing this, we will be able to introduce Vitamin C into staples that people eat and drink, such as bread and beer, at no extra cost, as yeast are already used in these processes.

Revision as of 23:03, 24 September 2011

VitaYeast - Johns Hopkins University, iGEM 2011

Background
Vitamin A deficiency is a public health problem in more than half of all countries, especially in Africa and Southeast Asia, and it especially affects young children and pregnant women in low-income countries. The numbers associated with this problem are staggering. Two hundred and fifty million preschool children are Vitamin A deficient, and every year, 250,000 to 500,000 Vitamin A deficient children become blind. Over half of them die with 12 months of the onset of blindness.
The tragic faces behind the numbers
It is also a major cause of maternal mortality. Another major causes of malnutrition in developing nations is Vitamin C deficiency. It is most prevalent in south east asia in the countries of India and Pakistan. The reason is a simple one.


The root of the problem lies in poverty and a lack of awareness. Most people in impoverished countries are not aware of what a balanced diet should contain and cannot purchase the fruits and vegetables they require for such a diet.
Fruits and vegetables are generally too expensive to be a regular part of people diet
Even if they did, these commodities are generally much more expensive than staple like grain. As a result, malnutrition is very prominent in these developing countries.


We aim to combat this tragic and preventable loss of life by designing a strain of yeast that can produce a Vitamin A precursor, beta-carotene, that our body can convert into vitamin A in large enough quantities that it meets the daily required amounts. We also aim to install a vitamin C biosynthesis pathway in yeast. We hope that by doing this, we will be able to introduce Vitamin C into staples that people eat and drink, such as bread and beer, at no extra cost, as yeast are already used in these processes.