El Paso, TX. Dr. Alex Jimenez answers the question what is epigenetics, dietetics? And simplifies the science behind this new method in health care.
Dietetics is a field of science that studies how food and nutrition affect human health. Dietetics strongly emphasizes public health and education for all about the importance of healthy dietary choices.
Dietitian nutritionists present nutrition combined with science to help individuals improve their health. Nutrition and dietetic technicians also work with dietitian nutritionists to provide general nutrition education. Both groups are nationally credentialed and are an essential part of health care and foodservice management.
Professional Dietitian Nutritionists tend to focus on specific populations, or movements, which include:
Food Information Council (2005), more than two-thirds of Americans surveyed expressed a favorable opinion toward the idea of using genetic information to develop personalized nutrition recommendations.International Food Information Council. 2005 Consumer Attitudes toward Functional Foods/Foods for Health Executive Summary. July 2006. http://www.ific.org/ research/upload/2005funcfoodsresearch.pdf. Accessed September 2, 2007
Our epigenome provides an extra layer of instructions that influence gene activity. This is an extra layer of instructions that affect whether or not various genes are turned on or off, and ultimately affect cellular function and metabolism.
Histone acetylation causes the DNA to loosen, allowing access to genes.
Still confused? Don’t worry; it does take some time to learn how it works. So let’s take a
Our DNA is made up of relatively 3 billion nucleotide bases.
The human DNA sequence is somewhat similar to a chimpanzee. However, only a fraction of different sequences is what makes us human.
Genes are a specific set of sequences/instructions on how to make proteins, (complex molecules that trigger biological actions for carrying out life functions).
The DNA gives the instructions for various essential proteins to be produced inside the cell.
The process is known as the Central Dogma of Molecular Biology.
Epigenetics affects how the genes are read by the cells, and determine whether the cells should produce the proteins.
Epigenetics via Nessa Carey
In other words, the same exact DNA sequence for a particular gene may give rise to different outcomes, depending on its epigenotype and, unlike the genetic code, which Gosden and Feinberg liken to �indelible ink,� the epigenetic code can be altered �like a code written in pencil in the margins�Gosden RG, Feinberg AP. Genetics and epigenetics�Nature�s pen-and-pencil set. N Engl J Med. 2007;356:731-733.
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